1: # The LearningOnline Network with CAPA
2: # Handler to drop and add students in courses
3: #
4: # $Id: londropadd.pm,v 1.90 2003/11/07 21:04:37 matthew Exp $
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: # (Handler to set parameters for assessments
29: #
30: # (Handler to resolve ambiguous file locations
31: #
32: # (TeX Content Handler
33: #
34: ###############################################################
35: ##############################################################
36:
37: package Apache::londropadd;
38:
39: use strict;
40: use Apache::lonnet();
41: use Apache::loncommon();
42: use Apache::lonhtmlcommon();
43: use Apache::Constants qw(:common :http REDIRECT);
44: use Spreadsheet::WriteExcel;
45: use Apache::lonlocal;
46:
47: ###############################################################
48: ###############################################################
49: sub header {
50: my $bodytag=&Apache::loncommon::bodytag('Enrollment Manager');
51: my $title = &mt('LON-CAPA Enrollment Manager');
52: return(<<ENDHEAD);
53: <html>
54: <head>
55: <title>$title</title>
56: </head>
57: $bodytag
58: <form method="post" enctype="multipart/form-data"
59: action="/adm/dropadd" name="studentform">
60: ENDHEAD
61: }
62:
63: ###############################################################
64: ###############################################################
65: # Drop student from all sections of a course, except optional $csec
66: sub modifystudent {
67: my ($udom,$unam,$courseid,$csec,$desiredhost)=@_;
68: # if $csec is undefined, drop the student from all the courses matching
69: # this one. If $csec is defined, drop them from all other sections of
70: # this course and add them to section $csec
71: $courseid=~s/\_/\//g;
72: $courseid=~s/^(\w)/\/$1/;
73: my %roles = &Apache::lonnet::dump('roles',$udom,$unam);
74: my ($tmp) = keys(%roles);
75: # Bail out if we were unable to get the students roles
76: return "$1" if ($tmp =~ /^(con_lost|error|no_such_host)/i);
77: # Go through the roles looking for enrollment in this course
78: my $result = '';
79: foreach my $course (keys(%roles)) {
80: if ($course=~/^$courseid(?:\/)*(?:\s+)*(\w+)*\_st$/) {
81: # We are in this course
82: my $section=$1;
83: $section='' if ($course eq $courseid.'_st');
84: if (defined($csec) && $section eq $csec) {
85: $result .= 'ok:';
86: } elsif ( ((!$section) && (!$csec)) || ($section ne $csec) ) {
87: my (undef,$end,$start)=split(/\_/,$roles{$course});
88: my $now=time;
89: # if this is an active role
90: if (!($start && ($now<$start)) || !($end && ($now>$end))) {
91: my $reply=&Apache::lonnet::modifystudent
92: # dom name id mode pass f m l g
93: ($udom,$unam,'', '', '',undef,undef,undef,undef,
94: $section,time,undef,undef,$desiredhost);
95: $result .= $reply.':';
96: }
97: }
98: }
99: }
100: if ($result eq '') {
101: $result = 'Unable to find section for this student';
102: } else {
103: $result =~ s/(ok:)+/ok/g;
104: }
105: return $result;
106: }
107:
108: ###############################################################
109: ###############################################################
110: # build a domain and server selection form
111: sub domain_form {
112: my ($defdom) = @_;
113: # Set up domain and server selection forms
114: #
115: # Get the domains
116: my @domains = &Apache::loncommon::get_domains();
117: # build up the menu information to be passed to
118: # &Apache::loncommon::linked_select_forms
119: my %select_menus;
120: foreach my $dom (@domains) {
121: # set up the text for this domain
122: $select_menus{$dom}->{'text'}= $dom;
123: # we want a choice of 'default' as the default in the second menu
124: $select_menus{$dom}->{'default'}= 'default';
125: $select_menus{$dom}->{'select2'}->{'default'} = 'default';
126: # Now build up the other items in the second menu
127: my %servers = &Apache::loncommon::get_library_servers($dom);
128: foreach my $server (keys(%servers)) {
129: $select_menus{$dom}->{'select2'}->{$server}
130: = "$server $servers{$server}";
131: }
132: }
133: my $result = &Apache::loncommon::linked_select_forms
134: ('studentform',' with home server ',$defdom,
135: 'lcdomain','lcserver',\%select_menus);
136: return $result;
137: }
138:
139: ###############################################################
140: ###############################################################
141: # Menu Phase One
142: sub print_main_menu {
143: my $r=shift;
144: my %Text = &Apache::lonlocal::texthash
145: ('upload' => 'Upload a class list',
146: 'enrollone' => 'Enroll a single student',
147: 'modify' => 'Modify student data',
148: 'view' => 'View Class List',
149: 'drop' => 'Drop Students');
150:
151: $r->print(<<END);
152: <p>
153: <font size="+1">
154: <a href="/adm/dropadd?action=upload">$Text{'upload'}</a>
155: </font>
156: </p><p>
157: <font size="+1">
158: <a href="/adm/dropadd?action=enrollstudent">$Text{'enrollone'}</a>
159: </font>
160: </p><p>
161: <font size="+1">
162: <a href="/adm/dropadd?action=modifystudent">$Text{'modify'}</a>
163: </font>
164: </p><p>
165: <font size="+1">
166: <a href="/adm/dropadd?action=classlist">$Text{'view'}</a>
167: </font>
168: </p><p>
169: <font size="+1">
170: <a href="/adm/dropadd?action=drop">$Text{'drop'}</a>
171: </font>
172: </p>
173: END
174: }
175:
176: ###############################################################
177: ###############################################################
178: sub hidden_input {
179: my ($name,$value) = @_;
180: return '<input type="hidden" name="'.$name.'" value="'.$value.'" />'."\n";
181: }
182:
183: sub print_upload_manager_header {
184: my ($r,$datatoken,$distotal,$krbdefdom)=@_;
185: my $javascript;
186: if (! exists($ENV{'form.upfile_associate'})) {
187: $ENV{'form.upfile_associate'} = 'forward';
188: }
189: if ($ENV{'form.associate'} eq 'Reverse Association') {
190: if ( $ENV{'form.upfile_associate'} ne 'reverse' ) {
191: $ENV{'form.upfile_associate'} = 'reverse';
192: } else {
193: $ENV{'form.upfile_associate'} = 'forward';
194: }
195: }
196: if ($ENV{'form.upfile_associate'} eq 'reverse') {
197: $javascript=&upload_manager_javascript_reverse_associate();
198: } else {
199: $javascript=&upload_manager_javascript_forward_associate();
200: }
201: my $javascript_validations=&javascript_validations('auth',$krbdefdom);
202: my $checked=(($ENV{'form.noFirstLine'})?' checked="1"':'');
203: $r->print('<h3>'.&mt('Uploading Class List')."</h3>\n".
204: "<hr>\n".
205: '<h3>'.&mt('Identify fields')."</h3>\n");
206: $r->print("<p>\n".
207: &mt('Total number of records found in file: [_1].',$distotal).
208: "\n".
209: "</p><hr>\n");
210: $r->print(&mt('Enter as many fields as you can. '.
211: 'The system will inform you and bring you back to '.
212: 'this page if the data selected is insufficient to '.
213: 'enroll students in your class.')."<hr>\n");
214: $r->print(&hidden_input('action','upload').
215: &hidden_input('state','got_file').
216: &hidden_input('associate','').
217: &hidden_input('datatoken',$datatoken).
218: &hidden_input('fileupload',$ENV{'form.fileupload'}).
219: &hidden_input('upfiletype',$ENV{'form.upfiletype'}).
220: &hidden_input('upfile_associate',$ENV{'form.upfile_associate'}));
221: $r->print('<input type="button" value="Reverse Association" '.
222: 'name="'.&mt('Reverse Association').'" '.
223: 'onClick="javascript:this.form.associate.value=\'Reverse Association\';submit(this.form);" />');
224: $r->print('<input type="checkbox" name="noFirstLine" $checked />'.
225: &mt('Ignore First Line'));
226: $r->print("<hr />\n".
227: '<script type="text/javascript" language="Javascript">'."\n".
228: $javascript."\n".$javascript_validations.'</script>');
229: }
230:
231: ###############################################################
232: ###############################################################
233: sub javascript_validations {
234: my ($mode,$krbdefdom)=@_;
235: my $authheader;
236: if ($mode eq 'auth') {
237: my %param = ( formname => 'studentform',
238: kerb_def_dom => $krbdefdom );
239: $authheader = &Apache::loncommon::authform_header(%param);
240: }
241: my %alert = &Apache::lonlocal::texthash
242: (username => 'You need to specify the username field.',
243: authen => 'You must choose an authentication type.',
244: krb => 'You need to specify the Kerberos domain.',
245: ipass => 'You need to specify the initial password.',
246: name => 'The optional name field was not specified.',
247: snum => 'The optional student number field was not specified.',
248: section => 'The optional section or group field was not specified.',
249: email => 'The optional email address field was not specified.',
250: continue => 'Continue enrollment?',
251: );
252:
253: # my $pjump_def = &Apache::lonhtmlcommon::pjump_javascript_definition();
254: my $function_name =(<<END);
255: function verify_message (vf,founduname,foundpwd,foundname,foundid,foundsec,foundemail) {
256: END
257: my $auth_checks = (<<END);
258: var foundatype=0;
259: if (founduname==0) {
260: alert('$alert{'username'}');
261: return;
262: }
263: // alert('current.radiovalue = '+current.radiovalue);
264: if (current.radiovalue == null || current.radiovalue == 'nochange') {
265: // They did not check any of the login radiobuttons.
266: alert('$alert{'authen'}');
267: return;
268: }
269: foundatype=1;
270: if (current.argfield == null || current.argfield == '') {
271: var alertmsg = '';
272: switch (current.value) {
273: case 'krb':
274: alertmsg = '$alert{'krb'}';
275: break;
276: case 'loc':
277: case 'fsys':
278: alertmsg = '$alert{'ipass'}';
279: break;
280: case 'fsys':
281: alertmsg = '';
282: break;
283: default:
284: alertmsg = '';
285: }
286: if (alertmsg != '') {
287: alert(alertmsg);
288: return;
289: }
290: }
291: END
292: my $optional_checks = (<<END);
293: var message='';
294: if (foundname==0) {
295: message='$alert{'name'}';
296: }
297: if (foundid==0) {
298: if (message!='') {
299: message+='\\n';
300: }
301: message+='$alert{'snum'}';
302: }
303: if (foundsec==0) {
304: if (message!='') {
305: message+='\\n';
306: }
307: message+='$alert{'section'}';
308: }
309: if (foundemail==0) {
310: if (message!='') {
311: message+='\\n';
312: }
313: message+='$alert{'email'}';
314: }
315: if (message!='') {
316: message+= '\\n$alert{'continue'}';
317: if (confirm(message)) {
318: vf.state.value='enrolling';
319: vf.submit();
320: }
321: } else {
322: vf.state.value='enrolling';
323: vf.submit();
324: }
325: }
326:
327: END
328: my $result = $function_name;
329: if ($mode eq 'auth') {
330: $result .= $auth_checks;
331: }
332: $result .= $optional_checks;
333: if ($mode eq 'auth') {
334: $result .= $authheader;
335: }
336: return $result;
337: }
338:
339: ###############################################################
340: ###############################################################
341: sub upload_manager_javascript_forward_associate {
342: return(<<ENDPICK);
343: function verify(vf) {
344: var founduname=0;
345: var foundpwd=0;
346: var foundname=0;
347: var foundid=0;
348: var foundsec=0;
349: var foundemail=0;
350: var tw;
351: for (i=0;i<=vf.nfields.value;i++) {
352: tw=eval('vf.f'+i+'.selectedIndex');
353: if (tw==1) { founduname=1; }
354: if ((tw>=2) && (tw<=6)) { foundname=1; }
355: if (tw==7) { foundid=1; }
356: if (tw==8) { foundsec=1; }
357: if (tw==9) { foundpwd=1; }
358: if (tw==10) { foundemail=1; }
359: }
360: verify_message(vf,founduname,foundpwd,foundname,foundid,foundsec,foundemail);
361: }
362:
363: //
364: // vf = this.form
365: // tf = column number
366: //
367: // values of nw
368: //
369: // 0 = none
370: // 1 = username
371: // 2 = names (lastname, firstnames)
372: // 3 = fname (firstname)
373: // 4 = mname (middlename)
374: // 5 = lname (lastname)
375: // 6 = gen (generation)
376: // 7 = id
377: // 8 = section
378: // 9 = ipwd (password)
379: // 10 = email address
380:
381: function flip(vf,tf) {
382: var nw=eval('vf.f'+tf+'.selectedIndex');
383: var i;
384: // make sure no other columns are labeled the same as this one
385: for (i=0;i<=vf.nfields.value;i++) {
386: if ((i!=tf) && (eval('vf.f'+i+'.selectedIndex')==nw)) {
387: eval('vf.f'+i+'.selectedIndex=0;')
388: }
389: }
390: // If we set this to 'lastname, firstnames', clear out all the ones
391: // set to 'fname','mname','lname','gen' (3,4,5,6) currently.
392: if (nw==2) {
393: for (i=0;i<=vf.nfields.value;i++) {
394: if ((eval('vf.f'+i+'.selectedIndex')>=3) &&
395: (eval('vf.f'+i+'.selectedIndex')<=6)) {
396: eval('vf.f'+i+'.selectedIndex=0;')
397: }
398: }
399: }
400: // If we set this to one of 'fname','mname','lname','gen' (3,4,5,6),
401: // clear out any that are set to 'lastname, firstnames' (2)
402: if ((nw>=3) && (nw<=6)) {
403: for (i=0;i<=vf.nfields.value;i++) {
404: if (eval('vf.f'+i+'.selectedIndex')==2) {
405: eval('vf.f'+i+'.selectedIndex=0;')
406: }
407: }
408: }
409: // If we set the password, make the password form below correspond to
410: // the new value.
411: if (nw==9) {
412: changed_radio('int',document.studentform);
413: set_auth_radio_buttons('int',document.studentform);
414: vf.intarg.value='';
415: vf.krbarg.value='';
416: vf.locarg.value='';
417: }
418: }
419:
420: function clearpwd(vf) {
421: var i;
422: for (i=0;i<=vf.nfields.value;i++) {
423: if (eval('vf.f'+i+'.selectedIndex')==9) {
424: eval('vf.f'+i+'.selectedIndex=0;')
425: }
426: }
427: }
428:
429: ENDPICK
430: }
431:
432: ###############################################################
433: ###############################################################
434: sub upload_manager_javascript_reverse_associate {
435: return(<<ENDPICK);
436: function verify(vf) {
437: var founduname=0;
438: var foundpwd=0;
439: var foundname=0;
440: var foundid=0;
441: var foundsec=0;
442: var tw;
443: for (i=0;i<=vf.nfields.value;i++) {
444: tw=eval('vf.f'+i+'.selectedIndex');
445: if (i==0 && tw!=0) { founduname=1; }
446: if (((i>=1) && (i<=5)) && tw!=0 ) { foundname=1; }
447: if (i==6 && tw!=0) { foundid=1; }
448: if (i==7 && tw!=0) { foundsec=1; }
449: if (i==8 && tw!=0) { foundpwd=1; }
450: }
451: verify_message(vf,founduname,foundpwd,foundname,foundid,foundsec);
452: }
453:
454: function flip(vf,tf) {
455: var nw=eval('vf.f'+tf+'.selectedIndex');
456: var i;
457: // picked the all one one name field, reset the other name ones to blank
458: if (tf==1 && nw!=0) {
459: for (i=2;i<=5;i++) {
460: eval('vf.f'+i+'.selectedIndex=0;')
461: }
462: }
463: //picked one of the piecewise name fields, reset the all in
464: //one field to blank
465: if ((tf>=2) && (tf<=5) && (nw!=0)) {
466: eval('vf.f1.selectedIndex=0;')
467: }
468: // intial password specified, pick internal authentication
469: if (tf==8 && nw!=0) {
470: changed_radio('int',document.studentform);
471: set_auth_radio_buttons('int',document.studentform);
472: vf.krbarg.value='';
473: vf.intarg.value='';
474: vf.locarg.value='';
475: }
476: }
477:
478: function clearpwd(vf) {
479: var i;
480: if (eval('vf.f8.selectedIndex')!=0) {
481: eval('vf.f8.selectedIndex=0;')
482: }
483: }
484: ENDPICK
485: }
486:
487: ###############################################################
488: ###############################################################
489: sub print_upload_manager_footer {
490: my ($r,$i,$keyfields,$defdom,$today,$halfyear)=@_;
491:
492: my ($krbdef,$krbdefdom) =
493: &Apache::loncommon::get_kerberos_defaults($defdom);
494: my %param = ( formname => 'document.studentform',
495: kerb_def_dom => $krbdefdom,
496: kerb_def_auth => $krbdef
497: );
498: my $krbform = &Apache::loncommon::authform_kerberos(%param);
499: my $intform = &Apache::loncommon::authform_internal(%param);
500: my $locform = &Apache::loncommon::authform_local(%param);
501: my $domform = &domain_form($defdom);
502: my $date_table = &date_setting_table();
503: my $Str = "</table>\n";
504: $Str .= &hidden_input('nfields',$i);
505: $Str .= &hidden_input('keyfields',$keyfields);
506: $Str .= '<h3>'.&mt('Login Type')."</h3>\n";
507: $Str .= "<p>\n".
508: &mt('Note: this will not take effect if the user already exists').
509: "</p><p>\n";
510: $Str .= $krbform."\n</p><p>\n".
511: $intform."\n</p><p>\n".
512: $locform."\n</p>\n";
513: $Str .= '<h3>'.&mt('LON-CAPA Domain for Students')."</h3>\n";
514: $Str .= "<p>\n".&mt('LON-CAPA domain: [_1]',$domform)."\n</p>\n";
515: $Str .= "<h3>".&mt('Starting and Ending Dates')."</h3>\n";
516: $Str .= "<p>\n".$date_table."</p>\n";
517: $Str .= "<h3>".&mt('Full Update')."</h3>\n";
518: $Str .= '<input type="checkbox" name="fullup" value="yes">'.
519: ' '.&mt('Full update (also print list of users not enrolled anymore)').
520: "</p>\n";
521: $Str .= "<h3>".&mt('Student Number')."</h3>\n";
522: $Str .= "<p>\n".'<input type="checkbox" name="forceid" value="yes">';
523: $Str .= &mt('Disable ID/Student Number Safeguard and Force Change '.
524: 'of Conflicting IDs (only do if you know what you are doing)').
525: "\n</p><p>\n";
526: $Str .= '<input type="button" onClick="javascript:verify(this.form)" '.
527: 'value="Update Courselist" />'."<br />\n";
528: $Str .= &mt('Note: for large courses, this operation may be time '.
529: 'consuming');
530: $r->print($Str);
531: return;
532: }
533:
534: ###############################################################
535: ###############################################################
536: sub print_upload_manager_form {
537: my $r=shift;
538: my $firstLine;
539: my $datatoken;
540: if (!$ENV{'form.datatoken'}) {
541: $datatoken=&Apache::loncommon::upfile_store($r);
542: } else {
543: $datatoken=$ENV{'form.datatoken'};
544: &Apache::loncommon::load_tmp_file($r);
545: }
546: my @records=&Apache::loncommon::upfile_record_sep();
547: if($ENV{'form.noFirstLine'}){
548: $firstLine=shift(@records);
549: }
550: my $total=$#records;
551: my $distotal=$total+1;
552: my $today=time;
553: my $halfyear=$today+15552000;
554: my $defdom=$ENV{'course.'.$ENV{'request.course.id'}.'.domain'};
555: my ($krbdef,$krbdefdom) =
556: &Apache::loncommon::get_kerberos_defaults($defdom);
557: &print_upload_manager_header($r,$datatoken,$distotal,$krbdefdom);
558: my $i;
559: my $keyfields;
560: if ($total>=0) {
561: my @field=(['username',&mt('Username')],
562: ['names',&mt('Last Name, First Names')],
563: ['fname',&mt('First Name')],
564: ['mname',&mt('Middle Names/Initials')],
565: ['lname',&mt('Last Name')],
566: ['gen',&mt('Generation')],
567: ['id',&mt('ID/Student Number')],
568: ['sec',&mt('Group/Section')],
569: ['ipwd',&mt('Initial Password')],
570: ['email',&mt('EMail Address')]);
571: if ($ENV{'form.upfile_associate'} eq 'reverse') {
572: &Apache::loncommon::csv_print_samples($r,\@records);
573: $i=&Apache::loncommon::csv_print_select_table($r,\@records,
574: \@field);
575: foreach (@field) {
576: $keyfields.=$_->[0].',';
577: }
578: chop($keyfields);
579: } else {
580: unshift(@field,['none','']);
581: $i=&Apache::loncommon::csv_samples_select_table($r,\@records,
582: \@field);
583: my %sone=&Apache::loncommon::record_sep($records[0]);
584: $keyfields=join(',',sort(keys(%sone)));
585: }
586: }
587: &print_upload_manager_footer($r,$i,$keyfields,$defdom,$today,$halfyear);
588: }
589:
590: ###############################################################
591: ###############################################################
592: sub enroll_single_student {
593: my $r=shift;
594: # Remove non alphanumeric values from section
595: $ENV{'form.csec'}=~s/\W//g;
596: #
597: # We do the dates first because the action of making them the defaul
598: # in the course is entirely seperate from the action of enrolling the
599: # student. Also, a failure in setting the dates as default is not fatal
600: # to the process of enrolling / modifying a student.
601: my ($startdate,$enddate) = &get_dates_from_form();
602: if ($ENV{'form.makedatesdefault'}) {
603: $r->print(&make_dates_default($startdate,$enddate));
604: }
605:
606: $r->print('<h3>Enrolling Student</h3>');
607: $r->print('<p>Enrolling '.$ENV{'form.cuname'}." \@ ".
608: $ENV{'form.lcdomain'}.'</p>');
609: if (($ENV{'form.cuname'})&&($ENV{'form.cuname'}!~/\W/)&&
610: ($ENV{'form.lcdomain'})&&($ENV{'form.lcdomain'}!~/\W/)) {
611: # Deal with home server selection
612: my $domain=$ENV{'form.lcdomain'};
613: my $desiredhost = $ENV{'form.lcserver'};
614: if (lc($desiredhost) eq 'default') {
615: $desiredhost = undef;
616: } else {
617: my %home_servers =&Apache::loncommon::get_library_servers($domain);
618: if (! exists($home_servers{$desiredhost})) {
619: $r->print('<font color="#ff0000">Error:</font>'.
620: 'Invalid home server specified');
621: return;
622: }
623: }
624: $r->print(" with server $desiredhost :") if (defined($desiredhost));
625: # End of home server selection logic
626: my $amode='';
627: my $genpwd='';
628: if ($ENV{'form.login'} eq 'krb') {
629: $amode='krb';
630: $amode.=$ENV{'form.krbver'};
631: $genpwd=$ENV{'form.krbarg'};
632: } elsif ($ENV{'form.login'} eq 'int') {
633: $amode='internal';
634: $genpwd=$ENV{'form.intarg'};
635: } elsif ($ENV{'form.login'} eq 'loc') {
636: $amode='localauth';
637: $genpwd=$ENV{'form.locarg'};
638: if (!$genpwd) { $genpwd=" "; }
639: }
640: my $home = &Apache::lonnet::homeserver($ENV{'form.cuname'},
641: $ENV{'form.lcdomain'});
642: if ((($amode) && ($genpwd)) || ($home ne 'no_host')) {
643: # Clean out any old roles the student has in this class.
644: &modifystudent($ENV{'form.lcdomain'},$ENV{'form.cuname'},
645: $ENV{'request.course.id'},$ENV{'form.csec'},
646: $desiredhost);
647: my $login_result = &Apache::lonnet::modifystudent
648: ($ENV{'form.lcdomain'},$ENV{'form.cuname'},
649: $ENV{'form.cstid'},$amode,$genpwd,
650: $ENV{'form.cfirst'},$ENV{'form.cmiddle'},
651: $ENV{'form.clast'},$ENV{'form.cgen'},
652: $ENV{'form.csec'},$enddate,
653: $startdate,$ENV{'form.forceid'},
654: $desiredhost);
655: if ($login_result =~ /^ok/) {
656: $r->print($login_result);
657: $r->print("<p> If active, the new role will be available ".
658: "when the student next logs in to LON-CAPA.</p>");
659: } else {
660: $r->print("unable to enroll: ".$login_result);
661: }
662: } else {
663: $r->print('<p><font color="#ff0000">ERROR</font> ');
664: if ($amode =~ /^krb/) {
665: $r->print('Missing Kerberos domain information. ');
666: } else {
667: $r->print('Invalid login mode or password. ');
668: }
669: $r->print('<b>Unable to enroll '.$ENV{'form.cuname'}.'.</b></p>');
670: }
671: } else {
672: $r->print('Invalid username or domain');
673: }
674: }
675:
676: sub setup_date_selectors {
677: my ($starttime,$endtime) = @_;
678: if (! defined($starttime)) {
679: $starttime = time;
680: if (exists($ENV{'course.'.$ENV{'request.course.id'}.
681: '.default_enrollment_start_date'})) {
682: $starttime = $ENV{'course.'.$ENV{'request.course.id'}.
683: '.default_enrollment_start_date'};
684: }
685: }
686: if (! defined($endtime)) {
687: $endtime = time+(6*30*24*60*60); # 6 months from now, approx
688: if (exists($ENV{'course.'.$ENV{'request.course.id'}.
689: '.default_enrollment_end_date'})) {
690: $endtime = $ENV{'course.'.$ENV{'request.course.id'}.
691: '.default_enrollment_end_date'};
692: }
693: }
694: my $startdateform = &Apache::lonhtmlcommon::date_setter('studentform',
695: 'startdate',
696: $starttime);
697: my $enddateform = &Apache::lonhtmlcommon::date_setter('studentform',
698: 'enddate',
699: $endtime);
700: return ($startdateform,$enddateform);
701: }
702:
703: sub get_dates_from_form {
704: my $startdate = &Apache::lonhtmlcommon::get_date_from_form('startdate');
705: my $enddate = &Apache::lonhtmlcommon::get_date_from_form('enddate');
706: if ($ENV{'form.no_end_date'}) {
707: $enddate = 0;
708: }
709: return ($startdate,$enddate);
710: }
711:
712: sub date_setting_table {
713: my ($starttime,$endtime) = @_;
714: my ($startform,$endform)=&setup_date_selectors($starttime,$endtime);
715: my $dateDefault = '<nobr>'.
716: '<input type="checkbox" name="makedatesdefault" />'.
717: ' make these dates the default for future enrollment';
718: my $perpetual = '<nobr><input type="checkbox" name="no_end_date"';
719: if (defined($endtime) && $endtime == 0) {
720: $perpetual .= ' checked';
721: }
722: $perpetual.= ' />'.' no ending date</nobr>';
723: my $result = '';
724: $result .= "<table>\n";
725: $result .= '<tr><td align="right">Starting Date</td>'.
726: '<td>'.$startform.'</td>'.
727: '<td>'.$dateDefault.'</td>'."</tr>\n";
728: $result .= '<tr><td align="right">Ending Date</td>'.
729: '<td>'.$endform.'</td>'.
730: '<td>'.$perpetual.'</td>'."</tr>\n";
731: $result .= "</table>\n";
732: return $result;
733: }
734:
735: sub make_dates_default {
736: my ($startdate,$enddate) = @_;
737: my $result = '';
738: my $dom = $ENV{'course.'.$ENV{'request.course.id'}.'.domain'};
739: my $crs = $ENV{'course.'.$ENV{'request.course.id'}.'.num'};
740: my $put_result = &Apache::lonnet::put('environment',
741: {'default_enrollment_start_date'=>$startdate,
742: 'default_enrollment_end_date' =>$enddate},$dom,$crs);
743: if ($put_result eq 'ok') {
744: $result .= "Set default start and end dates for course<br />";
745: #
746: # Refresh the course environment
747: &Apache::lonnet::coursedescription($ENV{'request.course.id'});
748: } else {
749: $result .= "Unable to set default dates for course:".$put_result.
750: '<br />';
751: }
752: return $result;
753: }
754:
755: ##
756: ## Single student enrollment routines (some of them)
757: ##
758: sub get_student_username_domain_form {
759: my $r = shift;
760: my $domform = &Apache::loncommon::select_dom_form
761: ($ENV{'course.'.$ENV{'request.course.id'}.'.domain'},'cudomain',0);
762: $r->print(<<END);
763: <input type="hidden" name="action" value="enrollstudent" />
764: <input type="hidden" name="state" value="gotusername" />
765: <h3>Enroll One Student</h3>
766: <table>
767: <tr><th>Username:</th>
768: <td><input type="text" name="cuname" size="15" /></td></tr>
769: <tr><th>Domain:</th>
770: <td>$domform</td></tr>
771: <tr><th> </th>
772: <td>
773: <input type="submit" name="Begin Enrollment" value="Begin Enrollment" />
774: </td></tr>
775: </table>
776: END
777: return;
778: }
779:
780: sub print_enroll_single_student_form {
781: my $r=shift;
782: $r->print("<h3>Enroll One Student</h3>");
783: #
784: my $username = $ENV{'form.cuname'};
785: my $domain = $ENV{'form.cudomain'};
786: my $home = &Apache::lonnet::homeserver($username,$domain);
787: # $new_user flags whether we are creating a new user or using an old one
788: my $new_user = 1;
789: if ($home ne 'no_host') {
790: $new_user = 0;
791: }
792: #
793: my $user_data_html = '';
794: my $javascript_validations = '';
795: if ($new_user) {
796: my $defdom=$ENV{'course.'.$ENV{'request.course.id'}.'.domain'};
797: # Set up authentication forms
798: my ($krbdef,$krbdefdom) =
799: &Apache::loncommon::get_kerberos_defaults($domain);
800: $javascript_validations=&javascript_validations('auth',$krbdefdom);
801: my %param = ( formname => 'document.studentform',
802: kerb_def_dom => $krbdefdom,
803: kerb_def_auth => $krbdef
804: );
805: my $krbform = &Apache::loncommon::authform_kerberos(%param);
806: my $intform = &Apache::loncommon::authform_internal(%param);
807: my $locform = &Apache::loncommon::authform_local(%param);
808: #
809: # Set up domain selection form
810: my $homeserver_form = '';
811: my %servers = &Apache::loncommon::get_library_servers($domain);
812: $homeserver_form = '<select name="lcserver" size="1">'."\n".
813: '<option value="default" selected>default</option>'."\n";
814: while (my ($servername,$serverdescription) = each (%servers)) {
815: $homeserver_form .= '<option value="'.$servername.'">'.
816: $serverdescription."</option>\n";
817: }
818: $homeserver_form .= "</select>\n";
819: #
820: #
821: $user_data_html = <<END;
822: <h3>User Data for $username\@$domain</h3>
823: <table>
824: <tr><th>First Name:</th>
825: <td><input type="text" name="cfirst" size="15"></td></tr>
826: <tr><th>Middle Name:</th>
827: <td><input type="text" name="cmiddle" size="15"></td></tr>
828: <tr><th>Last Name:</th>
829: <td><input type="text" name="clast" size="15"></td></tr>
830: <tr><th>Generation:</th>
831: <td><input type="text" name="cgen" size="5"> </td></tr>
832: <tr><th>Home Server:</th>
833: <td>$homeserver_form</td></tr>
834: </table>
835: <h3>Password</h3>
836: Please select an authentication mechanism
837: <table>
838: <p>
839: $krbform
840: <br />
841: $intform
842: <br />
843: $locform
844: </p>
845: END
846: } else {
847: # User already exists. Do not worry about authentication
848: my %uenv = &Apache::lonnet::dump('environment',$domain,$username);
849: $javascript_validations = &javascript_validations('noauth');
850: $user_data_html = <<END;
851: <h3>User Data for $username\@$domain</h3>
852: <input type="hidden" name="lcserver" value="default" />
853: <table>
854: <tr><th>First Name:</th>
855: <td>
856: <input type="text" name="cfirst" value="$uenv{'firstname'}" size="15" />
857: </td></tr>
858: <tr><th>Middle Name:</th>
859: <td>
860: <input type="text" name="cmiddle" value="$uenv{'middlename'}" size="15" />
861: </td></tr>
862: <tr><th>Last Name:</th>
863: <td>
864: <input type="text" name="clast"value="$uenv{'lastname'}" size="15" />
865: </td></tr>
866: <tr><th>Generation:</th>
867: <td>
868: <input type="text" name="cgen" value="$uenv{'generation'}" size="5" />
869: </td></tr>
870: </table>
871: END
872: }
873: my $date_table = &date_setting_table();
874: # Print it all out
875: $r->print(<<END);
876: <input type="hidden" name="action" value="enrollstudent" />
877: <input type="hidden" name="state" value="done" />
878: <input type="hidden" name="cuname" value="$username" />
879: <input type="hidden" name="lcdomain" value="$domain" />
880: <script type="text/javascript" language="Javascript">
881: function verify(vf) {
882: var founduname=0;
883: var foundpwd=0;
884: var foundname=0;
885: var foundid=0;
886: var foundsec=0;
887: var tw;
888: if ((typeof(vf.cuname.value) !="undefined") && (vf.cuname.value!='') &&
889: (typeof(vf.lcdomain.value)!="undefined") && (vf.lcdomain.value!='')) {
890: founduname=1;
891: }
892: if ((typeof(vf.cfirst.value)!="undefined") && (vf.cfirst.value!='') &&
893: (typeof(vf.clast.value) !="undefined") && (vf.clast.value!='')) {
894: foundname=1;
895: }
896: if ((typeof(vf.csec.value)!="undefined") && (vf.csec.value!='')) {
897: foundsec=1;
898: }
899: if ((typeof(vf.cstid.value)!="undefined") && (vf.cstid.value!='')) {
900: foundid=1;
901: }
902: if (founduname==0) {
903: alert('You need to specify at least the username and domain fields');
904: return;
905: }
906: verify_message(vf,founduname,foundpwd,foundname,foundid,foundsec);
907: }
908:
909: $javascript_validations
910:
911: function clearpwd(vf) {
912: //nothing else needs clearing
913: }
914:
915: </script>
916:
917: $user_data_html
918:
919: <h3>Course Data</h3>
920:
921: <p>Group/Section: <input type="text" name="csec" size="5" />
922: <p>
923: $date_table
924: </p>
925: <h3>ID/Student Number</h3>
926: <p>
927: ID/Student Number: <input type="text" name="cstid" size="10">
928: </p><p>
929: <input type="checkbox" name="forceid" value="yes">
930: Disable ID/Student Number Safeguard and Force Change of Conflicting IDs
931: (only do if you know what you are doing)
932: </p><p>
933: <input type="button" onClick="verify(this.form)" value="Enroll as student">
934: </p>
935: END
936: return;
937: }
938:
939: # ========================================================= Menu Phase Two Drop
940: sub print_drop_menu {
941: my $r=shift;
942: $r->print("<h3>Drop Students</h3>");
943: my $cid=$ENV{'request.course.id'};
944: my ($classlist,$keylist) = &Apache::loncoursedata::get_classlist();
945: if (! defined($classlist)) {
946: $r->print("There are no students currently enrolled.\n");
947: return;
948: }
949: # Print out the available choices
950: &show_drop_list($r,$classlist,$keylist);
951: return;
952: }
953:
954: # ============================================== view classlist
955: sub print_html_classlist {
956: my $r=shift;
957: if (! exists($ENV{'form.sortby'})) {
958: $ENV{'form.sortby'} = 'username';
959: }
960: if ($ENV{'form.Status'} !~ /^(Any|Expired|Active)$/) {
961: $ENV{'form.Status'} = 'Active';
962: }
963: my $status_select = &Apache::lonhtmlcommon::StatusOptions
964: ($ENV{'form.Status'},'studentform');
965: $r->print(<<END);
966: <input type="hidden" name="action" value="$ENV{'form.action'}" />
967: <input type="hidden" name="state" value="" />
968: <p>
969: <font size="+1">Current Class List</font>
970:
971: END
972: if ($ENV{'form.action'} ne 'modifystudent') {
973: $r->print(<<END);
974: <font size="+1">
975: <a href="javascript:document.studentform.state.value='csv';document.studentform.submit();">CSV format</a>
976:
977: <a href="javascript:document.studentform.state.value='excel';document.studentform.submit();">Excel format</a>
978: </font>
979:
980: Student Status:
981: END
982: }
983: $r->print($status_select."</p>\n");
984: my $cid=$ENV{'request.course.id'};
985: my ($classlist,$keylist)=&Apache::loncoursedata::get_classlist();
986: if (! defined($classlist)) {
987: $r->print("There are no students currently enrolled.\n");
988: } else {
989: # Print out the available choices
990: if ($ENV{'form.action'} eq 'modifystudent') {
991: &show_class_list($r,'view','modify','modifystudent',
992: $ENV{'form.Status'},$classlist,$keylist);
993: } else {
994: &show_class_list($r,'view','aboutme','classlist',
995: $ENV{'form.Status'},$classlist,$keylist);
996: }
997: }
998: }
999:
1000: # ============================================== view classlist
1001: sub print_formatted_classlist {
1002: my $r=shift;
1003: my $mode = shift;
1004: my $cid=$ENV{'request.course.id'};
1005: my ($classlist,$keylist)=&Apache::loncoursedata::get_classlist();
1006: if (! defined($classlist)) {
1007: $r->print("There are no students currently enrolled.\n");
1008: } else {
1009: &show_class_list($r,$mode,'nolink','csv',
1010: $ENV{'form.Status'},$classlist,$keylist);
1011: }
1012: }
1013:
1014: # =================================================== Show student list to drop
1015: sub show_class_list {
1016: my ($r,$mode,$linkto,$action,$statusmode,$classlist,$keylist)=@_;
1017: my $cid=$ENV{'request.course.id'};
1018: #
1019: # Variables for excel output
1020: my ($excel_workbook, $excel_sheet, $excel_filename,$row);
1021: #
1022: my $sortby = $ENV{'form.sortby'};
1023: if ($sortby !~ /^(username|domain|section|fullname|id)$/) {
1024: $sortby = 'username';
1025: }
1026: # Print out header
1027: if ($mode eq 'view') {
1028: if ($linkto eq 'aboutme') {
1029: $r->print('Select a user name to view the users personal page.');
1030: } elsif ($linkto eq 'modify') {
1031: $r->print('Select a user name to modify the students information');
1032: }
1033: $r->print(<<END);
1034:
1035: <input type="hidden" name="sortby" value="$sortby" />
1036: <input type="hidden" name="sname" value="" />
1037: <input type="hidden" name="sdom" value="" />
1038: <p>
1039: <table border=2>
1040: <tr><th>
1041: <a href="javascript:document.studentform.sortby.value='username';document.studentform.submit();">username</a>
1042: </th><th>
1043: <a href="javascript:document.studentform.sortby.value='domain';document.studentform.submit();">domain</a>
1044: </th><th>
1045: <a href="javascript:document.studentform.sortby.value='id';document.studentform.submit();">ID</a>
1046: </th><th>
1047: <a href="javascript:document.studentform.sortby.value='fullname';document.studentform.submit();">student name</a>
1048: </th><th>
1049: <a href="javascript:document.studentform.sortby.value='section';document.studentform.submit();">section</a>
1050: </th>
1051: </tr>
1052: END
1053: } elsif ($mode eq 'csv') {
1054: if($statusmode eq 'Expired') {
1055: $r->print('"Students with expired roles"');
1056: }
1057: if ($statusmode eq 'Any') {
1058: $r->print('"'.join('","',("username","domain","ID","student name",
1059: "section","status")).'"'."\n");
1060: } else {
1061: $r->print('"'.join('","',("username","domain","ID","student name",
1062: "section")).'"'."\n");
1063: }
1064: } elsif ($mode eq 'excel') {
1065: # Create the excel spreadsheet
1066: $excel_filename = '/prtspool/'.
1067: $ENV{'user.name'}.'_'.$ENV{'user.domain'}.'_'.
1068: time.'_'.rand(1000000000).'.xls';
1069: $excel_workbook = Spreadsheet::WriteExcel->new('/home/httpd'.
1070: $excel_filename);
1071: $excel_workbook->set_tempdir('/home/httpd/perl/tmp');
1072: $excel_sheet = $excel_workbook->addworksheet('classlist');
1073: #
1074: my $description = 'Class List for '.
1075: $ENV{'course.'.$ENV{'request.course.id'}.'.description'};
1076: $excel_sheet->write($row++,0,$description);
1077: #
1078: $excel_sheet->write($row++,0,["username","domain","ID",
1079: "student name","section","status"]);
1080: }
1081: #
1082: # Sort the students
1083: my %index;
1084: my $i;
1085: foreach (@$keylist) {
1086: $index{$_} = $i++;
1087: }
1088: my $index = $index{$sortby};
1089: my $second = $index{'username'};
1090: my $third = $index{'domain'};
1091: my @Sorted_Students = sort {
1092: lc($classlist->{$a}->[$index]) cmp lc($classlist->{$b}->[$index])
1093: ||
1094: lc($classlist->{$a}->[$second]) cmp lc($classlist->{$b}->[$second])
1095: ||
1096: lc($classlist->{$a}->[$third]) cmp lc($classlist->{$b}->[$third])
1097: } (keys(%$classlist));
1098: foreach my $student (@Sorted_Students) {
1099: my $username = $classlist->{$student}->[$index{'username'}];
1100: my $domain = $classlist->{$student}->[$index{'domain'}];
1101: my $section = $classlist->{$student}->[$index{'section'}];
1102: my $name = $classlist->{$student}->[$index{'fullname'}];
1103: my $id = $classlist->{$student}->[$index{'id'}];
1104: my $status = $classlist->{$student}->[$index{'status'}];
1105: next if (($statusmode ne 'Any') && ($status ne $statusmode));
1106: if ($mode eq 'view') {
1107: $r->print("<tr>\n <td>\n ");
1108: if ($linkto eq 'nothing') {
1109: $r->print($username);
1110: } elsif ($linkto eq 'aboutme') {
1111: $r->print(&Apache::loncommon::aboutmewrapper($username,
1112: $username,
1113: $domain));
1114: } elsif ($linkto eq 'modify') {
1115: $r->print('<a href="'.
1116: "javascript:document.studentform.sname.value='".
1117: $username.
1118: "';document.studentform.sdom.value='".$domain.
1119: "';document.studentform.state.value='selected".
1120: "';document.studentform.submit();".'">'.
1121: $username."</a>\n");
1122: }
1123: $r->print(<<"END");
1124: </td>
1125: <td>$domain</td>
1126: <td>$id</td>
1127: <td>$name</td>
1128: <td>$section</td>
1129: </tr>
1130: END
1131: } elsif ($mode eq 'csv') {
1132: # no need to bother with $linkto
1133: my @line = ();
1134: foreach ($username,$domain,$id,$name,$section) {
1135: push @line,&Apache::loncommon::csv_translate($_);
1136: }
1137: if ($statusmode eq 'Any') {
1138: push @line,&Apache::loncommon::csv_translate($status);
1139: }
1140: my $tmp = $";
1141: $" = '","';
1142: $r->print("\"@line\"\n");
1143: $" = $tmp;
1144: } elsif ($mode eq 'excel') {
1145: $excel_sheet->write($row++,0,[$username,$domain,$id,
1146: $name,$section,$status]);
1147: }
1148: }
1149: if ($mode eq 'view') {
1150: $r->print('</table><br>');
1151: } elsif ($mode eq 'excel') {
1152: $excel_workbook->close();
1153: $r->print('<p><a href="'.$excel_filename.'">'.
1154: 'Your Excel spreadsheet</a> is ready for download.</p>'."\n");
1155: }
1156: }
1157:
1158:
1159: #
1160: # print out form for modification of a single students data
1161: #
1162: sub print_modify_student_form {
1163: my $r = shift();
1164: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
1165: ['sdom','sname']);
1166: my $sname = $ENV{'form.sname'};
1167: my $sdom = $ENV{'form.sdom'};
1168: my $sortby = $ENV{'form.sortby'};
1169: # determine the students name information
1170: my %info=&Apache::lonnet::get('environment',
1171: ['firstname','middlename',
1172: 'lastname','generation','id'],
1173: $sdom, $sname);
1174: my ($tmp) = keys(%info);
1175: if ($tmp =~ /^(con_lost|error|no_such_host)/i) {
1176: $r->print('<font color="#ff0000" size="+2">Error</font>'.
1177: '<p>'.
1178: 'Unable to retrieve environment data for '.$sname.
1179: 'in domain '.$sdom.'</p><p>'.
1180: 'Please contact your LON-CAPA administrator '.
1181: 'regarding this situation.</p></body></html>');
1182: return;
1183: }
1184: # determine the students starting and ending times and section
1185: my ($starttime,$endtime,$section) = &get_enrollment_data($sname,$sdom);
1186: if ($starttime =~ /^error/) {
1187: $r->print('<h2>Error</h2>');
1188: $r->print('<p>'.$starttime.'</p>');
1189: return;
1190: }
1191: # Deal with date forms
1192: my $date_table = &date_setting_table($starttime,$endtime);
1193: #
1194: if (! exists($ENV{'form.Status'}) ||
1195: $ENV{'form.Status'} !~ /^(Any|Expired|Active)$/) {
1196: $ENV{'form.Status'} = 'crap';
1197: }
1198: # Make sure student is enrolled in course
1199: $r->print(<<END);
1200: <p>
1201: <font size="+1">
1202: Only domain coordinators can change a users password.
1203: </font>
1204: </p>
1205: <input type="hidden" name="slogin" value="$sname" />
1206: <input type="hidden" name="sdomain" value="$sdom" />
1207: <input type="hidden" name="action" value="modifystudent" />
1208: <input type="hidden" name="state" value="done" />
1209: <input type="hidden" name="sortby" value="$sortby" />
1210: <input type="hidden" name="Status" value="$ENV{'form.Status'}" />
1211:
1212: <h2>Modify Enrollment for $info{'firstname'} $info{'middlename'}
1213: $info{'lastname'} $info{'generation'}, $sname\@$sdom</h2>
1214: <p>
1215: <b>Student Name</b>
1216: <table>
1217: <tr><th>First</th><th>Middle</th><th>Last</th><th>Generation</th></tr>
1218: <tr><td>
1219: <input type="text" name="firstname" value="$info{'firstname'}" /></td><td>
1220: <input type="text" name="middlename" value="$info{'middlename'}" /></td><td>
1221: <input type="text" name="lastname" value="$info{'lastname'}" /></td><td>
1222: <input type="text" name="generation" value="$info{'generation'}" /></td></tr>
1223: </table>
1224: </p><p>
1225: <b>Student ID</b>: <input type="text" name="id" value="$info{'id'}" size="12"/>
1226: </p><p>
1227: <input type="checkbox" name="forceid" >
1228: Disable ID/Student Number Safeguard and Force Change of Conflicting IDs
1229: (only do if you know what you are doing)
1230: </p><p>
1231: <b>Section</b>: <input type="text" name="section" value="$section" size="4"/>
1232: </p>
1233: <p>$date_table</p>
1234: <input type="submit" value="Submit Modifications" />
1235: </body></html>
1236: END
1237: return;
1238: }
1239:
1240: #
1241: # modify a single students section
1242: #
1243: sub modify_single_student {
1244: my $r = shift;
1245: #
1246: # Remove non alphanumeric values from the section
1247: $ENV{'form.section'} =~ s/\W//g;
1248: #
1249: # Do the date defaults first
1250: my ($starttime,$endtime) = &get_dates_from_form();
1251: if ($ENV{'form.makedatesdefault'}) {
1252: $r->print(&make_dates_default($starttime,$endtime));
1253: }
1254: # Get the 'sortby' and 'Status' variables so the user goes back to their
1255: # previous screen
1256: my $sortby = $ENV{'form.sortby'};
1257: my $status = $ENV{'form.Status'};
1258: #
1259: # We always need this information
1260: my $slogin = $ENV{'form.slogin'};
1261: my $sdom = $ENV{'form.sdomain'};
1262: #
1263: # Get the old data
1264: my %old=&Apache::lonnet::get('environment',
1265: ['firstname','middlename',
1266: 'lastname','generation','id'],
1267: $sdom, $slogin);
1268: $old{'section'} = &Apache::lonnet::getsection($sdom,$slogin,
1269: $ENV{'request.course.id'});
1270: my ($tmp) = keys(%old);
1271: if ($tmp =~ /^(con_lost|error|no_such_host)/i) {
1272: $r->print("There was an error determining the environment values ".
1273: " for $slogin \@ $sdom.");
1274: return;
1275: }
1276: undef $tmp;
1277: #
1278: # Get the new data
1279: my $firstname = $ENV{'form.firstname'};
1280: my $middlename = $ENV{'form.middlename'};
1281: my $lastname = $ENV{'form.lastname'};
1282: my $generation = $ENV{'form.generation'};
1283: my $section = $ENV{'form.section'};
1284: my $courseid = $ENV{'request.course.id'};
1285: my $sid = $ENV{'form.id'};
1286: my $displayable_starttime = localtime($starttime);
1287: my $displayable_endtime = localtime($endtime);
1288: #
1289: # check for forceid override
1290: if ((defined($old{'id'})) && ($old{'id'} ne '') &&
1291: ($sid ne $old{'id'}) && (! exists($ENV{'form.forceid'}))) {
1292: $r->print("<font color=\"ff0000\">You changed the students id ".
1293: " but did not disable the ID change safeguard.".
1294: " The students id will not be changed.</font>");
1295: $sid = $old{'id'};
1296: }
1297: #
1298: # talk to the user about what we are going to do
1299: $r->print(<<END);
1300: <h2>Modifying data for user $slogin \@ $sdom </h2>
1301: <h3>Student Information</h3>
1302: <table rules="rows" border="1" cellpadding="3" >
1303: <tr>
1304: <th> Field </th>
1305: <th> Old Value </th>
1306: <th> New Value </th>
1307: </tr>
1308: <tr>
1309: <td> <b>First name</b> </td>
1310: <td> $old{'firstname'} </td>
1311: <td> $firstname </td>
1312: </tr><tr>
1313: <td> <b>Middle name</b> </td>
1314: <td> $old{'middlename'} </td>
1315: <td> $middlename </td>
1316: </tr><tr>
1317: <td> <b>Last name</b> </td>
1318: <td> $old{'lastname'} </td>
1319: <td> $lastname </td>
1320: </tr><tr>
1321: <td> <b>Generation</b> </td>
1322: <td> $old{'generation'} </td>
1323: <td> $generation </td>
1324: </tr><tr>
1325: <td> <b>ID</b> </td>
1326: <td> $old{'id'} </td>
1327: <td> $sid </td>
1328: </tr><tr>
1329: <td> <b>Section</b> </td>
1330: <td> $old{'section'} </td>
1331: <td> $section</td>
1332: </tr>
1333: </table>
1334: <h3>Role Information</h3>
1335: <table>
1336: <tr><td align="right"><b>Start Time:</b></td><td> $displayable_starttime </td></tr>
1337: <tr><td align="right"><b>End Time:</b></td><td> $displayable_endtime </td></tr>
1338: </table>
1339: <p>
1340: END
1341: #
1342: # Send request(s) to modify data (final undef is for 'desiredhost',
1343: # which is a moot point because the student already has an account.
1344: my $modify_section_results = &modifystudent($sdom,$slogin,
1345: $ENV{'request.course.id'},
1346: $section,undef);
1347: if ($modify_section_results !~ /^ok/) {
1348: $r->print("An error occured during the attempt to change the ".
1349: "section for this student.<br />");
1350: }
1351: my $roleresults = &Apache::lonnet::modifystudent
1352: ($sdom,$slogin,$sid,undef,undef,$firstname,$middlename,$lastname,
1353: $generation,$section,$endtime,$starttime,$ENV{'form.forceid'});
1354: if ($roleresults eq 'refused' ) {
1355: $r->print("Your request to change the role information for this ".
1356: "student was refused. You do not appear to have ".
1357: "sufficient authority to change student information.");
1358: } elsif ($roleresults !~ /ok/) {
1359: $r->print("An error occurred during the attempt to change the role".
1360: " information for this student. <br />".
1361: "The error reported was ".
1362: $roleresults);
1363: &Apache::lonnet::logthis("londropadd:failed attempt to modify student".
1364: " data for ".$slogin." \@ ".$sdom." by ".
1365: $ENV{'user.name'}." \@ ".$ENV{'user.domain'}.
1366: ":".$roleresults);
1367: } else { # everything is okay!
1368: $r->print("Student information updated successfully. <br />".
1369: "The student must log out and log in again to see ".
1370: "these changes.");
1371: }
1372: $r->print(<<END);
1373: </p><p>
1374: <input type="hidden" name="action" value="modifystudent" />
1375: <input type="hidden" name="sortby" value="$sortby" />
1376: <input type="hidden" name="Status" value="$status" />
1377: <a href="javascript:document.studentform.submit();">Modify another students data</a>
1378: </body></html>
1379: END
1380: return;
1381: }
1382:
1383: sub get_enrollment_data {
1384: my ($sname,$sdomain) = @_;
1385: my $courseid = $ENV{'request.course.id'};
1386: $courseid =~ s:_:/:g;
1387: my %roles = &Apache::lonnet::dump('roles',$sdomain,$sname);
1388: my ($tmp) = keys(%roles);
1389: # Bail out if we were unable to get the students roles
1390: return ('error'.$tmp) if ($tmp =~ /^(con_lost|error|no_such_host)/i);
1391: # Go through the roles looking for enrollment in this course
1392: my ($end,$start) = (undef,undef);
1393: my $section = '';
1394: my $count = scalar(keys(%roles));
1395: while (my ($course,$role) = each(%roles)) {
1396: if ($course=~ /^\/$courseid\/*\s*(\w+)*_st$/ ) {
1397: #
1398: # Get active role
1399: $section=$1;
1400: (undef,$end,$start)=split(/\_/,$role);
1401: my $now=time;
1402: my $notactive=0;
1403: if ($start) {
1404: if ($now<$start) { $notactive=1; }
1405: }
1406: if ($end) {
1407: if ($now>$end) { $notactive=1; }
1408: }
1409: unless ($notactive) { return ($start,$end,$section); }
1410: }
1411: }
1412: return ($start,$end,$section);
1413: }
1414:
1415: #################################################
1416: #################################################
1417:
1418: =pod
1419:
1420: =item show_drop_list
1421:
1422: Display a list of students to drop
1423: Inputs:
1424:
1425: =over 4
1426:
1427: =item $r, Apache request
1428:
1429: =item $classlist, hash pointer returned from loncoursedata::get_classlist();
1430:
1431: =item $keylist, array pointer returned from loncoursedata::get_classlist()
1432: which describes the order elements are stored in the %$classlist values.
1433:
1434: =item $nosort, if true, sorting links are omitted.
1435:
1436: =back
1437:
1438: =cut
1439:
1440: #################################################
1441: #################################################
1442: sub show_drop_list {
1443: my ($r,$classlist,$keylist,$nosort)=@_;
1444: my $cid=$ENV{'request.course.id'};
1445: if (! exists($ENV{'form.sortby'})) {
1446: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
1447: ['sortby']);
1448: }
1449: my $sortby = $ENV{'form.sortby'};
1450: if ($sortby !~ /^(username|domain|section|fullname|id)$/) {
1451: $sortby = 'username';
1452: }
1453: #
1454: my $action = "drop";
1455: $r->print(<<END);
1456: <input type="hidden" name="sortby" value="$sortby" />
1457: <input type="hidden" name="action" value="$action" />
1458: <input type="hidden" name="state" value="done" />
1459: <script>
1460: function checkAll(field) {
1461: for (i = 0; i < field.length; i++)
1462: field[i].checked = true ;
1463: }
1464:
1465: function uncheckAll(field) {
1466: for (i = 0; i < field.length; i++)
1467: field[i].checked = false ;
1468: }
1469: </script>
1470: <p>
1471: <input type="hidden" name="phase" value="four">
1472: END
1473:
1474: if ($nosort) {
1475: $r->print(<<END);
1476: <table border=2>
1477: <tr>
1478: <th> </th>
1479: <th>username</th>
1480: <th>domain</th>
1481: <th>ID</th>
1482: <th>student name</th>
1483: <th>section</th>
1484: </tr>
1485: END
1486:
1487: } else {
1488: $r->print(<<END);
1489: <table border=2>
1490: <tr><th> </th>
1491: <th>
1492: <a href="/adm/dropadd?action=$action&sortby=username">username</a>
1493: </th><th>
1494: <a href="/adm/dropadd?action=$action&sortby=domain">domain</a>
1495: </th><th>
1496: <a href="/adm/dropadd?action=$action&sortby=id">ID</a>
1497: </th><th>
1498: <a href="/adm/dropadd?action=$action&sortby=fullname">student name</a>
1499: </th><th>
1500: <a href="/adm/dropadd?action=$action&sortby=section">section</a>
1501: </th>
1502: </tr>
1503: END
1504: }
1505: #
1506: # Sort the students
1507: my %index;
1508: my $i;
1509: foreach (@$keylist) {
1510: $index{$_} = $i++;
1511: }
1512: my $index = $index{$sortby};
1513: my $second = $index{'username'};
1514: my $third = $index{'domain'};
1515: my @Sorted_Students = sort {
1516: lc($classlist->{$a}->[$index]) cmp lc($classlist->{$b}->[$index])
1517: ||
1518: lc($classlist->{$a}->[$second]) cmp lc($classlist->{$b}->[$second])
1519: ||
1520: lc($classlist->{$a}->[$third]) cmp lc($classlist->{$b}->[$third])
1521: } (keys(%$classlist));
1522: foreach my $student (@Sorted_Students) {
1523: my $error;
1524: my $username = $classlist->{$student}->[$index{'username'}];
1525: my $domain = $classlist->{$student}->[$index{'domain'}];
1526: my $section = $classlist->{$student}->[$index{'section'}];
1527: my $name = $classlist->{$student}->[$index{'fullname'}];
1528: my $id = $classlist->{$student}->[$index{'id'}];
1529: my $status = $classlist->{$student}->[$index{'status'}];
1530: next if ($status ne 'Active');
1531: #
1532: $r->print(<<"END");
1533: <tr>
1534: <td><input type="checkbox" name="droplist" value="$student"></td>
1535: <td>$username</td>
1536: <td>$domain</td>
1537: <td>$id</td>
1538: <td>$name</td>
1539: <td>$section</td>
1540: </tr>
1541: END
1542: }
1543: $r->print('</table><br>');
1544: $r->print(<<"END");
1545: </p><p>
1546: <input type="button" value="check all" onclick="javascript:checkAll(document.studentform.droplist)">
1547: <input type="button" value="uncheck all" onclick="javascript:uncheckAll(document.studentform.droplist)">
1548: <p><input type=submit value="Drop Students"></p>
1549: END
1550: return;
1551: }
1552:
1553: #
1554: # Print out the initial form to get the courselist file
1555: #
1556: sub print_first_courselist_upload_form {
1557: my $r=shift;
1558: my $str;
1559: $str = '<input type="hidden" name="phase" value="two">';
1560: $str .= '<input type="hidden" name="action" value="upload" />';
1561: $str .= '<input type="hidden" name="state" value="got_file" />';
1562: $str .= "<h3>".&mt('Upload a class list')."</h3>\n";
1563: $str .= &Apache::loncommon::upfile_select_html();
1564: $str .= "<p>\n";
1565: $str .= '<input type="submit" name="fileupload" value="'.
1566: &mt('Upload class list').'">'."\n";
1567: $str .= '<input type="checkbox" name="noFirstLine" /> '.
1568: &mt('Ignore First Line')."</p>\n";
1569: $str .= &Apache::loncommon::help_open_topic("Course_Create_Class_List",
1570: "How do I create a class list from a spreadsheet").
1571: "<br />\n";
1572: $str .= &Apache::loncommon::help_open_topic("Course_Convert_To_CSV",
1573: "How do I create a CSV file from a spreadsheet").
1574: "<br />\n";
1575: $str .= "</body>\n</html>\n";
1576: $r->print($str);
1577: return;
1578: }
1579:
1580: # ================================================= Drop/Add from uploaded file
1581: sub upfile_drop_add {
1582: my $r=shift;
1583: &Apache::loncommon::load_tmp_file($r);
1584: my @studentdata=&Apache::loncommon::upfile_record_sep();
1585: if($ENV{'form.noFirstLine'}){shift(@studentdata);}
1586: my @keyfields = split(/\,/,$ENV{'form.keyfields'});
1587: my $cid = $ENV{'request.course.id'};
1588: my %fields=();
1589: for (my $i=0; $i<=$ENV{'form.nfields'}; $i++) {
1590: if ($ENV{'form.upfile_associate'} eq 'reverse') {
1591: if ($ENV{'form.f'.$i} ne 'none') {
1592: $fields{$keyfields[$i]}=$ENV{'form.f'.$i};
1593: }
1594: } else {
1595: $fields{$ENV{'form.f'.$i}}=$keyfields[$i];
1596: }
1597: }
1598: #
1599: my ($startdate,$enddate) = &get_dates_from_form();
1600: if ($ENV{'form.makedatesdefault'}) {
1601: $r->print(&make_dates_default($startdate,$enddate));
1602: }
1603: # Determine domain and desired host (home server)
1604: my $domain=$ENV{'form.lcdomain'};
1605: my $desiredhost = $ENV{'form.lcserver'};
1606: if (lc($desiredhost) eq 'default') {
1607: $desiredhost = undef;
1608: } else {
1609: my %home_servers = &Apache::loncommon::get_library_servers($domain);
1610: if (! exists($home_servers{$desiredhost})) {
1611: $r->print('<font color="#ff0000">'.&mt('Error').'</font>'.
1612: &mt('Invalid home server specified'));
1613: $r->print("</body>\n</html>\n");
1614: return;
1615: }
1616: }
1617: # Determine authentication mechanism
1618: my $amode = '';
1619: my $genpwd = '';
1620: if ($ENV{'form.login'} eq 'krb') {
1621: $amode='krb';
1622: $amode.=$ENV{'form.krbver'};
1623: $genpwd=$ENV{'form.krbarg'};
1624: } elsif ($ENV{'form.login'} eq 'int') {
1625: $amode='internal';
1626: if ((defined($ENV{'form.intarg'})) && ($ENV{'form.intarg'})) {
1627: $genpwd=$ENV{'form.intarg'};
1628: }
1629: } elsif ($ENV{'form.login'} eq 'loc') {
1630: $amode='localauth';
1631: if ((defined($ENV{'form.locarg'})) && ($ENV{'form.locarg'})) {
1632: $genpwd=$ENV{'form.locarg'};
1633: }
1634: }
1635: if ($amode =~ /^krb/) {
1636: if (! defined($genpwd) || $genpwd eq '') {
1637: $r->print('<font color="red" size="+1">'.
1638: &mt('Unable to enroll students').'</font> '.
1639: &mt('No Kerberos domain was specified.').'</p>');
1640: $amode = ''; # This causes the loop below to be skipped
1641: }
1642: }
1643: unless (($domain=~/\W/) || ($amode eq '')) {
1644: #######################################
1645: ## Enroll Students ##
1646: #######################################
1647: $r->print('<h3>'.&mt('Enrolling Students')."</h3>\n<p>\n");
1648: my $count=0;
1649: my $flushc=0;
1650: my %student=();
1651: # Get new classlist
1652: foreach (@studentdata) {
1653: my %entries=&Apache::loncommon::record_sep($_);
1654: # Determine student name
1655: unless (($entries{$fields{'username'}} eq '') ||
1656: (!defined($entries{$fields{'username'}}))) {
1657: my ($fname, $mname, $lname,$gen) = ('','','','');
1658: if (defined($fields{'names'})) {
1659: ($lname,$fname,$mname)=($entries{$fields{'names'}}=~
1660: /([^\,]+)\,\s*(\w+)\s*(.*)$/);
1661: } else {
1662: if (defined($fields{'fname'})) {
1663: $fname=$entries{$fields{'fname'}};
1664: }
1665: if (defined($fields{'mname'})) {
1666: $mname=$entries{$fields{'mname'}};
1667: }
1668: if (defined($fields{'lname'})) {
1669: $lname=$entries{$fields{'lname'}};
1670: }
1671: if (defined($fields{'gen'})) {
1672: $gen=$entries{$fields{'gen'}};
1673: }
1674: }
1675: if ($entries{$fields{'username'}}=~/\W/) {
1676: $r->print('<br />'.
1677: &mt('<b>[_1]</b>: Unacceptable username for user [_2] [_3] [_4] [_5]',
1678: $entries{$fields{'username'}},$fname,$mname,$lname,$gen).
1679: '</b>');
1680: } else {
1681: # determine section number
1682: my $sec='';
1683: my $username=$entries{$fields{'username'}};
1684: if (defined($fields{'sec'})) {
1685: if (defined($entries{$fields{'sec'}})) {
1686: $sec=$entries{$fields{'sec'}};
1687: }
1688: }
1689: # remove non alphanumeric values from section
1690: $sec =~ s/\W//g;
1691: # determine student id number
1692: my $id='';
1693: if (defined($fields{'id'})) {
1694: if (defined($entries{$fields{'id'}})) {
1695: $id=$entries{$fields{'id'}};
1696: }
1697: $id=~tr/A-Z/a-z/;
1698: }
1699: # determine email address
1700: my $email='';
1701: if (defined($fields{'email'})) {
1702: if (defined($entries{$fields{'email'}})) {
1703: $email=$entries{$fields{'email'}};
1704: unless ($email=~/^[^\@]+\@[^\@]+$/) { $email=''; }
1705: }
1706: }
1707: # determine student password
1708: my $password='';
1709: if ($genpwd) {
1710: $password=$genpwd;
1711: } else {
1712: if (defined($fields{'ipwd'})) {
1713: if ($entries{$fields{'ipwd'}}) {
1714: $password=$entries{$fields{'ipwd'}};
1715: }
1716: }
1717: }
1718: # Clean up whitespace
1719: foreach (\$domain,\$username,\$id,\$fname,\$mname,
1720: \$lname,\$gen,\$sec) {
1721: $$_ =~ s/(\s+$|^\s+)//g;
1722: }
1723: if ($password || $ENV{'form.login'} eq 'loc') {
1724: &modifystudent($domain,$username,$cid,$sec,
1725: $desiredhost);
1726: my $reply=&Apache::lonnet::modifystudent
1727: ($domain,$username,$id,$amode,$password,
1728: $fname,$mname,$lname,$gen,$sec,$enddate,
1729: $startdate,$ENV{'form.forceid'},$desiredhost,
1730: $email);
1731: if ($reply ne 'ok') {
1732: $reply =~ s/^error://;
1733: $r->print('<br />'.
1734: &mt('<b>[_1]</b>: Unable to enroll: [_2]',$username,$reply));
1735: } else {
1736: $count++; $flushc++;
1737: $student{$username}=1;
1738: $r->print('. ');
1739: if ($flushc>15) {
1740: $r->rflush;
1741: $flushc=0;
1742: }
1743: }
1744: } else {
1745: $r->print('<br />'.
1746: &mt('<b>[_1]</b>: Unable to enroll. No password specified.',$username)
1747: );
1748: }
1749: }
1750: }
1751: } # end of foreach (@studentdata)
1752: $r->print("</p>\n<p>\n".&mt('Processed [_1] student(s).',$count).
1753: "</p>\n");
1754: $r->print("<p>\n".
1755: &mt('If active, the new role will be available when the '.
1756: 'students next log in to LON-CAPA.')."</p>\n");
1757: #####################################
1758: # Drop students #
1759: #####################################
1760: if ($ENV{'form.fullup'} eq 'yes') {
1761: $r->print('<h3>'.&mt('Dropping Students')."</h3>\n");
1762: # Get current classlist
1763: my ($classlist,$keylist)=&Apache::loncoursedata::get_classlist();
1764: if (! defined($classlist)) {
1765: $r->print(&mt('There are no students currently enrolled.').
1766: "\n");
1767: } else {
1768: # Remove the students we just added from the list of students.
1769: foreach (@studentdata) {
1770: my %entries=&Apache::loncommon::record_sep($_);
1771: unless (($entries{$fields{'username'}} eq '') ||
1772: (!defined($entries{$fields{'username'}}))) {
1773: delete($classlist->{$entries{$fields{'username'}}.
1774: ':'.$domain});
1775: }
1776: }
1777: # Print out list of dropped students.
1778: &show_drop_list($r,$classlist,$keylist,'nosort');
1779: }
1780: }
1781: } # end of unless
1782: }
1783:
1784: # ================================================================== Phase four
1785: sub drop_student_list {
1786: my $r=shift;
1787: my $count=0;
1788: my @droplist;
1789: if (ref($ENV{'form.droplist'})) {
1790: @droplist = @{$ENV{'form.droplist'}};
1791: } else {
1792: @droplist = ($ENV{'form.droplist'});
1793: }
1794: foreach (@droplist) {
1795: my ($uname,$udom)=split(/\:/,$_);
1796: # drop student
1797: my $result = &modifystudent($udom,$uname,$ENV{'request.course.id'});
1798: if ($result eq 'ok' || $result eq 'ok:') {
1799: $r->print(&mt('Dropped [_1]',$uname.'@'.$udom).'<br>');
1800: $count++;
1801: } else {
1802: $r->print(
1803: &mt('Error dropping [_1]:[_2]',$uname.'@'.$udom,$result).
1804: '<br />');
1805: }
1806: }
1807: $r->print('<p><b>'.&mt('Dropped [_1] student(s).',$count).'</b></p>');
1808: $r->print('<p>'.&mt('Re-enrollment will re-activate data.')) if ($count);
1809: }
1810:
1811: ###################################################################
1812: ###################################################################
1813:
1814: =pod
1815:
1816: =item &handler
1817:
1818: The typical handler you see in all these modules. Takes $r, the
1819: http request, as an argument.
1820:
1821: The response to the request is governed by two form variables
1822:
1823: form.action form.state response
1824: ---------------------------------------------------
1825: undefined undefined print main menu
1826: upload undefined print courselist upload menu
1827: upload got_file deal with uploaded file,
1828: print the upload managing menu
1829: upload enrolling enroll students based on upload
1830: drop undefined print the classlist ready to drop
1831: drop done drop the selected students
1832: enrollstudent undefined print student username domain form
1833: enrollstudent gotusername print single student enroll menu
1834: enrollstudent enrolling enroll student
1835: classlist undefined print html classlist
1836: classlist csv print csv classlist
1837: modifystudent undefined print classlist to select student to modify
1838: modifystudent selected print modify student menu
1839: modifystudent done make modifications to student record
1840:
1841: =cut
1842:
1843: ###################################################################
1844: ###################################################################
1845: sub handler {
1846: my $r=shift;
1847: if ($r->header_only) {
1848: &Apache::loncommon::content_type($r,'text/html');
1849: $r->send_http_header;
1850: return OK;
1851: }
1852: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
1853: ['action','state']);
1854: # Needs to be in a course
1855: if (! (($ENV{'request.course.fn'}) &&
1856: (&Apache::lonnet::allowed('cst',$ENV{'request.course.id'})))) {
1857: # Not in a course, or not allowed to modify parms
1858: $ENV{'user.error.msg'}=
1859: "/adm/dropadd:cst:0:0:Cannot drop or add students";
1860: return HTTP_NOT_ACCEPTABLE;
1861: }
1862: #
1863: # Only output the header information if they did not request csv format
1864: #
1865: if (exists($ENV{'form.state'}) && ($ENV{'form.state'} eq 'csv')) {
1866: $r->content_type('text/csv');
1867: } else {
1868: # Start page
1869: &Apache::loncommon::content_type($r,'text/html');
1870: $r->send_http_header;
1871: $r->print(&header());
1872: }
1873: #
1874: # Main switch on form.action and form.state, as appropriate
1875: if (! exists($ENV{'form.action'})) {
1876: &print_main_menu($r);
1877: } elsif ($ENV{'form.action'} eq 'upload') {
1878: if (! exists($ENV{'form.state'})) {
1879: &print_first_courselist_upload_form($r);
1880: } elsif ($ENV{'form.state'} eq 'got_file') {
1881: &print_upload_manager_form($r);
1882: } elsif ($ENV{'form.state'} eq 'enrolling') {
1883: if ($ENV{'form.datatoken'}) {
1884: &upfile_drop_add($r);
1885: } else {
1886: # Hmmm, this is an error
1887: }
1888: } else {
1889: &print_first_courselist_upload_form($r);
1890: }
1891: } elsif ($ENV{'form.action'} eq 'drop') {
1892: if (! exists($ENV{'form.state'})) {
1893: &print_drop_menu($r);
1894: } elsif ($ENV{'form.state'} eq 'done') {
1895: &drop_student_list($r);
1896: } else {
1897: &print_drop_menu($r);
1898: }
1899: } elsif ($ENV{'form.action'} eq 'enrollstudent') {
1900: if (! exists($ENV{'form.state'})) {
1901: &get_student_username_domain_form($r);
1902: } elsif ($ENV{'form.state'} eq 'gotusername') {
1903: &print_enroll_single_student_form($r);
1904: } elsif ($ENV{'form.state'} eq 'enrolling') {
1905: &enroll_single_student($r);
1906: } else {
1907: &get_student_username_domain_form($r);
1908: }
1909: } elsif ($ENV{'form.action'} eq 'classlist') {
1910: if (! exists($ENV{'form.state'})) {
1911: &print_html_classlist($r);
1912: } elsif ($ENV{'form.state'} eq 'csv') {
1913: &print_formatted_classlist($r,'csv');
1914: } elsif ($ENV{'form.state'} eq 'excel') {
1915: &print_formatted_classlist($r,'excel');
1916: } else {
1917: &print_html_classlist($r);
1918: }
1919: } elsif ($ENV{'form.action'} eq 'modifystudent') {
1920: if (! exists($ENV{'form.state'})) {
1921: &print_html_classlist($r);
1922: } elsif ($ENV{'form.state'} eq 'selected') {
1923: &print_modify_student_form($r);
1924: } elsif ($ENV{'form.state'} eq 'done') {
1925: &modify_single_student($r);
1926: } else {
1927: &print_html_classlist($r);
1928: }
1929: } else {
1930: # We should not end up here, but I guess it is possible
1931: &Apache::lonnet::logthis("Undetermined state in londropadd.pm. ".
1932: "form.action = ".$ENV{'form.action'}.
1933: "Someone should fix this.");
1934: &print_main_menu($r);
1935: }
1936: #
1937: # Finish up
1938: if (exists($ENV{'form.state'}) && ($ENV{'form.state'} eq 'csv')) {
1939: $r->print("\n");
1940: } else {
1941: $r->print('</form></body></html>');
1942: }
1943: return OK;
1944: }
1945:
1946: ###################################################################
1947: ###################################################################
1948:
1949: 1;
1950: __END__
1951:
1952:
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