Annotation of loncom/homework/lonhomework.pm, revision 1.299
1.63 albertel 1: # The LearningOnline Network with CAPA
1.52 albertel 2: # The LON-CAPA Homework handler
1.63 albertel 3: #
1.299 ! jms 4: # $Id: lonhomework.pm,v 1.298 2008/10/07 10:13:06 foxr 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();
1.169 albertel 50: use Apache::drawimage();
1.26 www 51: use Apache::Constants qw(:common);
1.83 albertel 52: use Apache::loncommon();
1.146 albertel 53: use Apache::lonlocal;
1.179 albertel 54: use Time::HiRes qw( gettimeofday tv_interval );
1.282 albertel 55: use HTML::Entities();
56: use File::Copy();
1.188 foxr 57:
1.189 albertel 58: # FIXME - improve commenting
1.188 foxr 59:
1.43 albertel 60:
1.69 harris41 61: BEGIN {
1.145 albertel 62: &Apache::lonxml::register_insert();
1.43 albertel 63: }
64:
1.188 foxr 65:
1.276 foxr 66: =pod
67:
68: =item set_bubble_lines()
69:
70: Called at analysis time to set the bubble lines
71: hash for the problem.. This should be called in the
72: end_problemtype tag in analysis mode.
73:
74: We fetch the hash of part id counters from lonxml
75: and push them into analyze:{part_id.bubble_lines}.
76:
77: =cut
78:
79: sub set_bubble_lines {
80: my %bubble_counters = &Apache::lonxml::get_bubble_line_hash();
81:
82: foreach my $key (keys(%bubble_counters)) {
83: $Apache::lonhomework::analyze{"$key.bubble_lines"} =
84: $bubble_counters{"$key"};
85: }
86: }
87:
1.299 ! jms 88: =pod
! 89:
! 90: =item get_target()
! 91:
! 92: Decides what targets to render for.
! 93: Implicit inputs:
! 94: Various session environment variables:
! 95: request.state - published - is a /res/ resource
! 96: uploaded - is a /uploaded/ resource
! 97: contruct - is a /priv/ resource
! 98: form.grade_target - a form parameter requesting a specific target
! 99:
! 100: =cut
! 101:
1.5 albertel 102: sub get_target {
1.204 albertel 103: &Apache::lonxml::debug("request.state = $env{'request.state'}");
104: if( defined($env{'form.grade_target'})) {
105: &Apache::lonxml::debug("form.grade_target= $env{'form.grade_target'}");
1.188 foxr 106: } else {
1.189 albertel 107: &Apache::lonxml::debug("form.grade_target <undefined>");
1.188 foxr 108: }
1.204 albertel 109: if (($env{'request.state'} eq "published") ||
110: ($env{'request.state'} eq "uploaded")) {
111: if ( defined($env{'form.grade_target'} )
112: && ($env{'form.grade_target'} eq 'tex')) {
113: return ($env{'form.grade_target'});
114: } elsif ( defined($env{'form.grade_target'} )
1.145 albertel 115: && ($Apache::lonhomework::viewgrades eq 'F' )) {
1.207 albertel 116: return ($env{'form.grade_target'});
1.244 albertel 117: } elsif ( $env{'form.grade_target'} eq 'webgrade'
118: && ($Apache::lonhomework::queuegrade eq 'F' )) {
119: return ($env{'form.grade_target'});
1.207 albertel 120: }
121: if ($env{'form.webgrade'} &&
1.244 albertel 122: ($Apache::lonhomework::modifygrades eq 'F'
123: || $Apache::lonhomework::queuegrade eq 'F' )) {
1.207 albertel 124: return ('grade','webgrade');
1.145 albertel 125: }
1.204 albertel 126: if ( defined($env{'form.submitted'}) &&
127: ( !defined($env{'form.newrandomization'}))) {
1.217 albertel 128: return ('grade', 'web');
1.145 albertel 129: } else {
1.217 albertel 130: return ('web');
1.145 albertel 131: }
1.204 albertel 132: } elsif ($env{'request.state'} eq "construct") {
133: if ( defined($env{'form.grade_target'}) ) {
134: return ($env{'form.grade_target'});
1.145 albertel 135: }
1.204 albertel 136: if ( defined($env{'form.preview'})) {
137: if ( defined($env{'form.submitted'})) {
1.145 albertel 138: return ('grade', 'web');
139: } else {
140: return ('web');
141: }
142: } else {
1.267 albertel 143: if ($env{'form.problemstate'} eq 'WEB_GRADE') {
144: #$env{'form.webgrade'} = 'yes';
145: return ('grade','webgrade','answer');
1.289 raeburn 146: } elsif (($env{'form.problemmode'} eq 'view') ||
147: ($env{'form.problemmode'} eq 'discard')) {
1.204 albertel 148: if ( defined($env{'form.submitted'}) &&
149: (!defined($env{'form.resetdata'})) &&
150: (!defined($env{'form.newrandomization'}))) {
1.145 albertel 151: return ('grade', 'web','answer');
152: } else {
153: return ('web','answer');
154: }
1.289 raeburn 155: } elsif ($env{'form.problemmode'} eq 'edit') {
1.204 albertel 156: if ( $env{'form.submitted'} eq 'edit' ) {
1.289 raeburn 157: if ( $env{'form.submitbutton'} eq &mt('Save and View') ) {
1.145 albertel 158: return ('modified','web','answer');
159: } else {
1.211 albertel 160: return ('modified','no_output_web','edit');
1.145 albertel 161: }
162: } else {
1.211 albertel 163: return ('no_output_web','edit');
1.145 albertel 164: }
165: } else {
166: return ('web');
167: }
168: }
1.15 albertel 169: }
1.145 albertel 170: return ();
1.5 albertel 171: }
172:
1.3 albertel 173: sub setup_vars {
1.145 albertel 174: my ($target) = @_;
175: return ';'
1.11 albertel 176: # return ';$external::target='.$target.';';
1.2 albertel 177: }
178:
1.36 albertel 179: sub createmenu {
1.145 albertel 180: my ($which,$request)=@_;
181: if ($which eq 'grade') {
182: $request->print('<script language="JavaScript">
1.91 albertel 183: hwkmenu=window.open("/res/adm/pages/homeworkmenu.html","homeworkremote",
1.52 albertel 184: "height=350,width=150,menubar=no");
185: </script>');
1.145 albertel 186: }
1.36 albertel 187: }
188:
1.200 albertel 189: sub proctor_checked_in {
1.226 albertel 190: my ($slot_name,$slot,$type)=@_;
191: my @possible_proctors=split(",",$slot->{'proctor'});
192:
1.248 albertel 193: return 1 if (!@possible_proctors);
194:
1.226 albertel 195: my $key;
196: if ($type eq 'Task') {
1.230 albertel 197: my $version=$Apache::lonhomework::history{'resource.0.version'};
198: $key ="resource.$version.0.checkedin";
1.226 albertel 199: } elsif ($type eq 'problem') {
200: $key ='resource.0.checkedin';
201: }
1.249 albertel 202: # backward compatability, used to be username@domain,
203: # now is username:domain
204: my $who = $Apache::lonhomework::history{$key};
205: if ($who !~ /:/) {
206: $who =~ tr/@/:/;
207: }
1.226 albertel 208: foreach my $possible (@possible_proctors) {
1.249 albertel 209: if ($who eq $possible
1.226 albertel 210: && $Apache::lonhomework::history{$key.'.slot'} eq $slot_name) {
1.202 albertel 211: return 1;
212: }
213: }
1.226 albertel 214:
1.200 albertel 215: return 0;
216: }
217:
1.226 albertel 218: sub check_slot_access {
219: my ($id,$type)=@_;
220:
1.207 albertel 221: # does it pass normal muster
1.226 albertel 222: my ($status,$datemsg)=&check_access($id);
223:
1.252 albertel 224: my $useslots = &Apache::lonnet::EXT("resource.0.useslots");
1.251 albertel 225: if ($useslots ne 'resource' && $useslots ne 'map'
226: && $useslots ne 'map_map') {
1.226 albertel 227: return ($status,$datemsg);
228: }
229:
1.200 albertel 230: if ($status eq 'SHOW_ANSWER' ||
231: $status eq 'CLOSED' ||
232: $status eq 'INVALID_ACCESS' ||
233: $status eq 'UNAVAILABLE') {
234: return ($status,$datemsg);
235: }
1.204 albertel 236: if ($env{'request.state'} eq "construct") {
1.203 albertel 237: return ($status,$datemsg);
238: }
1.226 albertel 239:
240: if ($type eq 'Task') {
241: my $version=$Apache::lonhomework::history{'resource.version'};
1.230 albertel 242: if ($Apache::lonhomework::history{"resource.$version.0.checkedin"} &&
243: $Apache::lonhomework::history{"resource.$version.0.status"} eq 'pass') {
1.226 albertel 244: return ('SHOW_ANSWER');
245: }
1.207 albertel 246: }
1.226 albertel 247:
1.288 raeburn 248: my $availablestudent = &Apache::lonnet::EXT("resource.0.availablestudent");
249: my $available = &Apache::lonnet::EXT("resource.0.available");
250: my @slots= (split(':',$availablestudent),split(':',$available));
1.210 albertel 251:
1.200 albertel 252: # if (!@slots) {
253: # return ($status,$datemsg);
254: # }
255: my $slotstatus='NOT_IN_A_SLOT';
1.206 albertel 256: my ($returned_slot,$slot_name);
1.210 albertel 257: foreach my $slot (@slots) {
1.241 albertel 258: $slot =~ s/(^\s*|\s*$)//g;
1.201 albertel 259: &Apache::lonxml::debug("getting $slot");
1.200 albertel 260: my %slot=&Apache::lonnet::get_slot($slot);
1.201 albertel 261: &Apache::lonhomework::showhash(%slot);
1.200 albertel 262: if ($slot{'starttime'} < time &&
263: $slot{'endtime'} > time &&
1.297 raeburn 264: &Apache::loncommon::check_ip_acc($slot{'ip'})) {
1.202 albertel 265: &Apache::lonxml::debug("$slot is good");
266: $slotstatus='NEEDS_CHECKIN';
267: $returned_slot=\%slot;
1.206 albertel 268: $slot_name=$slot;
1.200 albertel 269: last;
270: }
271: }
1.202 albertel 272: if ($slotstatus eq 'NEEDS_CHECKIN' &&
1.226 albertel 273: &proctor_checked_in($slot_name,$returned_slot,$type)) {
1.202 albertel 274: &Apache::lonxml::debug("protoctor checked in");
1.200 albertel 275: $slotstatus='CAN_ANSWER';
276: }
1.226 albertel 277:
1.235 albertel 278: my ($is_correct,$got_grade,$checkedin);
1.226 albertel 279: if ($type eq 'Task') {
1.230 albertel 280: my $version=$Apache::lonhomework::history{'resource.0.version'};
1.231 albertel 281: $got_grade =
282: ($Apache::lonhomework::history{"resource.$version.0.status"}
283: =~ /^(?:pass|fail)$/);
1.235 albertel 284: $is_correct =
285: ($Apache::lonhomework::history{"resource.$version.0.status"} eq 'pass'
286: || $Apache::lonhomework::history{"resource.0.solved"} =~ /^correct_/ );
1.226 albertel 287: $checkedin =
1.230 albertel 288: $Apache::lonhomework::history{"resource.$version.0.checkedin"};
1.226 albertel 289: } elsif ($type eq 'problem') {
1.252 albertel 290: $got_grade = 1;
291: $checkedin = $Apache::lonhomework::history{"resource.0.checkedin"};
292: $is_correct =
293: ($Apache::lonhomework::history{"resource.0.solved"} =~/^correct_/);
1.226 albertel 294: }
295:
1.235 albertel 296: &Apache::lonxml::debug(" slot is $slotstatus checkedin ($checkedin) got_grade ($got_grade) is_correct ($is_correct)");
297:
1.243 albertel 298: # no slot is currently open, and has been checked in for this version
299: # but hasn't got a grade, therefore must be awaiting a grade
300: if (!defined($slot_name)
301: && $checkedin
1.236 albertel 302: && !$got_grade) {
303: return ('WAITING_FOR_GRADE');
304: }
305:
1.252 albertel 306: # no slot is currently open, and has been checked in for this version
307: # previous slot is therefore CLOSED, so therefore the problem is
308: if (!defined($slot_name)
309: && $checkedin
310: && $type eq 'problem') {
311: return ('CLOSED',$datemsg);
312: }
313:
1.226 albertel 314: if ($slotstatus eq 'NOT_IN_A_SLOT'
315: && $checkedin ) {
316:
1.231 albertel 317: if ($got_grade) {
1.209 albertel 318: return ('SHOW_ANSWER');
319: } else {
320: return ('WAITING_FOR_GRADE');
321: }
1.226 albertel 322:
1.207 albertel 323: }
1.255 albertel 324:
1.235 albertel 325: if ( $is_correct) {
1.255 albertel 326: if ($type eq 'problem') {
327: return ($status);
328: }
1.235 albertel 329: return ('SHOW_ANSWER');
330: }
1.255 albertel 331:
1.225 albertel 332: if ( $status eq 'CANNOT_ANSWER' &&
333: ($slotstatus ne 'NEEDS_CHECKIN' && $slotstatus ne 'NOT_IN_A_SLOT')) {
334: return ($status,$datemsg);
335: }
336:
1.206 albertel 337: return ($slotstatus,$datemsg,$slot_name,$returned_slot);
1.198 albertel 338: }
1.200 albertel 339:
1.299 ! jms 340:
! 341: =pod
! 342:
! 343: =item check_access()
! 344:
! 345: JB, 9/24/2002: Any changes in this function may require a change
! 346: in lonnavmaps::resource::getDateStatus.
! 347:
! 348: =cut
! 349:
1.53 www 350: sub check_access {
1.145 albertel 351: my ($id) = @_;
352: my $date ='';
353: my $status;
354: my $datemsg = '';
355: my $lastdate = '';
356: my $type;
357: my $passed;
358:
1.204 albertel 359: if ($env{'request.state'} eq "construct") {
360: if ($env{'form.problemstate'}) {
361: if ($env{'form.problemstate'} =~ /^CANNOT_ANSWER/) {
1.277 albertel 362: if ( ! ($env{'form.problemstate'} eq 'CANNOT_ANSWER_correct'
363: && &hide_problem_status())) {
1.168 albertel 364: return ('CANNOT_ANSWER',
1.174 www 365: &mt('is in this state due to author settings.'));
1.167 albertel 366: }
1.165 albertel 367: } else {
1.204 albertel 368: return ($env{'form.problemstate'},
1.174 www 369: &mt('is in this state due to author settings.'));
1.165 albertel 370: }
371: }
1.145 albertel 372: &Apache::lonxml::debug("in construction ignoring dates");
373: $status='CAN_ANSWER';
1.146 albertel 374: $datemsg=&mt('is in under construction');
1.163 albertel 375: # return ($status,$datemsg);
1.145 albertel 376: }
377:
378: &Apache::lonxml::debug("checking for part :$id:");
379: &Apache::lonxml::debug("time:".time);
1.152 albertel 380:
1.261 albertel 381: my ($symb)=&Apache::lonnet::whichuser();
1.212 albertel 382: &Apache::lonxml::debug("symb:".$symb);
383: #if ($env{'request.state'} ne "construct" && $symb ne '') {
1.204 albertel 384: if ($env{'request.state'} ne "construct") {
1.288 raeburn 385: my $idacc = &Apache::lonnet::EXT("resource.$id.acc");
1.297 raeburn 386: my $allowed=&Apache::loncommon::check_ip_acc($idacc);
1.163 albertel 387: if (!$allowed && ($Apache::lonhomework::browse ne 'F')) {
388: $status='INVALID_ACCESS';
389: $date=&mt("can not be accessed from your location.");
1.145 albertel 390: return($status,$date);
391: }
1.163 albertel 392:
1.226 albertel 393: foreach my $temp ("opendate","duedate","answerdate") {
1.163 albertel 394: $lastdate = $date;
1.247 albertel 395: if ($temp eq 'duedate') {
396: $date = &due_date($id);
397: } else {
398: $date = &Apache::lonnet::EXT("resource.$id.$temp");
399: }
400:
1.163 albertel 401: my $thistype = &Apache::lonnet::EXT("resource.$id.$temp.type");
402: if ($thistype =~ /^(con_lost|no_such_host)/ ||
403: $date =~ /^(con_lost|no_such_host)/) {
404: $status='UNAVAILABLE';
405: $date=&mt("may open later.");
406: return($status,$date);
407: }
408: if ($thistype eq 'date_interval') {
409: if ($temp eq 'opendate') {
410: $date=&Apache::lonnet::EXT("resource.$id.duedate")-$date;
411: }
412: if ($temp eq 'answerdate') {
413: $date=&Apache::lonnet::EXT("resource.$id.duedate")+$date;
414: }
1.145 albertel 415: }
1.163 albertel 416: &Apache::lonxml::debug("found :$date: for :$temp:");
417: if ($date eq '') {
418: $date = &mt("an unknown date"); $passed = 0;
419: } elsif ($date eq 'con_lost') {
420: $date = &mt("an indeterminate date"); $passed = 0;
421: } else {
422: if (time < $date) { $passed = 0; } else { $passed = 1; }
1.274 www 423: $date = &Apache::lonlocal::locallocaltime($date);
1.145 albertel 424: }
1.163 albertel 425: if (!$passed) { $type=$temp; last; }
1.145 albertel 426: }
1.163 albertel 427: &Apache::lonxml::debug("have :$type:$passed:");
428: if ($passed) {
429: $status='SHOW_ANSWER';
430: $datemsg=$date;
431: } elsif ($type eq 'opendate') {
432: $status='CLOSED';
433: $datemsg = &mt("will open on")." $date";
434: } elsif ($type eq 'duedate') {
435: $status='CAN_ANSWER';
436: $datemsg = &mt("is due at")." $date";
437: } elsif ($type eq 'answerdate') {
438: $status='CLOSED';
439: $datemsg = &mt("was due on")." $lastdate".&mt(", and answers will be available on")." $date";
1.145 albertel 440: }
441: }
1.212 albertel 442: if ($status eq 'CAN_ANSWER' ||
443: (($Apache::lonhomework::browse eq 'F') && ($status eq 'CLOSED'))) {
1.145 albertel 444: #check #tries, and if correct.
445: my $tries = $Apache::lonhomework::history{"resource.$id.tries"};
446: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
447: if ( $tries eq '' ) { $tries = '0'; }
1.164 albertel 448: if ( $maxtries eq '' &&
1.204 albertel 449: $env{'request.state'} ne 'construct') { $maxtries = '2'; }
1.164 albertel 450: if ($maxtries && $tries >= $maxtries) { $status = 'CANNOT_ANSWER'; }
1.145 albertel 451: # if (correct and show prob status) or excused then CANNOT_ANSWER
452: if(($Apache::lonhomework::history{"resource.$id.solved"}=~/^correct/
453: &&
1.277 albertel 454: &show_problem_status())
1.145 albertel 455: ||
456: $Apache::lonhomework::history{"resource.$id.solved"}=~/^excused/) {
457: $status = 'CANNOT_ANSWER';
458: }
1.285 albertel 459: if ($status eq 'CANNOT_ANSWER'
460: && &show_answer_problem_status()) {
461: $status = 'SHOW_ANSWER';
462: }
1.121 albertel 463: }
1.181 albertel 464: if ($status eq 'CAN_ANSWER' || $status eq 'CANNOT_ANSWER') {
1.286 albertel 465: my @interval=&Apache::lonnet::EXT("resource.$id.interval");
466: &Apache::lonxml::debug("looking for interval @interval");
467: if ($interval[0]) {
468: my $first_access=&Apache::lonnet::get_first_access($interval[1]);
1.177 albertel 469: &Apache::lonxml::debug("looking for accesstime $first_access");
470: if (!$first_access) {
471: $status='NOT_YET_VIEWED';
1.247 albertel 472: my $due_date = &due_date($id);
1.256 albertel 473: my $seconds_left = $due_date - time;
1.286 albertel 474: if ($seconds_left > $interval[0] || $due_date eq '') {
475: $seconds_left = $interval[0];
1.256 albertel 476: }
477: $datemsg=&seconds_to_human_length($seconds_left);
1.177 albertel 478: }
479: }
480: }
1.247 albertel 481:
1.133 albertel 482: #if (($status ne 'CLOSED') && ($Apache::lonhomework::type eq 'exam') &&
483: # (!$Apache::lonhomework::history{"resource.0.outtoken"})) {
484: # return ('UNCHECKEDOUT','needs to be checked out');
485: #}
1.54 www 486:
487:
1.145 albertel 488: &Apache::lonxml::debug("sending back :$status:$datemsg:");
489: if (($Apache::lonhomework::browse eq 'F') && ($status eq 'CLOSED')) {
490: &Apache::lonxml::debug("should be allowed to browse a resource when closed");
491: $status='CAN_ANSWER';
1.146 albertel 492: $datemsg=&mt('is closed but you are allowed to view it');
1.145 albertel 493: }
1.106 albertel 494:
1.145 albertel 495: return ($status,$datemsg);
1.20 albertel 496: }
1.299 ! jms 497:
! 498:
! 499: =pod
! 500:
! 501: =item due_date()
! 502:
! 503: this should work exactly like the copy in lonnavmaps.pm
! 504:
! 505: =cut
! 506:
1.246 albertel 507: sub due_date {
1.250 albertel 508: my ($part_id,$symb,$udom,$uname)=@_;
1.246 albertel 509: my $date;
1.286 albertel 510: my @interval= &Apache::lonnet::EXT("resource.$part_id.interval",$symb,
1.250 albertel 511: $udom,$uname);
1.286 albertel 512: &Apache::lonxml::debug("looking for interval $part_id $symb @interval");
1.250 albertel 513: my $due_date= &Apache::lonnet::EXT("resource.$part_id.duedate",$symb,
514: $udom,$uname);
1.247 albertel 515: &Apache::lonxml::debug("looking for due_date $part_id $symb $due_date");
1.286 albertel 516: if ($interval[0] =~ /\d+/) {
517: my $first_access=&Apache::lonnet::get_first_access($interval[1],$symb);
518: &Apache::lonxml::debug("looking for first_access $first_access ($interval[1])");
1.247 albertel 519: if (defined($first_access)) {
1.286 albertel 520: my $interval = $first_access+$interval[0];
1.283 albertel 521: $date = (!$due_date || $interval < $due_date) ? $interval
522: : $due_date;
1.247 albertel 523: } else {
524: $date = $due_date;
525: }
526: } else {
527: $date = $due_date;
1.246 albertel 528: }
529: return $date
530: }
531:
1.192 albertel 532: sub seconds_to_human_length {
533: my ($length)=@_;
534:
535: my $seconds=$length%60; $length=int($length/60);
536: my $minutes=$length%60; $length=int($length/60);
537: my $hours=$length%24; $length=int($length/24);
538: my $days=$length;
539:
540: my $timestr;
541: if ($days > 0) { $timestr.=&mt('[quant,_1,day]',$days); }
542: if ($hours > 0) { $timestr.=($timestr?", ":"").
543: &mt('[quant,_1,hour]',$hours); }
544: if ($minutes > 0) { $timestr.=($timestr?", ":"").
545: &mt('[quant,_1,minute]',$minutes); }
546: if ($seconds > 0) { $timestr.=($timestr?", ":"").
547: &mt('[quant,_1,second]',$seconds); }
548: return $timestr;
549: }
550:
1.41 albertel 551: sub showhash {
1.145 albertel 552: my (%hash) = @_;
553: &showhashsubset(\%hash,'.');
554: return '';
1.79 albertel 555: }
556:
1.106 albertel 557: sub showarray {
558: my ($array)=@_;
559: my $string="(";
560: foreach my $elm (@{ $array }) {
1.193 albertel 561: if (ref($elm) eq 'ARRAY') {
562: $string.=&showarray($elm);
563: } elsif (ref($elm) eq 'HASH') {
564: $string.= "HASH --- \n<br />";
565: $string.= &showhashsubset($elm,'.');
1.106 albertel 566: } else {
567: $string.="$elm,"
568: }
569: }
570: chop($string);
571: $string.=")";
572: return $string;
573: }
574:
1.79 albertel 575: sub showhashsubset {
1.145 albertel 576: my ($hash,$keyre) = @_;
577: my $resultkey;
578: foreach $resultkey (sort keys %$hash) {
1.193 albertel 579: if ($resultkey !~ /$keyre/) { next; }
580: if (ref($$hash{$resultkey}) eq 'ARRAY' ) {
581: &Apache::lonxml::debug("$resultkey ---- ".
582: &showarray($$hash{$resultkey}));
583: } elsif (ref($$hash{$resultkey}) eq 'HASH' ) {
584: &Apache::lonxml::debug("$resultkey ---- $$hash{$resultkey}");
585: &showhashsubset($$hash{$resultkey},'.');
586: } else {
587: &Apache::lonxml::debug("$resultkey ---- $$hash{$resultkey}");
1.145 albertel 588: }
589: }
590: &Apache::lonxml::debug("\n<br />restored values^</br>\n");
591: return '';
1.41 albertel 592: }
593:
594: sub setuppermissions {
1.204 albertel 595: $Apache::lonhomework::browse= &Apache::lonnet::allowed('bre',$env{'request.filename'});
596: my $viewgrades = &Apache::lonnet::allowed('vgr',$env{'request.course.id'});
1.145 albertel 597: if (! $viewgrades &&
1.204 albertel 598: exists($env{'request.course.sec'}) &&
599: $env{'request.course.sec'} !~ /^\s*$/) {
600: $viewgrades = &Apache::lonnet::allowed('vgr',$env{'request.course.id'}.
601: '/'.$env{'request.course.sec'});
1.145 albertel 602: }
1.244 albertel 603: $Apache::lonhomework::viewgrades = $viewgrades;
604:
1.185 albertel 605: if ($Apache::lonhomework::browse eq 'F' &&
1.204 albertel 606: $env{'form.devalidatecourseresdata'} eq 'on') {
1.261 albertel 607: my (undef,$courseid) = &Apache::lonnet::whichuser();
1.204 albertel 608: &Apache::lonnet::devalidatecourseresdata($env{"course.$courseid.num"},
609: $env{"course.$courseid.domain"});
1.185 albertel 610: }
1.244 albertel 611:
1.205 albertel 612: my $modifygrades = &Apache::lonnet::allowed('mgr',$env{'request.course.id'});
613: if (! $modifygrades &&
614: exists($env{'request.course.sec'}) &&
615: $env{'request.course.sec'} !~ /^\s*$/) {
616: $modifygrades =
617: &Apache::lonnet::allowed('mgr',$env{'request.course.id'}.
618: '/'.$env{'request.course.sec'});
619: }
620: $Apache::lonhomework::modifygrades = $modifygrades;
1.244 albertel 621:
622: my $queuegrade = &Apache::lonnet::allowed('mqg',$env{'request.course.id'});
623: if (! $queuegrade &&
624: exists($env{'request.course.sec'}) &&
625: $env{'request.course.sec'} !~ /^\s*$/) {
626: $queuegrade =
627: &Apache::lonnet::allowed('qgr',$env{'request.course.id'}.
628: '/'.$env{'request.course.sec'});
629: }
630: $Apache::lonhomework::queuegrade = $queuegrade;
1.205 albertel 631: return '';
1.41 albertel 632: }
633:
1.253 albertel 634: sub unset_permissions {
635: undef($Apache::lonhomework::queuegrade);
636: undef($Apache::lonhomework::modifygrades);
637: undef($Apache::lonhomework::viewgrades);
638: undef($Apache::lonhomework::browse);
639: }
640:
1.41 albertel 641: sub setupheader {
1.120 albertel 642: my $request=$_[0];
1.197 albertel 643: &Apache::loncommon::content_type($request,'text/html');
1.120 albertel 644: if (!$Apache::lonxml::debug && ($ENV{'REQUEST_METHOD'} eq 'GET')) {
645: &Apache::loncommon::no_cache($request);
646: }
1.196 albertel 647: # $request->set_last_modified(&Apache::lonnet::metadata($request->uri,
648: # 'lastrevisiondate'));
1.120 albertel 649: $request->send_http_header;
650: return OK if $request->header_only;
651: return ''
1.41 albertel 652: }
1.35 albertel 653:
1.47 albertel 654: sub handle_save_or_undo {
1.145 albertel 655: my ($request,$problem,$result) = @_;
656: my $file = &Apache::lonnet::filelocation("",$request->uri);
657: my $filebak =$file.".bak";
658: my $filetmp =$file.".tmp";
659: my $error=0;
1.204 albertel 660: if ($env{'form.Undo'} eq &mt('undo')) {
1.145 albertel 661: my $error=0;
1.284 albertel 662: if (!&File::Copy::copy($file,$filetmp)) { $error=1; }
663: if ((!$error) && (!&File::Copy::copy($filebak,$file))) { $error=1; }
664: if ((!$error) && (!&File::Copy::move($filetmp,$filebak))) { $error=1; }
1.145 albertel 665: if (!$error) {
1.266 albertel 666: &Apache::lonxml::info("<p><b>".
667: &mt("Undid changes, Switched [_1] and [_2]",
668: '<span class="LC_filename">'.$filebak.
669: '</span>',
670: '<span class="LC_filename">'.$file.
671: '</span>')."</b></p>");
1.145 albertel 672: } else {
1.266 albertel 673: &Apache::lonxml::info("<p><span class=\"LC_error\">".
674: &mt("Unable to undo, unable to switch [_1] and [_2]",
675: '<span class="LC_filename">'.
676: $filebak.'</span>',
677: '<span class="LC_filename">'.
678: $file.'</span>')."</span></p>");
1.145 albertel 679: $error=1;
680: }
1.52 albertel 681: } else {
1.262 banghart 682: &Apache::lonnet::correct_line_ends($result);
1.145 albertel 683: my $fs=Apache::File->new(">$filebak");
684: if (defined($fs)) {
685: print $fs $$problem;
686: } else {
1.266 albertel 687: &Apache::lonxml::info("<span class=\"LC_error\">".
688: &mt("Unable to make backup [_1]",
689: '<span class="LC_filename">'.
690: $filebak.'</span>')."</span>");
1.145 albertel 691: $error=2;
692: }
693: my $fh=Apache::File->new(">$file");
694: if (defined($fh)) {
695: print $fh $$result;
696: } else {
1.266 albertel 697: &Apache::lonxml::info('<span class="LC_error">'.
698: &mt("Unable to write to [_1]",
699: '<span class="LC_filename">'.
700: $file.'</span>').
701: '</span>');
1.145 albertel 702: $error|=4;
703: }
1.52 albertel 704: }
1.145 albertel 705: return $error;
1.64 albertel 706: }
707:
1.101 albertel 708: sub analyze_header {
709: my ($request) = @_;
1.289 raeburn 710: my $js = &Apache::structuretags::setmode_javascript();
1.238 albertel 711: my $result =
1.289 raeburn 712: &Apache::loncommon::start_page('Analyzing a problem',$js);
1.240 albertel 713:
1.238 albertel 714: $result .=
715: &Apache::lonxml::message_location().'
1.101 albertel 716: <form name="lonhomework" method="POST" action="'.
1.204 albertel 717: &HTML::Entities::encode($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'".')" />
1.278 albertel 726: <hr class="LC_edit_problem_divide" />
1.289 raeburn 727: <input type="button" name="submitmode" value="'.&mt("View").'" '.
728: 'onclick="javascript:setmode(this.form,'."'view'".')" />
1.278 albertel 729: <hr class="LC_edit_problem_divide" />
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'));
1.278 albertel 803: $request->print('<hr class="LC_edit_problem_divide" />'.&mt('List of possible answers').': ');
1.134 albertel 804: foreach my $part (sort(keys(%allparts))) {
1.109 albertel 805: if (defined(@{ $overall{$part.'.answer'} })) {
1.263 albertel 806: for (my $i=0;$i<scalar(@{ $overall{$part.'.answer'} });$i++) {
807: my $num_cols=scalar(@{ $overall{$part.'.answer'}[$i][0] });
808: $request->print('<table class="thinborder"><tr><th colspan="'.($num_cols+1).'">'.&mt('Part').' '.$part);
809: if (scalar(@{ $overall{$part.'.answer'} }) > 1) {
810: $request->print(&mt(' Answer [_1]',$i+1));
811: }
812: $request->print('</th></tr>');
813: my %frequency;
814: foreach my $answer (sort {$a->[0] <=> $b->[0]} (@{ $overall{$part.'.answer'}[$i] })) {
815: $frequency{join("\0",@{ $answer })}++;
816: }
817: $request->print('<tr><th colspan="'.($num_cols).'">'.&mt('Answer').'</th><th>'.&mt('Frequency').'<br />('
818: .&mt('click for example').')</th></tr>');
819: foreach my $answer (sort {(split("\0",$a))[0] <=> (split("\0",$b))[0]} (keys(%frequency))) {
820: $request->print('<tr><td class="center">'.
821: join('</td><td class="center">',split("\0",$answer)).
822: '</td><td class="center"><a href="'.$request->uri.'?rndseed='.$seedexample{join("\0",$part,$i,$answer)}.'">'.$frequency{$answer}.
823: '</a></td></tr>');
824: }
825: $request->print('</table>');
1.109 albertel 826: }
827: } else {
1.162 albertel 828: $request->print('<p>'.&mt('Response').' '.$part.' '.
1.146 albertel 829: &mt('is not analyzable at this time').'</p>');
1.101 albertel 830: }
831: }
1.130 albertel 832: if (scalar(keys(%allparts)) == 0 ) {
1.215 raeburn 833: $request->print('<p>'.&mt('Found no analyzable responses in this problem, currently only Numerical, Formula and String response styles are supported.').'</p>');
1.130 albertel 834: }
1.114 albertel 835: &Apache::lonhtmlcommon::Close_PrgWin($request,\%prog_state);
1.109 albertel 836: &analyze_footer($request);
1.101 albertel 837: &Apache::lonhomework::showhash(%overall);
838: return $result;
1.74 albertel 839: }
840:
1.277 albertel 841: {
842: my $show_problem_status;
843: sub reset_show_problem_status {
844: undef($show_problem_status);
845: }
846:
847: sub set_show_problem_status {
848: my ($new_status) = @_;
849: $show_problem_status = lc($new_status);
850: }
851:
852: sub hide_problem_status {
853: return ($show_problem_status eq 'no'
854: || $show_problem_status eq 'no_feedback_ever');
855: }
856:
857: sub show_problem_status {
858: return ($show_problem_status eq 'yes'
1.285 albertel 859: || $show_problem_status eq 'answer'
1.277 albertel 860: || $show_problem_status eq '');
861: }
862:
863: sub show_some_problem_status {
864: return ($show_problem_status eq 'no');
865: }
866:
867: sub show_no_problem_status {
868: return ($show_problem_status eq 'no_feedback_ever');
869: }
1.285 albertel 870:
871: sub show_answer_problem_status {
872: return ($show_problem_status eq 'answer');
873: }
1.277 albertel 874: }
875:
1.64 albertel 876: sub editxmlmode {
1.145 albertel 877: my ($request,$file) = @_;
878: my $result;
879: my $problem=&Apache::lonnet::getfile($file);
880: if ($problem eq -1) {
1.146 albertel 881: &Apache::lonxml::error("<b> ".&mt('Unable to find').
882: " <i>$file</i></b>");
1.145 albertel 883: $problem='';
884: }
1.204 albertel 885: if (defined($env{'form.editxmltext'}) || defined($env{'form.Undo'})) {
1.145 albertel 886: my $error=&handle_save_or_undo($request,\$problem,
1.204 albertel 887: \$env{'form.editxmltext'});
1.145 albertel 888: if (!$error) { $problem=&Apache::lonnet::getfile($file); }
889: }
1.204 albertel 890: &Apache::lonhomework::showhashsubset(\%env,'^form');
1.289 raeburn 891: if ( $env{'form.submitbutton'} eq &mt('Save and View') ) {
1.204 albertel 892: &Apache::lonhomework::showhashsubset(\%env,'^form');
1.289 raeburn 893: $env{'form.problemmode'}='view';
1.145 albertel 894: &renderpage($request,$file);
895: } else {
896: my ($rows,$cols) = &Apache::edit::textarea_sizes(\$problem);
1.160 www 897: my $xml_help = '<table><tr><td>'.
898: &Apache::loncommon::helpLatexCheatsheet("Problem_Editor_XML_Index",
899: "Problem Editing Help").
900: '</td><td>'.
1.254 albertel 901: &Apache::loncommon::help_open_menu(undef,undef,5,'Authoring').
1.178 albertel 902: '</td></tr></table>';
1.145 albertel 903: if ($cols > 80) { $cols = 80; }
904: if ($cols < 70) { $cols = 70; }
905: if ($rows < 20) { $rows = 20; }
1.269 albertel 906: my $js =
907: &Apache::edit::js_change_detection().
1.289 raeburn 908: &Apache::loncommon::resize_textarea_js().
1.296 raeburn 909: &Apache::structuretags::setmode_javascript().
1.298 foxr 910: &Apache::lonhtmlcommon::dragmath_js("EditMathPopup");
1.270 albertel 911: my $only_body = ($env{'environment.remote'} eq 'off')? 0 : 1;
1.296 raeburn 912: my $dragmath_button =
913: &Apache::lonhtmlcommon::dragmath_button("LC_editxmltext",1);
1.238 albertel 914: my $start_page =
1.269 albertel 915: &Apache::loncommon::start_page(&mt("EditXML [_1]",$file),$js,
916: {'no_auto_mt_title' => 1,
1.270 albertel 917: 'only_body' => $only_body,
1.269 albertel 918: 'add_entries' => {
919: 'onresize' => q[resize_textarea('LC_editxmltext','LC_aftertextarea')],
920: 'onload' => q[resize_textarea('LC_editxmltext','LC_aftertextarea')],
921: }});
1.238 albertel 922: $result.=$start_page.
1.213 albertel 923: &renderpage($request,$file,['no_output_web'],1).
1.281 albertel 924: '<form '.&Apache::edit::form_change_detection().' name="lonhomework" method="POST" action="'.
1.204 albertel 925: &HTML::Entities::encode($env{'request.uri'},'<>&"').'">'.
1.179 albertel 926: &Apache::structuretags::remember_problem_state().'
1.278 albertel 927: <div class="LC_edit_problem_editxml_header">
1.280 albertel 928: <table class="LC_edit_problem_header_title"><tr><td>
929: '.&mt('Problem Editing').&Apache::loncommon::help_open_topic('Problem_Editor_XML_Index').'
930: </td><td align="right">
931: '.&Apache::loncommon::helpLatexCheatsheet().'
932: </td></tr>
933: </table>
934: <div class="LC_edit_problem_discards">
1.289 raeburn 935: <input type="hidden" name="problemmode" value="editxml" />
1.294 foxr 936:
1.289 raeburn 937: <input type="button" name="submitmode" accesskey="d" value="'.&mt('Discard Edits and View').'" '.
938: 'onclick="javascript:setmode(this.form,'."'discard'".')" />
939: <input type="button" '.&Apache::edit::submit_ask_anyway('setmode(this.form,'."'edit'".')').'name="submitmode" accesskey="e" value="'.&mt('Edit').'" />
1.280 albertel 940: <input type="submit" name="Undo" accesskey="u" value="'.&mt('undo').'" />
1.296 raeburn 941: '.$dragmath_button.'
1.280 albertel 942: </div>
943: <div class="LC_edit_problem_saves">
1.289 raeburn 944: <input type="submit" name="submitbutton" accesskey="s" value="'.&mt('Save').'" />
1.296 raeburn 945: <input type="submit" name="submitbutton" accesskey="v" value="'.&mt('Save and View').'" />
1.280 albertel 946: </div>
947: <hr class="LC_edit_problem_divide" />
1.281 albertel 948: '.&Apache::lonxml::message_location().'
1.278 albertel 949: </div>
1.280 albertel 950: ' . '
1.269 albertel 951: <textarea '.&Apache::edit::element_change_detection().
952: ' rows="'.$rows.'" cols="'.$cols.'" style="width:100%" '.
953: ' name="editxmltext" id="LC_editxmltext">'.
954: &HTML::Entities::encode($problem,'<>&"').'</textarea>
955: <div id="LC_aftertextarea">
956: </div>
1.238 albertel 957: </form>'.&Apache::loncommon::end_page();
1.171 albertel 958: &Apache::lonxml::add_messages(\$result);
1.145 albertel 959: $request->print($result);
960: }
961: return '';
1.47 albertel 962: }
1.189 albertel 963:
1.299 ! jms 964: =pod
! 965:
! 966: =item renderpage()
! 967:
! 968: Render the page in whatever target desired.
! 969:
! 970: =cut
! 971:
1.41 albertel 972: sub renderpage {
1.213 albertel 973: my ($request,$file,$targets,$return_string) = @_;
1.52 albertel 974:
1.211 albertel 975: my @targets = @{$targets || [&get_target()]};
1.204 albertel 976: &Apache::lonhomework::showhashsubset(\%env,'form.');
1.145 albertel 977: &Apache::lonxml::debug("Running targets ".join(':',@targets));
1.268 albertel 978:
1.171 albertel 979: my $overall_result;
1.145 albertel 980: foreach my $target (@targets) {
1.183 albertel 981: # FIXME need to do something intelligent when a problem goes
982: # from viewable to not viewable due to map conditions
983: #&setuppermissions();
984: #if ( $Apache::lonhomework::browse ne '2'
985: # && $Apache::lonhomework::browse ne 'F' ) {
986: # $request->print(" You most likely shouldn't see me.");
987: #}
1.145 albertel 988: #my $t0 = [&gettimeofday()];
1.211 albertel 989: my $output=1;
990: if ($target eq 'no_output_web') {
991: $target = 'web'; $output=0;
992: }
1.145 albertel 993: my $problem=&Apache::lonnet::getfile($file);
1.222 albertel 994: my $result;
1.145 albertel 995: if ($problem eq -1) {
1.260 albertel 996: $problem='';
1.222 albertel 997: my $filename=(split('/',$file))[-1];
1.260 albertel 998: my $error =
999: "<b> ".&mt('Unable to find [_1]',
1000: ' <span class="LC_filename">'.$filename.'</span>')
1001: ."</b>";
1002: $result.=
1003: &Apache::loncommon::simple_error_page($request,'Not available',
1004: $error);
1005: return;
1.145 albertel 1006: }
1.52 albertel 1007:
1.145 albertel 1008: my %mystyle;
1009: if ($target eq 'analyze') { %Apache::lonhomework::analyze=(); }
1010: if ($target eq 'answer') { &showhash(%Apache::lonhomework::history); }
1.204 albertel 1011: if ($target eq 'web') {&Apache::lonhomework::showhashsubset(\%env,'^form');}
1.145 albertel 1012:
1013: &Apache::lonxml::debug("Should be parsing now");
1.222 albertel 1014: $result .= &Apache::lonxml::xmlparse($request, $target, $problem,
1015: &setup_vars($target),%mystyle);
1.273 albertel 1016: &finished_parsing();
1.214 albertel 1017: if (!$output) { $result = ''; }
1.145 albertel 1018: #$request->print("Result follows:");
1019: if ($target eq 'modified') {
1020: &handle_save_or_undo($request,\$problem,\$result);
1021: } else {
1022: if ($target eq 'analyze') {
1023: $result=&Apache::lonnet::hashref2str(\%Apache::lonhomework::analyze);
1024: undef(%Apache::lonhomework::analyze);
1025: }
1026: #my $td=&tv_interval($t0);
1027: #if ( $Apache::lonxml::debug) {
1028: #$result =~ s:</body>::;
1029: #$result.="<br />Spent $td seconds processing target $target\n</body>";
1030: #}
1.171 albertel 1031: # $request->print($result);
1032: $overall_result.=$result;
1033: # $request->rflush();
1.145 albertel 1034: }
1035: #$request->print(":Result ends");
1036: #my $td=&tv_interval($t0);
1.52 albertel 1037: }
1.213 albertel 1038: if (!$return_string) {
1039: &Apache::lonxml::add_messages(\$overall_result);
1040: $request->print($overall_result);
1041: $request->rflush();
1042: } else {
1043: return $overall_result;
1044: }
1.41 albertel 1045: }
1046:
1.273 albertel 1047: sub finished_parsing {
1048: undef($Apache::lonhomework::parsing_a_problem);
1049: undef($Apache::lonhomework::parsing_a_task);
1050: }
1051:
1.42 albertel 1052: sub get_template_list {
1.282 albertel 1053: my ($extension) = @_;
1.145 albertel 1054: my $result;
1055: my @allnames;
1056: &Apache::lonxml::debug("Looking for :$extension:");
1.282 albertel 1057: my $glob_extension = $extension;
1058: if ($extension eq 'survey' || $extension eq 'exam') {
1059: $glob_extension = 'problem';
1060: }
1061: my @files = glob($Apache::lonnet::perlvar{'lonIncludes'}.
1062: '/templates/*.'.$glob_extension);
1.292 www 1063: @files = map {[$_,&mt(&Apache::lonnet::metadata($_, 'title')),
1064: (&Apache::lonnet::metadata($_, 'category')?&mt(&Apache::lonnet::metadata($_, 'category')):&mt('Miscellaneous')),
1065: &mt(&Apache::lonnet::metadata($_, 'help'))]} (@files);
1066: @files = sort {$a->[2].$a->[1] cmp $b->[2].$b->[1]} (@files);
1.287 raeburn 1067: my ($midpoint,$seconddiv,$numfiles);
1068: $numfiles = 0;
1069: foreach my $file (@files) {
1070: next if ($file->[1] !~ /\S/);
1071: $numfiles ++;
1072: }
1073: if ($numfiles > 0) {
1074: $result = '<div class="LC_left_float">';
1075: $midpoint = int($numfiles/2);
1076: if ($numfiles%2) {
1077: $midpoint ++;
1078: }
1079: }
1080: my $count = 0;
1.292 www 1081: my $currentcategory='';
1.282 albertel 1082: foreach my $file (@files) {
1083: next if ($file->[1] !~ /\S/);
1.292 www 1084: if ($file->[2] ne $currentcategory) {
1085: $currentcategory=$file->[2];
1086: if ((!$seconddiv) && ($count >= $midpoint)) {
1087: $result .= '</div>'."\n".'<div class="LC_left_float">'."\n";
1088: $seconddiv = 1;
1089: }
1090: $result.='<h3>'.$currentcategory.'</h3>';
1.293 www 1091: $count++;
1.292 www 1092: }
1.282 albertel 1093: $result .=
1094: '<label><input type="radio" name="template" value="'.$file->[0].'" />'.
1.292 www 1095: $file->[1].'</label>';
1096: if ($file->[3]) {
1097: $result.=&Apache::loncommon::help_open_topic($file->[3]);
1098: }
1099: my $filename=$file->[0];
1100: $filename=~s/^\/home\/httpd\/html//;
1101: $result.=' <font size="-2"><a href="'.$filename.'" target="sample">'.&mt('Example').'</font></a><br />'."\n";
1.287 raeburn 1102: $count ++;
1103: }
1104: if ($numfiles > 0) {
1105: $result .= '</div>'."\n".'<div class="LC_clear_float_footer"></div>'."\n";
1.42 albertel 1106: }
1.145 albertel 1107: return $result;
1.42 albertel 1108: }
1109:
1110: sub newproblem {
1.65 matthew 1111: my ($request) = @_;
1.282 albertel 1112:
1113: if ($env{'form.template'}) {
1114: my $file = $env{'form.template'};
1.65 matthew 1115: my $dest = &Apache::lonnet::filelocation("",$request->uri);
1.282 albertel 1116: &File::Copy::copy($file,$dest);
1.65 matthew 1117: &renderpage($request,$dest);
1.282 albertel 1118: return;
1119: }
1120:
1121: my ($extension) = ($request->uri =~ m/\.(\w+)$/);
1122: &Apache::lonxml::debug("Looking for :$extension:");
1123: my $templatelist=&get_template_list($extension);
1124: if ($env{'form.newfile'} && !$templatelist) {
1125: # no templates found
1.131 albertel 1126: my $templatefilename =
1.258 albertel 1127: $request->dir_config('lonIncludes').'/templates/blank.'.$extension;
1.131 albertel 1128: &Apache::lonxml::debug("$templatefilename");
1129: my $dest = &Apache::lonnet::filelocation("",$request->uri);
1.282 albertel 1130: &File::Copy::copy($templatefilename,$dest);
1.131 albertel 1131: &renderpage($request,$dest);
1.85 albertel 1132: } else {
1.176 albertel 1133: my $url=&HTML::Entities::encode($request->uri,'<>&"');
1134: my $shownurl=$url;
1.157 albertel 1135: $shownurl=~s-^/~-/priv/-;
1.65 matthew 1136: my $dest = &Apache::lonnet::filelocation("",$request->uri);
1.128 albertel 1137: my $errormsg;
1.85 albertel 1138: my $instructions;
1.240 albertel 1139: my $start_page =
1140: &Apache::loncommon::start_page("Create New $extension");
1.258 albertel 1141: $request->print("
1.240 albertel 1142: $start_page
1.258 albertel 1143: <h1>".&mt("Creating a new $extension resource.")."</h1>
1.128 albertel 1144: $errormsg
1.258 albertel 1145: ".&mt("The requested file [_1] currently does not exist.",
1146: "<tt>$shownurl</tt>")."
1.105 www 1147: <p>
1.258 albertel 1148: <b>
1149: ".&mt("To create a new $extension, select a template from the".
1.282 albertel 1150: " list below. Then click on the \"Create $extension\" button.")."</b>
1.259 albertel 1151: </p><form action=\"$url\" method=\"POST\">");
1.258 albertel 1152:
1.85 albertel 1153: if (defined($templatelist)) {
1.282 albertel 1154: $request->print($templatelist);
1.85 albertel 1155: }
1.282 albertel 1156: $request->print('<br /><input type="submit" name="newfile" value="'.
1157: &mt("Create $extension").'" />');
1.238 albertel 1158: $request->print("</form></p>".&Apache::loncommon::end_page());
1.65 matthew 1159: }
1.282 albertel 1160: return;
1.42 albertel 1161: }
1162:
1.268 albertel 1163: sub update_construct_style {
1164: if ($env{'request.state'} eq "construct"
1.289 raeburn 1165: && $env{'form.problemmode'} eq 'view'
1.268 albertel 1166: && defined($env{'form.submitted'})
1167: && !defined($env{'form.resetdata'})
1168: && !defined($env{'form.newrandomization'})) {
1169: if ((!$env{'form.style_file'} && $env{'construct.style'})
1170: ||$env{'form.clear_style_file'}) {
1171: &Apache::lonnet::delenv('construct\\.style');
1172: } elsif ($env{'form.style_file'}
1173: && $env{'construct.style'} ne $env{'form.style_file'}) {
1.291 raeburn 1174: &Apache::lonnet::appenv({'construct.style' =>
1175: $env{'form.style_file'}});
1.268 albertel 1176: }
1177: }
1178: }
1179:
1180:
1.41 albertel 1181: sub handler {
1.145 albertel 1182: #my $t0 = [&gettimeofday()];
1183: my $request=$_[0];
1.223 albertel 1184: $Apache::lonxml::request=$request;
1.204 albertel 1185: $Apache::lonxml::debug=$env{'user.debug'};
1186: $env{'request.uri'}=$request->uri;
1.180 albertel 1187: &setuppermissions();
1.193 albertel 1188:
1.145 albertel 1189: my $file=&Apache::lonnet::filelocation("",$request->uri);
1190:
1191: #check if we know where we are
1.204 albertel 1192: if ($env{'request.course.fn'} && !&Apache::lonnet::symbread()) {
1.145 albertel 1193: # if we are browsing we might not be able to know where we are
1.173 albertel 1194: if ($Apache::lonhomework::browse ne 'F' &&
1.204 albertel 1195: $env{'request.state'} ne "construct") {
1.145 albertel 1196: #should know where we are, so ask
1.253 albertel 1197: &unset_permissions();
1198: $request->internal_redirect('/adm/ambiguous');
1199: return OK;
1.145 albertel 1200: }
1201: }
1.253 albertel 1202: if (&setupheader($request)) {
1203: &unset_permissions();
1204: return OK;
1205: }
1.244 albertel 1206: &Apache::lonxml::debug("Permissions:$Apache::lonhomework::browse:$Apache::lonhomework::viewgrades:$Apache::lonhomework::modifygrades:$Apache::lonhomework::queuegrade");
1.204 albertel 1207: &Apache::lonxml::debug("Problem Mode ".$env{'form.problemmode'});
1.261 albertel 1208: my ($symb) = &Apache::lonnet::whichuser();
1.145 albertel 1209: &Apache::lonxml::debug('symb is '.$symb);
1.204 albertel 1210: if ($env{'request.state'} eq "construct") {
1.145 albertel 1211: if ( -e $file ) {
1212: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
1213: ['problemmode']);
1.204 albertel 1214: if (!(defined $env{'form.problemmode'})) {
1.145 albertel 1215: #first visit to problem in construction space
1.289 raeburn 1216: $env{'form.problemmode'}= 'view';
1.145 albertel 1217: &renderpage($request,$file);
1.289 raeburn 1218: } elsif ($env{'form.problemmode'} eq 'editxml') {
1.145 albertel 1219: &editxmlmode($request,$file);
1.289 raeburn 1220: } elsif ($env{'form.problemmode'} eq 'calcanswers') {
1.145 albertel 1221: &analyze($request,$file);
1222: } else {
1.268 albertel 1223: &update_construct_style();
1.145 albertel 1224: &renderpage($request,$file);
1225: }
1226: } else {
1227: # requested file doesn't exist in contruction space
1228: &newproblem($request);
1229: }
1230: } else {
1231: # just render the page normally outside of construction space
1232: &Apache::lonxml::debug("not construct");
1.52 albertel 1233: &renderpage($request,$file);
1.41 albertel 1234: }
1.145 albertel 1235: #my $td=&tv_interval($t0);
1236: #&Apache::lonxml::debug("Spent $td seconds processing");
1237: # always turn off debug messages
1238: $Apache::lonxml::debug=0;
1.253 albertel 1239: &unset_permissions();
1.145 albertel 1240: return OK;
1.52 albertel 1241:
1.1 albertel 1242: }
1243:
1244: 1;
1245: __END__
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