File:  [LON-CAPA] / loncom / interface / lonparmset.pm
Revision 1.235: download - view: text, annotated - select for diffs
Tue Jun 28 15:28:08 2005 UTC (19 years, 4 months ago) by albertel
Branches: MAIN
CVS tags: HEAD
- add in <label> for parm type selection

# The LearningOnline Network with CAPA
# Handler to set parameters for assessments
#
# $Id: lonparmset.pm,v 1.235 2005/06/28 15:28:08 albertel Exp $
#
# Copyright Michigan State University Board of Trustees
#
# This file is part of the LearningOnline Network with CAPA (LON-CAPA).
#
# 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.
#
# 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::lonhomework;
use Apache::lonxml;
use Apache::lonlocal;
use Apache::lonnavmaps;

# --- Caches local to lonparmset

my $parmhashid;
my %parmhash;
my $symbsid;
my %symbs;
my $rulesid;
my %rules;

# --- end local caches

##################################################
##################################################

=pod

=item parmval

Figure out a cascading parameter.

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

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,$def,$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 $map=(&Apache::lonnet::decode_symb($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{$symbparm};
    if (defined($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);
}

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 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 {
# 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 "<font color=red>Write Error: $1</font>";
    }
    return '';
}

##################################################
##################################################

=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)=@_;
    my $result = '';
    # Values of zero are valid.
    if (! $value && $value ne '0') {
	$result = '&nbsp;&nbsp;';
    } else {
        if ($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;
}

##################################################
##################################################

=pod

=item plink

Produces a link anchor.

Inputs: $type,$dis,$value,$marker,$return,$call

Returns: scalar with html code for a link which will envoke the 
javascript function 'pjump'.

=cut

##################################################
##################################################
sub plink {
    my ($type,$dis,$value,$marker,$return,$call)=@_;
    my $winvalue=$value;
    unless ($winvalue) {
	if (&isdateparm($type)) {
            $winvalue=$env{'form.recent_'.$type};
        } else {
            $winvalue=$env{'form.recent_'.(split(/\_/,$type))[0]};
        }
    }
    my ($parmname)=((split(/\&/,$marker))[1]=~/\_([^\_]+)$/);
    my ($hour,$min,$sec,$val)=&preset_defaults($parmname);
    unless (defined($winvalue)) { $winvalue=$val; }
    return 
	'<a href="javascript:pjump('."'".$type."','".$dis."','".$winvalue."','"
	    .$marker."','".$return."','".$call."','".$hour."','".$min."','".$sec."'".');">'.
		&valout($value,$type).'</a><a name="'.$marker.'"></a>';
}

sub startpage {
    my $r=shift;

    my $bodytag=&Apache::loncommon::bodytag('Set/Modify Course Parameters','',
                                            'onUnload="pclose()"');
    my $breadcrumbs = &Apache::lonhtmlcommon::breadcrumbs(undef,'Table Mode Parameter Setting');
    my $selscript=&Apache::loncommon::studentbrowser_javascript();
    my $pjump_def = &Apache::lonhtmlcommon::pjump_javascript_definition();
    my $html=&Apache::lonxml::xmlbegin();
    $r->print(<<ENDHEAD);
$html
<head>
<title>LON-CAPA Course Parameters</title>
<script>

    function pclose() {
        parmwin=window.open("/adm/rat/empty.html","LONCAPAparms",
                 "height=350,width=350,scrollbars=no,menubar=no");
        parmwin.close();
    }

    $pjump_def

    function psub() {
        pclose();
        if (document.parmform.pres_marker.value!='') {
            document.parmform.action+='#'+document.parmform.pres_marker.value;
            var typedef=new Array();
            typedef=document.parmform.pres_type.value.split('_');
           if (document.parmform.pres_type.value!='') {
            if (typedef[0]=='date') {
                eval('document.parmform.recent_'+
                     document.parmform.pres_type.value+
		     '.value=document.parmform.pres_value.value;');
            } else {
                eval('document.parmform.recent_'+typedef[0]+
		     '.value=document.parmform.pres_value.value;');
            }
	   }
            document.parmform.submit();
        } else {
            document.parmform.pres_value.value='';
            document.parmform.pres_marker.value='';
        }
    }

    function openWindow(url, wdwName, w, h, toolbar,scrollbar) {
        var options = "width=" + w + ",height=" + h + ",";
        options += "resizable=yes,scrollbars="+scrollbar+",status=no,";
        options += "menubar=no,toolbar="+toolbar+",location=no,directories=no";
        var newWin = window.open(url, wdwName, options);
        newWin.focus();
    }
</script>
$selscript
</head>
$bodytag
$breadcrumbs
<form method="post" action="/adm/parmset?action=settable" name="parmform">
<input type="hidden" value='' name="pres_value">
<input type="hidden" value='' name="pres_type">
<input type="hidden" value='' name="pres_marker">
<input type="hidden" value='1' name="prevvisit">
ENDHEAD
}


sub print_row {
    my ($r,$which,$part,$name,$symbp,$rid,$default,$defaulttype,$display,$defbgone,
	$defbgtwo,$parmlev,$uname,$udom,$csec)=@_;
# get the values for the parameter in cascading order
# empty levels will remain empty
    my ($result,@outpar)=&parmval($$part{$which}.'.'.$$name{$which},
				  $rid,$$default{$which},$uname,$udom,$csec);
# get the type for the parameters
# problem: these may not be set for all levels
    my ($typeresult,@typeoutpar)=&parmval($$part{$which}.'.'.
                                          $$name{$which}.'.type',
				  $rid,$$defaulttype{$which},$uname,$udom,$csec);
# cascade down manually
    my $cascadetype=$$defaulttype{$which};
    for (my $i=11;$i>0;$i--) {
	 if ($typeoutpar[$i]) { 
            $cascadetype=$typeoutpar[$i];
	} else {
            $typeoutpar[$i]=$cascadetype;
        }
    }
    my $parm=$$display{$which};

    if ($parmlev eq 'full') {
        $r->print('<td bgcolor='.$defbgtwo.' align="center">'
                  .$$part{$which}.'</td>');
    } else {    
        $parm=~s|\[.*\]\s||g;
    }
    my $automatic=&rulescache(($which=~/\_([^\_]+)$/)[0].'_triggers');
    if ($automatic) {
	$parm.='<font color="red"><br />'.&mt('Automatically sets').' '.join(', ',split(/\:/,$automatic)).'</font>';
    }
    $r->print('<td bgcolor='.$defbgone.'>'.$parm.'</td>');
   
    my $thismarker=$which;
    $thismarker=~s/^parameter\_//;
    my $mprefix=$rid.'&'.$thismarker.'&';

    if ($parmlev eq 'general') {

        if ($uname) {
            &print_td($r,3,$defbgone,$result,\@outpar,$mprefix,$_,\@typeoutpar,$display);
        } elsif ($csec) {
            &print_td($r,6,$defbgtwo,$result,\@outpar,$mprefix,$_,\@typeoutpar,$display); 
        } else {
            &print_td($r,11,$defbgone,$result,\@outpar,$mprefix,$_,\@typeoutpar,$display); 
        }
    } elsif ($parmlev eq 'map') {

        if ($uname) {
            &print_td($r,2,$defbgone,$result,\@outpar,$mprefix,$_,\@typeoutpar,$display);
        } elsif ($csec) {
            &print_td($r,5,$defbgtwo,$result,\@outpar,$mprefix,$_,\@typeoutpar,$display);
        } else {
            &print_td($r,10,$defbgone,$result,\@outpar,$mprefix,$_,\@typeoutpar,$display);
        }
    } else {

        &print_td($r,11,$defbgone,$result,\@outpar,$mprefix,$_,\@typeoutpar,$display);

	&print_td($r,10,$defbgone,$result,\@outpar,$mprefix,$_,\@typeoutpar,$display);
	&print_td($r,9,'#FFDDDD',$result,\@outpar,$mprefix,$_,\@typeoutpar,$display);
	&print_td($r,8,'#FFDDDD',$result,\@outpar,$mprefix,$_,\@typeoutpar,$display);
	&print_td($r,7,$defbgone,$result,\@outpar,$mprefix,$_,\@typeoutpar,$display);
	
	if ($csec) {
	    &print_td($r,6,$defbgtwo,$result,\@outpar,$mprefix,$_,\@typeoutpar,$display);
	    &print_td($r,5,$defbgtwo,$result,\@outpar,$mprefix,$_,\@typeoutpar,$display);
	    &print_td($r,4,$defbgtwo,$result,\@outpar,$mprefix,$_,\@typeoutpar,$display);
	}
	if ($uname) {
	    &print_td($r,3,$defbgone,$result,\@outpar,$mprefix,$_,\@typeoutpar,$display);
	    &print_td($r,2,$defbgone,$result,\@outpar,$mprefix,$_,\@typeoutpar,$display);
	    &print_td($r,1,$defbgone,$result,\@outpar,$mprefix,$_,\@typeoutpar,$display);
	}

    } # end of $parmlev if/else

    $r->print('<td bgcolor=#CCCCFF align="center">'.
                  &valout($outpar[$result],$typeoutpar[$result]).'</td>');

    if ($parmlev eq 'full') {
        my $sessionval=&Apache::lonnet::EXT('resource.'.$$part{$which}.
                                        '.'.$$name{$which},$$symbp{$rid});
        my $sessionvaltype=$typeoutpar[$result];
        if (!defined($sessionvaltype)) { $sessionvaltype=$$defaulttype{$which}; }
        $r->print('<td bgcolor=#999999 align="center"><font color=#FFFFFF>'.
                  &valout($sessionval,$sessionvaltype).'&nbsp;'.
                  '</font></td>');
    }
    $r->print('</tr>');
    $r->print("\n");
}

sub print_td {
    my ($r,$which,$defbg,$result,$outpar,$mprefix,$value,$typeoutpar,$display)=@_;
    $r->print('<td bgcolor='.(($result==$which)?'"#AAFFAA"':$defbg).
              ' align="center">');
    if ($which<8 || $which > 9) {
	$r->print(&plink($$typeoutpar[$which],
			 $$display{$value},$$outpar[$which],
			 $mprefix."$which",'parmform.pres','psub'));
    } else {
	$r->print(&valout($$outpar[$which],$$typeoutpar[$which]));
    }
    $r->print('</td>'."\n");
}


=pod

=item B<extractResourceInformation>: Given the course data hash, extractResourceInformation extracts lots of information about the course's resources into a variety of hashes.

Input: See list below:

=over 4

=item B<ids>: An array that will contain all of the ids in the course.

=item B<typep>: hash, id->type, where "type" contains the extension of the file, thus, I<problem exam quiz assess survey form>.

=item B<keyp>: hash, id->key list, will contain a comma separated list of the meta-data keys available for the given id

=item B<allparms>: hash, name of parameter->display value (what is the display value?)

=item B<allparts>: hash, part identification->text representation of part, where the text representation is "[Part $part]"

=item B<allkeys>: hash, full key to part->display value (what's display value?)

=item B<allmaps>: hash, ???

=item B<fcat>: ???

=item B<defp>: hash, ???

=item B<mapp>: ??

=item B<symbp>: hash, id->full sym?

=back

=cut

sub extractResourceInformation {
    my $ids = shift;
    my $typep = shift;
    my $keyp = shift;
    my $allparms = shift;
    my $allparts = shift;
    my $allmaps = shift;
    my $mapp = shift;
    my $symbp = shift;
    my $maptitles=shift;
    my $uris=shift;
    my $keyorder=shift;
    my $defkeytype=shift;

    my $keyordercnt=100;

    my $navmap = Apache::lonnavmaps::navmap->new();
    my @allres=$navmap->retrieveResources(undef,undef,1,undef,1);
    foreach my $resource (@allres) {
	my $id=$resource->id();
        my ($mapid,$resid)=split(/\./,$id);
	if ($mapid eq '0') { next; }
	$$ids[$#$ids+1]=$id;
	my $srcf=$resource->src();
	$srcf=~/\.(\w+)$/;
	$$typep{$id}=$1;
	$$keyp{$id}='';
        $$uris{$id}=$srcf;
	foreach (split(/\,/,&Apache::lonnet::metadata($srcf,'allpossiblekeys'))) {
	    if ($_=~/^parameter\_(.*)/) {
		my $key=$_;
# Hidden parameters
		if (&Apache::lonnet::metadata($srcf,$key.'.hidden') eq 'parm') {
		    next;
		}
		my $display= &Apache::lonnet::metadata($srcf,$key.'.display');
		my $name=&Apache::lonnet::metadata($srcf,$key.'.name');
		my $part= &Apache::lonnet::metadata($srcf,$key.'.part');
#
# allparms is a hash of parameter names
#
		my $parmdis = $display;
		$parmdis =~ s/\[Part.*$//g;
                $$allparms{$name}=$parmdis;
		$$defkeytype{$name}=&Apache::lonnet::metadata($srcf,$key.'.type');
#
# allparts is a hash of all parts
#
		$$allparts{$part} = "Part: $part";
#
# Remember all keys going with this resource
#
		if ($$keyp{$id}) {
		    $$keyp{$id}.=','.$key;
		} else {
		    $$keyp{$id}=$key;
		}
#
# Put in order
# 
                unless ($$keyorder{$key}) {
                    $$keyorder{$key}=$keyordercnt;
                    $keyordercnt++;
		}

	    }
	}
	$$mapp{$id}=
	    &Apache::lonnet::declutter($resource->enclosing_map_src());
	$$mapp{$mapid}=$$mapp{$id};
	$$allmaps{$mapid}=$$mapp{$id};
	if ($mapid eq '1') {
	    $$maptitles{$mapid}='Main Course Documents';
	} else {
	    $$maptitles{$mapid}=&Apache::lonnet::gettitle(&Apache::lonnet::clutter($$mapp{$id}));
	}
	$$maptitles{$$mapp{$id}}=$$maptitles{$mapid};
	$$symbp{$id}=&Apache::lonnet::encode_symb($$mapp{$id},$resid,$srcf);
	$$symbp{$mapid}=$$mapp{$id}.'___(all)';
    }
}


##################################################
##################################################

sub isdateparm {
    my $type=shift;
    return (($type=~/^date/) && (!($type eq 'date_interval')));
}

sub parmmenu {
    my ($r,$allparms,$pscat,$keyorder)=@_;
    my $tempkey;
    $r->print(<<ENDSCRIPT);
<script type="text/javascript">
    function checkall(value, checkName) {
	for (i=0; i<document.forms.parmform.elements.length; i++) {
            ele = document.forms.parmform.elements[i];
            if (ele.name == checkName) {
                document.forms.parmform.elements[i].checked=value;
            }
        }
    }

    function checkthis(thisvalue, checkName) {
	for (i=0; i<document.forms.parmform.elements.length; i++) {
            ele = document.forms.parmform.elements[i];
            if (ele.name == checkName) {
		if (ele.value == thisvalue) {
		    document.forms.parmform.elements[i].checked=true;
		}
            }
        }
    }

    function checkdates() {
	checkthis('duedate','pscat');
 	checkthis('opendate','pscat');
	checkthis('answerdate','pscat');
    }

    function checkdisset() {
	checkthis('discussend','pscat');
 	checkthis('discusshide','pscat');
    }

    function checkcontdates() {
	checkthis('contentopen','pscat');
 	checkthis('contentclose','pscat');
    }
 

    function checkvisi() {
	checkthis('hiddenresource','pscat');
 	checkthis('encrypturl','pscat');
	checkthis('problemstatus','pscat');
	checkthis('contentopen','pscat');
	checkthis('opendate','pscat');
    }

    function checkparts() {
	checkthis('hiddenparts','pscat');
	checkthis('display','pscat');
	checkthis('ordered','pscat');
    }

    function checkstandard() {
        checkall(false,'pscat');
	checkdates();
	checkthis('weight','pscat');
	checkthis('maxtries','pscat');
    }

</script>
ENDSCRIPT
    $r->print();
    $r->print("\n<table><tr>");
    my $cnt=0;
    foreach $tempkey (&keysindisplayorder($allparms,$keyorder)) {
	$r->print("\n<td><font size='-1'><label><input type='checkbox' name='pscat' ");
	$r->print('value="'.$tempkey.'"');
	if ($$pscat[0] eq "all" || grep $_ eq $tempkey, @{$pscat}) {
	    $r->print(' checked');
	}
	$r->print('>'.$$allparms{$tempkey}.'</label></font></td>');
 	$cnt++;
        if ($cnt==3) {
	    $r->print("</tr>\n<tr>");
	    $cnt=0;
	}
    }
    $r->print('
</tr><tr><td>
<a href="javascript:checkall(true, \'pscat\')">Select&nbsp;All</a><br />
<a href="javascript:checkstandard()">Select&nbsp;Common&nbsp;Only</a>
</td><td>
<a href="javascript:checkdates()">Add&nbsp;Problem&nbsp;Dates</a>
<a href="javascript:checkcontdates()">Add&nbsp;Content&nbsp;Dates</a><br />
<a href="javascript:checkdisset()">Add&nbsp;Discussion&nbsp;Settings</a>
<a href="javascript:checkvisi()">Add&nbsp;Visibilities</a><br />
<a href="javascript:checkparts()">Add&nbsp;Part&nbsp;Parameters</a>
</td><td>
<a href="javascript:checkall(false, \'pscat\')">Unselect&nbsp;All</a>
</td>
');
    $r->print('</tr></table>');
}

sub partmenu {
    my ($r,$allparts,$psprt)=@_;
    $r->print('<select multiple name="psprt" size="8">');
    $r->print('<option value="all"');
    $r->print(' selected') unless (@{$psprt});
    $r->print('>'.&mt('All Parts').'</option>');
    my %temphash=();
    foreach (@{$psprt}) { $temphash{$_}=1; }
    foreach my $tempkey (sort {
	if ($a==$b) { return ($a cmp $b) } else { return ($a <=> $b); }
    } keys(%{$allparts})) {
	unless ($tempkey =~ /\./) {
	    $r->print('<option value="'.$tempkey.'"');
	    if ($$psprt[0] eq "all" ||  $temphash{$tempkey}) {
		$r->print(' selected');
	    }
	    $r->print('>'.$$allparts{$tempkey}.'</option>');
	}
    }
    $r->print('</select>');
}

sub usermenu {
    my ($r,$uname,$id,$udom,$csec)=@_;
    my $chooseopt=&Apache::loncommon::select_dom_form($udom,'udom').' '.
        &Apache::loncommon::selectstudent_link('parmform','uname','udom');
    my $selscript=&Apache::loncommon::studentbrowser_javascript();
    my %lt=&Apache::lonlocal::texthash(
		    'sg'    => "Section/Group",
		    'fu'    => "For User",
		    'oi'    => "or ID",
		    'ad'    => "at Domain"
				       );
    my %sectionhash=();
    my $sections='';
    if (&Apache::loncommon::get_sections(
                 $env{'course.'.$env{'request.course.id'}.'.domain'},
                 $env{'course.'.$env{'request.course.id'}.'.num'},
					 \%sectionhash)) {
        $sections=$lt{'sg'}.': <select name="csec">';
	foreach ('',sort keys %sectionhash) {
	    $sections.='<option value="'.$_.'"'.
		($_ eq $csec?'selected="selected"':'').'>'.$_.'</option>';
        }
        $sections.='</select>';
     }
     $r->print(<<ENDMENU);
<b>
$sections
<br />
$lt{'fu'} 
<input type="text" value="$uname" size="12" name="uname" />
$lt{'oi'}
<input type="text" value="$id" size="12" name="id" /> 
$lt{'ad'}
$chooseopt
</b>
ENDMENU
}

sub displaymenu {
    my ($r,$allparms,$allparts,$pscat,$psprt,$keyorder)=@_;
    $r->print('<table border="1"><tr><th>'.&mt('Select Parameters to View').'</th><th>'.
	     &mt('Select Parts to View').'</th></tr><tr><td>');  
    &parmmenu($r,$allparms,$pscat,$keyorder);
    $r->print('</td><td>');
    &partmenu($r,$allparts,$psprt);
    $r->print('</td></tr></table>');
}

sub mapmenu {
    my ($r,$allmaps,$pschp,$maptitles)=@_;
    $r->print('<b>'.&mt('Select Enclosing Map or Folder').'</b> ');
    $r->print('<select name="pschp">');
    $r->print('<option value="all">'.&mt('All Maps or Folders').'</option>');
    foreach (sort {$$allmaps{$a} cmp $$allmaps{$b}} keys %{$allmaps}) {
	$r->print('<option value="'.$_.'"');
	if (($pschp eq $_)) { $r->print(' selected'); }
	$r->print('>'.$$maptitles{$_}.($$allmaps{$_}!~/^uploaded/?' ['.$$allmaps{$_}.']':'').'</option>');
    }
    $r->print("</select>");
}

sub levelmenu {
    my ($r,$alllevs,$parmlev)=@_;
    $r->print('<b>'.&mt('Select Parameter Level').
	      &Apache::loncommon::help_open_topic('Course_Parameter_Levels').'</b> ');
    $r->print('<select name="parmlev">');
    foreach (reverse sort keys %{$alllevs}) {
	$r->print('<option value="'.$$alllevs{$_}.'"');
	if ($parmlev eq $$alllevs{$_}) {
	    $r->print(' selected'); 
	}
	$r->print('>'.$_.'</option>');
    }
    $r->print("</select>");
}


sub sectionmenu {
    my ($r,$selectedsections)=@_;
    my %sectionhash=();

    if (&Apache::loncommon::get_sections(
                 $env{'course.'.$env{'request.course.id'}.'.domain'},
                 $env{'course.'.$env{'request.course.id'}.'.num'},
					 \%sectionhash)) {
	$r->print('<select name="Section" multiple="true" size="8" >');
	foreach my $s ('all',sort keys %sectionhash) {
	    $r->print('    <option value="'.$s.'"');
	    foreach (@{$selectedsections}) {
		if ($s eq $_) {
		    $r->print(' selected');
		    last;
		}
	    }
	    $r->print('>'.$s."</option>\n");
	}
	$r->print("</select>\n");
    }
}

sub keysplit {
    my $keyp=shift;
    return (split(/\,/,$keyp));
}

sub keysinorder {
    my ($name,$keyorder)=@_;
    return sort {
	$$keyorder{$a} <=> $$keyorder{$b};
    } (keys %{$name});
}

sub keysindisplayorder {
    my ($name,$keyorder)=@_;
    return sort {
	$$keyorder{'parameter_0_'.$a} <=> $$keyorder{'parameter_0_'.$b};
    } (keys %{$name});
}

sub sortmenu {
    my ($r,$sortorder)=@_;
    $r->print('<br /><input type="radio" name="sortorder" value="realmstudent"');
    if ($sortorder eq 'realmstudent') {
       $r->print(' checked="on"');
    }
    $r->print(' />'.&mt('Sort by realm first, then student (group/section)'));
    $r->print('<br /><input type="radio" name="sortorder" value="studentrealm"');
    if ($sortorder eq 'studentrealm') {
       $r->print(' checked="on"');
    }
    $r->print(' />'.&mt('Sort by student (group/section) first, then realm'));
}

sub standardkeyorder {
    return ('parameter_0_opendate' => 1,
	    'parameter_0_duedate' => 2,
	    'parameter_0_answerdate' => 3,
	    'parameter_0_interval' => 4,
	    'parameter_0_weight' => 5,
	    'parameter_0_maxtries' => 6,
	    'parameter_0_hinttries' => 7,
	    'parameter_0_contentopen' => 8,
	    'parameter_0_contentclose' => 9,
	    'parameter_0_type' => 10,
	    'parameter_0_problemstatus' => 11,
	    'parameter_0_hiddenresource' => 12,
	    'parameter_0_hiddenparts' => 13,
	    'parameter_0_display' => 14,
	    'parameter_0_ordered' => 15,
	    'parameter_0_tol' => 16,
	    'parameter_0_sig' => 17,
	    'parameter_0_turnoffunit' => 18,
            'parameter_0_discussend' => 19,
            'parameter_0_discusshide' => 20);
}

##################################################
##################################################

=pod

=item assessparms

Show assessment data and parameters.  This is a large routine that should
be simplified and shortened... someday.

Inputs: $r

Returns: nothing

Variables used (guessed by Jeremy):

=over 4

=item B<pscat>: ParameterS CATegories? ends up a list of the types of parameters that exist, e.g., tol, weight, acc, opendate, duedate, answerdate, sig, maxtries, type.

=item B<psprt>: ParameterS PaRTs? a list of the parts of a problem that we are displaying? Used to display only selected parts?

=item B<allmaps>:

=back

=cut

##################################################
##################################################
sub assessparms {

    my $r=shift;

    my @ids=();
    my %symbp=();
    my %mapp=();
    my %typep=();
    my %keyp=();
    my %uris=();
    my %maptitles=();

# -------------------------------------------------------- Variable declaration

    my %allmaps=();
    my %alllevs=();

    my $uname;
    my $udom;
    my $uhome;
    my $csec;
 
    my $coursename=$env{'course.'.$env{'request.course.id'}.'.description'};

    $alllevs{'Resource Level'}='full';
    $alllevs{'Map/Folder Level'}='map';
    $alllevs{'Course Level'}='general';

    my %allparms;
    my %allparts;
#
# Order in which these parameters will be displayed
#
    my %keyorder=&standardkeyorder();

    @ids=();
    %symbp=();
    %typep=();

    my $message='';

    $csec=$env{'form.csec'};

    if      ($udom=$env{'form.udom'}) {
    } elsif ($udom=$env{'request.role.domain'}) {
    } elsif ($udom=$env{'user.domain'}) {
    } else {
	$udom=$r->dir_config('lonDefDomain');
    }

    my @pscat=&Apache::loncommon::get_env_multiple('form.pscat');
    my $pschp=$env{'form.pschp'};
    my @psprt=&Apache::loncommon::get_env_multiple('form.psprt');
    if (!@psprt) { $psprt[0]='0'; }

    my $pssymb='';
    my $parmlev='';
 
    unless ($env{'form.parmlev'}) {
        $parmlev = 'map';
    } else {
        $parmlev = $env{'form.parmlev'};
    }

# ----------------------------------------------- Was this started from grades?

    if (($env{'form.command'} eq 'set') && ($env{'form.url'})
	&& (!$env{'form.dis'})) {
	my $url=$env{'form.url'};
	$url=~s-^http://($ENV{'SERVER_NAME'}|$ENV{'HTTP_HOST'})--;
	$pssymb=&Apache::lonnet::symbread($url);
	if (!@pscat) { @pscat=('all'); }
	$pschp='';
        $parmlev = 'full';
    } elsif ($env{'form.symb'}) {
	$pssymb=$env{'form.symb'};
	if (!@pscat) { @pscat=('all'); }
	$pschp='';
        $parmlev = 'full';
    } else {
	$env{'form.url'}='';
    }

    my $id=$env{'form.id'};
    if (($id) && ($udom)) {
	$uname=(&Apache::lonnet::idget($udom,$id))[1];
	if ($uname) {
	    $id='';
	} else {
	    $message=
		"<font color=red>".&mt("Unknown ID")." '$id' ".
		&mt('at domain')." '$udom'</font>";
	}
    } else {
	$uname=$env{'form.uname'};
    }
    unless ($udom) { $uname=''; }
    $uhome='';
    if ($uname) {
	$uhome=&Apache::lonnet::homeserver($uname,$udom);
        if ($uhome eq 'no_host') {
	    $message=
		"<font color=red>".&mt("Unknown user")." '$uname' ".
		&mt("at domain")." '$udom'</font>";
	    $uname='';
        } else {
	    $csec=&Apache::lonnet::getsection($udom,$uname,
					      $env{'request.course.id'});
	    if ($csec eq '-1') {
		$message="<font color=red>".
		    &mt("User")." '$uname' ".&mt("at domain")." '$udom' ".
		    &mt("not in this course")."</font>";
		$uname='';
		$csec=$env{'form.csec'};
	    } else {
		my %name=&Apache::lonnet::userenvironment($udom,$uname,
		      ('firstname','middlename','lastname','generation','id'));
		$message="\n<p>\n".&mt("Full Name").": ".
		    $name{'firstname'}.' '.$name{'middlename'}.' '
			.$name{'lastname'}.' '.$name{'generation'}.
			    "<br>\n".&mt('ID').": ".$name{'id'}.'<p>';
	    }
        }
    }

    unless ($csec) { $csec=''; }

# --------------------------------------------------------- Get all assessments
    &extractResourceInformation(\@ids, \%typep,\%keyp, \%allparms, \%allparts, \%allmaps, 
				\%mapp, \%symbp,\%maptitles,\%uris,
				\%keyorder);

    $mapp{'0.0'} = '';
    $symbp{'0.0'} = '';

# ---------------------------------------------------------- Anything to store?
    if ($env{'form.pres_marker'}) {
        my @markers=split(/\&\&\&/,$env{'form.pres_marker'});
        my @values=split(/\&\&\&/,$env{'form.pres_value'});
        my @types=split(/\&\&\&/,$env{'form.pres_type'});
	for (my $i=0;$i<=$#markers;$i++) {
	    $message.=&storeparm(split(/\&/,$markers[$i]),
				 $values[$i],
				 $types[$i],
				 $uname,$udom,$csec);
	}
# ---------------------------------------------------------------- Done storing
	$message.='<h3>'.&mt('Changes can take up to 10 minutes before being active for all students.').&Apache::loncommon::help_open_topic('Caching').'</h3>';
    }
#----------------------------------------------- if all selected, fill in array
    if ($pscat[0] eq "all") {@pscat = (keys %allparms);}
    if (!@pscat) { @pscat=('duedate','opendate','answerdate','weight','maxtries') }; 
    if ($psprt[0] eq "all" || !@psprt) {@psprt = (keys %allparts);}
# ------------------------------------------------------------------ Start page

    &startpage($r);

    foreach ('tolerance','date_default','date_start','date_end',
	     'date_interval','int','float','string') {
	$r->print('<input type="hidden" value="'.
		  $env{'form.recent_'.$_}.'" name="recent_'.$_.'">');
    }
                        
    if (!$pssymb) {
        $r->print('<table border="1"><tr><td>');
        &levelmenu($r,\%alllevs,$parmlev);
	if ($parmlev ne 'general') {
            $r->print('<td>');
	    &mapmenu($r,\%allmaps,$pschp,\%maptitles);
	    $r->print('</td>');
	}
        $r->print('</td></tr></table>');
	&displaymenu($r,\%allparms,\%allparts,\@pscat,\@psprt,\%keyorder);
    } else {
        my ($map,$id,$resource)=&Apache::lonnet::decode_symb($pssymb);
        $r->print(&mt('Specific Resource').": ".$resource.
                  '<input type="hidden" value="'.$pssymb.'" name="symb"><br />');
    }
    &usermenu($r,$uname,$id,$udom,$csec);    

    $r->print('<p>'.$message.'</p>');

    $r->print('<br /><input type="submit" name="dis" value="'.&mt("Update Parameter Display").'" />');

    my @temp_pscat;
    map {
        my $cat = $_;
        push(@temp_pscat, map { $_.'.'.$cat } @psprt);
    } @pscat;

    @pscat = @temp_pscat;

    if (($env{'form.prevvisit'}) || ($pschp) || ($pssymb)) {
# ----------------------------------------------------------------- Start Table
        my @catmarker=map { tr|.|_|; 'parameter_'.$_; } @pscat;
        my $csuname=$env{'user.name'};
        my $csudom=$env{'user.domain'};

        if ($parmlev eq 'full') {
           my $coursespan=$csec?8:5;
           $r->print('<p><table border=2>');
           $r->print('<tr><td colspan=5></td>');
           $r->print('<th colspan='.($coursespan).'>'.&mt('Any User').'</th>');
           if ($uname) {
               $r->print("<th colspan=3 rowspan=2>");
               $r->print(&mt("User")." $uname ".&mt('at Domain')." $udom</th>");
           }
	   my %lt=&Apache::lonlocal::texthash(
				  'pie'    => "Parameter in Effect",
				  'csv'    => "Current Session Value",
                                  'at'     => 'at',
                                  'rl'     => "Resource Level",
				  'ic'     => 'in Course',
				  'aut'    => "Assessment URL and Title",
				  'type'   => 'Type',
				  'emof'   => "Enclosing Map or Folder",
				  'part'   => 'Part',
                                  'pn'     => 'Parameter Name',
				  'def'    => 'default',
				  'femof'  => 'from Enclosing Map or Folder',
				  'gen'    => 'general',
				  'foremf' => 'for Enclosing Map or Folder',
				  'fr'     => 'for Resource'
					      );
           $r->print(<<ENDTABLETWO);
<th rowspan=3>$lt{'pie'}</th>
<th rowspan=3>$lt{'csv'}<br>($csuname $lt{'at'} $csudom)</th>
</tr><tr><td colspan=5></td><th colspan=2>$lt{'ic'}</th><th colspan=2>$lt{'rl'}</th>
<th colspan=1>$lt{'ic'}</th>

ENDTABLETWO
           if ($csec) {
                $r->print("<th colspan=3>".
			  &mt("in Section/Group")." $csec</th>");
           }
           $r->print(<<ENDTABLEHEADFOUR);
</tr><tr><th>$lt{'aut'}</th><th>$lt{'type'}</th>
<th>$lt{'emof'}</th><th>$lt{'part'}</th><th>$lt{'pn'}</th>
<th>$lt{'gen'}</th><th>$lt{'foremf'}</th>
<th>$lt{'def'}</th><th>$lt{'femof'}</th><th>$lt{'fr'}</th>
ENDTABLEHEADFOUR

           if ($csec) {
               $r->print('<th>'.&mt('general').'</th><th>'.&mt('for Enclosing Map or Folder').'</th><th>'.&mt('for Resource').'</th>');
           }

           if ($uname) {
               $r->print('<th>'.&mt('general').'</th><th>'.&mt('for Enclosing Map or Folder').'</th><th>'.&mt('for Resource').'</th>');
           }

           $r->print('</tr>');

           my $defbgone='';
           my $defbgtwo='';

           foreach (@ids) {

                my $rid=$_;
                my ($inmapid)=($rid=~/\.(\d+)$/);

                if ((!$pssymb && 
		     (($pschp eq 'all') || ($allmaps{$pschp} eq $mapp{$rid})))
		    ||
		    ($pssymb && $pssymb eq $symbp{$rid})) {
# ------------------------------------------------------ Entry for one resource
                    if ($defbgone eq '"#E0E099"') {
                        $defbgone='"#E0E0DD"';
                    } else {
                        $defbgone='"#E0E099"';
                    }
                    if ($defbgtwo eq '"#FFFF99"') {
                        $defbgtwo='"#FFFFDD"';
                    } else {
                        $defbgtwo='"#FFFF99"';
                    }
                    my $thistitle='';
                    my %name=   ();
                    undef %name;
                    my %part=   ();
                    my %display=();
                    my %type=   ();
                    my %default=();
                    my $uri=&Apache::lonnet::declutter($uris{$rid});

                    foreach (&keysplit($keyp{$rid})) {
                        my $tempkeyp = $_;
                        if (grep $_ eq $tempkeyp, @catmarker) {
                          $part{$_}=&Apache::lonnet::metadata($uri,$_.'.part');
                          $name{$_}=&Apache::lonnet::metadata($uri,$_.'.name');
                          $display{$_}=&Apache::lonnet::metadata($uri,$_.'.display');
                          unless ($display{$_}) { $display{$_}=''; }
                          $display{$_}.=' ('.$name{$_}.')';
                          $default{$_}=&Apache::lonnet::metadata($uri,$_);
                          $type{$_}=&Apache::lonnet::metadata($uri,$_.'.type');
                          $thistitle=&Apache::lonnet::metadata($uri,$_.'.title');
                        }
                    }
                    my $totalparms=scalar keys %name;
                    if ($totalparms>0) {
                        my $firstrow=1;
			my $title=&Apache::lonnet::gettitle($uri);
                        $r->print('<tr><td bgcolor='.$defbgone.
                             ' rowspan='.$totalparms.
                             '><tt><font size=-1>'.
                             join(' / ',split(/\//,$uri)).
                             '</font></tt><p><b>'.
                             "<a href=\"javascript:openWindow('".
				  &Apache::lonnet::clutter($uri).
                             "', 'metadatafile', '450', '500', 'no', 'yes')\";".
                             " TARGET=_self>$title");

                        if ($thistitle) {
                            $r->print(' ('.$thistitle.')');
                        }
                        $r->print('</a></b></td>');
                        $r->print('<td bgcolor='.$defbgtwo.
                                      ' rowspan='.$totalparms.'>'.$typep{$rid}.
                                      '</td>');

                        $r->print('<td bgcolor='.$defbgone.
                                      ' rowspan='.$totalparms.
                                      '><tt><font size=-1>');

                        $r->print(' / res / ');
                        $r->print(join(' / ', split(/\//,$mapp{$rid})));

                        $r->print('</font></tt></td>');

                        foreach (&keysinorder(\%name,\%keyorder)) {
                            unless ($firstrow) {
                                $r->print('<tr>');
                            } else {
                                undef $firstrow;
                            }

                            &print_row($r,$_,\%part,\%name,\%symbp,$rid,\%default,
                                       \%type,\%display,$defbgone,$defbgtwo,
                                       $parmlev,$uname,$udom,$csec);
                        }
                    }
                }
            } # end foreach ids
# -------------------------------------------------- End entry for one resource
            $r->print('</table>');
        } # end of  full
#--------------------------------------------------- Entry for parm level map
        if ($parmlev eq 'map') {
            my $defbgone = '"E0E099"';
            my $defbgtwo = '"FFFF99"';

            my %maplist;

            if ($pschp eq 'all') {
                %maplist = %allmaps; 
            } else {
                %maplist = ($pschp => $mapp{$pschp});
            }

#-------------------------------------------- for each map, gather information
            my $mapid;
	    foreach $mapid (sort {$maplist{$a} cmp $maplist{$b}} keys %maplist) {
                my $maptitle = $maplist{$mapid};

#-----------------------  loop through ids and get all parameter types for map
#-----------------------------------------          and associated information
                my %name = ();
                my %part = ();
                my %display = ();
                my %type = ();
                my %default = ();
                my $map = 0;

#		$r->print("Catmarker: @catmarker<br />\n");
               
                foreach (@ids) {
                  ($map)=(/([\d]*?)\./);
                  my $rid = $_;
        
#                  $r->print("$mapid:$map:   $rid <br /> \n");

                  if ($map eq $mapid) {
                    my $uri=&Apache::lonnet::declutter($uris{$rid});
#                    $r->print("Keys: $keyp{$rid} <br />\n");

#--------------------------------------------------------------------
# @catmarker contains list of all possible parameters including part #s
# $fullkeyp contains the full part/id # for the extraction of proper parameters
# $tempkeyp contains part 0 only (no ids - ie, subparts)
# When storing information, store as part 0
# When requesting information, request from full part
#-------------------------------------------------------------------
                    foreach (&keysplit($keyp{$rid})) {
                      my $tempkeyp = $_;
                      my $fullkeyp = $tempkeyp;
                      $tempkeyp =~ s/_\w+_/_0_/;
                      
                      if ((grep $_ eq $fullkeyp, @catmarker) &&(!$name{$tempkeyp})) {
                        $part{$tempkeyp}="0";
                        $name{$tempkeyp}=&Apache::lonnet::metadata($uri,$fullkeyp.'.name');
                        $display{$tempkeyp}=&Apache::lonnet::metadata($uri,$fullkeyp.'.display');
                        unless ($display{$tempkeyp}) { $display{$tempkeyp}=''; }
                        $display{$tempkeyp}.=' ('.$name{$tempkeyp}.')';
                        $display{$tempkeyp} =~ s/_\w+_/_0_/;
                        $default{$tempkeyp}=&Apache::lonnet::metadata($uri,$fullkeyp);
                        $type{$tempkeyp}=&Apache::lonnet::metadata($uri,$fullkeyp.'.type');
                      }
                    } # end loop through keys
                  }
                } # end loop through ids
                                 
#---------------------------------------------------- print header information
                my $foldermap=&mt($maptitle=~/^uploaded/?'Folder':'Map');
                my $showtitle=$maptitles{$maptitle}.($maptitle!~/^uploaded/?' ['.$maptitle.']':'');
                $r->print(<<ENDMAPONE);
<center><h4>
Set Defaults for All Resources in $foldermap<br />
<font color="red"><i>$showtitle</i></font><br />
Specifically for
ENDMAPONE
                if ($uname) {
                    my %name=&Apache::lonnet::userenvironment($udom,$uname,
                      ('firstname','middlename','lastname','generation', 'id'));
                    my $person=$name{'firstname'}.' '.$name{'middlename'}.' '
                           .$name{'lastname'}.' '.$name{'generation'};
                    $r->print(&mt("User")." <font color=\"red\"><i>$uname \($person\) </i></font> ".
                        &mt('in')." \n");
                } else {
                    $r->print("<font color=\"red\"><i>".&mt('all').'</i></font> '.&mt('users in')." \n");
                }
            
                if ($csec) {$r->print(&mt("Section")." <font color=\"red\"><i>$csec</i></font> ".
				      &mt('of')." \n")};

                $r->print("<font color=\"red\"><i>$coursename</i></font><br />");
                $r->print("</h4>\n");
#---------------------------------------------------------------- print table
                $r->print('<p><table border="2">');
                $r->print('<tr><th>'.&mt('Parameter Name').'</th>');
                $r->print('<th>'.&mt('Default Value').'</th>');
                $r->print('<th>'.&mt('Parameter in Effect').'</th></tr>');

	        foreach (&keysinorder(\%name,\%keyorder)) {
                    $r->print('<tr>');
                    &print_row($r,$_,\%part,\%name,\%symbp,$mapid,\%default,
                           \%type,\%display,$defbgone,$defbgtwo,
                           $parmlev,$uname,$udom,$csec);
                }
                $r->print("</table></center>");
            } # end each map
        } # end of $parmlev eq map
#--------------------------------- Entry for parm level general (Course level)
        if ($parmlev eq 'general') {
            my $defbgone = '"E0E099"';
            my $defbgtwo = '"FFFF99"';

#-------------------------------------------- for each map, gather information
            my $mapid="0.0";
#-----------------------  loop through ids and get all parameter types for map
#-----------------------------------------          and associated information
            my %name = ();
            my %part = ();
            my %display = ();
            my %type = ();
            my %default = ();
               
            foreach (@ids) {
                my $rid = $_;
        
                my $uri=&Apache::lonnet::declutter($uris{$rid});

#--------------------------------------------------------------------
# @catmarker contains list of all possible parameters including part #s
# $fullkeyp contains the full part/id # for the extraction of proper parameters
# $tempkeyp contains part 0 only (no ids - ie, subparts)
# When storing information, store as part 0
# When requesting information, request from full part
#-------------------------------------------------------------------
                foreach (&keysplit($keyp{$rid})) {
                  my $tempkeyp = $_;
                  my $fullkeyp = $tempkeyp;
                  $tempkeyp =~ s/_\w+_/_0_/;
                  if ((grep $_ eq $fullkeyp, @catmarker) &&(!$name{$tempkeyp})) {
                    $part{$tempkeyp}="0";
                    $name{$tempkeyp}=&Apache::lonnet::metadata($uri,$fullkeyp.'.name');
                    $display{$tempkeyp}=&Apache::lonnet::metadata($uri,$fullkeyp.'.display');
                    unless ($display{$tempkeyp}) { $display{$tempkeyp}=''; }
                    $display{$tempkeyp}.=' ('.$name{$tempkeyp}.')';
                    $display{$tempkeyp} =~ s/_\w+_/_0_/;
                    $default{$tempkeyp}=&Apache::lonnet::metadata($uri,$fullkeyp);
                    $type{$tempkeyp}=&Apache::lonnet::metadata($uri,$fullkeyp.'.type');
                  }
                } # end loop through keys
            } # end loop through ids
                                 
#---------------------------------------------------- print header information
	    my $setdef=&mt("Set Defaults for All Resources in Course");
            $r->print(<<ENDMAPONE);
<center><h4>$setdef
<font color="red"><i>$coursename</i></font><br />
ENDMAPONE
            if ($uname) {
                my %name=&Apache::lonnet::userenvironment($udom,$uname,
                  ('firstname','middlename','lastname','generation', 'id'));
                my $person=$name{'firstname'}.' '.$name{'middlename'}.' '
                       .$name{'lastname'}.' '.$name{'generation'};
                $r->print(" ".&mt("User")."<font color=\"red\"> <i>$uname \($person\) </i></font> \n");
            } else {
                $r->print("<i><font color=\"red\"> ".&mt("ALL")."</i> ".&mt("USERS")."</font> \n");
            }
            
            if ($csec) {$r->print(&mt("Section")."<font color=\"red\"> <i>$csec</i></font>\n")};
            $r->print("</h4>\n");
#---------------------------------------------------------------- print table
            $r->print('<p><table border="2">');
            $r->print('<tr><th>'.&mt('Parameter Name').'</th>');
            $r->print('<th>'.&mt('Default Value').'</th>');
            $r->print('<th>'.&mt('Parameter in Effect').'</th></tr>');

	    foreach (&keysinorder(\%name,\%keyorder)) {
                $r->print('<tr>');
                &print_row($r,$_,\%part,\%name,\%symbp,$mapid,\%default,
                       \%type,\%display,$defbgone,$defbgtwo,$parmlev,$uname,$udom,$csec);
            }
            $r->print("</table></center>");
        } # end of $parmlev eq general
    }
    $r->print('</form></body></html>');
} # end sub assessparms


##################################################
##################################################

=pod

=item crsenv

Show and set course data and parameters.  This is a large routine that should
be simplified and shortened... someday.

Inputs: $r

Returns: nothing

=cut

##################################################
##################################################
sub crsenv {
    my $r=shift;
    my $setoutput='';
    my $bodytag=&Apache::loncommon::bodytag(
                             'Set Course Environment Parameters');
    my $breadcrumbs = &Apache::lonhtmlcommon::breadcrumbs(undef,
						    'Edit Course Environment');
    my $dom = $env{'course.'.$env{'request.course.id'}.'.domain'};
    my $crs = $env{'course.'.$env{'request.course.id'}.'.num'};

    #
    # Go through list of changes
    foreach (keys %env) {
        next if ($_!~/^form\.(.+)\_setparmval$/);
        my $name  = $1;
        my $value = $env{'form.'.$name.'_value'};
        if ($name eq 'newp') {
            $name = $env{'form.newp_name'};
        }
        if ($name eq 'url') {
            $value=~s/^\/res\///;
            my $bkuptime=time;
            my @tmp = &Apache::lonnet::get
                ('environment',['url'],$dom,$crs);
            $setoutput.=&mt('Backing up previous URL').': '.
                &Apache::lonnet::put
                ('environment',
                 {'top level map backup '.$bkuptime => $tmp[1] },
                 $dom,$crs).
                     '<br>';
        }
        #
        # Deal with modified default spreadsheets
        if ($name =~ /^spreadsheet_default_(classcalc|
                                            studentcalc|
                                            assesscalc)$/x) {
            my $sheettype = $1; 
            if ($sheettype eq 'classcalc') {
                # no need to do anything since viewing the sheet will
                # cause it to be updated. 
            } elsif ($sheettype eq 'studentcalc') {
                # expire all the student spreadsheets
                &Apache::lonnet::expirespread('','','studentcalc');
            } else {
                # expire all the assessment spreadsheets 
                #    this includes non-default spreadsheets, but better to
                #    be safe than sorry.
                &Apache::lonnet::expirespread('','','assesscalc');
                # expire all the student spreadsheets
                &Apache::lonnet::expirespread('','','studentcalc');
            }
        }
        #
        # Deal with the enrollment dates
        if ($name =~ /^default_enrollment_(start|end)_date$/) {
            $value=&Apache::lonhtmlcommon::get_date_from_form($name.'_value');
        }
        # Get existing cloners
        my @oldcloner = ();
        if ($name eq 'cloners') {
            my %clonenames=&Apache::lonnet::dump('environment',$dom,$crs,'cloners');
            if ($clonenames{'cloners'} =~ /,/) {
                @oldcloner = split/,/,$clonenames{'cloners'};
            } else {
                $oldcloner[0] = $clonenames{'cloners'};
            }
        }
        #
        # Let the user know we made the changes
        if ($name && defined($value)) {
            if ($name eq 'cloners') {
                $value =~ s/^,//;
                $value =~ s/,$//;
            }
            my $put_result = &Apache::lonnet::put('environment',
                                                  {$name=>$value},$dom,$crs);
            if ($put_result eq 'ok') {
                $setoutput.=&mt('Set').' <b>'.$name.'</b> '.&mt('to').' <b>'.$value.'</b>.<br />';
                if ($name eq 'cloners') {
                    &change_clone($value,\@oldcloner);
                }
                # Flush the course logs so course description is immediately updated
                if ($name eq 'description' && defined($value)) {
                    &Apache::lonnet::flushcourselogs();
                }
            } else {
                $setoutput.=&mt('Unable to set').' <b>'.$name.'</b> '.&mt('to').
		    ' <b>'.$value.'</b> '.&mt('due to').' '.$put_result.'.<br />';
            }
        }
    }
# ------------------------- Re-init course environment entries for this session

    &Apache::lonnet::coursedescription($env{'request.course.id'});

# -------------------------------------------------------- Get parameters again

    my %values=&Apache::lonnet::dump('environment',$dom,$crs);
    my $SelectStyleFile=&mt('Select Style File');
    my $SelectSpreadsheetFile=&mt('Select Spreadsheet File');
    my $output='';
    if (! exists($values{'con_lost'})) {
        my %descriptions=
	    ('url'            => '<b>'.&mt('Top Level Map').'</b> '.
                                 '<a href="javascript:openbrowser'.
                                 "('envform','url','sequence')\">".
                                 &mt('Select Map').'</a><br /><font color=red> '.
                                 &mt('Modification may make assessment data inaccessible').
                                 '</font>',
             'description'    => '<b>'.&mt('Course Description').'</b>',
             'courseid'       => '<b>'.&mt('Course ID or number').
                                 '</b><br />'.
                                 '('.&mt('internal').', '.&mt('optional').')',
             'cloners'        => '<b>'.&mt('Users allowed to clone course').'</b><br /><tt>(user:domain,user:domain)</tt><br />'.&mt('Users with active Course Coordinator role in the course automatically have the right to clone it, and can be omitted from list.'),
             'grading'        => '<b>'.&mt('Grading').'</b><br />'.
                                 '<tt>"standard", "external", or "spreadsheet"</tt> '.&Apache::loncommon::help_open_topic('GradingOptions'),
             'default_xml_style' => '<b>'.&mt('Default XML Style File').'</b> '.
                    '<a href="javascript:openbrowser'.
                    "('envform','default_xml_style'".
                    ",'sty')\">$SelectStyleFile</a><br>",
             'question.email' => '<b>'.&mt('Feedback Addresses for Resource Content Question').
                                 '</b><br />(<tt>user:domain,'.
                                 'user:domain(section;section;...;*;...),...</tt>)',
             'comment.email'  => '<b>'.&mt('Feedback Addresses for Course Content Comments').'</b><br />'.
                                 '(<tt>user:domain,user:domain(section;section;...;*;...),...</tt>)',
             'policy.email'   => '<b>'.&mt('Feedback Addresses for Course Policy').'</b>'.
                                 '<br />(<tt>user:domain,user:domain(section;section;...;*;...),...</tt>)',
             'hideemptyrows'  => '<b>'.&mt('Hide Empty Rows in Spreadsheets').'</b><br />'.
                                 '('.&mt('"[_1]" for default hiding','<tt>yes</tt>').')',
             'pageseparators'  => '<b>'.&mt('Visibly Separate Items on Pages').'</b><br />'.
                                 '('.&mt('"[_1]" for visible separation','<tt>yes</tt>').', '.
                                 &mt('changes will not show until next login').')',
             'student_classlist_view' => '<b>'.&mt('Allow students to view classlist.').'</b>'.&mt('("all":students can view all sections,"section":students can only view their own section.blank or "disabled" prevents student view.'),

             'plc.roles.denied'=> '<b>'.&mt('Disallow live chatroom use for Roles').
                                  '</b><br />"<tt>st</tt>": '.
                                  &mt('student').', "<tt>ta</tt>": '.
                                  'TA, "<tt>in</tt>": '.
                                  &mt('instructor').';<br /><tt>'.&mt('role,role,...').'</tt>) '.
	       Apache::loncommon::help_open_topic("Course_Disable_Discussion"),
             'plc.users.denied' => 
                          '<b>'.&mt('Disallow live chatroom use for Users').'</b><br />'.
                                 '(<tt>user:domain,user:domain,...</tt>)',

             'pch.roles.denied'=> '<b>'.&mt('Disallow Resource Discussion for Roles').
                                  '</b><br />"<tt>st</tt>": '.
                                  'student, "<tt>ta</tt>": '.
                                  'TA, "<tt>in</tt>": '.
                                  'instructor;<br /><tt>role,role,...</tt>) '.
	       Apache::loncommon::help_open_topic("Course_Disable_Discussion"),
             'pch.users.denied' => 
                          '<b>'.&mt('Disallow Resource Discussion for Users').'</b><br />'.
                                 '(<tt>user:domain,user:domain,...</tt>)',
             'spreadsheet_default_classcalc' 
                 => '<b>'.&mt('Default Course Spreadsheet').'</b> '.
                    '<a href="javascript:openbrowser'.
                    "('envform','spreadsheet_default_classcalc'".
                    ",'spreadsheet')\">$SelectSpreadsheetFile</a><br />",
             'spreadsheet_default_studentcalc' 
                 => '<b>'.&mt('Default Student Spreadsheet').'</b> '.
                    '<a href="javascript:openbrowser'.
                    "('envform','spreadsheet_default_calc'".
                    ",'spreadsheet')\">$SelectSpreadsheetFile</a><br />",
             'spreadsheet_default_assesscalc' 
                 => '<b>'.&mt('Default Assessment Spreadsheet').'</b> '.
                    '<a href="javascript:openbrowser'.
                    "('envform','spreadsheet_default_assesscalc'".
                    ",'spreadsheet')\">$SelectSpreadsheetFile</a><br />",
	     'allow_limited_html_in_feedback'
	         => '<b>'.&mt('Allow limited HTML in discussion posts').'</b><br />'.
	            '('.&mt('Set value to "[_1]" to allow',"<tt>yes</tt>").')',
             'allow_discussion_post_editing'
                 => '<b>'.&mt('Allow users to edit/delete their own discussion posts').'</b><br />'.
                    '('.&mt('Set value to "[_1]" to allow',"<tt>yes</tt>").')',
	     'rndseed'
	         => '<b>'.&mt('Randomization algorithm used').'</b> <br />'.
                    '<font color="red">'.&mt('Modifying this will make problems').' '.
                    &mt('have different numbers and answers').'</font>',
	     'receiptalg'
	         => '<b>'.&mt('Receipt algorithm used').'</b> <br />'.
                    &mt('This controls how receipt numbers are generated.'),
             'suppress_tries'
                 => '<b>'.&mt('Suppress number of tries in printing').'</b>('.
                    &mt('yes if supress').')',
             'problem_stream_switch'
                 => '<b>'.&mt('Allow problems to be split over pages').'</b><br />'.
                    ' ('.&mt('"[_1]" if allowed, anything else if not','<tt>yes</tt>').')',
             'default_paper_size' 
                 => '<b>'.&mt('Default paper type').'</b><br />'.
                    ' ('.&mt('supported types').': Letter [8 1/2x11 in], Legal [8 1/2x14 in],'. 
                    ' Tabloid [11x17 in], Executive [7 1/2x10 in], A2 [420x594 mm],'. 
                    ' A3 [297x420 mm], A4 [210x297 mm], A5 [148x210 mm], A6 [105x148 mm])',
             'anonymous_quiz'
                 => '<b>'.&mt('Anonymous quiz/exam').'</b><br />'.
                    ' (<tt><b>'.&mt('yes').'</b> '.&mt('to avoid print students names').' </tt>)',
             'default_enrollment_start_date' => '<b>'.&mt('Default beginning date for student access.').'</b>',
             'default_enrollment_end_date'   => '<b>'.&mt('Default ending date for student access.').'</b>',
             'nothideprivileged'   => '<b>'.&mt('Privileged users that should not be hidden on staff listings').'</b>'.
                                 '<br />(<tt>user:domain,user:domain,...</tt>)',
             'languages' => '<b>'.&mt('Languages used').'</b>',
             'disable_receipt_display'
                 => '<b>'.&mt('Disable display of problem receipts').'</b><br />'.
                    ' ('.&mt('"[_1]" to disable, anything else if not','<tt>yes</tt>').')',
	     'disablesigfigs'
	         => '<b>'.&mt('Disable checking of Significant Figures').'</b><br />'.
                    ' ('.&mt('"[_1]" to disable, anything else if not','<tt>yes</tt>').')',
	     'tthoptions'
	         => '<b>'.&mt('Default set of options to pass to tth/m when converting tex').'</b>'
             ); 
        my @Display_Order = ('url','description','courseid','cloners','grading',
                             'default_xml_style','pageseparators',
                             'question.email','comment.email','policy.email',
                             'student_classlist_view',
                             'plc.roles.denied','plc.users.denied',
                             'pch.roles.denied','pch.users.denied',
                             'allow_limited_html_in_feedback',
                             'allow_discussion_post_editing',
                             'languages',
			     'nothideprivileged',
                             'rndseed',
                             'receiptalg',
                             'problem_stream_switch',
			     'suppress_tries',
                             'default_paper_size',
                             'disable_receipt_display',
                             'spreadsheet_default_classcalc',
                             'spreadsheet_default_studentcalc',
                             'spreadsheet_default_assesscalc', 
                             'hideemptyrows',
                             'default_enrollment_start_date',
                             'default_enrollment_end_date',
			     'tthoptions',
			     'disablesigfigs'
                             );
	foreach my $parameter (sort(keys(%values))) {
            unless ($parameter =~ m/^internal\./) {
                if (! $descriptions{$parameter}) {
                    $descriptions{$parameter}=$parameter;
                    push(@Display_Order,$parameter);
                }
            }
	}
        foreach my $parameter (@Display_Order) {
            my $description = $descriptions{$parameter};
            # onchange is javascript to automatically check the 'Set' button.
            my $onchange = 'onFocus="javascript:window.document.forms'.
                "['envform'].elements['".$parameter."_setparmval']".
                '.checked=true;"';
            $output .= '<tr><td>'.$description.'</td>';
            if ($parameter =~ /^default_enrollment_(start|end)_date$/) {
                $output .= '<td>'.
                    &Apache::lonhtmlcommon::date_setter('envform',
                                                        $parameter.'_value',
                                                        $values{$parameter},
                                                        $onchange).
                                                        '</td>';
            } else {
                $output .= '<td>'.
                    &Apache::lonhtmlcommon::textbox($parameter.'_value',
                                                    $values{$parameter},
                                                    40,$onchange).'</td>';
            }
            $output .= '<td>'.
                &Apache::lonhtmlcommon::checkbox($parameter.'_setparmval').
                '</td>';
            $output .= "</tr>\n";
	}
        my $onchange = 'onFocus="javascript:window.document.forms'.
            '[\'envform\'].elements[\'newp_setparmval\']'.
            '.checked=true;"';
	$output.='<tr><td><i>'.&mt('Create New Environment Variable').'</i><br />'.
	    '<input type="text" size=40 name="newp_name" '.
                $onchange.' /></td><td>'.
            '<input type="text" size=40 name="newp_value" '.
                $onchange.' /></td><td>'.
	    '<input type="checkbox" name="newp_setparmval" /></td></tr>';
    }
    my %lt=&Apache::lonlocal::texthash(
		    'par'   => 'Parameter',
		    'val'   => 'Value',
		    'set'   => 'Set',
		    'sce'   => 'Set Course Environment'
				       );

    my $Parameter=&mt('Parameter');
    my $Value=&mt('Value');
    my $Set=&mt('Set');
    my $browse_js=&Apache::loncommon::browser_and_searcher_javascript('parmset');
    my $html=&Apache::lonxml::xmlbegin();
    $r->print(<<ENDenv);
$html
<head>
<script type="text/javascript" language="Javascript" >
$browse_js
</script>
<title>LON-CAPA Course Environment</title>
</head>
$bodytag
$breadcrumbs
<form method="post" action="/adm/parmset?action=crsenv" name="envform">
$setoutput
<p>
<table border=2>
<tr><th>$lt{'par'}</th><th>$lt{'val'}</th><th>$lt{'set'}?</th></tr>
$output
</table>
<input type="submit" name="crsenv" value="$lt{'sce'}">
</form>
</body>
</html>    
ENDenv
}
##################################################
# Overview mode
##################################################
my $tableopen;

sub tablestart {
    if ($tableopen) {
	return '';
    } else {
	$tableopen=1;
	return '<table border="2"><tr><th>'.&mt('Parameter').'</th><th>'.
	    &mt('Delete').'</th><th>'.&mt('Set to ...').'</th></tr>';
    }
}

sub tableend {
    if ($tableopen) {
	$tableopen=0;
	return '</table>';
    } else {
	return'';
    }
}

sub readdata {
    my ($crs,$dom)=@_;
# Read coursedata
    my $resourcedata=&Apache::lonnet::get_courseresdata($crs,$dom);
# Read userdata

    my $classlist=&Apache::loncoursedata::get_classlist();
    foreach (keys %$classlist) {
        # the following undefs are for 'domain', and 'username' respectively.
        if ($_=~/^(\w+)\:(\w+)$/) {
	    my ($tuname,$tudom)=($1,$2);
	    my $useropt=&Apache::lonnet::get_userresdata($tuname,$tudom);
            foreach my $userkey (keys %{$useropt}) {
		if ($userkey=~/^$env{'request.course.id'}/) {
                    my $newkey=$userkey;
		    $newkey=~s/^($env{'request.course.id'}\.)/$1\[useropt\:$tuname\:$tudom\]\./;
		    $$resourcedata{$newkey}=$$useropt{$userkey};
		}
	    }
	}
    }
    return $resourcedata;
}


# Setting

sub storedata {
    my ($r,$crs,$dom)=@_;
# Set userlevel immediately
# Do an intermediate store of course level
    my $olddata=&readdata($crs,$dom);
    my %newdata=();
    undef %newdata;
    my @deldata=();
    undef @deldata;
    foreach (keys %env) {
	if ($_=~/^form\.([a-z]+)\_(.+)$/) {
	    my $cmd=$1;
	    my $thiskey=$2;
	    my ($tuname,$tudom)=&extractuser($thiskey);
	    my $tkey=$thiskey;
            if ($tuname) {
		$tkey=~s/\.\[useropt\:$tuname\:$tudom\]\./\./;
	    }
	    if ($cmd eq 'set') {
		my $data=$env{$_};
                my $typeof=$env{'form.typeof_'.$thiskey};
 		if ($$olddata{$thiskey} ne $data) { 
		    if ($tuname) {
			if (&Apache::lonnet::put('resourcedata',{$tkey=>$data,
								 $tkey.'.type' => $typeof},
						 $tudom,$tuname) eq 'ok') {
			    $r->print('<br />'.&mt('Stored modified parameter for').' '.
				      &Apache::loncommon::plainname($tuname,$tudom));
			} else {
			    $r->print('<h2><font color="red">'.
				      &mt('Error storing parameters').'</font></h2>');
			}
			&Apache::lonnet::devalidateuserresdata($tuname,$tudom);
		    } else {
			$newdata{$thiskey}=$data;
 			$newdata{$thiskey.'.type'}=$typeof; 
                   } 
		}
	    } elsif ($cmd eq 'del') {
		if ($tuname) {
		    if (&Apache::lonnet::del('resourcedata',[$tkey],$tudom,$tuname) eq 'ok') {
			$r->print('<br />'.&mt('Deleted parameter for').' '.&Apache::loncommon::plainname($tuname,$tudom));
		    } else {
			$r->print('<h2><font color="red">'.
				  &mt('Error deleting parameters').'</font></h2>');
		    }
		    &Apache::lonnet::devalidateuserresdata($tuname,$tudom);
		} else {
		    push (@deldata,$thiskey);
		}
	    } elsif ($cmd eq 'datepointer') {
		my $data=&Apache::lonhtmlcommon::get_date_from_form($env{$_});
                my $typeof=$env{'form.typeof_'.$thiskey};
		if (defined($data) and $$olddata{$thiskey} ne $data) { 
		    if ($tuname) {
			if (&Apache::lonnet::put('resourcedata',{$tkey=>$data,
								 $tkey.'.type' => $typeof},
						 $tudom,$tuname) eq 'ok') {
			    $r->print('<br />'.&mt('Stored modified date for').' '.&Apache::loncommon::plainname($tuname,$tudom));
			} else {
			    $r->print('<h2><font color="red">'.
				      &mt('Error storing parameters').'</font></h2>');
			}
			&Apache::lonnet::devalidateuserresdata($tuname,$tudom);
		    } else {
			$newdata{$thiskey}=$data;
			$newdata{$thiskey.'.type'}=$typeof; 
		    }
		}
	    }
	}
    }
# Store all course level
    my $delentries=$#deldata+1;
    my @newdatakeys=keys %newdata;
    my $putentries=$#newdatakeys+1;
    if ($delentries) {
	if (&Apache::lonnet::del('resourcedata',\@deldata,$dom,$crs) eq 'ok') {
	    $r->print('<h2>'.&mt('Deleted [_1] parameter(s)</h2>',$delentries));
	} else {
	    $r->print('<h2><font color="red">'.
		      &mt('Error deleting parameters').'</font></h2>');
	}
	&Apache::lonnet::devalidatecourseresdata($crs,$dom);
    }
    if ($putentries) {
	if (&Apache::lonnet::put('resourcedata',\%newdata,$dom,$crs) eq 'ok') {
	    $r->print('<h3>'.&mt('Stored [_1] parameter(s)',$putentries/2).'</h3>');
	} else {
	    $r->print('<h2><font color="red">'.
		      &mt('Error storing parameters').'</font></h2>');
	}
	&Apache::lonnet::devalidatecourseresdata($crs,$dom);
    }
}

sub extractuser {
    my $key=shift;
    return ($key=~/^$env{'request.course.id'}.\[useropt\:(\w+)\:(\w+)\]\./);
}

sub listdata {
    my ($r,$resourcedata,$listdata,$sortorder)=@_;
# Start list output

    my $oldsection='';
    my $oldrealm='';
    my $oldpart='';
    my $pointer=0;
    $tableopen=0;
    my $foundkeys=0;
    foreach my $thiskey (sort {
	if ($sortorder eq 'realmstudent') {
	    my ($astudent,$arealm)=($a=~/^$env{'request.course.id'}\.([^\.]+)\.(.+)\.[^\.]+$/);
	    my ($bstudent,$brealm)=($b=~/^$env{'request.course.id'}\.([^\.]+)\.(.+)\.[^\.]+$/);
            ($arealm cmp $brealm) || ($astudent cmp $bstudent);
	} else {
	    $a cmp $b;
	}
    } keys %{$listdata}) {
	if ($$listdata{$thiskey.'.type'}) {
            my $thistype=$$listdata{$thiskey.'.type'};
            if ($$resourcedata{$thiskey.'.type'}) {
		$thistype=$$resourcedata{$thiskey.'.type'};
	    }
	    my ($middle,$part,$name)=
		($thiskey=~/^$env{'request.course.id'}\.(?:(.+)\.)*([\w\s]+)\.(\w+)$/);
	    my $section=&mt('All Students');
	    if ($middle=~/^\[(.*)\]/) {
		my $issection=$1;
		if ($issection=~/^useropt\:(\w+)\:(\w+)/) {
		    $section=&mt('User').": ".&Apache::loncommon::plainname($1,$2);
		} else {
		    $section=&mt('Group/Section').': '.$issection;
		}
		$middle=~s/^\[(.*)\]//;
	    }
	    $middle=~s/\.+$//;
	    $middle=~s/^\.+//;
	    my $realm='<font color="red">'.&mt('All Resources').'</font>';
	    if ($middle=~/^(.+)\_\_\_\(all\)$/) {
		$realm='<font color="green">'.&mt('Folder/Map').': '.&Apache::lonnet::gettitle($1).' <br /><font color="#aaaaaa" size="-2">('.$1.')</font></font>';
	    } elsif ($middle) {
		my ($map,$id,$url)=&Apache::lonnet::decode_symb($middle);
		$realm='<font color="orange">'.&mt('Resource').': '.&Apache::lonnet::gettitle($middle).' <br /><font color="#aaaaaa" size="-2">('.$url.' in '.$map.' id: '.$id.')</font></font>';
	    }
	    if ($sortorder eq 'realmstudent') {
		if ($realm ne $oldrealm) {
		    $r->print(&tableend()."\n<hr /><h1>$realm</h1>");
		    $oldrealm=$realm;
		    $oldsection='';
		}
		if ($section ne $oldsection) {
		    $r->print(&tableend()."\n<h2>$section</h2>");
		    $oldsection=$section;
		    $oldpart='';
		}
	    } else {
		if ($section ne $oldsection) {
		    $r->print(&tableend()."\n<hr /><h1>$section</h1>");
		    $oldsection=$section;
		    $oldrealm='';
		}
		if ($realm ne $oldrealm) {
		    $r->print(&tableend()."\n<h2>$realm</h2>");
		    $oldrealm=$realm;
		    $oldpart='';
		}
	    }
	    if ($part ne $oldpart) {
		$r->print(&tableend().
			  "\n<font color='blue'>".&mt('Part').": $part</font>");
		$oldpart=$part;
	    }
#
# Preset defaults?
#
            my ($hour,$min,$sec,$val)=('','','','');
	    unless ($$resourcedata{$thiskey}) {
		my ($parmname)=($thiskey=~/\.(\w+)$/);
		($hour,$min,$sec,$val)=&preset_defaults($parmname);
	    }

#
# Ready to print
#
	    $r->print(&tablestart().'<tr><td><b>'.$name.
		      ':</b></td><td><input type="checkbox" name="del_'.
		      $thiskey.'" /></td><td>');
	    $foundkeys++;
	    if (&isdateparm($thistype)) {
		my $jskey='key_'.$pointer;
		$pointer++;
		$r->print(
			  &Apache::lonhtmlcommon::date_setter('parmform',
							      $jskey,
						      $$resourcedata{$thiskey},
							      '',1,'','',$hour,$min,$sec).
'<input type="hidden" name="datepointer_'.$thiskey.'" value="'.$jskey.'" />'
			  );
	    } elsif ($thistype eq 'string_yesno') {
		my $showval;
		if (defined($$resourcedata{$thiskey})) {
		    $showval=$$resourcedata{$thiskey};
		} else {
		    $showval=$val;
		}
		$r->print('<label><input type="radio" name="set_'.$thiskey.
			  '" value="yes"');
		if ($showval eq 'yes') {
		    $r->print(' checked="checked"');
		}
                $r->print(' />'.&mt('Yes').'</label> ');
		$r->print('<label><input type="radio" name="set_'.$thiskey.
			  '" value="no"');
		if ($showval eq 'no') {
		    $r->print(' checked="checked"');
		}
                $r->print(' />'.&mt('No').'</label>');
	    } else {
		my $showval;
		if (defined($$resourcedata{$thiskey})) {
		    $showval=$$resourcedata{$thiskey};
		} else {
		    $showval=$val;
		}
		$r->print('<input type="text" name="set_'.$thiskey.'" value="'.
			  $showval.'">');
	    }
	    $r->print('<input type="hidden" name="typeof_'.$thiskey.'" value="'.
		      $thistype.'">');
	    $r->print('</td></tr>');
	}
    }
    return $foundkeys;
}

sub newoverview {
    my $r=shift;
    my $bodytag=&Apache::loncommon::bodytag('Set Parameters');
    my $dom = $env{'course.'.$env{'request.course.id'}.'.domain'};
    my $crs = $env{'course.'.$env{'request.course.id'}.'.num'};
    my $breadcrumbs = &Apache::lonhtmlcommon::breadcrumbs(undef,'Overview');
    my $html=&Apache::lonxml::xmlbegin();
    $r->print(<<ENDOVER);
$html
<head>
<title>LON-CAPA Parameters</title>
</head>
$bodytag
$breadcrumbs
<form method="post" action="/adm/parmset?action=newoverview" name="parmform">
ENDOVER
    my @ids=();
    my %typep=();
    my %keyp=();
    my %allparms=();
    my %allparts=();
    my %allmaps=();
    my %mapp=();
    my %symbp=();
    my %maptitles=();
    my %uris=();
    my %keyorder=&standardkeyorder();
    my %defkeytype=();

    my %alllevs=();
    $alllevs{'Resource Level'}='full';
    $alllevs{'Map/Folder Level'}='map';
    $alllevs{'Course Level'}='general';

    my $csec=$env{'form.csec'};

    my @pscat=&Apache::loncommon::get_env_multiple('form.pscat');
    my $pschp=$env{'form.pschp'};
    my @psprt=&Apache::loncommon::get_env_multiple('form.psprt');
    if (!@psprt) { $psprt[0]='0'; }

    my @selected_sections = 
	&Apache::loncommon::get_env_multiple('form.Section');
    @selected_sections = ('all') if (! @selected_sections);
    foreach (@selected_sections) {
        if ($_ eq 'all') {
            @selected_sections = ('all');
        }
    }

    my $pssymb='';
    my $parmlev='';
 
    unless ($env{'form.parmlev'}) {
        $parmlev = 'map';
    } else {
        $parmlev = $env{'form.parmlev'};
    }

    &extractResourceInformation(\@ids, \%typep,\%keyp, \%allparms, \%allparts, \%allmaps, 
				\%mapp, \%symbp,\%maptitles,\%uris,
				\%keyorder,\%defkeytype);

# Menu to select levels, etc

    $r->print('<table border="1"><tr><td>');
    &levelmenu($r,\%alllevs,$parmlev);
    if ($parmlev ne 'general') {
	$r->print('<td>');
	&mapmenu($r,\%allmaps,$pschp,\%maptitles);
	$r->print('</td>');
    }
    $r->print('</td></tr></table>');

    $r->print('<table border="1"><tr><td>');  
    &parmmenu($r,\%allparms,\@pscat,\%keyorder);
    $r->print('</td><td>');
    &partmenu($r,\%allparts,\@psprt);
    $r->print('</td><td>');
    &sectionmenu($r,\@selected_sections);

    $r->print('</td></tr></table>');
 
    my $sortorder=$env{'form.sortorder'};
    unless ($sortorder) { $sortorder='realmstudent'; }
    &sortmenu($r,$sortorder);

    $r->print('<p><input type="submit" name="dis" value="'.&mt('Display').'" /></p>');

# Build the list data hash from the specified parms

    my $listdata;
    %{$listdata}=();

    foreach my $cat (@pscat) {
	foreach my $section (@selected_sections) {
	    foreach my $part (@psprt) {
                my $rootparmkey=$env{'request.course.id'};
                if (($section ne 'all') && ($section ne 'none') && ($section)) {
		    $rootparmkey.='.['.$section.']';
		}
		if ($parmlev eq 'general') {
# course-level parameter
		    my $newparmkey=$rootparmkey.'.'.$part.'.'.$cat;
		    $$listdata{$newparmkey}=1;
		    $$listdata{$newparmkey.'.type'}=$defkeytype{$cat};
		} elsif ($parmlev eq 'map') {
# map-level parameter
		    foreach my $mapid (keys %allmaps) {
			if (($pschp ne 'all') && ($pschp ne $mapid)) { next; }
			my $newparmkey=$rootparmkey.'.'.$allmaps{$mapid}.'___(all).'.$part.'.'.$cat;
                        $$listdata{$newparmkey}=1;
                        $$listdata{$newparmkey.'.type'}=$defkeytype{$cat};
		    }
		} else {
# resource-level parameter
		    foreach my $rid (@ids) {
			my ($map,$resid,$url)=&Apache::lonnet::decode_symb($symbp{$rid});
			if (($pschp ne 'all') && ($allmaps{$pschp} ne $map)) { next; }
			my $newparmkey=$rootparmkey.'.'.$symbp{$rid}.'.'.$part.'.'.$cat;
                        $$listdata{$newparmkey}=1;
                        $$listdata{$newparmkey.'.type'}=$defkeytype{$cat};
		    }
		}
	    }
	}
    }

    if (($env{'form.store'}) || ($env{'form.dis'})) {

	if ($env{'form.store'}) { &storedata($r,$crs,$dom); }

# Read modified data

	my $resourcedata=&readdata($crs,$dom);

# List data

	&listdata($r,$resourcedata,$listdata,$sortorder);
    }
    $r->print(&tableend().
	     ((($env{'form.store'}) || ($env{'form.dis'}))?'<p><input type="submit" name="store" value="'.&mt('Store').'" /></p>':'').
	      '</form></body></html>');
}

sub overview {
    my $r=shift;
    my $bodytag=&Apache::loncommon::bodytag('Modify Parameters');
    my $dom = $env{'course.'.$env{'request.course.id'}.'.domain'};
    my $crs = $env{'course.'.$env{'request.course.id'}.'.num'};
    my $breadcrumbs = &Apache::lonhtmlcommon::breadcrumbs(undef,'Overview');
    my $html=&Apache::lonxml::xmlbegin();
    $r->print(<<ENDOVER);
$html
<head>
<title>LON-CAPA Parameters</title>
</head>
$bodytag
$breadcrumbs
<form method="post" action="/adm/parmset?action=setoverview" name="parmform">
ENDOVER
# Store modified

    &storedata($r,$crs,$dom);

# Read modified data

    my $resourcedata=&readdata($crs,$dom);


    my $sortorder=$env{'form.sortorder'};
    unless ($sortorder) { $sortorder='realmstudent'; }
    &sortmenu($r,$sortorder);

# List data

    my $foundkeys=&listdata($r,$resourcedata,$resourcedata,$sortorder);

    $r->print(&tableend().'<p>'.
	($foundkeys?'<input type="submit" value="'.&mt('Modify Parameters').'" />':&mt('There are no parameters.')).'</p></form></body></html>');
}

##################################################
##################################################
                                                                                            
=pod
                                                                                            
=item change clone
                                                                                            
Modifies the list of courses a user can clone (stored
in the user's environemnt.db file), called when a
change is made to the list of users allowed to clone
a course.
                                                                                            
Inputs: $action,$cloner
where $action is add or drop, and $cloner is identity of 
user for whom cloning ability is to be changed in course. 
                                                                                            
Returns: 

=cut
                                                                                            
##################################################
##################################################


sub change_clone {
    my ($clonelist,$oldcloner) = @_;
    my ($uname,$udom);
    my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
    my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
    my $clone_crs = $cnum.':'.$cdom;
    
    if ($cnum && $cdom) {
        my @allowclone = ();
        if ($clonelist =~ /,/) {
            @allowclone = split/,/,$clonelist;
        } else {
            $allowclone[0] = $clonelist;
        }
        foreach my $currclone (@allowclone) {
            if (!grep/^$currclone$/,@$oldcloner) {
                ($uname,$udom) = split/:/,$currclone;
                if ($uname && $udom) {
                    unless (&Apache::lonnet::homeserver($uname,$udom) eq 'no_host') {
                        my %currclonecrs = &Apache::lonnet::dump('environment',$udom,$uname,'cloneable');
                        if ($currclonecrs{'cloneable'} !~ /\Q$clone_crs\E/) {
                            if ($currclonecrs{'cloneable'} eq '') {
                                $currclonecrs{'cloneable'} = $clone_crs;
                            } else {
                                $currclonecrs{'cloneable'} .= ','.$clone_crs;
                            }
                            &Apache::lonnet::put('environment',\%currclonecrs,$udom,$uname);
                        }
                    }
                }
            }
        }
        foreach my $oldclone (@$oldcloner) {
            if (!grep/^$oldclone$/,@allowclone) {
                ($uname,$udom) = split/:/,$oldclone;
                if ($uname && $udom) {
                    unless (&Apache::lonnet::homeserver($uname,$udom) eq 'no_host') {
                        my %currclonecrs = &Apache::lonnet::dump('environment',$udom,$uname,'cloneable');
                        my %newclonecrs = ();
                        if ($currclonecrs{'cloneable'} =~ /\Q$clone_crs\E/) {
                            if ($currclonecrs{'cloneable'} =~ /,/) {
                                my @currclonecrs = split/,/,$currclonecrs{'cloneable'};
                                foreach (@currclonecrs) {
                                    unless ($_ eq $clone_crs) {
                                        $newclonecrs{'cloneable'} .= $_.',';
                                    }
                                }
                                $newclonecrs{'cloneable'} =~ s/,$//;
                            } else {
                                $newclonecrs{'cloneable'} = '';
                            }
                            &Apache::lonnet::put('environment',\%newclonecrs,$udom,$uname);
                        }
                    }
                }
            }
        }
    }
}


##################################################
##################################################

=pod

=item * header

Output html header for page

=cut

##################################################
##################################################
sub header {
    my $html=&Apache::lonxml::xmlbegin();
    my $bodytag=&Apache::loncommon::bodytag('Parameter Manager');
    my $title = &mt('LON-CAPA Parameter Manager');
    return(<<ENDHEAD);
$html
<head>
<title>$title</title>
</head>
$bodytag
ENDHEAD
}
##################################################
##################################################
sub print_main_menu {
    my ($r,$parm_permission)=@_;
    #
    $r->print(<<ENDMAINFORMHEAD);
<form method="post" enctype="multipart/form-data"
      action="/adm/parmset" name="studentform">
ENDMAINFORMHEAD
#
    my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
    my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
    my @menu =
        (
          { text => 'Set Course Environment Parameters',
	    action => 'crsenv',
            permission => $parm_permission,
            },
          { text => 'Set/Modify Resource Parameters - Helper Mode',
            url => '/adm/helper/parameter.helper',
            permission => $parm_permission,
            },
          { text => 'Modify Resource Parameters - Overview Mode',
            action => 'setoverview',
            permission => $parm_permission,
            },          
	  { text => 'Set Resource Parameters - Overview Mode',
            action => 'newoverview',
            permission => $parm_permission,
            },
          { text => 'Set/Modify Resource Parameters - Table Mode',
            action => 'settable',
            permission => $parm_permission,
            help => 'Cascading_Parameters',
            },
          { text => 'Set Parameter Setting Default Actions',
            action => 'setdefaults',
            permission => $parm_permission,
            },
          );
    my $menu_html = '';
    foreach my $menu_item (@menu) {
        next if (! $menu_item->{'permission'});
        $menu_html.='<p>';
        $menu_html.='<font size="+1">';
        if (exists($menu_item->{'url'})) {
            $menu_html.=qq{<a href="$menu_item->{'url'}">};
        } else {
            $menu_html.=
                qq{<a href="/adm/parmset?action=$menu_item->{'action'}">};
        }
        $menu_html.= &mt($menu_item->{'text'}).'</a></font>';
        if (exists($menu_item->{'help'})) {
            $menu_html.=
                &Apache::loncommon::help_open_topic($menu_item->{'help'});
        }
        $menu_html.='</p>'.$/;
    }
    $r->print($menu_html);
    return;
}


##################################################

sub defaultsetter {
    my $r=shift;
    my $bodytag=&Apache::loncommon::bodytag('Parameter Setting Default Actions');
    my $dom = $env{'course.'.$env{'request.course.id'}.'.domain'};
    my $crs = $env{'course.'.$env{'request.course.id'}.'.num'};
    my $breadcrumbs = &Apache::lonhtmlcommon::breadcrumbs(undef,'Defaults');
    my $html=&Apache::lonxml::xmlbegin();
    $r->print(<<ENDDEFHEAD);
$html
<head>
<title>LON-CAPA Parameters</title>
</head>
$bodytag
$breadcrumbs
<form method="post" action="/adm/parmset?action=setdefaults" name="defaultform">
ENDDEFHEAD
    my @ids=();
    my %typep=();
    my %keyp=();
    my %allparms=();
    my %allparts=();
    my %allmaps=();
    my %mapp=();
    my %symbp=();
    my %maptitles=();
    my %uris=();
    my %keyorder=&standardkeyorder();
    my %defkeytype=();

    &extractResourceInformation(\@ids, \%typep,\%keyp, \%allparms, \%allparts, \%allmaps, 
				\%mapp, \%symbp,\%maptitles,\%uris,
				\%keyorder,\%defkeytype);
    if ($env{'form.storerules'}) {
	my %newrules=();
	my @delrules=();
	my %triggers=();
	foreach my $key (keys(%env)) {
            if ($key=~/^form\.(\w+)\_action$/) {
		my $tempkey=$1;
		my $action=$env{$key};
                if ($action) {
		    $newrules{$tempkey.'_action'}=$action;
		    if ($action ne 'default') {
			my ($whichaction,$whichparm)=($action=~/^(.*\_)([^\_]+)$/);
			$triggers{$whichparm}.=$tempkey.':';
		    }
		    $newrules{$tempkey.'_type'}=$defkeytype{$tempkey};
		    if (&isdateparm($defkeytype{$tempkey})) {
			$newrules{$tempkey.'_days'}=$env{'form.'.$tempkey.'_days'};
			$newrules{$tempkey.'_hours'}=$env{'form.'.$tempkey.'_hours'};
			$newrules{$tempkey.'_min'}=$env{'form.'.$tempkey.'_min'};
			$newrules{$tempkey.'_sec'}=$env{'form.'.$tempkey.'_sec'};
		    } else {
			$newrules{$tempkey.'_value'}=$env{'form.'.$tempkey.'_value'};
			$newrules{$tempkey.'_triggervalue'}=$env{'form.'.$tempkey.'_triggervalue'};
		    }
		} else {
		    push(@delrules,$tempkey.'_action');
		    push(@delrules,$tempkey.'_type');
		    push(@delrules,$tempkey.'_hours');
		    push(@delrules,$tempkey.'_min');
		    push(@delrules,$tempkey.'_sec');
		    push(@delrules,$tempkey.'_value');
		}
	    }
	}
	foreach my $key (keys %allparms) {
	    $newrules{$key.'_triggers'}=$triggers{$key};
	}
	&Apache::lonnet::put('parmdefactions',\%newrules,$dom,$crs);
	&Apache::lonnet::del('parmdefactions',\@delrules,$dom,$crs);
	&resetrulescache();
    }
    my %lt=&Apache::lonlocal::texthash('days' => 'Days',
				       'hours' => 'Hours',
				       'min' => 'Minutes',
				       'sec' => 'Seconds',
				       'yes' => 'Yes',
				       'no' => 'No');
    my @standardoptions=('','default');
    my @standarddisplay=('',&mt('Default value when manually setting'));
    my @dateoptions=('','default');
    my @datedisplay=('',&mt('Default value when manually setting'));
    foreach my $tempkey (&keysindisplayorder(\%allparms,\%keyorder)) {
	unless ($tempkey) { next; }
	push @standardoptions,'when_setting_'.$tempkey;
	push @standarddisplay,&mt('Automatically set when setting ').$tempkey;
	if (&isdateparm($defkeytype{$tempkey})) {
	    push @dateoptions,'later_than_'.$tempkey;
	    push @datedisplay,&mt('Automatically set later than ').$tempkey;
	    push @dateoptions,'earlier_than_'.$tempkey;
	    push @datedisplay,&mt('Automatically set earlier than ').$tempkey;
	} 
    }
$r->print(&mt('Manual setting rules apply to all interfaces.').'<br />'.
	  &mt('Automatic setting rules apply to table mode interfaces only.'));
    $r->print("\n<table border='1'><tr><th>".&mt('Rule for parameter').'</th><th>'.
	      &mt('Action').'</th><th>'.&mt('Value').'</th></tr>');
    foreach my $tempkey (&keysindisplayorder(\%allparms,\%keyorder)) {
	unless ($tempkey) { next; }
	$r->print("\n<tr><td>".$allparms{$tempkey}."\n<br />(".$tempkey.')</td><td>');
	my $action=&rulescache($tempkey.'_action');
	$r->print('<select name="'.$tempkey.'_action">');
	if (&isdateparm($defkeytype{$tempkey})) {
	    for (my $i=0;$i<=$#dateoptions;$i++) {
		if ($dateoptions[$i]=~/\_$tempkey$/) { next; }
		$r->print("\n<option value='$dateoptions[$i]'".
			  ($dateoptions[$i] eq $action?' selected="selected"':'').
			  ">$datedisplay[$i]</option>");
	    }
	} else {
	    for (my $i=0;$i<=$#standardoptions;$i++) {
		if ($standardoptions[$i]=~/\_$tempkey$/) { next; }
		$r->print("\n<option value='$standardoptions[$i]'".
			  ($standardoptions[$i] eq $action?' selected="selected"':'').
			  ">$standarddisplay[$i]</option>");
	    }
	}
	$r->print('</select>');
	unless (&isdateparm($defkeytype{$tempkey})) {
	    $r->print("\n<br />".&mt('Triggering value(s) of other parameter (optional, comma-separated):').
		      '<input type="text" size="20" name="'.$tempkey.'_triggervalue" value="'.&rulescache($tempkey.'_triggervalue').'" />');
	}
	$r->print("\n</td><td>\n");

        if (&isdateparm($defkeytype{$tempkey})) {
	    my $days=&rulescache($tempkey.'_days');
	    my $hours=&rulescache($tempkey.'_hours');
	    my $min=&rulescache($tempkey.'_min');
	    my $sec=&rulescache($tempkey.'_sec');
	    $r->print(<<ENDINPUTDATE);
<input name="$tempkey\_days" type="text" size="4" value="$days" />$lt{'days'}<br />
<input name="$tempkey\_hours" type="text" size="4" value="$hours" />$lt{'hours'}<br />
<input name="$tempkey\_min" type="text" size="4" value="$min" />$lt{'min'}<br />
<input name="$tempkey\_sec" type="text" size="4" value="$sec" />$lt{'sec'}
ENDINPUTDATE
	} elsif ($defkeytype{$tempkey} eq 'string_yesno') {
            my $yeschecked='';
            my $nochecked='';
            if (&rulescache($tempkey.'_value') eq 'yes') { $yeschecked='checked="checked"'; }
            if (&rulescache($tempkey.'_value') eq 'no') { $nochecked='checked="checked"'; }

	    $r->print(<<ENDYESNO);
<label><input type="radio" name="$tempkey\_value" value="yes" $yeschecked /> $lt{'yes'}</label><br />
<label><input type="radio" name="$tempkey\_value" value="no" $nochecked /> $lt{'no'}</label>
ENDYESNO
        } else {
	    $r->print('<input type="text" size="20" name="'.$tempkey.'_value" value="'.&rulescache($tempkey.'_value').'" />');
	}
        $r->print('</td></tr>');
    }
    $r->print("</table>\n<input type='submit' name='storerules' value='".
	      &mt('Store Rules')."' /></form>\n</body>\n</html>");
    return;
}

##################################################
##################################################

=pod

=item * handler

Main handler.  Calls &assessparms and &crsenv subroutines.

=cut
##################################################
##################################################
#    use Data::Dumper;

sub handler {
    my $r=shift;

    if ($r->header_only) {
	&Apache::loncommon::content_type($r,'text/html');
	$r->send_http_header;
	return OK;
    }
    &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
					    ['action','state',
                                             'pres_marker',
                                             'pres_value',
                                             'pres_type',
                                             'udom','uname','symb']);


    &Apache::lonhtmlcommon::clear_breadcrumbs();
    &Apache::lonhtmlcommon::add_breadcrumb({href=>"/adm/parmset",
					    text=>"Parameter Manager",
					    faq=>10,
					    bug=>'Instructor Interface'});

# ----------------------------------------------------- Needs to be in a course
    my $parm_permission =
	(&Apache::lonnet::allowed('opa',$env{'request.course.id'}) ||
	 &Apache::lonnet::allowed('opa',$env{'request.course.id'}.'/'.
				  $env{'request.course.sec'}));
    if ($env{'request.course.id'} &&  $parm_permission) {

        # Start Page
        &Apache::loncommon::content_type($r,'text/html');
        $r->send_http_header;


        # id numbers can change on re-ordering of folders

        &resetsymbcache();

        #
        # Main switch on form.action and form.state, as appropriate
        #
        # Check first if coming from someone else headed directly for
        #  the table mode
        if ((($env{'form.command'} eq 'set') && ($env{'form.url'})
	     && (!$env{'form.dis'})) || ($env{'form.symb'})) {
	    &assessparms($r);

        } elsif (! exists($env{'form.action'})) {
            $r->print(&header());
            $r->print(&Apache::lonhtmlcommon::breadcrumbs(undef,
							 'Parameter Manager'));
            &print_main_menu($r,$parm_permission);
        } elsif ($env{'form.action'} eq 'crsenv' && $parm_permission) {
            &Apache::lonhtmlcommon::add_breadcrumb({href=>'/adm/parmset?action=crsenv',
						    text=>"Course Environment"});
            &crsenv($r); 
        } elsif ($env{'form.action'} eq 'setoverview' && $parm_permission) {
            &Apache::lonhtmlcommon::add_breadcrumb({href=>'/adm/parmset?action=setoverview',
						    text=>"Overview Mode"});
	    &overview($r);
        } elsif ($env{'form.action'} eq 'newoverview' && $parm_permission) {
            &Apache::lonhtmlcommon::add_breadcrumb({href=>'/adm/parmset?action=setoverview',
						    text=>"Overview Mode"});
	    &newoverview($r);
        }  elsif ($env{'form.action'} eq 'setdefaults' && $parm_permission) {
            &Apache::lonhtmlcommon::add_breadcrumb({href=>'/adm/parmset?action=setdefaults',
						    text=>"Set Defaults"});
	    &defaultsetter($r);
	} elsif ($env{'form.action'} eq 'settable' && $parm_permission) {
            &Apache::lonhtmlcommon::add_breadcrumb({href=>'/adm/parmset?action=settable',
						    text=>"Table Mode",
						    help => 'Course_Setting_Parameters'});
	    &assessparms($r);
        }
        
    } else {
# ----------------------------- Not in a course, or not allowed to modify parms
	$env{'user.error.msg'}=
	    "/adm/parmset:opa:0:0:Cannot modify assessment parameters";
	return HTTP_NOT_ACCEPTABLE;
    }
    return OK;
}

1;
__END__

=pod

=back

=cut




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