# The LearningOnline Network # Pick a course # # $Id: lonpickcourse.pm,v 1.54 2006/11/05 20:59:17 raeburn 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/ # package Apache::lonpickcourse; use strict; use Apache::Constants qw(:common); use Apache::loncommon; use Apache::loncoursedata; use Apache::lonnet; use Apache::lonlocal; use Apache::longroup; use lib '/home/httpd/lib/perl/'; use LONCAPA; sub handler { my $r = shift; &Apache::loncommon::content_type($r,'text/html'); $r->send_http_header; return OK if $r->header_only; # ------------------------------------------------------------ Print the screen # Get parameters from query string &Apache::loncommon::get_unprocessed_cgi ($ENV{'QUERY_STRING'},['domainfilter','descriptfilter', 'sincefilter','form','cnumelement', 'cdomelement','cnameelement','roleelement', 'pickedcourse','instcodefilter', 'ownerfilter','coursefilter','multiple', 'type','ownerdomfilter']); my ($type,$title,$jscript,$multelement,$multiple,$name_code,$name_input, $roleelement); $type = $env{'form.type'}; if (!defined($env{'form.type'})) { $type = 'Course'; } $title = &mt('Selecting a [_1]',$type); # Setup for multiple course selections, if flag for multiples set. ($title,$jscript,$multelement,$multiple) = &multiples_tag($type,$title); if (defined($env{'form.cnameelement'}) && $env{'form.cnameelement'} ne '') { $name_code = "opener.document.$env{'form.form'}.$env{'form.cnameelement'}.". "value=cdesc;"; $name_input =''; } my $submitopener = ''; my $autosubmit = ''; my $lastaction = 'self.close()'; if ($env{'form.form'} eq 'cu') { $lastaction = 'document.courselist.pickedcourse.value = cdom+"_"+cname;'."\n". 'document.courselist.submit();'; } if ($env{'form.form'} eq 'portform') { $lastaction = 'document.courselist.pickedcourse.value = cdom+"_"+cname;'."\n". 'document.courselist.submit();'; } my $roledom = $env{'form.roleelement'}; if ($roledom) { $roleelement = ''; $submitopener = &Apache::lonroles::processpick(); $autosubmit = 'process_pick("'.$roledom.'")'; } my (%filter,%list); my $filterdisplay; my $onlyown = 0; if ((($env{'form.form'} eq 'portform') && ($env{'user.adv'}))) { $onlyown = 1; } else { $filterdisplay = &build_filters($type,$name_input,$roleelement, $multelement, \%filter,\%list); } # if called from loncreateuser, report sections, then close my (%loaditem,$seclist,$groupslist,$roleslist,$rolesnameslist, $accesslist,$accessnameslist); my $sec_element = 'currsec'; my $grplist_element = 'groups'; my $num_sections = 0; my $num_groups = 0; my $num_roles = 0; my $num_access = 0; my ($cdom,$cnum); if ($env{'form.pickedcourse'}) { ($cdom,$cnum) = split/_/,$env{'form.pickedcourse'}; } if ($env{'form.form'} eq 'cu' && $env{'form.pickedcourse'}) { $loaditem{'onload'} ="setSections()"; ($seclist,$num_sections,$groupslist,$num_groups) = &build_selection_lists($cdom,$cnum,$type,undef,undef, $env{'form.form'}); } # if called from portfolio, report roles, sections, groups and close my ($roles_element,$groups_element,$status_element,$setitems_function); if ($env{'form.form'} eq 'portform' && $env{'form.pickedcourse'}) { $loaditem{'onload'} ="setItems()"; ($seclist,$num_sections,$groupslist,$num_groups,$roleslist,$num_roles, $rolesnameslist,$accesslist,$num_access,$accessnameslist) = &build_selection_lists($cdom,$cnum,$type,1,1,$env{'form.form'}); ($sec_element,$grplist_element,$setitems_function) = &setitems_javascript($seclist,$num_sections,$groupslist,$num_groups, $roleslist,$num_roles,$rolesnameslist, $accesslist,$num_access,$accessnameslist); } $r->print(&Apache::loncommon::start_page($title,undef, {'add_entries' => \%loaditem, 'no_nav_bar' => 1, })); my %elements = ( 'Course' => { name => 'coursepick', total => 'coursetotal', list => 'courselist', }, 'Non-standard course' => { name => 'grouppick', total => 'grouptotal', list => 'grouplist', }, ); my $setsec_func = &setsec_javascript($seclist,$sec_element,$grplist_element, $groupslist,$num_sections); $r->print(< function gochoose(cname,cdom,cdesc,multiple,caller) { var openerForm = "$env{'form.form'}"; courseCount = 0; var courses = ''; if (multiple) { if (typeof(document.courselist.course_id.length) == 'undefined') { // only 1 course checkbox was created if (document.courselist.course_id.checked) { courses = courses + document.courselist.course_id.value + "&&"; courseCount ++; } } else { for (var j=0; j 0) { courses = courses.substr(0,courses.length-2); opener.document.$env{'form.form'}.$elements{$type}{'list'}.value = courses; } } else { $name_code opener.document.$env{'form.form'}.$env{'form.cnumelement'}.value=cname; var slct=opener.document.$env{'form.form'}.$env{'form.cdomelement'}; if (slct.options == undefined) { opener.document.$env{'form.form'}.$env{'form.cdomelement'}.value=cdom; } else { var i; for (i=0;i $submitopener ENDSCRIPT $r->print($filterdisplay); # ---------------------------------------------------------------- Get the data if ($env{'form.gosearch'} || $onlyown) { my %courses = &search_courses($r,$type,$onlyown,\%filter); &display_matched_courses($r,$type,$multiple,%courses); } $r->print(&Apache::loncommon::end_page()); return OK; } sub display_matched_courses { my ($r,$type,$multiple,%courses) = @_; $r->print('
'); my %by_descrip; my $numcourses = keys(%courses); foreach my $course (keys(%courses)) { my $descr; if ($courses{$course} =~ m/^([^:]*):/i) { $descr = &unescape($1); } else { $descr = &unescape($courses{$course}); } my $description = $descr; push (@{$by_descrip{$description}}, $course); } if ($numcourses > 1 && $multiple) { $r->print('   

'); } foreach my $description (sort { lc($a) cmp lc($b) } (keys(%by_descrip))) { foreach my $course (@{$by_descrip{$description}}) { my $cleandesc=&HTML::Entities::encode($description,'<>&"'); $cleandesc=~s/'/\\'/g; my ($cdom,$cnum)=split(/\_/,$course); my ($descr,$instcode,$owner,$ttype) = split/:/,$courses{$course}; $r->print(&course_chooser($multiple,$cdom,$cnum,$cleandesc)); $r->print($description.'('. ($Apache::lonnet::domaindescription{$cdom}? $Apache::lonnet::domaindescription{$cdom}:$cdom).")"); unless ($instcode eq '') { $r->print(" - ".&unescape($instcode)); } unless ($owner eq '') { $r->print(", owner - ".&unescape($owner)); } unless ($ttype eq '') { $r->print('('.&Apache::lonnet::unescape($ttype).')'); } if ($multiple) { $r->print("\n"); } $r->print("
\n"); } } if (!%courses) { $r->print(&mt('None found')); } elsif ($multiple) { $r->print(''); } $r->print(''. "\n".''."\n". ''."\n". ''."\n". ''."\n"); if ((exists($env{'form.roleelement'})) && ($env{'form.form'} eq 'rolechoice')) { $r->print(''."\n"); } $r->print("
\n"); return; } sub multiples_tag { my ($type,$title) = @_; my ($jscript,$multelement,$multiple); $multiple = $env{'form.multiple'}; if ($multiple) { $title = &mt('Selecting [_1](s)',lc($type)); $jscript = &Apache::loncommon::check_uncheck_jscript(); $multelement = ''; } return ($title,$jscript,$multelement,$multiple); } sub build_filters { my ($type,$name_input,$roleelement,$multelement,$filter,$list) = @_; my @filters = ('domainfilter','descriptfilter','instcodefilter','ownerfilter','ownerdomfilter'); # course ID filter for DCs only my ($courseidtag,$domainselectform,$sincefilterform,$ownerdomselectform, $instcodeform,$typeselectform); if ($env{'user.adv'} && $env{'form.domainfilter'} && exists($env{'user.role.dc./'.$env{'form.domainfilter'}})) { push(@filters,'coursefilter'); $courseidtag=&mt('LON-CAPA course ID'). '
'; } foreach my $item (@filters) { $filter->{$item} = $env{'form.'.$item}; if ($item ne 'descriptfilter' && $item ne 'instcodefilter') { $filter->{$item} =~ s/\W//g; if (!$filter->{$item}) { $filter->{$item} = ''; } } if ($item eq 'domainfilter') { $domainselectform = &Apache::loncommon::select_dom_form($filter->{$item},'domainfilter',1); } elsif ($item eq 'ownerdomfilter') { $ownerdomselectform = &Apache::loncommon::select_dom_form($filter->{$item},'ownerdomfilter',1); } else { $list->{$item} = &HTML::Entities::encode($filter->{$item},'<>&"'); } } # last course activity filter and selection $filter->{'sincefilter'} = $env{'form.sincefilter'}; $filter->{'sincefilter'} =~ s/[^\d-]//g; if (!$filter->{'sincefilter'}) { $filter->{'sincefilter'}=-1; } $sincefilterform=&Apache::loncommon::select_form($filter->{'sincefilter'}, 'sincefilter',('-1'=>'', '86400' => 'today', '604800' => 'last week', '2592000' => 'last month', '7776000' => 'last three months', '15552000' => 'last six months', '31104000' => 'last year', 'select_form_order' => ['-1','86400','604800','2592000','7776000', '15552000','31104000'])); my %lt = ( 'cac' => &mt('[_1] Activity',$type), 'cde' => &mt('[_1] Description',$type), 'cdo' => &mt('[_1] Domain',$type), 'cin' => &mt('Course Institutional Code'), 'cow' => &mt("[_1] Owner's Username",$type), 'cod' => &mt("[_1] Owner's Domain", $type), 'cog' => &mt('Course Type') ); $typeselectform = '"; my $output = <<"END";
$name_input $roleelement $multelement $lt{'cac'}: $sincefilterform
$lt{'cdo'}: $domainselectform
$lt{'cog'}: $typeselectform
$instcodeform $lt{'cow'}:
$lt{'cod'}: $ownerdomselectform
$courseidtag $lt{'cde'}:


END return $output; } sub search_courses { my ($r,$type,$onlyown,$filter) = @_; my %courses; if (!$onlyown) { $r->print(&mt('Searching').' ...
 
'); $r->rflush(); if (($filter->{'ownerfilter'} ne '') || ($filter->{'ownerdomfilter'} ne '')) { $filter->{'combownerfilter'} = $filter->{'ownerfilter'}.':'. $filter->{'ownerdomfilter'}; } foreach my $item ('descriptfilter','instcodefilter','coursefilter', 'combownerfilter') { if (!$filter->{$item}) { $filter->{$item}='.'; } } if ($type eq '') { $type = '.'; } my $timefilter = ($filter->{'sincefilter'}==-1?1:time-$filter->{'sincefilter'}); %courses = &Apache::lonnet::courseiddump($filter->{'domainfilter'}, $filter->{'descriptfilter'}, $timefilter, $filter->{'instcodefilter'}, $filter->{'combownerfilter'}, $filter->{'coursefilter'}, undef,undef,$type); } else { $r->print('
'); foreach my $cid (sort(&Apache::loncommon::findallcourses())) { $courses{$cid} = $env{'course.'.$cid.'.description'}; } } return %courses; } sub course_chooser { my ($multiple,$cdom,$cnum,$cleandesc) = @_; my $output; if ($multiple) { $output = '