Annotation of loncom/homework/lonhomework.pm, revision 1.322
1.63 albertel 1: # The LearningOnline Network with CAPA
1.52 albertel 2: # The LON-CAPA Homework handler
1.63 albertel 3: #
1.322 ! raeburn 4: # $Id: lonhomework.pm,v 1.321 2010/09/27 22:15:32 www Exp $
1.63 albertel 5: #
6: # Copyright Michigan State University Board of Trustees
7: #
8: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
9: #
10: # LON-CAPA is free software; you can redistribute it and/or modify
11: # it under the terms of the GNU General Public License as published by
12: # the Free Software Foundation; either version 2 of the License, or
13: # (at your option) any later version.
14: #
15: # LON-CAPA is distributed in the hope that it will be useful,
16: # but WITHOUT ANY WARRANTY; without even the implied warranty of
17: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18: # GNU General Public License for more details.
19: #
20: # You should have received a copy of the GNU General Public License
21: # along with LON-CAPA; if not, write to the Free Software
22: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23: #
24: # /home/httpd/html/adm/gpl.txt
25: #
26: # http://www.lon-capa.org/
1.159 www 27:
1.1 albertel 28:
29: package Apache::lonhomework;
30: use strict;
1.73 albertel 31: use Apache::style();
32: use Apache::lonxml();
1.204 albertel 33: use Apache::lonnet;
1.73 albertel 34: use Apache::lonplot();
35: use Apache::inputtags();
36: use Apache::structuretags();
37: use Apache::randomlabel();
38: use Apache::response();
39: use Apache::hint();
40: use Apache::outputtags();
1.83 albertel 41: use Apache::caparesponse();
42: use Apache::radiobuttonresponse();
43: use Apache::optionresponse();
44: use Apache::imageresponse();
45: use Apache::essayresponse();
46: use Apache::externalresponse();
1.106 albertel 47: use Apache::rankresponse();
1.107 albertel 48: use Apache::matchresponse();
1.137 albertel 49: use Apache::chemresponse();
1.321 www 50: use Apache::functionplotresponse();
1.169 albertel 51: use Apache::drawimage();
1.26 www 52: use Apache::Constants qw(:common);
1.83 albertel 53: use Apache::loncommon();
1.146 albertel 54: use Apache::lonlocal;
1.179 albertel 55: use Time::HiRes qw( gettimeofday tv_interval );
1.282 albertel 56: use HTML::Entities();
57: use File::Copy();
1.188 foxr 58:
1.189 albertel 59: # FIXME - improve commenting
1.188 foxr 60:
1.43 albertel 61:
1.69 harris41 62: BEGIN {
1.145 albertel 63: &Apache::lonxml::register_insert();
1.43 albertel 64: }
65:
1.188 foxr 66:
1.276 foxr 67: =pod
68:
69: =item set_bubble_lines()
70:
71: Called at analysis time to set the bubble lines
72: hash for the problem.. This should be called in the
73: end_problemtype tag in analysis mode.
74:
75: We fetch the hash of part id counters from lonxml
76: and push them into analyze:{part_id.bubble_lines}.
77:
78: =cut
79:
80: sub set_bubble_lines {
81: my %bubble_counters = &Apache::lonxml::get_bubble_line_hash();
82:
83: foreach my $key (keys(%bubble_counters)) {
84: $Apache::lonhomework::analyze{"$key.bubble_lines"} =
85: $bubble_counters{"$key"};
86: }
87: }
88:
1.301 jms 89: #
90: # Decides what targets to render for.
91: # Implicit inputs:
92: # Various session environment variables:
93: # request.state - published - is a /res/ resource
94: # uploaded - is a /uploaded/ resource
95: # contruct - is a /priv/ resource
96: # form.grade_target - a form parameter requesting a specific target
1.5 albertel 97: sub get_target {
1.204 albertel 98: &Apache::lonxml::debug("request.state = $env{'request.state'}");
99: if( defined($env{'form.grade_target'})) {
100: &Apache::lonxml::debug("form.grade_target= $env{'form.grade_target'}");
1.188 foxr 101: } else {
1.189 albertel 102: &Apache::lonxml::debug("form.grade_target <undefined>");
1.188 foxr 103: }
1.204 albertel 104: if (($env{'request.state'} eq "published") ||
105: ($env{'request.state'} eq "uploaded")) {
106: if ( defined($env{'form.grade_target'} )
107: && ($env{'form.grade_target'} eq 'tex')) {
108: return ($env{'form.grade_target'});
109: } elsif ( defined($env{'form.grade_target'} )
1.145 albertel 110: && ($Apache::lonhomework::viewgrades eq 'F' )) {
1.207 albertel 111: return ($env{'form.grade_target'});
1.244 albertel 112: } elsif ( $env{'form.grade_target'} eq 'webgrade'
113: && ($Apache::lonhomework::queuegrade eq 'F' )) {
114: return ($env{'form.grade_target'});
1.320 raeburn 115: } elsif ($env{'form.grade_target'} eq 'answer') {
116: if ($env{'form.answer_output_mode'} eq 'tex') {
117: return ($env{'form.grade_target'});
118: }
119: }
1.207 albertel 120: if ($env{'form.webgrade'} &&
1.244 albertel 121: ($Apache::lonhomework::modifygrades eq 'F'
122: || $Apache::lonhomework::queuegrade eq 'F' )) {
1.207 albertel 123: return ('grade','webgrade');
1.145 albertel 124: }
1.204 albertel 125: if ( defined($env{'form.submitted'}) &&
126: ( !defined($env{'form.newrandomization'}))) {
1.217 albertel 127: return ('grade', 'web');
1.145 albertel 128: } else {
1.217 albertel 129: return ('web');
1.145 albertel 130: }
1.204 albertel 131: } elsif ($env{'request.state'} eq "construct") {
132: if ( defined($env{'form.grade_target'}) ) {
133: return ($env{'form.grade_target'});
1.145 albertel 134: }
1.204 albertel 135: if ( defined($env{'form.preview'})) {
136: if ( defined($env{'form.submitted'})) {
1.145 albertel 137: return ('grade', 'web');
138: } else {
139: return ('web');
140: }
141: } else {
1.267 albertel 142: if ($env{'form.problemstate'} eq 'WEB_GRADE') {
143: #$env{'form.webgrade'} = 'yes';
144: return ('grade','webgrade','answer');
1.289 raeburn 145: } elsif (($env{'form.problemmode'} eq 'view') ||
146: ($env{'form.problemmode'} eq 'discard')) {
1.204 albertel 147: if ( defined($env{'form.submitted'}) &&
148: (!defined($env{'form.resetdata'})) &&
149: (!defined($env{'form.newrandomization'}))) {
1.145 albertel 150: return ('grade', 'web','answer');
151: } else {
152: return ('web','answer');
153: }
1.289 raeburn 154: } elsif ($env{'form.problemmode'} eq 'edit') {
1.204 albertel 155: if ( $env{'form.submitted'} eq 'edit' ) {
1.289 raeburn 156: if ( $env{'form.submitbutton'} eq &mt('Save and View') ) {
1.145 albertel 157: return ('modified','web','answer');
158: } else {
1.211 albertel 159: return ('modified','no_output_web','edit');
1.145 albertel 160: }
161: } else {
1.211 albertel 162: return ('no_output_web','edit');
1.145 albertel 163: }
164: } else {
165: return ('web');
166: }
167: }
1.15 albertel 168: }
1.145 albertel 169: return ();
1.5 albertel 170: }
171:
1.3 albertel 172: sub setup_vars {
1.145 albertel 173: my ($target) = @_;
174: return ';'
1.11 albertel 175: # return ';$external::target='.$target.';';
1.2 albertel 176: }
177:
1.200 albertel 178: sub proctor_checked_in {
1.226 albertel 179: my ($slot_name,$slot,$type)=@_;
180: my @possible_proctors=split(",",$slot->{'proctor'});
181:
1.248 albertel 182: return 1 if (!@possible_proctors);
183:
1.226 albertel 184: my $key;
185: if ($type eq 'Task') {
1.230 albertel 186: my $version=$Apache::lonhomework::history{'resource.0.version'};
187: $key ="resource.$version.0.checkedin";
1.226 albertel 188: } elsif ($type eq 'problem') {
189: $key ='resource.0.checkedin';
190: }
1.249 albertel 191: # backward compatability, used to be username@domain,
192: # now is username:domain
193: my $who = $Apache::lonhomework::history{$key};
194: if ($who !~ /:/) {
195: $who =~ tr/@/:/;
196: }
1.226 albertel 197: foreach my $possible (@possible_proctors) {
1.249 albertel 198: if ($who eq $possible
1.226 albertel 199: && $Apache::lonhomework::history{$key.'.slot'} eq $slot_name) {
1.202 albertel 200: return 1;
201: }
202: }
1.226 albertel 203:
1.200 albertel 204: return 0;
205: }
206:
1.226 albertel 207: sub check_slot_access {
208: my ($id,$type)=@_;
209:
1.207 albertel 210: # does it pass normal muster
1.226 albertel 211: my ($status,$datemsg)=&check_access($id);
212:
1.252 albertel 213: my $useslots = &Apache::lonnet::EXT("resource.0.useslots");
1.251 albertel 214: if ($useslots ne 'resource' && $useslots ne 'map'
215: && $useslots ne 'map_map') {
1.226 albertel 216: return ($status,$datemsg);
217: }
218:
1.200 albertel 219: if ($status eq 'SHOW_ANSWER' ||
220: $status eq 'CLOSED' ||
221: $status eq 'INVALID_ACCESS' ||
222: $status eq 'UNAVAILABLE') {
223: return ($status,$datemsg);
224: }
1.204 albertel 225: if ($env{'request.state'} eq "construct") {
1.203 albertel 226: return ($status,$datemsg);
227: }
1.226 albertel 228:
229: if ($type eq 'Task') {
230: my $version=$Apache::lonhomework::history{'resource.version'};
1.230 albertel 231: if ($Apache::lonhomework::history{"resource.$version.0.checkedin"} &&
232: $Apache::lonhomework::history{"resource.$version.0.status"} eq 'pass') {
1.226 albertel 233: return ('SHOW_ANSWER');
234: }
1.207 albertel 235: }
1.226 albertel 236:
1.288 raeburn 237: my $availablestudent = &Apache::lonnet::EXT("resource.0.availablestudent");
238: my $available = &Apache::lonnet::EXT("resource.0.available");
239: my @slots= (split(':',$availablestudent),split(':',$available));
1.210 albertel 240:
1.200 albertel 241: # if (!@slots) {
242: # return ($status,$datemsg);
243: # }
244: my $slotstatus='NOT_IN_A_SLOT';
1.206 albertel 245: my ($returned_slot,$slot_name);
1.210 albertel 246: foreach my $slot (@slots) {
1.241 albertel 247: $slot =~ s/(^\s*|\s*$)//g;
1.201 albertel 248: &Apache::lonxml::debug("getting $slot");
1.200 albertel 249: my %slot=&Apache::lonnet::get_slot($slot);
1.201 albertel 250: &Apache::lonhomework::showhash(%slot);
1.200 albertel 251: if ($slot{'starttime'} < time &&
252: $slot{'endtime'} > time &&
1.297 raeburn 253: &Apache::loncommon::check_ip_acc($slot{'ip'})) {
1.202 albertel 254: &Apache::lonxml::debug("$slot is good");
255: $slotstatus='NEEDS_CHECKIN';
256: $returned_slot=\%slot;
1.206 albertel 257: $slot_name=$slot;
1.200 albertel 258: last;
259: }
260: }
1.202 albertel 261: if ($slotstatus eq 'NEEDS_CHECKIN' &&
1.226 albertel 262: &proctor_checked_in($slot_name,$returned_slot,$type)) {
1.322 ! raeburn 263: &Apache::lonxml::debug("proctor checked in");
! 264: $slotstatus=$status;
1.200 albertel 265: }
1.226 albertel 266:
1.235 albertel 267: my ($is_correct,$got_grade,$checkedin);
1.226 albertel 268: if ($type eq 'Task') {
1.230 albertel 269: my $version=$Apache::lonhomework::history{'resource.0.version'};
1.231 albertel 270: $got_grade =
271: ($Apache::lonhomework::history{"resource.$version.0.status"}
272: =~ /^(?:pass|fail)$/);
1.235 albertel 273: $is_correct =
274: ($Apache::lonhomework::history{"resource.$version.0.status"} eq 'pass'
275: || $Apache::lonhomework::history{"resource.0.solved"} =~ /^correct_/ );
1.226 albertel 276: $checkedin =
1.230 albertel 277: $Apache::lonhomework::history{"resource.$version.0.checkedin"};
1.226 albertel 278: } elsif ($type eq 'problem') {
1.252 albertel 279: $got_grade = 1;
280: $checkedin = $Apache::lonhomework::history{"resource.0.checkedin"};
281: $is_correct =
282: ($Apache::lonhomework::history{"resource.0.solved"} =~/^correct_/);
1.226 albertel 283: }
284:
1.235 albertel 285: &Apache::lonxml::debug(" slot is $slotstatus checkedin ($checkedin) got_grade ($got_grade) is_correct ($is_correct)");
286:
1.243 albertel 287: # no slot is currently open, and has been checked in for this version
288: # but hasn't got a grade, therefore must be awaiting a grade
289: if (!defined($slot_name)
290: && $checkedin
1.236 albertel 291: && !$got_grade) {
292: return ('WAITING_FOR_GRADE');
293: }
294:
1.309 raeburn 295: # Previously used slot is no longer open, and has been checked in for this version.
296: # However, the problem is not closed, and potentially, another slot might be
297: # used to gain access to it to work on it, until the due date is reached, and the
298: # problem then becomes CLOSED. Therefore return the slotstatus -
299: # (which will be NOT_IN_SLOT).
1.252 albertel 300: if (!defined($slot_name)
301: && $checkedin
302: && $type eq 'problem') {
1.309 raeburn 303: return ($slotstatus);
1.252 albertel 304: }
305:
1.226 albertel 306: if ($slotstatus eq 'NOT_IN_A_SLOT'
307: && $checkedin ) {
308:
1.231 albertel 309: if ($got_grade) {
1.209 albertel 310: return ('SHOW_ANSWER');
311: } else {
312: return ('WAITING_FOR_GRADE');
313: }
1.226 albertel 314:
1.207 albertel 315: }
1.255 albertel 316:
1.235 albertel 317: if ( $is_correct) {
1.255 albertel 318: if ($type eq 'problem') {
319: return ($status);
320: }
1.235 albertel 321: return ('SHOW_ANSWER');
322: }
1.255 albertel 323:
1.225 albertel 324: if ( $status eq 'CANNOT_ANSWER' &&
325: ($slotstatus ne 'NEEDS_CHECKIN' && $slotstatus ne 'NOT_IN_A_SLOT')) {
326: return ($status,$datemsg);
327: }
328:
1.206 albertel 329: return ($slotstatus,$datemsg,$slot_name,$returned_slot);
1.198 albertel 330: }
1.200 albertel 331:
1.301 jms 332: # JB, 9/24/2002: Any changes in this function may require a change
333: # in lonnavmaps::resource::getDateStatus.
1.53 www 334: sub check_access {
1.145 albertel 335: my ($id) = @_;
336: my $date ='';
337: my $status;
338: my $datemsg = '';
339: my $lastdate = '';
340: my $type;
341: my $passed;
342:
1.204 albertel 343: if ($env{'request.state'} eq "construct") {
344: if ($env{'form.problemstate'}) {
345: if ($env{'form.problemstate'} =~ /^CANNOT_ANSWER/) {
1.277 albertel 346: if ( ! ($env{'form.problemstate'} eq 'CANNOT_ANSWER_correct'
347: && &hide_problem_status())) {
1.168 albertel 348: return ('CANNOT_ANSWER',
1.174 www 349: &mt('is in this state due to author settings.'));
1.167 albertel 350: }
1.165 albertel 351: } else {
1.204 albertel 352: return ($env{'form.problemstate'},
1.174 www 353: &mt('is in this state due to author settings.'));
1.165 albertel 354: }
355: }
1.145 albertel 356: &Apache::lonxml::debug("in construction ignoring dates");
357: $status='CAN_ANSWER';
1.146 albertel 358: $datemsg=&mt('is in under construction');
1.163 albertel 359: # return ($status,$datemsg);
1.145 albertel 360: }
361:
362: &Apache::lonxml::debug("checking for part :$id:");
363: &Apache::lonxml::debug("time:".time);
1.152 albertel 364:
1.261 albertel 365: my ($symb)=&Apache::lonnet::whichuser();
1.212 albertel 366: &Apache::lonxml::debug("symb:".$symb);
367: #if ($env{'request.state'} ne "construct" && $symb ne '') {
1.204 albertel 368: if ($env{'request.state'} ne "construct") {
1.288 raeburn 369: my $idacc = &Apache::lonnet::EXT("resource.$id.acc");
1.297 raeburn 370: my $allowed=&Apache::loncommon::check_ip_acc($idacc);
1.163 albertel 371: if (!$allowed && ($Apache::lonhomework::browse ne 'F')) {
372: $status='INVALID_ACCESS';
373: $date=&mt("can not be accessed from your location.");
1.145 albertel 374: return($status,$date);
375: }
1.163 albertel 376:
1.226 albertel 377: foreach my $temp ("opendate","duedate","answerdate") {
1.163 albertel 378: $lastdate = $date;
1.247 albertel 379: if ($temp eq 'duedate') {
380: $date = &due_date($id);
381: } else {
382: $date = &Apache::lonnet::EXT("resource.$id.$temp");
383: }
384:
1.163 albertel 385: my $thistype = &Apache::lonnet::EXT("resource.$id.$temp.type");
386: if ($thistype =~ /^(con_lost|no_such_host)/ ||
387: $date =~ /^(con_lost|no_such_host)/) {
388: $status='UNAVAILABLE';
389: $date=&mt("may open later.");
390: return($status,$date);
391: }
392: if ($thistype eq 'date_interval') {
393: if ($temp eq 'opendate') {
394: $date=&Apache::lonnet::EXT("resource.$id.duedate")-$date;
395: }
396: if ($temp eq 'answerdate') {
397: $date=&Apache::lonnet::EXT("resource.$id.duedate")+$date;
398: }
1.145 albertel 399: }
1.163 albertel 400: &Apache::lonxml::debug("found :$date: for :$temp:");
401: if ($date eq '') {
402: $date = &mt("an unknown date"); $passed = 0;
403: } elsif ($date eq 'con_lost') {
404: $date = &mt("an indeterminate date"); $passed = 0;
405: } else {
406: if (time < $date) { $passed = 0; } else { $passed = 1; }
1.274 www 407: $date = &Apache::lonlocal::locallocaltime($date);
1.145 albertel 408: }
1.163 albertel 409: if (!$passed) { $type=$temp; last; }
1.145 albertel 410: }
1.163 albertel 411: &Apache::lonxml::debug("have :$type:$passed:");
412: if ($passed) {
413: $status='SHOW_ANSWER';
414: $datemsg=$date;
415: } elsif ($type eq 'opendate') {
416: $status='CLOSED';
417: $datemsg = &mt("will open on")." $date";
418: } elsif ($type eq 'duedate') {
419: $status='CAN_ANSWER';
420: $datemsg = &mt("is due at")." $date";
421: } elsif ($type eq 'answerdate') {
422: $status='CLOSED';
423: $datemsg = &mt("was due on")." $lastdate".&mt(", and answers will be available on")." $date";
1.145 albertel 424: }
425: }
1.212 albertel 426: if ($status eq 'CAN_ANSWER' ||
427: (($Apache::lonhomework::browse eq 'F') && ($status eq 'CLOSED'))) {
1.145 albertel 428: #check #tries, and if correct.
429: my $tries = $Apache::lonhomework::history{"resource.$id.tries"};
430: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
431: if ( $tries eq '' ) { $tries = '0'; }
1.164 albertel 432: if ( $maxtries eq '' &&
1.204 albertel 433: $env{'request.state'} ne 'construct') { $maxtries = '2'; }
1.164 albertel 434: if ($maxtries && $tries >= $maxtries) { $status = 'CANNOT_ANSWER'; }
1.145 albertel 435: # if (correct and show prob status) or excused then CANNOT_ANSWER
436: if(($Apache::lonhomework::history{"resource.$id.solved"}=~/^correct/
437: &&
1.277 albertel 438: &show_problem_status())
1.145 albertel 439: ||
440: $Apache::lonhomework::history{"resource.$id.solved"}=~/^excused/) {
441: $status = 'CANNOT_ANSWER';
442: }
1.285 albertel 443: if ($status eq 'CANNOT_ANSWER'
444: && &show_answer_problem_status()) {
445: $status = 'SHOW_ANSWER';
446: }
1.121 albertel 447: }
1.181 albertel 448: if ($status eq 'CAN_ANSWER' || $status eq 'CANNOT_ANSWER') {
1.286 albertel 449: my @interval=&Apache::lonnet::EXT("resource.$id.interval");
450: &Apache::lonxml::debug("looking for interval @interval");
451: if ($interval[0]) {
452: my $first_access=&Apache::lonnet::get_first_access($interval[1]);
1.177 albertel 453: &Apache::lonxml::debug("looking for accesstime $first_access");
454: if (!$first_access) {
455: $status='NOT_YET_VIEWED';
1.247 albertel 456: my $due_date = &due_date($id);
1.256 albertel 457: my $seconds_left = $due_date - time;
1.286 albertel 458: if ($seconds_left > $interval[0] || $due_date eq '') {
459: $seconds_left = $interval[0];
1.256 albertel 460: }
461: $datemsg=&seconds_to_human_length($seconds_left);
1.177 albertel 462: }
463: }
464: }
1.247 albertel 465:
1.133 albertel 466: #if (($status ne 'CLOSED') && ($Apache::lonhomework::type eq 'exam') &&
467: # (!$Apache::lonhomework::history{"resource.0.outtoken"})) {
468: # return ('UNCHECKEDOUT','needs to be checked out');
469: #}
1.54 www 470:
471:
1.145 albertel 472: &Apache::lonxml::debug("sending back :$status:$datemsg:");
473: if (($Apache::lonhomework::browse eq 'F') && ($status eq 'CLOSED')) {
474: &Apache::lonxml::debug("should be allowed to browse a resource when closed");
475: $status='CAN_ANSWER';
1.146 albertel 476: $datemsg=&mt('is closed but you are allowed to view it');
1.145 albertel 477: }
1.106 albertel 478:
1.145 albertel 479: return ($status,$datemsg);
1.20 albertel 480: }
1.301 jms 481: # this should work exactly like the copy in lonnavmaps.pm
1.246 albertel 482: sub due_date {
1.250 albertel 483: my ($part_id,$symb,$udom,$uname)=@_;
1.246 albertel 484: my $date;
1.286 albertel 485: my @interval= &Apache::lonnet::EXT("resource.$part_id.interval",$symb,
1.250 albertel 486: $udom,$uname);
1.286 albertel 487: &Apache::lonxml::debug("looking for interval $part_id $symb @interval");
1.250 albertel 488: my $due_date= &Apache::lonnet::EXT("resource.$part_id.duedate",$symb,
489: $udom,$uname);
1.247 albertel 490: &Apache::lonxml::debug("looking for due_date $part_id $symb $due_date");
1.286 albertel 491: if ($interval[0] =~ /\d+/) {
492: my $first_access=&Apache::lonnet::get_first_access($interval[1],$symb);
493: &Apache::lonxml::debug("looking for first_access $first_access ($interval[1])");
1.247 albertel 494: if (defined($first_access)) {
1.286 albertel 495: my $interval = $first_access+$interval[0];
1.283 albertel 496: $date = (!$due_date || $interval < $due_date) ? $interval
497: : $due_date;
1.247 albertel 498: } else {
499: $date = $due_date;
500: }
501: } else {
502: $date = $due_date;
1.246 albertel 503: }
504: return $date
505: }
506:
1.192 albertel 507: sub seconds_to_human_length {
508: my ($length)=@_;
509:
510: my $seconds=$length%60; $length=int($length/60);
511: my $minutes=$length%60; $length=int($length/60);
512: my $hours=$length%24; $length=int($length/24);
513: my $days=$length;
514:
515: my $timestr;
516: if ($days > 0) { $timestr.=&mt('[quant,_1,day]',$days); }
517: if ($hours > 0) { $timestr.=($timestr?", ":"").
518: &mt('[quant,_1,hour]',$hours); }
519: if ($minutes > 0) { $timestr.=($timestr?", ":"").
520: &mt('[quant,_1,minute]',$minutes); }
521: if ($seconds > 0) { $timestr.=($timestr?", ":"").
522: &mt('[quant,_1,second]',$seconds); }
523: return $timestr;
524: }
525:
1.41 albertel 526: sub showhash {
1.145 albertel 527: my (%hash) = @_;
528: &showhashsubset(\%hash,'.');
529: return '';
1.79 albertel 530: }
531:
1.106 albertel 532: sub showarray {
533: my ($array)=@_;
534: my $string="(";
535: foreach my $elm (@{ $array }) {
1.193 albertel 536: if (ref($elm) eq 'ARRAY') {
537: $string.=&showarray($elm);
538: } elsif (ref($elm) eq 'HASH') {
539: $string.= "HASH --- \n<br />";
540: $string.= &showhashsubset($elm,'.');
1.106 albertel 541: } else {
542: $string.="$elm,"
543: }
544: }
545: chop($string);
546: $string.=")";
547: return $string;
548: }
549:
1.79 albertel 550: sub showhashsubset {
1.145 albertel 551: my ($hash,$keyre) = @_;
552: my $resultkey;
553: foreach $resultkey (sort keys %$hash) {
1.193 albertel 554: if ($resultkey !~ /$keyre/) { next; }
555: if (ref($$hash{$resultkey}) eq 'ARRAY' ) {
556: &Apache::lonxml::debug("$resultkey ---- ".
557: &showarray($$hash{$resultkey}));
558: } elsif (ref($$hash{$resultkey}) eq 'HASH' ) {
559: &Apache::lonxml::debug("$resultkey ---- $$hash{$resultkey}");
560: &showhashsubset($$hash{$resultkey},'.');
561: } else {
562: &Apache::lonxml::debug("$resultkey ---- $$hash{$resultkey}");
1.145 albertel 563: }
564: }
565: &Apache::lonxml::debug("\n<br />restored values^</br>\n");
566: return '';
1.41 albertel 567: }
568:
569: sub setuppermissions {
1.204 albertel 570: $Apache::lonhomework::browse= &Apache::lonnet::allowed('bre',$env{'request.filename'});
571: my $viewgrades = &Apache::lonnet::allowed('vgr',$env{'request.course.id'});
1.145 albertel 572: if (! $viewgrades &&
1.204 albertel 573: exists($env{'request.course.sec'}) &&
574: $env{'request.course.sec'} !~ /^\s*$/) {
575: $viewgrades = &Apache::lonnet::allowed('vgr',$env{'request.course.id'}.
576: '/'.$env{'request.course.sec'});
1.145 albertel 577: }
1.244 albertel 578: $Apache::lonhomework::viewgrades = $viewgrades;
579:
1.185 albertel 580: if ($Apache::lonhomework::browse eq 'F' &&
1.204 albertel 581: $env{'form.devalidatecourseresdata'} eq 'on') {
1.261 albertel 582: my (undef,$courseid) = &Apache::lonnet::whichuser();
1.204 albertel 583: &Apache::lonnet::devalidatecourseresdata($env{"course.$courseid.num"},
584: $env{"course.$courseid.domain"});
1.185 albertel 585: }
1.244 albertel 586:
1.205 albertel 587: my $modifygrades = &Apache::lonnet::allowed('mgr',$env{'request.course.id'});
588: if (! $modifygrades &&
589: exists($env{'request.course.sec'}) &&
590: $env{'request.course.sec'} !~ /^\s*$/) {
591: $modifygrades =
592: &Apache::lonnet::allowed('mgr',$env{'request.course.id'}.
593: '/'.$env{'request.course.sec'});
594: }
595: $Apache::lonhomework::modifygrades = $modifygrades;
1.244 albertel 596:
597: my $queuegrade = &Apache::lonnet::allowed('mqg',$env{'request.course.id'});
598: if (! $queuegrade &&
599: exists($env{'request.course.sec'}) &&
600: $env{'request.course.sec'} !~ /^\s*$/) {
601: $queuegrade =
602: &Apache::lonnet::allowed('qgr',$env{'request.course.id'}.
603: '/'.$env{'request.course.sec'});
604: }
605: $Apache::lonhomework::queuegrade = $queuegrade;
1.205 albertel 606: return '';
1.41 albertel 607: }
608:
1.253 albertel 609: sub unset_permissions {
610: undef($Apache::lonhomework::queuegrade);
611: undef($Apache::lonhomework::modifygrades);
612: undef($Apache::lonhomework::viewgrades);
613: undef($Apache::lonhomework::browse);
614: }
615:
1.41 albertel 616: sub setupheader {
1.120 albertel 617: my $request=$_[0];
1.197 albertel 618: &Apache::loncommon::content_type($request,'text/html');
1.120 albertel 619: if (!$Apache::lonxml::debug && ($ENV{'REQUEST_METHOD'} eq 'GET')) {
620: &Apache::loncommon::no_cache($request);
621: }
1.196 albertel 622: # $request->set_last_modified(&Apache::lonnet::metadata($request->uri,
623: # 'lastrevisiondate'));
1.120 albertel 624: $request->send_http_header;
625: return OK if $request->header_only;
626: return ''
1.41 albertel 627: }
1.35 albertel 628:
1.47 albertel 629: sub handle_save_or_undo {
1.145 albertel 630: my ($request,$problem,$result) = @_;
631: my $file = &Apache::lonnet::filelocation("",$request->uri);
632: my $filebak =$file.".bak";
633: my $filetmp =$file.".tmp";
634: my $error=0;
1.204 albertel 635: if ($env{'form.Undo'} eq &mt('undo')) {
1.145 albertel 636: my $error=0;
1.284 albertel 637: if (!&File::Copy::copy($file,$filetmp)) { $error=1; }
638: if ((!$error) && (!&File::Copy::copy($filebak,$file))) { $error=1; }
639: if ((!$error) && (!&File::Copy::move($filetmp,$filebak))) { $error=1; }
1.145 albertel 640: if (!$error) {
1.266 albertel 641: &Apache::lonxml::info("<p><b>".
642: &mt("Undid changes, Switched [_1] and [_2]",
643: '<span class="LC_filename">'.$filebak.
644: '</span>',
645: '<span class="LC_filename">'.$file.
646: '</span>')."</b></p>");
1.145 albertel 647: } else {
1.266 albertel 648: &Apache::lonxml::info("<p><span class=\"LC_error\">".
649: &mt("Unable to undo, unable to switch [_1] and [_2]",
650: '<span class="LC_filename">'.
651: $filebak.'</span>',
652: '<span class="LC_filename">'.
653: $file.'</span>')."</span></p>");
1.145 albertel 654: $error=1;
655: }
1.52 albertel 656: } else {
1.262 banghart 657: &Apache::lonnet::correct_line_ends($result);
1.145 albertel 658: my $fs=Apache::File->new(">$filebak");
659: if (defined($fs)) {
660: print $fs $$problem;
661: } else {
1.266 albertel 662: &Apache::lonxml::info("<span class=\"LC_error\">".
663: &mt("Unable to make backup [_1]",
664: '<span class="LC_filename">'.
665: $filebak.'</span>')."</span>");
1.145 albertel 666: $error=2;
667: }
668: my $fh=Apache::File->new(">$file");
669: if (defined($fh)) {
670: print $fh $$result;
671: } else {
1.266 albertel 672: &Apache::lonxml::info('<span class="LC_error">'.
673: &mt("Unable to write to [_1]",
674: '<span class="LC_filename">'.
675: $file.'</span>').
676: '</span>');
1.145 albertel 677: $error|=4;
678: }
1.52 albertel 679: }
1.145 albertel 680: return $error;
1.64 albertel 681: }
682:
1.101 albertel 683: sub analyze_header {
684: my ($request) = @_;
1.289 raeburn 685: my $js = &Apache::structuretags::setmode_javascript();
1.312 bisitz 686:
687: # Breadcrumbs
688: my $brcrum = [{'href' => &Apache::loncommon::authorspace(),
689: 'text' => 'Construction Space'},
690: {'href' => '',
691: 'text' => 'Problem Testing'},
692: {'href' => '',
693: 'text' => 'Analyzing a problem'}];
694:
1.238 albertel 695: my $result =
1.312 bisitz 696: &Apache::loncommon::start_page('Analyzing a problem',
697: $js,
698: {'bread_crumbs' => $brcrum,})
1.311 bisitz 699: .&Apache::loncommon::head_subbox(
700: &Apache::loncommon::CSTR_pageheader());
1.238 albertel 701: $result .=
702: &Apache::lonxml::message_location().'
1.310 bisitz 703: <form name="lonhomework" method="post" action="'.
1.204 albertel 704: &HTML::Entities::encode($env{'request.uri'},'<>&"').'">'.
1.289 raeburn 705: '<input type="hidden" name="problemmode" value="'.
706: $env{'form.problemmode'}.'" />'.
1.179 albertel 707: &Apache::structuretags::remember_problem_state().'
1.278 albertel 708: <div class="LC_edit_problem_analyze_header">
1.289 raeburn 709: <input type="button" name="submitmode" value="'.&mt("EditXML").'" '.
710: 'onclick="javascript:setmode(this.form,'."'editxml'".')" />
711: <input type="button" name="submitmode" value="'.&mt('Edit').'" '.
712: 'onclick="javascript:setmode(this.form,'."'edit'".')" />
1.313 bisitz 713: <hr />
1.289 raeburn 714: <input type="button" name="submitmode" value="'.&mt("View").'" '.
715: 'onclick="javascript:setmode(this.form,'."'view'".')" />
1.313 bisitz 716: <hr />
1.278 albertel 717: </div>
1.101 albertel 718: </form>';
1.171 albertel 719: &Apache::lonxml::add_messages(\$result);
1.101 albertel 720: $request->print($result);
721: $request->rflush();
722: }
723:
1.109 albertel 724: sub analyze_footer {
725: my ($request) = @_;
1.237 albertel 726: $request->print(&Apache::loncommon::end_page());
1.109 albertel 727: $request->rflush();
728: }
729:
1.74 albertel 730: sub analyze {
1.101 albertel 731: my ($request,$file) = @_;
732: &Apache::lonxml::debug("Analyze");
733: my $result;
734: my %overall;
1.219 www 735: my %seedexample;
1.101 albertel 736: my %allparts;
1.204 albertel 737: my $rndseed=$env{'form.rndseed'};
1.101 albertel 738: &analyze_header($request);
1.114 albertel 739: my %prog_state=
1.146 albertel 740: &Apache::lonhtmlcommon::Create_PrgWin($request,&mt('Analyze Progress'),
741: &mt('Getting Problem Variants'),
1.204 albertel 742: $env{'form.numtoanalyze'},
1.175 albertel 743: 'inline',undef);
1.204 albertel 744: for(my $i=1;$i<$env{'form.numtoanalyze'}+1;$i++) {
1.114 albertel 745: &Apache::lonhtmlcommon::Increment_PrgWin($request,\%prog_state,
1.146 albertel 746: &mt('last problem'));
1.182 albertel 747: if (&Apache::loncommon::connection_aborted($request)) { return; }
1.219 www 748: my $thisseed=$i+$rndseed;
1.101 albertel 749: my $subresult=&Apache::lonnet::ssi($request->uri,
750: ('grade_target' => 'analyze'),
1.219 www 751: ('rndseed' => $thisseed));
1.101 albertel 752: (my $garbage,$subresult)=split(/_HASH_REF__/,$subresult,2);
753: my %analyze=&Apache::lonnet::str2hash($subresult);
1.114 albertel 754: my @parts;
755: if (defined(@{ $analyze{'parts'} })) {
756: @parts=@{ $analyze{'parts'} };
757: }
1.101 albertel 758: foreach my $part (@parts) {
759: if (!exists($allparts{$part})) {$allparts{$part}=1;};
1.109 albertel 760: if ($analyze{$part.'.type'} eq 'numericalresponse' ||
761: $analyze{$part.'.type'} eq 'stringresponse' ||
762: $analyze{$part.'.type'} eq 'formularesponse' ) {
1.263 albertel 763: foreach my $name (keys(%{ $analyze{$part.'.answer'} })) {
764: my $i=0;
765: foreach my $answer_part (@{ $analyze{$part.'.answer'}{$name} }) {
766: push( @{ $overall{$part.'.answer'}[$i] },
767: $answer_part);
768: my $concatanswer= join("\0",@{ $answer_part });
769: if (($concatanswer eq '') || ($concatanswer=~/^\@/)) {
1.266 albertel 770: $answer_part = ['<span class="LC_error">'.&mt('Error').'</span>'];
1.263 albertel 771: }
772: $seedexample{join("\0",$part,$i,@{$answer_part})}=
773: $thisseed;
774: $i++;
775: }
1.219 www 776: }
1.275 albertel 777: if (!keys(%{ $analyze{$part.'.answer'} })) {
778: my $answer_part =
779: ['<span class="LC_error">'.&mt('Error').'</span>'];
780: $seedexample{join("\0",$part,0,@{$answer_part})}=
781: $thisseed;
782: push( @{ $overall{$part.'.answer'}[0] },
783: $answer_part);
784: }
1.101 albertel 785: }
786: }
787: }
1.114 albertel 788: &Apache::lonhtmlcommon::Update_PrgWin($request,\%prog_state,
1.146 albertel 789: &mt('Analyzing Results'));
1.313 bisitz 790: $request->print('<hr />'
1.308 bisitz 791: .'<h3>'
792: .&mt('List of possible answers')
793: .'</h3>'
794: );
1.134 albertel 795: foreach my $part (sort(keys(%allparts))) {
1.109 albertel 796: if (defined(@{ $overall{$part.'.answer'} })) {
1.263 albertel 797: for (my $i=0;$i<scalar(@{ $overall{$part.'.answer'} });$i++) {
798: my $num_cols=scalar(@{ $overall{$part.'.answer'}[$i][0] });
1.308 bisitz 799: $request->print(&Apache::loncommon::start_data_table()
800: .&Apache::loncommon::start_data_table_header_row()
801: .'<th colspan="'.($num_cols+1).'">'
802: .&mt('Part').' '.$part
803: );
1.263 albertel 804: if (scalar(@{ $overall{$part.'.answer'} }) > 1) {
1.308 bisitz 805: $request->print(' '.&mt('Answer [_1]',$i+1));
1.263 albertel 806: }
1.308 bisitz 807: $request->print('</th>'
808: .&Apache::loncommon::end_data_table_header_row()
809: );
1.263 albertel 810: my %frequency;
811: foreach my $answer (sort {$a->[0] <=> $b->[0]} (@{ $overall{$part.'.answer'}[$i] })) {
812: $frequency{join("\0",@{ $answer })}++;
813: }
1.308 bisitz 814: $request->print(&Apache::loncommon::start_data_table_header_row()
815: .'<th colspan="'.($num_cols).'">'.&mt('Answer').'</th>'
816: .'<th>'.&mt('Frequency').'<br />'
817: .'('.&mt('click for example').')</th>'
818: .&Apache::loncommon::end_data_table_header_row()
819: );
1.263 albertel 820: foreach my $answer (sort {(split("\0",$a))[0] <=> (split("\0",$b))[0]} (keys(%frequency))) {
1.308 bisitz 821: $request->print(&Apache::loncommon::start_data_table_row()
822: .'<td>'
823: .join('</td><td>',split("\0",$answer))
824: .'</td>'
825: .'<td>'
826: .'<a href="'.$request->uri.'?rndseed='.$seedexample{join("\0",$part,$i,$answer)}.'">'.$frequency{$answer}.'</a>'
827: .'</td>'
828: .&Apache::loncommon::end_data_table_row()
829: );
1.263 albertel 830: }
1.308 bisitz 831: $request->print(&Apache::loncommon::end_data_table());
1.109 albertel 832: }
833: } else {
1.307 bisitz 834: $request->print('<p class="LC_warning">'
835: .&mt('Response [_1] is not analyzable at this time.',$part)
836: .'</p>'
837: );
1.101 albertel 838: }
839: }
1.130 albertel 840: if (scalar(keys(%allparts)) == 0 ) {
1.307 bisitz 841: $request->print('<p class="LC_warning">'
842: .&mt('Found no analyzable responses in this problem.'
843: .' Currently only Numerical, Formula and String response styles are supported.')
844: .'</p>'
845: );
1.130 albertel 846: }
1.114 albertel 847: &Apache::lonhtmlcommon::Close_PrgWin($request,\%prog_state);
1.109 albertel 848: &analyze_footer($request);
1.101 albertel 849: &Apache::lonhomework::showhash(%overall);
850: return $result;
1.74 albertel 851: }
852:
1.277 albertel 853: {
854: my $show_problem_status;
855: sub reset_show_problem_status {
856: undef($show_problem_status);
857: }
858:
859: sub set_show_problem_status {
860: my ($new_status) = @_;
861: $show_problem_status = lc($new_status);
862: }
863:
864: sub hide_problem_status {
865: return ($show_problem_status eq 'no'
866: || $show_problem_status eq 'no_feedback_ever');
867: }
868:
869: sub show_problem_status {
870: return ($show_problem_status eq 'yes'
1.285 albertel 871: || $show_problem_status eq 'answer'
1.277 albertel 872: || $show_problem_status eq '');
873: }
874:
875: sub show_some_problem_status {
876: return ($show_problem_status eq 'no');
877: }
878:
879: sub show_no_problem_status {
880: return ($show_problem_status eq 'no_feedback_ever');
881: }
1.285 albertel 882:
883: sub show_answer_problem_status {
884: return ($show_problem_status eq 'answer');
885: }
1.277 albertel 886: }
887:
1.64 albertel 888: sub editxmlmode {
1.145 albertel 889: my ($request,$file) = @_;
890: my $result;
891: my $problem=&Apache::lonnet::getfile($file);
892: if ($problem eq -1) {
1.305 bisitz 893: &Apache::lonxml::error(
894: '<b> '
895: .&mt('Unable to find [_1]',
896: '<span class="LC_filename">'.$file.'</span>')
897: .'</b>');
898:
1.145 albertel 899: $problem='';
900: }
1.204 albertel 901: if (defined($env{'form.editxmltext'}) || defined($env{'form.Undo'})) {
1.145 albertel 902: my $error=&handle_save_or_undo($request,\$problem,
1.204 albertel 903: \$env{'form.editxmltext'});
1.145 albertel 904: if (!$error) { $problem=&Apache::lonnet::getfile($file); }
905: }
1.204 albertel 906: &Apache::lonhomework::showhashsubset(\%env,'^form');
1.289 raeburn 907: if ( $env{'form.submitbutton'} eq &mt('Save and View') ) {
1.204 albertel 908: &Apache::lonhomework::showhashsubset(\%env,'^form');
1.289 raeburn 909: $env{'form.problemmode'}='view';
1.145 albertel 910: &renderpage($request,$file);
911: } else {
912: my ($rows,$cols) = &Apache::edit::textarea_sizes(\$problem);
913: if ($cols > 80) { $cols = 80; }
914: if ($cols < 70) { $cols = 70; }
915: if ($rows < 20) { $rows = 20; }
1.269 albertel 916: my $js =
917: &Apache::edit::js_change_detection().
1.289 raeburn 918: &Apache::loncommon::resize_textarea_js().
1.296 raeburn 919: &Apache::structuretags::setmode_javascript().
1.298 foxr 920: &Apache::lonhtmlcommon::dragmath_js("EditMathPopup");
1.296 raeburn 921: my $dragmath_button =
922: &Apache::lonhtmlcommon::dragmath_button("LC_editxmltext",1);
1.312 bisitz 923:
924: # Breadcrumbs
925: my $brcrum = [{'href' => &Apache::loncommon::authorspace(),
926: 'text' => 'Construction Space'},
927: {'href' => '',
928: 'text' => 'Problem Editing'}];
929:
1.238 albertel 930: my $start_page =
1.269 albertel 931: &Apache::loncommon::start_page(&mt("EditXML [_1]",$file),$js,
932: {'no_auto_mt_title' => 1,
1.318 droeschl 933: 'only_body' => 0,
1.269 albertel 934: 'add_entries' => {
935: 'onresize' => q[resize_textarea('LC_editxmltext','LC_aftertextarea')],
936: 'onload' => q[resize_textarea('LC_editxmltext','LC_aftertextarea')],
1.312 bisitz 937: },
938: 'bread_crumbs' => $brcrum,
939: });
1.311 bisitz 940:
941: $result=$start_page
942: .&Apache::loncommon::head_subbox(
943: &Apache::loncommon::CSTR_pageheader());
944: $result.=&renderpage($request,$file,['no_output_web'],1).
1.310 bisitz 945: '<form '.&Apache::edit::form_change_detection().' name="lonhomework" method="post" action="'.
1.204 albertel 946: &HTML::Entities::encode($env{'request.uri'},'<>&"').'">'.
1.179 albertel 947: &Apache::structuretags::remember_problem_state().'
1.278 albertel 948: <div class="LC_edit_problem_editxml_header">
1.280 albertel 949: <table class="LC_edit_problem_header_title"><tr><td>
1.317 bisitz 950: <h2>'.&mt('Problem Editing').' '.&Apache::loncommon::help_open_topic('Problem_Editor_XML_Index').'</h2>
1.280 albertel 951: </td><td align="right">
1.301 jms 952: '.&Apache::loncommon::helpLatexCheatsheet('Problem_LON-CAPA_Functions','Script Functions').'
1.280 albertel 953: </td></tr>
954: </table>
955: <div class="LC_edit_problem_discards">
1.289 raeburn 956: <input type="hidden" name="problemmode" value="editxml" />
1.294 foxr 957:
1.289 raeburn 958: <input type="button" name="submitmode" accesskey="d" value="'.&mt('Discard Edits and View').'" '.
959: 'onclick="javascript:setmode(this.form,'."'discard'".')" />
960: <input type="button" '.&Apache::edit::submit_ask_anyway('setmode(this.form,'."'edit'".')').'name="submitmode" accesskey="e" value="'.&mt('Edit').'" />
1.280 albertel 961: <input type="submit" name="Undo" accesskey="u" value="'.&mt('undo').'" />
1.296 raeburn 962: '.$dragmath_button.'
1.280 albertel 963: </div>
964: <div class="LC_edit_problem_saves">
1.289 raeburn 965: <input type="submit" name="submitbutton" accesskey="s" value="'.&mt('Save').'" />
1.296 raeburn 966: <input type="submit" name="submitbutton" accesskey="v" value="'.&mt('Save and View').'" />
1.280 albertel 967: </div>
1.316 bisitz 968: <hr style="clear:both;" />
1.281 albertel 969: '.&Apache::lonxml::message_location().'
1.278 albertel 970: </div>
1.280 albertel 971: ' . '
1.269 albertel 972: <textarea '.&Apache::edit::element_change_detection().
973: ' rows="'.$rows.'" cols="'.$cols.'" style="width:100%" '.
974: ' name="editxmltext" id="LC_editxmltext">'.
975: &HTML::Entities::encode($problem,'<>&"').'</textarea>
976: <div id="LC_aftertextarea">
977: </div>
1.238 albertel 978: </form>'.&Apache::loncommon::end_page();
1.171 albertel 979: &Apache::lonxml::add_messages(\$result);
1.145 albertel 980: $request->print($result);
981: }
982: return '';
1.47 albertel 983: }
1.189 albertel 984:
1.301 jms 985: #
986: # Render the page in whatever target desired.
987: #
1.41 albertel 988: sub renderpage {
1.213 albertel 989: my ($request,$file,$targets,$return_string) = @_;
1.52 albertel 990:
1.211 albertel 991: my @targets = @{$targets || [&get_target()]};
1.204 albertel 992: &Apache::lonhomework::showhashsubset(\%env,'form.');
1.145 albertel 993: &Apache::lonxml::debug("Running targets ".join(':',@targets));
1.268 albertel 994:
1.171 albertel 995: my $overall_result;
1.145 albertel 996: foreach my $target (@targets) {
1.183 albertel 997: # FIXME need to do something intelligent when a problem goes
998: # from viewable to not viewable due to map conditions
999: #&setuppermissions();
1000: #if ( $Apache::lonhomework::browse ne '2'
1001: # && $Apache::lonhomework::browse ne 'F' ) {
1002: # $request->print(" You most likely shouldn't see me.");
1003: #}
1.145 albertel 1004: #my $t0 = [&gettimeofday()];
1.211 albertel 1005: my $output=1;
1006: if ($target eq 'no_output_web') {
1007: $target = 'web'; $output=0;
1008: }
1.145 albertel 1009: my $problem=&Apache::lonnet::getfile($file);
1.222 albertel 1010: my $result;
1.145 albertel 1011: if ($problem eq -1) {
1.260 albertel 1012: $problem='';
1.222 albertel 1013: my $filename=(split('/',$file))[-1];
1.260 albertel 1014: my $error =
1015: "<b> ".&mt('Unable to find [_1]',
1.305 bisitz 1016: '<span class="LC_filename">'.$filename.'</span>')
1.260 albertel 1017: ."</b>";
1018: $result.=
1019: &Apache::loncommon::simple_error_page($request,'Not available',
1020: $error);
1021: return;
1.145 albertel 1022: }
1.52 albertel 1023:
1.145 albertel 1024: my %mystyle;
1025: if ($target eq 'analyze') { %Apache::lonhomework::analyze=(); }
1026: if ($target eq 'answer') { &showhash(%Apache::lonhomework::history); }
1.204 albertel 1027: if ($target eq 'web') {&Apache::lonhomework::showhashsubset(\%env,'^form');}
1.145 albertel 1028:
1029: &Apache::lonxml::debug("Should be parsing now");
1.222 albertel 1030: $result .= &Apache::lonxml::xmlparse($request, $target, $problem,
1031: &setup_vars($target),%mystyle);
1.273 albertel 1032: &finished_parsing();
1.214 albertel 1033: if (!$output) { $result = ''; }
1.145 albertel 1034: #$request->print("Result follows:");
1035: if ($target eq 'modified') {
1036: &handle_save_or_undo($request,\$problem,\$result);
1037: } else {
1038: if ($target eq 'analyze') {
1039: $result=&Apache::lonnet::hashref2str(\%Apache::lonhomework::analyze);
1040: undef(%Apache::lonhomework::analyze);
1041: }
1042: #my $td=&tv_interval($t0);
1043: #if ( $Apache::lonxml::debug) {
1044: #$result =~ s:</body>::;
1045: #$result.="<br />Spent $td seconds processing target $target\n</body>";
1046: #}
1.171 albertel 1047: # $request->print($result);
1048: $overall_result.=$result;
1049: # $request->rflush();
1.145 albertel 1050: }
1051: #$request->print(":Result ends");
1052: #my $td=&tv_interval($t0);
1.52 albertel 1053: }
1.213 albertel 1054: if (!$return_string) {
1055: &Apache::lonxml::add_messages(\$overall_result);
1056: $request->print($overall_result);
1057: $request->rflush();
1058: } else {
1059: return $overall_result;
1060: }
1.41 albertel 1061: }
1062:
1.273 albertel 1063: sub finished_parsing {
1064: undef($Apache::lonhomework::parsing_a_problem);
1065: undef($Apache::lonhomework::parsing_a_task);
1066: }
1067:
1.42 albertel 1068: sub get_template_list {
1.282 albertel 1069: my ($extension) = @_;
1.145 albertel 1070: my $result;
1071: my @allnames;
1072: &Apache::lonxml::debug("Looking for :$extension:");
1.282 albertel 1073: my $glob_extension = $extension;
1074: if ($extension eq 'survey' || $extension eq 'exam') {
1075: $glob_extension = 'problem';
1076: }
1077: my @files = glob($Apache::lonnet::perlvar{'lonIncludes'}.
1078: '/templates/*.'.$glob_extension);
1.292 www 1079: @files = map {[$_,&mt(&Apache::lonnet::metadata($_, 'title')),
1080: (&Apache::lonnet::metadata($_, 'category')?&mt(&Apache::lonnet::metadata($_, 'category')):&mt('Miscellaneous')),
1081: &mt(&Apache::lonnet::metadata($_, 'help'))]} (@files);
1082: @files = sort {$a->[2].$a->[1] cmp $b->[2].$b->[1]} (@files);
1.287 raeburn 1083: my ($midpoint,$seconddiv,$numfiles);
1084: $numfiles = 0;
1085: foreach my $file (@files) {
1086: next if ($file->[1] !~ /\S/);
1087: $numfiles ++;
1088: }
1089: if ($numfiles > 0) {
1090: $result = '<div class="LC_left_float">';
1091: $midpoint = int($numfiles/2);
1092: if ($numfiles%2) {
1093: $midpoint ++;
1094: }
1095: }
1096: my $count = 0;
1.292 www 1097: my $currentcategory='';
1.314 bisitz 1098: my $first = 1;
1.282 albertel 1099: foreach my $file (@files) {
1100: next if ($file->[1] !~ /\S/);
1.292 www 1101: if ($file->[2] ne $currentcategory) {
1102: $currentcategory=$file->[2];
1103: if ((!$seconddiv) && ($count >= $midpoint)) {
1.314 bisitz 1104: $result .= '</div></div>'."\n".'<div class="LC_left_float">'."\n";
1.292 www 1105: $seconddiv = 1;
1.314 bisitz 1106: } elsif (!$first) {
1107: $result.='</div>'."\n";
1108: } else {
1109: $first = 0;
1.292 www 1110: }
1.314 bisitz 1111: $result.= '<div class="LC_Box">'."\n"
1112: .'<h3 class="LC_hcell">'.$currentcategory.'</h3>'."\n";
1.293 www 1113: $count++;
1.292 www 1114: }
1.282 albertel 1115: $result .=
1116: '<label><input type="radio" name="template" value="'.$file->[0].'" />'.
1.292 www 1117: $file->[1].'</label>';
1118: if ($file->[3]) {
1119: $result.=&Apache::loncommon::help_open_topic($file->[3]);
1120: }
1121: my $filename=$file->[0];
1122: $filename=~s/^\/home\/httpd\/html//;
1.314 bisitz 1123: $result.=' <span class="LC_fontsize_small">'
1.315 droeschl 1124: .'<a href="'.$filename.'?inhibitmenu=yes" target="sample">'.&mt('Example').'</a>'
1.314 bisitz 1125: .'</span><br />'."\n";
1.287 raeburn 1126: $count ++;
1127: }
1128: if ($numfiles > 0) {
1.314 bisitz 1129: $result .= '</div></div>'."\n".'<div class="LC_clear_float_footer"></div>'."\n";
1.42 albertel 1130: }
1.145 albertel 1131: return $result;
1.42 albertel 1132: }
1133:
1134: sub newproblem {
1.65 matthew 1135: my ($request) = @_;
1.282 albertel 1136:
1137: if ($env{'form.template'}) {
1138: my $file = $env{'form.template'};
1.65 matthew 1139: my $dest = &Apache::lonnet::filelocation("",$request->uri);
1.282 albertel 1140: &File::Copy::copy($file,$dest);
1.65 matthew 1141: &renderpage($request,$dest);
1.282 albertel 1142: return;
1143: }
1144:
1145: my ($extension) = ($request->uri =~ m/\.(\w+)$/);
1146: &Apache::lonxml::debug("Looking for :$extension:");
1147: my $templatelist=&get_template_list($extension);
1148: if ($env{'form.newfile'} && !$templatelist) {
1149: # no templates found
1.131 albertel 1150: my $templatefilename =
1.258 albertel 1151: $request->dir_config('lonIncludes').'/templates/blank.'.$extension;
1.131 albertel 1152: &Apache::lonxml::debug("$templatefilename");
1153: my $dest = &Apache::lonnet::filelocation("",$request->uri);
1.282 albertel 1154: &File::Copy::copy($templatefilename,$dest);
1.131 albertel 1155: &renderpage($request,$dest);
1.85 albertel 1156: } else {
1.176 albertel 1157: my $url=&HTML::Entities::encode($request->uri,'<>&"');
1158: my $shownurl=$url;
1.157 albertel 1159: $shownurl=~s-^/~-/priv/-;
1.65 matthew 1160: my $dest = &Apache::lonnet::filelocation("",$request->uri);
1.128 albertel 1161: my $errormsg;
1.85 albertel 1162: my $instructions;
1.312 bisitz 1163: my $brcrum = [{'href' => &Apache::loncommon::authorspace(),
1164: 'text' => 'Construction Space'},
1165: {'href' => '',
1166: 'text' => "Create New $extension"}];
1.240 albertel 1167: my $start_page =
1.312 bisitz 1168: &Apache::loncommon::start_page("Create New $extension",
1169: undef,
1170: {'bread_crumbs' => $brcrum,});
1.311 bisitz 1171: $request->print(
1172: $start_page
1173: .&Apache::loncommon::head_subbox(
1174: &Apache::loncommon::CSTR_pageheader())
1175: .'<h1>'.&mt("Creating a new $extension resource.")."</h1>
1.128 albertel 1176: $errormsg
1.258 albertel 1177: ".&mt("The requested file [_1] currently does not exist.",
1.314 bisitz 1178: '<span class="LC_filename">'.$shownurl.'</span>').'
1179: <p class="LC_info">
1180: '.&mt("To create a new $extension, select a template from the".
1181: " list below. Then click on the \"Create $extension\" button.").'
1182: </p><div><form action="'.$url.'" method="post">');
1.258 albertel 1183:
1.85 albertel 1184: if (defined($templatelist)) {
1.282 albertel 1185: $request->print($templatelist);
1.85 albertel 1186: }
1.282 albertel 1187: $request->print('<br /><input type="submit" name="newfile" value="'.
1188: &mt("Create $extension").'" />');
1.314 bisitz 1189: $request->print('</form></div>'.&Apache::loncommon::end_page());
1.65 matthew 1190: }
1.282 albertel 1191: return;
1.42 albertel 1192: }
1193:
1.268 albertel 1194: sub update_construct_style {
1195: if ($env{'request.state'} eq "construct"
1.289 raeburn 1196: && $env{'form.problemmode'} eq 'view'
1.268 albertel 1197: && defined($env{'form.submitted'})
1198: && !defined($env{'form.resetdata'})
1199: && !defined($env{'form.newrandomization'})) {
1200: if ((!$env{'form.style_file'} && $env{'construct.style'})
1201: ||$env{'form.clear_style_file'}) {
1.303 raeburn 1202: &Apache::lonnet::delenv('construct.style');
1.268 albertel 1203: } elsif ($env{'form.style_file'}
1204: && $env{'construct.style'} ne $env{'form.style_file'}) {
1.291 raeburn 1205: &Apache::lonnet::appenv({'construct.style' =>
1206: $env{'form.style_file'}});
1.268 albertel 1207: }
1208: }
1209: }
1210:
1211:
1.41 albertel 1212: sub handler {
1.145 albertel 1213: #my $t0 = [&gettimeofday()];
1214: my $request=$_[0];
1.223 albertel 1215: $Apache::lonxml::request=$request;
1.204 albertel 1216: $Apache::lonxml::debug=$env{'user.debug'};
1217: $env{'request.uri'}=$request->uri;
1.180 albertel 1218: &setuppermissions();
1.193 albertel 1219:
1.145 albertel 1220: my $file=&Apache::lonnet::filelocation("",$request->uri);
1221:
1222: #check if we know where we are
1.204 albertel 1223: if ($env{'request.course.fn'} && !&Apache::lonnet::symbread()) {
1.145 albertel 1224: # if we are browsing we might not be able to know where we are
1.173 albertel 1225: if ($Apache::lonhomework::browse ne 'F' &&
1.204 albertel 1226: $env{'request.state'} ne "construct") {
1.145 albertel 1227: #should know where we are, so ask
1.253 albertel 1228: &unset_permissions();
1229: $request->internal_redirect('/adm/ambiguous');
1230: return OK;
1.145 albertel 1231: }
1232: }
1.253 albertel 1233: if (&setupheader($request)) {
1234: &unset_permissions();
1235: return OK;
1236: }
1.244 albertel 1237: &Apache::lonxml::debug("Permissions:$Apache::lonhomework::browse:$Apache::lonhomework::viewgrades:$Apache::lonhomework::modifygrades:$Apache::lonhomework::queuegrade");
1.204 albertel 1238: &Apache::lonxml::debug("Problem Mode ".$env{'form.problemmode'});
1.261 albertel 1239: my ($symb) = &Apache::lonnet::whichuser();
1.145 albertel 1240: &Apache::lonxml::debug('symb is '.$symb);
1.204 albertel 1241: if ($env{'request.state'} eq "construct") {
1.145 albertel 1242: if ( -e $file ) {
1243: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
1244: ['problemmode']);
1.204 albertel 1245: if (!(defined $env{'form.problemmode'})) {
1.145 albertel 1246: #first visit to problem in construction space
1.289 raeburn 1247: $env{'form.problemmode'}= 'view';
1.145 albertel 1248: &renderpage($request,$file);
1.289 raeburn 1249: } elsif ($env{'form.problemmode'} eq 'editxml') {
1.145 albertel 1250: &editxmlmode($request,$file);
1.289 raeburn 1251: } elsif ($env{'form.problemmode'} eq 'calcanswers') {
1.145 albertel 1252: &analyze($request,$file);
1253: } else {
1.268 albertel 1254: &update_construct_style();
1.145 albertel 1255: &renderpage($request,$file);
1256: }
1257: } else {
1258: # requested file doesn't exist in contruction space
1259: &newproblem($request);
1260: }
1261: } else {
1262: # just render the page normally outside of construction space
1263: &Apache::lonxml::debug("not construct");
1.52 albertel 1264: &renderpage($request,$file);
1.41 albertel 1265: }
1.145 albertel 1266: #my $td=&tv_interval($t0);
1267: #&Apache::lonxml::debug("Spent $td seconds processing");
1268: # always turn off debug messages
1269: $Apache::lonxml::debug=0;
1.253 albertel 1270: &unset_permissions();
1.145 albertel 1271: return OK;
1.52 albertel 1272:
1.1 albertel 1273: }
1274:
1275: 1;
1276: __END__
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