Annotation of loncom/interface/lonpickcourse.pm, revision 1.20
1.1 www 1: # The LearningOnline Network
2: # Pick a course
3: #
1.20 ! raeburn 4: # $Id: lonpickcourse.pm,v 1.19 2004/11/23 18:03:04 raeburn Exp $
1.1 www 5: #
6: # Copyright Michigan State University Board of Trustees
7: #
8: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
9: #
10: # LON-CAPA is free software; you can redistribute it and/or modify
11: # it under the terms of the GNU General Public License as published by
12: # the Free Software Foundation; either version 2 of the License, or
13: # (at your option) any later version.
14: #
15: # LON-CAPA is distributed in the hope that it will be useful,
16: # but WITHOUT ANY WARRANTY; without even the implied warranty of
17: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18: # GNU General Public License for more details.
19: #
20: # You should have received a copy of the GNU General Public License
21: # along with LON-CAPA; if not, write to the Free Software
22: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23: #
24: # /home/httpd/html/adm/gpl.txt
25: #
26: # http://www.lon-capa.org/
27: #
28:
29: package Apache::lonpickcourse;
30:
31: use strict;
32: use Apache::Constants qw(:common);
33: use Apache::loncommon;
34: use Apache::loncoursedata;
35: use Apache::lonnet;
1.8 www 36: use Apache::lonlocal;
1.1 www 37:
38: sub handler {
39: my $r = shift;
1.8 www 40: &Apache::loncommon::content_type($r,'text/html');
1.1 www 41: $r->send_http_header;
42: return OK if $r->header_only;
43:
44: # ------------------------------------------------------------ Print the screen
45: $r->print(<<ENDDOCUMENT);
46: <html>
47: <head>
48: <title>The LearningOnline Network with CAPA</title>
49: </head>
50: ENDDOCUMENT
1.5 www 51: # Get parameters from query string
1.1 www 52: &Apache::loncommon::get_unprocessed_cgi
53: ($ENV{'QUERY_STRING'},['domainfilter','descriptfilter',
1.13 albertel 54: 'sincefilter','form','cnumelement',
1.19 raeburn 55: 'cdomelement','cnameelement','roleelement',
1.20 ! raeburn 56: 'pickedcourse','instcodefilter','ownerfilter']);
1.5 www 57: # domain filter and selection
1.1 www 58: my $domainfilter=$ENV{'form.domainfilter'};
59: $domainfilter=~s/\W//g;
1.4 www 60: unless ($domainfilter) { $domainfilter=''; }
61: my $domainselectform=&Apache::loncommon::select_dom_form($domainfilter,
62: 'domainfilter',1);
1.5 www 63: # description filter
1.1 www 64: my $descriptfilter=$ENV{'form.descriptfilter'};
1.4 www 65: unless ($descriptfilter) { $descriptfilter=''; }
1.16 albertel 66: my $listdescript=&HTML::Entities::encode($descriptfilter,'<>&"');
1.20 ! raeburn 67: # institutional code filter
! 68: my $instcodefilter=$ENV{'form.instcodefilter'};
! 69: unless ($instcodefilter) { $instcodefilter=''; }
! 70: my $listinstcode=&HTML::Entities::encode($instcodefilter,'<>&"');
! 71: # course owner filter
! 72: my $ownerfilter=$ENV{'form.ownerfilter'};
! 73: unless ($ownerfilter) { $ownerfilter=''; }
! 74: my $listowner=&HTML::Entities::encode($ownerfilter,'<>&"');
1.5 www 75: # last course activity filter and selection
1.1 www 76: my $sincefilter=$ENV{'form.sincefilter'};
1.5 www 77: $sincefilter=~s/[^\d-]//g;
78: unless ($sincefilter) { $sincefilter=-1; }
79: my $sincefilterform=&Apache::loncommon::select_form($sincefilter,
80: 'sincefilter',('-1'=>'',
81: '86400' => 'today',
82: '604800' => 'last week',
83: '2592000' => 'last month',
84: '7776000' => 'last three months',
85: '15552000' => 'last six months',
1.9 albertel 86: '31104000' => 'last year',
87: 'select_form_order' =>
88: ['-1','86400','604800','2592000','7776000',
89: '15552000','31104000']));
1.19 raeburn 90: # if called from loncreateuser, report sections, then close
91: my ($loaditem,$seclist);
92: my $num_sections = 0;
93: my @sections = ();
94: if ($ENV{'form.form'} eq 'cu' && $ENV{'form.pickedcourse'}) {
95: $loaditem = 'onLoad="setSections()"';
96: my ($cdom,$cnum) = split/_/,$ENV{'form.pickedcourse'};
97: my %sections_count = ();
98: $num_sections = &Apache::loncommon::get_sections($cdom,$cnum,\%sections_count);
99: my @sections = ();
100: if ($num_sections > 0) {
101: @sections = (sort {$a <=> $b} keys %sections_count);
102: $seclist = join('","',@sections);
103: }
104: }
105: $r->print(&Apache::loncommon::bodytag("Selecting a Course",undef,$loaditem));
1.8 www 106: my %lt=&Apache::lonlocal::texthash(
107: 'cac' => 'Course Activity',
108: 'cde' => 'Course Description',
1.20 ! raeburn 109: 'cdo' => 'Course Domain',
! 110: 'cin' => 'Course Institutional Code',
! 111: 'cow' => "Course Owner's usename");
1.13 albertel 112: my ($name_code,$name_input);
113: if (defined($ENV{'form.cnameelement'}) && $ENV{'form.cnameelement'} ne '') {
114: $name_code = "opener.document.$ENV{'form.form'}.$ENV{'form.cnameelement'}.value=cdesc;";
115: $name_input ='<input type="hidden" name="cnameelement" value="'.
116: $ENV{'form.cnameelement'}.'" />';
117: }
1.18 raeburn 118: my $submitopener = '';
119: my $autosubmit = '';
120: my $roleelement = '';
1.19 raeburn 121: my $lastaction = 'self.close()';
122: if ($ENV{'form.form'} eq 'cu') {
123: $lastaction = 'document.courselist.pickedcourse.value = cdom+"_"+cname;'."\n".
124: 'document.courselist.submit();';
125: }
1.18 raeburn 126: my $roledom = $ENV{'form.roleelement'};
127: if ($roledom) {
128: $roleelement = '<input type="hidden" name="roleelement" value="'.$roledom.'" />';
129: $submitopener = &Apache::lonroles::processpick($roledom);
130: $autosubmit = 'process_pick("'.$roledom.'")';
131: }
1.1 www 132: $r->print(<<ENDSCRIPT);
133: <script>
1.13 albertel 134: function gochoose(cname,cdom,cdesc) {
135: $name_code
1.19 raeburn 136: var openerForm = "$ENV{'form.form'}";
137: opener.document.$ENV{'form.form'}.$ENV{'form.cnumelement'}.value=cname;
138: if (openerForm == 'cu' || openerForm == 'rolechoice') {
139: opener.document.$ENV{'form.form'}.$ENV{'form.cdomelement'}.value=cdom;
140: }
141: else {
142: var slct=opener.document.$ENV{'form.form'}.$ENV{'form.cdomelement'};
143: var i;
144: for (i=0;i<slct.length;i++) {
145: if (slct.options[i].value==cdom) { slct.selectedIndex=i; }
146: }
1.1 www 147: }
1.18 raeburn 148: $autosubmit
1.19 raeburn 149: $lastaction
150: }
151:
152: function setSections() {
153: var numSections = $num_sections
154: var sectionsArray = new Array("$seclist")
155: opener.document.$ENV{"form.form"}.currsec.length = 0
156: if (numSections == 0) {
157: opener.document.$ENV{"form.form"}.currsec.options[0] = new Option('No existing sections','-1',false,false)
158: }
159: else {
160: for (var i=0; i<numSections; i++) {
161: opener.document.$ENV{"form.form"}.currsec.options[i] = new Option(sectionsArray[i],sectionsArray[i],false,false)
162: }
163: opener.document.$ENV{"form.form"}.currsec.multiple=true
164: if (numSections < 3) {
165: opener.document.$ENV{"form.form"}.currsec.size=numSections;
166: }
167: else {
168: opener.document.$ENV{"form.form"}.currsec.size=3;
169: }
170: opener.document.$ENV{"form.form"}.currsec.options[0].selected = false
171: }
172: self.close()
1.1 www 173: }
174: </script>
1.18 raeburn 175: $submitopener
1.4 www 176: <form method="post">
1.5 www 177: <input type="hidden" name="cnumelement" value="$ENV{'form.cnumelement'}" />
178: <input type="hidden" name="cdomelement" value="$ENV{'form.cdomelement'}" />
1.13 albertel 179: $name_input
1.5 www 180: <input type="hidden" name="form" value="$ENV{'form.form'}" />
1.18 raeburn 181: $roleelement
1.8 www 182: $lt{'cac'}: $sincefilterform
1.4 www 183: <br />
1.8 www 184: $lt{'cdo'}: $domainselectform
1.4 www 185: <br />
1.20 ! raeburn 186: $lt{'cin'}:
! 187: <input type="text" name="instcodefilter" size="10" value="$listinstcode" />
! 188: <br />
! 189: $lt{'cow'}:
! 190: <input type="text" name="ownerfilter" size="10" value="$listowner" />
! 191: <br />
1.8 www 192: $lt{'cde'}:
1.15 www 193: <input type="text" name="descriptfilter" size="40" value="$listdescript" />
1.5 www 194: <p><input type="submit" name="gosearch" value="Search" /></p>
1.4 www 195: </form>
1.5 www 196: <hr />
1.1 www 197: ENDSCRIPT
1.2 www 198: # ---------------------------------------------------------------- Get the data
1.5 www 199: if ($ENV{'form.gosearch'}) {
1.8 www 200: $r->print(&mt('Searching').' ...<br /> <br />');
1.6 www 201: $r->rflush();
1.5 www 202: unless ($descriptfilter) { $descriptfilter='.'; }
1.20 ! raeburn 203: unless ($instcodefilter) { $instcodefilter='.'; }
! 204: unless ($ownerfilter) { $ownerfilter='.'; }
1.5 www 205: my $timefilter=($sincefilter==-1?1:time-$sincefilter);
206: my %courses=
207: &Apache::lonnet::courseiddump
1.20 ! raeburn 208: ($domainfilter,$descriptfilter,$timefilter,$instcodefilter,$ownerfilter);
1.19 raeburn 209: $r->print('<form name="courselist">');
1.10 albertel 210: my %by_descrip;
211: foreach my $course (keys %courses) {
1.17 raeburn 212: my $descr;
213: if ($courses{$course} =~ m/^([^:]*):/) {
214: $descr = &Apache::lonnet::unescape($1);
215: } else {
216: $descr = &Apache::lonnet::unescape($courses{$course});
217: }
218: $by_descrip{lc($descr)}=$course;
1.10 albertel 219: }
220: foreach my $description (sort(keys(%by_descrip))) {
221: my $course=$by_descrip{$description};
1.17 raeburn 222: my $cleandesc=&HTML::Entities::encode($description,'<>&"');
1.13 albertel 223: $cleandesc=~s/'/\\'/g;
1.10 albertel 224: my ($cdom,$cnum)=split(/\_/,$course);
1.5 www 225: $r->print('<input type="button" value="Select" onClick="gochoose('.
1.17 raeburn 226: "'".$cnum."','".$cdom."','".$cleandesc."')".'" /> '.$description.' ('.
1.3 www 227: ($Apache::lonnet::domaindescription{$cdom}?
1.5 www 228: $Apache::lonnet::domaindescription{$cdom}:$cdom).
229: ")<br />\n");
230: }
1.12 albertel 231: if (!%courses) { $r->print(&mt('None found')); }
1.19 raeburn 232: $r->print('<input type="hidden" name="form" value="'.$ENV{'form.form'}.'" />'."\n".
233: '<input type="hidden" name="pickedcourse" value="" />'."\n".
234: '<input type="hidden" name="cnumelement" value="'.$ENV{'form.cnumelement'}.'" />'."\n".
235: '<input type="hidden" name="cdomelement" value="'.$ENV{'form.cdomelement'}.'" />'."\n".
236: '</form>');
1.2 www 237: }
1.5 www 238: $r->print('</body></html>');
1.1 www 239: return OK;
1.18 raeburn 240: }
1.1 www 241:
242: 1;
243: __END__
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