1: # The LearningOnline Network
2: # Syllabus
3: #
4: # $Id: lonsyllabus.pm,v 1.106.2.2 2010/02/15 16:05:32 faziophi 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::lonsyllabus;
30:
31: use strict;
32: use Apache::lontemplate;
33: use Apache::Constants qw(:common);
34: use Apache::loncommon;
35: use Apache::lonnet;
36: use Apache::lontexconvert;
37: use Apache::lonfeedback;
38: use Apache::lonannounce;
39: use Apache::lonlocal;
40: use Apache::lonhtmlcommon;
41: use Apache::lonspeller();
42: use HTML::Entities();
43: use Digest::MD5 qw(md5_hex);
44: use Storable qw(freeze thaw);
45:
46: # These are strings representing types of fields
47: # that will used to parse/display a field correctly
48: use constant {
49: TYPE_TEXT_HTML => 'html', #<-- default
50: TYPE_TEXT_PLAIN => 'text',
51: TYPE_URL_INCLUDE => 'include-url',
52: };
53:
54: sub handler {
55: my $r = shift;
56: &Apache::loncommon::content_type($r,'text/html');
57: $r->send_http_header;
58: return OK if $r->header_only;
59:
60: my $target=$env{'form.grade_target'};
61: # --------------------------------------------------- Get course info from URL
62: my (undef,undef,$cdom,$cnum)=split(/\//,$r->uri);
63: # ------------------------------------------------------------ Get query string
64: &Apache::loncommon::get_unprocessed_cgi
65: ($ENV{'QUERY_STRING'},['delete', 'rename', 'field', 'forcestudent','register','forceedit','forceflush','wrapperdisplay']);
66: # ----------------------------------------------------- Is this even a course?
67: my $homeserver=&Apache::lonnet::homeserver($cnum,$cdom);
68: if ($homeserver eq 'no_host') {
69: &Apache::loncommon::content_type($r,'text/html');
70: $r->send_http_header;
71: &Apache::loncommon::simple_error_page($r,'No syllabus available',
72: 'No syllabus available');
73: return OK;
74: }
75: # ------------------------------------- There is such a course, get environment
76: my %courseenv=&Apache::lonnet::dump('environment',$cdom,$cnum);
77:
78: # ------------------------------------------------------------ Print the screen
79: if ($target eq 'tex') {
80: $r->print(&Apache::lonprintout::print_latex_header($env{'form.latex_type'}));
81: }
82:
83: # -------------------------------------------------- Let's see who handles this
84: my $externalsyllabus=$courseenv{'externalsyllabus'};
85: if ($externalsyllabus=~/\w/) {
86: if ($env{'form.wrapperdisplay'} eq 'menu') {
87: $r->print(&Apache::lonwrapper::simple_menu());
88: } else {
89: $r->print(&Apache::lonwrapper::wrapper("/public/$cdom/$cnum/syllabus?wrapperdisplay=menu",
90: $externalsyllabus));
91: }
92: return OK;
93: }
94:
95: # --------------------------------------------------------- The old syllabus fields
96: my %syllabusfields=&Apache::lonlocal::texthash(
97: 'aaa_instructorinfo' => 'Instructor Information',
98: 'bbb_description' => 'Course Description',
99: 'ccc_prereq' => 'Prerequisites',
100: 'cdc_classhours' => 'Class Hours',
101: 'ddd_officehours' => 'Office Hours',
102: 'eee_helproom' => 'Helproom Hours',
103: 'efe_projectinfo' => 'Project Information',
104: 'fff_examinfo' => 'Exam Information',
105: 'fgf_deadlines' => 'Deadlines',
106: 'ggg_grading' => 'Grading Information',
107: 'hhh_readings' => 'Readings',
108: 'iii_coursepack' => 'Coursepack',
109: 'jjj_weblinks' => 'Web Links',
110: 'kkk_textbook' => 'Textbook',
111: 'lll_includeurl' => 'URLs To Include in Syllabus');
112:
113: # --------------------------------------------------------------- Force Student
114: my $forcestudent='';
115: if ($env{'form.forcestudent'}) { $forcestudent='student'; };
116: my $forceedit='';
117: if ($env{'form.forceedit'}) { $forceedit='edit'; }
118:
119: # ----------------------------------------------------------------- Make header
120: if ($target ne 'tex') {
121: my $rss_link = &Apache::lonrss::rss_link($cnum,$cdom);
122: my $js;
123: if ($env{'form.backto'} eq 'coursecatalog') {
124: $js .= <<"ENDSCRIPT";
125:
126: <script type="text/javascript">
127: function ToCatalog(caller) {
128: numidx = getIndexByName('coursenum');
129: if (numidx > -1) {
130: if (caller != 'details') {
131: document.backtocat.elements[numidx].value = '';
132: }
133: }
134: document.backtocat.submit();
135: }
136:
137: function getIndexByName(item) {
138: for (var i=0;i<document.backtocat.elements.length;i++) {
139: if (document.backtocat.elements[i].name == item) {
140: return i;
141: }
142: }
143: return -1;
144: }
145:
146: </script>
147:
148: ENDSCRIPT
149: }
150: my $start_page =
151: &Apache::loncommon::start_page("Syllabus", $rss_link.$js,
152: {'function' => undef,
153: 'domain' => $cdom,
154: 'force_register' =>
155: $env{'form.register'},});
156:
157: $r->print($start_page);
158: if ($env{'form.backto'} eq 'coursecatalog') {
159: &Apache::lonhtmlcommon::clear_breadcrumbs();
160: &Apache::lonhtmlcommon::add_breadcrumb
161: ({href=>"javascript:ToCatalog()",
162: text=>"Course/Community Catalog"});
163: if ($env{'form.coursenum'} ne '') {
164: &Apache::lonhtmlcommon::add_breadcrumb
165: ({href=>"javascript:ToCatalog('details')",
166: text=>"Course details"});
167: }
168: &Apache::lonhtmlcommon::add_breadcrumb
169: ({href=>$r->uri,
170: text=>"Course syllabus"});
171: $r->print(&Apache::lonhtmlcommon::breadcrumbs());
172: }
173: }
174: # ---------------------------------------------------------- Load syllabus info
175: my %syllabus=&Apache::lonnet::dump('syllabus',$cdom,$cnum); # load db
176: my $allowed=0; # can we edit this page?
177: my $privileged=0;
178: my %data;
179: if ($env{'form.forceflush'}) {
180: delete $syllabus{'data.fields'};
181: &Apache::lonnet::del('syllabus', ['data.fields'], $cdom, $cnum);
182: delete $syllabus{'properties.v2_conflict'};
183: &Apache::lonnet::del('syllabus', ['properties.v2_conflict'], $cdom, $cnum);
184: delete $syllabus{'properties.v2_conflict_fail'};
185: &Apache::lonnet::del('syllabus', ['properties.v2_conflict_fail'], $cdom, $cnum);
186: delete $syllabus{'properties.last_modified'};
187: &Apache::lonnet::del('syllabus', ['properties.last_modified'], $cdom, $cnum);
188: delete $syllabus{'properties.v2_converted'};
189: &Apache::lonnet::del('syllabus', ['properties.v2_converted'], $cdom, $cnum);
190: delete $syllabus{'data.old_new_map'};
191: &Apache::lonnet::del('syllabus', ['data.old_new_map'], $cdom, $cnum);
192: delete $syllabus{'data.deleted_fields'};
193: &Apache::lonnet::del('syllabus', ['data.deleted_fields'], $cdom, $cnum);
194: %syllabus=&Apache::lonnet::dump('syllabus',$cdom,$cnum); # load db
195: $r->print("Flushed syllabus DB file.<br />");
196: $r->print("Syllabus conflict: ".$syllabus{'properties.v2_conflict'}."<br />");
197: }
198: $r->print("Existing fields: ".$syllabus{'data.fields'}."<br />");
199: $r->print("Old-new map: ".$syllabus{'data.old_new_map'}."<br />");
200: $r->print("Deleted fields: ".$syllabus{'data.deleted_fields'}."<br />");
201: if (!exists($syllabus{'data.fields'})) {
202: # convert existing 2.x data to new DB fields
203: # which become new primary data source for document
204: %data = %{convert_from_v2($r, \%syllabus, \%syllabusfields, 0)};
205: $r->print("New fields order: ".$data{'data.fields'}."<br />");
206: &Apache::lonnet::put('syllabus',\%data,$cdom,$cnum);
207: } elsif ( !exists($syllabus{'properties.v2_converted'}) &&
208: exists($syllabus{'uploaded.lastmodified'}) &&
209: exists($syllabus{'properties.last_modified'}) &&
210: ($syllabus{'uploaded.lastmodified'} !=
211: $syllabus{'properties.last_modified'})) {
212: # if the document has been saved in 3.x and later edited in
213: # 2.x, reconvert the existing document, with extra warning
214: %data = %{convert_from_v2($r, \%syllabus, \%syllabusfields, 1)};
215: delete $data{'properties.v2_converted'};
216: &Apache::lonnet::del('syllabus', ['properties.v2_converted'], $cdom, $cnum);
217: $data{'properties.v2_conflict'} = 1;
218: &Apache::lonnet::put('syllabus',\%data,$cdom,$cnum);
219: } else {
220: %data = %syllabus;
221:
222: }
223:
224: # ----------------------------------------------------- Only if not public call
225: if ($env{'user.environment'}) { # does this user have privileges to post, etc?
226: if ($env{'request.course.id'}
227: && $cdom eq $env{'course.'.$env{'request.course.id'}.'.domain'}
228: && $cnum eq $env{'course.'.$env{'request.course.id'}.'.num'}) {
229: $allowed=&Apache::lonnet::allowed('mdc',$env{'request.course.id'});
230: $privileged=$allowed;
231: if (($data{'uploaded.lastmodified'}) && (!$forceedit)) {
232: $forcestudent='student';
233: }
234: if ($forcestudent or $target eq 'tex') { $allowed=0; }
235: }
236: #store what the user typed in
237: my @fields = @{thaw($data{'data.fields'})};
238: if (($allowed) && ($env{'form.delete'})) {
239: my $field = $env{'form.delete'};
240: chomp($field);
241: #allow only numbers, underscores
242: $field=~s/[^0-9_]//g;
243: #check if the field exists
244: #do not delete if file in v2 conversion mode
245: if (exists($data{'data.field.'.$field}) &&
246: !exists($data{'properties.v2_converted'})) {
247: $r->print("Field '$field' can be deleted.<br />");
248: # linearly parse "data.fields" and remove it
249: for (my $i = 0; $i < length(@fields); $i++) {
250: if ($fields[$i] eq $field) {
251: splice(@fields, $i, 1);
252: $r->print("Removed entry $i from 'data.fields'<br />");
253: }
254: }
255: # if "data.deleted" does not exist, create it
256: my @deleted;
257: if (!exists($data{'data.deleted_fields'})) {
258: @deleted = [];
259: } else {
260: @deleted = @{thaw($data{'data.deleted_fields'})};
261: }
262: # only if deleted does not exist in 'data.deleted', push it
263: my $push = 1;
264: for (my $i = 0; $i < length(@deleted); $i++) {
265: if ($deleted[$i] eq $field) {
266: $push = 0;
267: last;
268: }
269: }
270: unless (!$push) {
271: push(@deleted, $field);
272: }
273: $data{'data.fields'} = freeze(\@fields);
274: $data{'data.deleted_fields'} = freeze(\@deleted);
275:
276: &Apache::lonnet::put('syllabus',\%data,$cdom,$cnum);
277: }
278: }
279: if (($allowed) && ($env{'form.rename'})) {
280: my $field = $env{'form.rename'};
281: my $new_title = "Hello, World!";
282: chomp($field);
283: $field=~s/[^0-9_]//g;
284: #check if the field exists
285: #do not delete if file in v2 conversion mode
286: if (exists($data{'data.field.'.$field}) &&
287: !exists($data{'properties.v2_converted'})) {
288: #sanitize HTML content
289: $r->print("Rename -- field found.<br />");
290: my %db_entry = %{thaw($data{'data.field.'.$field})};
291: $new_title = &Apache::lonfeedback::clear_out_html($new_title, 1);
292: $db_entry{title} = $new_title;
293: $data{'data.field.'.$field} = freeze(\%db_entry);
294: &Apache::lonnet::put('syllabus',\%data,$cdom,$cnum);
295: }
296: }
297: if (($allowed) && ($env{'form.storesyl'})) {
298: foreach my $syl_field (@fields) {
299: my $field=$env{'form.'.$syl_field};
300: my $type;
301: my %field_hash;
302: # only update a field if it already exists!
303: if (exists($data{'data.field.'.$syl_field})) {
304: $r->print("Creating/updated field ".$syl_field."<br />");
305: %field_hash = exists($data{'data.field.'.$syl_field}) ?
306: %{thaw($data{'data.field.'.$syl_field})} : ();
307: $type = exists($field_hash{type}) ? $field_hash{type} : TYPE_TEXT_HTML;
308: chomp($field);
309: $field=~s/\s+$//s;
310: $field=~s/^\s+//s;
311: $field=~s/\<br\s*\/*\>$//s;
312: $field=&Apache::lonfeedback::clear_out_html($field,1);
313: $field_hash{content}=$field;
314: if ($type eq TYPE_URL_INCLUDE) { # clean up included URLs
315: my $field='';
316: foreach my $value (split(/\n/,$field_hash{content})) {
317: my $url=$value;
318: # get rid of leading and trailing spaces
319: $url=~s/^\s+//;
320: $url=~s/\s+$//;
321: if ($url=~m|^https?\://([^/]+)/(.+)$|) {
322: my $host = $1;
323: my $remainder=$2;
324: # remove the hostname from internal URLs
325: my $hostname = &Apache::lonnet::hostname($host);
326: my %all_hostnames = &Apache::lonnet::all_hostnames();
327: foreach my $possible_host (keys(%all_hostnames)) {
328: if ($possible_host =~ /\Q$hostname\E/i) {
329: $url=$remainder;
330: }
331: }
332: }
333: # norm internal URLs
334: unless ($url=~/^https?\:/) {
335: $url=&Apache::lonnet::clutter($url);
336: }
337: # re-assemble field
338: if ($url) {
339: $field.=$url."\n";
340: }
341: }
342: $field_hash{content}=$field;
343: $field_hash{type}=TYPE_URL_INCLUDE;
344: }
345: $data{'data.field.'.$syl_field} = freeze(\%field_hash);
346: }
347: }
348: $data{'uploaded.domain'}=$env{'user.domain'};
349: $data{'uploaded.name'}=$env{'user.name'};
350: my $time = $^T;
351: $data{'uploaded.lastmodified'}=$time;
352: $data{'properties.last_modified'}=$time;
353: delete $data{'properties.v2_converted'};
354: delete $data{'properties.v2_conflict'};
355: delete $data{'properties.v2_conflict_fail'};
356: &Apache::lonnet::del('syllabus', ['properties.v2_converted',
357: 'properties.v2_conflict', 'properties.v2_conflict_fail'], $cdom, $cnum);
358:
359: #2.x compatibility: write to old fields with new mapped fields
360: my %old_new_map = %{thaw($data{'data.old_new_map'})};
361: foreach my $old_field (keys(%old_new_map)) {
362: $r->print("Looking for: ".$old_field." at ".$old_new_map{$old_field}."<br />");
363: if (exists($data{'data.field.'.$old_new_map{$old_field}})) {
364: $r->print("updating old field ".$old_field."<br />");
365: my %new_field = %{thaw($data{'data.field.'.$old_new_map{$old_field}})};
366: $data{$old_field} = $new_field{content};
367: }
368: }
369:
370: &Apache::lonnet::put('syllabus',\%data,$cdom,$cnum);
371: }
372: }
373:
374: #--------Functions
375: if( ($allowed || $privileged) && $target ne 'tex') {
376: my $functions=&Apache::lonhtmlcommon::start_funclist();
377: if ($allowed) {
378: #if you have the register flag, keep it
379: if($env{'form.register'} == 1) {
380: $functions.=&Apache::lonhtmlcommon::add_item_funclist(
381: '<a href="'.$r->uri.'?forcestudent=1&register=1">'
382: .&mt('Show Public View').'</a>'
383: .&Apache::loncommon::help_open_topic(
384: 'Uploaded_Templates_PublicView'));
385: } else {
386: $functions.=&Apache::lonhtmlcommon::add_item_funclist(
387: '<a href="'.$r->uri.'?forcestudent=1">'
388: .&mt('Show Public View').'</a>'
389: .&Apache::loncommon::help_open_topic(
390: 'Uploaded_Templates_PublicView'));
391: }
392: } elsif ($privileged) {
393: if($env{'form.register'} == 1) {
394: $functions.=&Apache::lonhtmlcommon::add_item_funclist(
395: '<a href="'.$r->uri.'?forceedit=1&register=1">'
396: .&mt('Edit').'</a>');
397: } else {
398: $functions.=&Apache::lonhtmlcommon::add_item_funclist(
399: '<a href="'.$r->uri.'?forceedit=1">'
400: .&mt('Edit').'</a>');
401: }
402: }
403:
404: $functions.=&Apache::lonhtmlcommon::end_funclist();
405: $r->print(&Apache::loncommon::head_subbox($functions));
406: }
407:
408: #---------------------Print External URL Syllabus Info and Help Text
409: if( ($allowed) && ($target ne 'tex') ) {
410: my $protocol = $Apache::lonnet::protocol{$homeserver};
411: $protocol = 'http' if ($protocol ne 'https');
412: $r->print('<p class="LC_info">'
413: .&mt('This syllabus can be publicly viewed at [_1]'
414: ,'<tt>'.$protocol.'://'.&Apache::lonnet::hostname($homeserver).$r->uri.'</tt>')
415: .' '.&Apache::loncommon::help_open_topic('Syllabus_ExtLink')
416: .'</p>'
417: .'<p class="LC_info">'
418: .&mt('Instead of using this template you can specify an external URL as Syllabus in the [_1]Course Configuration[_2].'
419: ,'<a href="/adm/courseprefs?actions=courseinfo&phase=display">','</a>')
420: .'</p>'
421: );
422: #-Print Help Text
423: $r->print(&Apache::loncommon::help_open_topic(
424: 'Uploaded_Templates_TextBoxes',
425: &mt('Help with filling in text boxes')));
426: }
427:
428: #----------Print last update
429: my $lastmod=$syllabus{'uploaded.lastmodified'};
430: $lastmod=($lastmod?&Apache::lonlocal::locallocaltime($lastmod):&mt('never'));
431: my $who = &Apache::loncommon::aboutmewrapper(
432: &Apache::loncommon::plainname($syllabus{'uploaded.name'},
433: $syllabus{'uploaded.domain'}),$syllabus{'uploaded.name'},
434: $syllabus{'uploaded.domain'});
435: if ($target ne 'tex') {
436: $r->print('<div class="LC_info">'.&mt('Last updated').': '.
437: $lastmod . ' '.
438: ($who ? &mt('by').' '.$who
439: : '' ) .
440: '</div>' );
441:
442: } else {
443: $r->print('\\\\ '.&mt('Last updated').': '.$lastmod.' '.
444: ($who? &mt('by').'\\\\ '.
445: &Apache::loncommon::plainname($syllabus{'uploaded.name'},$syllabus{'uploaded.domain'})
446: :'')
447: .'\\\\');
448: }
449: if ($allowed && $data{'properties.v2_converted'} == 1) {
450: $r->print("<em>This document was created with LON-CAPA 2.x. Modifying it may cause it to not display correctly on older servers.</em><br/>");
451: }
452: if ($allowed && $data{'properties.v2_conflict'} == 1) {
453: $r->print("<em>This document was saved with LON-CAPA 3.x, then further edited in LON-CAPA 2.x.</em><br/>");
454: if ($data{'properties.v2_conflict_fail'} == 1) {
455: $r->print("<em>Some fields in LON-CAPA 2.x no longer have an equivalent in LON-CAPA 3.x. These fields were appended; some fields may be duplicated or not match.</em><br />");
456: } else {
457: $r->print("<em>These changes were automatically transferred to LON-CAPA 3.x</em>");
458: }
459: }
460:
461: #----------------------------Print Headtitle
462: if ($target ne 'tex') {
463: $r->print('<h1>'.$courseenv{'description'}.'</h1>');
464: $r->print('<h3>'. &Apache::lonnet::domain($cdom,'description').'</h3>');
465: } else {
466: $r->print('\noindent{\large\textbf{'.$courseenv{'description'}.'}}\\\\\\\\\textbf{'.
467: &Apache::lonnet::domain($cdom,'description').'}\\\\');
468: }
469:
470: # -------------------------------------------------------- Get course personnel
471: my %coursepersonnel=&Apache::lonnet::get_course_adv_roles($cdom.'/'.$cnum);
472: if ($target ne 'tex') {
473: $r->print(&Apache::lonhtmlcommon::start_pick_box());
474: } else {
475: $r->print('\begin{tabular}{|p{0.45\textwidth}|p{0.45\textwidth}|}\hline');
476: }
477: my @personnel=sort(keys(%coursepersonnel));
478: my $lastpers=$personnel[$#personnel];
479: foreach my $element (@personnel) {
480: if ($target ne 'tex') {
481: $r->print(&Apache::lonhtmlcommon::row_title($element));
482: } else {
483: $r->print(' '.&Apache::lonxml::xmlparse($r,'tex',$element).' & ');
484: }
485: foreach (split(/\,/,$coursepersonnel{$element})) {
486: my ($puname,$pudom)=split(/\:/,$_);
487: if ($target ne 'tex') {
488: my $courseperson = &Apache::loncommon::plainname($puname,$pudom);
489: if (($env{'user.name'} eq '') || ($env{'user.name'} eq 'public') ||
490: ($env{'user.domain'} eq '') || ($env{'user.domain'} eq 'public')) {
491: $r->print(' '.$courseperson);
492: } else {
493: $r->print(' '.&Apache::loncommon::aboutmewrapper($courseperson,
494: $puname,$pudom));
495: }
496: } else {
497: $r->print(' '.&Apache::loncommon::plainname($puname,
498: $pudom).' ');
499: }
500: }
501: if ($target ne 'tex') {
502: my $lastclose=$element eq $lastpers?1:0;
503: $r->print(&Apache::lonhtmlcommon::row_closure($lastclose));
504: } else {
505: $r->print('\\\\ \hline');
506: }
507: }
508: if ($target ne 'tex') {
509: $r->print(&Apache::lonhtmlcommon::end_pick_box());
510: } else {
511: $r->print('\end{tabular}\\\\');
512: }
513: # -------------------------------------------------------------- Announcements?
514: my $day = &Apache::lonannounce::showday(time,2,
515: &Apache::lonannounce::readcalendar($cdom.'_'.$cnum));
516: if ($target ne 'tex') {
517: if ($allowed) {
518: &Apache::lontemplate::print_start_template($r,'RSS Feeds and Blogs','LC_Box');
519: $r->print(&Apache::lonrss::advertisefeeds($cnum,$cdom,$forceedit));
520: my $editurl= &Apache::lonnet::absolute_url().'/adm/'.$cdom.'/'.$cnum.'/_rss.html';
521: $r->print( '<a href="'.$editurl.'">'.&mt('New RSS Feed or Blog').'</a>');
522: &Apache::lontemplate::print_end_template($r);
523: } elsif (&Apache::lonrss::advertisefeeds($cnum,$cdom) ne '') {
524: &Apache::lontemplate::print_start_template($r,'RSS Feeds and Blogs','LC_Box');
525: $r->print(&Apache::lonrss::advertisefeeds($cnum,$cdom,$forceedit));
526: &Apache::lontemplate::print_end_template($r);
527: }
528:
529: } else {
530: $r->print(&Apache::lonxml::xmlparse($r,'tex',$day));
531: }
532:
533: # ---------------------------------------------------------------- Get syllabus
534: if (($syllabus{'uploaded.lastmodified'}) || ($allowed)) {
535: if ($allowed) {
536: $r->print('<form method="post" action="">'.
537: '<input type="hidden" name="forceedit" value="edit" />');
538: }
539: my @htmlids=();
540: my $url_include_handler = sub {
541: my ($r, $field, $json_ref, $group, $target, $allowed) = @_;
542: my $message = $json_ref->{items}{$field}{content};
543: my $title = $json_ref->{items}{$field}{title};
544: my $urls = $message;
545: foreach my $filelink (split(/\n/,$urls)) {
546: my $output='';
547: # embed style?
548: my ($curfext)=($filelink=~/\.([^\.]+)$/);
549: my $embstyle=&Apache::loncommon::fileembstyle($curfext);
550: if (($embstyle eq 'ssi') || ($curfext=~/\/$/)) {# make ssi call and remove everything but the body contents
551: $output=&Apache::lonnet::ssi_body($filelink);
552: } elsif ($embstyle eq 'img') {# embed as an image
553: $output='<img src="'.$filelink.'" />';
554: }
555: if ($output ne '') {
556: $message='';
557: if ($target ne 'tex') {
558: $message.='<p>'.$output.'</p>';
559: } else {
560: $message.=' '.&Apache::lonxml::xmlparse($r,'tex','<p>'.$output.'</p>').' ';
561: }
562: }
563: }
564: if ($allowed) {
565: &Apache::lonfeedback::newline_to_br(\$urls);
566: &Apache::lontemplate::print_start_template($r,$title.
567: &Apache::loncommon::help_open_topic('Syllabus_URLs'),'LC_Box');
568: $r->print($urls);
569: $r->print("<br /><div>");
570: &Apache::lontemplate::print_textarea_template($r, $message,
571: $field, Apache::lontemplate->RICH_TEXT_ALWAYS_OFF);
572: &Apache::lontemplate::print_saveall_template($r);
573: $r->print("</div>");
574: &Apache::lontemplate::print_end_template($r);
575:
576: } else {
577: $r->print($message);
578: }
579: };
580: my %custom_hash = ( TYPE_URL_INCLUDE() => $url_include_handler );
581: @htmlids = &print_template_new_fields($r, \%data,
582: $target, $allowed, Apache::lontemplate->RICH_TEXT_DETECT_HTML, \%custom_hash);
583: if ($allowed) {
584: $r->print('</form>'.
585: &Apache::lonhtmlcommon::htmlareaselectactive(@htmlids));
586: }
587: } else {
588: if ($target ne 'tex') {$r->print('<p>');} else {$r->print('\par ');}
589: $r->print(&mt('No syllabus information provided.'));
590: if ($target ne 'tex') {$r->print('</p>');}
591: }
592: if ($target ne 'tex') {
593: if ($env{'form.backto'} eq 'coursecatalog') {
594: $r->print('<form name="backtocat" method="post" action="/adm/coursecatalog">'.
595: &Apache::lonhtmlcommon::echo_form_input(['backto','courseid']).
596: '</form>');
597: }
598: $r->print(&Apache::loncommon::end_page());
599: } else {
600: $r->print('\end{document}');
601: }
602: return OK;
603: }
604:
605: sub print_template_new_fields {
606: my ($r, $data_ref, $target, $allowed, $default_rich_text, $custom_handlers_ref, $group) = @_;
607: my @html_ids = ();
608: my %data = %{$data_ref};
609: my @fields = @{thaw($data{'data.fields'})};
610: my %custom_handlers = %{$custom_handlers_ref};
611:
612: foreach my $key (@fields) {
613: my %field = %{thaw($data{'data.field.'.$key})};
614: my $title = $field{title};
615: my $raw_message = $field{content};
616: my $type = $field{type};
617: my $message = $raw_message if (($raw_message=~/\w/) || ($allowed));
618: if ((%custom_handlers) && exists($custom_handlers{$type})) {
619: #$custom_handlers{$type}->($r, $field, $json_ref, $group, $target, $allowed);
620: } else {
621: if (($raw_message=~/\w/) || ($allowed)) {
622: if (!&Apache::lonfeedback::contains_block_html($message)) {
623: &Apache::lonfeedback::newline_to_br(\$message);
624: } else {
625: $message = &Apache::lonfeedback::tidy_html($message);
626: }
627: $message=&Apache::lonhtmlcommon::raw_href_to_link($message);
628: if ($allowed) {
629: $message=&Apache::lonspeller::markeduptext($message);
630: }
631: $message=&Apache::lontexconvert::msgtexconverted($message);
632: if ($target ne 'tex') {
633: #output of syllabusfields will be generated here.
634: &Apache::lontemplate::print_start_template($r,$title,'LC_Box');
635: $r->print($message);
636: if ($allowed) {
637: $r->print("<br /><div>");
638: &Apache::lontemplate::print_textarea_template($r, $raw_message,
639: $key, $default_rich_text);
640: &Apache::lontemplate::print_saveall_template($r);
641: if (!exists($data{'properties.v2_converted'})) {
642: $r->print("<a href='?delete=$key&forceedit=1'>Delete</a> ");
643: $r->print("<a href='?rename=$key&forceedit=1'>Rename to \"Hello, World!\"</a>");
644: }
645: $r->print("</div>");
646: }
647: &Apache::lontemplate::print_end_template($r);
648: } else {
649: my $safeinit;
650: $r->print(&Apache::lonxml::xmlparse($r,'tex','<h3>'.$title.'</h3>'));
651: $r->print(&Apache::lonxml::xmlparse($r,'tex',$message));
652: }
653: push(@html_ids,"hello");
654: }
655: }
656: }
657:
658: return @html_ids;
659: }
660:
661: sub convert_from_v2 {
662: my ($r, $data_ref, $fields_ref, $conflict) = @_;
663: my %data = %{$data_ref};
664: my %fields = %{$fields_ref};
665: my @fields_order = (!$conflict) ? () : @{thaw($data{'data.fields'})};
666: my %old_new_map = (!$conflict) ? () : %{thaw($data{'data.old_new_map'})};
667: my $repeat_int = 0; #ensure fields with created timestamp are unique
668: foreach my $element (sort(keys(%fields))) {
669: my %new_element = ();
670: my $title = $fields{$element};
671: my $title_hash = time."_".$$;
672: if (exists($data{'data.field.'.$title_hash})) {
673: $title_hash .= "_".$repeat_int++;
674: }
675: my $content = $data{$element};
676: $new_element{title} = $title;
677: $new_element{content} = $content;
678: if ($element eq 'lll_includeurl') {
679: $new_element{type} = TYPE_URL_INCLUDE;
680: } else {
681: $new_element{type} = TYPE_TEXT_HTML;
682: }
683: if (!$conflict) {
684: $r->print("Creating new field with ID: ".$title_hash."<br />");
685: $data{'data.field.'.$title_hash} = freeze(\%new_element);
686: $old_new_map{$element} = $title_hash;
687: push(@fields_order, $title_hash);
688: } else {
689: if (exists($old_new_map{$element})) {
690: $r->print("Transferring old field ".$element." to new ID: ".$old_new_map{$element}."<br />");
691: if (exists($data{'data.field.'.$old_new_map{$element}})) {
692: my %new_field = %{thaw($data{'data.field.'.$old_new_map{$element}})};
693: $new_field{content} = $content;
694: $data{'data.field.'.$old_new_map{$element}} = freeze(\%new_field);
695: }
696: } else {
697: $data{'data.field.'.$title_hash} = freeze(\%new_element);
698: $old_new_map{$element} = $title_hash;
699: $data{'properties.v2_conflict_fail'} = 1;
700: push(@fields_order, $title_hash);
701: }
702: }
703: }
704: $data{'data.fields'} = freeze(\@fields_order);
705: $data{'data.old_new_map'} = freeze(\%old_new_map);
706: $data{'properties.last_modified'} = time;
707: $data{'properties.v2_converted'} = 1;
708: $data{'properties.type'} = 'syllabus';
709:
710: return \%data;
711: }
712:
713: 1;
714: __END__
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