Annotation of loncom/homework/lonhomework.pm, revision 1.327
1.63 albertel 1: # The LearningOnline Network with CAPA
1.52 albertel 2: # The LON-CAPA Homework handler
1.63 albertel 3: #
1.327 ! raeburn 4: # $Id: lonhomework.pm,v 1.326 2011/06/06 16:48:39 www Exp $
1.63 albertel 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/
1.159 www 27:
1.1 albertel 28:
29: package Apache::lonhomework;
30: use strict;
1.73 albertel 31: use Apache::style();
32: use Apache::lonxml();
1.204 albertel 33: use Apache::lonnet;
1.73 albertel 34: use Apache::lonplot();
35: use Apache::inputtags();
36: use Apache::structuretags();
37: use Apache::randomlabel();
38: use Apache::response();
39: use Apache::hint();
40: use Apache::outputtags();
1.83 albertel 41: use Apache::caparesponse();
42: use Apache::radiobuttonresponse();
43: use Apache::optionresponse();
44: use Apache::imageresponse();
45: use Apache::essayresponse();
46: use Apache::externalresponse();
1.106 albertel 47: use Apache::rankresponse();
1.107 albertel 48: use Apache::matchresponse();
1.137 albertel 49: use Apache::chemresponse();
1.321 www 50: use Apache::functionplotresponse();
1.169 albertel 51: use Apache::drawimage();
1.26 www 52: use Apache::Constants qw(:common);
1.83 albertel 53: use Apache::loncommon();
1.146 albertel 54: use Apache::lonlocal;
1.179 albertel 55: use Time::HiRes qw( gettimeofday tv_interval );
1.282 albertel 56: use HTML::Entities();
57: use File::Copy();
1.188 foxr 58:
1.189 albertel 59: # FIXME - improve commenting
1.188 foxr 60:
1.43 albertel 61:
1.69 harris41 62: BEGIN {
1.145 albertel 63: &Apache::lonxml::register_insert();
1.43 albertel 64: }
65:
1.188 foxr 66:
1.276 foxr 67: =pod
68:
69: =item set_bubble_lines()
70:
71: Called at analysis time to set the bubble lines
72: hash for the problem.. This should be called in the
73: end_problemtype tag in analysis mode.
74:
75: We fetch the hash of part id counters from lonxml
76: and push them into analyze:{part_id.bubble_lines}.
77:
78: =cut
79:
80: sub set_bubble_lines {
81: my %bubble_counters = &Apache::lonxml::get_bubble_line_hash();
82:
83: foreach my $key (keys(%bubble_counters)) {
84: $Apache::lonhomework::analyze{"$key.bubble_lines"} =
85: $bubble_counters{"$key"};
86: }
87: }
88:
1.301 jms 89: #
90: # Decides what targets to render for.
91: # Implicit inputs:
92: # Various session environment variables:
93: # request.state - published - is a /res/ resource
94: # uploaded - is a /uploaded/ resource
95: # contruct - is a /priv/ resource
96: # form.grade_target - a form parameter requesting a specific target
1.5 albertel 97: sub get_target {
1.204 albertel 98: &Apache::lonxml::debug("request.state = $env{'request.state'}");
99: if( defined($env{'form.grade_target'})) {
100: &Apache::lonxml::debug("form.grade_target= $env{'form.grade_target'}");
1.188 foxr 101: } else {
1.189 albertel 102: &Apache::lonxml::debug("form.grade_target <undefined>");
1.188 foxr 103: }
1.204 albertel 104: if (($env{'request.state'} eq "published") ||
105: ($env{'request.state'} eq "uploaded")) {
106: if ( defined($env{'form.grade_target'} )
107: && ($env{'form.grade_target'} eq 'tex')) {
108: return ($env{'form.grade_target'});
109: } elsif ( defined($env{'form.grade_target'} )
1.145 albertel 110: && ($Apache::lonhomework::viewgrades eq 'F' )) {
1.207 albertel 111: return ($env{'form.grade_target'});
1.244 albertel 112: } elsif ( $env{'form.grade_target'} eq 'webgrade'
113: && ($Apache::lonhomework::queuegrade eq 'F' )) {
114: return ($env{'form.grade_target'});
1.320 raeburn 115: } elsif ($env{'form.grade_target'} eq 'answer') {
116: if ($env{'form.answer_output_mode'} eq 'tex') {
117: return ($env{'form.grade_target'});
118: }
119: }
1.207 albertel 120: if ($env{'form.webgrade'} &&
1.244 albertel 121: ($Apache::lonhomework::modifygrades eq 'F'
122: || $Apache::lonhomework::queuegrade eq 'F' )) {
1.207 albertel 123: return ('grade','webgrade');
1.145 albertel 124: }
1.204 albertel 125: if ( defined($env{'form.submitted'}) &&
126: ( !defined($env{'form.newrandomization'}))) {
1.217 albertel 127: return ('grade', 'web');
1.145 albertel 128: } else {
1.217 albertel 129: return ('web');
1.145 albertel 130: }
1.204 albertel 131: } elsif ($env{'request.state'} eq "construct") {
1.323 www 132: #
133: # We are in construction space, editing and testing problems
134: #
1.204 albertel 135: if ( defined($env{'form.grade_target'}) ) {
136: return ($env{'form.grade_target'});
1.145 albertel 137: }
1.204 albertel 138: if ( defined($env{'form.preview'})) {
139: if ( defined($env{'form.submitted'})) {
1.323 www 140: #
141: # We are doing a problem preview
142: #
1.145 albertel 143: return ('grade', 'web');
144: } else {
145: return ('web');
146: }
147: } else {
1.267 albertel 148: if ($env{'form.problemstate'} eq 'WEB_GRADE') {
149: return ('grade','webgrade','answer');
1.324 www 150: } elsif ($env{'form.problemmode'} eq 'view') {
151: return ('grade','web','answer');
1.323 www 152: } elsif ($env{'form.problemmode'} eq 'saveview') {
153: return ('modified','web','answer');
154: } elsif ($env{'form.problemmode'} eq 'discard') {
155: return ('web','answer');
156: } elsif (($env{'form.problemmode'} eq 'saveedit') ||
157: ($env{'form.problemmode'} eq 'undo')) {
158: return ('modified','no_output_web','edit');
159: } elsif ($env{'form.problemmode'} eq 'edit') {
160: return ('no_output_web','edit');
1.145 albertel 161: } else {
162: return ('web');
163: }
1.323 www 164: }
165: #
166: # End of Construction Space
167: #
1.15 albertel 168: }
1.323 www 169: #
170: # Huh? We are nowhere, so do nothing.
171: #
1.145 albertel 172: return ();
1.5 albertel 173: }
174:
1.3 albertel 175: sub setup_vars {
1.145 albertel 176: my ($target) = @_;
177: return ';'
1.11 albertel 178: # return ';$external::target='.$target.';';
1.2 albertel 179: }
180:
1.200 albertel 181: sub proctor_checked_in {
1.226 albertel 182: my ($slot_name,$slot,$type)=@_;
183: my @possible_proctors=split(",",$slot->{'proctor'});
184:
1.248 albertel 185: return 1 if (!@possible_proctors);
186:
1.226 albertel 187: my $key;
188: if ($type eq 'Task') {
1.230 albertel 189: my $version=$Apache::lonhomework::history{'resource.0.version'};
190: $key ="resource.$version.0.checkedin";
1.226 albertel 191: } elsif ($type eq 'problem') {
192: $key ='resource.0.checkedin';
193: }
1.249 albertel 194: # backward compatability, used to be username@domain,
195: # now is username:domain
196: my $who = $Apache::lonhomework::history{$key};
197: if ($who !~ /:/) {
198: $who =~ tr/@/:/;
199: }
1.226 albertel 200: foreach my $possible (@possible_proctors) {
1.249 albertel 201: if ($who eq $possible
1.226 albertel 202: && $Apache::lonhomework::history{$key.'.slot'} eq $slot_name) {
1.202 albertel 203: return 1;
204: }
205: }
1.226 albertel 206:
1.200 albertel 207: return 0;
208: }
209:
1.226 albertel 210: sub check_slot_access {
211: my ($id,$type)=@_;
212:
1.207 albertel 213: # does it pass normal muster
1.226 albertel 214: my ($status,$datemsg)=&check_access($id);
215:
1.252 albertel 216: my $useslots = &Apache::lonnet::EXT("resource.0.useslots");
1.251 albertel 217: if ($useslots ne 'resource' && $useslots ne 'map'
218: && $useslots ne 'map_map') {
1.226 albertel 219: return ($status,$datemsg);
220: }
221:
1.200 albertel 222: if ($status eq 'SHOW_ANSWER' ||
223: $status eq 'CLOSED' ||
224: $status eq 'INVALID_ACCESS' ||
225: $status eq 'UNAVAILABLE') {
226: return ($status,$datemsg);
227: }
1.204 albertel 228: if ($env{'request.state'} eq "construct") {
1.203 albertel 229: return ($status,$datemsg);
230: }
1.226 albertel 231:
232: if ($type eq 'Task') {
233: my $version=$Apache::lonhomework::history{'resource.version'};
1.230 albertel 234: if ($Apache::lonhomework::history{"resource.$version.0.checkedin"} &&
235: $Apache::lonhomework::history{"resource.$version.0.status"} eq 'pass') {
1.226 albertel 236: return ('SHOW_ANSWER');
237: }
1.207 albertel 238: }
1.226 albertel 239:
1.288 raeburn 240: my $availablestudent = &Apache::lonnet::EXT("resource.0.availablestudent");
241: my $available = &Apache::lonnet::EXT("resource.0.available");
242: my @slots= (split(':',$availablestudent),split(':',$available));
1.210 albertel 243:
1.200 albertel 244: # if (!@slots) {
245: # return ($status,$datemsg);
246: # }
247: my $slotstatus='NOT_IN_A_SLOT';
1.206 albertel 248: my ($returned_slot,$slot_name);
1.210 albertel 249: foreach my $slot (@slots) {
1.241 albertel 250: $slot =~ s/(^\s*|\s*$)//g;
1.201 albertel 251: &Apache::lonxml::debug("getting $slot");
1.200 albertel 252: my %slot=&Apache::lonnet::get_slot($slot);
1.201 albertel 253: &Apache::lonhomework::showhash(%slot);
1.200 albertel 254: if ($slot{'starttime'} < time &&
255: $slot{'endtime'} > time &&
1.297 raeburn 256: &Apache::loncommon::check_ip_acc($slot{'ip'})) {
1.202 albertel 257: &Apache::lonxml::debug("$slot is good");
258: $slotstatus='NEEDS_CHECKIN';
259: $returned_slot=\%slot;
1.206 albertel 260: $slot_name=$slot;
1.200 albertel 261: last;
262: }
263: }
1.202 albertel 264: if ($slotstatus eq 'NEEDS_CHECKIN' &&
1.226 albertel 265: &proctor_checked_in($slot_name,$returned_slot,$type)) {
1.322 raeburn 266: &Apache::lonxml::debug("proctor checked in");
267: $slotstatus=$status;
1.200 albertel 268: }
1.226 albertel 269:
1.235 albertel 270: my ($is_correct,$got_grade,$checkedin);
1.226 albertel 271: if ($type eq 'Task') {
1.230 albertel 272: my $version=$Apache::lonhomework::history{'resource.0.version'};
1.231 albertel 273: $got_grade =
274: ($Apache::lonhomework::history{"resource.$version.0.status"}
275: =~ /^(?:pass|fail)$/);
1.235 albertel 276: $is_correct =
277: ($Apache::lonhomework::history{"resource.$version.0.status"} eq 'pass'
278: || $Apache::lonhomework::history{"resource.0.solved"} =~ /^correct_/ );
1.226 albertel 279: $checkedin =
1.230 albertel 280: $Apache::lonhomework::history{"resource.$version.0.checkedin"};
1.226 albertel 281: } elsif ($type eq 'problem') {
1.252 albertel 282: $got_grade = 1;
283: $checkedin = $Apache::lonhomework::history{"resource.0.checkedin"};
284: $is_correct =
285: ($Apache::lonhomework::history{"resource.0.solved"} =~/^correct_/);
1.226 albertel 286: }
287:
1.235 albertel 288: &Apache::lonxml::debug(" slot is $slotstatus checkedin ($checkedin) got_grade ($got_grade) is_correct ($is_correct)");
289:
1.243 albertel 290: # no slot is currently open, and has been checked in for this version
291: # but hasn't got a grade, therefore must be awaiting a grade
292: if (!defined($slot_name)
293: && $checkedin
1.236 albertel 294: && !$got_grade) {
295: return ('WAITING_FOR_GRADE');
296: }
297:
1.309 raeburn 298: # Previously used slot is no longer open, and has been checked in for this version.
299: # However, the problem is not closed, and potentially, another slot might be
300: # used to gain access to it to work on it, until the due date is reached, and the
301: # problem then becomes CLOSED. Therefore return the slotstatus -
302: # (which will be NOT_IN_SLOT).
1.252 albertel 303: if (!defined($slot_name)
304: && $checkedin
305: && $type eq 'problem') {
1.309 raeburn 306: return ($slotstatus);
1.252 albertel 307: }
308:
1.226 albertel 309: if ($slotstatus eq 'NOT_IN_A_SLOT'
310: && $checkedin ) {
311:
1.231 albertel 312: if ($got_grade) {
1.209 albertel 313: return ('SHOW_ANSWER');
314: } else {
315: return ('WAITING_FOR_GRADE');
316: }
1.226 albertel 317:
1.207 albertel 318: }
1.255 albertel 319:
1.235 albertel 320: if ( $is_correct) {
1.255 albertel 321: if ($type eq 'problem') {
322: return ($status);
323: }
1.235 albertel 324: return ('SHOW_ANSWER');
325: }
1.255 albertel 326:
1.225 albertel 327: if ( $status eq 'CANNOT_ANSWER' &&
328: ($slotstatus ne 'NEEDS_CHECKIN' && $slotstatus ne 'NOT_IN_A_SLOT')) {
329: return ($status,$datemsg);
330: }
331:
1.206 albertel 332: return ($slotstatus,$datemsg,$slot_name,$returned_slot);
1.198 albertel 333: }
1.200 albertel 334:
1.301 jms 335: # JB, 9/24/2002: Any changes in this function may require a change
336: # in lonnavmaps::resource::getDateStatus.
1.53 www 337: sub check_access {
1.145 albertel 338: my ($id) = @_;
339: my $date ='';
340: my $status;
341: my $datemsg = '';
342: my $lastdate = '';
343: my $type;
344: my $passed;
345:
1.204 albertel 346: if ($env{'request.state'} eq "construct") {
347: if ($env{'form.problemstate'}) {
348: if ($env{'form.problemstate'} =~ /^CANNOT_ANSWER/) {
1.277 albertel 349: if ( ! ($env{'form.problemstate'} eq 'CANNOT_ANSWER_correct'
350: && &hide_problem_status())) {
1.168 albertel 351: return ('CANNOT_ANSWER',
1.174 www 352: &mt('is in this state due to author settings.'));
1.167 albertel 353: }
1.165 albertel 354: } else {
1.204 albertel 355: return ($env{'form.problemstate'},
1.174 www 356: &mt('is in this state due to author settings.'));
1.165 albertel 357: }
358: }
1.145 albertel 359: &Apache::lonxml::debug("in construction ignoring dates");
360: $status='CAN_ANSWER';
1.146 albertel 361: $datemsg=&mt('is in under construction');
1.163 albertel 362: # return ($status,$datemsg);
1.145 albertel 363: }
364:
365: &Apache::lonxml::debug("checking for part :$id:");
366: &Apache::lonxml::debug("time:".time);
1.152 albertel 367:
1.261 albertel 368: my ($symb)=&Apache::lonnet::whichuser();
1.212 albertel 369: &Apache::lonxml::debug("symb:".$symb);
370: #if ($env{'request.state'} ne "construct" && $symb ne '') {
1.204 albertel 371: if ($env{'request.state'} ne "construct") {
1.288 raeburn 372: my $idacc = &Apache::lonnet::EXT("resource.$id.acc");
1.297 raeburn 373: my $allowed=&Apache::loncommon::check_ip_acc($idacc);
1.163 albertel 374: if (!$allowed && ($Apache::lonhomework::browse ne 'F')) {
375: $status='INVALID_ACCESS';
376: $date=&mt("can not be accessed from your location.");
1.145 albertel 377: return($status,$date);
378: }
1.327 ! raeburn 379: if ($env{'form.grade_imsexport'}) {
! 380: if (($env{'request.course.id'}) &&
! 381: (&Apache::lonnet::allowed('mdc',$env{'request.course.id'}))) {
! 382: return ('SHOW_ANSWER');
! 383: }
! 384: }
1.226 albertel 385: foreach my $temp ("opendate","duedate","answerdate") {
1.163 albertel 386: $lastdate = $date;
1.247 albertel 387: if ($temp eq 'duedate') {
388: $date = &due_date($id);
389: } else {
390: $date = &Apache::lonnet::EXT("resource.$id.$temp");
391: }
392:
1.163 albertel 393: my $thistype = &Apache::lonnet::EXT("resource.$id.$temp.type");
394: if ($thistype =~ /^(con_lost|no_such_host)/ ||
395: $date =~ /^(con_lost|no_such_host)/) {
396: $status='UNAVAILABLE';
397: $date=&mt("may open later.");
398: return($status,$date);
399: }
400: if ($thistype eq 'date_interval') {
401: if ($temp eq 'opendate') {
402: $date=&Apache::lonnet::EXT("resource.$id.duedate")-$date;
403: }
404: if ($temp eq 'answerdate') {
405: $date=&Apache::lonnet::EXT("resource.$id.duedate")+$date;
406: }
1.145 albertel 407: }
1.163 albertel 408: &Apache::lonxml::debug("found :$date: for :$temp:");
409: if ($date eq '') {
410: $date = &mt("an unknown date"); $passed = 0;
411: } elsif ($date eq 'con_lost') {
412: $date = &mt("an indeterminate date"); $passed = 0;
413: } else {
414: if (time < $date) { $passed = 0; } else { $passed = 1; }
1.274 www 415: $date = &Apache::lonlocal::locallocaltime($date);
1.145 albertel 416: }
1.163 albertel 417: if (!$passed) { $type=$temp; last; }
1.145 albertel 418: }
1.163 albertel 419: &Apache::lonxml::debug("have :$type:$passed:");
420: if ($passed) {
421: $status='SHOW_ANSWER';
422: $datemsg=$date;
423: } elsif ($type eq 'opendate') {
424: $status='CLOSED';
425: $datemsg = &mt("will open on")." $date";
426: } elsif ($type eq 'duedate') {
427: $status='CAN_ANSWER';
428: $datemsg = &mt("is due at")." $date";
429: } elsif ($type eq 'answerdate') {
430: $status='CLOSED';
431: $datemsg = &mt("was due on")." $lastdate".&mt(", and answers will be available on")." $date";
1.145 albertel 432: }
433: }
1.212 albertel 434: if ($status eq 'CAN_ANSWER' ||
435: (($Apache::lonhomework::browse eq 'F') && ($status eq 'CLOSED'))) {
1.145 albertel 436: #check #tries, and if correct.
437: my $tries = $Apache::lonhomework::history{"resource.$id.tries"};
438: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
439: if ( $tries eq '' ) { $tries = '0'; }
1.164 albertel 440: if ( $maxtries eq '' &&
1.204 albertel 441: $env{'request.state'} ne 'construct') { $maxtries = '2'; }
1.326 www 442: $Apache::lonhomework::results{'resource.'.$id.'.maxtries'}=$maxtries;
1.164 albertel 443: if ($maxtries && $tries >= $maxtries) { $status = 'CANNOT_ANSWER'; }
1.145 albertel 444: # if (correct and show prob status) or excused then CANNOT_ANSWER
445: if(($Apache::lonhomework::history{"resource.$id.solved"}=~/^correct/
446: &&
1.325 www 447: &show_problem_status()
448: &&
449: $Apache::lonhomework::history{"resource.$id.awarded"}==1)
1.145 albertel 450: ||
451: $Apache::lonhomework::history{"resource.$id.solved"}=~/^excused/) {
452: $status = 'CANNOT_ANSWER';
453: }
1.285 albertel 454: if ($status eq 'CANNOT_ANSWER'
455: && &show_answer_problem_status()) {
456: $status = 'SHOW_ANSWER';
457: }
1.121 albertel 458: }
1.181 albertel 459: if ($status eq 'CAN_ANSWER' || $status eq 'CANNOT_ANSWER') {
1.286 albertel 460: my @interval=&Apache::lonnet::EXT("resource.$id.interval");
461: &Apache::lonxml::debug("looking for interval @interval");
462: if ($interval[0]) {
463: my $first_access=&Apache::lonnet::get_first_access($interval[1]);
1.177 albertel 464: &Apache::lonxml::debug("looking for accesstime $first_access");
465: if (!$first_access) {
466: $status='NOT_YET_VIEWED';
1.247 albertel 467: my $due_date = &due_date($id);
1.256 albertel 468: my $seconds_left = $due_date - time;
1.286 albertel 469: if ($seconds_left > $interval[0] || $due_date eq '') {
470: $seconds_left = $interval[0];
1.256 albertel 471: }
472: $datemsg=&seconds_to_human_length($seconds_left);
1.177 albertel 473: }
474: }
475: }
1.247 albertel 476:
1.133 albertel 477: #if (($status ne 'CLOSED') && ($Apache::lonhomework::type eq 'exam') &&
478: # (!$Apache::lonhomework::history{"resource.0.outtoken"})) {
479: # return ('UNCHECKEDOUT','needs to be checked out');
480: #}
1.54 www 481:
482:
1.145 albertel 483: &Apache::lonxml::debug("sending back :$status:$datemsg:");
484: if (($Apache::lonhomework::browse eq 'F') && ($status eq 'CLOSED')) {
485: &Apache::lonxml::debug("should be allowed to browse a resource when closed");
486: $status='CAN_ANSWER';
1.146 albertel 487: $datemsg=&mt('is closed but you are allowed to view it');
1.145 albertel 488: }
1.106 albertel 489:
1.145 albertel 490: return ($status,$datemsg);
1.20 albertel 491: }
1.301 jms 492: # this should work exactly like the copy in lonnavmaps.pm
1.246 albertel 493: sub due_date {
1.250 albertel 494: my ($part_id,$symb,$udom,$uname)=@_;
1.246 albertel 495: my $date;
1.286 albertel 496: my @interval= &Apache::lonnet::EXT("resource.$part_id.interval",$symb,
1.250 albertel 497: $udom,$uname);
1.286 albertel 498: &Apache::lonxml::debug("looking for interval $part_id $symb @interval");
1.250 albertel 499: my $due_date= &Apache::lonnet::EXT("resource.$part_id.duedate",$symb,
500: $udom,$uname);
1.247 albertel 501: &Apache::lonxml::debug("looking for due_date $part_id $symb $due_date");
1.286 albertel 502: if ($interval[0] =~ /\d+/) {
503: my $first_access=&Apache::lonnet::get_first_access($interval[1],$symb);
504: &Apache::lonxml::debug("looking for first_access $first_access ($interval[1])");
1.247 albertel 505: if (defined($first_access)) {
1.286 albertel 506: my $interval = $first_access+$interval[0];
1.283 albertel 507: $date = (!$due_date || $interval < $due_date) ? $interval
508: : $due_date;
1.247 albertel 509: } else {
510: $date = $due_date;
511: }
512: } else {
513: $date = $due_date;
1.246 albertel 514: }
515: return $date
516: }
517:
1.192 albertel 518: sub seconds_to_human_length {
519: my ($length)=@_;
520:
521: my $seconds=$length%60; $length=int($length/60);
522: my $minutes=$length%60; $length=int($length/60);
523: my $hours=$length%24; $length=int($length/24);
524: my $days=$length;
525:
526: my $timestr;
527: if ($days > 0) { $timestr.=&mt('[quant,_1,day]',$days); }
528: if ($hours > 0) { $timestr.=($timestr?", ":"").
529: &mt('[quant,_1,hour]',$hours); }
530: if ($minutes > 0) { $timestr.=($timestr?", ":"").
531: &mt('[quant,_1,minute]',$minutes); }
532: if ($seconds > 0) { $timestr.=($timestr?", ":"").
533: &mt('[quant,_1,second]',$seconds); }
534: return $timestr;
535: }
536:
1.41 albertel 537: sub showhash {
1.145 albertel 538: my (%hash) = @_;
539: &showhashsubset(\%hash,'.');
540: return '';
1.79 albertel 541: }
542:
1.106 albertel 543: sub showarray {
544: my ($array)=@_;
545: my $string="(";
546: foreach my $elm (@{ $array }) {
1.193 albertel 547: if (ref($elm) eq 'ARRAY') {
548: $string.=&showarray($elm);
549: } elsif (ref($elm) eq 'HASH') {
550: $string.= "HASH --- \n<br />";
551: $string.= &showhashsubset($elm,'.');
1.106 albertel 552: } else {
553: $string.="$elm,"
554: }
555: }
556: chop($string);
557: $string.=")";
558: return $string;
559: }
560:
1.79 albertel 561: sub showhashsubset {
1.145 albertel 562: my ($hash,$keyre) = @_;
563: my $resultkey;
564: foreach $resultkey (sort keys %$hash) {
1.193 albertel 565: if ($resultkey !~ /$keyre/) { next; }
566: if (ref($$hash{$resultkey}) eq 'ARRAY' ) {
567: &Apache::lonxml::debug("$resultkey ---- ".
568: &showarray($$hash{$resultkey}));
569: } elsif (ref($$hash{$resultkey}) eq 'HASH' ) {
570: &Apache::lonxml::debug("$resultkey ---- $$hash{$resultkey}");
571: &showhashsubset($$hash{$resultkey},'.');
572: } else {
573: &Apache::lonxml::debug("$resultkey ---- $$hash{$resultkey}");
1.145 albertel 574: }
575: }
576: &Apache::lonxml::debug("\n<br />restored values^</br>\n");
577: return '';
1.41 albertel 578: }
579:
580: sub setuppermissions {
1.204 albertel 581: $Apache::lonhomework::browse= &Apache::lonnet::allowed('bre',$env{'request.filename'});
582: my $viewgrades = &Apache::lonnet::allowed('vgr',$env{'request.course.id'});
1.145 albertel 583: if (! $viewgrades &&
1.204 albertel 584: exists($env{'request.course.sec'}) &&
585: $env{'request.course.sec'} !~ /^\s*$/) {
586: $viewgrades = &Apache::lonnet::allowed('vgr',$env{'request.course.id'}.
587: '/'.$env{'request.course.sec'});
1.145 albertel 588: }
1.244 albertel 589: $Apache::lonhomework::viewgrades = $viewgrades;
590:
1.185 albertel 591: if ($Apache::lonhomework::browse eq 'F' &&
1.204 albertel 592: $env{'form.devalidatecourseresdata'} eq 'on') {
1.261 albertel 593: my (undef,$courseid) = &Apache::lonnet::whichuser();
1.204 albertel 594: &Apache::lonnet::devalidatecourseresdata($env{"course.$courseid.num"},
595: $env{"course.$courseid.domain"});
1.185 albertel 596: }
1.244 albertel 597:
1.205 albertel 598: my $modifygrades = &Apache::lonnet::allowed('mgr',$env{'request.course.id'});
599: if (! $modifygrades &&
600: exists($env{'request.course.sec'}) &&
601: $env{'request.course.sec'} !~ /^\s*$/) {
602: $modifygrades =
603: &Apache::lonnet::allowed('mgr',$env{'request.course.id'}.
604: '/'.$env{'request.course.sec'});
605: }
606: $Apache::lonhomework::modifygrades = $modifygrades;
1.244 albertel 607:
608: my $queuegrade = &Apache::lonnet::allowed('mqg',$env{'request.course.id'});
609: if (! $queuegrade &&
610: exists($env{'request.course.sec'}) &&
611: $env{'request.course.sec'} !~ /^\s*$/) {
612: $queuegrade =
613: &Apache::lonnet::allowed('qgr',$env{'request.course.id'}.
614: '/'.$env{'request.course.sec'});
615: }
616: $Apache::lonhomework::queuegrade = $queuegrade;
1.205 albertel 617: return '';
1.41 albertel 618: }
619:
1.253 albertel 620: sub unset_permissions {
621: undef($Apache::lonhomework::queuegrade);
622: undef($Apache::lonhomework::modifygrades);
623: undef($Apache::lonhomework::viewgrades);
624: undef($Apache::lonhomework::browse);
625: }
626:
1.41 albertel 627: sub setupheader {
1.120 albertel 628: my $request=$_[0];
1.197 albertel 629: &Apache::loncommon::content_type($request,'text/html');
1.120 albertel 630: if (!$Apache::lonxml::debug && ($ENV{'REQUEST_METHOD'} eq 'GET')) {
631: &Apache::loncommon::no_cache($request);
632: }
1.196 albertel 633: # $request->set_last_modified(&Apache::lonnet::metadata($request->uri,
634: # 'lastrevisiondate'));
1.120 albertel 635: $request->send_http_header;
636: return OK if $request->header_only;
637: return ''
1.41 albertel 638: }
1.35 albertel 639:
1.47 albertel 640: sub handle_save_or_undo {
1.145 albertel 641: my ($request,$problem,$result) = @_;
1.323 www 642:
1.145 albertel 643: my $file = &Apache::lonnet::filelocation("",$request->uri);
644: my $filebak =$file.".bak";
645: my $filetmp =$file.".tmp";
646: my $error=0;
1.323 www 647: if (($env{'form.problemmode'} eq 'undo') || ($env{'form.problemmode'} eq 'undoxml')) {
1.145 albertel 648: my $error=0;
1.284 albertel 649: if (!&File::Copy::copy($file,$filetmp)) { $error=1; }
650: if ((!$error) && (!&File::Copy::copy($filebak,$file))) { $error=1; }
651: if ((!$error) && (!&File::Copy::move($filetmp,$filebak))) { $error=1; }
1.145 albertel 652: if (!$error) {
1.266 albertel 653: &Apache::lonxml::info("<p><b>".
654: &mt("Undid changes, Switched [_1] and [_2]",
655: '<span class="LC_filename">'.$filebak.
656: '</span>',
657: '<span class="LC_filename">'.$file.
658: '</span>')."</b></p>");
1.145 albertel 659: } else {
1.266 albertel 660: &Apache::lonxml::info("<p><span class=\"LC_error\">".
661: &mt("Unable to undo, unable to switch [_1] and [_2]",
662: '<span class="LC_filename">'.
663: $filebak.'</span>',
664: '<span class="LC_filename">'.
665: $file.'</span>')."</span></p>");
1.145 albertel 666: $error=1;
667: }
1.52 albertel 668: } else {
1.262 banghart 669: &Apache::lonnet::correct_line_ends($result);
1.323 www 670:
1.145 albertel 671: my $fs=Apache::File->new(">$filebak");
672: if (defined($fs)) {
673: print $fs $$problem;
674: } else {
1.266 albertel 675: &Apache::lonxml::info("<span class=\"LC_error\">".
676: &mt("Unable to make backup [_1]",
677: '<span class="LC_filename">'.
678: $filebak.'</span>')."</span>");
1.145 albertel 679: $error=2;
680: }
681: my $fh=Apache::File->new(">$file");
682: if (defined($fh)) {
683: print $fh $$result;
684: } else {
1.266 albertel 685: &Apache::lonxml::info('<span class="LC_error">'.
686: &mt("Unable to write to [_1]",
687: '<span class="LC_filename">'.
688: $file.'</span>').
689: '</span>');
1.145 albertel 690: $error|=4;
691: }
1.52 albertel 692: }
1.145 albertel 693: return $error;
1.64 albertel 694: }
695:
1.101 albertel 696: sub analyze_header {
697: my ($request) = @_;
1.289 raeburn 698: my $js = &Apache::structuretags::setmode_javascript();
1.312 bisitz 699:
700: # Breadcrumbs
701: my $brcrum = [{'href' => &Apache::loncommon::authorspace(),
702: 'text' => 'Construction Space'},
703: {'href' => '',
704: 'text' => 'Problem Testing'},
705: {'href' => '',
706: 'text' => 'Analyzing a problem'}];
707:
1.238 albertel 708: my $result =
1.312 bisitz 709: &Apache::loncommon::start_page('Analyzing a problem',
710: $js,
711: {'bread_crumbs' => $brcrum,})
1.311 bisitz 712: .&Apache::loncommon::head_subbox(
713: &Apache::loncommon::CSTR_pageheader());
1.238 albertel 714: $result .=
715: &Apache::lonxml::message_location().'
1.310 bisitz 716: <form name="lonhomework" method="post" action="'.
1.204 albertel 717: &HTML::Entities::encode($env{'request.uri'},'<>&"').'">'.
1.289 raeburn 718: '<input type="hidden" name="problemmode" value="'.
719: $env{'form.problemmode'}.'" />'.
1.179 albertel 720: &Apache::structuretags::remember_problem_state().'
1.278 albertel 721: <div class="LC_edit_problem_analyze_header">
1.289 raeburn 722: <input type="button" name="submitmode" value="'.&mt("EditXML").'" '.
723: 'onclick="javascript:setmode(this.form,'."'editxml'".')" />
724: <input type="button" name="submitmode" value="'.&mt('Edit').'" '.
725: 'onclick="javascript:setmode(this.form,'."'edit'".')" />
1.313 bisitz 726: <hr />
1.289 raeburn 727: <input type="button" name="submitmode" value="'.&mt("View").'" '.
728: 'onclick="javascript:setmode(this.form,'."'view'".')" />
1.313 bisitz 729: <hr />
1.278 albertel 730: </div>
1.101 albertel 731: </form>';
1.171 albertel 732: &Apache::lonxml::add_messages(\$result);
1.101 albertel 733: $request->print($result);
734: $request->rflush();
735: }
736:
1.109 albertel 737: sub analyze_footer {
738: my ($request) = @_;
1.237 albertel 739: $request->print(&Apache::loncommon::end_page());
1.109 albertel 740: $request->rflush();
741: }
742:
1.74 albertel 743: sub analyze {
1.101 albertel 744: my ($request,$file) = @_;
745: &Apache::lonxml::debug("Analyze");
746: my $result;
747: my %overall;
1.219 www 748: my %seedexample;
1.101 albertel 749: my %allparts;
1.204 albertel 750: my $rndseed=$env{'form.rndseed'};
1.101 albertel 751: &analyze_header($request);
1.114 albertel 752: my %prog_state=
1.146 albertel 753: &Apache::lonhtmlcommon::Create_PrgWin($request,&mt('Analyze Progress'),
754: &mt('Getting Problem Variants'),
1.204 albertel 755: $env{'form.numtoanalyze'},
1.175 albertel 756: 'inline',undef);
1.204 albertel 757: for(my $i=1;$i<$env{'form.numtoanalyze'}+1;$i++) {
1.114 albertel 758: &Apache::lonhtmlcommon::Increment_PrgWin($request,\%prog_state,
1.146 albertel 759: &mt('last problem'));
1.182 albertel 760: if (&Apache::loncommon::connection_aborted($request)) { return; }
1.219 www 761: my $thisseed=$i+$rndseed;
1.101 albertel 762: my $subresult=&Apache::lonnet::ssi($request->uri,
763: ('grade_target' => 'analyze'),
1.219 www 764: ('rndseed' => $thisseed));
1.101 albertel 765: (my $garbage,$subresult)=split(/_HASH_REF__/,$subresult,2);
766: my %analyze=&Apache::lonnet::str2hash($subresult);
1.114 albertel 767: my @parts;
768: if (defined(@{ $analyze{'parts'} })) {
769: @parts=@{ $analyze{'parts'} };
770: }
1.101 albertel 771: foreach my $part (@parts) {
772: if (!exists($allparts{$part})) {$allparts{$part}=1;};
1.109 albertel 773: if ($analyze{$part.'.type'} eq 'numericalresponse' ||
774: $analyze{$part.'.type'} eq 'stringresponse' ||
775: $analyze{$part.'.type'} eq 'formularesponse' ) {
1.263 albertel 776: foreach my $name (keys(%{ $analyze{$part.'.answer'} })) {
777: my $i=0;
778: foreach my $answer_part (@{ $analyze{$part.'.answer'}{$name} }) {
779: push( @{ $overall{$part.'.answer'}[$i] },
780: $answer_part);
781: my $concatanswer= join("\0",@{ $answer_part });
782: if (($concatanswer eq '') || ($concatanswer=~/^\@/)) {
1.266 albertel 783: $answer_part = ['<span class="LC_error">'.&mt('Error').'</span>'];
1.263 albertel 784: }
785: $seedexample{join("\0",$part,$i,@{$answer_part})}=
786: $thisseed;
787: $i++;
788: }
1.219 www 789: }
1.275 albertel 790: if (!keys(%{ $analyze{$part.'.answer'} })) {
791: my $answer_part =
792: ['<span class="LC_error">'.&mt('Error').'</span>'];
793: $seedexample{join("\0",$part,0,@{$answer_part})}=
794: $thisseed;
795: push( @{ $overall{$part.'.answer'}[0] },
796: $answer_part);
797: }
1.101 albertel 798: }
799: }
800: }
1.114 albertel 801: &Apache::lonhtmlcommon::Update_PrgWin($request,\%prog_state,
1.146 albertel 802: &mt('Analyzing Results'));
1.313 bisitz 803: $request->print('<hr />'
1.308 bisitz 804: .'<h3>'
805: .&mt('List of possible answers')
806: .'</h3>'
807: );
1.134 albertel 808: foreach my $part (sort(keys(%allparts))) {
1.109 albertel 809: if (defined(@{ $overall{$part.'.answer'} })) {
1.263 albertel 810: for (my $i=0;$i<scalar(@{ $overall{$part.'.answer'} });$i++) {
811: my $num_cols=scalar(@{ $overall{$part.'.answer'}[$i][0] });
1.308 bisitz 812: $request->print(&Apache::loncommon::start_data_table()
813: .&Apache::loncommon::start_data_table_header_row()
814: .'<th colspan="'.($num_cols+1).'">'
815: .&mt('Part').' '.$part
816: );
1.263 albertel 817: if (scalar(@{ $overall{$part.'.answer'} }) > 1) {
1.308 bisitz 818: $request->print(' '.&mt('Answer [_1]',$i+1));
1.263 albertel 819: }
1.308 bisitz 820: $request->print('</th>'
821: .&Apache::loncommon::end_data_table_header_row()
822: );
1.263 albertel 823: my %frequency;
824: foreach my $answer (sort {$a->[0] <=> $b->[0]} (@{ $overall{$part.'.answer'}[$i] })) {
825: $frequency{join("\0",@{ $answer })}++;
826: }
1.308 bisitz 827: $request->print(&Apache::loncommon::start_data_table_header_row()
828: .'<th colspan="'.($num_cols).'">'.&mt('Answer').'</th>'
829: .'<th>'.&mt('Frequency').'<br />'
830: .'('.&mt('click for example').')</th>'
831: .&Apache::loncommon::end_data_table_header_row()
832: );
1.263 albertel 833: foreach my $answer (sort {(split("\0",$a))[0] <=> (split("\0",$b))[0]} (keys(%frequency))) {
1.308 bisitz 834: $request->print(&Apache::loncommon::start_data_table_row()
835: .'<td>'
836: .join('</td><td>',split("\0",$answer))
837: .'</td>'
838: .'<td>'
839: .'<a href="'.$request->uri.'?rndseed='.$seedexample{join("\0",$part,$i,$answer)}.'">'.$frequency{$answer}.'</a>'
840: .'</td>'
841: .&Apache::loncommon::end_data_table_row()
842: );
1.263 albertel 843: }
1.308 bisitz 844: $request->print(&Apache::loncommon::end_data_table());
1.109 albertel 845: }
846: } else {
1.307 bisitz 847: $request->print('<p class="LC_warning">'
848: .&mt('Response [_1] is not analyzable at this time.',$part)
849: .'</p>'
850: );
1.101 albertel 851: }
852: }
1.130 albertel 853: if (scalar(keys(%allparts)) == 0 ) {
1.307 bisitz 854: $request->print('<p class="LC_warning">'
855: .&mt('Found no analyzable responses in this problem.'
856: .' Currently only Numerical, Formula and String response styles are supported.')
857: .'</p>'
858: );
1.130 albertel 859: }
1.114 albertel 860: &Apache::lonhtmlcommon::Close_PrgWin($request,\%prog_state);
1.109 albertel 861: &analyze_footer($request);
1.101 albertel 862: &Apache::lonhomework::showhash(%overall);
863: return $result;
1.74 albertel 864: }
865:
1.277 albertel 866: {
867: my $show_problem_status;
868: sub reset_show_problem_status {
869: undef($show_problem_status);
870: }
871:
872: sub set_show_problem_status {
873: my ($new_status) = @_;
874: $show_problem_status = lc($new_status);
875: }
876:
877: sub hide_problem_status {
878: return ($show_problem_status eq 'no'
879: || $show_problem_status eq 'no_feedback_ever');
880: }
881:
882: sub show_problem_status {
883: return ($show_problem_status eq 'yes'
1.285 albertel 884: || $show_problem_status eq 'answer'
1.277 albertel 885: || $show_problem_status eq '');
886: }
887:
888: sub show_some_problem_status {
889: return ($show_problem_status eq 'no');
890: }
891:
892: sub show_no_problem_status {
893: return ($show_problem_status eq 'no_feedback_ever');
894: }
1.285 albertel 895:
896: sub show_answer_problem_status {
897: return ($show_problem_status eq 'answer');
898: }
1.277 albertel 899: }
900:
1.64 albertel 901: sub editxmlmode {
1.145 albertel 902: my ($request,$file) = @_;
903: my $result;
904: my $problem=&Apache::lonnet::getfile($file);
905: if ($problem eq -1) {
1.305 bisitz 906: &Apache::lonxml::error(
907: '<b> '
908: .&mt('Unable to find [_1]',
909: '<span class="LC_filename">'.$file.'</span>')
910: .'</b>');
911:
1.145 albertel 912: $problem='';
913: }
1.323 www 914:
915: if (($env{'form.problemmode'} eq 'saveeditxml') ||
916: ($env{'form.problemmode'} eq 'saveviewxml') ||
917: ($env{'form.problemmode'} eq 'undoxml')) {
1.145 albertel 918: my $error=&handle_save_or_undo($request,\$problem,
1.204 albertel 919: \$env{'form.editxmltext'});
1.145 albertel 920: if (!$error) { $problem=&Apache::lonnet::getfile($file); }
921: }
1.204 albertel 922: &Apache::lonhomework::showhashsubset(\%env,'^form');
1.323 www 923: if ($env{'form.problemmode'} eq 'saveviewxml') {
1.204 albertel 924: &Apache::lonhomework::showhashsubset(\%env,'^form');
1.289 raeburn 925: $env{'form.problemmode'}='view';
1.145 albertel 926: &renderpage($request,$file);
927: } else {
928: my ($rows,$cols) = &Apache::edit::textarea_sizes(\$problem);
929: if ($cols > 80) { $cols = 80; }
930: if ($cols < 70) { $cols = 70; }
931: if ($rows < 20) { $rows = 20; }
1.269 albertel 932: my $js =
933: &Apache::edit::js_change_detection().
1.289 raeburn 934: &Apache::loncommon::resize_textarea_js().
1.296 raeburn 935: &Apache::structuretags::setmode_javascript().
1.298 foxr 936: &Apache::lonhtmlcommon::dragmath_js("EditMathPopup");
1.312 bisitz 937:
938: # Breadcrumbs
939: my $brcrum = [{'href' => &Apache::loncommon::authorspace(),
940: 'text' => 'Construction Space'},
941: {'href' => '',
942: 'text' => 'Problem Editing'}];
943:
1.238 albertel 944: my $start_page =
1.269 albertel 945: &Apache::loncommon::start_page(&mt("EditXML [_1]",$file),$js,
946: {'no_auto_mt_title' => 1,
1.318 droeschl 947: 'only_body' => 0,
1.269 albertel 948: 'add_entries' => {
949: 'onresize' => q[resize_textarea('LC_editxmltext','LC_aftertextarea')],
950: 'onload' => q[resize_textarea('LC_editxmltext','LC_aftertextarea')],
1.323 www 951: },
1.312 bisitz 952: 'bread_crumbs' => $brcrum,
1.323 www 953: });
1.311 bisitz 954:
955: $result=$start_page
956: .&Apache::loncommon::head_subbox(
957: &Apache::loncommon::CSTR_pageheader());
958: $result.=&renderpage($request,$file,['no_output_web'],1).
1.310 bisitz 959: '<form '.&Apache::edit::form_change_detection().' name="lonhomework" method="post" action="'.
1.204 albertel 960: &HTML::Entities::encode($env{'request.uri'},'<>&"').'">'.
1.179 albertel 961: &Apache::structuretags::remember_problem_state().'
1.278 albertel 962: <div class="LC_edit_problem_editxml_header">
1.280 albertel 963: <table class="LC_edit_problem_header_title"><tr><td>
1.317 bisitz 964: <h2>'.&mt('Problem Editing').' '.&Apache::loncommon::help_open_topic('Problem_Editor_XML_Index').'</h2>
1.280 albertel 965: </td><td align="right">
1.301 jms 966: '.&Apache::loncommon::helpLatexCheatsheet('Problem_LON-CAPA_Functions','Script Functions').'
1.280 albertel 967: </td></tr>
1.323 www 968: </table>';
969:
970: $result.='<input type="hidden" name="problemmode" value="saveedit" />'.
971: &Apache::structuretags::problem_edit_buttons('editxml');
972:
973: $result.='<hr style="clear:both;" />'.&Apache::lonxml::message_location().'</div>'.
974: '<textarea '.&Apache::edit::element_change_detection().
1.269 albertel 975: ' rows="'.$rows.'" cols="'.$cols.'" style="width:100%" '.
976: ' name="editxmltext" id="LC_editxmltext">'.
977: &HTML::Entities::encode($problem,'<>&"').'</textarea>
978: <div id="LC_aftertextarea">
979: </div>
1.238 albertel 980: </form>'.&Apache::loncommon::end_page();
1.171 albertel 981: &Apache::lonxml::add_messages(\$result);
1.145 albertel 982: $request->print($result);
983: }
984: return '';
1.47 albertel 985: }
1.189 albertel 986:
1.301 jms 987: #
988: # Render the page in whatever target desired.
989: #
1.41 albertel 990: sub renderpage {
1.213 albertel 991: my ($request,$file,$targets,$return_string) = @_;
1.52 albertel 992:
1.211 albertel 993: my @targets = @{$targets || [&get_target()]};
1.204 albertel 994: &Apache::lonhomework::showhashsubset(\%env,'form.');
1.145 albertel 995: &Apache::lonxml::debug("Running targets ".join(':',@targets));
1.268 albertel 996:
1.171 albertel 997: my $overall_result;
1.145 albertel 998: foreach my $target (@targets) {
1.183 albertel 999: # FIXME need to do something intelligent when a problem goes
1000: # from viewable to not viewable due to map conditions
1001: #&setuppermissions();
1002: #if ( $Apache::lonhomework::browse ne '2'
1003: # && $Apache::lonhomework::browse ne 'F' ) {
1004: # $request->print(" You most likely shouldn't see me.");
1005: #}
1.145 albertel 1006: #my $t0 = [&gettimeofday()];
1.211 albertel 1007: my $output=1;
1008: if ($target eq 'no_output_web') {
1009: $target = 'web'; $output=0;
1010: }
1.145 albertel 1011: my $problem=&Apache::lonnet::getfile($file);
1.222 albertel 1012: my $result;
1.145 albertel 1013: if ($problem eq -1) {
1.260 albertel 1014: $problem='';
1.222 albertel 1015: my $filename=(split('/',$file))[-1];
1.260 albertel 1016: my $error =
1017: "<b> ".&mt('Unable to find [_1]',
1.305 bisitz 1018: '<span class="LC_filename">'.$filename.'</span>')
1.260 albertel 1019: ."</b>";
1020: $result.=
1021: &Apache::loncommon::simple_error_page($request,'Not available',
1022: $error);
1023: return;
1.145 albertel 1024: }
1.52 albertel 1025:
1.145 albertel 1026: my %mystyle;
1027: if ($target eq 'analyze') { %Apache::lonhomework::analyze=(); }
1028: if ($target eq 'answer') { &showhash(%Apache::lonhomework::history); }
1.204 albertel 1029: if ($target eq 'web') {&Apache::lonhomework::showhashsubset(\%env,'^form');}
1.145 albertel 1030:
1031: &Apache::lonxml::debug("Should be parsing now");
1.222 albertel 1032: $result .= &Apache::lonxml::xmlparse($request, $target, $problem,
1033: &setup_vars($target),%mystyle);
1.273 albertel 1034: &finished_parsing();
1.214 albertel 1035: if (!$output) { $result = ''; }
1.145 albertel 1036: #$request->print("Result follows:");
1037: if ($target eq 'modified') {
1038: &handle_save_or_undo($request,\$problem,\$result);
1039: } else {
1040: if ($target eq 'analyze') {
1041: $result=&Apache::lonnet::hashref2str(\%Apache::lonhomework::analyze);
1042: undef(%Apache::lonhomework::analyze);
1043: }
1044: #my $td=&tv_interval($t0);
1045: #if ( $Apache::lonxml::debug) {
1046: #$result =~ s:</body>::;
1047: #$result.="<br />Spent $td seconds processing target $target\n</body>";
1048: #}
1.171 albertel 1049: # $request->print($result);
1050: $overall_result.=$result;
1051: # $request->rflush();
1.145 albertel 1052: }
1053: #$request->print(":Result ends");
1054: #my $td=&tv_interval($t0);
1.52 albertel 1055: }
1.213 albertel 1056: if (!$return_string) {
1057: &Apache::lonxml::add_messages(\$overall_result);
1058: $request->print($overall_result);
1059: $request->rflush();
1060: } else {
1061: return $overall_result;
1062: }
1.41 albertel 1063: }
1064:
1.273 albertel 1065: sub finished_parsing {
1066: undef($Apache::lonhomework::parsing_a_problem);
1067: undef($Apache::lonhomework::parsing_a_task);
1068: }
1069:
1.42 albertel 1070: sub get_template_list {
1.282 albertel 1071: my ($extension) = @_;
1.145 albertel 1072: my $result;
1073: my @allnames;
1074: &Apache::lonxml::debug("Looking for :$extension:");
1.282 albertel 1075: my $glob_extension = $extension;
1076: if ($extension eq 'survey' || $extension eq 'exam') {
1077: $glob_extension = 'problem';
1078: }
1079: my @files = glob($Apache::lonnet::perlvar{'lonIncludes'}.
1080: '/templates/*.'.$glob_extension);
1.292 www 1081: @files = map {[$_,&mt(&Apache::lonnet::metadata($_, 'title')),
1082: (&Apache::lonnet::metadata($_, 'category')?&mt(&Apache::lonnet::metadata($_, 'category')):&mt('Miscellaneous')),
1083: &mt(&Apache::lonnet::metadata($_, 'help'))]} (@files);
1084: @files = sort {$a->[2].$a->[1] cmp $b->[2].$b->[1]} (@files);
1.287 raeburn 1085: my ($midpoint,$seconddiv,$numfiles);
1086: $numfiles = 0;
1087: foreach my $file (@files) {
1088: next if ($file->[1] !~ /\S/);
1089: $numfiles ++;
1090: }
1091: if ($numfiles > 0) {
1092: $result = '<div class="LC_left_float">';
1093: $midpoint = int($numfiles/2);
1094: if ($numfiles%2) {
1095: $midpoint ++;
1096: }
1097: }
1098: my $count = 0;
1.292 www 1099: my $currentcategory='';
1.314 bisitz 1100: my $first = 1;
1.282 albertel 1101: foreach my $file (@files) {
1102: next if ($file->[1] !~ /\S/);
1.292 www 1103: if ($file->[2] ne $currentcategory) {
1104: $currentcategory=$file->[2];
1105: if ((!$seconddiv) && ($count >= $midpoint)) {
1.314 bisitz 1106: $result .= '</div></div>'."\n".'<div class="LC_left_float">'."\n";
1.292 www 1107: $seconddiv = 1;
1.314 bisitz 1108: } elsif (!$first) {
1109: $result.='</div>'."\n";
1110: } else {
1111: $first = 0;
1.292 www 1112: }
1.314 bisitz 1113: $result.= '<div class="LC_Box">'."\n"
1114: .'<h3 class="LC_hcell">'.$currentcategory.'</h3>'."\n";
1.293 www 1115: $count++;
1.292 www 1116: }
1.282 albertel 1117: $result .=
1118: '<label><input type="radio" name="template" value="'.$file->[0].'" />'.
1.292 www 1119: $file->[1].'</label>';
1120: if ($file->[3]) {
1121: $result.=&Apache::loncommon::help_open_topic($file->[3]);
1122: }
1123: my $filename=$file->[0];
1124: $filename=~s/^\/home\/httpd\/html//;
1.314 bisitz 1125: $result.=' <span class="LC_fontsize_small">'
1.315 droeschl 1126: .'<a href="'.$filename.'?inhibitmenu=yes" target="sample">'.&mt('Example').'</a>'
1.314 bisitz 1127: .'</span><br />'."\n";
1.287 raeburn 1128: $count ++;
1129: }
1130: if ($numfiles > 0) {
1.314 bisitz 1131: $result .= '</div></div>'."\n".'<div class="LC_clear_float_footer"></div>'."\n";
1.42 albertel 1132: }
1.145 albertel 1133: return $result;
1.42 albertel 1134: }
1135:
1136: sub newproblem {
1.65 matthew 1137: my ($request) = @_;
1.282 albertel 1138:
1139: if ($env{'form.template'}) {
1140: my $file = $env{'form.template'};
1.65 matthew 1141: my $dest = &Apache::lonnet::filelocation("",$request->uri);
1.282 albertel 1142: &File::Copy::copy($file,$dest);
1.65 matthew 1143: &renderpage($request,$dest);
1.282 albertel 1144: return;
1145: }
1146:
1147: my ($extension) = ($request->uri =~ m/\.(\w+)$/);
1148: &Apache::lonxml::debug("Looking for :$extension:");
1149: my $templatelist=&get_template_list($extension);
1150: if ($env{'form.newfile'} && !$templatelist) {
1151: # no templates found
1.131 albertel 1152: my $templatefilename =
1.258 albertel 1153: $request->dir_config('lonIncludes').'/templates/blank.'.$extension;
1.131 albertel 1154: &Apache::lonxml::debug("$templatefilename");
1155: my $dest = &Apache::lonnet::filelocation("",$request->uri);
1.282 albertel 1156: &File::Copy::copy($templatefilename,$dest);
1.131 albertel 1157: &renderpage($request,$dest);
1.85 albertel 1158: } else {
1.176 albertel 1159: my $url=&HTML::Entities::encode($request->uri,'<>&"');
1160: my $shownurl=$url;
1.157 albertel 1161: $shownurl=~s-^/~-/priv/-;
1.65 matthew 1162: my $dest = &Apache::lonnet::filelocation("",$request->uri);
1.128 albertel 1163: my $errormsg;
1.85 albertel 1164: my $instructions;
1.312 bisitz 1165: my $brcrum = [{'href' => &Apache::loncommon::authorspace(),
1166: 'text' => 'Construction Space'},
1167: {'href' => '',
1168: 'text' => "Create New $extension"}];
1.240 albertel 1169: my $start_page =
1.312 bisitz 1170: &Apache::loncommon::start_page("Create New $extension",
1171: undef,
1172: {'bread_crumbs' => $brcrum,});
1.311 bisitz 1173: $request->print(
1174: $start_page
1175: .&Apache::loncommon::head_subbox(
1176: &Apache::loncommon::CSTR_pageheader())
1177: .'<h1>'.&mt("Creating a new $extension resource.")."</h1>
1.128 albertel 1178: $errormsg
1.258 albertel 1179: ".&mt("The requested file [_1] currently does not exist.",
1.314 bisitz 1180: '<span class="LC_filename">'.$shownurl.'</span>').'
1181: <p class="LC_info">
1182: '.&mt("To create a new $extension, select a template from the".
1183: " list below. Then click on the \"Create $extension\" button.").'
1184: </p><div><form action="'.$url.'" method="post">');
1.258 albertel 1185:
1.85 albertel 1186: if (defined($templatelist)) {
1.282 albertel 1187: $request->print($templatelist);
1.85 albertel 1188: }
1.282 albertel 1189: $request->print('<br /><input type="submit" name="newfile" value="'.
1190: &mt("Create $extension").'" />');
1.314 bisitz 1191: $request->print('</form></div>'.&Apache::loncommon::end_page());
1.65 matthew 1192: }
1.282 albertel 1193: return;
1.42 albertel 1194: }
1195:
1.268 albertel 1196: sub update_construct_style {
1197: if ($env{'request.state'} eq "construct"
1.289 raeburn 1198: && $env{'form.problemmode'} eq 'view'
1.268 albertel 1199: && defined($env{'form.submitted'})
1200: && !defined($env{'form.resetdata'})
1201: && !defined($env{'form.newrandomization'})) {
1202: if ((!$env{'form.style_file'} && $env{'construct.style'})
1203: ||$env{'form.clear_style_file'}) {
1.303 raeburn 1204: &Apache::lonnet::delenv('construct.style');
1.268 albertel 1205: } elsif ($env{'form.style_file'}
1206: && $env{'construct.style'} ne $env{'form.style_file'}) {
1.291 raeburn 1207: &Apache::lonnet::appenv({'construct.style' =>
1208: $env{'form.style_file'}});
1.268 albertel 1209: }
1210: }
1211: }
1212:
1213:
1.41 albertel 1214: sub handler {
1.145 albertel 1215: #my $t0 = [&gettimeofday()];
1216: my $request=$_[0];
1.223 albertel 1217: $Apache::lonxml::request=$request;
1.204 albertel 1218: $Apache::lonxml::debug=$env{'user.debug'};
1219: $env{'request.uri'}=$request->uri;
1.180 albertel 1220: &setuppermissions();
1.193 albertel 1221:
1.145 albertel 1222: my $file=&Apache::lonnet::filelocation("",$request->uri);
1223:
1224: #check if we know where we are
1.204 albertel 1225: if ($env{'request.course.fn'} && !&Apache::lonnet::symbread()) {
1.145 albertel 1226: # if we are browsing we might not be able to know where we are
1.173 albertel 1227: if ($Apache::lonhomework::browse ne 'F' &&
1.204 albertel 1228: $env{'request.state'} ne "construct") {
1.145 albertel 1229: #should know where we are, so ask
1.253 albertel 1230: &unset_permissions();
1231: $request->internal_redirect('/adm/ambiguous');
1232: return OK;
1.145 albertel 1233: }
1234: }
1.253 albertel 1235: if (&setupheader($request)) {
1236: &unset_permissions();
1237: return OK;
1238: }
1.244 albertel 1239: &Apache::lonxml::debug("Permissions:$Apache::lonhomework::browse:$Apache::lonhomework::viewgrades:$Apache::lonhomework::modifygrades:$Apache::lonhomework::queuegrade");
1.204 albertel 1240: &Apache::lonxml::debug("Problem Mode ".$env{'form.problemmode'});
1.261 albertel 1241: my ($symb) = &Apache::lonnet::whichuser();
1.145 albertel 1242: &Apache::lonxml::debug('symb is '.$symb);
1.204 albertel 1243: if ($env{'request.state'} eq "construct") {
1.145 albertel 1244: if ( -e $file ) {
1245: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
1246: ['problemmode']);
1.204 albertel 1247: if (!(defined $env{'form.problemmode'})) {
1.145 albertel 1248: #first visit to problem in construction space
1.289 raeburn 1249: $env{'form.problemmode'}= 'view';
1.145 albertel 1250: &renderpage($request,$file);
1.323 www 1251: } elsif (($env{'form.problemmode'} eq 'editxml') ||
1252: ($env{'form.problemmode'} eq 'saveeditxml') ||
1253: ($env{'form.problemmode'} eq 'saveviewxml') ||
1254: ($env{'form.problemmode'} eq 'undoxml')) {
1.145 albertel 1255: &editxmlmode($request,$file);
1.289 raeburn 1256: } elsif ($env{'form.problemmode'} eq 'calcanswers') {
1.145 albertel 1257: &analyze($request,$file);
1258: } else {
1.268 albertel 1259: &update_construct_style();
1.145 albertel 1260: &renderpage($request,$file);
1261: }
1262: } else {
1263: # requested file doesn't exist in contruction space
1264: &newproblem($request);
1265: }
1266: } else {
1267: # just render the page normally outside of construction space
1268: &Apache::lonxml::debug("not construct");
1.52 albertel 1269: &renderpage($request,$file);
1.41 albertel 1270: }
1.145 albertel 1271: #my $td=&tv_interval($t0);
1272: #&Apache::lonxml::debug("Spent $td seconds processing");
1273: # always turn off debug messages
1274: $Apache::lonxml::debug=0;
1.253 albertel 1275: &unset_permissions();
1.145 albertel 1276: return OK;
1.52 albertel 1277:
1.1 albertel 1278: }
1279:
1280: 1;
1281: __END__
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