version 1.68, 2001/03/22 13:40:07
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version 1.274, 2006/07/28 19:16:08
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# The LearningOnline Network |
# The LearningOnline Network with CAPA |
# Search Catalog |
# Search Catalog |
# |
# |
# 03/08/2001 Scott Harrison |
# $Id$ |
# Scott Harrison: 03/12/2001, 03/13/2001, 03/14/2001, 03/15/2001, 03/19/2001 |
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# Scott Harrison: 03/20/2001 |
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# |
# |
# Functions |
# Copyright Michigan State University Board of Trustees |
# |
# |
# handler(server reference) : interacts with the Apache server layer |
# This file is part of the LearningOnline Network with CAPA (LON-CAPA). |
# (for /adm/searchcat URLs) |
# |
# simpletextfield(name,value) : returns HTML formatted string for simple text |
# LON-CAPA is free software; you can redistribute it and/or modify |
# field |
# it under the terms of the GNU General Public License as published by |
# simplecheckbox(name,value) : returns HTML formatted string for simple |
# the Free Software Foundation; either version 2 of the License, or |
# checkbox |
# (at your option) any later version. |
# searchphrasefield(title,name,value) : returns HTML formatted string for |
# |
# a search expression phrase field |
# LON-CAPA is distributed in the hope that it will be useful, |
# dateboxes(name, defaultmonth, defaultday, defaultyear) : returns HTML |
# but WITHOUT ANY WARRANTY; without even the implied warranty of |
# formatted string |
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
# for a calendar date |
# GNU General Public License for more details. |
# selectbox(title,name,value,%HASH=options) : returns HTML formatted string for |
# |
# a selection box field |
# You should have received a copy of the GNU General Public License |
# advancedsearch(server reference, environment reference) : perform a complex |
# along with LON-CAPA; if not, write to the Free Software |
# multi-field logical query |
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
# filled(field) : determines whether a given field has been filled |
# |
# basicsearch(server reference, environment reference) : perform a simple |
# /home/httpd/html/adm/gpl.txt |
# single-field logical query |
# |
# output_blank_field_error(server reference) : outputs a message saying that |
# http://www.lon-capa.org/ |
# more fields need to be filled in |
# |
# output_results(output mode, |
############################################################################### |
# server reference, |
############################################################################### |
# environment reference, |
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# reply list reference) : outputs results from search |
=pod |
# build_SQL_query(field name, logic) : builds a SQL query string from a |
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# logical expression with AND/OR keywords |
=head1 NAME |
# recursive_SQL_query_build(field name, reverse notation expression) : |
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# builds a SQL query string from a reverse notation expression |
lonsearchcat - LONCAPA Search Interface |
# logical expression with AND/OR keywords |
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=head1 SYNOPSIS |
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Search interface to LON-CAPAs digital library |
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=head1 DESCRIPTION |
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This module enables searching for a distributed browseable catalog. |
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This is part of the LearningOnline Network with CAPA project |
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described at http://www.lon-capa.org. |
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lonsearchcat presents the user with an interface to search the LON-CAPA |
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digital library. lonsearchcat also initiates the execution of a search |
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by sending the search parameters to LON-CAPA servers. The progress of |
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search (on a server basis) is displayed to the user in a separate window. |
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=head1 Internals |
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=over 4 |
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=cut |
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############################################################################### |
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############################################################################### |
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package Apache::lonsearchcat; |
package Apache::lonsearchcat; |
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use strict; |
use strict; |
use Apache::Constants qw(:common); |
use Apache::Constants qw(:common :http); |
use Apache::lonnet(); |
use Apache::lonnet; |
use Apache::File(); |
use Apache::File(); |
use CGI qw(:standard); |
use CGI qw(:standard); |
use Text::Query; |
use Text::Query; |
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use GDBM_File; |
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use Apache::loncommon(); |
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use Apache::lonmysql(); |
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use Apache::lonmeta; |
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use Apache::lonhtmlcommon; |
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use Apache::lonlocal; |
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use LONCAPA::lonmetadata(); |
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use HTML::Entities(); |
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use Parse::RecDescent; |
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use Apache::lonnavmaps; |
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use Apache::lonindexer(); |
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use lib '/home/httpd/lib/perl/'; |
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use LONCAPA; |
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###################################################################### |
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###################################################################### |
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## |
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## Global variables |
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## |
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###################################################################### |
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###################################################################### |
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my %groupsearch_db; # Database hash used to save values for the |
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# groupsearch RAT interface. |
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my %persistent_db; # gdbm hash which holds data which is supposed to |
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# persist across calls to lonsearchcat.pm |
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# The different view modes and associated functions |
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my %Views = ("detailed" => \&detailed_citation_view, |
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"detailedpreview" => \&detailed_citation_preview, |
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"summary" => \&summary_view, |
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"summarypreview" => \&summary_preview, |
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"fielded" => \&fielded_format_view, |
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"xml" => \&xml_sgml_view, |
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"compact" => \&compact_view); |
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my %language; |
###################################################################### |
my $scrout; |
###################################################################### |
my %metadatafields; |
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my %cprtag; |
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my %mimetag; |
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my $closebutton; |
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my $basicviewselect=<<END; |
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<select name='basicviewselect'> |
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<option value='Detailed Citation View'>Detailed Citation View</option> |
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<option value='Summary View'>Summary View</option> |
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<option value='Fielded Format'>Fielded Format</option> |
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<option value='XML/SGML'>XML/SGML</option> |
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</select> |
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END |
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my $advancedviewselect=<<END; |
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<select name='advancedviewselect'> |
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<option value='Detailed Citation View'>Detailed Citation View</option> |
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<option value='Summary View'>Summary View</option> |
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<option value='Fielded Format'>Fielded Format</option> |
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<option value='XML/SGML'>XML/SGML</option> |
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</select> |
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END |
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sub handler { |
sub handler { |
my $r = shift; |
my $r = shift; |
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# &set_defaults(); |
# -------------------------------------- see if called from an interactive mode |
# |
map { |
# set form defaults |
my ($name, $value) = split(/=/,$_); |
# |
$value =~ tr/+/ /; |
my $hidden_fields;# Hold all the hidden fields used to keep track |
$value =~ s/%([a-fA-F0-9][a-fA-F0-9])/pack("C",hex($1))/eg; |
# of the search system state |
if ($name eq 'catalogmode') { |
my $importbutton; # button to take the selected results and go to group |
$ENV{'form.'.$name}=$value; |
# sorting |
} |
my $diropendb; # The full path to the (temporary) search database file. |
} (split(/&/,$ENV{'QUERY_STRING'})); |
# This is set and used in &handler() and is also used in |
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# &output_results(). |
$r->content_type('text/html'); |
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my $loaderror=&Apache::lonnet::overloaderror($r); |
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if ($loaderror) { return $loaderror; } |
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# |
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my $closebutton; # button that closes the search window |
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# This button is different for the RAT compared to |
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# normal invocation. |
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# |
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&Apache::loncommon::content_type($r,'text/html'); |
$r->send_http_header; |
$r->send_http_header; |
return OK if $r->header_only; |
return OK if $r->header_only; |
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## |
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## Prevent caching of the search interface window. Hopefully this means |
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## we will get the launch=1 passed in a little more. |
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&Apache::loncommon::no_cache($r); |
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## |
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## Pick up form fields passed in the links. |
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## |
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&Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'}, |
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['catalogmode','launch','acts','mode','form','element','pause', |
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'phase','persistent_db_id','table','start','show', |
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'cleargroupsort','titleelement']); |
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## |
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## The following is a trick - we wait a few seconds if asked to so |
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## the daemon running the search can get ahead of the daemon |
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## printing the results. We only need (theoretically) to do |
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## this once, so the pause indicator is deleted |
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## |
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if (exists($env{'form.pause'})) { |
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sleep(1); |
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delete($env{'form.pause'}); |
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} |
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## |
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## Initialize global variables |
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## |
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my $domain = $r->dir_config('lonDefDomain'); |
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$diropendb= "/home/httpd/perl/tmp/". |
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"$env{'user.domain'}_$env{'user.name'}_sel_res.db"; |
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# |
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# set the name of the persistent database |
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# $env{'form.persistent_db_id'} can only have digits in it. |
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if (! exists($env{'form.persistent_db_id'}) || |
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($env{'form.persistent_db_id'} =~ /\D/) || |
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($env{'form.launch'} eq '1')) { |
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$env{'form.persistent_db_id'} = time; |
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} |
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my $persistent_db_file = "/home/httpd/perl/tmp/". |
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&escape($domain). |
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'_'.&escape($env{'user.name'}). |
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'_'.$env{'form.persistent_db_id'}.'_persistent_search.db'; |
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## |
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&Apache::lonhtmlcommon::clear_breadcrumbs(); |
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if (exists($env{'request.course.id'}) && $env{'request.course.id'} ne '') { |
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&Apache::lonhtmlcommon::add_breadcrumb |
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({href=>'/adm/searchcat?'. |
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'catalogmode='.$env{'form.catalogmode'}. |
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'&launch='.$env{'form.launch'}. |
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'&mode='.$env{'form.mode'}, |
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text=>"Course and Catalog Search", |
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target=>'_top', |
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bug=>'Searching',}); |
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} else { |
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&Apache::lonhtmlcommon::add_breadcrumb |
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({href=>'/adm/searchcat?'. |
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'catalogmode='.$env{'form.catalogmode'}. |
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'&launch='.$env{'form.launch'}. |
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'&mode='.$env{'form.mode'}, |
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text=>"Catalog Search", |
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target=>'_top', |
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bug=>'Searching',}); |
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} |
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# |
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if ($env{'form.phase'} !~ m/(basic|adv|course)_search/) { |
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if (! &get_persistent_form_data($persistent_db_file)) { |
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if ($env{'form.phase'} =~ /(run_search|results)/) { |
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&Apache::lonnet::logthis('lonsearchcat:'. |
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'Unable to recover data from '. |
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$persistent_db_file); |
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my $msg = |
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'We were unable to retrieve data describing your search. '. |
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'This is a serious error and has been logged. '. |
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'Please alert your LON-CAPA administrator.'; |
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&Apache::loncommon::simple_error_page($r,'Search Error', |
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$msg); |
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return OK; |
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} |
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} |
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} else { |
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&clean_up_environment(); |
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} |
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## |
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## Clear out old values from groupsearch database |
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## |
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untie %groupsearch_db if (tied(%groupsearch_db)); |
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if (($env{'form.cleargroupsort'} eq '1') || |
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(($env{'form.launch'} eq '1') && |
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($env{'form.catalogmode'} eq 'import'))) { |
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if (tie(%groupsearch_db,'GDBM_File',$diropendb,&GDBM_WRCREAT(),0640)) { |
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&start_fresh_session(); |
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untie %groupsearch_db; |
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delete($env{'form.cleargroupsort'}); |
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} else { |
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# This is a stupid error to give to the user. |
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# It really tells them nothing. |
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my $msg = 'Unable to tie hash to db file.'; |
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&Apache::loncommon::simple_error_page($r,'Search Error', |
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$msg); |
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return OK; |
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} |
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} |
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## |
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## Configure hidden fields |
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## |
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$hidden_fields = '<input type="hidden" name="persistent_db_id" value="'. |
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$env{'form.persistent_db_id'}.'" />'."\n"; |
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if (exists($env{'form.catalogmode'})) { |
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$hidden_fields .= &hidden_field('catalogmode'); |
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} |
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if (exists($env{'form.form'})) { |
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$hidden_fields .= &hidden_field('form'); |
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} |
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if (exists($env{'form.element'})) { |
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$hidden_fields .= &hidden_field('element'); |
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} |
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if (exists($env{'form.titleelement'})) { |
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$hidden_fields .= &hidden_field('titleelement'); |
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} |
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if (exists($env{'form.mode'})) { |
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$hidden_fields .= &hidden_field('mode'); |
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} |
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## |
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## Configure dynamic components of interface |
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## |
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if ($env{'form.catalogmode'} eq 'interactive') { |
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$closebutton="<input type='button' name='close' value='CLOSE' "; |
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if ($env{'form.phase'} =~ /(results|run_search)/) { |
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$closebutton .="onClick='parent.close()'"; |
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} else { |
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$closebutton .="onClick='self.close()'"; |
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} |
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$closebutton .=">\n"; |
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} elsif ($env{'form.catalogmode'} eq 'import') { |
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$closebutton="<input type='button' name='close' value='CLOSE' "; |
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if ($env{'form.phase'} =~ /(results|run_search)/) { |
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$closebutton .="onClick='parent.close()'"; |
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} else { |
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$closebutton .="onClick='self.close()'"; |
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} |
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$closebutton .= ">"; |
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$importbutton=<<END; |
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<input type='button' name='import' value='IMPORT' |
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onClick='javascript:select_group()'> |
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END |
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} else { |
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$closebutton = ''; |
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$importbutton = ''; |
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} |
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## |
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## Sanity checks on form elements |
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## |
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if (!defined($env{'form.viewselect'})) { |
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$env{'form.viewselect'} ="summary"; |
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} |
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$env{'form.phase'} = 'disp_basic' if (! exists($env{'form.phase'})); |
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$env{'form.show'} = 20 if (! exists($env{'form.show'})); |
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# |
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$env{'form.searchmode'} = 'basic' if (! exists($env{'form.searchmode'})); |
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if ($env{'form.phase'} eq 'adv_search' || |
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$env{'form.phase'} eq 'disp_adv') { |
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$env{'form.searchmode'} = 'advanced'; |
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} elsif ($env{'form.phase'} eq 'course_search') { |
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$env{'form.searchmode'} = 'course_search'; |
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} |
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# |
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if ($env{'form.searchmode'} eq 'advanced') { |
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&Apache::lonhtmlcommon::add_breadcrumb |
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({href=>'/adm/searchcat?phase=disp_adv&'. |
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'catalogmode='.$env{'form.catalogmode'}. |
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'&launch='.$env{'form.launch'}. |
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'&mode='.$env{'form.mode'}, |
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text=>"Advanced Search", |
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bug=>'Searching',}); |
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} elsif ($env{'form.searchmode'} eq 'course search') { |
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&Apache::lonhtmlcommon::add_breadcrumb |
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({href=>'/adm/searchcat?phase=disp_adv&'. |
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'catalogmode='.$env{'form.catalogmode'}. |
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'&launch='.$env{'form.launch'}. |
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'&mode='.$env{'form.mode'}, |
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text=>"Course Search", |
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bug=>'Searching',}); |
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} |
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## |
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## Switch on the phase |
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## |
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if ($env{'form.phase'} eq 'disp_basic') { |
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&print_basic_search_form($r,$closebutton,$hidden_fields); |
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} elsif ($env{'form.phase'} eq 'disp_adv') { |
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&print_advanced_search_form($r,$closebutton,$hidden_fields); |
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} elsif ($env{'form.phase'} eq 'results') { |
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&display_results($r,$importbutton,$closebutton,$diropendb); |
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} elsif ($env{'form.phase'} =~ /^(sort|run_search)$/) { |
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my ($query,$customquery,$customshow,$libraries,$pretty_string) = |
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&get_persistent_data($persistent_db_file, |
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['query','customquery','customshow', |
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'libraries','pretty_string']); |
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if ($env{'form.phase'} eq 'sort') { |
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&print_sort_form($r,$pretty_string); |
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} elsif ($env{'form.phase'} eq 'run_search') { |
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&run_search($r,$query,$customquery,$customshow, |
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$libraries,$pretty_string); |
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} |
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} elsif ($env{'form.phase'} eq 'course_search') { |
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&course_search($r); |
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} elsif(($env{'form.phase'} eq 'basic_search') || |
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($env{'form.phase'} eq 'adv_search')) { |
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# |
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# We are running a search, try to parse it |
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my ($query,$customquery,$customshow,$libraries) = |
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(undef,undef,undef,undef); |
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my $pretty_string; |
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if ($env{'form.phase'} eq 'basic_search') { |
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($query,$pretty_string,$libraries) = |
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&parse_basic_search($r,$closebutton,$hidden_fields); |
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return OK if (! defined($query)); |
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&make_persistent({ basicexp => $env{'form.basicexp'}}, |
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$persistent_db_file); |
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} else { # Advanced search |
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($query,$customquery,$customshow,$libraries,$pretty_string) |
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= &parse_advanced_search($r,$closebutton,$hidden_fields); |
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return OK if (! defined($query)); |
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} |
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&make_persistent({ query => $query, |
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customquery => $customquery, |
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customshow => $customshow, |
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libraries => $libraries, |
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pretty_string => $pretty_string }, |
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$persistent_db_file); |
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# |
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# Set up table |
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if (! defined(&create_results_table())) { |
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my $errorstring=&Apache::lonmysql::get_error(); |
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&Apache::lonnet::logthis('lonsearchcat.pm: Unable to create '. |
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'needed table. lonmysql error:'. |
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$errorstring); |
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my $msg = |
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'Unable to create table in which to store search results. '. |
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'The search has been aborted.'; |
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&Apache::loncommon::simple_error_page($r,'Search Error', |
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$msg); |
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return OK; |
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} |
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delete($env{'form.launch'}); |
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if (! &make_form_data_persistent($r,$persistent_db_file)) { |
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my $msg= |
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'Unable to properly store search information. '. |
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'The search has been aborted.'; |
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&Apache::loncommon::simple_error_page($r,'Search Error', |
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$msg); |
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return OK; |
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} |
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## |
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## Print out the frames interface |
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## |
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if (defined($query)) { |
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&print_frames_interface($r); |
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} |
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} |
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return OK; |
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} |
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%metadatafields=(); |
# |
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# The mechanism used to store values away and retrieve them does not |
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# handle the case of missing environment variables being significant. |
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# |
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# This routine sets non existant checkbox form elements to ''. |
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# |
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sub clean_up_environment { |
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if ($env{'form.phase'} eq 'basic_search') { |
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if (! exists($env{'form.related'})) { |
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$env{'form.related'} = ''; |
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} |
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if (! exists($env{'form.domains'})) { |
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$env{'form.domains'} = ''; |
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} |
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} elsif ($env{'form.phase'} eq 'adv_search') { |
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foreach my $field ('title','keywords','notes', |
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'abstract','standards','mime') { |
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if (! exists($env{'form.'.$field.'_related'})) { |
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$env{'form.'.$field.'_related'} = ''; |
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} |
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} |
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} elsif ($env{'form.phase'} eq 'course_search') { |
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if (! exists($env{'form.crsrelated'})) { |
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$env{'form.crsrelated'} = ''; |
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} |
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} |
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} |
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my $hidden=''; |
sub hidden_field { |
$hidden=<<END if $ENV{'form.catalogmode'} eq 'interactive'; |
my ($name,$value) = @_; |
<input type='hidden' name='catalogmode' value='interactive'> |
if (! defined($value)) { |
END |
$value = $env{'form.'.$name}; |
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} |
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return '<input type="hidden" name="'.$name.'" value="'.$value.'" />'.$/; |
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} |
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$closebutton=<<END if $ENV{'form.catalogmode'} eq 'interactive'; |
###################################################################### |
<input type="button" name="close" value='CLOSE' onClick="self.close()"> |
###################################################################### |
END |
## |
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## Course Search |
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## |
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###################################################################### |
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###################################################################### |
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{ # Scope the course search to avoid global variables |
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# |
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# Variables For course search |
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my %alreadyseen; |
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my %hash; |
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my $totalfound; |
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sub make_symb { |
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my ($id)=@_; |
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my ($mapid,$resid)=split(/\./,$id); |
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my $map=$hash{'map_id_'.$mapid}; |
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my $res=$hash{'src_'.$id}; |
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my $symb=&Apache::lonnet::encode_symb($map,$resid,$res); |
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return $symb; |
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} |
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sub course_search { |
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my $r=shift; |
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my $pretty_search_string = '<b>'.$env{'form.courseexp'}.'</b>'; |
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my $search_string = $env{'form.courseexp'}; |
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my @New_Words; |
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undef(%alreadyseen); |
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if ($env{'form.crsrelated'}) { |
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($search_string,@New_Words) = &related_version($env{'form.courseexp'}); |
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if (@New_Words) { |
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$pretty_search_string .= ' '.&mt("with related words").": <b>@New_Words</b>."; |
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} else { |
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$pretty_search_string .= ' '.&mt('with no related words')."."; |
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} |
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} |
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my $fulltext=$env{'form.crsfulltext'}; |
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my $discuss=$env{'form.crsdiscuss'}; |
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my @allwords=($search_string,@New_Words); |
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$totalfound=0; |
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$r->print(&Apache::loncommon::start_page('Course Search'). |
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'<hr /><center><font size="+2" face="arial">'. |
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$pretty_search_string.'</font></center>'. |
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'<hr /><b>'.&mt('Course content').':</b><br />'); |
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$r->rflush(); |
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# ======================================================= Go through the course |
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my $c=$r->connection; |
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if (tie(%hash,'GDBM_File',$env{'request.course.fn'}.".db", |
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&GDBM_READER(),0640)) { |
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foreach (sort(keys(%hash))) { |
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if ($c->aborted()) { last; } |
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if (($_=~/^src\_(.+)$/)) { |
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if ($hash{'randomout_'.$1} & !$env{'request.role.adv'}) { |
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next; |
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} |
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my $symb=&make_symb($1); |
|
&checkonthis($r,$1,$hash{$_},0,&Apache::lonnet::gettitle($symb), |
|
$fulltext,$symb,@allwords); |
|
} |
|
} |
|
untie(%hash); |
|
} |
|
unless ($totalfound) { |
|
$r->print('<p>'.&mt('No matches found in resources').'.</p>'); |
|
} |
|
|
|
# Check discussions if requested |
|
if ($discuss) { |
|
my $totaldiscussions = 0; |
|
$r->print('<br /><br /><b>'.&mt('Discussion postings').':</b><br />'); |
|
my $navmap = Apache::lonnavmaps::navmap->new(); |
|
my @allres=$navmap->retrieveResources(); |
|
my %discussiontime = &Apache::lonnet::dump('discussiontimes', |
|
$env{'course.'.$env{'request.course.id'}.'.domain'}, |
|
$env{'course.'.$env{'request.course.id'}.'.num'}); |
|
foreach my $resource (@allres) { |
|
my $result = ''; |
|
my $applies = 0; |
|
my $symb = $resource->symb(); |
|
my $ressymb = $symb; |
|
if ($symb =~ m#(___adm/\w+/\w+)/(\d+)/bulletinboard$#) { |
|
$ressymb = 'bulletin___'.$2.$1.'/'.$2.'/bulletinboard'; |
|
unless ($ressymb =~ m#bulletin___\d+___adm/wrapper#) { |
|
$ressymb=~s#(bulletin___\d+___)#$1adm/wrapper/#; |
|
} |
|
} |
|
if (defined($discussiontime{$ressymb})) { |
|
my %contrib = &Apache::lonnet::restore($ressymb,$env{'request.course.id'}, |
|
$env{'course.'.$env{'request.course.id'}.'.domain'}, |
|
$env{'course.'.$env{'request.course.id'}.'.num'}); |
|
if ($contrib{'version'}) { |
|
for (my $id=1;$id<=$contrib{'version'};$id++) { |
|
unless (($contrib{'hidden'}=~/\.$id\./) || ($contrib{'deleted'}=~/\.$id\./)) { |
|
if ($contrib{$id.':subject'}) { |
|
$result .= $contrib{$id.':subject'}; |
|
} |
|
if ($contrib{$id.':message'}) { |
|
$result .= $contrib{$id.':message'}; |
|
} |
|
if ($contrib{$id,':attachmenturl'}) { |
|
if ($contrib{$id,':attachmenturl'} =~ m-/([^/]+)$-) { |
|
$result .= $1; |
|
} |
|
} |
|
$applies = &checkwords($result,$applies,@allwords); |
|
} |
|
} |
|
} |
|
} |
|
# Does this discussion apply? |
|
if ($applies) { |
|
my ($map,$ind,$url)=&Apache::lonnet::decode_symb($ressymb); |
|
my $disctype = &mt('resource'); |
|
if ($url =~ m#/bulletinboard$#) { |
|
if ($url =~m#^adm/wrapper/adm/.*/bulletinboard$#) { |
|
$url =~s#^adm/wrapper##; |
|
} |
|
$disctype = &mt('bulletin board'); |
|
} else { |
|
$url = '/res/'.$url; |
|
} |
|
if ($url =~ /\?/) { |
|
$url .= '&symb='; |
|
} else { |
|
$url .= '?symb='; |
|
} |
|
$url .= &escape($resource->symb()); |
|
my $title = $resource->compTitle(); |
|
$r->print('<br /><a href="'.$url.'" target="cat">'. |
|
($title?$title:$url).'</a> - '.$disctype.'<br />'); |
|
$totaldiscussions++; |
|
} else { |
|
$r->print(' .'); |
|
} |
|
} |
|
unless ($totaldiscussions) { |
|
$r->print('<p>'.&mt('No matches found in postings').'.</p>'); |
|
} |
|
} |
|
|
|
# =================================================== Done going through course |
|
$r->print(&Apache::loncommon::end_page()); |
|
} |
|
|
# ------------------------------------------------ First, check out environment |
# =============================== This pulls up a resource and its dependencies |
$metadatafields{'owner'}=$ENV{'user.name'}.'@'.$ENV{'user.domain'}; |
|
|
|
# --------------------------------- Compute various listings of metadata values |
sub checkonthis { |
|
my ($r,$id,$url,$level,$title,$fulltext,$symb,@allwords)=@_; |
|
$alreadyseen{$id}=1; |
|
if (&Apache::loncommon::connection_aborted($r)) { return; } |
|
$r->rflush(); |
|
|
%language=(); |
my $result=$title.' '; |
$language{'any'}='Any language'; |
if ($env{'request.role.adv'} || !$hash{'encrypted_'.$id}) { |
{ |
$result.=&Apache::lonnet::metadata($url,'title').' '. |
my $fh=Apache::File->new($r->dir_config('lonTabDir').'/language.tab'); |
&Apache::lonnet::metadata($url,'subject').' '. |
map { |
&Apache::lonnet::metadata($url,'abstract').' '. |
$_=~/(\w+)\s+([\w\s\-]+)/; chomp; |
&Apache::lonnet::metadata($url,'keywords'); |
$language{$1}=$2; |
} |
} <$fh>; |
my ($extension)=($url=~/\.(\w+)$/); |
|
if (&Apache::loncommon::fileembstyle($extension) eq 'ssi' && |
|
($url) && ($fulltext)) { |
|
$result.=&Apache::lonnet::ssi_body($url.'?symb='.&escape($symb)); |
|
} |
|
$result=~s/\s+/ /gs; |
|
my $applies = 0; |
|
$applies = &checkwords($result,$applies,@allwords); |
|
# Does this resource apply? |
|
if ($applies) { |
|
$r->print('<br />'); |
|
for (my $i=0;$i<=$level*5;$i++) { |
|
$r->print(' '); |
|
} |
|
my $href=$url; |
|
if ($hash{'encrypted_'.$id} && !$env{'request.role.adv'}) { |
|
$href=&Apache::lonenc::encrypted($href) |
|
.'?symb='.&Apache::lonenc::encrypted($symb); |
|
} else { |
|
$href.='?symb='.&escape($symb); |
|
} |
|
$r->print('<a href="'.$href.'" target="cat">'.($title?$title:$url). |
|
'</a><br />'); |
|
$totalfound++; |
|
} elsif ($fulltext) { |
|
$r->print(' .'); |
|
} |
|
$r->rflush(); |
|
# Check also the dependencies of this one |
|
my $dependencies= |
|
&Apache::lonnet::metadata($url,'dependencies'); |
|
foreach (split(/\,/,$dependencies)) { |
|
if (($_=~/^\/res\//) && (!$alreadyseen{$id})) { |
|
&checkonthis($r,$id,$_,$level+1,'',$fulltext,undef,@allwords); |
|
} |
} |
} |
|
} |
|
|
%cprtag=(); |
sub checkwords { |
$cprtag{'any'}='Any copyright/distribution'; |
my ($result,$applies,@allwords) = @_; |
{ |
foreach (@allwords) { |
my $fh=Apache::File->new($r->dir_config('lonIncludes').'/copyright.tab'); |
if ($_=~/\w/) { |
map { |
if ($result=~/$_/si) { |
$_=~/(\w+)\s+([\w\s\-]+)/; chomp; |
$applies++; |
$cprtag{$1}=$2; |
} |
} <$fh>; |
} |
} |
} |
|
return $applies; |
|
} |
|
|
%mimetag=(); |
sub untiehash { |
$mimetag{'any'}='Any type'; |
if (tied(%hash)) { |
{ |
untie(%hash); |
my $fh=Apache::File->new($r->dir_config('lonTabDir').'/filetypes.tab'); |
|
map { |
|
$_=~/(\w+)\s+(\w+)\s+([\w\s\-]+)/; chomp; |
|
$mimetag{$1}=".$1 $3"; |
|
} <$fh>; |
|
} |
} |
|
} |
|
|
|
} # End of course search scoping |
|
|
|
|
|
###################################################################### |
|
###################################################################### |
|
|
|
=pod |
|
|
if ($ENV{'form.basicsubmit'} eq 'SEARCH') { |
=item &print_basic_search_form() |
return &basicsearch($r,\%ENV); |
|
|
Prints the form for the basic search. Sorry the name is so cryptic. |
|
|
|
=cut |
|
|
|
###################################################################### |
|
###################################################################### |
|
sub print_basic_search_form { |
|
my ($r,$closebutton,$hidden_fields) = @_; |
|
my $result = ($env{'form.catalogmode'} ne 'import'); |
|
my $bread_crumb = |
|
&Apache::lonhtmlcommon::breadcrumbs('Searching','Search_Basic', |
|
$env{'form.catalogmode'} ne 'import'); |
|
my $scrout = &Apache::loncommon::start_page('Search').$bread_crumb; |
|
if (&Apache::lonnet::allowed('bre',$env{'request.role.domain'})) { |
|
# Define interface components |
|
my $userelatedwords= '<label>'. |
|
&mt('[_1] use related words', |
|
&Apache::lonhtmlcommon::checkbox |
|
('related',$env{'form.related'},'related')).'</label>'; |
|
my $onlysearchdomain='<label>'. |
|
&mt('[_1] only search domain [_2]', |
|
&Apache::lonhtmlcommon::checkbox('domains', |
|
$env{'form.domains'}, |
|
$r->dir_config('lonDefDomain') |
|
), |
|
$r->dir_config('lonDefDomain') |
|
).'</label>'; |
|
my $inclext= '<label>'. |
|
&mt('[_1] include external resources', |
|
&Apache::lonhtmlcommon::checkbox |
|
('inclext',$env{'form.inclext'})).'</label>'; |
|
my $adv_search_link = |
|
'<a href="/adm/searchcat?'. |
|
'phase=disp_adv&'. |
|
'catalogmode='.$env{'form.catalogmode'}. |
|
'&launch='.$env{'form.launch'}. |
|
'&mode='.$env{'form.mode'}. |
|
'">'.&mt('Advanced Search').'</a>'; |
|
# |
|
$scrout.='<form name="loncapa_search" method="post" '. |
|
'action="/adm/searchcat">'. |
|
'<input type="hidden" name="phase" value="basic_search" />'. |
|
$hidden_fields; |
|
# |
|
$scrout .= '<center>'.$/; |
|
if ($env{'request.course.id'}) { |
|
$scrout .= '<h1>'.&mt('LON-CAPA Catalog Search').'</h1>'; |
|
} else { |
|
# No need to tell them they are searching |
|
$scrout.= ('<br />'x2); |
|
} |
|
$scrout.='<table>'. |
|
'<tr><td align="center" valign="top">'. |
|
&Apache::lonhtmlcommon::textbox('basicexp', |
|
$env{'form.basicexp'},50). |
|
'<br />'. |
|
'<font size="-1">'.&searchhelp().'</font>'.'</td>'. |
|
'<td><font size="-1">'. |
|
'<nobr>'.(' 'x3).$adv_search_link.'</nobr>'.'<br />'. |
|
'<nobr>'.(' 'x1).$userelatedwords.'</nobr>'.'<br />'. |
|
'<nobr>'.(' 'x1).$onlysearchdomain.'</nobr>'.'<br />'. |
|
'<nobr>'.(' 'x1).$inclext.'</nobr>'.'<br />'. |
|
'</font></td>'. |
|
'</tr>'.$/; |
|
# |
|
$scrout .= '<tr><td align="center" colspan="2">'. |
|
'<font size="-1">'. |
|
'<input type="submit" name="basicsubmit" '. |
|
'value="'.&mt('Search').'" />'. |
|
(' 'x2).$closebutton.(' 'x2). |
|
&viewoptions(). |
|
'</font>'. |
|
'</td></tr>'.$/; |
|
$scrout .= '</table>'.$/.'</center>'.'</form>'; |
|
} |
|
if ($env{'request.course.id'}) { |
|
my %lt=&Apache::lonlocal::texthash('srch' => 'Search', |
|
'header' => 'Course Search', |
|
'note' => 'Enter terms or phrases, then press "Search" below', |
|
'use' => 'use related words', |
|
'full' =>'fulltext search (time consuming)', |
|
'disc' => 'search discussion postings (resources and bulletin boards)', |
|
); |
|
$scrout.=(<<ENDCOURSESEARCH); |
|
<form name="loncapa_search" method="post" action="/adm/searchcat"> |
|
<center> |
|
<hr /> |
|
<h1>$lt{'header'}</h1> |
|
<input type="hidden" name="phase" value="course_search" /> |
|
$hidden_fields |
|
<p> |
|
$lt{'note'}. |
|
</p> |
|
<p> |
|
<table> |
|
<tr><td> |
|
ENDCOURSESEARCH |
|
$scrout.=' '. |
|
&Apache::lonhtmlcommon::textbox('courseexp', |
|
$env{'form.courseexp'},40); |
|
my $crscheckbox = |
|
&Apache::lonhtmlcommon::checkbox('crsfulltext', |
|
$env{'form.crsfulltext'}); |
|
my $relcheckbox = |
|
&Apache::lonhtmlcommon::checkbox('crsrelated', |
|
$env{'form.crsrelated'}); |
|
my $discheckbox = |
|
&Apache::lonhtmlcommon::checkbox('crsdiscuss', |
|
$env{'form.crsrelated'}); |
|
$scrout.=(<<ENDENDCOURSE); |
|
</td></tr> |
|
<tr><td><label>$relcheckbox $lt{'use'}</label></td><td></td></tr> |
|
<tr><td><label>$crscheckbox $lt{'full'}</label></td><td></td></tr> |
|
<tr><td><label>$discheckbox $lt{'disc'}</label></td><td></td></tr> |
|
</table><p> |
|
<input type="submit" name="coursesubmit" value='$lt{'srch'}' /> |
|
</p> |
|
</center> |
|
</form> |
|
ENDENDCOURSE |
} |
} |
elsif ($ENV{'form.advancedsubmit'} eq 'SEARCH') { |
$scrout .= &Apache::loncommon::end_page(); |
return &advancedsearch($r,\%ENV); |
$r->print($scrout); |
|
return; |
|
} |
|
###################################################################### |
|
###################################################################### |
|
|
|
=pod |
|
|
|
=item &advanced_search_form() |
|
|
|
Prints the advanced search form. |
|
|
|
=cut |
|
|
|
###################################################################### |
|
###################################################################### |
|
sub print_advanced_search_form{ |
|
my ($r,$closebutton,$hidden_fields) = @_; |
|
my $bread_crumb = |
|
&Apache::lonhtmlcommon::breadcrumbs('Searching','Search_Advanced', |
|
$env{'form.catalogmode'} ne 'import'); |
|
my %lt=&Apache::lonlocal::texthash('srch' => 'Search', |
|
'reset' => 'Reset', |
|
'help' => 'Help'); |
|
my $advanced_buttons=<<"END"; |
|
<input type="submit" name="advancedsubmit" value='$lt{"srch"}' /> |
|
<input type="reset" name="reset" value='$lt{"reset"}' /> |
|
$closebutton |
|
END |
|
my $scrout= &Apache::loncommon::start_page('Advanced Catalog Search'); |
|
$scrout .= <<"ENDHEADER"; |
|
$bread_crumb |
|
<form method="post" action="/adm/searchcat" name="advsearch"> |
|
<p> |
|
$advanced_buttons |
|
ENDHEADER |
|
$scrout.=(' 'x2).&viewoptions().'</p>'.$hidden_fields. |
|
'<input type="hidden" name="phase" value="adv_search" />'; |
|
my %fields=&Apache::lonmeta::fieldnames(); |
|
# |
|
$scrout .= '<h3>'.&mt('Standard Metadata').'</h3>'; |
|
$scrout .= "<table>\n"; |
|
$scrout .= '<tr><td> </td><td colspan="2"><font size="-1">'. |
|
(' 'x2).&searchhelp()."</font></td></tr>\n"; |
|
my %related_word_search = |
|
('title' => 1, |
|
'author' => 0, |
|
'owner' => 0, |
|
'authorspace' => 0, |
|
'modifyinguser'=> 0, |
|
'keywords' => 1, |
|
'notes' => 1, |
|
'abstract' => 1, |
|
'standards'=> 1, |
|
'mime' => 1, |
|
'subject' => 1, |
|
); |
|
# |
|
foreach my $field ('title','author','subject','owner','authorspace', |
|
'modifyinguser','keywords','notes','abstract', |
|
'standards','mime') { |
|
$scrout.='<tr><td align="right">'.&titlefield($fields{$field}).'</td><td>'. |
|
&Apache::lonmeta::prettyinput($field, |
|
$env{'form.'.$field}, |
|
$field, |
|
'advsearch', |
|
$related_word_search{$field}, |
|
'</td><td align="left">', |
|
$env{'form.'.$field.'_related'}, |
|
50); |
|
if ($related_word_search{$field}) { |
|
$scrout .= 'related words'; |
|
} else { |
|
$scrout .= '</td><td> '; |
|
} |
|
$scrout .= '</td></tr>'.$/; |
} |
} |
|
foreach my $field ('lowestgradelevel','highestgradelevel') { |
|
$scrout.='<tr>'. |
|
'<td align="right">'.&titlefield($fields{$field}).'</td>'. |
|
'<td colspan="2">'. |
|
&Apache::lonmeta::prettyinput($field, |
|
$env{'form.'.$field}, |
|
$field, |
|
'advsearch', |
|
0). |
|
'</td></tr>'.$/; |
|
} |
|
$scrout.='<tr><td align="right">'. |
|
&titlefield(&mt('MIME Type Category')).'</td><td colspan="2">'. |
|
&Apache::loncommon::filecategoryselect('category', |
|
$env{'form.category'}). |
|
'</td></tr>'.$/; |
|
$scrout.='<tr><td align="right" valign="top">'. |
|
&titlefield(&mt('Domains')).'</td><td colspan="2">'. |
|
&Apache::loncommon::domain_select('domains', |
|
$env{'form.domains'},1). |
|
'<br /><label>'. |
|
&mt('[_1] include external resources', |
|
&Apache::lonhtmlcommon::checkbox |
|
('inclext',$env{'form.inclext'})).'</label></td></tr>'.$/; |
|
# |
|
# Misc metadata |
|
$scrout.='<tr><td align="right" valign="top">'. |
|
&titlefield(&mt('Copyright/Distribution')).'</td><td colspan="2">'. |
|
&Apache::lonmeta::selectbox('copyright', |
|
$env{'form.copyright'}, |
|
\&Apache::loncommon::copyrightdescription, |
|
( undef, |
|
&Apache::loncommon::copyrightids) |
|
).'</td></tr>'.$/; |
|
$scrout.='<tr><td align="right" valign="top">'. |
|
&titlefield(&mt('Language')).'</td><td colspan="2">'. |
|
&Apache::lonmeta::selectbox('language', |
|
$env{'form.language'}, |
|
\&Apache::loncommon::languagedescription, |
|
('any',&Apache::loncommon::languageids) |
|
).'</td></tr>'; |
|
$scrout .= "</table>\n"; |
|
# |
|
# Dynamic metadata |
|
$scrout .= '<h3>'.&mt('Problem Statistics').'</h3>'; |
|
$scrout .= "<table>\n"; |
|
$scrout .= '<tr><td> </td><td align="center">'.&mt('Minimum').'</td>'. |
|
'<td align="center">'.&mt('Maximum').'</td></tr>'."\n"; |
|
foreach my $statistic |
|
({ name=>'count', |
|
description=>'Network-wide number of accesses (hits)',}, |
|
{ name=>'stdno', |
|
description=> |
|
'Total number of students who have worked on this problem',}, |
|
{ name => 'avetries', |
|
description=>'Average number of tries till solved',}, |
|
{ name => 'difficulty', |
|
description=>'Degree of difficulty',}, |
|
{ name => 'disc', |
|
description=>'Degree of discrimination'}) { |
|
$scrout .= '<tr><td align="right">'. |
|
&titlefield(&mt($statistic->{'description'})). |
|
'</td><td align="center">'. |
|
'<input type="text" name="'.$statistic->{'name'}.'_min" '. |
|
'value="" size="6" />'. |
|
'</td><td align="center">'. |
|
'<input type="text" name="'.$statistic->{'name'}.'_max" '. |
|
'value="" size="6" />'. |
|
'</td></tr>'.$/; |
|
} |
|
$scrout .= "</table>\n"; |
|
$scrout .= '<h3>'.&mt('Evaluation Data').'</h3>'; |
|
$scrout .= "<table>\n"; |
|
$scrout .= '<tr><td> </td><td align="center">'.&mt('Minimum').'</td>'. |
|
'<td align="center">'.&mt('Maximum').'</td></tr>'."\n"; |
|
foreach my $evaluation |
|
( { name => 'clear', |
|
description => 'Material presented in clear way'}, |
|
{ name =>'depth', |
|
description => 'Material covered with sufficient depth'}, |
|
{ name => 'helpful', |
|
description => 'Material is helpful'}, |
|
{ name => 'correct', |
|
description => 'Material appears to be correct'}, |
|
{ name => 'technical', |
|
description => 'Resource is technically correct'}){ |
|
$scrout .= '<tr><td align="right">'. |
|
&titlefield(&mt($evaluation->{'description'})). |
|
'</td><td align="center">'. |
|
'<input type="text" name="'.$evaluation->{'name'}.'_min" '. |
|
'value="" size="6" />'. |
|
'</td><td align="center">'. |
|
'<input type="text" name="'.$evaluation->{'name'}.'_max" '. |
|
'value="" size="6" />'. |
|
'</td></tr>'.$/; |
|
} |
|
$scrout .= "</table>\n"; |
|
# |
|
# Creation/Modification date limits |
|
$scrout .= '<h3>'.&mt('Creation and Modification dates').'</h3>'; |
|
$scrout .= "\n<table>\n"; |
|
my $cafter = |
|
&Apache::lonhtmlcommon::date_setter('advsearch', # formname |
|
'creationdate1', # fieldname |
|
0, # current value |
|
'', # special |
|
1, # includeempty |
|
'', # state |
|
1, # no_hh_mm_ss |
|
); |
|
my $cbefore = |
|
&Apache::lonhtmlcommon::date_setter('advsearch', # formname |
|
'creationdate2', # fieldname |
|
0, # current value |
|
'', # special |
|
1, # includeempty |
|
'', # state |
|
1, # no_hh_mm_ss |
|
); |
|
$scrout .= &mt('<tr><td align="right">Created between</td>'. |
|
'<td>[_1]</td></tr>'. |
|
'<tr><td align="right">and </td>'. |
|
'<td>[_2]</td></tr>',$cafter,$cbefore); |
|
my $lafter = |
|
&Apache::lonhtmlcommon::date_setter('advsearch', |
|
'revisiondate1', |
|
0, # current value |
|
'', # special |
|
1, # includeempty |
|
'', # state |
|
1, # no_hh_mm_ss |
|
); |
|
my $lbefore = |
|
&Apache::lonhtmlcommon::date_setter('advsearch', |
|
'revisiondate2', |
|
0, # current value |
|
'', # special |
|
1, # includeempty |
|
'', # state |
|
1, # no_hh_mm_ss |
|
); |
|
$scrout .= &mt('<tr><td align="right">Last modified between </td>'. |
|
'<td>[_1]</td></tr>'. |
|
'<tr><td align="right">and</td>'. |
|
'<td>[_2]</td></tr>',$lafter,$lbefore); |
|
$scrout.="</table>\n"; |
|
$scrout.=<<ENDDOCUMENT; |
|
$advanced_buttons |
|
</form> |
|
ENDDOCUMENT |
|
$scrout .= &Apache::loncommon::end_page(); |
|
$r->print($scrout); |
|
return; |
|
} |
|
|
$scrout=''; # building a part of screen output |
###################################################################### |
$scrout.=&searchphrasefield('Limit by title','title', |
###################################################################### |
$ENV{'form.title'}); |
|
|
|
$scrout.=&searchphrasefield('Limit by author','author', |
=pod |
$ENV{'form.author'}); |
|
|
|
$scrout.=&searchphrasefield('Limit by subject','subject', |
=item &titlefield() |
$ENV{'form.subject'}); |
|
|
|
$scrout.=&searchphrasefield('Limit by keywords','keywords', |
Inputs: title text |
$ENV{'form.keywords'}); |
|
|
|
$scrout.=&searchphrasefield('Limit by URL','url', |
Outputs: titletext with font wrapper |
$ENV{'form.url'}); |
|
|
|
$scrout.=&searchphrasefield('Limit by version','version', |
=cut |
$ENV{'form.version'}); |
|
|
|
$scrout.=&searchphrasefield('Limit by notes','notes', |
###################################################################### |
$ENV{'form.notes'}); |
###################################################################### |
|
sub titlefield { |
|
my $title=shift; |
|
return $title; |
|
} |
|
|
$scrout.=&searchphrasefield('Limit by abstract','abstract', |
###################################################################### |
$ENV{'form.abstract'}); |
###################################################################### |
|
|
$ENV{'form.mime'}='notxxx' unless length($ENV{'form.mime'}); |
=pod |
$scrout.=&selectbox('Limit by MIME type','mime', |
|
$ENV{'form.mime'},%mimetag); |
|
|
|
$ENV{'form.language'}='any' unless length($ENV{'form.language'}); |
=item viewoptiontext() |
|
|
$scrout.=&selectbox('Limit by language','language', |
Inputs: codename for view option |
$ENV{'form.language'},%language); |
|
|
|
|
|
# ------------------------------------------------ Compute date selection boxes |
Outputs: displayed text |
$scrout.=<<CREATIONDATESTART; |
|
<p> |
=cut |
<font color="#800000" face="helvetica"><b>LIMIT BY CREATION DATE RANGE:</b> |
|
</font> |
###################################################################### |
<br> |
###################################################################### |
between: |
sub viewoptiontext { |
CREATIONDATESTART |
my $code=shift; |
$scrout.=&dateboxes('creationdatestart',1,1,1976, |
my %desc=&Apache::lonlocal::texthash |
$ENV{'form.creationdatestart_month'}, |
('detailed' => "Detailed Citation View", |
$ENV{'form.creationdatestart_day'}, |
'xml' => 'XML/SGML', |
$ENV{'form.creationdatestart_year'}, |
'compact' => 'Compact View', |
); |
'fielded' => 'Fielded Format', |
$scrout.=<<CREATIONDATEEND; |
'summary' => 'Summary View', |
and: |
'summarypreview' => 'Summary Preview', |
CREATIONDATEEND |
'detailedpreview' => 'Detailed Citation Preview'); |
$scrout.=&dateboxes('creationdateend',12,31,2051, |
return $desc{$code}; |
$ENV{'form.creationdateend_month'}, |
} |
$ENV{'form.creationdateend_day'}, |
|
$ENV{'form.creationdateend_year'}, |
|
); |
|
$scrout.="</p>"; |
|
|
|
$scrout.=<<LASTREVISIONDATESTART; |
###################################################################### |
<p> |
###################################################################### |
<font color="#800000" face="helvetica"><b>LIMIT BY LAST REVISION DATE RANGE: |
|
</b></font> |
|
<br>between: |
|
LASTREVISIONDATESTART |
|
$scrout.=&dateboxes('lastrevisiondatestart',1,1,1976, |
|
$ENV{'form.lastrevisiondatestart_month'}, |
|
$ENV{'form.lastrevisiondatestart_day'}, |
|
$ENV{'form.lastrevisiondatestart_year'}, |
|
); |
|
$scrout.=<<LASTREVISIONDATEEND; |
|
and: |
|
LASTREVISIONDATEEND |
|
$scrout.=&dateboxes('lastrevisiondateend',12,31,2051, |
|
$ENV{'form.lastrevisiondateend_month'}, |
|
$ENV{'form.lastrevisiondateend_day'}, |
|
$ENV{'form.lastrevisiondateend_year'}, |
|
); |
|
$scrout.='</p>'; |
|
|
|
$scrout.=&searchphrasefield('Limit by publisher/owner','owner', |
|
$ENV{'form.owner'}); |
|
# $metadatafields{'owner'}); |
|
|
|
$ENV{'form.copyright'}='any' unless length($ENV{'form.copyright'}); |
|
$scrout.=&selectbox('Limit by copyright/distribution','copyright', |
|
$ENV{'form.copyright'},%cprtag); |
|
|
|
# ------------------------------------------- Compute customized metadata field |
=pod |
$scrout.=<<CUSTOMMETADATA; |
|
<p> |
|
<font color="#800000" face="helvetica"><b>LIMIT BY OTHER METADATA FIELDS:</b> |
|
</font> |
|
For author-specific metadata, enter in an expression in the form of |
|
<i>key</i>=<i>value</i> separated by operators such as AND or OR.<br> |
|
<b>Example:</b> grandmother=75 OR grandfather=85 |
|
<br> |
|
CUSTOMMETADATA |
|
$scrout.=&simpletextfield('custommetadata',$ENV{'form.custommetadata'}); |
|
$scrout.=' <i>initial users of this system do not need to worry about this option</i>'; |
|
|
|
# ---------------------------------------------------------------- Print screen |
|
$r->print(<<ENDDOCUMENT); |
|
<html> |
|
<head> |
|
<title>The LearningOnline Network with CAPA</title> |
|
</head> |
|
<body bgcolor="#FFFFFF"> |
|
<img align=right src=/adm/lonIcons/lonlogos.gif> |
|
<h1>Search Catalog</h1> |
|
<form method="post" action="/adm/searchcat"> |
|
$hidden |
|
<hr> |
|
<h3>Basic Search</h3> |
|
<p> |
|
Enter terms or phrases separated by search operators |
|
such as AND or OR then press SEARCH below. Terms should be specific |
|
to the title, author, subject, notes, or abstract information associated |
|
with a resource. |
|
<br> |
|
ENDDOCUMENT |
|
$r->print(&simpletextfield('basicexp',$ENV{'form.basicexp'})); |
|
$r->print(' '); |
|
$r->print(&simplecheckbox('titleonly',$ENV{'form.titleonly'})); |
|
$r->print('<font color="#800000">Title only</font> '); |
|
$r->print(&simplecheckbox('allversions',$ENV{'form.allversions'})); |
|
$r->print(<<ENDDOCUMENT); |
|
<font color="#800000">Search historic archives</font> |
|
<br> |
|
<input type="submit" name="basicsubmit" value='SEARCH' /> |
|
<input type="reset" name="reset" value='RESET' /> |
|
$closebutton |
|
$basicviewselect |
|
</p> |
|
<hr> |
|
<h3>Advanced Search</h3> |
|
$scrout |
|
<p> |
|
<input type="submit" name="advancedsubmit" value='SEARCH' /> |
|
<input type="reset" name="reset" value='RESET' /> |
|
$closebutton |
|
$advancedviewselect |
|
</p> |
|
</form> |
|
</body> |
|
</html> |
|
ENDDOCUMENT |
|
return OK; |
|
} |
|
|
|
# --------------------------------------------------------- Various form fields |
=item viewoptions() |
|
|
sub simpletextfield { |
Inputs: none |
my ($name,$value)=@_; |
|
return '<input type=text name=\''.$name. |
Outputs: text for box with view options |
'\' size=20 value=\''.$value.'\' />'; |
|
} |
=cut |
|
|
sub simplecheckbox { |
###################################################################### |
my ($name,$value)=@_; |
###################################################################### |
my $checked=''; |
sub viewoptions { |
$checked="CHECKED" if $value eq 'on'; |
my $scrout; |
return '<input type=checkbox name=\''.$name.'\' '. $checked . '>'; |
if (! defined($env{'form.viewselect'})) { |
} |
$env{'form.viewselect'}='detailed'; |
|
} |
sub searchphrasefield { |
$scrout.=&Apache::lonmeta::selectbox('viewselect', |
my ($title,$name,$value)=@_; |
$env{'form.viewselect'}, |
my $instruction=<<END; |
\&viewoptiontext, |
Enter terms or phrases separated by search operators such |
sort(keys(%Views))); |
as AND or OR. |
$scrout.= ' '; |
END |
my $countselect = &Apache::lonmeta::selectbox('show', |
my $uctitle=uc($title); |
$env{'form.show'}, |
return "\n<p><font color=\"#800000\" face=\"helvetica\"><b>$uctitle:</b>". |
undef, |
"</FONT> $instruction<br>". |
(10,20,50,100,1000,10000)); |
'<input type=text name="'.$name.'" size=80 value=\''.$value.'\'>'; |
$scrout .= (' 'x2).&mt('[_1] Records per Page',$countselect). |
} |
'</nobr>'.$/; |
|
return $scrout; |
sub dateboxes { |
} |
my ($name,$defaultmonth,$defaultday,$defaultyear, |
|
$currentmonth,$currentday,$currentyear)=@_; |
###################################################################### |
($defaultmonth,$defaultday,$defaultyear)=('','',''); |
###################################################################### |
my $month=<<END; |
|
<select name="${name}_month"> |
=pod |
<option value='$defaultmonth'> </option> |
|
<option value="1">January</option> |
=item searchhelp() |
<option value="2">February</option> |
|
<option value="3">March</option> |
Inputs: none |
<option value="4">April</option> |
|
<option value="5">May</option> |
Outputs: return little blurb on how to enter searches |
<option value="6">June</option> |
|
<option value="7">July</option> |
=cut |
<option value="8">August</option> |
|
<option value="9">September</option> |
###################################################################### |
<option value="10">October</option> |
###################################################################### |
<option value="11">November</option> |
sub searchhelp { |
<option value="12">December</option> |
return &mt('Enter words and quoted phrases'); |
</select> |
} |
END |
|
$month=~s/(\"$currentmonth\")/$1 SELECTED/ if length($currentmonth); |
###################################################################### |
my $day=<<END; |
###################################################################### |
<select name="${name}_day"> |
|
<option value='$defaultday'> </option> |
=pod |
<option value="1">1</option> |
|
<option value="2">2</option> |
=item &get_persistent_form_data() |
<option value="3">3</option> |
|
<option value="4">4</option> |
Inputs: filename of database |
<option value="5">5</option> |
|
<option value="6">6</option> |
Outputs: returns undef on database errors. |
<option value="7">7</option> |
|
<option value="8">8</option> |
This function is the reverse of &make_persistent() for form data. |
<option value="9">9</option> |
Retrieve persistent data from %persistent_db. Retrieved items will have their |
<option value="10">10</option> |
values unescaped. If a form value already exists in $env, it will not be |
<option value="11">11</option> |
overwritten. Form values that are array references may have values appended |
<option value="12">12</option> |
to them. |
<option value="13">13</option> |
|
<option value="14">14</option> |
=cut |
<option value="15">15</option> |
|
<option value="16">16</option> |
###################################################################### |
<option value="17">17</option> |
###################################################################### |
<option value="18">18</option> |
sub get_persistent_form_data { |
<option value="19">19</option> |
my $filename = shift; |
<option value="20">20</option> |
return 0 if (! -e $filename); |
<option value="21">21</option> |
return undef if (! tie(%persistent_db,'GDBM_File',$filename, |
<option value="22">22</option> |
&GDBM_READER(),0640)); |
<option value="23">23</option> |
# |
<option value="24">24</option> |
# These make sure we do not get array references printed out as 'values'. |
<option value="25">25</option> |
my %arrays_allowed = ('form.domains'=>1); |
<option value="26">26</option> |
# |
<option value="27">27</option> |
# Loop through the keys, looking for 'form.' |
<option value="28">28</option> |
foreach my $name (keys(%persistent_db)) { |
<option value="29">29</option> |
next if ($name !~ /^form./); |
<option value="30">30</option> |
# Kludgification begins! |
<option value="31">31</option> |
if ($name eq 'form.domains' && |
</select> |
$env{'form.searchmode'} eq 'basic' && |
END |
$env{'form.phase'} ne 'disp_basic') { |
$day=~s/(\"$currentday\")/$1 SELECTED/ if length($currentday); |
next; |
my $year=<<END; |
} |
<select name="${name}_year"> |
# End kludge (hopefully) |
<option value='$defaultyear'> </option> |
next if (exists($env{$name})); |
<option value="1976">1976</option> |
my @values = map { |
<option value="1977">1977</option> |
&unescape($_); |
<option value="1978">1978</option> |
} split(',',$persistent_db{$name}); |
<option value="1979">1979</option> |
next if (@values <1); |
<option value="1980">1980</option> |
if ($arrays_allowed{$name}) { |
<option value="1981">1981</option> |
$env{$name} = [@values]; |
<option value="1982">1982</option> |
} else { |
<option value="1983">1983</option> |
$env{$name} = $values[0] if ($values[0]); |
<option value="1984">1984</option> |
} |
<option value="1985">1985</option> |
} |
<option value="1986">1986</option> |
untie (%persistent_db); |
<option value="1987">1987</option> |
return 1; |
<option value="1988">1988</option> |
|
<option value="1989">1989</option> |
|
<option value="1990">1990</option> |
|
<option value="1991">1991</option> |
|
<option value="1992">1992</option> |
|
<option value="1993">1993</option> |
|
<option value="1994">1994</option> |
|
<option value="1995">1995</option> |
|
<option value="1996">1996</option> |
|
<option value="1997">1997</option> |
|
<option value="1998">1998</option> |
|
<option value="1999">1999</option> |
|
<option value="2000">2000</option> |
|
<option value="2001">2001</option> |
|
<option value="2002">2002</option> |
|
<option value="2003">2003</option> |
|
<option value="2004">2004</option> |
|
<option value="2005">2005</option> |
|
<option value="2006">2006</option> |
|
<option value="2007">2007</option> |
|
<option value="2008">2008</option> |
|
<option value="2009">2009</option> |
|
<option value="2010">2010</option> |
|
<option value="2011">2011</option> |
|
<option value="2012">2012</option> |
|
<option value="2013">2013</option> |
|
<option value="2014">2014</option> |
|
<option value="2015">2015</option> |
|
<option value="2016">2016</option> |
|
<option value="2017">2017</option> |
|
<option value="2018">2018</option> |
|
<option value="2019">2019</option> |
|
<option value="2020">2020</option> |
|
<option value="2021">2021</option> |
|
<option value="2022">2022</option> |
|
<option value="2023">2023</option> |
|
<option value="2024">2024</option> |
|
<option value="2025">2025</option> |
|
<option value="2026">2026</option> |
|
<option value="2027">2027</option> |
|
<option value="2028">2028</option> |
|
<option value="2029">2029</option> |
|
<option value="2030">2030</option> |
|
<option value="2031">2031</option> |
|
<option value="2032">2032</option> |
|
<option value="2033">2033</option> |
|
<option value="2034">2034</option> |
|
<option value="2035">2035</option> |
|
<option value="2036">2036</option> |
|
<option value="2037">2037</option> |
|
<option value="2038">2038</option> |
|
<option value="2039">2039</option> |
|
<option value="2040">2040</option> |
|
<option value="2041">2041</option> |
|
<option value="2042">2042</option> |
|
<option value="2043">2043</option> |
|
<option value="2044">2044</option> |
|
<option value="2045">2045</option> |
|
<option value="2046">2046</option> |
|
<option value="2047">2047</option> |
|
<option value="2048">2048</option> |
|
<option value="2049">2049</option> |
|
<option value="2050">2050</option> |
|
<option value="2051">2051</option> |
|
</select> |
|
END |
|
$year=~s/(\"$currentyear\")/$1 SELECTED/ if length($currentyear); |
|
return "$month$day$year"; |
|
} |
} |
|
|
sub selectbox { |
###################################################################### |
my ($title,$name,$value,%options)=@_; |
###################################################################### |
my $uctitle=uc($title); |
|
my $selout="\n<p><font color=\"#800000\" face=\"helvetica\"><b>$uctitle:". |
=pod |
"</b></font><br>".'<select name="'.$name.'">'; |
|
map { |
=item &get_persistent_data() |
$selout.='<option value=\''.$_.'\''; |
|
if ($_ eq $value) { $selout.=' selected'; } |
Inputs: filename of database, ref to array of values to recover. |
$selout.='>'.$options{$_}.'</option>'; |
|
} sort keys %options; |
Outputs: array of values. Returns undef on error. |
return $selout.'</select>'; |
|
} |
This function is the reverse of &make_persistent(); |
|
Retrieve persistent data from %persistent_db. Retrieved items will have their |
# ----------------------------------------------- Performing an advanced search |
values unescaped. If the item contains commas (before unescaping), the |
sub advancedsearch { |
returned value will be an array pointer. |
my ($r,$envhash)=@_; |
|
my %ENV=%{$envhash}; |
=cut |
|
|
|
###################################################################### |
|
###################################################################### |
|
sub get_persistent_data { |
|
my $filename = shift; |
|
my @Vars = @{shift()}; |
|
my @Values; # Return array |
|
return undef if (! -e $filename); |
|
return undef if (! tie(%persistent_db,'GDBM_File',$filename, |
|
&GDBM_READER(),0640)); |
|
foreach my $name (@Vars) { |
|
if (! exists($persistent_db{$name})) { |
|
push @Values, undef; |
|
next; |
|
} |
|
my @values = map { |
|
&unescape($_); |
|
} split(',',$persistent_db{$name}); |
|
if (@values <= 1) { |
|
push @Values,$values[0]; |
|
} else { |
|
push @Values,\@values; |
|
} |
|
} |
|
untie (%persistent_db); |
|
return @Values; |
|
} |
|
|
|
###################################################################### |
|
###################################################################### |
|
|
|
=pod |
|
|
|
=item &make_persistent() |
|
|
|
Inputs: Hash of values to save, filename of persistent database. |
|
|
|
Store variables away to the %persistent_db. |
|
Values will be escaped. Values that are array pointers will have their |
|
elements escaped and concatenated in a comma separated string. |
|
|
|
=cut |
|
|
|
###################################################################### |
|
###################################################################### |
|
sub make_persistent { |
|
my %save = %{shift()}; |
|
my $filename = shift; |
|
return undef if (! tie(%persistent_db,'GDBM_File', |
|
$filename,&GDBM_WRCREAT(),0640)); |
|
foreach my $name (keys(%save)) { |
|
my @values = (ref($save{$name}) ? @{$save{$name}} : ($save{$name})); |
|
# We handle array references, but not recursively. |
|
my $store = join(',', map { &escape($_); } @values ); |
|
$persistent_db{$name} = $store; |
|
} |
|
untie(%persistent_db); |
|
return 1; |
|
} |
|
|
|
###################################################################### |
|
###################################################################### |
|
|
|
=pod |
|
|
|
=item &make_form_data_persistent() |
|
|
|
Inputs: filename of persistent database. |
|
|
|
Store most form variables away to the %persistent_db. |
|
Values will be escaped. Values that are array pointers will have their |
|
elements escaped and concatenated in a comma separated string. |
|
|
|
=cut |
|
|
|
###################################################################### |
|
###################################################################### |
|
sub make_form_data_persistent { |
|
my $r = shift; |
|
my $filename = shift; |
|
my %save; |
|
foreach (keys(%env)) { |
|
next if (!/^form/ || /submit/); |
|
$save{$_} = $env{$_}; |
|
} |
|
return &make_persistent(\%save,$filename); |
|
} |
|
|
|
###################################################################### |
|
###################################################################### |
|
|
|
=pod |
|
|
|
=item &parse_advanced_search() |
|
|
|
Parse advanced search form and return the following: |
|
|
|
=over 4 |
|
|
|
=item $query Scalar containing an SQL query. |
|
|
|
=item $customquery Scalar containing a custom query. |
|
|
|
=item $customshow Scalar containing commands to show custom metadata. |
|
|
|
=item $libraries_to_query Reference to array of domains to search. |
|
|
|
=back |
|
|
|
=cut |
|
|
|
###################################################################### |
|
###################################################################### |
|
sub parse_advanced_search { |
|
my ($r,$closebutton,$hidden_fields)=@_; |
|
my @BasicFields = ('title','author','subject','keywords','url','version', |
|
'notes','abstract','extension','owner','authorspace', |
|
# 'custommetadata','customshow', |
|
'modifyinguser','standards','mime'); |
|
my @StatsFields = &statfields(); |
|
my @EvalFields = &evalfields(); |
my $fillflag=0; |
my $fillflag=0; |
|
my $pretty_search_string = ""; |
# Clean up fields for safety |
# Clean up fields for safety |
for my $field ('title','author','subject','keywords','url','version', |
for my $field (@BasicFields, |
'creationdatestart_month','creationdatestart_day', |
'creationdatestart_month','creationdatestart_day', |
'creationdatestart_year','creationdateend_month', |
'creationdatestart_year','creationdateend_month', |
'creationdateend_day','creationdateend_year', |
'creationdateend_day','creationdateend_year', |
'lastrevisiondatestart_month','lastrevisiondatestart_day', |
'lastrevisiondatestart_month','lastrevisiondatestart_day', |
'lastrevisiondatestart_year','lastrevisiondateend_month', |
'lastrevisiondatestart_year','lastrevisiondateend_month', |
'lastrevisiondateend_day','lastrevisiondateend_year', |
'lastrevisiondateend_day','lastrevisiondateend_year') { |
'notes','abstract','mime','language','owner', |
$env{'form.'.$field}=~s/[^\w\/\s\(\)\=\-\"\']//g; |
'custommetadata') { |
} |
$ENV{"form.$field"}=~s/[^\w\s\(\)\=\-\"\']//g; |
foreach ('mode','form','element') { |
} |
# is this required? Hmmm. |
for my $field ('title','author','subject','keywords','url','version', |
next if (! exists($env{'form.'.$_})); |
'notes','abstract','mime','language','owner', |
$env{'form.'.$_}=&unescape($env{'form.'.$_}); |
'custommetadata') { |
$env{'form.'.$_}=~s/[^\w\/\s\(\)\=\-\"\']//g; |
if (&filled($ENV{"form.$field"})) { |
} |
|
# Preprocess the category form element. |
|
$env{'form.category'} = 'any' if (! defined($env{'form.category'}) || |
|
ref($env{'form.category'})); |
|
# |
|
# Check to see if enough information was filled in |
|
foreach my $field (@BasicFields) { |
|
if (&filled($env{'form.'.$field})) { |
$fillflag++; |
$fillflag++; |
} |
} |
} |
} |
|
foreach my $field (@StatsFields,@EvalFields) { |
unless ($fillflag) { |
if (&filled($env{'form.'.$field.'_max'})) { |
&output_blank_field_error($r); |
$fillflag++; |
return OK; |
} |
|
if (&filled($env{'form.'.$field.'_min'})) { |
|
$fillflag++; |
|
} |
} |
} |
|
|
my $query=''; |
for my $field ('lowestgradelevel','highestgradelevel') { |
|
if ( $env{'form.'.$field} =~ /^\d+$/ && |
my @queries; |
$env{'form.'.$field} > 0) { |
# Go through logical expression AND/OR/NOT phrase fields. |
$fillflag++; |
|
} |
foreach my $field ('title','author','subject','notes','abstract','url', |
|
'keywords','version','owner') { |
|
if ($ENV{'form.'.$field}) { |
|
push @queries,&build_SQL_query($field,$ENV{'form.'.$field}); |
|
} |
|
} |
} |
if ($ENV{'form.language'} and $ENV{'form.language'} ne 'any') { |
if (! $fillflag) { |
push @queries,"(language like \"\%$ENV{'form.language'}\%\")"; |
&output_blank_field_error($r,$closebutton, |
|
'phase=disp_adv',$hidden_fields); |
|
return ; |
} |
} |
if ($ENV{'form.mime'} and $ENV{'form.mime'} ne 'any') { |
# Turn the form input into a SQL-based query |
push @queries,"(mime like \"\%$ENV{'form.mime'}\%\")"; |
my $query=''; |
|
my @queries; |
|
my $font = '<font color="#800000" face="helvetica">'; |
|
# Evaluate logical expression AND/OR/NOT phrase fields. |
|
foreach my $field (@BasicFields) { |
|
next if (!defined($env{'form.'.$field}) || $env{'form.'.$field} eq ''); |
|
my ($error,$SQLQuery) = |
|
&process_phrase_input($env{'form.'.$field}, |
|
$env{'form.'.$field.'_related'},$field); |
|
if (defined($error)) { |
|
&output_unparsed_phrase_error($r,$closebutton,'phase=disp_adv', |
|
$hidden_fields,$field); |
|
return; |
|
} else { |
|
$pretty_search_string .= |
|
$font.$field.'</font>: '.$env{'form.'.$field}; |
|
if ($env{'form.'.$field.'_related'}) { |
|
my @Words = |
|
&Apache::loncommon::get_related_words |
|
($env{'form.'.$field}); |
|
if (@Words) { |
|
$pretty_search_string.= ' with related words: '. |
|
join(', ',@Words[0..4]); |
|
} else { |
|
$pretty_search_string.= ' with related words.'; |
|
} |
|
} |
|
$pretty_search_string .= '<br />'; |
|
push (@queries,$SQLQuery); |
|
} |
} |
} |
if ($ENV{'form.copyright'} and $ENV{'form.copyright'} ne 'any') { |
# |
push @queries,"(copyright like \"\%$ENV{'form.copyright'}\%\")"; |
# Make the 'mime' from 'form.category' and 'form.extension' |
|
# |
|
my $searchphrase; |
|
if (exists($env{'form.category'}) && |
|
$env{'form.category'} !~ /^\s*$/ && |
|
$env{'form.category'} ne 'any') { |
|
my @extensions = &Apache::loncommon::filecategorytypes |
|
($env{'form.category'}); |
|
if (scalar(@extensions) > 0) { |
|
$searchphrase = join(' OR ',@extensions); |
|
} |
} |
} |
my $datequery=&build_date_queries( |
if (defined($searchphrase)) { |
$ENV{'form.creationdatestart_month'}, |
my ($error,$SQLsearch) = &process_phrase_input($searchphrase,0,'mime'); |
$ENV{'form.creationdatestart_day'}, |
push @queries,$SQLsearch; |
$ENV{'form.creationdatestart_year'}, |
$pretty_search_string .=$font.'mime</font> contains <b>'. |
$ENV{'form.creationdateend_month'}, |
$searchphrase.'</b><br />'; |
$ENV{'form.creationdateend_day'}, |
} |
$ENV{'form.creationdateend_year'}, |
# |
$ENV{'form.lastrevisiondatestart_month'}, |
# Evaluate option lists |
$ENV{'form.lastrevisiondatestart_day'}, |
if ($env{'form.lowestgradelevel'} && |
$ENV{'form.lastrevisiondatestart_year'}, |
$env{'form.lowestgradelevel'} ne '0' && |
$ENV{'form.lastrevisiondateend_month'}, |
$env{'form.lowestgradelevel'} =~ /^\d+$/) { |
$ENV{'form.lastrevisiondateend_day'}, |
push(@queries, |
$ENV{'form.lastrevisiondateend_year'}, |
'(lowestgradelevel>='.$env{'form.lowestgradelevel'}.')'); |
); |
$pretty_search_string.="lowestgradelevel>=". |
if ($datequery=~/^Incorrect/) { |
$env{'form.lowestgradelevel'}."<br />\n"; |
&output_date_error($r,$datequery); |
} |
return OK; |
if ($env{'form.highestgradelevel'} && |
|
$env{'form.highestgradelevel'} ne '0' && |
|
$env{'form.highestgradelevel'} =~ /^\d+$/) { |
|
push(@queries, |
|
'(highestgradelevel<='.$env{'form.highestgradelevel'}.')'); |
|
$pretty_search_string.="highestgradelevel<=". |
|
$env{'form.highestgradelevel'}."<br />\n"; |
|
} |
|
if ($env{'form.language'} and $env{'form.language'} ne 'any') { |
|
push @queries,"(language like \"$env{'form.language'}\")"; |
|
$pretty_search_string.=$font."language</font>= ". |
|
&Apache::loncommon::languagedescription($env{'form.language'}). |
|
"<br />\n"; |
|
} |
|
if ($env{'form.copyright'} and $env{'form.copyright'} ne 'any') { |
|
push @queries,"(copyright like \"$env{'form.copyright'}\")"; |
|
$pretty_search_string.=$font."copyright</font> = ". |
|
&Apache::loncommon::copyrightdescription($env{'form.copyright'}). |
|
"<br />\n"; |
|
} |
|
# |
|
# Statistics |
|
foreach my $field (@StatsFields,@EvalFields) { |
|
my ($min,$max); |
|
if (exists($env{'form.'.$field.'_min'}) && |
|
$env{'form.'.$field.'_min'} ne '') { |
|
$min = $env{'form.'.$field.'_min'}; |
|
} |
|
if (exists($env{'form.'.$field.'_max'}) && |
|
$env{'form.'.$field.'_max'} ne '') { |
|
$max = $env{'form.'.$field.'_max'}; |
|
} |
|
next if (! defined($max) && ! defined($min)); |
|
if (defined($min) && defined($max)) { |
|
($min,$max) = sort {$a <=>$b} ($min,$max); |
|
} |
|
if (defined($min) && $min =~ /^(\d+\.\d+|\d+|\.\d+)$/) { |
|
push(@queries,'('.$field.'>'.$min.')'); |
|
$pretty_search_string.=$font.$field.'</font>>'.$min.'<br />'; |
|
} |
|
if (defined($max) && $max =~ /^(\d+\.\d+|\d+|\.\d+)$/) { |
|
push(@queries,'('.$field.'<'.$max.')'); |
|
$pretty_search_string.=$font.$field.'</font><'.$max.'<br />'; |
|
} |
} |
} |
elsif ($datequery) { |
# |
|
# Evaluate date windows |
|
my $cafter = |
|
&Apache::lonhtmlcommon::get_date_from_form('creationdate1'); |
|
my $cbefore = |
|
&Apache::lonhtmlcommon::get_date_from_form('creationdate2'); |
|
if ($cafter > $cbefore) { |
|
my $tmp = $cafter; |
|
$cafter = $cbefore; |
|
$cbefore = $tmp; |
|
} |
|
my $mafter = |
|
&Apache::lonhtmlcommon::get_date_from_form('revisiondate1'); |
|
my $mbefore = |
|
&Apache::lonhtmlcommon::get_date_from_form('revisiondate2'); |
|
if ($mafter > $mbefore) { |
|
my $tmp = $mafter; |
|
$mafter = $mbefore; |
|
$mbefore = $tmp; |
|
} |
|
my ($datequery,$error,$prettydate)=&build_date_queries($cafter,$cbefore, |
|
$mafter,$mbefore); |
|
if (defined($error)) { |
|
&output_date_error($r,$error,$closebutton,$hidden_fields); |
|
} elsif (defined($datequery)) { |
|
# Here is where you would set up pretty_search_string to output |
|
# date query information. |
|
$pretty_search_string .= '<br />'.$prettydate.'<br />'; |
push @queries,$datequery; |
push @queries,$datequery; |
} |
} |
my $customquery; |
# |
if ($ENV{'form.custommetadata'}) { |
# Process form information for custom metadata querying |
$customquery=&build_custommetadata_query('custommetadata', |
my $customquery=undef; |
$ENV{'form.custommetadata'}); |
## |
|
## The custom metadata search was removed q long time ago mostly |
|
## because I was unable to figureout exactly how it worked and could |
|
## not imagine people actually using it. MH |
|
## |
|
# if ($env{'form.custommetadata'}) { |
|
# $pretty_search_string .=$font."Custom Metadata Search</font>: <b>". |
|
# $env{'form.custommetadata'}."</b><br />\n"; |
|
# $customquery=&build_custommetadata_query('custommetadata', |
|
# $env{'form.custommetadata'}); |
|
# } |
|
my $customshow=undef; |
|
# if ($env{'form.customshow'}) { |
|
# $pretty_search_string .=$font."Custom Metadata Display</font>: <b>". |
|
# $env{'form.customshow'}."</b><br />\n"; |
|
# $customshow=$env{'form.customshow'}; |
|
# $customshow=~s/[^\w\s]//g; |
|
# my @fields=split(/\s+/,$customshow); |
|
# $customshow=join(" ",@fields); |
|
# } |
|
## |
|
## Deal with restrictions to given domains |
|
## |
|
my ($libraries_to_query,$pretty_domains_string) = &parse_domain_restrictions(); |
|
if ($pretty_domains_string) { |
|
$pretty_search_string .= $pretty_domains_string."<br />\n"; |
} |
} |
|
# |
if (@queries) { |
if (@queries) { |
$query=join(" AND ",@queries); |
$query="SELECT * FROM metadata WHERE (".join(") AND (",@queries).')'; |
$query="select * from metadata where $query"; |
} elsif ($customquery) { |
my $reply=&Apache::lonnet::metadata_query($query); |
$query = ''; |
&output_results('Advanced',$r,$envhash,$customquery,$reply); |
} |
|
#&Apache::lonnet::logthis('advanced query = '.$/.$query); |
|
return ($query,$customquery,$customshow,$libraries_to_query, |
|
$pretty_search_string); |
|
} |
|
|
|
sub parse_domain_restrictions { |
|
my $libraries_to_query = undef; |
|
# $env{'form.domains'} can be either a scalar or an array reference. |
|
# We need an array. |
|
if (! exists($env{'form.domains'}) || $env{'form.domains'} eq '') { |
|
return (undef,'',undef); |
|
} |
|
my @allowed_domains = &Apache::loncommon::get_env_multiple('form.domains'); |
|
# |
|
my %domain_hash = (); |
|
my $pretty_domains_string; |
|
foreach (@allowed_domains) { |
|
$domain_hash{$_}++; |
|
} |
|
if ($domain_hash{'any'}) { |
|
$pretty_domains_string = &mt("in all LON-CAPA domains."); |
|
} else { |
|
if (@allowed_domains > 1) { |
|
$pretty_domains_string = &mt("in LON-CAPA domains:"); |
|
} else { |
|
$pretty_domains_string = &mt("in LON-CAPA domain "); |
|
} |
|
foreach (sort @allowed_domains) { |
|
$pretty_domains_string .= "<b>".$_."</b> "; |
|
} |
|
foreach (keys(%Apache::lonnet::libserv)) { |
|
if (exists($domain_hash{$Apache::lonnet::hostdom{$_}})) { |
|
push @$libraries_to_query,$_; |
|
} |
|
} |
} |
} |
else { |
return ($libraries_to_query, |
&output_results('Advanced',$r,$envhash,$query); |
$pretty_domains_string); |
|
} |
|
|
|
###################################################################### |
|
###################################################################### |
|
|
|
=pod |
|
|
|
=item &parse_basic_search() |
|
|
|
Parse the basic search form and return a scalar containing an sql query. |
|
|
|
=cut |
|
|
|
###################################################################### |
|
###################################################################### |
|
sub parse_basic_search { |
|
my ($r,$closebutton)=@_; |
|
# |
|
# Clean up fields for safety |
|
for my $field ('basicexp') { |
|
$env{"form.$field"}=~s/[^\w\s\'\"\!\(\)\-]//g; |
} |
} |
return OK; |
foreach ('mode','form','element') { |
|
# is this required? Hmmm. |
|
next unless (exists($env{"form.$_"})); |
|
$env{"form.$_"}=&unescape($env{"form.$_"}); |
|
$env{"form.$_"}=~s/[^\w\/\s\(\)\=\-\"\']//g; |
|
} |
|
my ($libraries_to_query,$pretty_domains_string) = &parse_domain_restrictions(); |
|
# |
|
# Check to see if enough of a query is filled in |
|
my $search_string = $env{'form.basicexp'}; |
|
if (! &filled($search_string)) { |
|
&output_blank_field_error($r,$closebutton,'phase=disp_basic'); |
|
return OK; |
|
} |
|
my $pretty_search_string=$search_string; |
|
my @Queries; |
|
my $searchfield = 'concat_ws(" ",'.join(',', |
|
('title','author','subject', |
|
'notes','abstract','keywords') |
|
).')'; |
|
my ($error,$SQLQuery) = &process_phrase_input($search_string, |
|
$env{'form.related'}, |
|
$searchfield); |
|
if ($error) { |
|
&output_unparsed_phrase_error($r,$closebutton,'phase=disp_basic', |
|
'','basicexp'); |
|
return; |
|
} |
|
push(@Queries,$SQLQuery); |
|
#foreach my $q (@Queries) { |
|
# &Apache::lonnet::logthis(' '.$q); |
|
#} |
|
my $final_query = 'SELECT * FROM metadata WHERE '.join(" AND ",@Queries); |
|
# |
|
if ($env{'form.related'}) { |
|
$pretty_search_string.=' '.&mt('(including related words)'); |
|
} |
|
if (defined($pretty_domains_string) && $pretty_domains_string ne '') { |
|
$pretty_search_string .= ' '.$pretty_domains_string; |
|
} |
|
$pretty_search_string .= "<br />\n"; |
|
$pretty_search_string =~ s:^<br /> and ::; |
|
#&Apache::lonnet::logthis('simple search final query = '.$/.$final_query); |
|
return ($final_query,$pretty_search_string, |
|
$libraries_to_query); |
} |
} |
|
|
# ---------------------------------------------------- see if a field is filled |
|
sub filled { |
############################################################### |
my ($field)=@_; |
############################################################### |
if ($field=~/\S/) { |
|
return 1; |
my @Phrases; |
|
|
|
sub concat { |
|
my ($item) = @_; |
|
my $results = ''; |
|
foreach (@$item) { |
|
if (ref($_) eq 'ARRAY') { |
|
$results .= join(' ',@$_); |
|
} |
} |
} |
else { |
return $results; |
return 0; |
} |
|
|
|
sub process_phrase_input { |
|
my ($phrase,$related,$field)=@_; |
|
#&Apache::lonnet::logthis('phrase = :'.$phrase.':'); |
|
my $grammar = <<'ENDGRAMMAR'; |
|
searchphrase: |
|
expression /^\Z/ { |
|
# &Apache::lonsearchcat::print_item(\@item,0); |
|
[@item]; |
|
} |
|
expression: |
|
phrase(s) { |
|
[@item]; |
|
} |
|
phrase: |
|
orword { |
|
[@item]; |
|
} |
|
| andword { |
|
[@item]; |
|
} |
|
| minusword { |
|
unshift(@::Phrases,$item[1]->[0]); |
|
unshift(@::Phrases,$item[1]->[1]); |
|
[@item]; |
|
} |
|
| word { |
|
unshift(@::Phrases,$item[1]); |
|
[@item]; |
|
} |
|
# |
|
orword: |
|
word 'OR' phrase { |
|
unshift(@::Phrases,'OR'); |
|
unshift(@::Phrases,$item[1]); |
|
[@item]; |
|
} |
|
| word 'or' phrase { |
|
unshift(@::Phrases,'OR'); |
|
unshift(@::Phrases,$item[1]); |
|
[@item]; |
|
} |
|
| minusword 'OR' phrase { |
|
unshift(@::Phrases,'OR'); |
|
unshift(@::Phrases,$item[1]->[0]); |
|
unshift(@::Phrases,$item[1]->[1]); |
|
[@item]; |
|
} |
|
| minusword 'or' phrase { |
|
unshift(@::Phrases,'OR'); |
|
unshift(@::Phrases,$item[1]->[0]); |
|
unshift(@::Phrases,$item[1]->[1]); |
|
[@item]; |
|
} |
|
andword: |
|
word phrase { |
|
unshift(@::Phrases,'AND'); |
|
unshift(@::Phrases,$item[1]); |
|
[@item]; |
|
} |
|
| minusword phrase { |
|
unshift(@::Phrases,'AND'); |
|
unshift(@::Phrases,$item[1]->[0]); |
|
unshift(@::Phrases,$item[1]->[1]); |
|
[@item]; |
|
} |
|
# |
|
minusword: |
|
'-' word { |
|
[$item[2],'NOT']; |
|
} |
|
word: |
|
"'" term(s) "'" { |
|
&Apache::lonsearchcat::concat(\@item); |
|
} |
|
| '"' term(s) '"' { |
|
&Apache::lonsearchcat::concat(\@item); |
|
} |
|
| term { |
|
$item[1]; |
|
} |
|
term: |
|
/[\w\Q:!@#$%^&*()+_=|{}<>,.;\\\/?\E]+/ { |
|
$item[1]; |
|
} |
|
ENDGRAMMAR |
|
# |
|
# The end result of parsing the phrase with the grammar is an array |
|
# @::Phrases. |
|
# $phrase = "gene splicing" or cat -> "gene splicing","OR","cat" |
|
# $phrase = "genetic engineering" -dna -> |
|
# "genetic engineering","AND","NOT","dna" |
|
# $phrase = cat or dog -poodle -> "cat","OR","dog","AND","NOT","poodle" |
|
undef(@::Phrases); |
|
my $p = new Parse::RecDescent($grammar); |
|
if (! defined($p->searchphrase($phrase))) { |
|
&Apache::lonnet::logthis('lonsearchcat:unable to process:'.$phrase); |
|
return 'Unable to process phrase '.$phrase; |
|
} |
|
# |
|
# Go through the phrases and make sense of them. |
|
# Apply modifiers NOT OR and AND to the phrases. |
|
my @NewPhrases; |
|
while(@::Phrases) { |
|
my $phrase = shift(@::Phrases); |
|
# &Apache::lonnet::logthis('phrase = '.$phrase); |
|
my $phrasedata; |
|
if ($phrase =~ /^(NOT|OR|AND)$/) { |
|
if ($phrase eq 'OR') { |
|
$phrasedata->{'or'}++; |
|
if (! @::Phrases) { $phrasedata = undef; last; } |
|
$phrase = shift(@::Phrases); |
|
} elsif ($phrase eq 'AND') { |
|
$phrasedata->{'and'}++; |
|
if (! @::Phrases) { $phrasedata = undef; last; } |
|
$phrase = shift(@::Phrases); |
|
} |
|
if ($phrase eq 'NOT') { |
|
$phrasedata->{'negate'}++; |
|
if (! @::Phrases) { $phrasedata = undef; last; } |
|
$phrase = shift(@::Phrases); |
|
} |
|
} |
|
$phrasedata->{'phrase'} = $phrase; |
|
if ($related) { |
|
my @NewWords; |
|
(undef,@NewWords) = &related_version($phrasedata->{'phrase'}); |
|
$phrasedata->{'related_words'} = \@NewWords; |
|
} |
|
push(@NewPhrases,$phrasedata); |
} |
} |
|
# |
|
# Actually build the sql query from the phrases |
|
my $SQLQuery; |
|
foreach my $phrase (@NewPhrases) { |
|
my $query; |
|
if ($phrase->{'negate'}) { |
|
$query .= $field.' NOT LIKE "%'.$phrase->{'phrase'}.'%"'; |
|
} else { |
|
$query .= $field.' LIKE "%'.$phrase->{'phrase'}.'%"'; |
|
} |
|
foreach my $related (@{$phrase->{'related_words'}}) { |
|
if ($phrase->{'negate'}) { |
|
$query .= ' AND '.$field.' NOT LIKE "%'.$related.'%"'; |
|
} else { |
|
$query .= ' OR '.$field.' LIKE "%'.$related.'%"'; |
|
} |
|
} |
|
if ($SQLQuery) { |
|
if ($phrase->{'or'}) { |
|
$SQLQuery .= ' OR ('.$query.')'; |
|
} else { |
|
$SQLQuery .= ' AND ('.$query.')'; |
|
} |
|
} else { |
|
$SQLQuery = '('.$query.')'; |
|
} |
|
} |
|
# |
|
# &Apache::lonnet::logthis("SQLQuery = $SQLQuery"); |
|
# |
|
return undef,$SQLQuery; |
} |
} |
|
|
# --------------------------------------------------- Performing a basic search |
###################################################################### |
sub basicsearch { |
###################################################################### |
my ($r,$envhash)=@_; |
|
my %ENV=%{$envhash}; |
|
|
|
# Clean up fields for safety |
=pod |
for my $field ('basicexp') { |
|
$ENV{"form.$field"}=~s/[^\w\s\(\)\-]//g; |
=item &related_version() |
|
|
|
Modifies an input string to include related words. Words in the string |
|
are replaced with parenthesized lists of 'OR'd words. For example |
|
"torque" is replaced with "(torque OR word1 OR word2 OR ...)". |
|
|
|
Note: Using this twice on a string is probably silly. |
|
|
|
=cut |
|
|
|
###################################################################### |
|
###################################################################### |
|
sub related_version { |
|
my ($word) = @_; |
|
return (undef) if (lc($word) =~ /\b(or|and|not)\b/); |
|
my @Words = &Apache::loncommon::get_related_words($word); |
|
# Only use 4 related words |
|
@Words = ($#Words>4? @Words[0..4] : @Words); |
|
my $result = join " OR ", ($word,@Words); |
|
return $result,sort(@Words); |
|
} |
|
|
|
|
|
###################################################################### |
|
###################################################################### |
|
|
|
=pod |
|
|
|
=item &build_custommetadata_query() |
|
|
|
Constructs a custom metadata query using a rather heinous regular |
|
expression. |
|
|
|
=cut |
|
|
|
###################################################################### |
|
###################################################################### |
|
sub build_custommetadata_query { |
|
my ($field_name,$logic_statement)=@_; |
|
my $q=new Text::Query('abc', |
|
-parse => 'Text::Query::ParseAdvanced', |
|
-build => 'Text::Query::BuildAdvancedString'); |
|
$q->prepare($logic_statement); |
|
my $matchexp=${$q}{'-parse'}{'-build'}{'matchstring'}; |
|
# quick fix to change literal into xml tag-matching |
|
# will eventually have to write a separate builder module |
|
# wordone=wordtwo becomes\<wordone\>[^\<] *wordtwo[^\<]*\<\/wordone\> |
|
$matchexp =~ s/(\w+)\\=([\w\\\+]+)?# wordone=wordtwo is changed to |
|
/\\<$1\\>?# \<wordone\> |
|
\[\^\\<\]?# [^\<] |
|
\*$2\[\^\\<\]?# *wordtwo[^\<] |
|
\*\\<\\\/$1\\>?# *\<\/wordone\> |
|
/g; |
|
return $matchexp; |
|
} |
|
|
|
|
|
###################################################################### |
|
###################################################################### |
|
|
|
=pod |
|
|
|
=item &build_date_queries() |
|
|
|
Builds a SQL logic query to check time/date entries. |
|
Also reports errors (check for /^Incorrect/). |
|
|
|
=cut |
|
|
|
###################################################################### |
|
###################################################################### |
|
sub build_date_queries { |
|
my ($cafter,$cbefore,$mafter,$mbefore) = @_; |
|
my ($result,$error,$pretty_string); |
|
# |
|
# Verify the input |
|
if (! defined($cafter) && ! defined($cbefore) && |
|
! defined($mafter) && ! defined($mbefore)) { |
|
# This is an okay situation, so return undef for the error |
|
return (undef,undef,undef); |
|
} |
|
if ((defined($cafter) && ! defined($cbefore)) || |
|
(defined($cbefore) && ! defined($cafter))) { |
|
# This is bad, so let them know |
|
$error = &mt('Incorrect entry for the creation date. '. |
|
'You must specify both the beginning and ending dates.'); |
|
} |
|
if (! defined($error) && |
|
((defined($mafter) && ! defined($mbefore)) || |
|
(defined($mbefore) && ! defined($mafter)))) { |
|
# This is also bad, so let them know |
|
$error = &mt('Incorrect entry for the last revision date. '. |
|
'You must specify both the beginning and ending dates.'); |
|
} |
|
if (! defined($error)) { |
|
# |
|
# Build the queries |
|
my @queries; |
|
if (defined($cbefore) && defined($cafter)) { |
|
my (undef,undef,undef,$caday,$camon,$cayear) = localtime($cafter); |
|
my (undef,undef,undef,$cbday,$cbmon,$cbyear) = localtime($cbefore); |
|
# Correct for year being relative to 1900 |
|
$cayear+=1900; $cbyear+=1900; |
|
my $cquery= |
|
'(creationdate BETWEEN '. |
|
"'".$cayear.'-'.$camon.'-'.$caday."'". |
|
' AND '. |
|
"'".$cbyear.'-'.$cbmon.'-'.$cbday." 23:59:59')"; |
|
$pretty_string .= '<br />' if (defined($pretty_string)); |
|
$pretty_string .= |
|
&mt('created between [_1] and [_2]', |
|
&Apache::lonlocal::locallocaltime($cafter), |
|
&Apache::lonlocal::locallocaltime($cbefore+24*60*60-1)); |
|
push(@queries,$cquery); |
|
$pretty_string =~ s/ 00:00:00//g; |
|
} |
|
if (defined($mbefore) && defined($mafter)) { |
|
my (undef,undef,undef,$maday,$mamon,$mayear) = localtime($mafter); |
|
my (undef,undef,undef,$mbday,$mbmon,$mbyear) = localtime($mbefore); |
|
# Correct for year being relative to 1900 |
|
$mayear+=1900; $mbyear+=1900; |
|
my $mquery= |
|
'(lastrevisiondate BETWEEN '. |
|
"'".$mayear.'-'.$mamon.'-'.$maday."'". |
|
' AND '. |
|
"'".$mbyear.'-'.$mbmon.'-'.$mbday." 23:59:59')"; |
|
push(@queries,$mquery); |
|
$pretty_string .= '<br />' if (defined($pretty_string)); |
|
$pretty_string .= |
|
&mt('last revised between [_1] and [_2]', |
|
&Apache::lonlocal::locallocaltime($mafter), |
|
&Apache::lonlocal::locallocaltime($mbefore+24*60*60-1)); |
|
$pretty_string =~ s/ 00:00:00//g; |
|
} |
|
if (@queries) { |
|
$result .= join(" AND ",@queries); |
|
} |
} |
} |
|
return ($result,$error,$pretty_string); |
|
} |
|
|
unless (&filled($ENV{'form.basicexp'})) { |
###################################################################### |
&output_blank_field_error($r); |
###################################################################### |
return OK; |
|
|
=pod |
|
|
|
=item ©right_check() |
|
|
|
Inputs: $Metadata, a hash pointer of metadata for a resource. |
|
|
|
Returns: 1 if the resource is available to the user making the query, |
|
0 otherwise. |
|
|
|
=cut |
|
|
|
###################################################################### |
|
###################################################################### |
|
sub copyright_check { |
|
my $Metadata = shift; |
|
# Check copyright tags and skip results the user cannot use |
|
my (undef,undef,$resdom,$resname) = split('/', |
|
$Metadata->{'url'}); |
|
# Check for priv |
|
if (($Metadata->{'copyright'} eq 'priv') && |
|
(($env{'user.name'} ne $resname) && |
|
($env{'user.domain'} ne $resdom))) { |
|
return 0; |
|
} |
|
# Check for domain |
|
if (($Metadata->{'copyright'} eq 'domain') && |
|
($env{'user.domain'} ne $resdom)) { |
|
return 0; |
} |
} |
|
return 1; |
|
} |
|
|
my $query=''; |
###################################################################### |
my $concatarg=join('," ",', |
###################################################################### |
('title', 'author', 'subject', 'notes', 'abstract')); |
|
|
|
$query="select * from metadata where concat($concatarg) like '\%$ENV{'form.basicexp'}\%'"; |
=pod |
my $reply=&Apache::lonnet::metadata_query($query); |
|
&output_results('Basic',$r,$envhash,$query,$reply); |
=item &ensure_db_and_table() |
return OK; |
|
|
Ensure we can get lonmysql to connect to the database and the table we |
|
need exists. |
|
|
|
Inputs: $r, table id |
|
|
|
Returns: undef on error, 1 if the table exists. |
|
|
|
=cut |
|
|
|
###################################################################### |
|
###################################################################### |
|
sub ensure_db_and_table { |
|
my ($r,$table) = @_; |
|
## |
|
## Sanity check the table id. |
|
## |
|
if (! defined($table) || $table eq '' || $table =~ /\D/ ) { |
|
$r->print("Unable to retrieve search results. ". |
|
"Unable to determine the table results were stored in. ". |
|
&Apache::loncommon::end_page()); |
|
return undef; |
|
} |
|
## |
|
## Make sure we can connect and the table exists. |
|
## |
|
my $connection_result = &Apache::lonmysql::connect_to_db(); |
|
if (!defined($connection_result)) { |
|
$r->print("Unable to connect to the MySQL database where your results". |
|
" are stored.". |
|
&Apache::loncommon::end_page()); |
|
&Apache::lonnet::logthis("lonsearchcat: unable to get lonmysql to". |
|
" connect to database."); |
|
&Apache::lonnet::logthis(&Apache::lonmysql::get_error()); |
|
return undef; |
|
} |
|
my $table_check = &Apache::lonmysql::check_table($table); |
|
if (! defined($table_check)) { |
|
$r->print("A MySQL error has occurred.</form>". |
|
&Apache::loncommon::end_page()); |
|
&Apache::lonnet::logthis("lonmysql was unable to determine the status". |
|
" of table ".$table); |
|
return undef; |
|
} elsif (! $table_check) { |
|
$r->print("The table of results could not be found."); |
|
&Apache::lonnet::logthis("The user requested a table, ".$table. |
|
", that could not be found."); |
|
return undef; |
|
} |
|
return 1; |
} |
} |
|
|
# ---------------- Message to output when there are not enough fields filled in |
###################################################################### |
sub output_blank_field_error { |
###################################################################### |
my ($r)=@_; |
|
# make query information persistent to allow for subsequent revision |
|
my $persistent=&make_persistent(); |
|
|
|
$r->print(<<BEGINNING); |
=pod |
<html> |
|
<head> |
=item &print_sort_form() |
<title>The LearningOnline Network with CAPA</title> |
|
BEGINNING |
The sort feature is not implemented at this time. This form just prints |
$r->print(<<RESULTS); |
a link to change the search query. |
</head> |
|
<body bgcolor="#ffffff"> |
=cut |
<img align=right src=/adm/lonIcons/lonlogos.gif> |
|
<h1>Search Catalog</h1> |
###################################################################### |
<form method="post" action="/adm/searchcat"> |
###################################################################### |
$persistent |
sub print_sort_form { |
<input type='button' value='Revise search request' |
my ($r,$pretty_query_string) = @_; |
onClick='this.form.submit();'> |
|
$closebutton |
## |
<hr> |
my %SortableFields=&Apache::lonlocal::texthash( |
<h3>Helpful Message</h3> |
id => 'Default', |
|
title => 'Title', |
|
author => 'Author', |
|
subject => 'Subject', |
|
url => 'URL', |
|
version => 'Version Number', |
|
mime => 'Mime type', |
|
lang => 'Language', |
|
owner => 'Owner/Publisher', |
|
copyright => 'Copyright', |
|
hostname => 'Host', |
|
creationdate => 'Creation Date', |
|
lastrevisiondate => 'Revision Date' |
|
); |
|
## |
|
my $table = $env{'form.table'}; |
|
return if (! &ensure_db_and_table($r,$table)); |
|
## |
|
## Get the number of results |
|
## |
|
my $total_results = &Apache::lonmysql::number_of_rows($table); |
|
if (! defined($total_results)) { |
|
$r->print("A MySQL error has occurred.</form>". |
|
&Apache::loncommon::end_page()); |
|
&Apache::lonnet::logthis("lonmysql was unable to determine the number". |
|
" of rows in table ".$table); |
|
&Apache::lonnet::logthis(&Apache::lonmysql::get_error()); |
|
return; |
|
} |
|
my $js =<<END; |
|
<script type="text/javascript"> |
|
function change_sort() { |
|
var newloc = "/adm/searchcat?phase=results"; |
|
newloc += "&persistent_db_id=$env{'form.persistent_db_id'}"; |
|
newloc += "&sortby="; |
|
newloc += document.forms.statusform.elements.sortby.value; |
|
parent.resultsframe.location= newloc; |
|
} |
|
</script> |
|
END |
|
|
|
my $start_page = &Apache::loncommon::start_page('Results',$js, |
|
{'no_title' => 1}); |
|
my $breadcrumbs= |
|
&Apache::lonhtmlcommon::breadcrumbs('Searching','Searching', |
|
$env{'form.catalogmode'} ne 'import'); |
|
|
|
my $result = <<END; |
|
$start_page |
|
$breadcrumbs |
|
<form name="statusform" action="" method="post" target="_top"> |
|
<input type="hidden" name="catalogmode" value="import" /> |
|
<input type="hidden" name="acts" value="" /> |
|
END |
|
|
|
#<h2>Sort Results</h2> |
|
#Sort by: <select size="1" name="sortby" onchange="javascript:change_sort();"> |
|
# $env{'form.sortby'} = 'id' if (! defined($env{'form.sortby'})); |
|
# foreach (keys(%SortableFields)) { |
|
# $result.="<option name=\"$_\""; |
|
# if ($_ eq $env{'form.sortby'}) { |
|
# $result.=" selected "; |
|
# } |
|
# $result.=" >$SortableFields{$_}</option>\n"; |
|
# } |
|
# $result.="</select>\n"; |
|
my $revise = &revise_button(); |
|
$result.=<<END; |
<p> |
<p> |
Incorrect search query due to blank entry fields. |
There are $total_results matches to your query. $revise |
You need to fill in the relevant |
</p><p> |
fields on the search page in order for a query to be |
Search: $pretty_query_string |
processed. |
|
</p> |
</p> |
</body> |
</form> |
</html> |
END |
RESULTS |
$r->print($result.&Apache::loncommon::end_page()); |
|
return; |
} |
} |
|
|
# ----------------------------- format and output results based on a reply list |
##################################################################### |
sub output_results { |
##################################################################### |
my ($mode,$r,$envhash,$query,@replylist)=@_; |
|
my %ENV=%{$envhash}; |
|
my $compiledresult=''; |
|
|
|
foreach my $reply (@replylist) { |
|
|
|
my @results; |
|
|
|
my $replyfile=''; |
|
$reply=~/^([\.\w]+)$/; # must do since 'use strict' checks for tainting |
|
$replyfile=$r->dir_config('lonDaemons').'/tmp/'.$1; |
|
$reply=~/(.*?)\_/; |
|
my $hostname=$1; |
|
sleep 3; # temporary fix, need to check for completion and status |
|
{ |
|
while (1) { |
|
last if -e $replyfile; |
|
sleep 1; |
|
} |
|
# QUESTION: how should I handle this error condition.. |
|
# I'm sure there is syntax elsewhere I can use.. |
|
my $fh=Apache::File->new($replyfile) or |
|
($r->print('file cannot be opened') and return OK); |
|
@results=<$fh>; |
|
} |
|
|
|
foreach my $result (@results) { |
=pod |
my @fields=map |
|
{&Apache::lonnet::unescape($_)} |
=item MySQL Table Description |
(split(/\,/,$result)); |
|
my ($title,$author,$subject,$url,$keywords,$version, |
MySQL table creation requires a precise description of the data to be |
$notes,$abstract,$mime,$lang, |
stored. The use of the correct types to hold data is vital to efficient |
$creationdate,$lastrevisiondate,$owner,$copyright)=@fields; |
storage and quick retrieval of records. The columns must be described in |
my $shortabstract=$abstract; |
the following format: |
$shortabstract=substr($abstract,0,200) if length($abstract)>200; |
|
$fields[7]=$shortabstract; |
=cut |
$compiledresult.=<<END; |
|
<p> |
##################################################################### |
|
##################################################################### |
|
# |
|
# These should probably be scoped but I don't have time right now... |
|
# |
|
my @Datatypes; |
|
my @Fullindicies; |
|
|
|
###################################################################### |
|
###################################################################### |
|
|
|
=pod |
|
|
|
=item &create_results_table() |
|
|
|
Creates the table of search results by calling lonmysql. Stores the |
|
table id in $env{'form.table'} |
|
|
|
Inputs: none. |
|
|
|
Returns: the identifier of the table on success, undef on error. |
|
|
|
=cut |
|
|
|
###################################################################### |
|
###################################################################### |
|
sub set_up_table_structure { |
|
my ($datatypes,$fullindicies) = |
|
&LONCAPA::lonmetadata::describe_metadata_storage(); |
|
# Copy the table description before modifying it... |
|
@Datatypes = @{$datatypes}; |
|
unshift(@Datatypes,{name => 'id', |
|
type => 'MEDIUMINT', |
|
restrictions => 'UNSIGNED NOT NULL', |
|
primary_key => 'yes', |
|
auto_inc => 'yes' }); |
|
@Fullindicies = @{$fullindicies}; |
|
return; |
|
} |
|
|
|
sub create_results_table { |
|
&set_up_table_structure(); |
|
my $table = &Apache::lonmysql::create_table |
|
( { columns => \@Datatypes, |
|
FULLTEXT => [{'columns' => \@Fullindicies},], |
|
} ); |
|
if (defined($table)) { |
|
$env{'form.table'} = $table; |
|
return $table; |
|
} |
|
return undef; # Error... |
|
} |
|
|
|
###################################################################### |
|
###################################################################### |
|
|
|
=pod |
|
|
|
=item Search Status update functions |
|
|
|
Each of the following functions changes the values of one of the |
|
input fields used to display the search status to the user. The names |
|
should be explanatory. |
|
|
|
Inputs: Apache request handler ($r), text to display. |
|
|
|
Returns: Nothing. |
|
|
|
=over 4 |
|
|
|
=item &update_count_status() |
|
|
|
=item &update_status() |
|
|
|
=item &update_seconds() |
|
|
|
=back |
|
|
|
=cut |
|
|
|
###################################################################### |
|
###################################################################### |
|
sub update_count_status { |
|
my ($r,$text) = @_; |
|
$text =~ s/\'/\\\'/g; |
|
$r->print |
|
("<script>document.statusform.count.value = ' $text'</script>\n"); |
|
$r->rflush(); |
|
} |
|
|
|
sub update_status { |
|
my ($r,$text) = @_; |
|
$text =~ s/\'/\\\'/g; |
|
$r->print |
|
("<script>document.statusform.status.value = ' $text'</script>\n"); |
|
$r->rflush(); |
|
} |
|
|
|
{ |
|
my $max_time = 300; # seconds for the search to complete |
|
my $start_time = 0; |
|
my $last_time = 0; |
|
|
|
sub reset_timing { |
|
$start_time = 0; |
|
$last_time = 0; |
|
} |
|
|
|
sub time_left { |
|
if ($start_time == 0) { |
|
$start_time = time; |
|
} |
|
my $time_left = $max_time - (time - $start_time); |
|
$time_left = 0 if ($time_left < 0); |
|
return $time_left; |
|
} |
|
|
|
sub update_seconds { |
|
my ($r) = @_; |
|
my $time = &time_left(); |
|
if (($last_time-$time) > 0) { |
|
$r->print("<script>". |
|
"document.statusform.seconds.value = '$time'". |
|
"</script>\n"); |
|
$r->rflush(); |
|
} |
|
$last_time = $time; |
|
} |
|
|
|
} |
|
|
|
###################################################################### |
|
###################################################################### |
|
|
|
=pod |
|
|
|
=item &revise_button() |
|
|
|
Inputs: None |
|
|
|
Returns: html string for a 'revise search' button. |
|
|
|
=cut |
|
|
|
###################################################################### |
|
###################################################################### |
|
sub revise_button { |
|
my $revise_phase = 'disp_basic'; |
|
$revise_phase = 'disp_adv' if ($env{'form.searchmode'} eq 'advanced'); |
|
my $newloc = '/adm/searchcat'. |
|
'?persistent_db_id='.$env{'form.persistent_db_id'}. |
|
'&cleargroupsort=1'. |
|
'&phase='.$revise_phase; |
|
my $result = qq{<input type="button" value="Revise search" name="revise"} . |
|
qq{ onClick="parent.location='$newloc';" /> }; |
|
return $result; |
|
} |
|
|
|
###################################################################### |
|
###################################################################### |
|
|
|
=pod |
|
|
|
=item &run_search() |
|
|
|
Executes a search query by sending it the the other servers and putting the |
|
results into MySQL. |
|
|
|
=cut |
|
|
|
###################################################################### |
|
###################################################################### |
|
sub run_search { |
|
my ($r,$query,$customquery,$customshow,$serverlist,$pretty_string) = @_; |
|
|
|
my $connection = $r->connection; |
|
# |
|
# Print run_search header |
|
# |
|
my $start_page = &Apache::loncommon::start_page('Search Status',undef, |
|
{'no_title' => 1}); |
|
my $breadcrumbs = |
|
&Apache::lonhtmlcommon::breadcrumbs('Searching','Searching', |
|
$env{'form.catalogmode'} ne 'import'); |
|
$r->print(<<END); |
|
$start_page |
|
$breadcrumbs |
|
<form name="statusform" action="" method="post"> |
|
<input type="hidden" name="acts" value="" /> |
END |
END |
$compiledresult.=<<END if $ENV{'form.catalogmode'} eq 'interactive'; |
# Remove leading and trailing <br /> |
|
$pretty_string =~ s:^\s*<br />::i; |
|
$pretty_string =~ s:(<br />)*\s*$::im; |
|
my @Lines = split("<br />",$pretty_string); |
|
# I keep getting blank items at the end of the list, hence the following: |
|
while ($Lines[-1] =~ /^\s*$/ && @Lines) { |
|
pop(@Lines); |
|
} |
|
if (@Lines > 2) { |
|
$pretty_string = join '<br />',(@Lines[0..2],'....<br />'); |
|
} |
|
$r->print(&mt("Search: [_1]",$pretty_string)); |
|
$r->rflush(); |
|
# |
|
# Determine the servers we need to contact. |
|
my @Servers_to_contact; |
|
if (defined($serverlist)) { |
|
if (ref($serverlist) eq 'ARRAY') { |
|
@Servers_to_contact = @$serverlist; |
|
} else { |
|
@Servers_to_contact = ($serverlist); |
|
} |
|
} else { |
|
@Servers_to_contact = sort(keys(%Apache::lonnet::libserv)); |
|
} |
|
my %Server_status; |
|
# |
|
# Check on the mysql table we will use to store results. |
|
my $table =$env{'form.table'}; |
|
if (! defined($table) || $table eq '' || $table =~ /\D/ ) { |
|
$r->print("Unable to determine table id to store search results in.". |
|
"The search has been aborted.". |
|
&Apache::loncommon::end_page()); |
|
return; |
|
} |
|
my $table_status = &Apache::lonmysql::check_table($table); |
|
if (! defined($table_status)) { |
|
$r->print("Unable to determine status of table.". |
|
&Apache::loncommon::end_page()); |
|
&Apache::lonnet::logthis("Bogus table id of $table for ". |
|
"$env{'user.name'} @ $env{'user.domain'}"); |
|
&Apache::lonnet::logthis("lonmysql error = ". |
|
&Apache::lonmysql::get_error()); |
|
return; |
|
} |
|
if (! $table_status) { |
|
&Apache::lonnet::logthis("lonmysql error = ". |
|
&Apache::lonmysql::get_error()); |
|
&Apache::lonnet::logthis("lonmysql debug = ". |
|
&Apache::lonmysql::get_debug()); |
|
&Apache::lonnet::logthis('table status = "'.$table_status.'"'); |
|
$r->print("The table id,$table, we tried to use is invalid.". |
|
"The search has been aborted.". |
|
&Apache::loncommon::end_page()); |
|
return; |
|
} |
|
## |
|
## Prepare for the big loop. |
|
my $hitcountsum; |
|
my $server; |
|
my $status; |
|
my $revise = &revise_button(); |
|
$r->print(<<END); |
|
<table> |
|
<tr><th>Status</th><th>Total Matches</th><th>Time Remaining</th><th></th></tr> |
|
<tr> |
|
<td><input type="text" name="status" value="" size="50" /></td> |
|
<td><input type="text" name="count" value="" size="10" /></td> |
|
<td><input type="text" name="seconds" value="" size="8" /></td> |
|
<td>$revise</td> |
|
</tr> |
|
</table> |
|
</form> |
|
END |
|
$r->rflush(); |
|
&reset_timing(); |
|
&update_seconds($r); |
|
&update_status($r,&mt('contacting [_1]',$Servers_to_contact[0])); |
|
while (&time_left() && |
|
((@Servers_to_contact) || keys(%Server_status))) { |
|
&update_seconds($r); |
|
# |
|
# Send out a search request |
|
if (@Servers_to_contact) { |
|
# Contact one server |
|
my $server = shift(@Servers_to_contact); |
|
&update_status($r,&mt('contacting [_1]',$server)); |
|
my $reply=&Apache::lonnet::metadata_query($query,$customquery, |
|
$customshow,[$server]); |
|
($server) = keys(%$reply); |
|
$Server_status{$server} = $reply->{$server}; |
|
} else { |
|
# wait a sec. to give time for files to be written |
|
# This sleep statement is here instead of outside the else |
|
# block because we do not want to pause if we have servers |
|
# left to contact. |
|
if (scalar (keys(%Server_status))) { |
|
&update_status($r, |
|
&mt('waiting on [_1]',join(' ',keys(%Server_status)))); |
|
} |
|
sleep(1); |
|
} |
|
# |
|
# Loop through the servers we have contacted but do not |
|
# have results from yet, looking for results. |
|
foreach my $server (keys(%Server_status)) { |
|
last if ($connection->aborted()); |
|
&update_seconds($r); |
|
my $status = $Server_status{$server}; |
|
if ($status eq 'con_lost') { |
|
delete ($Server_status{$server}); |
|
next; |
|
} |
|
$status=~s|/||g; |
|
my $datafile=$r->dir_config('lonDaemons').'/tmp/'.$status; |
|
if (-e $datafile && ! -e "$datafile.end") { |
|
&update_status($r,&mt('Receiving results from [_1]',$server)); |
|
next; |
|
} |
|
last if ($connection->aborted()); |
|
if (-e "$datafile.end") { |
|
&update_status($r,&mt('Reading results from [_1]',$server)); |
|
if (-z "$datafile") { |
|
delete($Server_status{$server}); |
|
next; |
|
} |
|
my $fh; |
|
if (!($fh=Apache::File->new($datafile))) { |
|
$r->print("Unable to open search results file for ". |
|
"server $server. Omitting from search"); |
|
delete($Server_status{$server}); |
|
next; |
|
} |
|
# Read in the whole file. |
|
while (my $result = <$fh>) { |
|
last if ($connection->aborted()); |
|
# |
|
# Records are stored one per line |
|
chomp($result); |
|
next if (! $result); |
|
# |
|
# Parse the result. |
|
my %Fields = &parse_raw_result($result,$server); |
|
$Fields{'hostname'} = $server; |
|
# |
|
# Skip if external and we did not want that |
|
next if ((! $env{'form.inclext'}) && ($Fields{'url'}=~/^\/ext\//)); |
|
# Skip based on copyright |
|
next if (! ©right_check(\%Fields)); |
|
|
|
# |
|
# Store the result in the mysql database |
|
my $result = &Apache::lonmysql::store_row($table,\%Fields); |
|
if (! defined($result)) { |
|
$r->print(&Apache::lonmysql::get_error()); |
|
} |
|
# |
|
$hitcountsum ++; |
|
&update_seconds($r); |
|
if ($hitcountsum % 50 == 0) { |
|
&update_count_status($r,$hitcountsum); |
|
} |
|
} |
|
$fh->close(); |
|
# $server is only deleted if the results file has been |
|
# found and (successfully) opened. This may be a bad idea. |
|
delete($Server_status{$server}); |
|
} |
|
last if ($connection->aborted()); |
|
&update_count_status($r,$hitcountsum); |
|
} |
|
last if ($connection->aborted()); |
|
&update_seconds($r); |
|
} |
|
&update_status($r,&mt('Search Complete [_1]',$server)); |
|
&update_seconds($r); |
|
# |
|
&Apache::lonmysql::disconnect_from_db(); # This is unneccessary |
|
# |
|
# We have run out of time or run out of servers to talk to and |
|
# results to get, so let the client know the top frame needs to be |
|
# loaded from /adm/searchcat |
|
$r->print(&Apache::loncommon::end_page()); |
|
# if ($env{'form.catalogmode'} ne 'import') { |
|
$r->print("<script>". |
|
"window.location='/adm/searchcat?". |
|
"phase=sort&". |
|
"persistent_db_id=$env{'form.persistent_db_id'}';". |
|
"</script>"); |
|
# } |
|
return; |
|
} |
|
|
|
###################################################################### |
|
###################################################################### |
|
|
|
=pod |
|
|
|
=item &prev_next_buttons() |
|
|
|
Returns html for the previous and next buttons on the search results page. |
|
|
|
=cut |
|
|
|
###################################################################### |
|
###################################################################### |
|
sub prev_next_buttons { |
|
my ($current_min,$show,$total,$parms) = @_; |
|
return '' if ($show eq 'all'); # No links if you get them all at once. |
|
# |
|
# Create buttons |
|
my $buttons = '<input type="submit" name="prev" value="'.&mt('Prev').'" '; |
|
$buttons .= '/>'; |
|
$buttons .= ' 'x3; |
|
$buttons .= '<input type="submit" name="reload" '. |
|
'value="'.&mt('Reload').'" />'; |
|
$buttons .= ' 'x3; |
|
$buttons .= '<input type="submit" name="next" value="'.&mt('Next').'" '; |
|
$buttons .= '/>'; |
|
return $buttons; |
|
} |
|
|
|
###################################################################### |
|
###################################################################### |
|
|
|
=pod |
|
|
|
=item &display_results() |
|
|
|
Prints the results out for selection and perusal. |
|
|
|
=cut |
|
|
|
###################################################################### |
|
###################################################################### |
|
sub display_results { |
|
my ($r,$importbutton,$closebutton,$diropendb) = @_; |
|
my $connection = $r->connection; |
|
$r->print(&search_results_header($importbutton,$closebutton)); |
|
## |
|
## Set viewing function |
|
## |
|
my $viewfunction = $Views{$env{'form.viewselect'}}; |
|
if (!defined($viewfunction)) { |
|
$r->print("Internal Error - Bad view selected.\n"); |
|
$r->rflush(); |
|
return; |
|
} |
|
## |
|
## $checkbox_num is a count of the number of checkboxes output on the |
|
## page this is used only during catalogmode=import. |
|
my $checkbox_num = 0; |
|
## |
|
## Get the catalog controls setup |
|
## |
|
my $action = "/adm/searchcat?phase=results"; |
|
## |
|
## Deal with import by opening the import db file. |
|
if ($env{'form.catalogmode'} eq 'import') { |
|
if (! tie(%groupsearch_db,'GDBM_File',$diropendb, |
|
&GDBM_WRCREAT(),0640)) { |
|
$r->print('Unable to store import results.</form>'. |
|
&Apache::loncommon::end_page()); |
|
$r->rflush(); |
|
return; |
|
} |
|
} |
|
## |
|
## Prepare the table for querying |
|
my $table = $env{'form.table'}; |
|
return if (! &ensure_db_and_table($r,$table)); |
|
## |
|
## Get the number of results |
|
my $total_results = &Apache::lonmysql::number_of_rows($table); |
|
if (! defined($total_results)) { |
|
$r->print("A MySQL error has occurred.</form>". |
|
&Apache::loncommon::end_page()); |
|
&Apache::lonnet::logthis("lonmysql was unable to determine the number". |
|
" of rows in table ".$table); |
|
&Apache::lonnet::logthis(&Apache::lonmysql::get_error()); |
|
return; |
|
} |
|
## |
|
## Determine how many results we need to get |
|
$env{'form.start'} = 1 if (! exists($env{'form.start'})); |
|
$env{'form.show'} = 20 if (! exists($env{'form.show'})); |
|
if (exists($env{'form.prev'})) { |
|
$env{'form.start'} -= $env{'form.show'}; |
|
} elsif (exists($env{'form.next'})) { |
|
$env{'form.start'} += $env{'form.show'}; |
|
} |
|
$env{'form.start'} = 1 if ($env{'form.start'}<1); |
|
$env{'form.start'} = $total_results if ($env{'form.start'}>$total_results); |
|
my $min = $env{'form.start'}; |
|
my $max; |
|
if ($env{'form.show'} eq 'all') { |
|
$max = $total_results ; |
|
} else { |
|
$max = $min + $env{'form.show'} - 1; |
|
$max = $total_results if ($max > $total_results); |
|
} |
|
## |
|
## Output form elements |
|
$r->print(&hidden_field('table'). |
|
&hidden_field('phase'). |
|
&hidden_field('persistent_db_id'). |
|
&hidden_field('start') |
|
); |
|
# |
|
# Build sorting selector |
|
my @fields = |
|
( |
|
{key=>'default' }, |
|
{key=>'title' }, |
|
{key =>'author' }, |
|
{key =>'subject'}, |
|
{key =>'url',desc=>'URL'}, |
|
{key =>'keywords'}, |
|
{key =>'language'}, |
|
{key =>'creationdate'}, |
|
{key =>'lastrevisiondate'}, |
|
{key =>'owner'}, |
|
{key =>'copyright'}, |
|
{key =>'authorspace'}, |
|
{key =>'lowestgradelevel'}, |
|
{key =>'highestgradelevel'}, |
|
{key =>'standards',desc=>'Standards'}, |
|
{key =>'count',desc=>'Number of accesses'}, |
|
{key =>'stdno',desc=>'Students Attempting'}, |
|
{key =>'avetries',desc=>'Average Number of Tries'}, |
|
{key =>'difficulty',desc=>'Mean Degree of Difficulty'}, |
|
{key =>'disc',desc=>'Mean Degree of Discrimination'}, |
|
{key =>'clear',desc=>'Evaluation: Clear'}, |
|
{key =>'technical',desc=>'Evaluation: Technically Correct'}, |
|
{key =>'correct',desc=>'Evaluation: Material is Correct'}, |
|
{key =>'helpful',desc=>'Evaluation: Material is Helpful'}, |
|
{key =>'depth',desc=>'Evaluation: Material has Depth'}, |
|
); |
|
my %fieldnames = &Apache::lonmeta::fieldnames(); |
|
my @field_order; |
|
foreach my $field_data (@fields) { |
|
push(@field_order,$field_data->{'key'}); |
|
if (! exists($field_data->{'desc'})) { |
|
$field_data->{'desc'}=$fieldnames{$field_data->{'key'}}; |
|
} else { |
|
if (! defined($field_data->{'desc'})) { |
|
$field_data->{'desc'} = ucfirst($field_data->{'key'}); |
|
} |
|
$field_data->{'desc'} = &mt($field_data->{'desc'}); |
|
} |
|
} |
|
my %sort_fields = map {$_->{'key'},$_->{'desc'}} @fields; |
|
$sort_fields{'select_form_order'} = \@field_order; |
|
$env{'form.sortorder'} = 'desc' if (! exists($env{'form.sortorder'})); |
|
$env{'form.sortfield'} = 'count' if (! exists($env{'form.sortfield'})); |
|
if (! exists($env{'form.sortorder'})) { |
|
if ($env{'form.sortfield'}=~/^(count|stdno|disc|clear|technical|correct|helpful)$/) { |
|
$env{'form.sortorder'}='desc'; |
|
} else { |
|
$env{'form.sortorder'}='asc'; |
|
} |
|
} |
|
my $sortform = &mt('Sort by [_1] [_2]', |
|
&Apache::loncommon::select_form($env{'form.sortfield'}, |
|
'sortfield', |
|
%sort_fields), |
|
&Apache::loncommon::select_form($env{'form.sortorder'}, |
|
'sortorder', |
|
(asc =>&mt('Ascending'), |
|
desc=>&mt('Descending') |
|
)) |
|
); |
|
## |
|
## Output links (if necessary) for 'prev' and 'next' pages. |
|
$r->print |
|
('<table width="100%"><tr><td width="25%" align="right">'. |
|
'<nobr>'.$sortform.'</nobr>'. |
|
'</td><td width="25%" align="right">'. |
|
&prev_next_buttons($min,$env{'form.show'},$total_results). |
|
'</td><td align="right">'. |
|
&viewoptions().'</td></tr></table>' |
|
); |
|
if ($total_results == 0) { |
|
$r->print('<meta HTTP-EQUIV="Refresh" CONTENT="2" />'. |
|
'<h3>'.&mt('There are currently no results').'.</h3>'. |
|
"</form>". |
|
&Apache::loncommon::end_page()); |
|
return; |
|
} else { |
|
$r->print('<center>'. |
|
mt('Results [_1] to [_2] out of [_3]', |
|
$min,$max,$total_results). |
|
"</center>\n"); |
|
} |
|
## |
|
## Get results from MySQL table |
|
my $sort_command = 'id>='.$min.' AND id<='.$max; |
|
my $order; |
|
if (exists($env{'form.sortorder'})) { |
|
if ($env{'form.sortorder'} eq 'asc') { |
|
$order = 'ASC'; |
|
} elsif ($env{'form.sortorder'} eq 'desc') { |
|
$order = 'DESC'; |
|
} else { |
|
$order = ''; |
|
} |
|
} else { |
|
$order = ''; |
|
} |
|
if ($env{'form.sortfield'} ne 'default' && |
|
exists($sort_fields{$env{'form.sortfield'}})) { |
|
$sort_command = $env{'form.sortfield'}.' IS NOT NULL '. |
|
'ORDER BY '.$env{'form.sortfield'}.' '.$order. |
|
' LIMIT '.($min-1).','.($max-$min+1); |
|
} |
|
my @Results = &Apache::lonmysql::get_rows($table,$sort_command); |
|
## |
|
## Loop through the results and output them. |
|
foreach my $row (@Results) { |
|
if ($connection->aborted()) { |
|
&cleanup(); |
|
return; |
|
} |
|
my %Fields = %{&parse_row(@$row)}; |
|
my $output="<p>\n"; |
|
if (! defined($Fields{'title'}) || $Fields{'title'} eq '') { |
|
$Fields{'title'} = 'Untitled'; |
|
} |
|
my $prefix=&catalogmode_output($Fields{'title'},$Fields{'url'}, |
|
$Fields{'id'},$checkbox_num++); |
|
# Render the result into html |
|
$output.= &$viewfunction($prefix,%Fields); |
|
# Print them out as they come in. |
|
$r->print($output); |
|
$r->rflush(); |
|
} |
|
if (@Results < 1) { |
|
$r->print(&mt("There were no results matching your query")); |
|
} else { |
|
$r->print |
|
('<center>'. |
|
&prev_next_buttons($min,$env{'form.show'},$total_results, |
|
"table=".$env{'form.table'}. |
|
"&phase=results". |
|
"&persistent_db_id=". |
|
$env{'form.persistent_db_id'}) |
|
."</center>\n" |
|
); |
|
} |
|
$r->print("</form>".&Apache::loncommon::end_page()); |
|
$r->rflush(); |
|
untie %groupsearch_db if (tied(%groupsearch_db)); |
|
return; |
|
} |
|
|
|
###################################################################### |
|
###################################################################### |
|
|
|
=pod |
|
|
|
=item &catalogmode_output($title,$url,$fnum,$checkbox_num) |
|
|
|
Returns html needed for the various catalog modes. Gets inputs from |
|
$env{'form.catalogmode'}. Stores data in %groupsearch_db. |
|
|
|
=cut |
|
|
|
###################################################################### |
|
###################################################################### |
|
sub catalogmode_output { |
|
my $output = ''; |
|
my ($title,$url,$fnum,$checkbox_num) = @_; |
|
if ($env{'form.catalogmode'} eq 'interactive') { |
|
$title=~ s/\'/\\\'/g; |
|
if ($env{'form.catalogmode'} eq 'interactive') { |
|
$output.=<<END |
<font size='-1'><INPUT TYPE="button" NAME="returnvalues" VALUE="SELECT" |
<font size='-1'><INPUT TYPE="button" NAME="returnvalues" VALUE="SELECT" |
onClick="javascript:select_data('$title','$url')"> |
onClick="javascript:select_data('$title','$url')"> |
</font> |
</font> |
<br> |
|
END |
END |
my $httphost=$ENV{'HTTP_HOST'}; |
} |
|
} elsif ($env{'form.catalogmode'} eq 'import') { |
|
$groupsearch_db{"pre_${fnum}_link"}=$url; |
|
$groupsearch_db{"pre_${fnum}_title"}=$title; |
|
$output.=<<END; |
|
<font size='-1'> |
|
<input type="checkbox" name="returnvalues" value="SELECT" |
|
onClick="javascript:queue($checkbox_num,$fnum)" /> |
|
</font> |
|
END |
|
} |
|
return $output; |
|
} |
|
###################################################################### |
|
###################################################################### |
|
|
|
=pod |
|
|
|
=item &parse_row() |
|
|
|
Parse a row returned from the database. |
|
|
|
=cut |
|
|
|
###################################################################### |
|
###################################################################### |
|
sub parse_row { |
|
my @Row = @_; |
|
my %Fields; |
|
if (! scalar(@Datatypes)) { |
|
&set_up_table_structure(); |
|
} |
|
for (my $i=0;$i<=$#Row;$i++) { |
|
$Fields{$Datatypes[$i]->{'name'}}=&unescape($Row[$i]); |
|
} |
|
$Fields{'language'} = |
|
&Apache::loncommon::languagedescription($Fields{'language'}); |
|
$Fields{'copyrighttag'} = |
|
&Apache::loncommon::copyrightdescription($Fields{'copyright'}); |
|
$Fields{'mimetag'} = |
|
&Apache::loncommon::filedescription($Fields{'mime'}); |
|
return \%Fields; |
|
} |
|
|
|
########################################################### |
|
########################################################### |
|
|
|
=pod |
|
|
|
=item &parse_raw_result() |
|
|
|
Takes a line from the file of results and parse it. Returns a hash |
|
with keys according to column labels |
|
|
|
In addition, the following tags are set by calling the appropriate |
|
lonnet function: 'language', 'copyrighttag', 'mimetag'. |
|
|
|
The 'title' field is set to "Untitled" if the title field is blank. |
|
|
|
'abstract' and 'keywords' are truncated to 200 characters. |
|
|
my $viewselect; |
=cut |
if ($mode eq 'Basic') { |
|
$viewselect=$ENV{'form.basicviewselect'}; |
|
} |
|
elsif ($mode eq 'Advanced') { |
|
$viewselect=$ENV{'form.advancedviewselect'}; |
|
} |
|
|
|
if ($viewselect eq 'Detailed Citation View') { |
|
$compiledresult.=&detailed_citation_view(@fields, |
|
$hostname,$httphost); |
|
} |
|
elsif ($viewselect eq 'Summary View') { |
|
$compiledresult.=&summary_view(@fields,$hostname,$httphost); |
|
} |
|
elsif ($viewselect eq 'Fielded Format') { |
|
$compiledresult.=&fielded_format_view(@fields,$hostname, |
|
$httphost); |
|
} |
|
elsif ($viewselect eq 'XML/SGML') { |
|
$compiledresult.=&xml_sgml_view(@fields,$hostname,$httphost); |
|
} |
|
|
|
|
########################################################### |
|
########################################################### |
|
sub parse_raw_result { |
|
my ($result,$hostname) = @_; |
|
# conclude from self to others regarding fields |
|
my %Fields=&LONCAPA::lonmetadata::metadata_col_to_hash |
|
(map { |
|
&unescape($_); |
|
} (split(/\,/,$result)) ); |
|
return %Fields; |
|
} |
|
|
|
########################################################### |
|
########################################################### |
|
|
|
=pod |
|
|
|
=item &handle_custom_fields() |
|
|
|
=cut |
|
|
|
########################################################### |
|
########################################################### |
|
sub handle_custom_fields { |
|
my @results = @{shift()}; |
|
my $customshow=''; |
|
my $extrashow=''; |
|
my @customfields; |
|
if ($env{'form.customshow'}) { |
|
$customshow=$env{'form.customshow'}; |
|
$customshow=~s/[^\w\s]//g; |
|
my @fields=map { |
|
"<font color=\"#008000\">$_:</font><!-- $_ -->"; |
|
} split(/\s+/,$customshow); |
|
@customfields=split(/\s+/,$customshow); |
|
if ($customshow) { |
|
$extrashow="<ul><li>".join("</li><li>",@fields)."</li></ul>\n"; |
|
} |
|
} |
|
my $customdata=''; |
|
my %customhash; |
|
foreach my $result (@results) { |
|
if ($result=~/^(custom\=.*)$/) { # grab all custom metadata |
|
my $tmp=$result; |
|
$tmp=~s/^custom\=//; |
|
my ($k,$v)=map {&unescape($_); |
|
} split(/\,/,$tmp); |
|
$customhash{$k}=$v; |
} |
} |
|
} |
|
return ($extrashow,\@customfields,\%customhash); |
|
} |
|
|
unless ($compiledresult) { |
###################################################################### |
$compiledresult="There were no results that matched your query"; |
###################################################################### |
} |
|
|
=pod |
|
|
|
=item &search_results_header() |
|
|
|
Output the proper html headers and javascript code to deal with different |
|
calling modes. |
|
|
|
Takes most inputs directly from %env, except $mode. |
|
|
|
=over 4 |
|
|
|
=item $mode is either (at this writing) 'Basic' or 'Advanced' |
|
|
|
=back |
|
|
|
The following environment variables are checked: |
|
|
# make query information persistent to allow for subsequent revision |
=over 4 |
my $persistent=&make_persistent(); |
|
|
|
$r->print(<<BEGINNING); |
=item 'form.catalogmode' |
<html> |
|
<head> |
Checked for 'interactive' and 'import'. |
<title>The LearningOnline Network with CAPA</title> |
|
BEGINNING |
=item 'form.mode' |
$r->print(<<SCRIPT) if $ENV{'form.catalogmode'} eq 'interactive'; |
|
<script> |
Checked for existance & 'edit' mode. |
|
|
|
=item 'form.form' |
|
|
|
Contains the name of the form that has the input fields to set |
|
|
|
=item 'form.element' |
|
|
|
the name of the input field to put the URL into |
|
|
|
=item 'form.titleelement' |
|
|
|
the name of the input field to put the title into |
|
|
|
=back |
|
|
|
=cut |
|
|
|
###################################################################### |
|
###################################################################### |
|
sub search_results_header { |
|
my ($importbutton,$closebutton) = @_; |
|
|
|
my $js; |
|
# output beginning of search page |
|
# conditional output of script functions dependent on the mode in |
|
# which the search was invoked |
|
if ($env{'form.catalogmode'} eq 'interactive'){ |
|
if (! exists($env{'form.mode'}) || $env{'form.mode'} ne 'edit') { |
|
$js.=<<SCRIPT; |
|
<script type="text/javascript"> |
function select_data(title,url) { |
function select_data(title,url) { |
changeTitle(title); |
changeTitle(title); |
changeURL(url); |
changeURL(url); |
|
parent.close(); |
} |
} |
function changeTitle(val) { |
function changeTitle(val) { |
if (opener.inf.document.forms.resinfo.elements.t) { |
if (parent.opener.inf.document.forms.resinfo.elements.t) { |
opener.inf.document.forms.resinfo.elements.t.value=val; |
parent.opener.inf.document.forms.resinfo.elements.t.value=val; |
} |
} |
} |
} |
function changeURL(val) { |
function changeURL(val) { |
if (opener.inf.document.forms.resinfo.elements.u) { |
if (parent.opener.inf.document.forms.resinfo.elements.u) { |
opener.inf.document.forms.resinfo.elements.u.value=val; |
parent.opener.inf.document.forms.resinfo.elements.u.value=val; |
} |
} |
} |
} |
</script> |
</script> |
SCRIPT |
SCRIPT |
$r->print(<<RESULTS); |
} elsif ($env{'form.mode'} eq 'edit') { |
</head> |
my $form = $env{'form.form'}; |
<body bgcolor="#ffffff"> |
my $element = $env{'form.element'}; |
<img align=right src=/adm/lonIcons/lonlogos.gif> |
my $titleelement = $env{'form.titleelement'}; |
<h1>Search Catalog</h1> |
my $changetitle; |
<form method="post" action="/adm/searchcat"> |
if (!$titleelement) { |
<input type='button' value='Revise search request' |
$changetitle='function changeTitle(val) {}'; |
onClick='this.form.submit();'> |
} else { |
$closebutton |
$changetitle=<<END; |
$persistent |
function changeTitle(val) { |
<hr> |
if (parent.targetwin.document) { |
<h3>Search Query</h3> |
parent.targetwin.document.forms["$form"].elements["$titleelement"].value=val; |
RESULTS |
} else { |
if ($mode eq 'Basic') { |
var url = 'forms[\"$form\"].elements[\"$titleelement\"].value'; |
$r->print(<<RESULTS); |
alert("Unable to transfer data to "+url); |
<p> |
|
<b>Basic search:</b> $ENV{'form.basicexp'} |
|
</p> |
|
RESULTS |
|
} |
} |
elsif ($mode eq 'Advanced') { |
} |
$r->print(<<RESULTS); |
END |
<p> |
} |
<b>Advanced search</b> |
|
$query |
$js.=<<SCRIPT; |
</p> |
<script type="text/javascript"> |
RESULTS |
function select_data(title,url) { |
|
changeURL(url); |
|
changeTitle(title); |
|
parent.close(); |
|
} |
|
$changetitle |
|
function changeURL(val) { |
|
if (parent.targetwin.document) { |
|
parent.targetwin.document.forms["$form"].elements["$element"].value=val; |
|
} else { |
|
var url = 'forms[\"$form\"].elements[\"$element\"].value'; |
|
alert("Unable to transfer data to "+url); |
} |
} |
$r->print(<<RESULTS); |
} |
<h3>Search Results</h3> |
</script> |
$compiledresult |
SCRIPT |
</body> |
} |
</html> |
} |
RESULTS |
$js.=<<SCRIPT if $env{'form.catalogmode'} eq 'import'; |
|
<script type="text/javascript"> |
|
function queue(checkbox_num,val) { |
|
if (document.forms.results.returnvalues.length != "undefined" && |
|
typeof(document.forms.results.returnvalues.length) == "number") { |
|
if (document.forms.results.returnvalues[checkbox_num].checked) { |
|
parent.statusframe.document.forms.statusform.elements.acts.value +='1a'+val+'b'; |
|
} else { |
|
parent.statusframe.document.forms.statusform.elements.acts.value +='0a'+val+'b'; |
|
} |
|
} else { |
|
if (document.forms.results.returnvalues.checked) { |
|
parent.statusframe.document.forms.statusform.elements.acts.value +='1a'+val+'b'; |
|
} else { |
|
parent.statusframe.document.forms.statusform.elements.acts.value +='0a'+val+'b'; |
|
} |
|
} |
} |
} |
|
function select_group() { |
|
parent.window.location= |
|
"/adm/groupsort?mode=$env{'form.mode'}&catalogmode=import&acts="+ |
|
parent.statusframe.document.forms.statusform.elements.acts.value; |
|
} |
|
</script> |
|
SCRIPT |
|
|
|
my $start_page = &Apache::loncommon::start_page(undef,$js, |
|
{'only_body' =>1}); |
|
my $result=<<END; |
|
$start_page |
|
<form name="results" method="post" action="/adm/searchcat"> |
|
$importbutton |
|
END |
|
return $result; |
} |
} |
|
|
# ------------------------------------------------------------- build_SQL_query |
sub results_link { |
sub build_SQL_query { |
my $basic_link = "/adm/searchcat?"."&table=".$env{'form.table'}. |
my ($field_name,$logic_statement)=@_; |
"&persistent_db_id=".$env{'form.persistent_db_id'}; |
my $q=new Text::Query('abc', |
my $results_link = $basic_link."&phase=results". |
-parse => 'Text::Query::ParseAdvanced', |
"&pause=1"."&start=1"; |
-build => 'Text::Query::Build'); |
return $results_link; |
$q->prepare($logic_statement); |
|
my $matchexp=${$q}{'matchexp'}; chomp $matchexp; |
|
my $sql_query=&recursive_SQL_query_build($field_name,$matchexp); |
|
return $sql_query; |
|
} |
} |
|
|
# ------------------------------------------------- build custom metadata query |
###################################################################### |
sub build_custommetadata_query { |
###################################################################### |
my ($field_name,$logic_statement)=@_; |
sub print_frames_interface { |
my $q=new Text::Query('abc', |
my $r = shift; |
-parse => 'Text::Query::ParseAdvanced', |
my $basic_link = "/adm/searchcat?"."&table=".$env{'form.table'}. |
-build => 'Text::Query::BuildAdvancedString'); |
"&persistent_db_id=".$env{'form.persistent_db_id'}; |
$q->prepare($logic_statement); |
my $run_search_link = $basic_link."&phase=run_search"; |
my $matchexp=${$q}{'-parse'}{'-build'}{'matchstring'}; |
my $results_link = &results_link(); |
return $matchexp; |
my $js = <<JS; |
|
<script type="text/javascript"> |
|
var targetwin = opener; |
|
var queue = ''; |
|
</script> |
|
JS |
|
|
|
my $start_page = |
|
&Apache::loncommon::start_page('LON-CAPA Digital Library Search Results', |
|
$js, |
|
{'frameset' => 1, |
|
'add_entries' => { |
|
'rows' => "150,*",},}); |
|
my $end_page = |
|
&Apache::loncommon::end_page({'frameset' => 1}); |
|
|
|
my $result = <<"ENDFRAMES"; |
|
$start_page |
|
<frame name="statusframe" src="$run_search_link"> |
|
<frame name="resultsframe" src="$results_link"> |
|
$end_page |
|
ENDFRAMES |
|
|
|
$r->print($result); |
|
return; |
} |
} |
|
|
# - Recursively parse a reverse notation expression into a SQL query expression |
###################################################################### |
sub recursive_SQL_query_build { |
###################################################################### |
my ($dkey,$pattern)=@_; |
|
my @matches=($pattern=~/(\[[^\]|\[]*\])/g); |
sub has_stat_data { |
return $pattern unless @matches; |
my ($values) = @_; |
foreach my $match (@matches) { |
if ( (defined($values->{'count'}) && $values->{'count'} ne '') || |
$match=~/\[ (\w+)\s(.*) \]/; |
(defined($values->{'stdno'}) && $values->{'stdno'} ne '') || |
my ($key,$value)=($1,$2); |
(defined($values->{'disc'}) && $values->{'disc'} ne '') || |
my $replacement=''; |
(defined($values->{'avetries'}) && $values->{'avetries'} ne '') || |
if ($key eq 'literal') { |
(defined($values->{'difficulty'}) && $values->{'difficulty'} ne '')) { |
$replacement="($dkey like \"\%$value\%\")"; |
return 1; |
} |
} |
elsif ($key eq 'and') { |
return 0; |
$value=~/(.*[\"|\)]) ([|\(|\^].*)/; |
} |
$replacement="($1 AND $2)"; |
|
} |
sub statfields { |
elsif ($key eq 'or') { |
return ('count','stdno','disc','avetries','difficulty'); |
$value=~/(.*[\"|\)]) ([|\(|\^].*)/; |
} |
$replacement="($1 OR $2)"; |
|
} |
sub has_eval_data { |
substr($pattern, |
my ($values) = @_; |
index($pattern,$match), |
if ( (defined($values->{'clear'}) && $values->{'clear'} ne '') || |
length($match), |
(defined($values->{'technical'}) && $values->{'technical'} ne '') || |
$replacement |
(defined($values->{'correct'}) && $values->{'correct'} ne '') || |
); |
(defined($values->{'helpful'}) && $values->{'helpful'} ne '') || |
|
(defined($values->{'depth'}) && $values->{'depth'} ne '')) { |
|
return 1; |
} |
} |
&recursive_SQL_query_build($dkey,$pattern); |
return 0; |
|
} |
|
|
|
sub evalfields { |
|
return ('clear','technical','correct','helpful','depth'); |
} |
} |
|
|
# ------------------------------------------------------ Detailed Citation View |
###################################################################### |
|
###################################################################### |
|
|
|
=pod |
|
|
|
=item Metadata Viewing Functions |
|
|
|
Output is a HTML-ified string. |
|
|
|
Input arguments are title, author, subject, url, keywords, version, |
|
notes, short abstract, mime, language, creation date, |
|
last revision date, owner, copyright, hostname, and |
|
extra custom metadata to show. |
|
|
|
=over 4 |
|
|
|
=item &detailed_citation_view() |
|
|
|
=cut |
|
|
|
###################################################################### |
|
###################################################################### |
sub detailed_citation_view { |
sub detailed_citation_view { |
my ($title,$author,$subject,$url,$keywords,$version, |
my ($prefix,%values) = @_; |
$notes,$shortabstract,$mime,$lang, |
my $result; |
$creationdate,$lastrevisiondate,$owner,$copyright, |
my $jumpurl=$values{'url'}; |
$hostname,$httphost)=@_; |
$jumpurl=~s/^\/ext\//http\:\/\//; |
my $result=<<END; |
$result .= '<b>'.$prefix. |
<i>$owner</i>, last revised $lastrevisiondate |
'<img src="'.&Apache::loncommon::icon($values{'url'}).'" />'.' '. |
<h3><A HREF="http://$httphost$url" TARGET='search_preview'>$title</A></h3> |
'<a href="'.$jumpurl.'" '. |
<h3>$author</h3> |
'target="preview">'.$values{'title'}."</a></b>\n"; |
</p> |
$result .= "<p>\n"; |
<p> |
$result .= '<b>'.$values{'author'}.'</b>,'. |
<b>Subject:</b> $subject<br> |
' <i>'.$values{'owner'}.'</i><br />'; |
<b>Keyword(s):</b> $keywords<br> |
foreach my $field |
<b>Notes:</b> $notes<br> |
( |
<b>MIME Type:</b> $mimetag{$mime}<br> |
{ name=>'url', |
<b>Language:</b> $language{$lang}<br> |
translate => '<b>URL:</b> [_1]', |
<b>Copyright/Distribution:</b> $cprtag{$copyright}<br> |
special => 'url link',}, |
$shortabstract |
{ name=>'subject', |
</p> |
translate => '<b>Subject:</b> [_1]',}, |
END |
{ name=>'keywords', |
|
translate => '<b>Keywords:</b> [_1]',}, |
|
{ name=>'notes', |
|
translate => '<b>Notes:</b> [_1]',}, |
|
{ name=>'mimetag', |
|
translate => '<b>MIME Type:</b> [_1]',}, |
|
{ name=>'standards', |
|
translate => '<b>Standards:</b>[_1]',}, |
|
{ name=>'copyrighttag', |
|
translate => '<b>Copyright/Distribution:</b> [_1]',}, |
|
{ name=>'count', |
|
format => "%d", |
|
translate => '<b>Access Count:</b> [_1]',}, |
|
{ name=>'stdno', |
|
format => "%d", |
|
translate => '<b>Number of Students:</b> [_1]',}, |
|
{ name=>'avetries', |
|
format => "%.2f", |
|
translate => '<b>Average Tries:</b> [_1]',}, |
|
{ name=>'disc', |
|
format => "%.2f", |
|
translate => '<b>Degree of Discrimination:</b> [_1]',}, |
|
{ name=>'difficulty', |
|
format => "%.2f", |
|
translate => '<b>Degree of Difficulty:</b> [_1]',}, |
|
{ name=>'clear', |
|
format => "%.2f", |
|
translate => '<b>Clear:</b> [_1]',}, |
|
{ name=>'depth', |
|
format => "%.2f", |
|
translate => '<b>Depth:</b> [_1]',}, |
|
{ name=>'helpful', |
|
format => "%.2f", |
|
translate => '<b>Helpful:</b> [_1]',}, |
|
{ name=>'correct', |
|
format => "%.2f", |
|
translate => '<b>Correct:</b> [_1]',}, |
|
{ name=>'technical', |
|
format => "%.2f", |
|
translate => '<b>Technical:</b> [_1]',}, |
|
{ name=>'comefrom_list', |
|
type => 'list', |
|
translate => 'Resources that lead up to this resource in maps',}, |
|
{ name=>'goto_list', |
|
type => 'list', |
|
translate => 'Resources that follow this resource in maps',}, |
|
{ name=>'sequsage_list', |
|
type => 'list', |
|
translate => 'Resources using or importing resource',}, |
|
) { |
|
next if (! exists($values{$field->{'name'}}) || |
|
$values{$field->{'name'}} eq ''); |
|
if (exists($field->{'type'}) && $field->{'type'} eq 'list') { |
|
$result .= '<b>'.&mt($field->{'translate'}).'</b>'; |
|
foreach my $item (split(',',$values{$field->{'name'}})){ |
|
$result .= |
|
&Apache::lonhtmlcommon::crumbs(&Apache::lonnet::clutter($item), |
|
'preview', |
|
'', |
|
(($env{'form.catalogmode'} eq 'import')?'parent.statusframe.document.forms.statusform':''),2,0,1); |
|
} |
|
} elsif (exists($field->{'format'}) && $field->{'format'} ne ''){ |
|
$result.= &mt($field->{'translate'}, |
|
sprintf($field->{'format'}, |
|
$values{$field->{'name'}}))."<br />\n"; |
|
} else { |
|
if ($field->{'special'} eq 'url link') { |
|
if ($jumpurl=~/^http\:\/\//) { |
|
$result.='<tt>'.$jumpurl.'</tt>'; |
|
} else { |
|
$result .= |
|
&Apache::lonhtmlcommon::crumbs($jumpurl, |
|
'preview', |
|
'', |
|
(($env{'form.catalogmode'} eq 'import')?'parent.statusframe.document.forms.statusform':''),3,0,1); |
|
} |
|
} else { |
|
$result.= &mt($field->{'translate'}, |
|
$values{$field->{'name'}}); |
|
} |
|
$result .= "<br />\n"; |
|
} |
|
} |
|
$result .= "</p>"; |
|
if (exists($values{'extrashow'}) && $values{'extrashow'} ne '') { |
|
$result .= '<p>'.$values{'extrashow'}.'</p>'; |
|
} |
|
if (exists($values{'shortabstract'}) && $values{'shortabstract'} ne '') { |
|
$result .= '<p>'.$values{'shortabstract'}.'</p>'; |
|
} |
|
$result .= '<hr align="left" width="200" noshade />'."\n"; |
return $result; |
return $result; |
} |
} |
|
|
# ---------------------------------------------------------------- Summary View |
sub detailed_citation_preview { |
|
my ($prefix,%values)=@_; |
|
return '<table><tr><td>'. |
|
&detailed_citation_view($prefix,%values). |
|
'</td><td>'. |
|
&Apache::lonindexer::showpreview($values{'url'}). |
|
'</td></tr></table><hr />'; |
|
} |
|
|
|
|
|
###################################################################### |
|
###################################################################### |
|
|
|
=pod |
|
|
|
=item &summary_view() |
|
|
|
=cut |
|
###################################################################### |
|
###################################################################### |
sub summary_view { |
sub summary_view { |
my ($title,$author,$subject,$url,$keywords,$version, |
my ($prefix,%values) = @_; |
$notes,$shortabstract,$mime,$lang, |
my $icon=&Apache::loncommon::icon($values{'url'}); |
$creationdate,$lastrevisiondate,$owner,$copyright, |
my $result=qq{$prefix<img src="$icon" />}; |
$hostname,$httphost)=@_; |
if (exists($env{'form.sortfield'}) && |
my $result=<<END; |
$env{'form.sortfield'} !~ /^(default| |
<a href="http://$httphost$url" TARGET='search_preview'>$author</a><br /> |
author| |
$title<br /> |
url| |
$owner -- $lastrevisiondate<br /> |
title| |
$cprtag{$copyright}<br /> |
owner| |
|
lastrevisiondate| |
|
copyright)$/x) { |
|
my $tmp = $values{$env{'form.sortfield'}}; |
|
if (! defined($tmp)) { $tmp = 'undefined'; } |
|
$result .= ' '.$tmp.' '; |
|
} |
|
my $jumpurl=$values{'url'}; |
|
my $link; |
|
if ($jumpurl=~/^\/ext\//) { |
|
$jumpurl=~s/^\/ext\//http\:\/\//; |
|
$link='<br /><tt>'.$jumpurl.'</tt>'; |
|
} else { |
|
$link=&Apache::lonhtmlcommon::crumbs($jumpurl, |
|
'preview', |
|
'', |
|
(($env{'form.catalogmode'} eq 'import')?'parent.statusframe.document.forms.statusform':''),2,0,1); |
|
} |
|
$result.=<<END; |
|
<a href="$jumpurl" |
|
target='preview'>$values{'title'}</a>$link |
|
$values{'author'}, $values{'owner'} -- $values{'lastrevisiondate'}<br /> |
|
$values{'copyrighttag'}<br /> |
|
$values{'extrashow'} |
</p> |
</p> |
|
<hr align='left' width='200' noshade /> |
END |
END |
return $result; |
return $result; |
} |
} |
|
|
# -------------------------------------------------------------- Fielded Format |
sub summary_preview { |
|
my ($prefix,%values)=@_; |
|
return '<table><tr><td>'. |
|
&summary_view($prefix,%values). |
|
'</td><td>'. |
|
&Apache::lonindexer::showpreview($values{'url'}). |
|
'</td></tr></table><hr />'; |
|
} |
|
|
|
###################################################################### |
|
###################################################################### |
|
|
|
=pod |
|
|
|
=item &compact_view() |
|
|
|
=cut |
|
|
|
###################################################################### |
|
###################################################################### |
|
sub compact_view { |
|
my ($prefix,%values) = @_; |
|
my $jumpurl=$values{'url'}; |
|
my $link; |
|
if ($jumpurl=~/^\/ext\//) { |
|
$jumpurl=~s/^\/ext\//http\:\/\//; |
|
$link='<tt>'.$jumpurl.'</tt>'; |
|
} else { |
|
$link=&Apache::lonhtmlcommon::crumbs($jumpurl, |
|
'preview', |
|
'', |
|
(($env{'form.catalogmode'} eq 'import')?'parent.statusframe.document.forms.statusform':''),1,1,1).' '; |
|
} |
|
my $result = |
|
$prefix.'<img src="'.&Apache::loncommon::icon($values{'url'}).'">'; |
|
if (exists($env{'form.sortfield'}) && |
|
$env{'form.sortfield'} !~ /^(default|author|url|title)$/) { |
|
my $tmp = $values{$env{'form.sortfield'}}; |
|
if (! defined($tmp)) { $tmp = 'undefined'; } |
|
$result .= ' '.$tmp.' '; |
|
} |
|
$result.=' <a href="'.$jumpurl.'" target="preview">'. |
|
$values{'title'}.'</a>'.(' 'x2).$link. |
|
'<b>'.$values{'author'}.'</b> ('.$values{'domain'}.')<br />'; |
|
return $result; |
|
} |
|
|
|
|
|
###################################################################### |
|
###################################################################### |
|
|
|
=pod |
|
|
|
=item &fielded_format_view() |
|
|
|
=cut |
|
|
|
###################################################################### |
|
###################################################################### |
sub fielded_format_view { |
sub fielded_format_view { |
my ($title,$author,$subject,$url,$keywords,$version, |
my ($prefix,%values) = @_; |
$notes,$shortabstract,$mime,$lang, |
my $icon=&Apache::loncommon::icon($values{'url'}); |
$creationdate,$lastrevisiondate,$owner,$copyright, |
my %Translated = &Apache::lonmeta::fieldnames(); |
$hostname,$httphost)=@_; |
my $jumpurl=$values{'url'}; |
|
$jumpurl=~s/^\/ext\//http\:\/\//; |
|
|
my $result=<<END; |
my $result=<<END; |
<b>URL: </b> <A HREF="http://$httphost$url" TARGET='search_preview'>$url</A> |
$prefix <img src="$icon" /> |
<br /> |
<dl> |
<b>Title:</b> $title<br /> |
<dt>URL:</dt> |
<b>Author(s):</b> $author<br /> |
<dd><a href="$jumpurl" |
<b>Subject:</b> $subject<br /> |
target='preview'>$values{'url'}</a></dd> |
<b>Keyword(s):</b> $keywords<br /> |
|
<b>Notes:</b> $notes<br /> |
|
<b>MIME Type:</b> $mimetag{$mime}<br /> |
|
<b>Language:</b> $language{$lang}<br /> |
|
<b>Creation Date:</b> $creationdate<br /> |
|
<b>Last Revision Date:</b> $lastrevisiondate<br /> |
|
<b>Publisher/Owner:</b> $owner<br /> |
|
<b>Copyright/Distribution:</b> $cprtag{$copyright}<br /> |
|
<b>Repository Location:</b> $hostname<br /> |
|
<b>Abstract:</b> $shortabstract<br /> |
|
</p> |
|
END |
END |
|
foreach my $field ('title','author','domain','subject','keywords','notes', |
|
'mimetag','language','creationdate','lastrevisiondate', |
|
'owner','copyrighttag','hostname','abstract') { |
|
$result .= (' 'x4).'<dt>'.$Translated{$field}.'</dt>'."\n". |
|
(' 'x8).'<dd>'.$values{$field}.'</dd>'."\n"; |
|
} |
|
if (&has_stat_data(\%values)) { |
|
foreach my $field (&statfields()) { |
|
$result .= (' 'x4).'<dt>'.$Translated{$field}.'</dt>'."\n". |
|
(' 'x8).'<dd>'.$values{$field}.'</dd>'."\n"; |
|
} |
|
} |
|
if (&has_eval_data(\%values)) { |
|
foreach my $field (&evalfields()) { |
|
$result .= (' 'x4).'<dt>'.$Translated{$field}.'</dt>'."\n". |
|
(' 'x8).'<dd>'.$values{$field}.'</dd>'."\n"; |
|
} |
|
} |
|
$result .= "</dl>\n"; |
|
$result .= $values{'extrashow'}; |
|
$result .= '<hr align="left" width="200" noshade />'."\n"; |
return $result; |
return $result; |
} |
} |
|
|
# -------------------------------------------------------------------- XML/SGML |
###################################################################### |
|
###################################################################### |
|
|
|
=pod |
|
|
|
=item &xml_sgml_view() |
|
|
|
=back |
|
|
|
=cut |
|
|
|
###################################################################### |
|
###################################################################### |
sub xml_sgml_view { |
sub xml_sgml_view { |
my ($title,$author,$subject,$url,$keywords,$version, |
my ($prefix,%values) = @_; |
$notes,$shortabstract,$mime,$lang, |
my $xml = '<LonCapaResource>'."\n"; |
$creationdate,$lastrevisiondate,$owner,$copyright, |
# The usual suspects |
$hostname,$httphost)=@_; |
foreach my $field ('url','title','author','subject','keywords','notes','domain') { |
|
$xml .= qq{<$field>$values{$field}</$field>}."\n"; |
|
} |
|
# |
|
$xml .= "<mimeInfo>\n"; |
|
foreach my $field ('mime','mimetag') { |
|
$xml .= qq{<$field>$values{$field}</$field>}."\n"; |
|
} |
|
$xml .= "</mimeInfo>\n"; |
|
# |
|
$xml .= "<languageInfo>\n"; |
|
foreach my $field ('language','languagetag') { |
|
$xml .= qq{<$field>$values{$field}</$field>}."\n"; |
|
} |
|
$xml .= "</languageInfo>\n"; |
|
# |
|
foreach my $field ('creationdate','lastrevisiondate','owner') { |
|
$xml .= qq{<$field>$values{$field}</$field>}."\n"; |
|
} |
|
# |
|
$xml .= "<copyrightInfo>\n"; |
|
foreach my $field ('copyright','copyrighttag') { |
|
$xml .= qq{<$field>$values{$field}</$field>}."\n"; |
|
} |
|
$xml .= "</copyrightInfo>\n"; |
|
$xml .= qq{<repositoryLocation>$values{'hostname'}</repositoryLocation>}. |
|
"\n"; |
|
$xml .= qq{<shortabstract>$values{'shortabstract'}</shortabstract>}."\n"; |
|
# |
|
if (&has_stat_data(\%values)){ |
|
$xml .= "<problemstatistics>\n"; |
|
foreach my $field (&statfields()) { |
|
$xml .= qq{<$field>$values{$field}</$field>}."\n"; |
|
} |
|
$xml .= "</problemstatistics>\n"; |
|
} |
|
# |
|
if (&has_eval_data(\%values)) { |
|
$xml .= "<evaluation>\n"; |
|
foreach my $field (&evalfields) { |
|
$xml .= qq{<$field>$values{$field}</$field>}."\n"; |
|
} |
|
$xml .= "</evaluation>\n"; |
|
} |
|
# |
|
$xml .= "</LonCapaResource>\n"; |
|
$xml = &HTML::Entities::encode($xml,'<>&'); |
my $result=<<END; |
my $result=<<END; |
|
$prefix |
<pre> |
<pre> |
<LonCapaResource> |
$xml |
<url>$url</url> |
|
<title>$title</title> |
|
<author>$author</author> |
|
<subject>$subject</subject> |
|
<keywords>$keywords</keywords> |
|
<notes>$notes</notes> |
|
<mimeInfo> |
|
<mime>$mime</mime> |
|
<mimetag>$mimetag{$mime}</mimetag> |
|
</mimeInfo> |
|
<languageInfo> |
|
<language>$lang</language> |
|
<languagetag>$language{$lang}</languagetag> |
|
</languageInfo> |
|
<creationdate>$creationdate</creationdate> |
|
<lastrevisiondate>$lastrevisiondate</lastrevisiondate> |
|
<owner>$owner</owner> |
|
<copyrightInfo> |
|
<copyright>$copyright</copyright> |
|
<copyrighttag>$cprtag{$copyright}</copyrighttag> |
|
</copyrightInfo> |
|
<repositoryLocation>$hostname</repositoryLocation> |
|
<shortabstract>$shortabstract</shortabstract> |
|
</LonCapaResource> |
|
</pre> |
</pre> |
|
$values{'extrashow'} |
|
<hr align='left' width='200' noshade /> |
END |
END |
return $result; |
return $result; |
} |
} |
|
|
sub build_date_queries { |
###################################################################### |
my ($cmonth1,$cday1,$cyear1,$cmonth2,$cday2,$cyear2, |
###################################################################### |
$lmonth1,$lday1,$lyear1,$lmonth2,$lday2,$lyear2)=@_; |
|
my @queries; |
=pod |
if ($cmonth1 or $cday1 or $cyear1 or $cmonth2 or $cday2 or $cyear2) { |
|
unless ($cmonth1 and $cday1 and $cyear1 and |
=item &filled() see if field is filled. |
$cmonth2 and $cday2 and $cyear2) { |
|
return "Incorrect entry for the creation date. You must specify ". |
=cut |
"a starting month, day, and year and an ending month, ". |
|
"day, and year."; |
###################################################################### |
} |
###################################################################### |
my $cnumeric1=sprintf("%d%2d%2d",$cyear1,$cmonth1,$cday1); |
sub filled { |
$cnumeric1+=0; |
my ($field)=@_; |
my $cnumeric2=sprintf("%d%2d%2d",$cyear2,$cmonth2,$cday2); |
if ($field=~/\S/ && $field ne 'any') { |
$cnumeric2+=0; |
return 1; |
if ($cnumeric1>$cnumeric2) { |
} else { |
return "Incorrect entry for the creation date. The starting ". |
return 0; |
"date must occur before the ending date."; |
|
} |
|
my $cquery="(creationdate BETWEEN '$cyear1-$cmonth1-$cday1' AND '". |
|
"$cyear2-$cmonth2-$cday2 23:59:59')"; |
|
push @queries,$cquery; |
|
} |
|
if ($lmonth1 or $lday1 or $lyear1 or $lmonth2 or $lday2 or $lyear2) { |
|
unless ($lmonth1 and $lday1 and $lyear1 and |
|
$lmonth2 and $lday2 and $lyear2) { |
|
return "Incorrect entry for the last revision date. You must ". |
|
"specify a starting month, day, and year and an ending ". |
|
"month, day, and year."; |
|
} |
|
my $lnumeric1=sprintf("%d%2d%2d",$lyear1,$lmonth1,$lday1); |
|
$lnumeric1+=0; |
|
my $lnumeric2=sprintf("%d%2d%2d",$lyear2,$lmonth2,$lday2); |
|
$lnumeric2+=0; |
|
if ($lnumeric1>$lnumeric2) { |
|
return "Incorrect entry for the last revision date. The ". |
|
"starting date must occur before the ending date."; |
|
} |
|
my $lquery="(lastrevisiondate BETWEEN '$lyear1-$lmonth1-$lday1' AND '". |
|
"$lyear2-$lmonth2-$lday2 23:59:59')"; |
|
push @queries,$lquery; |
|
} |
} |
if (@queries) { |
} |
return join(" AND ",@queries); |
|
|
###################################################################### |
|
###################################################################### |
|
|
|
=pod |
|
|
|
=item &output_unparsed_phrase_error() |
|
|
|
=cut |
|
|
|
###################################################################### |
|
###################################################################### |
|
sub output_unparsed_phrase_error { |
|
my ($r,$closebutton,$parms,$hidden_fields,$field)=@_; |
|
my $errorstring; |
|
if ($field eq 'basicexp') { |
|
$errorstring = &mt('Unable to understand the search phrase <i>[_1]</i>. Please modify your search.',$env{'form.basicexp'}); |
|
} else { |
|
$errorstring = &mt('Unable to understand the search phrase <b>[_1]</b>:<i>[_2]</i>.',$field,$env{'form.'.$field}); |
} |
} |
return ''; |
my $heading = &mt('Unparsed Field'); |
|
my $revise = &mt('Revise search request'); |
|
# make query information persistent to allow for subsequent revision |
|
my $start_page = &Apache::loncommon::start_page('Search'); |
|
my $end_page = &Apache::loncommon::end_page(); |
|
$r->print(<<ENDPAGE); |
|
$start_page |
|
<form method="post" action="/adm/searchcat"> |
|
$hidden_fields |
|
$closebutton |
|
<hr /> |
|
<h2>$heading</h2> |
|
<p> |
|
$errorstring |
|
</p> |
|
<p> |
|
<a href="/adm/searchcat?$parms&persistent_db_id=$env{'form.persistent_db_id'}">$revise</a> |
|
</p> |
|
$end_page |
|
ENDPAGE |
|
} |
|
|
|
###################################################################### |
|
###################################################################### |
|
|
|
=pod |
|
|
|
=item &output_blank_field_error() |
|
|
|
Output a complete page that indicates the user has not filled in enough |
|
information to do a search. |
|
|
|
Inputs: $r (Apache request handle), $closebutton, $parms. |
|
|
|
Returns: nothing |
|
|
|
$parms is extra information to include in the 'Revise search request' link. |
|
|
|
=cut |
|
|
|
###################################################################### |
|
###################################################################### |
|
sub output_blank_field_error { |
|
my ($r,$closebutton,$parms,$hidden_fields)=@_; |
|
my $errormsg = &mt('You did not fill in enough information for the search to be started. You need to fill in relevant fields on the search page in order for a query to be processed.'); |
|
my $revise = &mt('Revise Search Request'); |
|
my $heading = &mt('Unactionable Search Queary'); |
|
my $start_page = &Apache::loncommon::start_page('Search'); |
|
my $end_page = &Apache::loncommon::end_page(); |
|
$r->print(<<ENDPAGE); |
|
$start_page |
|
<form method="post" action="/adm/searchcat"> |
|
$hidden_fields |
|
$closebutton |
|
<hr /> |
|
<h2>$heading</h2> |
|
<p> |
|
$errormsg |
|
</p> |
|
<p> |
|
<a href="/adm/searchcat?$parms&persistent_db_id=$env{'form.persistent_db_id'}">$revise</a> |
|
</p> |
|
$end_page |
|
ENDPAGE |
|
return; |
} |
} |
|
|
|
###################################################################### |
|
###################################################################### |
|
|
|
=pod |
|
|
|
=item &output_date_error() |
|
|
|
Output a full html page with an error message. |
|
|
|
Inputs: |
|
|
|
$r, the request pointer. |
|
$message, the error message for the user. |
|
$closebutton, the specialized close button needed for groupsearch. |
|
|
|
=cut |
|
|
|
###################################################################### |
|
###################################################################### |
sub output_date_error { |
sub output_date_error { |
my ($r,$message)=@_; |
my ($r,$message,$closebutton,$hidden_fields)=@_; |
# make query information persistent to allow for subsequent revision |
# make query information persistent to allow for subsequent revision |
my $persistent=&make_persistent(); |
my $start_page = &Apache::loncommon::start_page('Search'); |
|
my $end_page = &Apache::loncommon::end_page(); |
$r->print(<<BEGINNING); |
|
<html> |
|
<head> |
|
<title>The LearningOnline Network with CAPA</title> |
|
BEGINNING |
|
$r->print(<<RESULTS); |
$r->print(<<RESULTS); |
</head> |
$start_page |
<body bgcolor="#ffffff"> |
|
<img align=right src=/adm/lonIcons/lonlogos.gif> |
|
<h1>Search Catalog</h1> |
|
<form method="post" action="/adm/searchcat"> |
<form method="post" action="/adm/searchcat"> |
$persistent |
$hidden_fields |
<input type='button' value='Revise search request' |
<input type='button' value='Revise search request' |
onClick='this.form.submit();'> |
onClick='this.form.submit();' /> |
$closebutton |
$closebutton |
<hr> |
<hr /> |
<h3>Helpful Message</h3> |
<h3>Error</h3> |
<p> |
<p> |
$message |
$message |
</p> |
</p> |
</body> |
$end_page |
</html> |
|
RESULTS |
RESULTS |
} |
} |
|
|
sub make_persistent { |
###################################################################### |
my $persistent=''; |
###################################################################### |
|
|
map { |
=pod |
if (/^form\./ && !/submit/) { |
|
my $name=$_; |
=item &start_fresh_session() |
my $key=$name; |
|
$name=~s/^form\.//; |
Cleans the global %groupsearch_db by removing all fields which begin with |
$persistent.=<<END; |
'pre_' or 'store'. |
<input type='hidden' name='$name' value='$ENV{$key}' /> |
|
END |
=cut |
|
|
|
###################################################################### |
|
###################################################################### |
|
sub start_fresh_session { |
|
delete $groupsearch_db{'mode_catalog'}; |
|
foreach (keys %groupsearch_db) { |
|
if ($_ =~ /^pre_/) { |
|
delete $groupsearch_db{$_}; |
} |
} |
} (keys %ENV); |
if ($_ =~ /^store/) { |
return $persistent; |
delete $groupsearch_db{$_}; |
|
} |
|
} |
} |
} |
|
|
1; |
1; |
|
|
|
sub cleanup { |
|
if (tied(%groupsearch_db)) { |
|
unless (untie(%groupsearch_db)) { |
|
&Apache::lonnet::logthis('Failed cleanup searchcat: groupsearch_db'); |
|
} |
|
} |
|
&untiehash(); |
|
&Apache::lonmysql::disconnect_from_db(); |
|
return OK; |
|
} |
|
|
__END__ |
__END__ |
|
|
|
=pod |
|
|
|
=back |
|
|
|
=cut |