--- loncom/interface/lonparmset.pm 2000/11/24 17:22:13 1.9 +++ loncom/interface/lonparmset.pm 2005/06/28 15:12:54 1.232 @@ -1,371 +1,2911 @@ # The LearningOnline Network with CAPA # Handler to set parameters for assessments # -# (Handler to resolve ambiguous file locations +# $Id: lonparmset.pm,v 1.232 2005/06/28 15:12:54 albertel Exp $ # -# (TeX Content Handler +# Copyright Michigan State University Board of Trustees # -# 05/29/00,05/30,10/11 Gerd Kortemeyer) +# This file is part of the LearningOnline Network with CAPA (LON-CAPA). # -# 10/11,10/12,10/16 Gerd Kortemeyer) +# LON-CAPA is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 2 of the License, or +# (at your option) any later version. # -# 11/20,11/21,11/22,11/23,11/24,11/25 Gerd Kortemeyer +# LON-CAPA is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with LON-CAPA; if not, write to the Free Software +# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA +# +# /home/httpd/html/adm/gpl.txt +# +# http://www.lon-capa.org/ +# +################################################################### +################################################################### + +=pod + +=head1 NAME + +lonparmset - Handler to set parameters for assessments and course + +=head1 SYNOPSIS + +lonparmset provides an interface to setting course parameters. + +=head1 DESCRIPTION + +This module sets coursewide and assessment parameters. + +=head1 INTERNAL SUBROUTINES + +=over 4 + +=cut + +################################################################### +################################################################### package Apache::lonparmset; use strict; use Apache::lonnet; use Apache::Constants qw(:common :http REDIRECT); +use Apache::lonhtmlcommon(); +use Apache::loncommon; use GDBM_File; -use Apache::lonmeta; +use Apache::lonhomework; +use Apache::lonxml; +use Apache::lonlocal; +use Apache::lonnavmaps; +# --- Caches local to lonparmset -my %courseopt; -my %useropt; -my %bighash; +my $parmhashid; my %parmhash; +my $symbsid; +my %symbs; +my $rulesid; +my %rules; + +# --- end local caches -my @outpar; +################################################## +################################################## -my @ids; -my %symbp; -my %typep; +=pod -my $uname; -my $udom; -my $uhome; +=item parmval -my $csec; +Figure out a cascading parameter. -my $fcat; +Inputs: $what - a parameter spec (incluse part info and name I.E. 0.weight) + $id - a bighash Id number + $def - the resource's default value 'stupid emacs -# -------------------------------------------- Figure out a cascading parameter +Returns: A list, the first item is the index into the remaining list of items of parm valuse that is the active one, the list consists of parm values at the 11 possible levels +11 - General Course +10 - Map or Folder level in course +9- resource default +8- map default +7 - resource level in course +6 - General for section +5 - Map or Folder level for section +4 - resource level in section +3 - General for specific student +2 - Map or Folder level for specific student +1 - resource level for specific student + +=cut + +################################################## sub parmval { - my ($what,$id)=@_; + my ($what,$id,$def,$uname,$udom,$csec)=@_; + return &parmval_by_symb($what,&symbcache($id),$def,$uname,$udom,$csec); +} + +sub parmval_by_symb { + my ($what,$symb,$def,$uname,$udom,$csec)=@_; +# load caches + + &cacheparmhash(); + + my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'}; + my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'}; + my $useropt=&Apache::lonnet::get_userresdata($uname,$udom); + my $courseopt=&Apache::lonnet::get_courseresdata($cnum,$cdom); + + my $result=''; + my @outpar=(); # ----------------------------------------------------- Cascading lookup scheme - my $symbparm=$symbp{$id}.'.'.$what; - my $reslevel= - $ENV{'request.course.id'}.'.'.$symbparm; - my $seclevel= - $ENV{'request.course.id'}.'.'. - $ENV{'request.course.sec'}.'.'.$what; - my $courselevel= - $ENV{'request.course.id'}.'.'.$what; - -# ----------------------------------------------------------- first, check user - - if ($uname) { - if ($useropt{$reslevel}) { $result=$useropt{$reslevel}; - $outpar[1]=$result; } - if ($useropt{$seclevel}) { $result=$useropt{$seclevel}; - $outpar[2]=$result; } - if ($useropt{$courselevel}) { $result=$useropt{$courselevel}; - $outpar[3]=$result; } - } -# -------------------------------------------------------- second, check course - - if ($courseopt{$reslevel}) { $result=$courseopt{$reslevel}; - $outpar[4]=$result; } - if ($courseopt{$seclevel}) { $result=$courseopt{$seclevel}; - $outpar[5]=$result; } - if ($courseopt{$courselevel}) { $result=$courseopt{$courselevel}; - $outpar[6]=$result; } + my $map=(&Apache::lonnet::decode_symb($symb))[0]; + + my $symbparm=$symb.'.'.$what; + my $mapparm=$map.'___(all).'.$what; + + my $seclevel=$env{'request.course.id'}.'.['.$csec.'].'.$what; + my $seclevelr=$env{'request.course.id'}.'.['.$csec.'].'.$symbparm; + my $seclevelm=$env{'request.course.id'}.'.['.$csec.'].'.$mapparm; + + my $courselevel=$env{'request.course.id'}.'.'.$what; + my $courselevelr=$env{'request.course.id'}.'.'.$symbparm; + my $courselevelm=$env{'request.course.id'}.'.'.$mapparm; + + + +# --------------------------------------------------------- first, check course + + if (defined($$courseopt{$courselevel})) { + $outpar[11]=$$courseopt{$courselevel}; + $result=11; + } + + if (defined($$courseopt{$courselevelm})) { + $outpar[10]=$$courseopt{$courselevelm}; + $result=10; + } + +# ------------------------------------------------------- second, check default + + if (defined($def)) { $outpar[9]=$def; $result=9; } # ------------------------------------------------------ third, check map parms - my $thisparm=$parmhash{$symbparm}; - if ($thisparm) { $result=$thisparm; - $outpar[7]=$result; } - -# --------------------------------------------- last, look in resource metadata - - my $filename='/home/httpd/res/'.$bighash{'src_'.$id}.'.meta'; - if (-e $filename) { - my @content; - { - my $fh=Apache::File->new($filename); - @content=<$fh>; - } - if (join('',@content)=~ - /\<$what[^\>]*\>([^\<]*)\<\/$what\>/) { - $result=$1; - $outpar[8]=$result; - } - } - return $result; + my $thisparm=$parmhash{$symbparm}; + if (defined($thisparm)) { $outpar[8]=$thisparm; $result=8; } + + if (defined($$courseopt{$courselevelr})) { + $outpar[7]=$$courseopt{$courselevelr}; + $result=7; + } + +# ------------------------------------------------------ fourth, back to course + if (defined($csec)) { + if (defined($$courseopt{$seclevel})) { + $outpar[6]=$$courseopt{$seclevel}; + $result=6; + } + if (defined($$courseopt{$seclevelm})) { + $outpar[5]=$$courseopt{$seclevelm}; + $result=5; + } + + if (defined($$courseopt{$seclevelr})) { + $outpar[4]=$$courseopt{$seclevelr}; + $result=4; + } + } + +# ---------------------------------------------------------- fifth, check user + + if (defined($uname)) { + if (defined($$useropt{$courselevel})) { + $outpar[3]=$$useropt{$courselevel}; + $result=3; + } + + if (defined($$useropt{$courselevelm})) { + $outpar[2]=$$useropt{$courselevelm}; + $result=2; + } + + if (defined($$useropt{$courselevelr})) { + $outpar[1]=$$useropt{$courselevelr}; + $result=1; + } + } + return ($result,@outpar); } -# ---------------------------------------------------------------- Sort routine +sub resetparmhash { + $parmhashid=''; +} + +sub cacheparmhash { + if ($parmhashid eq $env{'request.course.fn'}) { return; } + my %parmhashfile; + if (tie(%parmhashfile,'GDBM_File', + $env{'request.course.fn'}.'_parms.db',&GDBM_READER(),0640)) { + %parmhash=%parmhashfile; + untie %parmhashfile; + $parmhashid=$env{'request.course.fn'}; + } +} + +sub resetsymbcache { + $symbsid=''; +} + +sub symbcache { + my $id=shift; + if ($symbsid ne $env{'request.course.id'}) { + %symbs=(); + } + unless ($symbs{$id}) { + my $navmap = Apache::lonnavmaps::navmap->new(); + if ($id=~/\./) { + my $resource=$navmap->getById($id); + $symbs{$id}=$resource->symb(); + } else { + my $resource=$navmap->getByMapPc($id); + $symbs{$id}=&Apache::lonnet::declutter($resource->src()); + } + $symbsid=$env{'request.course.id'}; + } + return $symbs{$id}; +} -sub bycat { - if ($fcat eq '') { - $a<=>$b; +sub resetrulescache { + $rulesid=''; +} + +sub rulescache { + my $id=shift; + if ($rulesid ne $env{'request.course.id'}) { + %rules=(); + } + unless (defined($rules{$id})) { + my $dom = $env{'course.'.$env{'request.course.id'}.'.domain'}; + my $crs = $env{'course.'.$env{'request.course.id'}.'.num'}; + %rules=&Apache::lonnet::dump('parmdefactions',$dom,$crs); + $rulesid=$env{'request.course.id'}; + } + return $rules{$id}; +} + +sub preset_defaults { + my $type=shift; + if (&rulescache($type.'_action') eq 'default') { +# yes, there is something + return (&rulescache($type.'_hours'), + &rulescache($type.'_min'), + &rulescache($type.'_sec'), + &rulescache($type.'_value')); } else { - &parmval('0.'.$fcat,$a)<=>&parmval('0.'.$fcat,$b); +# nothing there or something else + return ('','','','',''); + } +} + +################################################## +################################################## +# +# Store a parameter by ID +# +# Takes +# - resource id +# - name of parameter +# - level +# - new value +# - new type +# - username +# - userdomain + +sub storeparm { + my ($sresid,$spnam,$snum,$nval,$ntype,$uname,$udom,$csec)=@_; + &storeparm_by_symb(&symbcache($sresid),$spnam,$snum,$nval,$ntype,$uname,$udom,$csec); +} + +# +# Store a parameter by symb +# +# Takes +# - symb +# - name of parameter +# - level +# - new value +# - new type +# - username +# - userdomain + +my %recstack; +sub storeparm_by_symb { + my ($symb,$spnam,$snum,$nval,$ntype,$uname,$udom,$csec,$recflag)=@_; + unless ($recflag) { +# first time call + %recstack=(); + $recflag=1; + } +# store parameter + &storeparm_by_symb_inner + ($symb,$spnam,$snum,$nval,$ntype,$uname,$udom,$csec); + my ($prefix,$parm)=($spnam=~/^(.*[\_\.])([^\_\.]+)$/); +# remember that this was set + $recstack{$parm}=1; +# what does this trigger? + foreach my $triggered (split(/\:/,&rulescache($parm.'_triggers'))) { +# don't backfire + unless ((!$triggered) || ($recstack{$triggered})) { + my $action=&rulescache($triggered.'_action'); + my ($whichaction,$whichparm)=($action=~/^(.*\_)([^\_]+)$/); +# set triggered parameter on same level + my $newspnam=$prefix.$triggered; + my $newvalue=''; + my $active=1; + if ($action=~/^when\_setting/) { +# are there restrictions? + if (&rulescache($triggered.'_triggervalue')=~/\w/) { + $active=0; + foreach my $possiblevalue (split(/\s*\,\s*/,&rulescache($triggered.'_triggervalue'))) { + if (lc($possiblevalue) eq lc($nval)) { $active=1; } + } + } + $newvalue=&rulescache($triggered.'_value'); + } else { + my $totalsecs=((&rulescache($triggered.'_days')*24+&rulescache($triggered.'_hours'))*60+&rulescache($triggered.'_min'))*60+&rulescache($triggered.'_sec'); + if ($action=~/^later\_than/) { + $newvalue=$nval+$totalsecs; + } else { + $newvalue=$nval-$totalsecs; + } + } + if ($active) { + &storeparm_by_symb($symb,$newspnam,$snum,$newvalue,&rulescache($triggered.'_type'), + $uname,$udom,$csec,$recflag); + } + } + } + return ''; +} + +sub storeparm_by_symb_inner { +# ---------------------------------------------------------- Get symb, map, etc + my ($symb,$spnam,$snum,$nval,$ntype,$uname,$udom,$csec)=@_; +# ---------------------------------------------------------- Construct prefixes + $spnam=~s/\_([^\_]+)$/\.$1/; + my $map=(&Apache::lonnet::decode_symb($symb))[0]; + my $symbparm=$symb.'.'.$spnam; + my $mapparm=$map.'___(all).'.$spnam; + + my $seclevel=$env{'request.course.id'}.'.['.$csec.'].'.$spnam; + my $seclevelr=$env{'request.course.id'}.'.['.$csec.'].'.$symbparm; + my $seclevelm=$env{'request.course.id'}.'.['.$csec.'].'.$mapparm; + + my $courselevel=$env{'request.course.id'}.'.'.$spnam; + my $courselevelr=$env{'request.course.id'}.'.'.$symbparm; + my $courselevelm=$env{'request.course.id'}.'.'.$mapparm; + + my $storeunder=''; + if (($snum==11) || ($snum==3)) { $storeunder=$courselevel; } + if (($snum==10) || ($snum==2)) { $storeunder=$courselevelm; } + if (($snum==7) || ($snum==1)) { $storeunder=$courselevelr; } + if ($snum==6) { $storeunder=$seclevel; } + if ($snum==5) { $storeunder=$seclevelm; } + if ($snum==4) { $storeunder=$seclevelr; } + + my $delete; + if ($nval eq '') { $delete=1;} + my %storecontent = ($storeunder => $nval, + $storeunder.'.type' => $ntype); + my $reply=''; + if ($snum>3) { +# ---------------------------------------------------------------- Store Course +# + my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'}; + my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'}; +# Expire sheets + &Apache::lonnet::expirespread('','','studentcalc'); + if (($snum==7) || ($snum==4)) { + &Apache::lonnet::expirespread('','','assesscalc',$symb); + } elsif (($snum==8) || ($snum==5)) { + &Apache::lonnet::expirespread('','','assesscalc',$map); + } else { + &Apache::lonnet::expirespread('','','assesscalc'); + } +# Store parameter + if ($delete) { + $reply=&Apache::lonnet::del + ('resourcedata',[keys(%storecontent)],$cdom,$cnum); + } else { + $reply=&Apache::lonnet::cput + ('resourcedata',\%storecontent,$cdom,$cnum); + } + &Apache::lonnet::devalidatecourseresdata($cnum,$cdom); + } else { +# ------------------------------------------------------------------ Store User +# +# Expire sheets + &Apache::lonnet::expirespread($uname,$udom,'studentcalc'); + if ($snum==1) { + &Apache::lonnet::expirespread + ($uname,$udom,'assesscalc',$symb); + } elsif ($snum==2) { + &Apache::lonnet::expirespread + ($uname,$udom,'assesscalc',$map); + } else { + &Apache::lonnet::expirespread($uname,$udom,'assesscalc'); + } +# Store parameter + if ($delete) { + $reply=&Apache::lonnet::del + ('resourcedata',[keys(%storecontent)],$udom,$uname); + } else { + $reply=&Apache::lonnet::cput + ('resourcedata',\%storecontent,$udom,$uname); + } + &Apache::lonnet::devalidateuserresdata($uname,$udom); + } + + if ($reply=~/^error\:(.*)/) { + return "Write Error: $1"; } + return ''; } -# ------------------------------------------------------------ Output for value +################################################## +################################################## +=pod + +=item valout + +Format a value for output. + +Inputs: $value, $type + +Returns: $value, formatted for output. If $type indicates it is a date, +localtime($value) is returned. + +=cut + +################################################## +################################################## sub valout { my ($value,$type)=@_; - return - ($value?(($type=~/^date/)?localtime($value):$value):' '); + my $result = ''; + # Values of zero are valid. + if (! $value && $value ne '0') { + $result = ' '; + } else { + if ($type eq 'date_interval') { + my ($sec,$min,$hour,$mday,$mon,$year)=gmtime($value); + $year=$year-70; + $mday--; + if ($year) { + $result.=$year.' yrs '; + } + if ($mon) { + $result.=$mon.' mths '; + } + if ($mday) { + $result.=$mday.' days '; + } + if ($hour) { + $result.=$hour.' hrs '; + } + if ($min) { + $result.=$min.' mins '; + } + if ($sec) { + $result.=$sec.' secs '; + } + $result=~s/\s+$//; + } elsif (&isdateparm($type)) { + $result = localtime($value); + } else { + $result = $value; + } + } + return $result; } -# -------------------------------------------------------- Produces link anchor +################################################## +################################################## -sub plink { - my ($type,$dis,$value,$marker,$return,$call)=@_; - return ''. - &valout($value,$type).''; -} +=pod -# ================================================================ Main Handler +=item plink -sub handler { - my $r=shift; +Produces a link anchor. - if ($r->header_only) { - $r->content_type('text/html'); - $r->send_http_header; - return OK; - } +Inputs: $type,$dis,$value,$marker,$return,$call -# ----------------------------------------------------- Needs to be in a course +Returns: scalar with html code for a link which will envoke the +javascript function 'pjump'. - if (($ENV{'request.course.fn'}) && - (&Apache::lonnet::allowed('opa',$ENV{'request.course.id'}))) { -# -------------------------------------------------------- Variable declaration +=cut - %courseopt=(); - %useropt=(); - %bighash=(); - - @ids=(); - %symbp=(); - %typep=(); - - $uname=$ENV{'form.uname'}; - $udom=$ENV{'form.udom'}; - unless ($udom) { $uname=''; } - $uhome=''; - my $message=''; - if ($uname) { - $uhome=&Apache::lonnet::homeserver($uname,$udom); - } - if ($uhome eq 'no_host') { - $message= - "