Annotation of loncom/homework/lonhomework.pm, revision 1.310.4.1
1.63 albertel 1: # The LearningOnline Network with CAPA
1.52 albertel 2: # The LON-CAPA Homework handler
1.63 albertel 3: #
1.310.4.1! raeburn 4: # $Id: lonhomework.pm,v 1.310 2009/05/11 16:51:22 bisitz 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 ($env{'form.grade_target'});
1.310.4.1! raeburn 114: } elsif ($env{'form.grade_target'} eq 'answer') {
! 115: if ($env{'form.answer_output_mode'} eq 'tex') {
! 116: return ($env{'form.grade_target'});
! 117: }
! 118: }
1.207 albertel 119: if ($env{'form.webgrade'} &&
1.244 albertel 120: ($Apache::lonhomework::modifygrades eq 'F'
121: || $Apache::lonhomework::queuegrade eq 'F' )) {
1.207 albertel 122: return ('grade','webgrade');
1.145 albertel 123: }
1.204 albertel 124: if ( defined($env{'form.submitted'}) &&
125: ( !defined($env{'form.newrandomization'}))) {
1.217 albertel 126: return ('grade', 'web');
1.145 albertel 127: } else {
1.217 albertel 128: return ('web');
1.145 albertel 129: }
1.204 albertel 130: } elsif ($env{'request.state'} eq "construct") {
131: if ( defined($env{'form.grade_target'}) ) {
132: return ($env{'form.grade_target'});
1.145 albertel 133: }
1.204 albertel 134: if ( defined($env{'form.preview'})) {
135: if ( defined($env{'form.submitted'})) {
1.145 albertel 136: return ('grade', 'web');
137: } else {
138: return ('web');
139: }
140: } else {
1.267 albertel 141: if ($env{'form.problemstate'} eq 'WEB_GRADE') {
142: #$env{'form.webgrade'} = 'yes';
143: return ('grade','webgrade','answer');
1.289 raeburn 144: } elsif (($env{'form.problemmode'} eq 'view') ||
145: ($env{'form.problemmode'} eq 'discard')) {
1.204 albertel 146: if ( defined($env{'form.submitted'}) &&
147: (!defined($env{'form.resetdata'})) &&
148: (!defined($env{'form.newrandomization'}))) {
1.145 albertel 149: return ('grade', 'web','answer');
150: } else {
151: return ('web','answer');
152: }
1.289 raeburn 153: } elsif ($env{'form.problemmode'} eq 'edit') {
1.204 albertel 154: if ( $env{'form.submitted'} eq 'edit' ) {
1.289 raeburn 155: if ( $env{'form.submitbutton'} eq &mt('Save and View') ) {
1.145 albertel 156: return ('modified','web','answer');
157: } else {
1.211 albertel 158: return ('modified','no_output_web','edit');
1.145 albertel 159: }
160: } else {
1.211 albertel 161: return ('no_output_web','edit');
1.145 albertel 162: }
163: } else {
164: return ('web');
165: }
166: }
1.15 albertel 167: }
1.145 albertel 168: return ();
1.5 albertel 169: }
170:
1.3 albertel 171: sub setup_vars {
1.145 albertel 172: my ($target) = @_;
173: return ';'
1.11 albertel 174: # return ';$external::target='.$target.';';
1.2 albertel 175: }
176:
1.36 albertel 177: sub createmenu {
1.145 albertel 178: my ($which,$request)=@_;
179: if ($which eq 'grade') {
1.306 bisitz 180: $request->print('<script type="text/javascript" language="JavaScript">
1.91 albertel 181: hwkmenu=window.open("/res/adm/pages/homeworkmenu.html","homeworkremote",
1.52 albertel 182: "height=350,width=150,menubar=no");
183: </script>');
1.145 albertel 184: }
1.36 albertel 185: }
186:
1.200 albertel 187: sub proctor_checked_in {
1.226 albertel 188: my ($slot_name,$slot,$type)=@_;
189: my @possible_proctors=split(",",$slot->{'proctor'});
190:
1.248 albertel 191: return 1 if (!@possible_proctors);
192:
1.226 albertel 193: my $key;
194: if ($type eq 'Task') {
1.230 albertel 195: my $version=$Apache::lonhomework::history{'resource.0.version'};
196: $key ="resource.$version.0.checkedin";
1.226 albertel 197: } elsif ($type eq 'problem') {
198: $key ='resource.0.checkedin';
199: }
1.249 albertel 200: # backward compatability, used to be username@domain,
201: # now is username:domain
202: my $who = $Apache::lonhomework::history{$key};
203: if ($who !~ /:/) {
204: $who =~ tr/@/:/;
205: }
1.226 albertel 206: foreach my $possible (@possible_proctors) {
1.249 albertel 207: if ($who eq $possible
1.226 albertel 208: && $Apache::lonhomework::history{$key.'.slot'} eq $slot_name) {
1.202 albertel 209: return 1;
210: }
211: }
1.226 albertel 212:
1.200 albertel 213: return 0;
214: }
215:
1.226 albertel 216: sub check_slot_access {
217: my ($id,$type)=@_;
218:
1.207 albertel 219: # does it pass normal muster
1.226 albertel 220: my ($status,$datemsg)=&check_access($id);
221:
1.252 albertel 222: my $useslots = &Apache::lonnet::EXT("resource.0.useslots");
1.251 albertel 223: if ($useslots ne 'resource' && $useslots ne 'map'
224: && $useslots ne 'map_map') {
1.226 albertel 225: return ($status,$datemsg);
226: }
227:
1.200 albertel 228: if ($status eq 'SHOW_ANSWER' ||
229: $status eq 'CLOSED' ||
230: $status eq 'INVALID_ACCESS' ||
231: $status eq 'UNAVAILABLE') {
232: return ($status,$datemsg);
233: }
1.204 albertel 234: if ($env{'request.state'} eq "construct") {
1.203 albertel 235: return ($status,$datemsg);
236: }
1.226 albertel 237:
238: if ($type eq 'Task') {
239: my $version=$Apache::lonhomework::history{'resource.version'};
1.230 albertel 240: if ($Apache::lonhomework::history{"resource.$version.0.checkedin"} &&
241: $Apache::lonhomework::history{"resource.$version.0.status"} eq 'pass') {
1.226 albertel 242: return ('SHOW_ANSWER');
243: }
1.207 albertel 244: }
1.226 albertel 245:
1.288 raeburn 246: my $availablestudent = &Apache::lonnet::EXT("resource.0.availablestudent");
247: my $available = &Apache::lonnet::EXT("resource.0.available");
248: my @slots= (split(':',$availablestudent),split(':',$available));
1.210 albertel 249:
1.200 albertel 250: # if (!@slots) {
251: # return ($status,$datemsg);
252: # }
253: my $slotstatus='NOT_IN_A_SLOT';
1.206 albertel 254: my ($returned_slot,$slot_name);
1.210 albertel 255: foreach my $slot (@slots) {
1.241 albertel 256: $slot =~ s/(^\s*|\s*$)//g;
1.201 albertel 257: &Apache::lonxml::debug("getting $slot");
1.200 albertel 258: my %slot=&Apache::lonnet::get_slot($slot);
1.201 albertel 259: &Apache::lonhomework::showhash(%slot);
1.200 albertel 260: if ($slot{'starttime'} < time &&
261: $slot{'endtime'} > time &&
1.297 raeburn 262: &Apache::loncommon::check_ip_acc($slot{'ip'})) {
1.202 albertel 263: &Apache::lonxml::debug("$slot is good");
264: $slotstatus='NEEDS_CHECKIN';
265: $returned_slot=\%slot;
1.206 albertel 266: $slot_name=$slot;
1.200 albertel 267: last;
268: }
269: }
1.202 albertel 270: if ($slotstatus eq 'NEEDS_CHECKIN' &&
1.226 albertel 271: &proctor_checked_in($slot_name,$returned_slot,$type)) {
1.202 albertel 272: &Apache::lonxml::debug("protoctor checked in");
1.200 albertel 273: $slotstatus='CAN_ANSWER';
274: }
1.226 albertel 275:
1.235 albertel 276: my ($is_correct,$got_grade,$checkedin);
1.226 albertel 277: if ($type eq 'Task') {
1.230 albertel 278: my $version=$Apache::lonhomework::history{'resource.0.version'};
1.231 albertel 279: $got_grade =
280: ($Apache::lonhomework::history{"resource.$version.0.status"}
281: =~ /^(?:pass|fail)$/);
1.235 albertel 282: $is_correct =
283: ($Apache::lonhomework::history{"resource.$version.0.status"} eq 'pass'
284: || $Apache::lonhomework::history{"resource.0.solved"} =~ /^correct_/ );
1.226 albertel 285: $checkedin =
1.230 albertel 286: $Apache::lonhomework::history{"resource.$version.0.checkedin"};
1.226 albertel 287: } elsif ($type eq 'problem') {
1.252 albertel 288: $got_grade = 1;
289: $checkedin = $Apache::lonhomework::history{"resource.0.checkedin"};
290: $is_correct =
291: ($Apache::lonhomework::history{"resource.0.solved"} =~/^correct_/);
1.226 albertel 292: }
293:
1.235 albertel 294: &Apache::lonxml::debug(" slot is $slotstatus checkedin ($checkedin) got_grade ($got_grade) is_correct ($is_correct)");
295:
1.243 albertel 296: # no slot is currently open, and has been checked in for this version
297: # but hasn't got a grade, therefore must be awaiting a grade
298: if (!defined($slot_name)
299: && $checkedin
1.236 albertel 300: && !$got_grade) {
301: return ('WAITING_FOR_GRADE');
302: }
303:
1.309 raeburn 304: # Previously used slot is no longer open, and has been checked in for this version.
305: # However, the problem is not closed, and potentially, another slot might be
306: # used to gain access to it to work on it, until the due date is reached, and the
307: # problem then becomes CLOSED. Therefore return the slotstatus -
308: # (which will be NOT_IN_SLOT).
1.252 albertel 309: if (!defined($slot_name)
310: && $checkedin
311: && $type eq 'problem') {
1.309 raeburn 312: return ($slotstatus);
1.252 albertel 313: }
314:
1.226 albertel 315: if ($slotstatus eq 'NOT_IN_A_SLOT'
316: && $checkedin ) {
317:
1.231 albertel 318: if ($got_grade) {
1.209 albertel 319: return ('SHOW_ANSWER');
320: } else {
321: return ('WAITING_FOR_GRADE');
322: }
1.226 albertel 323:
1.207 albertel 324: }
1.255 albertel 325:
1.235 albertel 326: if ( $is_correct) {
1.255 albertel 327: if ($type eq 'problem') {
328: return ($status);
329: }
1.235 albertel 330: return ('SHOW_ANSWER');
331: }
1.255 albertel 332:
1.225 albertel 333: if ( $status eq 'CANNOT_ANSWER' &&
334: ($slotstatus ne 'NEEDS_CHECKIN' && $slotstatus ne 'NOT_IN_A_SLOT')) {
335: return ($status,$datemsg);
336: }
337:
1.206 albertel 338: return ($slotstatus,$datemsg,$slot_name,$returned_slot);
1.198 albertel 339: }
1.200 albertel 340:
1.301 jms 341: # JB, 9/24/2002: Any changes in this function may require a change
342: # in lonnavmaps::resource::getDateStatus.
1.53 www 343: sub check_access {
1.145 albertel 344: my ($id) = @_;
345: my $date ='';
346: my $status;
347: my $datemsg = '';
348: my $lastdate = '';
349: my $type;
350: my $passed;
351:
1.204 albertel 352: if ($env{'request.state'} eq "construct") {
353: if ($env{'form.problemstate'}) {
354: if ($env{'form.problemstate'} =~ /^CANNOT_ANSWER/) {
1.277 albertel 355: if ( ! ($env{'form.problemstate'} eq 'CANNOT_ANSWER_correct'
356: && &hide_problem_status())) {
1.168 albertel 357: return ('CANNOT_ANSWER',
1.174 www 358: &mt('is in this state due to author settings.'));
1.167 albertel 359: }
1.165 albertel 360: } else {
1.204 albertel 361: return ($env{'form.problemstate'},
1.174 www 362: &mt('is in this state due to author settings.'));
1.165 albertel 363: }
364: }
1.145 albertel 365: &Apache::lonxml::debug("in construction ignoring dates");
366: $status='CAN_ANSWER';
1.146 albertel 367: $datemsg=&mt('is in under construction');
1.163 albertel 368: # return ($status,$datemsg);
1.145 albertel 369: }
370:
371: &Apache::lonxml::debug("checking for part :$id:");
372: &Apache::lonxml::debug("time:".time);
1.152 albertel 373:
1.261 albertel 374: my ($symb)=&Apache::lonnet::whichuser();
1.212 albertel 375: &Apache::lonxml::debug("symb:".$symb);
376: #if ($env{'request.state'} ne "construct" && $symb ne '') {
1.204 albertel 377: if ($env{'request.state'} ne "construct") {
1.288 raeburn 378: my $idacc = &Apache::lonnet::EXT("resource.$id.acc");
1.297 raeburn 379: my $allowed=&Apache::loncommon::check_ip_acc($idacc);
1.163 albertel 380: if (!$allowed && ($Apache::lonhomework::browse ne 'F')) {
381: $status='INVALID_ACCESS';
382: $date=&mt("can not be accessed from your location.");
1.145 albertel 383: return($status,$date);
384: }
1.163 albertel 385:
1.226 albertel 386: foreach my $temp ("opendate","duedate","answerdate") {
1.163 albertel 387: $lastdate = $date;
1.247 albertel 388: if ($temp eq 'duedate') {
389: $date = &due_date($id);
390: } else {
391: $date = &Apache::lonnet::EXT("resource.$id.$temp");
392: }
393:
1.163 albertel 394: my $thistype = &Apache::lonnet::EXT("resource.$id.$temp.type");
395: if ($thistype =~ /^(con_lost|no_such_host)/ ||
396: $date =~ /^(con_lost|no_such_host)/) {
397: $status='UNAVAILABLE';
398: $date=&mt("may open later.");
399: return($status,$date);
400: }
401: if ($thistype eq 'date_interval') {
402: if ($temp eq 'opendate') {
403: $date=&Apache::lonnet::EXT("resource.$id.duedate")-$date;
404: }
405: if ($temp eq 'answerdate') {
406: $date=&Apache::lonnet::EXT("resource.$id.duedate")+$date;
407: }
1.145 albertel 408: }
1.163 albertel 409: &Apache::lonxml::debug("found :$date: for :$temp:");
410: if ($date eq '') {
411: $date = &mt("an unknown date"); $passed = 0;
412: } elsif ($date eq 'con_lost') {
413: $date = &mt("an indeterminate date"); $passed = 0;
414: } else {
415: if (time < $date) { $passed = 0; } else { $passed = 1; }
1.274 www 416: $date = &Apache::lonlocal::locallocaltime($date);
1.145 albertel 417: }
1.163 albertel 418: if (!$passed) { $type=$temp; last; }
1.145 albertel 419: }
1.163 albertel 420: &Apache::lonxml::debug("have :$type:$passed:");
421: if ($passed) {
422: $status='SHOW_ANSWER';
423: $datemsg=$date;
424: } elsif ($type eq 'opendate') {
425: $status='CLOSED';
426: $datemsg = &mt("will open on")." $date";
427: } elsif ($type eq 'duedate') {
428: $status='CAN_ANSWER';
429: $datemsg = &mt("is due at")." $date";
430: } elsif ($type eq 'answerdate') {
431: $status='CLOSED';
432: $datemsg = &mt("was due on")." $lastdate".&mt(", and answers will be available on")." $date";
1.145 albertel 433: }
434: }
1.212 albertel 435: if ($status eq 'CAN_ANSWER' ||
436: (($Apache::lonhomework::browse eq 'F') && ($status eq 'CLOSED'))) {
1.145 albertel 437: #check #tries, and if correct.
438: my $tries = $Apache::lonhomework::history{"resource.$id.tries"};
439: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
440: if ( $tries eq '' ) { $tries = '0'; }
1.164 albertel 441: if ( $maxtries eq '' &&
1.204 albertel 442: $env{'request.state'} ne 'construct') { $maxtries = '2'; }
1.164 albertel 443: if ($maxtries && $tries >= $maxtries) { $status = 'CANNOT_ANSWER'; }
1.145 albertel 444: # if (correct and show prob status) or excused then CANNOT_ANSWER
445: if(($Apache::lonhomework::history{"resource.$id.solved"}=~/^correct/
446: &&
1.277 albertel 447: &show_problem_status())
1.145 albertel 448: ||
449: $Apache::lonhomework::history{"resource.$id.solved"}=~/^excused/) {
450: $status = 'CANNOT_ANSWER';
451: }
1.285 albertel 452: if ($status eq 'CANNOT_ANSWER'
453: && &show_answer_problem_status()) {
454: $status = 'SHOW_ANSWER';
455: }
1.121 albertel 456: }
1.181 albertel 457: if ($status eq 'CAN_ANSWER' || $status eq 'CANNOT_ANSWER') {
1.286 albertel 458: my @interval=&Apache::lonnet::EXT("resource.$id.interval");
459: &Apache::lonxml::debug("looking for interval @interval");
460: if ($interval[0]) {
461: my $first_access=&Apache::lonnet::get_first_access($interval[1]);
1.177 albertel 462: &Apache::lonxml::debug("looking for accesstime $first_access");
463: if (!$first_access) {
464: $status='NOT_YET_VIEWED';
1.247 albertel 465: my $due_date = &due_date($id);
1.256 albertel 466: my $seconds_left = $due_date - time;
1.286 albertel 467: if ($seconds_left > $interval[0] || $due_date eq '') {
468: $seconds_left = $interval[0];
1.256 albertel 469: }
470: $datemsg=&seconds_to_human_length($seconds_left);
1.177 albertel 471: }
472: }
473: }
1.247 albertel 474:
1.133 albertel 475: #if (($status ne 'CLOSED') && ($Apache::lonhomework::type eq 'exam') &&
476: # (!$Apache::lonhomework::history{"resource.0.outtoken"})) {
477: # return ('UNCHECKEDOUT','needs to be checked out');
478: #}
1.54 www 479:
480:
1.145 albertel 481: &Apache::lonxml::debug("sending back :$status:$datemsg:");
482: if (($Apache::lonhomework::browse eq 'F') && ($status eq 'CLOSED')) {
483: &Apache::lonxml::debug("should be allowed to browse a resource when closed");
484: $status='CAN_ANSWER';
1.146 albertel 485: $datemsg=&mt('is closed but you are allowed to view it');
1.145 albertel 486: }
1.106 albertel 487:
1.145 albertel 488: return ($status,$datemsg);
1.20 albertel 489: }
1.301 jms 490: # this should work exactly like the copy in lonnavmaps.pm
1.246 albertel 491: sub due_date {
1.250 albertel 492: my ($part_id,$symb,$udom,$uname)=@_;
1.246 albertel 493: my $date;
1.286 albertel 494: my @interval= &Apache::lonnet::EXT("resource.$part_id.interval",$symb,
1.250 albertel 495: $udom,$uname);
1.286 albertel 496: &Apache::lonxml::debug("looking for interval $part_id $symb @interval");
1.250 albertel 497: my $due_date= &Apache::lonnet::EXT("resource.$part_id.duedate",$symb,
498: $udom,$uname);
1.247 albertel 499: &Apache::lonxml::debug("looking for due_date $part_id $symb $due_date");
1.286 albertel 500: if ($interval[0] =~ /\d+/) {
501: my $first_access=&Apache::lonnet::get_first_access($interval[1],$symb);
502: &Apache::lonxml::debug("looking for first_access $first_access ($interval[1])");
1.247 albertel 503: if (defined($first_access)) {
1.286 albertel 504: my $interval = $first_access+$interval[0];
1.283 albertel 505: $date = (!$due_date || $interval < $due_date) ? $interval
506: : $due_date;
1.247 albertel 507: } else {
508: $date = $due_date;
509: }
510: } else {
511: $date = $due_date;
1.246 albertel 512: }
513: return $date
514: }
515:
1.192 albertel 516: sub seconds_to_human_length {
517: my ($length)=@_;
518:
519: my $seconds=$length%60; $length=int($length/60);
520: my $minutes=$length%60; $length=int($length/60);
521: my $hours=$length%24; $length=int($length/24);
522: my $days=$length;
523:
524: my $timestr;
525: if ($days > 0) { $timestr.=&mt('[quant,_1,day]',$days); }
526: if ($hours > 0) { $timestr.=($timestr?", ":"").
527: &mt('[quant,_1,hour]',$hours); }
528: if ($minutes > 0) { $timestr.=($timestr?", ":"").
529: &mt('[quant,_1,minute]',$minutes); }
530: if ($seconds > 0) { $timestr.=($timestr?", ":"").
531: &mt('[quant,_1,second]',$seconds); }
532: return $timestr;
533: }
534:
1.41 albertel 535: sub showhash {
1.145 albertel 536: my (%hash) = @_;
537: &showhashsubset(\%hash,'.');
538: return '';
1.79 albertel 539: }
540:
1.106 albertel 541: sub showarray {
542: my ($array)=@_;
543: my $string="(";
544: foreach my $elm (@{ $array }) {
1.193 albertel 545: if (ref($elm) eq 'ARRAY') {
546: $string.=&showarray($elm);
547: } elsif (ref($elm) eq 'HASH') {
548: $string.= "HASH --- \n<br />";
549: $string.= &showhashsubset($elm,'.');
1.106 albertel 550: } else {
551: $string.="$elm,"
552: }
553: }
554: chop($string);
555: $string.=")";
556: return $string;
557: }
558:
1.79 albertel 559: sub showhashsubset {
1.145 albertel 560: my ($hash,$keyre) = @_;
561: my $resultkey;
562: foreach $resultkey (sort keys %$hash) {
1.193 albertel 563: if ($resultkey !~ /$keyre/) { next; }
564: if (ref($$hash{$resultkey}) eq 'ARRAY' ) {
565: &Apache::lonxml::debug("$resultkey ---- ".
566: &showarray($$hash{$resultkey}));
567: } elsif (ref($$hash{$resultkey}) eq 'HASH' ) {
568: &Apache::lonxml::debug("$resultkey ---- $$hash{$resultkey}");
569: &showhashsubset($$hash{$resultkey},'.');
570: } else {
571: &Apache::lonxml::debug("$resultkey ---- $$hash{$resultkey}");
1.145 albertel 572: }
573: }
574: &Apache::lonxml::debug("\n<br />restored values^</br>\n");
575: return '';
1.41 albertel 576: }
577:
578: sub setuppermissions {
1.204 albertel 579: $Apache::lonhomework::browse= &Apache::lonnet::allowed('bre',$env{'request.filename'});
580: my $viewgrades = &Apache::lonnet::allowed('vgr',$env{'request.course.id'});
1.145 albertel 581: if (! $viewgrades &&
1.204 albertel 582: exists($env{'request.course.sec'}) &&
583: $env{'request.course.sec'} !~ /^\s*$/) {
584: $viewgrades = &Apache::lonnet::allowed('vgr',$env{'request.course.id'}.
585: '/'.$env{'request.course.sec'});
1.145 albertel 586: }
1.244 albertel 587: $Apache::lonhomework::viewgrades = $viewgrades;
588:
1.185 albertel 589: if ($Apache::lonhomework::browse eq 'F' &&
1.204 albertel 590: $env{'form.devalidatecourseresdata'} eq 'on') {
1.261 albertel 591: my (undef,$courseid) = &Apache::lonnet::whichuser();
1.204 albertel 592: &Apache::lonnet::devalidatecourseresdata($env{"course.$courseid.num"},
593: $env{"course.$courseid.domain"});
1.185 albertel 594: }
1.244 albertel 595:
1.205 albertel 596: my $modifygrades = &Apache::lonnet::allowed('mgr',$env{'request.course.id'});
597: if (! $modifygrades &&
598: exists($env{'request.course.sec'}) &&
599: $env{'request.course.sec'} !~ /^\s*$/) {
600: $modifygrades =
601: &Apache::lonnet::allowed('mgr',$env{'request.course.id'}.
602: '/'.$env{'request.course.sec'});
603: }
604: $Apache::lonhomework::modifygrades = $modifygrades;
1.244 albertel 605:
606: my $queuegrade = &Apache::lonnet::allowed('mqg',$env{'request.course.id'});
607: if (! $queuegrade &&
608: exists($env{'request.course.sec'}) &&
609: $env{'request.course.sec'} !~ /^\s*$/) {
610: $queuegrade =
611: &Apache::lonnet::allowed('qgr',$env{'request.course.id'}.
612: '/'.$env{'request.course.sec'});
613: }
614: $Apache::lonhomework::queuegrade = $queuegrade;
1.205 albertel 615: return '';
1.41 albertel 616: }
617:
1.253 albertel 618: sub unset_permissions {
619: undef($Apache::lonhomework::queuegrade);
620: undef($Apache::lonhomework::modifygrades);
621: undef($Apache::lonhomework::viewgrades);
622: undef($Apache::lonhomework::browse);
623: }
624:
1.41 albertel 625: sub setupheader {
1.120 albertel 626: my $request=$_[0];
1.197 albertel 627: &Apache::loncommon::content_type($request,'text/html');
1.120 albertel 628: if (!$Apache::lonxml::debug && ($ENV{'REQUEST_METHOD'} eq 'GET')) {
629: &Apache::loncommon::no_cache($request);
630: }
1.196 albertel 631: # $request->set_last_modified(&Apache::lonnet::metadata($request->uri,
632: # 'lastrevisiondate'));
1.120 albertel 633: $request->send_http_header;
634: return OK if $request->header_only;
635: return ''
1.41 albertel 636: }
1.35 albertel 637:
1.47 albertel 638: sub handle_save_or_undo {
1.145 albertel 639: my ($request,$problem,$result) = @_;
640: my $file = &Apache::lonnet::filelocation("",$request->uri);
641: my $filebak =$file.".bak";
642: my $filetmp =$file.".tmp";
643: my $error=0;
1.204 albertel 644: if ($env{'form.Undo'} eq &mt('undo')) {
1.145 albertel 645: my $error=0;
1.284 albertel 646: if (!&File::Copy::copy($file,$filetmp)) { $error=1; }
647: if ((!$error) && (!&File::Copy::copy($filebak,$file))) { $error=1; }
648: if ((!$error) && (!&File::Copy::move($filetmp,$filebak))) { $error=1; }
1.145 albertel 649: if (!$error) {
1.266 albertel 650: &Apache::lonxml::info("<p><b>".
651: &mt("Undid changes, Switched [_1] and [_2]",
652: '<span class="LC_filename">'.$filebak.
653: '</span>',
654: '<span class="LC_filename">'.$file.
655: '</span>')."</b></p>");
1.145 albertel 656: } else {
1.266 albertel 657: &Apache::lonxml::info("<p><span class=\"LC_error\">".
658: &mt("Unable to undo, unable to switch [_1] and [_2]",
659: '<span class="LC_filename">'.
660: $filebak.'</span>',
661: '<span class="LC_filename">'.
662: $file.'</span>')."</span></p>");
1.145 albertel 663: $error=1;
664: }
1.52 albertel 665: } else {
1.262 banghart 666: &Apache::lonnet::correct_line_ends($result);
1.145 albertel 667: my $fs=Apache::File->new(">$filebak");
668: if (defined($fs)) {
669: print $fs $$problem;
670: } else {
1.266 albertel 671: &Apache::lonxml::info("<span class=\"LC_error\">".
672: &mt("Unable to make backup [_1]",
673: '<span class="LC_filename">'.
674: $filebak.'</span>')."</span>");
1.145 albertel 675: $error=2;
676: }
677: my $fh=Apache::File->new(">$file");
678: if (defined($fh)) {
679: print $fh $$result;
680: } else {
1.266 albertel 681: &Apache::lonxml::info('<span class="LC_error">'.
682: &mt("Unable to write to [_1]",
683: '<span class="LC_filename">'.
684: $file.'</span>').
685: '</span>');
1.145 albertel 686: $error|=4;
687: }
1.52 albertel 688: }
1.145 albertel 689: return $error;
1.64 albertel 690: }
691:
1.101 albertel 692: sub analyze_header {
693: my ($request) = @_;
1.289 raeburn 694: my $js = &Apache::structuretags::setmode_javascript();
1.238 albertel 695: my $result =
1.289 raeburn 696: &Apache::loncommon::start_page('Analyzing a problem',$js);
1.240 albertel 697:
1.238 albertel 698: $result .=
699: &Apache::lonxml::message_location().'
1.310 bisitz 700: <form name="lonhomework" method="post" action="'.
1.204 albertel 701: &HTML::Entities::encode($env{'request.uri'},'<>&"').'">'.
1.289 raeburn 702: '<input type="hidden" name="problemmode" value="'.
703: $env{'form.problemmode'}.'" />'.
1.179 albertel 704: &Apache::structuretags::remember_problem_state().'
1.278 albertel 705: <div class="LC_edit_problem_analyze_header">
1.289 raeburn 706: <input type="button" name="submitmode" value="'.&mt("EditXML").'" '.
707: 'onclick="javascript:setmode(this.form,'."'editxml'".')" />
708: <input type="button" name="submitmode" value="'.&mt('Edit').'" '.
709: 'onclick="javascript:setmode(this.form,'."'edit'".')" />
1.278 albertel 710: <hr class="LC_edit_problem_divide" />
1.289 raeburn 711: <input type="button" name="submitmode" value="'.&mt("View").'" '.
712: 'onclick="javascript:setmode(this.form,'."'view'".')" />
1.278 albertel 713: <hr class="LC_edit_problem_divide" />
714: </div>
1.101 albertel 715: </form>';
1.171 albertel 716: &Apache::lonxml::add_messages(\$result);
1.101 albertel 717: $request->print($result);
718: $request->rflush();
719: }
720:
1.109 albertel 721: sub analyze_footer {
722: my ($request) = @_;
1.237 albertel 723: $request->print(&Apache::loncommon::end_page());
1.109 albertel 724: $request->rflush();
725: }
726:
1.74 albertel 727: sub analyze {
1.101 albertel 728: my ($request,$file) = @_;
729: &Apache::lonxml::debug("Analyze");
730: my $result;
731: my %overall;
1.219 www 732: my %seedexample;
1.101 albertel 733: my %allparts;
1.204 albertel 734: my $rndseed=$env{'form.rndseed'};
1.101 albertel 735: &analyze_header($request);
1.114 albertel 736: my %prog_state=
1.146 albertel 737: &Apache::lonhtmlcommon::Create_PrgWin($request,&mt('Analyze Progress'),
738: &mt('Getting Problem Variants'),
1.204 albertel 739: $env{'form.numtoanalyze'},
1.175 albertel 740: 'inline',undef);
1.204 albertel 741: for(my $i=1;$i<$env{'form.numtoanalyze'}+1;$i++) {
1.114 albertel 742: &Apache::lonhtmlcommon::Increment_PrgWin($request,\%prog_state,
1.146 albertel 743: &mt('last problem'));
1.182 albertel 744: if (&Apache::loncommon::connection_aborted($request)) { return; }
1.219 www 745: my $thisseed=$i+$rndseed;
1.101 albertel 746: my $subresult=&Apache::lonnet::ssi($request->uri,
747: ('grade_target' => 'analyze'),
1.219 www 748: ('rndseed' => $thisseed));
1.101 albertel 749: (my $garbage,$subresult)=split(/_HASH_REF__/,$subresult,2);
750: my %analyze=&Apache::lonnet::str2hash($subresult);
1.114 albertel 751: my @parts;
752: if (defined(@{ $analyze{'parts'} })) {
753: @parts=@{ $analyze{'parts'} };
754: }
1.101 albertel 755: foreach my $part (@parts) {
756: if (!exists($allparts{$part})) {$allparts{$part}=1;};
1.109 albertel 757: if ($analyze{$part.'.type'} eq 'numericalresponse' ||
758: $analyze{$part.'.type'} eq 'stringresponse' ||
759: $analyze{$part.'.type'} eq 'formularesponse' ) {
1.263 albertel 760: foreach my $name (keys(%{ $analyze{$part.'.answer'} })) {
761: my $i=0;
762: foreach my $answer_part (@{ $analyze{$part.'.answer'}{$name} }) {
763: push( @{ $overall{$part.'.answer'}[$i] },
764: $answer_part);
765: my $concatanswer= join("\0",@{ $answer_part });
766: if (($concatanswer eq '') || ($concatanswer=~/^\@/)) {
1.266 albertel 767: $answer_part = ['<span class="LC_error">'.&mt('Error').'</span>'];
1.263 albertel 768: }
769: $seedexample{join("\0",$part,$i,@{$answer_part})}=
770: $thisseed;
771: $i++;
772: }
1.219 www 773: }
1.275 albertel 774: if (!keys(%{ $analyze{$part.'.answer'} })) {
775: my $answer_part =
776: ['<span class="LC_error">'.&mt('Error').'</span>'];
777: $seedexample{join("\0",$part,0,@{$answer_part})}=
778: $thisseed;
779: push( @{ $overall{$part.'.answer'}[0] },
780: $answer_part);
781: }
1.101 albertel 782: }
783: }
784: }
1.114 albertel 785: &Apache::lonhtmlcommon::Update_PrgWin($request,\%prog_state,
1.146 albertel 786: &mt('Analyzing Results'));
1.308 bisitz 787: $request->print('<hr class="LC_edit_problem_divide" />'
788: .'<h3>'
789: .&mt('List of possible answers')
790: .'</h3>'
791: );
1.134 albertel 792: foreach my $part (sort(keys(%allparts))) {
1.109 albertel 793: if (defined(@{ $overall{$part.'.answer'} })) {
1.263 albertel 794: for (my $i=0;$i<scalar(@{ $overall{$part.'.answer'} });$i++) {
795: my $num_cols=scalar(@{ $overall{$part.'.answer'}[$i][0] });
1.308 bisitz 796: $request->print(&Apache::loncommon::start_data_table()
797: .&Apache::loncommon::start_data_table_header_row()
798: .'<th colspan="'.($num_cols+1).'">'
799: .&mt('Part').' '.$part
800: );
1.263 albertel 801: if (scalar(@{ $overall{$part.'.answer'} }) > 1) {
1.308 bisitz 802: $request->print(' '.&mt('Answer [_1]',$i+1));
1.263 albertel 803: }
1.308 bisitz 804: $request->print('</th>'
805: .&Apache::loncommon::end_data_table_header_row()
806: );
1.263 albertel 807: my %frequency;
808: foreach my $answer (sort {$a->[0] <=> $b->[0]} (@{ $overall{$part.'.answer'}[$i] })) {
809: $frequency{join("\0",@{ $answer })}++;
810: }
1.308 bisitz 811: $request->print(&Apache::loncommon::start_data_table_header_row()
812: .'<th colspan="'.($num_cols).'">'.&mt('Answer').'</th>'
813: .'<th>'.&mt('Frequency').'<br />'
814: .'('.&mt('click for example').')</th>'
815: .&Apache::loncommon::end_data_table_header_row()
816: );
1.263 albertel 817: foreach my $answer (sort {(split("\0",$a))[0] <=> (split("\0",$b))[0]} (keys(%frequency))) {
1.308 bisitz 818: $request->print(&Apache::loncommon::start_data_table_row()
819: .'<td>'
820: .join('</td><td>',split("\0",$answer))
821: .'</td>'
822: .'<td>'
823: .'<a href="'.$request->uri.'?rndseed='.$seedexample{join("\0",$part,$i,$answer)}.'">'.$frequency{$answer}.'</a>'
824: .'</td>'
825: .&Apache::loncommon::end_data_table_row()
826: );
1.263 albertel 827: }
1.308 bisitz 828: $request->print(&Apache::loncommon::end_data_table());
1.109 albertel 829: }
830: } else {
1.307 bisitz 831: $request->print('<p class="LC_warning">'
832: .&mt('Response [_1] is not analyzable at this time.',$part)
833: .'</p>'
834: );
1.101 albertel 835: }
836: }
1.130 albertel 837: if (scalar(keys(%allparts)) == 0 ) {
1.307 bisitz 838: $request->print('<p class="LC_warning">'
839: .&mt('Found no analyzable responses in this problem.'
840: .' Currently only Numerical, Formula and String response styles are supported.')
841: .'</p>'
842: );
1.130 albertel 843: }
1.114 albertel 844: &Apache::lonhtmlcommon::Close_PrgWin($request,\%prog_state);
1.109 albertel 845: &analyze_footer($request);
1.101 albertel 846: &Apache::lonhomework::showhash(%overall);
847: return $result;
1.74 albertel 848: }
849:
1.277 albertel 850: {
851: my $show_problem_status;
852: sub reset_show_problem_status {
853: undef($show_problem_status);
854: }
855:
856: sub set_show_problem_status {
857: my ($new_status) = @_;
858: $show_problem_status = lc($new_status);
859: }
860:
861: sub hide_problem_status {
862: return ($show_problem_status eq 'no'
863: || $show_problem_status eq 'no_feedback_ever');
864: }
865:
866: sub show_problem_status {
867: return ($show_problem_status eq 'yes'
1.285 albertel 868: || $show_problem_status eq 'answer'
1.277 albertel 869: || $show_problem_status eq '');
870: }
871:
872: sub show_some_problem_status {
873: return ($show_problem_status eq 'no');
874: }
875:
876: sub show_no_problem_status {
877: return ($show_problem_status eq 'no_feedback_ever');
878: }
1.285 albertel 879:
880: sub show_answer_problem_status {
881: return ($show_problem_status eq 'answer');
882: }
1.277 albertel 883: }
884:
1.64 albertel 885: sub editxmlmode {
1.145 albertel 886: my ($request,$file) = @_;
887: my $result;
888: my $problem=&Apache::lonnet::getfile($file);
889: if ($problem eq -1) {
1.305 bisitz 890: &Apache::lonxml::error(
891: '<b> '
892: .&mt('Unable to find [_1]',
893: '<span class="LC_filename">'.$file.'</span>')
894: .'</b>');
895:
1.145 albertel 896: $problem='';
897: }
1.204 albertel 898: if (defined($env{'form.editxmltext'}) || defined($env{'form.Undo'})) {
1.145 albertel 899: my $error=&handle_save_or_undo($request,\$problem,
1.204 albertel 900: \$env{'form.editxmltext'});
1.145 albertel 901: if (!$error) { $problem=&Apache::lonnet::getfile($file); }
902: }
1.204 albertel 903: &Apache::lonhomework::showhashsubset(\%env,'^form');
1.289 raeburn 904: if ( $env{'form.submitbutton'} eq &mt('Save and View') ) {
1.204 albertel 905: &Apache::lonhomework::showhashsubset(\%env,'^form');
1.289 raeburn 906: $env{'form.problemmode'}='view';
1.145 albertel 907: &renderpage($request,$file);
908: } else {
909: my ($rows,$cols) = &Apache::edit::textarea_sizes(\$problem);
910: if ($cols > 80) { $cols = 80; }
911: if ($cols < 70) { $cols = 70; }
912: if ($rows < 20) { $rows = 20; }
1.269 albertel 913: my $js =
914: &Apache::edit::js_change_detection().
1.289 raeburn 915: &Apache::loncommon::resize_textarea_js().
1.296 raeburn 916: &Apache::structuretags::setmode_javascript().
1.298 foxr 917: &Apache::lonhtmlcommon::dragmath_js("EditMathPopup");
1.270 albertel 918: my $only_body = ($env{'environment.remote'} eq 'off')? 0 : 1;
1.296 raeburn 919: my $dragmath_button =
920: &Apache::lonhtmlcommon::dragmath_button("LC_editxmltext",1);
1.238 albertel 921: my $start_page =
1.269 albertel 922: &Apache::loncommon::start_page(&mt("EditXML [_1]",$file),$js,
923: {'no_auto_mt_title' => 1,
1.270 albertel 924: 'only_body' => $only_body,
1.269 albertel 925: 'add_entries' => {
926: 'onresize' => q[resize_textarea('LC_editxmltext','LC_aftertextarea')],
927: 'onload' => q[resize_textarea('LC_editxmltext','LC_aftertextarea')],
928: }});
1.238 albertel 929: $result.=$start_page.
1.213 albertel 930: &renderpage($request,$file,['no_output_web'],1).
1.310 bisitz 931: '<form '.&Apache::edit::form_change_detection().' name="lonhomework" method="post" action="'.
1.204 albertel 932: &HTML::Entities::encode($env{'request.uri'},'<>&"').'">'.
1.179 albertel 933: &Apache::structuretags::remember_problem_state().'
1.278 albertel 934: <div class="LC_edit_problem_editxml_header">
1.280 albertel 935: <table class="LC_edit_problem_header_title"><tr><td>
936: '.&mt('Problem Editing').&Apache::loncommon::help_open_topic('Problem_Editor_XML_Index').'
937: </td><td align="right">
1.301 jms 938: '.&Apache::loncommon::helpLatexCheatsheet('Problem_LON-CAPA_Functions','Script Functions').'
1.280 albertel 939: </td></tr>
940: </table>
941: <div class="LC_edit_problem_discards">
1.289 raeburn 942: <input type="hidden" name="problemmode" value="editxml" />
1.294 foxr 943:
1.289 raeburn 944: <input type="button" name="submitmode" accesskey="d" value="'.&mt('Discard Edits and View').'" '.
945: 'onclick="javascript:setmode(this.form,'."'discard'".')" />
946: <input type="button" '.&Apache::edit::submit_ask_anyway('setmode(this.form,'."'edit'".')').'name="submitmode" accesskey="e" value="'.&mt('Edit').'" />
1.280 albertel 947: <input type="submit" name="Undo" accesskey="u" value="'.&mt('undo').'" />
1.296 raeburn 948: '.$dragmath_button.'
1.280 albertel 949: </div>
950: <div class="LC_edit_problem_saves">
1.289 raeburn 951: <input type="submit" name="submitbutton" accesskey="s" value="'.&mt('Save').'" />
1.296 raeburn 952: <input type="submit" name="submitbutton" accesskey="v" value="'.&mt('Save and View').'" />
1.280 albertel 953: </div>
954: <hr class="LC_edit_problem_divide" />
1.281 albertel 955: '.&Apache::lonxml::message_location().'
1.278 albertel 956: </div>
1.280 albertel 957: ' . '
1.269 albertel 958: <textarea '.&Apache::edit::element_change_detection().
959: ' rows="'.$rows.'" cols="'.$cols.'" style="width:100%" '.
960: ' name="editxmltext" id="LC_editxmltext">'.
961: &HTML::Entities::encode($problem,'<>&"').'</textarea>
962: <div id="LC_aftertextarea">
963: </div>
1.238 albertel 964: </form>'.&Apache::loncommon::end_page();
1.171 albertel 965: &Apache::lonxml::add_messages(\$result);
1.145 albertel 966: $request->print($result);
967: }
968: return '';
1.47 albertel 969: }
1.189 albertel 970:
1.301 jms 971: #
972: # Render the page in whatever target desired.
973: #
1.41 albertel 974: sub renderpage {
1.213 albertel 975: my ($request,$file,$targets,$return_string) = @_;
1.52 albertel 976:
1.211 albertel 977: my @targets = @{$targets || [&get_target()]};
1.204 albertel 978: &Apache::lonhomework::showhashsubset(\%env,'form.');
1.145 albertel 979: &Apache::lonxml::debug("Running targets ".join(':',@targets));
1.268 albertel 980:
1.171 albertel 981: my $overall_result;
1.145 albertel 982: foreach my $target (@targets) {
1.183 albertel 983: # FIXME need to do something intelligent when a problem goes
984: # from viewable to not viewable due to map conditions
985: #&setuppermissions();
986: #if ( $Apache::lonhomework::browse ne '2'
987: # && $Apache::lonhomework::browse ne 'F' ) {
988: # $request->print(" You most likely shouldn't see me.");
989: #}
1.145 albertel 990: #my $t0 = [&gettimeofday()];
1.211 albertel 991: my $output=1;
992: if ($target eq 'no_output_web') {
993: $target = 'web'; $output=0;
994: }
1.145 albertel 995: my $problem=&Apache::lonnet::getfile($file);
1.222 albertel 996: my $result;
1.145 albertel 997: if ($problem eq -1) {
1.260 albertel 998: $problem='';
1.222 albertel 999: my $filename=(split('/',$file))[-1];
1.260 albertel 1000: my $error =
1001: "<b> ".&mt('Unable to find [_1]',
1.305 bisitz 1002: '<span class="LC_filename">'.$filename.'</span>')
1.260 albertel 1003: ."</b>";
1004: $result.=
1005: &Apache::loncommon::simple_error_page($request,'Not available',
1006: $error);
1007: return;
1.145 albertel 1008: }
1.52 albertel 1009:
1.145 albertel 1010: my %mystyle;
1011: if ($target eq 'analyze') { %Apache::lonhomework::analyze=(); }
1012: if ($target eq 'answer') { &showhash(%Apache::lonhomework::history); }
1.204 albertel 1013: if ($target eq 'web') {&Apache::lonhomework::showhashsubset(\%env,'^form');}
1.145 albertel 1014:
1015: &Apache::lonxml::debug("Should be parsing now");
1.222 albertel 1016: $result .= &Apache::lonxml::xmlparse($request, $target, $problem,
1017: &setup_vars($target),%mystyle);
1.273 albertel 1018: &finished_parsing();
1.214 albertel 1019: if (!$output) { $result = ''; }
1.145 albertel 1020: #$request->print("Result follows:");
1021: if ($target eq 'modified') {
1022: &handle_save_or_undo($request,\$problem,\$result);
1023: } else {
1024: if ($target eq 'analyze') {
1025: $result=&Apache::lonnet::hashref2str(\%Apache::lonhomework::analyze);
1026: undef(%Apache::lonhomework::analyze);
1027: }
1028: #my $td=&tv_interval($t0);
1029: #if ( $Apache::lonxml::debug) {
1030: #$result =~ s:</body>::;
1031: #$result.="<br />Spent $td seconds processing target $target\n</body>";
1032: #}
1.171 albertel 1033: # $request->print($result);
1034: $overall_result.=$result;
1035: # $request->rflush();
1.145 albertel 1036: }
1037: #$request->print(":Result ends");
1038: #my $td=&tv_interval($t0);
1.52 albertel 1039: }
1.213 albertel 1040: if (!$return_string) {
1041: &Apache::lonxml::add_messages(\$overall_result);
1042: $request->print($overall_result);
1043: $request->rflush();
1044: } else {
1045: return $overall_result;
1046: }
1.41 albertel 1047: }
1048:
1.273 albertel 1049: sub finished_parsing {
1050: undef($Apache::lonhomework::parsing_a_problem);
1051: undef($Apache::lonhomework::parsing_a_task);
1052: }
1053:
1.42 albertel 1054: sub get_template_list {
1.282 albertel 1055: my ($extension) = @_;
1.145 albertel 1056: my $result;
1057: my @allnames;
1058: &Apache::lonxml::debug("Looking for :$extension:");
1.282 albertel 1059: my $glob_extension = $extension;
1060: if ($extension eq 'survey' || $extension eq 'exam') {
1061: $glob_extension = 'problem';
1062: }
1063: my @files = glob($Apache::lonnet::perlvar{'lonIncludes'}.
1064: '/templates/*.'.$glob_extension);
1.292 www 1065: @files = map {[$_,&mt(&Apache::lonnet::metadata($_, 'title')),
1066: (&Apache::lonnet::metadata($_, 'category')?&mt(&Apache::lonnet::metadata($_, 'category')):&mt('Miscellaneous')),
1067: &mt(&Apache::lonnet::metadata($_, 'help'))]} (@files);
1068: @files = sort {$a->[2].$a->[1] cmp $b->[2].$b->[1]} (@files);
1.287 raeburn 1069: my ($midpoint,$seconddiv,$numfiles);
1070: $numfiles = 0;
1071: foreach my $file (@files) {
1072: next if ($file->[1] !~ /\S/);
1073: $numfiles ++;
1074: }
1075: if ($numfiles > 0) {
1076: $result = '<div class="LC_left_float">';
1077: $midpoint = int($numfiles/2);
1078: if ($numfiles%2) {
1079: $midpoint ++;
1080: }
1081: }
1082: my $count = 0;
1.292 www 1083: my $currentcategory='';
1.282 albertel 1084: foreach my $file (@files) {
1085: next if ($file->[1] !~ /\S/);
1.292 www 1086: if ($file->[2] ne $currentcategory) {
1087: $currentcategory=$file->[2];
1088: if ((!$seconddiv) && ($count >= $midpoint)) {
1089: $result .= '</div>'."\n".'<div class="LC_left_float">'."\n";
1090: $seconddiv = 1;
1091: }
1092: $result.='<h3>'.$currentcategory.'</h3>';
1.293 www 1093: $count++;
1.292 www 1094: }
1.282 albertel 1095: $result .=
1096: '<label><input type="radio" name="template" value="'.$file->[0].'" />'.
1.292 www 1097: $file->[1].'</label>';
1098: if ($file->[3]) {
1099: $result.=&Apache::loncommon::help_open_topic($file->[3]);
1100: }
1101: my $filename=$file->[0];
1102: $filename=~s/^\/home\/httpd\/html//;
1103: $result.=' <font size="-2"><a href="'.$filename.'" target="sample">'.&mt('Example').'</font></a><br />'."\n";
1.287 raeburn 1104: $count ++;
1105: }
1106: if ($numfiles > 0) {
1107: $result .= '</div>'."\n".'<div class="LC_clear_float_footer"></div>'."\n";
1.42 albertel 1108: }
1.145 albertel 1109: return $result;
1.42 albertel 1110: }
1111:
1112: sub newproblem {
1.65 matthew 1113: my ($request) = @_;
1.282 albertel 1114:
1115: if ($env{'form.template'}) {
1116: my $file = $env{'form.template'};
1.65 matthew 1117: my $dest = &Apache::lonnet::filelocation("",$request->uri);
1.282 albertel 1118: &File::Copy::copy($file,$dest);
1.65 matthew 1119: &renderpage($request,$dest);
1.282 albertel 1120: return;
1121: }
1122:
1123: my ($extension) = ($request->uri =~ m/\.(\w+)$/);
1124: &Apache::lonxml::debug("Looking for :$extension:");
1125: my $templatelist=&get_template_list($extension);
1126: if ($env{'form.newfile'} && !$templatelist) {
1127: # no templates found
1.131 albertel 1128: my $templatefilename =
1.258 albertel 1129: $request->dir_config('lonIncludes').'/templates/blank.'.$extension;
1.131 albertel 1130: &Apache::lonxml::debug("$templatefilename");
1131: my $dest = &Apache::lonnet::filelocation("",$request->uri);
1.282 albertel 1132: &File::Copy::copy($templatefilename,$dest);
1.131 albertel 1133: &renderpage($request,$dest);
1.85 albertel 1134: } else {
1.176 albertel 1135: my $url=&HTML::Entities::encode($request->uri,'<>&"');
1136: my $shownurl=$url;
1.157 albertel 1137: $shownurl=~s-^/~-/priv/-;
1.65 matthew 1138: my $dest = &Apache::lonnet::filelocation("",$request->uri);
1.128 albertel 1139: my $errormsg;
1.85 albertel 1140: my $instructions;
1.240 albertel 1141: my $start_page =
1142: &Apache::loncommon::start_page("Create New $extension");
1.258 albertel 1143: $request->print("
1.240 albertel 1144: $start_page
1.258 albertel 1145: <h1>".&mt("Creating a new $extension resource.")."</h1>
1.128 albertel 1146: $errormsg
1.258 albertel 1147: ".&mt("The requested file [_1] currently does not exist.",
1.307 bisitz 1148: '<span class="LC_filename">'.$shownurl.'</span>')."
1.105 www 1149: <p>
1.258 albertel 1150: <b>
1151: ".&mt("To create a new $extension, select a template from the".
1.310 bisitz 1152: " list below. Then click on the \"Create $extension\" button.").'</b>
1153: </p><form action="'.$url.'" method="post">');
1.258 albertel 1154:
1.85 albertel 1155: if (defined($templatelist)) {
1.282 albertel 1156: $request->print($templatelist);
1.85 albertel 1157: }
1.282 albertel 1158: $request->print('<br /><input type="submit" name="newfile" value="'.
1159: &mt("Create $extension").'" />');
1.238 albertel 1160: $request->print("</form></p>".&Apache::loncommon::end_page());
1.65 matthew 1161: }
1.282 albertel 1162: return;
1.42 albertel 1163: }
1164:
1.268 albertel 1165: sub update_construct_style {
1166: if ($env{'request.state'} eq "construct"
1.289 raeburn 1167: && $env{'form.problemmode'} eq 'view'
1.268 albertel 1168: && defined($env{'form.submitted'})
1169: && !defined($env{'form.resetdata'})
1170: && !defined($env{'form.newrandomization'})) {
1171: if ((!$env{'form.style_file'} && $env{'construct.style'})
1172: ||$env{'form.clear_style_file'}) {
1.303 raeburn 1173: &Apache::lonnet::delenv('construct.style');
1.268 albertel 1174: } elsif ($env{'form.style_file'}
1175: && $env{'construct.style'} ne $env{'form.style_file'}) {
1.291 raeburn 1176: &Apache::lonnet::appenv({'construct.style' =>
1177: $env{'form.style_file'}});
1.268 albertel 1178: }
1179: }
1180: }
1181:
1182:
1.41 albertel 1183: sub handler {
1.145 albertel 1184: #my $t0 = [&gettimeofday()];
1185: my $request=$_[0];
1.223 albertel 1186: $Apache::lonxml::request=$request;
1.204 albertel 1187: $Apache::lonxml::debug=$env{'user.debug'};
1188: $env{'request.uri'}=$request->uri;
1.180 albertel 1189: &setuppermissions();
1.193 albertel 1190:
1.145 albertel 1191: my $file=&Apache::lonnet::filelocation("",$request->uri);
1192:
1193: #check if we know where we are
1.204 albertel 1194: if ($env{'request.course.fn'} && !&Apache::lonnet::symbread()) {
1.145 albertel 1195: # if we are browsing we might not be able to know where we are
1.173 albertel 1196: if ($Apache::lonhomework::browse ne 'F' &&
1.204 albertel 1197: $env{'request.state'} ne "construct") {
1.145 albertel 1198: #should know where we are, so ask
1.253 albertel 1199: &unset_permissions();
1200: $request->internal_redirect('/adm/ambiguous');
1201: return OK;
1.145 albertel 1202: }
1203: }
1.253 albertel 1204: if (&setupheader($request)) {
1205: &unset_permissions();
1206: return OK;
1207: }
1.244 albertel 1208: &Apache::lonxml::debug("Permissions:$Apache::lonhomework::browse:$Apache::lonhomework::viewgrades:$Apache::lonhomework::modifygrades:$Apache::lonhomework::queuegrade");
1.204 albertel 1209: &Apache::lonxml::debug("Problem Mode ".$env{'form.problemmode'});
1.261 albertel 1210: my ($symb) = &Apache::lonnet::whichuser();
1.145 albertel 1211: &Apache::lonxml::debug('symb is '.$symb);
1.204 albertel 1212: if ($env{'request.state'} eq "construct") {
1.145 albertel 1213: if ( -e $file ) {
1214: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
1215: ['problemmode']);
1.204 albertel 1216: if (!(defined $env{'form.problemmode'})) {
1.145 albertel 1217: #first visit to problem in construction space
1.289 raeburn 1218: $env{'form.problemmode'}= 'view';
1.145 albertel 1219: &renderpage($request,$file);
1.289 raeburn 1220: } elsif ($env{'form.problemmode'} eq 'editxml') {
1.145 albertel 1221: &editxmlmode($request,$file);
1.289 raeburn 1222: } elsif ($env{'form.problemmode'} eq 'calcanswers') {
1.145 albertel 1223: &analyze($request,$file);
1224: } else {
1.268 albertel 1225: &update_construct_style();
1.145 albertel 1226: &renderpage($request,$file);
1227: }
1228: } else {
1229: # requested file doesn't exist in contruction space
1230: &newproblem($request);
1231: }
1232: } else {
1233: # just render the page normally outside of construction space
1234: &Apache::lonxml::debug("not construct");
1.52 albertel 1235: &renderpage($request,$file);
1.41 albertel 1236: }
1.145 albertel 1237: #my $td=&tv_interval($t0);
1238: #&Apache::lonxml::debug("Spent $td seconds processing");
1239: # always turn off debug messages
1240: $Apache::lonxml::debug=0;
1.253 albertel 1241: &unset_permissions();
1.145 albertel 1242: return OK;
1.52 albertel 1243:
1.1 albertel 1244: }
1245:
1246: 1;
1247: __END__
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