Annotation of loncom/homework/lonhomework.pm, revision 1.319
1.63 albertel 1: # The LearningOnline Network with CAPA
1.52 albertel 2: # The LON-CAPA Homework handler
1.63 albertel 3: #
1.319 ! droeschl 4: # $Id: lonhomework.pm,v 1.318 2010/03/10 21:25:36 droeschl 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:
1.301 jms 88: #
89: # Decides what targets to render for.
90: # Implicit inputs:
91: # Various session environment variables:
92: # request.state - published - is a /res/ resource
93: # uploaded - is a /uploaded/ resource
94: # contruct - is a /priv/ resource
95: # form.grade_target - a form parameter requesting a specific target
1.5 albertel 96: sub get_target {
1.204 albertel 97: &Apache::lonxml::debug("request.state = $env{'request.state'}");
98: if( defined($env{'form.grade_target'})) {
99: &Apache::lonxml::debug("form.grade_target= $env{'form.grade_target'}");
1.188 foxr 100: } else {
1.189 albertel 101: &Apache::lonxml::debug("form.grade_target <undefined>");
1.188 foxr 102: }
1.204 albertel 103: if (($env{'request.state'} eq "published") ||
104: ($env{'request.state'} eq "uploaded")) {
105: if ( defined($env{'form.grade_target'} )
106: && ($env{'form.grade_target'} eq 'tex')) {
107: return ($env{'form.grade_target'});
108: } elsif ( defined($env{'form.grade_target'} )
1.145 albertel 109: && ($Apache::lonhomework::viewgrades eq 'F' )) {
1.207 albertel 110: return ($env{'form.grade_target'});
1.244 albertel 111: } elsif ( $env{'form.grade_target'} eq 'webgrade'
112: && ($Apache::lonhomework::queuegrade eq 'F' )) {
113: return ($env{'form.grade_target'});
1.207 albertel 114: }
115: if ($env{'form.webgrade'} &&
1.244 albertel 116: ($Apache::lonhomework::modifygrades eq 'F'
117: || $Apache::lonhomework::queuegrade eq 'F' )) {
1.207 albertel 118: return ('grade','webgrade');
1.145 albertel 119: }
1.204 albertel 120: if ( defined($env{'form.submitted'}) &&
121: ( !defined($env{'form.newrandomization'}))) {
1.217 albertel 122: return ('grade', 'web');
1.145 albertel 123: } else {
1.217 albertel 124: return ('web');
1.145 albertel 125: }
1.204 albertel 126: } elsif ($env{'request.state'} eq "construct") {
127: if ( defined($env{'form.grade_target'}) ) {
128: return ($env{'form.grade_target'});
1.145 albertel 129: }
1.204 albertel 130: if ( defined($env{'form.preview'})) {
131: if ( defined($env{'form.submitted'})) {
1.145 albertel 132: return ('grade', 'web');
133: } else {
134: return ('web');
135: }
136: } else {
1.267 albertel 137: if ($env{'form.problemstate'} eq 'WEB_GRADE') {
138: #$env{'form.webgrade'} = 'yes';
139: return ('grade','webgrade','answer');
1.289 raeburn 140: } elsif (($env{'form.problemmode'} eq 'view') ||
141: ($env{'form.problemmode'} eq 'discard')) {
1.204 albertel 142: if ( defined($env{'form.submitted'}) &&
143: (!defined($env{'form.resetdata'})) &&
144: (!defined($env{'form.newrandomization'}))) {
1.145 albertel 145: return ('grade', 'web','answer');
146: } else {
147: return ('web','answer');
148: }
1.289 raeburn 149: } elsif ($env{'form.problemmode'} eq 'edit') {
1.204 albertel 150: if ( $env{'form.submitted'} eq 'edit' ) {
1.289 raeburn 151: if ( $env{'form.submitbutton'} eq &mt('Save and View') ) {
1.145 albertel 152: return ('modified','web','answer');
153: } else {
1.211 albertel 154: return ('modified','no_output_web','edit');
1.145 albertel 155: }
156: } else {
1.211 albertel 157: return ('no_output_web','edit');
1.145 albertel 158: }
159: } else {
160: return ('web');
161: }
162: }
1.15 albertel 163: }
1.145 albertel 164: return ();
1.5 albertel 165: }
166:
1.3 albertel 167: sub setup_vars {
1.145 albertel 168: my ($target) = @_;
169: return ';'
1.11 albertel 170: # return ';$external::target='.$target.';';
1.2 albertel 171: }
172:
1.200 albertel 173: sub proctor_checked_in {
1.226 albertel 174: my ($slot_name,$slot,$type)=@_;
175: my @possible_proctors=split(",",$slot->{'proctor'});
176:
1.248 albertel 177: return 1 if (!@possible_proctors);
178:
1.226 albertel 179: my $key;
180: if ($type eq 'Task') {
1.230 albertel 181: my $version=$Apache::lonhomework::history{'resource.0.version'};
182: $key ="resource.$version.0.checkedin";
1.226 albertel 183: } elsif ($type eq 'problem') {
184: $key ='resource.0.checkedin';
185: }
1.249 albertel 186: # backward compatability, used to be username@domain,
187: # now is username:domain
188: my $who = $Apache::lonhomework::history{$key};
189: if ($who !~ /:/) {
190: $who =~ tr/@/:/;
191: }
1.226 albertel 192: foreach my $possible (@possible_proctors) {
1.249 albertel 193: if ($who eq $possible
1.226 albertel 194: && $Apache::lonhomework::history{$key.'.slot'} eq $slot_name) {
1.202 albertel 195: return 1;
196: }
197: }
1.226 albertel 198:
1.200 albertel 199: return 0;
200: }
201:
1.226 albertel 202: sub check_slot_access {
203: my ($id,$type)=@_;
204:
1.207 albertel 205: # does it pass normal muster
1.226 albertel 206: my ($status,$datemsg)=&check_access($id);
207:
1.252 albertel 208: my $useslots = &Apache::lonnet::EXT("resource.0.useslots");
1.251 albertel 209: if ($useslots ne 'resource' && $useslots ne 'map'
210: && $useslots ne 'map_map') {
1.226 albertel 211: return ($status,$datemsg);
212: }
213:
1.200 albertel 214: if ($status eq 'SHOW_ANSWER' ||
215: $status eq 'CLOSED' ||
216: $status eq 'INVALID_ACCESS' ||
217: $status eq 'UNAVAILABLE') {
218: return ($status,$datemsg);
219: }
1.204 albertel 220: if ($env{'request.state'} eq "construct") {
1.203 albertel 221: return ($status,$datemsg);
222: }
1.226 albertel 223:
224: if ($type eq 'Task') {
225: my $version=$Apache::lonhomework::history{'resource.version'};
1.230 albertel 226: if ($Apache::lonhomework::history{"resource.$version.0.checkedin"} &&
227: $Apache::lonhomework::history{"resource.$version.0.status"} eq 'pass') {
1.226 albertel 228: return ('SHOW_ANSWER');
229: }
1.207 albertel 230: }
1.226 albertel 231:
1.288 raeburn 232: my $availablestudent = &Apache::lonnet::EXT("resource.0.availablestudent");
233: my $available = &Apache::lonnet::EXT("resource.0.available");
234: my @slots= (split(':',$availablestudent),split(':',$available));
1.210 albertel 235:
1.200 albertel 236: # if (!@slots) {
237: # return ($status,$datemsg);
238: # }
239: my $slotstatus='NOT_IN_A_SLOT';
1.206 albertel 240: my ($returned_slot,$slot_name);
1.210 albertel 241: foreach my $slot (@slots) {
1.241 albertel 242: $slot =~ s/(^\s*|\s*$)//g;
1.201 albertel 243: &Apache::lonxml::debug("getting $slot");
1.200 albertel 244: my %slot=&Apache::lonnet::get_slot($slot);
1.201 albertel 245: &Apache::lonhomework::showhash(%slot);
1.200 albertel 246: if ($slot{'starttime'} < time &&
247: $slot{'endtime'} > time &&
1.297 raeburn 248: &Apache::loncommon::check_ip_acc($slot{'ip'})) {
1.202 albertel 249: &Apache::lonxml::debug("$slot is good");
250: $slotstatus='NEEDS_CHECKIN';
251: $returned_slot=\%slot;
1.206 albertel 252: $slot_name=$slot;
1.200 albertel 253: last;
254: }
255: }
1.202 albertel 256: if ($slotstatus eq 'NEEDS_CHECKIN' &&
1.226 albertel 257: &proctor_checked_in($slot_name,$returned_slot,$type)) {
1.202 albertel 258: &Apache::lonxml::debug("protoctor checked in");
1.200 albertel 259: $slotstatus='CAN_ANSWER';
260: }
1.226 albertel 261:
1.235 albertel 262: my ($is_correct,$got_grade,$checkedin);
1.226 albertel 263: if ($type eq 'Task') {
1.230 albertel 264: my $version=$Apache::lonhomework::history{'resource.0.version'};
1.231 albertel 265: $got_grade =
266: ($Apache::lonhomework::history{"resource.$version.0.status"}
267: =~ /^(?:pass|fail)$/);
1.235 albertel 268: $is_correct =
269: ($Apache::lonhomework::history{"resource.$version.0.status"} eq 'pass'
270: || $Apache::lonhomework::history{"resource.0.solved"} =~ /^correct_/ );
1.226 albertel 271: $checkedin =
1.230 albertel 272: $Apache::lonhomework::history{"resource.$version.0.checkedin"};
1.226 albertel 273: } elsif ($type eq 'problem') {
1.252 albertel 274: $got_grade = 1;
275: $checkedin = $Apache::lonhomework::history{"resource.0.checkedin"};
276: $is_correct =
277: ($Apache::lonhomework::history{"resource.0.solved"} =~/^correct_/);
1.226 albertel 278: }
279:
1.235 albertel 280: &Apache::lonxml::debug(" slot is $slotstatus checkedin ($checkedin) got_grade ($got_grade) is_correct ($is_correct)");
281:
1.243 albertel 282: # no slot is currently open, and has been checked in for this version
283: # but hasn't got a grade, therefore must be awaiting a grade
284: if (!defined($slot_name)
285: && $checkedin
1.236 albertel 286: && !$got_grade) {
287: return ('WAITING_FOR_GRADE');
288: }
289:
1.309 raeburn 290: # Previously used slot is no longer open, and has been checked in for this version.
291: # However, the problem is not closed, and potentially, another slot might be
292: # used to gain access to it to work on it, until the due date is reached, and the
293: # problem then becomes CLOSED. Therefore return the slotstatus -
294: # (which will be NOT_IN_SLOT).
1.252 albertel 295: if (!defined($slot_name)
296: && $checkedin
297: && $type eq 'problem') {
1.309 raeburn 298: return ($slotstatus);
1.252 albertel 299: }
300:
1.226 albertel 301: if ($slotstatus eq 'NOT_IN_A_SLOT'
302: && $checkedin ) {
303:
1.231 albertel 304: if ($got_grade) {
1.209 albertel 305: return ('SHOW_ANSWER');
306: } else {
307: return ('WAITING_FOR_GRADE');
308: }
1.226 albertel 309:
1.207 albertel 310: }
1.255 albertel 311:
1.235 albertel 312: if ( $is_correct) {
1.255 albertel 313: if ($type eq 'problem') {
314: return ($status);
315: }
1.235 albertel 316: return ('SHOW_ANSWER');
317: }
1.255 albertel 318:
1.225 albertel 319: if ( $status eq 'CANNOT_ANSWER' &&
320: ($slotstatus ne 'NEEDS_CHECKIN' && $slotstatus ne 'NOT_IN_A_SLOT')) {
321: return ($status,$datemsg);
322: }
323:
1.206 albertel 324: return ($slotstatus,$datemsg,$slot_name,$returned_slot);
1.198 albertel 325: }
1.200 albertel 326:
1.301 jms 327: # JB, 9/24/2002: Any changes in this function may require a change
328: # in lonnavmaps::resource::getDateStatus.
1.53 www 329: sub check_access {
1.145 albertel 330: my ($id) = @_;
331: my $date ='';
332: my $status;
333: my $datemsg = '';
334: my $lastdate = '';
335: my $type;
336: my $passed;
337:
1.204 albertel 338: if ($env{'request.state'} eq "construct") {
339: if ($env{'form.problemstate'}) {
340: if ($env{'form.problemstate'} =~ /^CANNOT_ANSWER/) {
1.277 albertel 341: if ( ! ($env{'form.problemstate'} eq 'CANNOT_ANSWER_correct'
342: && &hide_problem_status())) {
1.168 albertel 343: return ('CANNOT_ANSWER',
1.174 www 344: &mt('is in this state due to author settings.'));
1.167 albertel 345: }
1.165 albertel 346: } else {
1.204 albertel 347: return ($env{'form.problemstate'},
1.174 www 348: &mt('is in this state due to author settings.'));
1.165 albertel 349: }
350: }
1.145 albertel 351: &Apache::lonxml::debug("in construction ignoring dates");
352: $status='CAN_ANSWER';
1.146 albertel 353: $datemsg=&mt('is in under construction');
1.163 albertel 354: # return ($status,$datemsg);
1.145 albertel 355: }
356:
357: &Apache::lonxml::debug("checking for part :$id:");
358: &Apache::lonxml::debug("time:".time);
1.152 albertel 359:
1.261 albertel 360: my ($symb)=&Apache::lonnet::whichuser();
1.212 albertel 361: &Apache::lonxml::debug("symb:".$symb);
362: #if ($env{'request.state'} ne "construct" && $symb ne '') {
1.204 albertel 363: if ($env{'request.state'} ne "construct") {
1.288 raeburn 364: my $idacc = &Apache::lonnet::EXT("resource.$id.acc");
1.297 raeburn 365: my $allowed=&Apache::loncommon::check_ip_acc($idacc);
1.163 albertel 366: if (!$allowed && ($Apache::lonhomework::browse ne 'F')) {
367: $status='INVALID_ACCESS';
368: $date=&mt("can not be accessed from your location.");
1.145 albertel 369: return($status,$date);
370: }
1.163 albertel 371:
1.226 albertel 372: foreach my $temp ("opendate","duedate","answerdate") {
1.163 albertel 373: $lastdate = $date;
1.247 albertel 374: if ($temp eq 'duedate') {
375: $date = &due_date($id);
376: } else {
377: $date = &Apache::lonnet::EXT("resource.$id.$temp");
378: }
379:
1.163 albertel 380: my $thistype = &Apache::lonnet::EXT("resource.$id.$temp.type");
381: if ($thistype =~ /^(con_lost|no_such_host)/ ||
382: $date =~ /^(con_lost|no_such_host)/) {
383: $status='UNAVAILABLE';
384: $date=&mt("may open later.");
385: return($status,$date);
386: }
387: if ($thistype eq 'date_interval') {
388: if ($temp eq 'opendate') {
389: $date=&Apache::lonnet::EXT("resource.$id.duedate")-$date;
390: }
391: if ($temp eq 'answerdate') {
392: $date=&Apache::lonnet::EXT("resource.$id.duedate")+$date;
393: }
1.145 albertel 394: }
1.163 albertel 395: &Apache::lonxml::debug("found :$date: for :$temp:");
396: if ($date eq '') {
397: $date = &mt("an unknown date"); $passed = 0;
398: } elsif ($date eq 'con_lost') {
399: $date = &mt("an indeterminate date"); $passed = 0;
400: } else {
401: if (time < $date) { $passed = 0; } else { $passed = 1; }
1.274 www 402: $date = &Apache::lonlocal::locallocaltime($date);
1.145 albertel 403: }
1.163 albertel 404: if (!$passed) { $type=$temp; last; }
1.145 albertel 405: }
1.163 albertel 406: &Apache::lonxml::debug("have :$type:$passed:");
407: if ($passed) {
408: $status='SHOW_ANSWER';
409: $datemsg=$date;
410: } elsif ($type eq 'opendate') {
411: $status='CLOSED';
412: $datemsg = &mt("will open on")." $date";
413: } elsif ($type eq 'duedate') {
414: $status='CAN_ANSWER';
415: $datemsg = &mt("is due at")." $date";
416: } elsif ($type eq 'answerdate') {
417: $status='CLOSED';
418: $datemsg = &mt("was due on")." $lastdate".&mt(", and answers will be available on")." $date";
1.145 albertel 419: }
420: }
1.212 albertel 421: if ($status eq 'CAN_ANSWER' ||
422: (($Apache::lonhomework::browse eq 'F') && ($status eq 'CLOSED'))) {
1.145 albertel 423: #check #tries, and if correct.
424: my $tries = $Apache::lonhomework::history{"resource.$id.tries"};
425: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
426: if ( $tries eq '' ) { $tries = '0'; }
1.164 albertel 427: if ( $maxtries eq '' &&
1.204 albertel 428: $env{'request.state'} ne 'construct') { $maxtries = '2'; }
1.164 albertel 429: if ($maxtries && $tries >= $maxtries) { $status = 'CANNOT_ANSWER'; }
1.145 albertel 430: # if (correct and show prob status) or excused then CANNOT_ANSWER
431: if(($Apache::lonhomework::history{"resource.$id.solved"}=~/^correct/
432: &&
1.277 albertel 433: &show_problem_status())
1.145 albertel 434: ||
435: $Apache::lonhomework::history{"resource.$id.solved"}=~/^excused/) {
436: $status = 'CANNOT_ANSWER';
437: }
1.285 albertel 438: if ($status eq 'CANNOT_ANSWER'
439: && &show_answer_problem_status()) {
440: $status = 'SHOW_ANSWER';
441: }
1.121 albertel 442: }
1.181 albertel 443: if ($status eq 'CAN_ANSWER' || $status eq 'CANNOT_ANSWER') {
1.286 albertel 444: my @interval=&Apache::lonnet::EXT("resource.$id.interval");
445: &Apache::lonxml::debug("looking for interval @interval");
446: if ($interval[0]) {
447: my $first_access=&Apache::lonnet::get_first_access($interval[1]);
1.177 albertel 448: &Apache::lonxml::debug("looking for accesstime $first_access");
449: if (!$first_access) {
450: $status='NOT_YET_VIEWED';
1.247 albertel 451: my $due_date = &due_date($id);
1.256 albertel 452: my $seconds_left = $due_date - time;
1.286 albertel 453: if ($seconds_left > $interval[0] || $due_date eq '') {
454: $seconds_left = $interval[0];
1.256 albertel 455: }
456: $datemsg=&seconds_to_human_length($seconds_left);
1.177 albertel 457: }
458: }
459: }
1.247 albertel 460:
1.133 albertel 461: #if (($status ne 'CLOSED') && ($Apache::lonhomework::type eq 'exam') &&
462: # (!$Apache::lonhomework::history{"resource.0.outtoken"})) {
463: # return ('UNCHECKEDOUT','needs to be checked out');
464: #}
1.54 www 465:
466:
1.145 albertel 467: &Apache::lonxml::debug("sending back :$status:$datemsg:");
468: if (($Apache::lonhomework::browse eq 'F') && ($status eq 'CLOSED')) {
469: &Apache::lonxml::debug("should be allowed to browse a resource when closed");
470: $status='CAN_ANSWER';
1.146 albertel 471: $datemsg=&mt('is closed but you are allowed to view it');
1.145 albertel 472: }
1.106 albertel 473:
1.145 albertel 474: return ($status,$datemsg);
1.20 albertel 475: }
1.301 jms 476: # this should work exactly like the copy in lonnavmaps.pm
1.246 albertel 477: sub due_date {
1.250 albertel 478: my ($part_id,$symb,$udom,$uname)=@_;
1.246 albertel 479: my $date;
1.286 albertel 480: my @interval= &Apache::lonnet::EXT("resource.$part_id.interval",$symb,
1.250 albertel 481: $udom,$uname);
1.286 albertel 482: &Apache::lonxml::debug("looking for interval $part_id $symb @interval");
1.250 albertel 483: my $due_date= &Apache::lonnet::EXT("resource.$part_id.duedate",$symb,
484: $udom,$uname);
1.247 albertel 485: &Apache::lonxml::debug("looking for due_date $part_id $symb $due_date");
1.286 albertel 486: if ($interval[0] =~ /\d+/) {
487: my $first_access=&Apache::lonnet::get_first_access($interval[1],$symb);
488: &Apache::lonxml::debug("looking for first_access $first_access ($interval[1])");
1.247 albertel 489: if (defined($first_access)) {
1.286 albertel 490: my $interval = $first_access+$interval[0];
1.283 albertel 491: $date = (!$due_date || $interval < $due_date) ? $interval
492: : $due_date;
1.247 albertel 493: } else {
494: $date = $due_date;
495: }
496: } else {
497: $date = $due_date;
1.246 albertel 498: }
499: return $date
500: }
501:
1.192 albertel 502: sub seconds_to_human_length {
503: my ($length)=@_;
504:
505: my $seconds=$length%60; $length=int($length/60);
506: my $minutes=$length%60; $length=int($length/60);
507: my $hours=$length%24; $length=int($length/24);
508: my $days=$length;
509:
510: my $timestr;
511: if ($days > 0) { $timestr.=&mt('[quant,_1,day]',$days); }
512: if ($hours > 0) { $timestr.=($timestr?", ":"").
513: &mt('[quant,_1,hour]',$hours); }
514: if ($minutes > 0) { $timestr.=($timestr?", ":"").
515: &mt('[quant,_1,minute]',$minutes); }
516: if ($seconds > 0) { $timestr.=($timestr?", ":"").
517: &mt('[quant,_1,second]',$seconds); }
518: return $timestr;
519: }
520:
1.41 albertel 521: sub showhash {
1.145 albertel 522: my (%hash) = @_;
523: &showhashsubset(\%hash,'.');
524: return '';
1.79 albertel 525: }
526:
1.106 albertel 527: sub showarray {
528: my ($array)=@_;
529: my $string="(";
530: foreach my $elm (@{ $array }) {
1.193 albertel 531: if (ref($elm) eq 'ARRAY') {
532: $string.=&showarray($elm);
533: } elsif (ref($elm) eq 'HASH') {
534: $string.= "HASH --- \n<br />";
535: $string.= &showhashsubset($elm,'.');
1.106 albertel 536: } else {
537: $string.="$elm,"
538: }
539: }
540: chop($string);
541: $string.=")";
542: return $string;
543: }
544:
1.79 albertel 545: sub showhashsubset {
1.145 albertel 546: my ($hash,$keyre) = @_;
547: my $resultkey;
548: foreach $resultkey (sort keys %$hash) {
1.193 albertel 549: if ($resultkey !~ /$keyre/) { next; }
550: if (ref($$hash{$resultkey}) eq 'ARRAY' ) {
551: &Apache::lonxml::debug("$resultkey ---- ".
552: &showarray($$hash{$resultkey}));
553: } elsif (ref($$hash{$resultkey}) eq 'HASH' ) {
554: &Apache::lonxml::debug("$resultkey ---- $$hash{$resultkey}");
555: &showhashsubset($$hash{$resultkey},'.');
556: } else {
557: &Apache::lonxml::debug("$resultkey ---- $$hash{$resultkey}");
1.145 albertel 558: }
559: }
560: &Apache::lonxml::debug("\n<br />restored values^</br>\n");
561: return '';
1.41 albertel 562: }
563:
564: sub setuppermissions {
1.204 albertel 565: $Apache::lonhomework::browse= &Apache::lonnet::allowed('bre',$env{'request.filename'});
566: my $viewgrades = &Apache::lonnet::allowed('vgr',$env{'request.course.id'});
1.145 albertel 567: if (! $viewgrades &&
1.204 albertel 568: exists($env{'request.course.sec'}) &&
569: $env{'request.course.sec'} !~ /^\s*$/) {
570: $viewgrades = &Apache::lonnet::allowed('vgr',$env{'request.course.id'}.
571: '/'.$env{'request.course.sec'});
1.145 albertel 572: }
1.244 albertel 573: $Apache::lonhomework::viewgrades = $viewgrades;
574:
1.185 albertel 575: if ($Apache::lonhomework::browse eq 'F' &&
1.204 albertel 576: $env{'form.devalidatecourseresdata'} eq 'on') {
1.261 albertel 577: my (undef,$courseid) = &Apache::lonnet::whichuser();
1.204 albertel 578: &Apache::lonnet::devalidatecourseresdata($env{"course.$courseid.num"},
579: $env{"course.$courseid.domain"});
1.185 albertel 580: }
1.244 albertel 581:
1.205 albertel 582: my $modifygrades = &Apache::lonnet::allowed('mgr',$env{'request.course.id'});
583: if (! $modifygrades &&
584: exists($env{'request.course.sec'}) &&
585: $env{'request.course.sec'} !~ /^\s*$/) {
586: $modifygrades =
587: &Apache::lonnet::allowed('mgr',$env{'request.course.id'}.
588: '/'.$env{'request.course.sec'});
589: }
590: $Apache::lonhomework::modifygrades = $modifygrades;
1.244 albertel 591:
592: my $queuegrade = &Apache::lonnet::allowed('mqg',$env{'request.course.id'});
593: if (! $queuegrade &&
594: exists($env{'request.course.sec'}) &&
595: $env{'request.course.sec'} !~ /^\s*$/) {
596: $queuegrade =
597: &Apache::lonnet::allowed('qgr',$env{'request.course.id'}.
598: '/'.$env{'request.course.sec'});
599: }
600: $Apache::lonhomework::queuegrade = $queuegrade;
1.205 albertel 601: return '';
1.41 albertel 602: }
603:
1.253 albertel 604: sub unset_permissions {
605: undef($Apache::lonhomework::queuegrade);
606: undef($Apache::lonhomework::modifygrades);
607: undef($Apache::lonhomework::viewgrades);
608: undef($Apache::lonhomework::browse);
609: }
610:
1.41 albertel 611: sub setupheader {
1.120 albertel 612: my $request=$_[0];
1.197 albertel 613: &Apache::loncommon::content_type($request,'text/html');
1.120 albertel 614: if (!$Apache::lonxml::debug && ($ENV{'REQUEST_METHOD'} eq 'GET')) {
615: &Apache::loncommon::no_cache($request);
616: }
1.196 albertel 617: # $request->set_last_modified(&Apache::lonnet::metadata($request->uri,
618: # 'lastrevisiondate'));
1.120 albertel 619: $request->send_http_header;
620: return OK if $request->header_only;
621: return ''
1.41 albertel 622: }
1.35 albertel 623:
1.47 albertel 624: sub handle_save_or_undo {
1.145 albertel 625: my ($request,$problem,$result) = @_;
626: my $file = &Apache::lonnet::filelocation("",$request->uri);
627: my $filebak =$file.".bak";
628: my $filetmp =$file.".tmp";
629: my $error=0;
1.204 albertel 630: if ($env{'form.Undo'} eq &mt('undo')) {
1.145 albertel 631: my $error=0;
1.284 albertel 632: if (!&File::Copy::copy($file,$filetmp)) { $error=1; }
633: if ((!$error) && (!&File::Copy::copy($filebak,$file))) { $error=1; }
634: if ((!$error) && (!&File::Copy::move($filetmp,$filebak))) { $error=1; }
1.145 albertel 635: if (!$error) {
1.266 albertel 636: &Apache::lonxml::info("<p><b>".
637: &mt("Undid changes, Switched [_1] and [_2]",
638: '<span class="LC_filename">'.$filebak.
639: '</span>',
640: '<span class="LC_filename">'.$file.
641: '</span>')."</b></p>");
1.145 albertel 642: } else {
1.266 albertel 643: &Apache::lonxml::info("<p><span class=\"LC_error\">".
644: &mt("Unable to undo, unable to switch [_1] and [_2]",
645: '<span class="LC_filename">'.
646: $filebak.'</span>',
647: '<span class="LC_filename">'.
648: $file.'</span>')."</span></p>");
1.145 albertel 649: $error=1;
650: }
1.52 albertel 651: } else {
1.262 banghart 652: &Apache::lonnet::correct_line_ends($result);
1.145 albertel 653: my $fs=Apache::File->new(">$filebak");
654: if (defined($fs)) {
655: print $fs $$problem;
656: } else {
1.266 albertel 657: &Apache::lonxml::info("<span class=\"LC_error\">".
658: &mt("Unable to make backup [_1]",
659: '<span class="LC_filename">'.
660: $filebak.'</span>')."</span>");
1.145 albertel 661: $error=2;
662: }
663: my $fh=Apache::File->new(">$file");
664: if (defined($fh)) {
665: print $fh $$result;
666: } else {
1.266 albertel 667: &Apache::lonxml::info('<span class="LC_error">'.
668: &mt("Unable to write to [_1]",
669: '<span class="LC_filename">'.
670: $file.'</span>').
671: '</span>');
1.145 albertel 672: $error|=4;
673: }
1.52 albertel 674: }
1.145 albertel 675: return $error;
1.64 albertel 676: }
677:
1.101 albertel 678: sub analyze_header {
679: my ($request) = @_;
1.289 raeburn 680: my $js = &Apache::structuretags::setmode_javascript();
1.312 bisitz 681:
682: # Breadcrumbs
683: my $brcrum = [{'href' => &Apache::loncommon::authorspace(),
684: 'text' => 'Construction Space'},
685: {'href' => '',
686: 'text' => 'Problem Testing'},
687: {'href' => '',
688: 'text' => 'Analyzing a problem'}];
689:
1.238 albertel 690: my $result =
1.312 bisitz 691: &Apache::loncommon::start_page('Analyzing a problem',
692: $js,
693: {'bread_crumbs' => $brcrum,})
1.311 bisitz 694: .&Apache::loncommon::head_subbox(
695: &Apache::loncommon::CSTR_pageheader());
1.238 albertel 696: $result .=
697: &Apache::lonxml::message_location().'
1.310 bisitz 698: <form name="lonhomework" method="post" action="'.
1.204 albertel 699: &HTML::Entities::encode($env{'request.uri'},'<>&"').'">'.
1.289 raeburn 700: '<input type="hidden" name="problemmode" value="'.
701: $env{'form.problemmode'}.'" />'.
1.179 albertel 702: &Apache::structuretags::remember_problem_state().'
1.278 albertel 703: <div class="LC_edit_problem_analyze_header">
1.289 raeburn 704: <input type="button" name="submitmode" value="'.&mt("EditXML").'" '.
705: 'onclick="javascript:setmode(this.form,'."'editxml'".')" />
706: <input type="button" name="submitmode" value="'.&mt('Edit').'" '.
707: 'onclick="javascript:setmode(this.form,'."'edit'".')" />
1.313 bisitz 708: <hr />
1.289 raeburn 709: <input type="button" name="submitmode" value="'.&mt("View").'" '.
710: 'onclick="javascript:setmode(this.form,'."'view'".')" />
1.313 bisitz 711: <hr />
1.278 albertel 712: </div>
1.101 albertel 713: </form>';
1.171 albertel 714: &Apache::lonxml::add_messages(\$result);
1.101 albertel 715: $request->print($result);
716: $request->rflush();
717: }
718:
1.109 albertel 719: sub analyze_footer {
720: my ($request) = @_;
1.237 albertel 721: $request->print(&Apache::loncommon::end_page());
1.109 albertel 722: $request->rflush();
723: }
724:
1.74 albertel 725: sub analyze {
1.101 albertel 726: my ($request,$file) = @_;
727: &Apache::lonxml::debug("Analyze");
728: my $result;
729: my %overall;
1.219 www 730: my %seedexample;
1.101 albertel 731: my %allparts;
1.204 albertel 732: my $rndseed=$env{'form.rndseed'};
1.101 albertel 733: &analyze_header($request);
1.114 albertel 734: my %prog_state=
1.146 albertel 735: &Apache::lonhtmlcommon::Create_PrgWin($request,&mt('Analyze Progress'),
736: &mt('Getting Problem Variants'),
1.204 albertel 737: $env{'form.numtoanalyze'},
1.175 albertel 738: 'inline',undef);
1.204 albertel 739: for(my $i=1;$i<$env{'form.numtoanalyze'}+1;$i++) {
1.114 albertel 740: &Apache::lonhtmlcommon::Increment_PrgWin($request,\%prog_state,
1.146 albertel 741: &mt('last problem'));
1.182 albertel 742: if (&Apache::loncommon::connection_aborted($request)) { return; }
1.219 www 743: my $thisseed=$i+$rndseed;
1.101 albertel 744: my $subresult=&Apache::lonnet::ssi($request->uri,
745: ('grade_target' => 'analyze'),
1.219 www 746: ('rndseed' => $thisseed));
1.101 albertel 747: (my $garbage,$subresult)=split(/_HASH_REF__/,$subresult,2);
748: my %analyze=&Apache::lonnet::str2hash($subresult);
1.114 albertel 749: my @parts;
750: if (defined(@{ $analyze{'parts'} })) {
751: @parts=@{ $analyze{'parts'} };
752: }
1.101 albertel 753: foreach my $part (@parts) {
754: if (!exists($allparts{$part})) {$allparts{$part}=1;};
1.109 albertel 755: if ($analyze{$part.'.type'} eq 'numericalresponse' ||
756: $analyze{$part.'.type'} eq 'stringresponse' ||
757: $analyze{$part.'.type'} eq 'formularesponse' ) {
1.263 albertel 758: foreach my $name (keys(%{ $analyze{$part.'.answer'} })) {
759: my $i=0;
760: foreach my $answer_part (@{ $analyze{$part.'.answer'}{$name} }) {
761: push( @{ $overall{$part.'.answer'}[$i] },
762: $answer_part);
763: my $concatanswer= join("\0",@{ $answer_part });
764: if (($concatanswer eq '') || ($concatanswer=~/^\@/)) {
1.266 albertel 765: $answer_part = ['<span class="LC_error">'.&mt('Error').'</span>'];
1.263 albertel 766: }
767: $seedexample{join("\0",$part,$i,@{$answer_part})}=
768: $thisseed;
769: $i++;
770: }
1.219 www 771: }
1.275 albertel 772: if (!keys(%{ $analyze{$part.'.answer'} })) {
773: my $answer_part =
774: ['<span class="LC_error">'.&mt('Error').'</span>'];
775: $seedexample{join("\0",$part,0,@{$answer_part})}=
776: $thisseed;
777: push( @{ $overall{$part.'.answer'}[0] },
778: $answer_part);
779: }
1.101 albertel 780: }
781: }
782: }
1.114 albertel 783: &Apache::lonhtmlcommon::Update_PrgWin($request,\%prog_state,
1.146 albertel 784: &mt('Analyzing Results'));
1.313 bisitz 785: $request->print('<hr />'
1.308 bisitz 786: .'<h3>'
787: .&mt('List of possible answers')
788: .'</h3>'
789: );
1.134 albertel 790: foreach my $part (sort(keys(%allparts))) {
1.109 albertel 791: if (defined(@{ $overall{$part.'.answer'} })) {
1.263 albertel 792: for (my $i=0;$i<scalar(@{ $overall{$part.'.answer'} });$i++) {
793: my $num_cols=scalar(@{ $overall{$part.'.answer'}[$i][0] });
1.308 bisitz 794: $request->print(&Apache::loncommon::start_data_table()
795: .&Apache::loncommon::start_data_table_header_row()
796: .'<th colspan="'.($num_cols+1).'">'
797: .&mt('Part').' '.$part
798: );
1.263 albertel 799: if (scalar(@{ $overall{$part.'.answer'} }) > 1) {
1.308 bisitz 800: $request->print(' '.&mt('Answer [_1]',$i+1));
1.263 albertel 801: }
1.308 bisitz 802: $request->print('</th>'
803: .&Apache::loncommon::end_data_table_header_row()
804: );
1.263 albertel 805: my %frequency;
806: foreach my $answer (sort {$a->[0] <=> $b->[0]} (@{ $overall{$part.'.answer'}[$i] })) {
807: $frequency{join("\0",@{ $answer })}++;
808: }
1.308 bisitz 809: $request->print(&Apache::loncommon::start_data_table_header_row()
810: .'<th colspan="'.($num_cols).'">'.&mt('Answer').'</th>'
811: .'<th>'.&mt('Frequency').'<br />'
812: .'('.&mt('click for example').')</th>'
813: .&Apache::loncommon::end_data_table_header_row()
814: );
1.263 albertel 815: foreach my $answer (sort {(split("\0",$a))[0] <=> (split("\0",$b))[0]} (keys(%frequency))) {
1.308 bisitz 816: $request->print(&Apache::loncommon::start_data_table_row()
817: .'<td>'
818: .join('</td><td>',split("\0",$answer))
819: .'</td>'
820: .'<td>'
821: .'<a href="'.$request->uri.'?rndseed='.$seedexample{join("\0",$part,$i,$answer)}.'">'.$frequency{$answer}.'</a>'
822: .'</td>'
823: .&Apache::loncommon::end_data_table_row()
824: );
1.263 albertel 825: }
1.308 bisitz 826: $request->print(&Apache::loncommon::end_data_table());
1.109 albertel 827: }
828: } else {
1.307 bisitz 829: $request->print('<p class="LC_warning">'
830: .&mt('Response [_1] is not analyzable at this time.',$part)
831: .'</p>'
832: );
1.101 albertel 833: }
834: }
1.130 albertel 835: if (scalar(keys(%allparts)) == 0 ) {
1.307 bisitz 836: $request->print('<p class="LC_warning">'
837: .&mt('Found no analyzable responses in this problem.'
838: .' Currently only Numerical, Formula and String response styles are supported.')
839: .'</p>'
840: );
1.130 albertel 841: }
1.114 albertel 842: &Apache::lonhtmlcommon::Close_PrgWin($request,\%prog_state);
1.109 albertel 843: &analyze_footer($request);
1.101 albertel 844: &Apache::lonhomework::showhash(%overall);
845: return $result;
1.74 albertel 846: }
847:
1.277 albertel 848: {
849: my $show_problem_status;
850: sub reset_show_problem_status {
851: undef($show_problem_status);
852: }
853:
854: sub set_show_problem_status {
855: my ($new_status) = @_;
856: $show_problem_status = lc($new_status);
857: }
858:
859: sub hide_problem_status {
860: return ($show_problem_status eq 'no'
861: || $show_problem_status eq 'no_feedback_ever');
862: }
863:
864: sub show_problem_status {
865: return ($show_problem_status eq 'yes'
1.285 albertel 866: || $show_problem_status eq 'answer'
1.277 albertel 867: || $show_problem_status eq '');
868: }
869:
870: sub show_some_problem_status {
871: return ($show_problem_status eq 'no');
872: }
873:
874: sub show_no_problem_status {
875: return ($show_problem_status eq 'no_feedback_ever');
876: }
1.285 albertel 877:
878: sub show_answer_problem_status {
879: return ($show_problem_status eq 'answer');
880: }
1.277 albertel 881: }
882:
1.64 albertel 883: sub editxmlmode {
1.145 albertel 884: my ($request,$file) = @_;
885: my $result;
886: my $problem=&Apache::lonnet::getfile($file);
887: if ($problem eq -1) {
1.305 bisitz 888: &Apache::lonxml::error(
889: '<b> '
890: .&mt('Unable to find [_1]',
891: '<span class="LC_filename">'.$file.'</span>')
892: .'</b>');
893:
1.145 albertel 894: $problem='';
895: }
1.204 albertel 896: if (defined($env{'form.editxmltext'}) || defined($env{'form.Undo'})) {
1.145 albertel 897: my $error=&handle_save_or_undo($request,\$problem,
1.204 albertel 898: \$env{'form.editxmltext'});
1.145 albertel 899: if (!$error) { $problem=&Apache::lonnet::getfile($file); }
900: }
1.204 albertel 901: &Apache::lonhomework::showhashsubset(\%env,'^form');
1.289 raeburn 902: if ( $env{'form.submitbutton'} eq &mt('Save and View') ) {
1.204 albertel 903: &Apache::lonhomework::showhashsubset(\%env,'^form');
1.289 raeburn 904: $env{'form.problemmode'}='view';
1.145 albertel 905: &renderpage($request,$file);
906: } else {
907: my ($rows,$cols) = &Apache::edit::textarea_sizes(\$problem);
908: if ($cols > 80) { $cols = 80; }
909: if ($cols < 70) { $cols = 70; }
910: if ($rows < 20) { $rows = 20; }
1.269 albertel 911: my $js =
912: &Apache::edit::js_change_detection().
1.289 raeburn 913: &Apache::loncommon::resize_textarea_js().
1.296 raeburn 914: &Apache::structuretags::setmode_javascript().
1.298 foxr 915: &Apache::lonhtmlcommon::dragmath_js("EditMathPopup");
1.296 raeburn 916: my $dragmath_button =
917: &Apache::lonhtmlcommon::dragmath_button("LC_editxmltext",1);
1.312 bisitz 918:
919: # Breadcrumbs
920: my $brcrum = [{'href' => &Apache::loncommon::authorspace(),
921: 'text' => 'Construction Space'},
922: {'href' => '',
923: 'text' => 'Problem Editing'}];
924:
1.238 albertel 925: my $start_page =
1.269 albertel 926: &Apache::loncommon::start_page(&mt("EditXML [_1]",$file),$js,
927: {'no_auto_mt_title' => 1,
1.318 droeschl 928: 'only_body' => 0,
1.269 albertel 929: 'add_entries' => {
930: 'onresize' => q[resize_textarea('LC_editxmltext','LC_aftertextarea')],
931: 'onload' => q[resize_textarea('LC_editxmltext','LC_aftertextarea')],
1.312 bisitz 932: },
933: 'bread_crumbs' => $brcrum,
934: });
1.311 bisitz 935:
936: $result=$start_page
937: .&Apache::loncommon::head_subbox(
938: &Apache::loncommon::CSTR_pageheader());
939: $result.=&renderpage($request,$file,['no_output_web'],1).
1.310 bisitz 940: '<form '.&Apache::edit::form_change_detection().' name="lonhomework" method="post" action="'.
1.204 albertel 941: &HTML::Entities::encode($env{'request.uri'},'<>&"').'">'.
1.179 albertel 942: &Apache::structuretags::remember_problem_state().'
1.278 albertel 943: <div class="LC_edit_problem_editxml_header">
1.280 albertel 944: <table class="LC_edit_problem_header_title"><tr><td>
1.317 bisitz 945: <h2>'.&mt('Problem Editing').' '.&Apache::loncommon::help_open_topic('Problem_Editor_XML_Index').'</h2>
1.280 albertel 946: </td><td align="right">
1.301 jms 947: '.&Apache::loncommon::helpLatexCheatsheet('Problem_LON-CAPA_Functions','Script Functions').'
1.280 albertel 948: </td></tr>
949: </table>
950: <div class="LC_edit_problem_discards">
1.289 raeburn 951: <input type="hidden" name="problemmode" value="editxml" />
1.294 foxr 952:
1.289 raeburn 953: <input type="button" name="submitmode" accesskey="d" value="'.&mt('Discard Edits and View').'" '.
954: 'onclick="javascript:setmode(this.form,'."'discard'".')" />
955: <input type="button" '.&Apache::edit::submit_ask_anyway('setmode(this.form,'."'edit'".')').'name="submitmode" accesskey="e" value="'.&mt('Edit').'" />
1.280 albertel 956: <input type="submit" name="Undo" accesskey="u" value="'.&mt('undo').'" />
1.296 raeburn 957: '.$dragmath_button.'
1.280 albertel 958: </div>
959: <div class="LC_edit_problem_saves">
1.289 raeburn 960: <input type="submit" name="submitbutton" accesskey="s" value="'.&mt('Save').'" />
1.296 raeburn 961: <input type="submit" name="submitbutton" accesskey="v" value="'.&mt('Save and View').'" />
1.280 albertel 962: </div>
1.316 bisitz 963: <hr style="clear:both;" />
1.281 albertel 964: '.&Apache::lonxml::message_location().'
1.278 albertel 965: </div>
1.280 albertel 966: ' . '
1.269 albertel 967: <textarea '.&Apache::edit::element_change_detection().
968: ' rows="'.$rows.'" cols="'.$cols.'" style="width:100%" '.
969: ' name="editxmltext" id="LC_editxmltext">'.
970: &HTML::Entities::encode($problem,'<>&"').'</textarea>
971: <div id="LC_aftertextarea">
972: </div>
1.238 albertel 973: </form>'.&Apache::loncommon::end_page();
1.171 albertel 974: &Apache::lonxml::add_messages(\$result);
1.145 albertel 975: $request->print($result);
976: }
977: return '';
1.47 albertel 978: }
1.189 albertel 979:
1.301 jms 980: #
981: # Render the page in whatever target desired.
982: #
1.41 albertel 983: sub renderpage {
1.213 albertel 984: my ($request,$file,$targets,$return_string) = @_;
1.52 albertel 985:
1.211 albertel 986: my @targets = @{$targets || [&get_target()]};
1.204 albertel 987: &Apache::lonhomework::showhashsubset(\%env,'form.');
1.145 albertel 988: &Apache::lonxml::debug("Running targets ".join(':',@targets));
1.268 albertel 989:
1.171 albertel 990: my $overall_result;
1.145 albertel 991: foreach my $target (@targets) {
1.183 albertel 992: # FIXME need to do something intelligent when a problem goes
993: # from viewable to not viewable due to map conditions
994: #&setuppermissions();
995: #if ( $Apache::lonhomework::browse ne '2'
996: # && $Apache::lonhomework::browse ne 'F' ) {
997: # $request->print(" You most likely shouldn't see me.");
998: #}
1.145 albertel 999: #my $t0 = [&gettimeofday()];
1.211 albertel 1000: my $output=1;
1001: if ($target eq 'no_output_web') {
1002: $target = 'web'; $output=0;
1003: }
1.145 albertel 1004: my $problem=&Apache::lonnet::getfile($file);
1.222 albertel 1005: my $result;
1.145 albertel 1006: if ($problem eq -1) {
1.260 albertel 1007: $problem='';
1.222 albertel 1008: my $filename=(split('/',$file))[-1];
1.260 albertel 1009: my $error =
1010: "<b> ".&mt('Unable to find [_1]',
1.305 bisitz 1011: '<span class="LC_filename">'.$filename.'</span>')
1.260 albertel 1012: ."</b>";
1013: $result.=
1014: &Apache::loncommon::simple_error_page($request,'Not available',
1015: $error);
1016: return;
1.145 albertel 1017: }
1.52 albertel 1018:
1.145 albertel 1019: my %mystyle;
1020: if ($target eq 'analyze') { %Apache::lonhomework::analyze=(); }
1021: if ($target eq 'answer') { &showhash(%Apache::lonhomework::history); }
1.204 albertel 1022: if ($target eq 'web') {&Apache::lonhomework::showhashsubset(\%env,'^form');}
1.145 albertel 1023:
1024: &Apache::lonxml::debug("Should be parsing now");
1.222 albertel 1025: $result .= &Apache::lonxml::xmlparse($request, $target, $problem,
1026: &setup_vars($target),%mystyle);
1.273 albertel 1027: &finished_parsing();
1.214 albertel 1028: if (!$output) { $result = ''; }
1.145 albertel 1029: #$request->print("Result follows:");
1030: if ($target eq 'modified') {
1031: &handle_save_or_undo($request,\$problem,\$result);
1032: } else {
1033: if ($target eq 'analyze') {
1034: $result=&Apache::lonnet::hashref2str(\%Apache::lonhomework::analyze);
1035: undef(%Apache::lonhomework::analyze);
1036: }
1037: #my $td=&tv_interval($t0);
1038: #if ( $Apache::lonxml::debug) {
1039: #$result =~ s:</body>::;
1040: #$result.="<br />Spent $td seconds processing target $target\n</body>";
1041: #}
1.171 albertel 1042: # $request->print($result);
1043: $overall_result.=$result;
1044: # $request->rflush();
1.145 albertel 1045: }
1046: #$request->print(":Result ends");
1047: #my $td=&tv_interval($t0);
1.52 albertel 1048: }
1.213 albertel 1049: if (!$return_string) {
1050: &Apache::lonxml::add_messages(\$overall_result);
1051: $request->print($overall_result);
1052: $request->rflush();
1053: } else {
1054: return $overall_result;
1055: }
1.41 albertel 1056: }
1057:
1.273 albertel 1058: sub finished_parsing {
1059: undef($Apache::lonhomework::parsing_a_problem);
1060: undef($Apache::lonhomework::parsing_a_task);
1061: }
1062:
1.42 albertel 1063: sub get_template_list {
1.282 albertel 1064: my ($extension) = @_;
1.145 albertel 1065: my $result;
1066: my @allnames;
1067: &Apache::lonxml::debug("Looking for :$extension:");
1.282 albertel 1068: my $glob_extension = $extension;
1069: if ($extension eq 'survey' || $extension eq 'exam') {
1070: $glob_extension = 'problem';
1071: }
1072: my @files = glob($Apache::lonnet::perlvar{'lonIncludes'}.
1073: '/templates/*.'.$glob_extension);
1.292 www 1074: @files = map {[$_,&mt(&Apache::lonnet::metadata($_, 'title')),
1075: (&Apache::lonnet::metadata($_, 'category')?&mt(&Apache::lonnet::metadata($_, 'category')):&mt('Miscellaneous')),
1076: &mt(&Apache::lonnet::metadata($_, 'help'))]} (@files);
1077: @files = sort {$a->[2].$a->[1] cmp $b->[2].$b->[1]} (@files);
1.287 raeburn 1078: my ($midpoint,$seconddiv,$numfiles);
1079: $numfiles = 0;
1080: foreach my $file (@files) {
1081: next if ($file->[1] !~ /\S/);
1082: $numfiles ++;
1083: }
1084: if ($numfiles > 0) {
1085: $result = '<div class="LC_left_float">';
1086: $midpoint = int($numfiles/2);
1087: if ($numfiles%2) {
1088: $midpoint ++;
1089: }
1090: }
1091: my $count = 0;
1.292 www 1092: my $currentcategory='';
1.314 bisitz 1093: my $first = 1;
1.282 albertel 1094: foreach my $file (@files) {
1095: next if ($file->[1] !~ /\S/);
1.292 www 1096: if ($file->[2] ne $currentcategory) {
1097: $currentcategory=$file->[2];
1098: if ((!$seconddiv) && ($count >= $midpoint)) {
1.314 bisitz 1099: $result .= '</div></div>'."\n".'<div class="LC_left_float">'."\n";
1.292 www 1100: $seconddiv = 1;
1.314 bisitz 1101: } elsif (!$first) {
1102: $result.='</div>'."\n";
1103: } else {
1104: $first = 0;
1.292 www 1105: }
1.314 bisitz 1106: $result.= '<div class="LC_Box">'."\n"
1107: .'<h3 class="LC_hcell">'.$currentcategory.'</h3>'."\n";
1.293 www 1108: $count++;
1.292 www 1109: }
1.282 albertel 1110: $result .=
1111: '<label><input type="radio" name="template" value="'.$file->[0].'" />'.
1.292 www 1112: $file->[1].'</label>';
1113: if ($file->[3]) {
1114: $result.=&Apache::loncommon::help_open_topic($file->[3]);
1115: }
1116: my $filename=$file->[0];
1117: $filename=~s/^\/home\/httpd\/html//;
1.314 bisitz 1118: $result.=' <span class="LC_fontsize_small">'
1.315 droeschl 1119: .'<a href="'.$filename.'?inhibitmenu=yes" target="sample">'.&mt('Example').'</a>'
1.314 bisitz 1120: .'</span><br />'."\n";
1.287 raeburn 1121: $count ++;
1122: }
1123: if ($numfiles > 0) {
1.314 bisitz 1124: $result .= '</div></div>'."\n".'<div class="LC_clear_float_footer"></div>'."\n";
1.42 albertel 1125: }
1.145 albertel 1126: return $result;
1.42 albertel 1127: }
1128:
1129: sub newproblem {
1.65 matthew 1130: my ($request) = @_;
1.282 albertel 1131:
1132: if ($env{'form.template'}) {
1133: my $file = $env{'form.template'};
1.65 matthew 1134: my $dest = &Apache::lonnet::filelocation("",$request->uri);
1.282 albertel 1135: &File::Copy::copy($file,$dest);
1.65 matthew 1136: &renderpage($request,$dest);
1.282 albertel 1137: return;
1138: }
1139:
1140: my ($extension) = ($request->uri =~ m/\.(\w+)$/);
1141: &Apache::lonxml::debug("Looking for :$extension:");
1142: my $templatelist=&get_template_list($extension);
1143: if ($env{'form.newfile'} && !$templatelist) {
1144: # no templates found
1.131 albertel 1145: my $templatefilename =
1.258 albertel 1146: $request->dir_config('lonIncludes').'/templates/blank.'.$extension;
1.131 albertel 1147: &Apache::lonxml::debug("$templatefilename");
1148: my $dest = &Apache::lonnet::filelocation("",$request->uri);
1.282 albertel 1149: &File::Copy::copy($templatefilename,$dest);
1.131 albertel 1150: &renderpage($request,$dest);
1.85 albertel 1151: } else {
1.176 albertel 1152: my $url=&HTML::Entities::encode($request->uri,'<>&"');
1153: my $shownurl=$url;
1.157 albertel 1154: $shownurl=~s-^/~-/priv/-;
1.65 matthew 1155: my $dest = &Apache::lonnet::filelocation("",$request->uri);
1.128 albertel 1156: my $errormsg;
1.85 albertel 1157: my $instructions;
1.312 bisitz 1158: my $brcrum = [{'href' => &Apache::loncommon::authorspace(),
1159: 'text' => 'Construction Space'},
1160: {'href' => '',
1161: 'text' => "Create New $extension"}];
1.240 albertel 1162: my $start_page =
1.312 bisitz 1163: &Apache::loncommon::start_page("Create New $extension",
1164: undef,
1165: {'bread_crumbs' => $brcrum,});
1.311 bisitz 1166: $request->print(
1167: $start_page
1168: .&Apache::loncommon::head_subbox(
1169: &Apache::loncommon::CSTR_pageheader())
1170: .'<h1>'.&mt("Creating a new $extension resource.")."</h1>
1.128 albertel 1171: $errormsg
1.258 albertel 1172: ".&mt("The requested file [_1] currently does not exist.",
1.314 bisitz 1173: '<span class="LC_filename">'.$shownurl.'</span>').'
1174: <p class="LC_info">
1175: '.&mt("To create a new $extension, select a template from the".
1176: " list below. Then click on the \"Create $extension\" button.").'
1177: </p><div><form action="'.$url.'" method="post">');
1.258 albertel 1178:
1.85 albertel 1179: if (defined($templatelist)) {
1.282 albertel 1180: $request->print($templatelist);
1.85 albertel 1181: }
1.282 albertel 1182: $request->print('<br /><input type="submit" name="newfile" value="'.
1183: &mt("Create $extension").'" />');
1.314 bisitz 1184: $request->print('</form></div>'.&Apache::loncommon::end_page());
1.65 matthew 1185: }
1.282 albertel 1186: return;
1.42 albertel 1187: }
1188:
1.268 albertel 1189: sub update_construct_style {
1190: if ($env{'request.state'} eq "construct"
1.289 raeburn 1191: && $env{'form.problemmode'} eq 'view'
1.268 albertel 1192: && defined($env{'form.submitted'})
1193: && !defined($env{'form.resetdata'})
1194: && !defined($env{'form.newrandomization'})) {
1195: if ((!$env{'form.style_file'} && $env{'construct.style'})
1196: ||$env{'form.clear_style_file'}) {
1.303 raeburn 1197: &Apache::lonnet::delenv('construct.style');
1.268 albertel 1198: } elsif ($env{'form.style_file'}
1199: && $env{'construct.style'} ne $env{'form.style_file'}) {
1.291 raeburn 1200: &Apache::lonnet::appenv({'construct.style' =>
1201: $env{'form.style_file'}});
1.268 albertel 1202: }
1203: }
1204: }
1205:
1206:
1.41 albertel 1207: sub handler {
1.145 albertel 1208: #my $t0 = [&gettimeofday()];
1209: my $request=$_[0];
1.223 albertel 1210: $Apache::lonxml::request=$request;
1.204 albertel 1211: $Apache::lonxml::debug=$env{'user.debug'};
1212: $env{'request.uri'}=$request->uri;
1.180 albertel 1213: &setuppermissions();
1.193 albertel 1214:
1.145 albertel 1215: my $file=&Apache::lonnet::filelocation("",$request->uri);
1216:
1217: #check if we know where we are
1.204 albertel 1218: if ($env{'request.course.fn'} && !&Apache::lonnet::symbread()) {
1.145 albertel 1219: # if we are browsing we might not be able to know where we are
1.173 albertel 1220: if ($Apache::lonhomework::browse ne 'F' &&
1.204 albertel 1221: $env{'request.state'} ne "construct") {
1.145 albertel 1222: #should know where we are, so ask
1.253 albertel 1223: &unset_permissions();
1224: $request->internal_redirect('/adm/ambiguous');
1225: return OK;
1.145 albertel 1226: }
1227: }
1.253 albertel 1228: if (&setupheader($request)) {
1229: &unset_permissions();
1230: return OK;
1231: }
1.244 albertel 1232: &Apache::lonxml::debug("Permissions:$Apache::lonhomework::browse:$Apache::lonhomework::viewgrades:$Apache::lonhomework::modifygrades:$Apache::lonhomework::queuegrade");
1.204 albertel 1233: &Apache::lonxml::debug("Problem Mode ".$env{'form.problemmode'});
1.261 albertel 1234: my ($symb) = &Apache::lonnet::whichuser();
1.145 albertel 1235: &Apache::lonxml::debug('symb is '.$symb);
1.204 albertel 1236: if ($env{'request.state'} eq "construct") {
1.145 albertel 1237: if ( -e $file ) {
1238: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
1239: ['problemmode']);
1.204 albertel 1240: if (!(defined $env{'form.problemmode'})) {
1.145 albertel 1241: #first visit to problem in construction space
1.289 raeburn 1242: $env{'form.problemmode'}= 'view';
1.145 albertel 1243: &renderpage($request,$file);
1.289 raeburn 1244: } elsif ($env{'form.problemmode'} eq 'editxml') {
1.145 albertel 1245: &editxmlmode($request,$file);
1.289 raeburn 1246: } elsif ($env{'form.problemmode'} eq 'calcanswers') {
1.145 albertel 1247: &analyze($request,$file);
1248: } else {
1.268 albertel 1249: &update_construct_style();
1.145 albertel 1250: &renderpage($request,$file);
1251: }
1252: } else {
1253: # requested file doesn't exist in contruction space
1254: &newproblem($request);
1255: }
1256: } else {
1257: # just render the page normally outside of construction space
1258: &Apache::lonxml::debug("not construct");
1.52 albertel 1259: &renderpage($request,$file);
1.41 albertel 1260: }
1.145 albertel 1261: #my $td=&tv_interval($t0);
1262: #&Apache::lonxml::debug("Spent $td seconds processing");
1263: # always turn off debug messages
1264: $Apache::lonxml::debug=0;
1.253 albertel 1265: &unset_permissions();
1.145 albertel 1266: return OK;
1.52 albertel 1267:
1.1 albertel 1268: }
1269:
1270: 1;
1271: __END__
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