File:
[LON-CAPA] /
loncom /
interface /
selfenroll.pm
Revision
1.13:
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Thu Jul 17 20:08:17 2008 UTC (15 years, 9 months ago) by
raeburn
Branches:
MAIN
CVS tags:
version_2_6_99_1,
HEAD
- lonnet::userenvironment() takes items to be retrieved (last arg) as an array, not a ref to an array.
- institutional status types allowed to self-enroll stored in an escape form, need to unescape before
creating string to display which types are permitted to self-enroll.
1: # The LearningOnline Network
2: # Allow users to self-enroll in a course
3: #
4: # $Id: selfenroll.pm,v 1.13 2008/07/17 20:08:17 raeburn 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: #
29: package Apache::selfenroll;
30:
31: use strict;
32: use Apache::Constants qw(:common);
33: use Apache::lonnet;
34: use Apache::loncommon;
35: use Apache::lonlocal;
36: use Apache::createaccount;
37: use LONCAPA qw(:DEFAULT :match);
38:
39: sub handler {
40: my $r = shift;
41: &Apache::loncommon::content_type($r,'text/html');
42: $r->send_http_header;
43: if ($r->header_only) {
44: return OK;
45: }
46: my $handle = &Apache::lonnet::check_for_valid_session($r);
47: my $lonidsdir=$r->dir_config('lonIDsDir');
48: my $lonhost = $r->dir_config('lonHostID');
49: if ($handle ne '') {
50: &Apache::lonnet::transfer_profile_to_env($lonidsdir,$handle);
51: }
52: &Apache::lonacc::get_posted_cgi($r);
53: &Apache::lonlocal::get_language_handle($r);
54: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},['courseid']);
55: my $js = &Apache::createaccount::catreturn_js();
56: my $desc;
57: my ($coursechk,$courseid) = &validate_course_id($env{'form.courseid'});
58: if ($coursechk ne 'ok') {
59: &page_header($r,$courseid,$js);
60: $r->print('<h3>'.&mt('Self-enrollment error').'</h3>'.
61: '<span class="LC_error">'.
62: &mt('Invalid domain or course number').'</span>');
63: &page_footer($r);
64: return OK;
65: }
66: my $now = time;
67: if ($env{'form.phase'} eq 'login') {
68: $js .= "\n".&Apache::createaccount::javascript_setforms($now);
69: }
70: my %coursehash = &Apache::lonnet::coursedescription($courseid);
71: my $cdom = $coursehash{'domain'};
72: my $cnum = $coursehash{'num'};
73: my $desc = $coursehash{'description'};
74: &page_header($r,$courseid,$js,$desc);
75: my $include = $r->dir_config('lonIncludes');
76: if ($env{'form.phase'} eq 'login') {
77: my $jsh=Apache::File->new($include."/londes.js");
78: $r->print(<$jsh>);
79: }
80: my ($canenroll,$selfenroll_types,$selfenroll_registered,@cancreate,
81: $knownuser,$selfenroll_access_start,$selfenroll_access_end,
82: $selfenroll_section,$selfenroll_future,%curr_role,$cdomdesc);
83: $selfenroll_types = $coursehash{'internal.selfenroll_types'};
84: $selfenroll_registered = $coursehash{'internal.selfenroll_registered'};
85: $selfenroll_section = $coursehash{'internal.selfenroll_section'};
86: $selfenroll_access_start = $coursehash{'internal.selfenroll_start_access'};
87: $selfenroll_access_end = $coursehash{'internal.selfenroll_end_access'};
88: if ($selfenroll_types ne '') {
89: my $start = $coursehash{'internal.selfenroll_start_date'};
90: my $end = $coursehash{'internal.selfenroll_end_date'};
91: if (($start > 0 && $start < $now) && (($end == 0) || ($end > 0 && $end > $now))) {
92: $canenroll = 1;
93: } elsif (($end == 0) || ($end > 0 && $end > $now)) {
94: if ($start > $now) {
95: $selfenroll_future = &Apache::lonlocal::locallocaltime($start);
96: }
97: }
98: }
99: $knownuser = &user_is_known();
100: if (!$canenroll) {
101: $r->print('<h3>'.&mt('Self-enrollment unavailable').'</h3><span class="LC_warning">'.
102: &mt('Self-enrollment is not currently available for this course.').
103: '</span><br /><br />');
104: if ($selfenroll_types ne '') {
105: if ($selfenroll_future ne '') {
106: if ($selfenroll_types eq '*') {
107: $r->print(&mt('Self-enrollment will become available starting [_1], and will be available to all LON-CAPA users.',$selfenroll_future).'<br />');
108: } else {
109: my ($enrolltypes,$longtypes,$alldoms);
110: if ($knownuser) {
111: &get_selfenroll_filters($selfenroll_types,$env{'user.domain'});
112: my $domdesc = &Apache::lonnet::domain($env{'user.domain'},'description');
113: if (ref($enrolltypes) eq 'HASH') {
114: if (ref($enrolltypes->{$env{'user.domain'}}) eq 'ARRAY') {
115: if (grep(/^any$/,@{$enrolltypes->{$env{'user.domain'}}})) {
116: $r->print(&mt('Self-enrollment will become available starting [_1], and will be available to all LON-CAPA users at your institution ([_2]).',
117: $selfenroll_future,$domdesc).'<br />');
118:
119: } else {
120: if (&user_can_selfenroll($env{'user.domain'},
121: $env{'user.name'},
122: $enrolltypes->{$env{'user.domain'}})) {
123: $r->print(&mt('Self-enrollment will become available starting [_1]; please enroll at that time.',$selfenroll_future));
124: } else {
125: $r->print(&mt('Although self-enrollment will become available starting [_1], you are ineligible for enrollment.',$selfenroll_future).'<br />');
126: $r->print(&print_selfenroll_types($longtypes,$env{'user.domain'}));
127: }
128: }
129: }
130: }
131: } else {
132: $r->print(&mt('Self-enrollment will become available starting [_1].',
133: $selfenroll_future).'<br />');
134: $r->print(&print_selfenroll_types($longtypes));
135: }
136: }
137: }
138: }
139: }
140: if ($knownuser) {
141: foreach my $key (keys(%env)) {
142: if ($key =~ m-^user\.role\.st\./$cdom/$cnum/?(\w*)$-) {
143: my $sec = $1;
144: my ($start,$end) = split(/\./,$env{$key});
145: my $status = 'active';
146: if (($end) && ($end<=$now)) {
147: $status = 'previous';
148: }
149: if (($start) && ($now<$start)) {
150: $status = 'future';
151: }
152: if ($status eq 'active' || $status eq 'future') {
153: $curr_role{'status'} = $status;
154: $curr_role{'section'} = $sec;
155: if ($curr_role{'section'} eq '') {
156: $curr_role{'section'} = &mt('none');
157: }
158: $curr_role{'start'} = &Apache::lonlocal::locallocaltime($start);
159: $curr_role{'role'} = 'st./'.$cdom.'/'.$cnum;
160: if ($sec ne '') {
161: $curr_role{'role'} .= '/'.$sec;
162: }
163: }
164: }
165: }
166: }
167: if (!$canenroll) {
168: if (keys(%curr_role)) {
169: $r->print(&has_role(%curr_role));
170: }
171: &page_footer($r);
172: return OK;
173: }
174: @cancreate = &can_create($cdom);
175: my ($form,$login_path,$firsturl,$create_path,$sso_url,$missing_formitem);
176: $form = 'logmein';
177: $login_path = '/adm/login';
178: $firsturl= '/adm/selfenroll?courseid='.$courseid;
179: $create_path = '/adm/createaccount';
180: $sso_url = $r->dir_config('lonSSOReloginServer');
181: if ($sso_url eq '') {
182: $sso_url = $login_path;
183: }
184: $missing_formitem = &mt('The link to the requested page could not be followed.')."\\n".&mt('The placeholder for the courseID is absent.');
185: if ($knownuser) {
186: if (keys(%curr_role)) {
187: $r->print('<h3>'.&mt('Self-enrollment unavailable').'</h3>'.
188: '<span class="LC_warning">'.&has_role(%curr_role).'</span>');
189: &page_footer($r);
190: return OK;
191: }
192: &process_self_enroll($r,$cdom,$cnum,$selfenroll_types,$selfenroll_registered,
193: $selfenroll_access_start,$selfenroll_access_end,
194: $selfenroll_section,$now);
195: } elsif ($env{'form.phase'} eq 'login') {
196: my $submit_text = &mt('Log in');
197: $r->print('<h3>'.&mt('Log-in to LON-CAPA').'</h3>');
198: my $udom = &Apache::lonnet::default_login_domain();
199: $r->print(&Apache::createaccount::login_box($now,$lonhost,$courseid,
200: $submit_text,$udom,'selfenroll'));
201: $r->print(&mt('You will be able to self-enroll in the course you selected ([_1]) after you have successfully logged in.','<b>'.$desc.'</b>'));
202: &page_footer($r);
203: return OK;
204: } elsif (@cancreate > 0) {
205: $r->print(<<END);
206: <script type="text/javascript">
207: function setPath(formname,formaction,item,arg) {
208: var formidx = getFormByName(formname);
209: if (formidx > -1) {
210: if (formaction != '') {
211: document.forms[formidx].action = formaction;
212: }
213: var itemid = getIndexByName(formidx,'setting');
214: if (itemid > -1) {
215: document.forms[formidx].elements[itemid].name = item;
216: document.forms[formidx].elements[itemid].value = arg;
217: document.forms[formidx].submit();
218: } else {
219: alert("$missing_formitem");
220: }
221: }
222: return;
223: }
224:
225: </script>
226: END
227: $r->print('<h3>'.&mt('LON-CAPA account required').'</h3>'.
228: &mt('You need to be logged into LON-CAPA to self-enroll in a course.').'<ul><li>'.&mt('If you have an account in LON-CAPA, [_1]log-in[_2].','<a href="javascript:setPath('."'$form','','phase','login'".')">','</a>').'</li>');
229: if (@cancreate > 1) {
230: $r->print('<li>'.&mt('Otherwise:').'<br />');
231: my $count = 0;
232: foreach my $type ('sso','login','email') {
233: if (($count > 0) && ($count <@cancreate)) {
234: $r->print(' , '.&mt('or').'<br />');
235: }
236: if (grep(/^$type$/,@cancreate)) {
237: if ($type eq 'sso') {
238: $r->print(' '.&mt("if you have an institutional log-in, use your institution's [_1]single sign on page[_2] to log-in, then create an account",'<a href="javascript:setPath('."'$form','$sso_url','firsturl','$firsturl'".')">','</a>'));
239: } elsif ($type eq 'login') {
240: $r->print(' '.&mt('if you have an institutional login, [_1]create an account[_2]','<a href="javascript:setPath('."'$form','$create_path','context','selfenroll_create'".')">','</a>'));
241: } elsif ($type eq 'email') {
242: $r->print(' '.&mt('you can use an e-mail address to [_1]create an account[_2]','<a href="javascript:setPath('."'$form','$create_path','context','selfenroll_create'".')">','</a>'));
243: }
244: $count ++;
245: }
246: }
247: $r->print('.<br />');
248: } else {
249: if ($cancreate[0] eq 'login') {
250: $r->print('<li>'.&mt('Otherwise, if you have an institutional login, [_1]create an account[_2].','<a href="javascript:setPath('."'$form','$create_path','context','selfenroll_create'".')">','</a>'));
251: } elsif ($cancreate[0] eq 'email') {
252: $r->print('<li>'.&mt('Otherwise, you will use an e-mail address to [_1]create an account[_2].','<a href="javascript:setPath('."'$form','$create_path','context','selfenroll_create'".')">','</a>'));
253: } elsif ($cancreate[0] eq 'sso') {
254: $r->print('<li>'.&mt("Otherwise, use your institution's [_1]single sign on page[_2] to log-in, then create an account.",'<a href="javascript:setPath('."'$form','$sso_url','firsturl','$firsturl'".')">','</a>'));
255: }
256: }
257: if ($selfenroll_types eq '*') {
258: $r->print('<br />'.&mt('You will be able to self enroll in this course once the account has been created.').'</li></ul>');
259: } else {
260: $r->print('</li></ul>');
261: my ($enrolltypes,$longtypes,$alldoms) =
262: &get_selfenroll_filters($selfenroll_types);
263: $r->print(&print_selfenroll_types($longtypes));
264: }
265: } else {
266: my $cdomdesc = &Apache::lonnet::domain($cdom,'description');
267: $r->print('<h3>'.&mt('LON-CAPA account required').'</h3>');
268: $r->print(&mt('You must [_1]log-in[_2] to LON-CAPA with an existing account to be able to enroll in this course, as account creation at this institution ([_3]) is not permitted when self-enrolling.','<a href="'.$login_path.'">','</a>',$cdomdesc));
269: if ($selfenroll_types ne '*') {
270: my ($enrolltypes,$longtypes,$alldoms) =
271: &get_selfenroll_filters($selfenroll_types);
272: $r->print('<br />'.&print_selfenroll_types($longtypes));
273: }
274: my $displayurl = &escape($firsturl);
275: $r->print(&mt('Submit a request to the LON-CAPA [_1]helpdesk[_2] for [_3] if you require assistance.','<a href="/adm/helpdesk?origurl='.$displayurl.'">','</a>',$cdomdesc));
276: }
277: $r->print("\n".'<form name="'.$form.'" method="post" action="">'."\n".
278: '<input type="hidden" name="courseid" value="'.$courseid.'" />'."\n".
279: '<input type="hidden" name="setting" value=""/>'."\n".
280: &Apache::lonhtmlcommon::echo_form_input(['backto','courseid','context','phase'])."\n".
281: '</form>'."\n");
282: &page_footer($r);
283: return OK;
284: }
285:
286: sub page_header {
287: my ($r,$courseid,$js,$desc) = @_;
288: my $start_page =
289: &Apache::loncommon::start_page('Self-enroll in a LON-CAPA course',$js,
290: {'no_inline_link' => 1,});
291: $r->print($start_page);
292: &Apache::lonhtmlcommon::clear_breadcrumbs();
293: &Apache::createaccount::selfenroll_crumbs($r,$courseid,$desc);
294: $r->print(&Apache::lonhtmlcommon::breadcrumbs('Self-enroll in course'));
295: return;
296: }
297:
298: sub page_footer {
299: my ($r) = @_;
300: $r->print('<form name="backupcrumbs" method="post" action="/adm/coursecatalog">'."\n".
301: &Apache::lonhtmlcommon::echo_form_input(['backto','courseid','phase','context']).
302: '</form>'.&Apache::loncommon::end_page());
303: return;
304: }
305:
306: sub validate_course_id {
307: my ($courseid) = @_;
308: my ($cdom,$cnum) = ($env{'form.courseid'} =~ /^($match_domain)_($match_courseid)$/);
309: if ($cdom ne '' && $cnum ne '') {
310: if (&Apache::lonnet::is_course($cdom,$cnum)) {
311: return ('ok',$courseid);
312: }
313: }
314: return;
315: }
316:
317: sub user_is_known {
318: my $known = 0;
319: if ($env{'user.name'} ne '' && $env{'user.name'} ne 'public'
320: && $env{'user.domain'} ne '' && $env{'user.domain'} ne 'public') {
321: $known = 1;
322: }
323: return $known;
324: }
325:
326: sub can_create {
327: my ($cdom) = @_;
328: my @cancreate;
329: my %domconfig = &Apache::lonnet::get_dom('configuration',['usercreation'],$cdom);
330: if (ref($domconfig{'usercreation'}) eq 'HASH') {
331: if (ref($domconfig{'usercreation'}{'cancreate'}) eq 'HASH') {
332: if ($domconfig{'usercreation'}{'cancreate'}{'selfcreate'} ne 'none') {
333: if (ref($domconfig{'usercreation'}{'cancreate'}{'selfcreate'}) eq 'ARRAY') {
334: @cancreate = @{$domconfig{'usercreation'}{'cancreate'}{'selfcreate'}};
335: } else {
336: if (($domconfig{'usercreation'}{'cancreate'}{'selfcreate'} ne 'none') &&
337: ($domconfig{'usercreation'}{'cancreate'}{'selfcreate'} ne '')) {
338: @cancreate = ($domconfig{'usercreation'}{'cancreate'}{'selfcreate'});
339: }
340: }
341: }
342: }
343: }
344: return @cancreate;
345: }
346:
347: sub has_role {
348: my (%curr_role) = @_;
349: my $output;
350: if ($curr_role{'status'} eq 'active') {
351: my $rolelink = &jump_to_role($curr_role{'role'});
352: $output = &mt('You already have an active student role (section: "[_1]") in this course.',$curr_role{'section'}).'<br>'.$rolelink;
353: } elsif ($curr_role{'status'} eq 'future') {
354: $output = &mt('You have a student role (section: "[_1]") in this course which will become active [_2].',$curr_role{'section'},$curr_role{'start'});
355: }
356: return $output;
357: }
358:
359: sub process_self_enroll {
360: my ($r,$cdom,$cnum,$selfenroll_types,$selfenroll_registered,
361: $selfenroll_access_start,$selfenroll_access_end,$selfenroll_section,$now) = @_;
362: my $udom = $env{'user.domain'};
363: my $uname = $env{'user.name'};
364: my $selfenroll = 0;
365: my ($enrolltypes,$longtypes,$alldoms);
366: if ($selfenroll_types eq '*') {
367: $selfenroll = 1;
368: } else {
369: ($enrolltypes,$longtypes,$alldoms) =
370: &get_selfenroll_filters($selfenroll_types,$udom);
371: if ($alldoms) {
372: $selfenroll = 1;
373: } elsif (ref($enrolltypes) eq 'HASH') {
374: if (ref($enrolltypes->{$udom}) eq 'ARRAY') {
375: if (grep(/^any$/,@{$enrolltypes->{$udom}})) {
376: $selfenroll = 1;
377: } else {
378: $selfenroll = &user_can_selfenroll($udom,$uname,$enrolltypes->{$udom});
379: }
380: }
381: }
382: }
383: if ($selfenroll) {
384: my $usec = $selfenroll_section;
385: if ($selfenroll_section eq 'none') {
386: $usec = '';
387: }
388: if ($selfenroll_registered) {
389: my ($registered,$instsec,$message) = &check_registered($cdom,$cnum);
390: $usec = $instsec;
391: if (!$registered) {
392: $r->print('<h3>'.&mt('Self-enrollment unavailable').'</h3>'.&mt('Self-enrollment is restricted to students officially registered for this course.').'<br />');
393: if ($message) {
394: $r->print($message);
395: } else {
396: $r->print(&mt('As you are not currently registered for this course, self-enrollment is unavailable.'));
397: }
398: return;
399: }
400: }
401: my $enrollresult =
402: &Apache::lonnet::modify_student_enrollment($udom,$uname,undef,undef,undef,
403: undef,undef,$usec,$selfenroll_access_end,$selfenroll_access_start,
404: 'manual',undef,$cdom.'_'.$cnum,$selfenroll);
405: if ($enrollresult eq 'ok') {
406: my (%userroles,%newrole,%newgroups);
407: my $role = 'st';
408: my $area = '/'.$cdom.'/'.$cnum;
409: my $spec = $role.'.'.$area;
410: if ($usec ne '') {
411: $spec .= '/'.$usec;
412: $area .= '/'.$usec;
413: }
414: &Apache::lonnet::standard_roleprivs(\%newrole,$role,$cdom,$spec,$cnum,
415: $area);
416: &Apache::lonnet::set_userprivs(\%userroles,\%newrole,%newgroups);
417: $userroles{'user.role.'.$spec} = $selfenroll_access_start.'.'.$selfenroll_access_end;
418: &Apache::lonnet::appenv(\%userroles,[$role,'cm']);
419: $r->print('<h3>'.&mt('Enrollment process complete').'</h3>');
420: if ($selfenroll_access_end && $selfenroll_access_end <= $now) {
421: $r->print(&mt('The end date for access to this course for users who self-enroll has passed.').'<br />'.&mt('Consequently, although a new role was created for you in the course, it is an inactive role which does not provide access to the course.'));
422: } else {
423: $r->print(&mt('Self-enrollment in this course was successful.').'<br />');
424: my $showstart = &Apache::lonlocal::locallocaltime($selfenroll_access_start);
425: my $showend = &Apache::lonlocal::locallocaltime($selfenroll_access_end);
426: if ($selfenroll_access_start && $selfenroll_access_start >$now) {
427: $r->print(&mt('The start date for access to this course for users who self-enroll has yet to be reached.').'<br />'.&mt('Consequently, although a new role was created for you in the course, you will not be able to select this role until [_1].',$showstart));
428: } else {
429: my $newrole = 'st./'.$cdom.'/'.$cnum;
430: if ($usec ne '') {
431: $newrole .= '/'.$usec;
432: }
433: my $rolelink = &jump_to_role($newrole);
434: $r->print(&mt('Your new role is available immediately, and will provide access to the course until [_1].',$showend).'<br /><br />'."\n".
435: $rolelink);
436: }
437: }
438: } else {
439: $r->print('<h3>'.&mt('Enrollment incomplete').'</h3>'.
440: &mt('Self-enrollment in this course failed.'));
441: if ($enrollresult ne '') {
442: $r->print('<span class="LC_error">'.$enrollresult.'</span>');
443: }
444: }
445: } else {
446: $r->print('<h3>'.&mt('Self-enrollment unavailable').'</h3>'.
447: &mt('You are not permitted to enroll yourself in this course.').'<br />');
448: $r->print(&print_selfenroll_types($longtypes));
449: }
450: return;
451: }
452:
453: sub user_can_selfenroll {
454: my ($udom,$uname,$domenrolltypes) = @_;
455: my $selfenroll = 0;
456: my %userhash = &Apache::lonnet::userenvironment($udom,$uname,'inststatus');
457: my @inststatuses;
458: if ($userhash{'inststatus'} eq '') {
459: push(@inststatuses,'other');
460: } else {
461: @inststatuses = split(':',$userhash{'inststatus'});
462: }
463: foreach my $type (@inststatuses) {
464: if (ref($domenrolltypes) eq 'ARRAY') {
465: if (grep(/^\Q$type\E$/,@{$domenrolltypes})) {
466: $selfenroll = 1;
467: last;
468: }
469: }
470: }
471: return $selfenroll;
472: }
473:
474: sub jump_to_role {
475: my ($role) = @_;
476: my $output = <<"END";
477: <script type="text/javascript">
478: function SelectRole() {
479: document.rolechoice.selectrole.value = '1';
480: document.rolechoice.submit();
481: }
482: </script>
483: END
484: $output .= '<a href="javascript:SelectRole()">'."\n".
485: &mt('Enter course now').'</a>'."\n".
486: '<form name="rolechoice" action="/adm/roles" method="post">'."\n".
487: '<input type="hidden" name="selectrole" value="" />'."\n".
488: '<input type="hidden" name="'.$role.'" value="1" />'."\n".
489: '</form>';
490: return $output;
491: }
492:
493: sub get_selfenroll_filters {
494: my ($selfenroll_types,$domain) = @_;
495: my (%enrolltypes,%longtypes,$alldoms);
496: my @selfenrolldoms = split(/;/,$selfenroll_types);
497: foreach my $item (@selfenrolldoms) {
498: my ($selfdom,$type_str) = split(/:/,$item);
499: if ($selfdom eq '*') {
500: $alldoms = 1;
501: last;
502: }
503: if ($domain ne '') {
504: next if ($selfdom ne $domain);
505: }
506: if ($selfdom =~ /^$match_domain$/) {
507: if (&Apache::lonnet::domain($selfdom) ne '') {
508: my @types = split(/,/,$type_str);
509: my @unesc_types = map { &unescape($_); } @types;
510: my ($othertitle,$usertypes,$types) =
511: &Apache::loncommon::sorted_inst_types($selfdom);
512: if (ref($usertypes) eq 'HASH') {
513: my $anytype = 1;
514: foreach my $key (keys(%{$usertypes})) {
515: if (!grep(/^\Q$key\E$/,@unesc_types)) {
516: $anytype = 0;
517: last;
518: }
519: }
520: if ($anytype) {
521: if (!(grep(/^other$/,@types))) {
522: $anytype = 0;
523: }
524: }
525: $usertypes->{'any'} = &mt('Any users');
526: $usertypes->{'other'} = &mt('Others');
527: my @showtypes;
528: if ($anytype) {
529: @{$enrolltypes{$selfdom}} = ('any');
530: @showtypes = ('any');
531: } else {
532: @{$enrolltypes{$selfdom}} = @types;
533: @showtypes = @unesc_types;
534: }
535: @{$longtypes{$selfdom}} =
536: map {$usertypes->{$_}} @showtypes;
537: }
538: }
539: }
540: }
541: return (\%enrolltypes,\%longtypes,$alldoms);
542: }
543:
544: sub print_selfenroll_types {
545: my ($longtypes,$domain) = @_;
546: my $output;
547: if (ref($longtypes) eq 'HASH') {
548: if ($domain ne '') {
549: my $domdesc = &Apache::lonnet::domain($domain,'description');
550: if (ref($longtypes->{$domain}) eq 'ARRAY') {
551: if (grep(/^any$/,@{$longtypes->{$domain}})) {
552: $output = &mt('Self-enrollment in this course is available to any user affiliated with [_1].',$domdesc);
553: } else {
554: my $status_str = join(', ',@{$longtypes->{$domain}});
555: $output = &mt('Self-enrollment in this course is only available to users affiliated with [_1] who have the following status: "[_2]".',$domdesc,$status_str);
556: }
557: } else {
558: $output = &mt('Self-enrollment is not currently available for this course for users affiliated with [_1].',$domdesc);
559: }
560: } elsif (keys(%{$longtypes}) > 0) {
561: $output = &mt('Self-enrollment in this course is only available to users affiliated with the following institutions, and who have the required status:').' <ul>'."\n";
562: foreach my $selfdom (sort(keys(%{$longtypes}))) {
563: my $selfdomdesc = &Apache::lonnet::domain($selfdom,'description');
564: if (ref($longtypes->{$selfdom}) eq 'ARRAY') {
565: $output .= '<li>'.$selfdomdesc.': '.join(', ',@{$longtypes->{$selfdom}}).'</li>'."\n";
566: }
567: }
568: $output .= '</ul>'."\n";
569: } else {
570: $output = &mt('Self-enrollment is not currently available for this course.');
571: }
572: }
573: return $output;
574: }
575:
576: sub check_registered {
577: my ($cdom,$cnum) = @_;
578: my ($registered,$instsec,$message);
579: my %settings = &Apache::lonnet::get('environment',['internal.coursecode',
580: 'internal.sectionnums',
581: 'internal.crosslistings'],$cdom,$cnum);
582: my (@allcourses,%LC_code,%affiliates,%reply);
583: &Apache::loncommon::get_institutional_codes(\%settings,\@allcourses,\%LC_code);
584: if (@allcourses > 0) {
585: @{$affiliates{$cnum}} = @allcourses;
586: my $outcome = &Apache::lonnet::fetch_enrollment_query('updatenow',\%affiliates,\%reply,$cdom,$cnum);
587: if ($outcome eq 'ok') {
588: if ($reply{$cnum} > 0) {
589: foreach my $class (@allcourses) {
590: my %enrolled;
591: my $dir = $Apache::lonnet::perlvar{'lonDaemons'};
592: my %place = &LONCAPA::Enrollment::place_hash();
593: &LONCAPA::Enrollment::parse_classlist($dir,$cdom,$cnum,$class,
594: \%place,$LC_code{$class},\%enrolled);
595: if (defined($enrolled{$env{'user.name'}})) {
596: $registered = 1;
597: $instsec = $LC_code{$class};
598: last;
599: }
600: }
601: } else {
602: $message = &mt('Your registration status could not be verified.');
603: }
604: } else {
605: $message = &mt('Your registration status could not determined, because a problem occurred retrieving data.');
606: }
607: } else {
608: $message = &mt('As no institutional course sections are currently associated with this course, your registration status is undetermined.');
609: }
610: return ($registered,$instsec,$message);
611: }
612:
613: 1;
614:
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