Annotation of loncom/homework/lonhomework.pm, revision 1.317.4.3
1.63 albertel 1: # The LearningOnline Network with CAPA
1.52 albertel 2: # The LON-CAPA Homework handler
1.63 albertel 3: #
1.317.4.3! raeburn 4: # $Id: lonhomework.pm,v 1.317.4.2 2010/11/09 17:45:09 raeburn 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();
1.317.4.3! raeburn 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 ($env{'form.grade_target'});
1.317.4.1 raeburn 115: } elsif ($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:
1.36 albertel 178: sub createmenu {
1.145 albertel 179: my ($which,$request)=@_;
180: if ($which eq 'grade') {
1.306 bisitz 181: $request->print('<script type="text/javascript" language="JavaScript">
1.91 albertel 182: hwkmenu=window.open("/res/adm/pages/homeworkmenu.html","homeworkremote",
1.52 albertel 183: "height=350,width=150,menubar=no");
184: </script>');
1.145 albertel 185: }
1.36 albertel 186: }
187:
1.200 albertel 188: sub proctor_checked_in {
1.226 albertel 189: my ($slot_name,$slot,$type)=@_;
190: my @possible_proctors=split(",",$slot->{'proctor'});
191:
1.248 albertel 192: return 1 if (!@possible_proctors);
193:
1.226 albertel 194: my $key;
195: if ($type eq 'Task') {
1.230 albertel 196: my $version=$Apache::lonhomework::history{'resource.0.version'};
197: $key ="resource.$version.0.checkedin";
1.226 albertel 198: } elsif ($type eq 'problem') {
199: $key ='resource.0.checkedin';
200: }
1.249 albertel 201: # backward compatability, used to be username@domain,
202: # now is username:domain
203: my $who = $Apache::lonhomework::history{$key};
204: if ($who !~ /:/) {
205: $who =~ tr/@/:/;
206: }
1.226 albertel 207: foreach my $possible (@possible_proctors) {
1.249 albertel 208: if ($who eq $possible
1.226 albertel 209: && $Apache::lonhomework::history{$key.'.slot'} eq $slot_name) {
1.202 albertel 210: return 1;
211: }
212: }
1.226 albertel 213:
1.200 albertel 214: return 0;
215: }
216:
1.226 albertel 217: sub check_slot_access {
218: my ($id,$type)=@_;
219:
1.207 albertel 220: # does it pass normal muster
1.226 albertel 221: my ($status,$datemsg)=&check_access($id);
222:
1.252 albertel 223: my $useslots = &Apache::lonnet::EXT("resource.0.useslots");
1.251 albertel 224: if ($useslots ne 'resource' && $useslots ne 'map'
225: && $useslots ne 'map_map') {
1.226 albertel 226: return ($status,$datemsg);
227: }
228:
1.200 albertel 229: if ($status eq 'SHOW_ANSWER' ||
230: $status eq 'CLOSED' ||
231: $status eq 'INVALID_ACCESS' ||
232: $status eq 'UNAVAILABLE') {
233: return ($status,$datemsg);
234: }
1.204 albertel 235: if ($env{'request.state'} eq "construct") {
1.203 albertel 236: return ($status,$datemsg);
237: }
1.226 albertel 238:
239: if ($type eq 'Task') {
240: my $version=$Apache::lonhomework::history{'resource.version'};
1.230 albertel 241: if ($Apache::lonhomework::history{"resource.$version.0.checkedin"} &&
242: $Apache::lonhomework::history{"resource.$version.0.status"} eq 'pass') {
1.226 albertel 243: return ('SHOW_ANSWER');
244: }
1.207 albertel 245: }
1.226 albertel 246:
1.288 raeburn 247: my $availablestudent = &Apache::lonnet::EXT("resource.0.availablestudent");
248: my $available = &Apache::lonnet::EXT("resource.0.available");
249: my @slots= (split(':',$availablestudent),split(':',$available));
1.210 albertel 250:
1.200 albertel 251: # if (!@slots) {
252: # return ($status,$datemsg);
253: # }
254: my $slotstatus='NOT_IN_A_SLOT';
1.206 albertel 255: my ($returned_slot,$slot_name);
1.210 albertel 256: foreach my $slot (@slots) {
1.241 albertel 257: $slot =~ s/(^\s*|\s*$)//g;
1.201 albertel 258: &Apache::lonxml::debug("getting $slot");
1.200 albertel 259: my %slot=&Apache::lonnet::get_slot($slot);
1.201 albertel 260: &Apache::lonhomework::showhash(%slot);
1.200 albertel 261: if ($slot{'starttime'} < time &&
262: $slot{'endtime'} > time &&
1.297 raeburn 263: &Apache::loncommon::check_ip_acc($slot{'ip'})) {
1.202 albertel 264: &Apache::lonxml::debug("$slot is good");
265: $slotstatus='NEEDS_CHECKIN';
266: $returned_slot=\%slot;
1.206 albertel 267: $slot_name=$slot;
1.200 albertel 268: last;
269: }
270: }
1.202 albertel 271: if ($slotstatus eq 'NEEDS_CHECKIN' &&
1.226 albertel 272: &proctor_checked_in($slot_name,$returned_slot,$type)) {
1.317.4.2 raeburn 273: &Apache::lonxml::debug("proctor checked in");
274: $slotstatus=$status;
1.200 albertel 275: }
1.226 albertel 276:
1.235 albertel 277: my ($is_correct,$got_grade,$checkedin);
1.226 albertel 278: if ($type eq 'Task') {
1.230 albertel 279: my $version=$Apache::lonhomework::history{'resource.0.version'};
1.231 albertel 280: $got_grade =
281: ($Apache::lonhomework::history{"resource.$version.0.status"}
282: =~ /^(?:pass|fail)$/);
1.235 albertel 283: $is_correct =
284: ($Apache::lonhomework::history{"resource.$version.0.status"} eq 'pass'
285: || $Apache::lonhomework::history{"resource.0.solved"} =~ /^correct_/ );
1.226 albertel 286: $checkedin =
1.230 albertel 287: $Apache::lonhomework::history{"resource.$version.0.checkedin"};
1.226 albertel 288: } elsif ($type eq 'problem') {
1.252 albertel 289: $got_grade = 1;
290: $checkedin = $Apache::lonhomework::history{"resource.0.checkedin"};
291: $is_correct =
292: ($Apache::lonhomework::history{"resource.0.solved"} =~/^correct_/);
1.226 albertel 293: }
294:
1.235 albertel 295: &Apache::lonxml::debug(" slot is $slotstatus checkedin ($checkedin) got_grade ($got_grade) is_correct ($is_correct)");
296:
1.243 albertel 297: # no slot is currently open, and has been checked in for this version
298: # but hasn't got a grade, therefore must be awaiting a grade
299: if (!defined($slot_name)
300: && $checkedin
1.236 albertel 301: && !$got_grade) {
302: return ('WAITING_FOR_GRADE');
303: }
304:
1.309 raeburn 305: # Previously used slot is no longer open, and has been checked in for this version.
306: # However, the problem is not closed, and potentially, another slot might be
307: # used to gain access to it to work on it, until the due date is reached, and the
308: # problem then becomes CLOSED. Therefore return the slotstatus -
309: # (which will be NOT_IN_SLOT).
1.252 albertel 310: if (!defined($slot_name)
311: && $checkedin
312: && $type eq 'problem') {
1.309 raeburn 313: return ($slotstatus);
1.252 albertel 314: }
315:
1.226 albertel 316: if ($slotstatus eq 'NOT_IN_A_SLOT'
317: && $checkedin ) {
318:
1.231 albertel 319: if ($got_grade) {
1.209 albertel 320: return ('SHOW_ANSWER');
321: } else {
322: return ('WAITING_FOR_GRADE');
323: }
1.226 albertel 324:
1.207 albertel 325: }
1.255 albertel 326:
1.235 albertel 327: if ( $is_correct) {
1.255 albertel 328: if ($type eq 'problem') {
329: return ($status);
330: }
1.235 albertel 331: return ('SHOW_ANSWER');
332: }
1.255 albertel 333:
1.225 albertel 334: if ( $status eq 'CANNOT_ANSWER' &&
335: ($slotstatus ne 'NEEDS_CHECKIN' && $slotstatus ne 'NOT_IN_A_SLOT')) {
336: return ($status,$datemsg);
337: }
338:
1.206 albertel 339: return ($slotstatus,$datemsg,$slot_name,$returned_slot);
1.198 albertel 340: }
1.200 albertel 341:
1.301 jms 342: # JB, 9/24/2002: Any changes in this function may require a change
343: # in lonnavmaps::resource::getDateStatus.
1.53 www 344: sub check_access {
1.145 albertel 345: my ($id) = @_;
346: my $date ='';
347: my $status;
348: my $datemsg = '';
349: my $lastdate = '';
350: my $type;
351: my $passed;
352:
1.204 albertel 353: if ($env{'request.state'} eq "construct") {
354: if ($env{'form.problemstate'}) {
355: if ($env{'form.problemstate'} =~ /^CANNOT_ANSWER/) {
1.277 albertel 356: if ( ! ($env{'form.problemstate'} eq 'CANNOT_ANSWER_correct'
357: && &hide_problem_status())) {
1.168 albertel 358: return ('CANNOT_ANSWER',
1.174 www 359: &mt('is in this state due to author settings.'));
1.167 albertel 360: }
1.165 albertel 361: } else {
1.204 albertel 362: return ($env{'form.problemstate'},
1.174 www 363: &mt('is in this state due to author settings.'));
1.165 albertel 364: }
365: }
1.145 albertel 366: &Apache::lonxml::debug("in construction ignoring dates");
367: $status='CAN_ANSWER';
1.146 albertel 368: $datemsg=&mt('is in under construction');
1.163 albertel 369: # return ($status,$datemsg);
1.145 albertel 370: }
371:
372: &Apache::lonxml::debug("checking for part :$id:");
373: &Apache::lonxml::debug("time:".time);
1.152 albertel 374:
1.261 albertel 375: my ($symb)=&Apache::lonnet::whichuser();
1.212 albertel 376: &Apache::lonxml::debug("symb:".$symb);
377: #if ($env{'request.state'} ne "construct" && $symb ne '') {
1.204 albertel 378: if ($env{'request.state'} ne "construct") {
1.288 raeburn 379: my $idacc = &Apache::lonnet::EXT("resource.$id.acc");
1.297 raeburn 380: my $allowed=&Apache::loncommon::check_ip_acc($idacc);
1.163 albertel 381: if (!$allowed && ($Apache::lonhomework::browse ne 'F')) {
382: $status='INVALID_ACCESS';
383: $date=&mt("can not be accessed from your location.");
1.145 albertel 384: return($status,$date);
385: }
1.163 albertel 386:
1.226 albertel 387: foreach my $temp ("opendate","duedate","answerdate") {
1.163 albertel 388: $lastdate = $date;
1.247 albertel 389: if ($temp eq 'duedate') {
390: $date = &due_date($id);
391: } else {
392: $date = &Apache::lonnet::EXT("resource.$id.$temp");
393: }
394:
1.163 albertel 395: my $thistype = &Apache::lonnet::EXT("resource.$id.$temp.type");
396: if ($thistype =~ /^(con_lost|no_such_host)/ ||
397: $date =~ /^(con_lost|no_such_host)/) {
398: $status='UNAVAILABLE';
399: $date=&mt("may open later.");
400: return($status,$date);
401: }
402: if ($thistype eq 'date_interval') {
403: if ($temp eq 'opendate') {
404: $date=&Apache::lonnet::EXT("resource.$id.duedate")-$date;
405: }
406: if ($temp eq 'answerdate') {
407: $date=&Apache::lonnet::EXT("resource.$id.duedate")+$date;
408: }
1.145 albertel 409: }
1.163 albertel 410: &Apache::lonxml::debug("found :$date: for :$temp:");
411: if ($date eq '') {
412: $date = &mt("an unknown date"); $passed = 0;
413: } elsif ($date eq 'con_lost') {
414: $date = &mt("an indeterminate date"); $passed = 0;
415: } else {
416: if (time < $date) { $passed = 0; } else { $passed = 1; }
1.274 www 417: $date = &Apache::lonlocal::locallocaltime($date);
1.145 albertel 418: }
1.163 albertel 419: if (!$passed) { $type=$temp; last; }
1.145 albertel 420: }
1.163 albertel 421: &Apache::lonxml::debug("have :$type:$passed:");
422: if ($passed) {
423: $status='SHOW_ANSWER';
424: $datemsg=$date;
425: } elsif ($type eq 'opendate') {
426: $status='CLOSED';
427: $datemsg = &mt("will open on")." $date";
428: } elsif ($type eq 'duedate') {
429: $status='CAN_ANSWER';
430: $datemsg = &mt("is due at")." $date";
431: } elsif ($type eq 'answerdate') {
432: $status='CLOSED';
433: $datemsg = &mt("was due on")." $lastdate".&mt(", and answers will be available on")." $date";
1.145 albertel 434: }
435: }
1.212 albertel 436: if ($status eq 'CAN_ANSWER' ||
437: (($Apache::lonhomework::browse eq 'F') && ($status eq 'CLOSED'))) {
1.145 albertel 438: #check #tries, and if correct.
439: my $tries = $Apache::lonhomework::history{"resource.$id.tries"};
440: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
441: if ( $tries eq '' ) { $tries = '0'; }
1.164 albertel 442: if ( $maxtries eq '' &&
1.204 albertel 443: $env{'request.state'} ne 'construct') { $maxtries = '2'; }
1.164 albertel 444: if ($maxtries && $tries >= $maxtries) { $status = 'CANNOT_ANSWER'; }
1.145 albertel 445: # if (correct and show prob status) or excused then CANNOT_ANSWER
446: if(($Apache::lonhomework::history{"resource.$id.solved"}=~/^correct/
447: &&
1.277 albertel 448: &show_problem_status())
1.145 albertel 449: ||
450: $Apache::lonhomework::history{"resource.$id.solved"}=~/^excused/) {
451: $status = 'CANNOT_ANSWER';
452: }
1.285 albertel 453: if ($status eq 'CANNOT_ANSWER'
454: && &show_answer_problem_status()) {
455: $status = 'SHOW_ANSWER';
456: }
1.121 albertel 457: }
1.181 albertel 458: if ($status eq 'CAN_ANSWER' || $status eq 'CANNOT_ANSWER') {
1.286 albertel 459: my @interval=&Apache::lonnet::EXT("resource.$id.interval");
460: &Apache::lonxml::debug("looking for interval @interval");
461: if ($interval[0]) {
462: my $first_access=&Apache::lonnet::get_first_access($interval[1]);
1.177 albertel 463: &Apache::lonxml::debug("looking for accesstime $first_access");
464: if (!$first_access) {
465: $status='NOT_YET_VIEWED';
1.247 albertel 466: my $due_date = &due_date($id);
1.256 albertel 467: my $seconds_left = $due_date - time;
1.286 albertel 468: if ($seconds_left > $interval[0] || $due_date eq '') {
469: $seconds_left = $interval[0];
1.256 albertel 470: }
471: $datemsg=&seconds_to_human_length($seconds_left);
1.177 albertel 472: }
473: }
474: }
1.247 albertel 475:
1.133 albertel 476: #if (($status ne 'CLOSED') && ($Apache::lonhomework::type eq 'exam') &&
477: # (!$Apache::lonhomework::history{"resource.0.outtoken"})) {
478: # return ('UNCHECKEDOUT','needs to be checked out');
479: #}
1.54 www 480:
481:
1.145 albertel 482: &Apache::lonxml::debug("sending back :$status:$datemsg:");
483: if (($Apache::lonhomework::browse eq 'F') && ($status eq 'CLOSED')) {
484: &Apache::lonxml::debug("should be allowed to browse a resource when closed");
485: $status='CAN_ANSWER';
1.146 albertel 486: $datemsg=&mt('is closed but you are allowed to view it');
1.145 albertel 487: }
1.106 albertel 488:
1.145 albertel 489: return ($status,$datemsg);
1.20 albertel 490: }
1.301 jms 491: # this should work exactly like the copy in lonnavmaps.pm
1.246 albertel 492: sub due_date {
1.250 albertel 493: my ($part_id,$symb,$udom,$uname)=@_;
1.246 albertel 494: my $date;
1.286 albertel 495: my @interval= &Apache::lonnet::EXT("resource.$part_id.interval",$symb,
1.250 albertel 496: $udom,$uname);
1.286 albertel 497: &Apache::lonxml::debug("looking for interval $part_id $symb @interval");
1.250 albertel 498: my $due_date= &Apache::lonnet::EXT("resource.$part_id.duedate",$symb,
499: $udom,$uname);
1.247 albertel 500: &Apache::lonxml::debug("looking for due_date $part_id $symb $due_date");
1.286 albertel 501: if ($interval[0] =~ /\d+/) {
502: my $first_access=&Apache::lonnet::get_first_access($interval[1],$symb);
503: &Apache::lonxml::debug("looking for first_access $first_access ($interval[1])");
1.247 albertel 504: if (defined($first_access)) {
1.286 albertel 505: my $interval = $first_access+$interval[0];
1.283 albertel 506: $date = (!$due_date || $interval < $due_date) ? $interval
507: : $due_date;
1.247 albertel 508: } else {
509: $date = $due_date;
510: }
511: } else {
512: $date = $due_date;
1.246 albertel 513: }
514: return $date
515: }
516:
1.192 albertel 517: sub seconds_to_human_length {
518: my ($length)=@_;
519:
520: my $seconds=$length%60; $length=int($length/60);
521: my $minutes=$length%60; $length=int($length/60);
522: my $hours=$length%24; $length=int($length/24);
523: my $days=$length;
524:
525: my $timestr;
526: if ($days > 0) { $timestr.=&mt('[quant,_1,day]',$days); }
527: if ($hours > 0) { $timestr.=($timestr?", ":"").
528: &mt('[quant,_1,hour]',$hours); }
529: if ($minutes > 0) { $timestr.=($timestr?", ":"").
530: &mt('[quant,_1,minute]',$minutes); }
531: if ($seconds > 0) { $timestr.=($timestr?", ":"").
532: &mt('[quant,_1,second]',$seconds); }
533: return $timestr;
534: }
535:
1.41 albertel 536: sub showhash {
1.145 albertel 537: my (%hash) = @_;
538: &showhashsubset(\%hash,'.');
539: return '';
1.79 albertel 540: }
541:
1.106 albertel 542: sub showarray {
543: my ($array)=@_;
544: my $string="(";
545: foreach my $elm (@{ $array }) {
1.193 albertel 546: if (ref($elm) eq 'ARRAY') {
547: $string.=&showarray($elm);
548: } elsif (ref($elm) eq 'HASH') {
549: $string.= "HASH --- \n<br />";
550: $string.= &showhashsubset($elm,'.');
1.106 albertel 551: } else {
552: $string.="$elm,"
553: }
554: }
555: chop($string);
556: $string.=")";
557: return $string;
558: }
559:
1.79 albertel 560: sub showhashsubset {
1.145 albertel 561: my ($hash,$keyre) = @_;
562: my $resultkey;
563: foreach $resultkey (sort keys %$hash) {
1.193 albertel 564: if ($resultkey !~ /$keyre/) { next; }
565: if (ref($$hash{$resultkey}) eq 'ARRAY' ) {
566: &Apache::lonxml::debug("$resultkey ---- ".
567: &showarray($$hash{$resultkey}));
568: } elsif (ref($$hash{$resultkey}) eq 'HASH' ) {
569: &Apache::lonxml::debug("$resultkey ---- $$hash{$resultkey}");
570: &showhashsubset($$hash{$resultkey},'.');
571: } else {
572: &Apache::lonxml::debug("$resultkey ---- $$hash{$resultkey}");
1.145 albertel 573: }
574: }
575: &Apache::lonxml::debug("\n<br />restored values^</br>\n");
576: return '';
1.41 albertel 577: }
578:
579: sub setuppermissions {
1.204 albertel 580: $Apache::lonhomework::browse= &Apache::lonnet::allowed('bre',$env{'request.filename'});
581: my $viewgrades = &Apache::lonnet::allowed('vgr',$env{'request.course.id'});
1.145 albertel 582: if (! $viewgrades &&
1.204 albertel 583: exists($env{'request.course.sec'}) &&
584: $env{'request.course.sec'} !~ /^\s*$/) {
585: $viewgrades = &Apache::lonnet::allowed('vgr',$env{'request.course.id'}.
586: '/'.$env{'request.course.sec'});
1.145 albertel 587: }
1.244 albertel 588: $Apache::lonhomework::viewgrades = $viewgrades;
589:
1.185 albertel 590: if ($Apache::lonhomework::browse eq 'F' &&
1.204 albertel 591: $env{'form.devalidatecourseresdata'} eq 'on') {
1.261 albertel 592: my (undef,$courseid) = &Apache::lonnet::whichuser();
1.204 albertel 593: &Apache::lonnet::devalidatecourseresdata($env{"course.$courseid.num"},
594: $env{"course.$courseid.domain"});
1.185 albertel 595: }
1.244 albertel 596:
1.205 albertel 597: my $modifygrades = &Apache::lonnet::allowed('mgr',$env{'request.course.id'});
598: if (! $modifygrades &&
599: exists($env{'request.course.sec'}) &&
600: $env{'request.course.sec'} !~ /^\s*$/) {
601: $modifygrades =
602: &Apache::lonnet::allowed('mgr',$env{'request.course.id'}.
603: '/'.$env{'request.course.sec'});
604: }
605: $Apache::lonhomework::modifygrades = $modifygrades;
1.244 albertel 606:
607: my $queuegrade = &Apache::lonnet::allowed('mqg',$env{'request.course.id'});
608: if (! $queuegrade &&
609: exists($env{'request.course.sec'}) &&
610: $env{'request.course.sec'} !~ /^\s*$/) {
611: $queuegrade =
612: &Apache::lonnet::allowed('qgr',$env{'request.course.id'}.
613: '/'.$env{'request.course.sec'});
614: }
615: $Apache::lonhomework::queuegrade = $queuegrade;
1.205 albertel 616: return '';
1.41 albertel 617: }
618:
1.253 albertel 619: sub unset_permissions {
620: undef($Apache::lonhomework::queuegrade);
621: undef($Apache::lonhomework::modifygrades);
622: undef($Apache::lonhomework::viewgrades);
623: undef($Apache::lonhomework::browse);
624: }
625:
1.41 albertel 626: sub setupheader {
1.120 albertel 627: my $request=$_[0];
1.197 albertel 628: &Apache::loncommon::content_type($request,'text/html');
1.120 albertel 629: if (!$Apache::lonxml::debug && ($ENV{'REQUEST_METHOD'} eq 'GET')) {
630: &Apache::loncommon::no_cache($request);
631: }
1.196 albertel 632: # $request->set_last_modified(&Apache::lonnet::metadata($request->uri,
633: # 'lastrevisiondate'));
1.120 albertel 634: $request->send_http_header;
635: return OK if $request->header_only;
636: return ''
1.41 albertel 637: }
1.35 albertel 638:
1.47 albertel 639: sub handle_save_or_undo {
1.145 albertel 640: my ($request,$problem,$result) = @_;
641: my $file = &Apache::lonnet::filelocation("",$request->uri);
642: my $filebak =$file.".bak";
643: my $filetmp =$file.".tmp";
644: my $error=0;
1.204 albertel 645: if ($env{'form.Undo'} eq &mt('undo')) {
1.145 albertel 646: my $error=0;
1.284 albertel 647: if (!&File::Copy::copy($file,$filetmp)) { $error=1; }
648: if ((!$error) && (!&File::Copy::copy($filebak,$file))) { $error=1; }
649: if ((!$error) && (!&File::Copy::move($filetmp,$filebak))) { $error=1; }
1.145 albertel 650: if (!$error) {
1.266 albertel 651: &Apache::lonxml::info("<p><b>".
652: &mt("Undid changes, Switched [_1] and [_2]",
653: '<span class="LC_filename">'.$filebak.
654: '</span>',
655: '<span class="LC_filename">'.$file.
656: '</span>')."</b></p>");
1.145 albertel 657: } else {
1.266 albertel 658: &Apache::lonxml::info("<p><span class=\"LC_error\">".
659: &mt("Unable to undo, unable to switch [_1] and [_2]",
660: '<span class="LC_filename">'.
661: $filebak.'</span>',
662: '<span class="LC_filename">'.
663: $file.'</span>')."</span></p>");
1.145 albertel 664: $error=1;
665: }
1.52 albertel 666: } else {
1.262 banghart 667: &Apache::lonnet::correct_line_ends($result);
1.145 albertel 668: my $fs=Apache::File->new(">$filebak");
669: if (defined($fs)) {
670: print $fs $$problem;
671: } else {
1.266 albertel 672: &Apache::lonxml::info("<span class=\"LC_error\">".
673: &mt("Unable to make backup [_1]",
674: '<span class="LC_filename">'.
675: $filebak.'</span>')."</span>");
1.145 albertel 676: $error=2;
677: }
678: my $fh=Apache::File->new(">$file");
679: if (defined($fh)) {
680: print $fh $$result;
681: } else {
1.266 albertel 682: &Apache::lonxml::info('<span class="LC_error">'.
683: &mt("Unable to write to [_1]",
684: '<span class="LC_filename">'.
685: $file.'</span>').
686: '</span>');
1.145 albertel 687: $error|=4;
688: }
1.52 albertel 689: }
1.145 albertel 690: return $error;
1.64 albertel 691: }
692:
1.101 albertel 693: sub analyze_header {
694: my ($request) = @_;
1.289 raeburn 695: my $js = &Apache::structuretags::setmode_javascript();
1.312 bisitz 696:
697: # Breadcrumbs
698: my $brcrum = [{'href' => &Apache::loncommon::authorspace(),
699: 'text' => 'Construction Space'},
700: {'href' => '',
701: 'text' => 'Problem Testing'},
702: {'href' => '',
703: 'text' => 'Analyzing a problem'}];
704:
1.238 albertel 705: my $result =
1.312 bisitz 706: &Apache::loncommon::start_page('Analyzing a problem',
707: $js,
708: {'bread_crumbs' => $brcrum,})
1.311 bisitz 709: .&Apache::loncommon::head_subbox(
710: &Apache::loncommon::CSTR_pageheader());
1.238 albertel 711: $result .=
712: &Apache::lonxml::message_location().'
1.310 bisitz 713: <form name="lonhomework" method="post" action="'.
1.204 albertel 714: &HTML::Entities::encode($env{'request.uri'},'<>&"').'">'.
1.289 raeburn 715: '<input type="hidden" name="problemmode" value="'.
716: $env{'form.problemmode'}.'" />'.
1.179 albertel 717: &Apache::structuretags::remember_problem_state().'
1.278 albertel 718: <div class="LC_edit_problem_analyze_header">
1.289 raeburn 719: <input type="button" name="submitmode" value="'.&mt("EditXML").'" '.
720: 'onclick="javascript:setmode(this.form,'."'editxml'".')" />
721: <input type="button" name="submitmode" value="'.&mt('Edit').'" '.
722: 'onclick="javascript:setmode(this.form,'."'edit'".')" />
1.313 bisitz 723: <hr />
1.289 raeburn 724: <input type="button" name="submitmode" value="'.&mt("View").'" '.
725: 'onclick="javascript:setmode(this.form,'."'view'".')" />
1.313 bisitz 726: <hr />
1.278 albertel 727: </div>
1.101 albertel 728: </form>';
1.171 albertel 729: &Apache::lonxml::add_messages(\$result);
1.101 albertel 730: $request->print($result);
731: $request->rflush();
732: }
733:
1.109 albertel 734: sub analyze_footer {
735: my ($request) = @_;
1.237 albertel 736: $request->print(&Apache::loncommon::end_page());
1.109 albertel 737: $request->rflush();
738: }
739:
1.74 albertel 740: sub analyze {
1.101 albertel 741: my ($request,$file) = @_;
742: &Apache::lonxml::debug("Analyze");
743: my $result;
744: my %overall;
1.219 www 745: my %seedexample;
1.101 albertel 746: my %allparts;
1.204 albertel 747: my $rndseed=$env{'form.rndseed'};
1.101 albertel 748: &analyze_header($request);
1.114 albertel 749: my %prog_state=
1.146 albertel 750: &Apache::lonhtmlcommon::Create_PrgWin($request,&mt('Analyze Progress'),
751: &mt('Getting Problem Variants'),
1.204 albertel 752: $env{'form.numtoanalyze'},
1.175 albertel 753: 'inline',undef);
1.204 albertel 754: for(my $i=1;$i<$env{'form.numtoanalyze'}+1;$i++) {
1.114 albertel 755: &Apache::lonhtmlcommon::Increment_PrgWin($request,\%prog_state,
1.146 albertel 756: &mt('last problem'));
1.182 albertel 757: if (&Apache::loncommon::connection_aborted($request)) { return; }
1.219 www 758: my $thisseed=$i+$rndseed;
1.101 albertel 759: my $subresult=&Apache::lonnet::ssi($request->uri,
760: ('grade_target' => 'analyze'),
1.219 www 761: ('rndseed' => $thisseed));
1.101 albertel 762: (my $garbage,$subresult)=split(/_HASH_REF__/,$subresult,2);
763: my %analyze=&Apache::lonnet::str2hash($subresult);
1.114 albertel 764: my @parts;
765: if (defined(@{ $analyze{'parts'} })) {
766: @parts=@{ $analyze{'parts'} };
767: }
1.101 albertel 768: foreach my $part (@parts) {
769: if (!exists($allparts{$part})) {$allparts{$part}=1;};
1.109 albertel 770: if ($analyze{$part.'.type'} eq 'numericalresponse' ||
771: $analyze{$part.'.type'} eq 'stringresponse' ||
772: $analyze{$part.'.type'} eq 'formularesponse' ) {
1.263 albertel 773: foreach my $name (keys(%{ $analyze{$part.'.answer'} })) {
774: my $i=0;
775: foreach my $answer_part (@{ $analyze{$part.'.answer'}{$name} }) {
776: push( @{ $overall{$part.'.answer'}[$i] },
777: $answer_part);
778: my $concatanswer= join("\0",@{ $answer_part });
779: if (($concatanswer eq '') || ($concatanswer=~/^\@/)) {
1.266 albertel 780: $answer_part = ['<span class="LC_error">'.&mt('Error').'</span>'];
1.263 albertel 781: }
782: $seedexample{join("\0",$part,$i,@{$answer_part})}=
783: $thisseed;
784: $i++;
785: }
1.219 www 786: }
1.275 albertel 787: if (!keys(%{ $analyze{$part.'.answer'} })) {
788: my $answer_part =
789: ['<span class="LC_error">'.&mt('Error').'</span>'];
790: $seedexample{join("\0",$part,0,@{$answer_part})}=
791: $thisseed;
792: push( @{ $overall{$part.'.answer'}[0] },
793: $answer_part);
794: }
1.101 albertel 795: }
796: }
797: }
1.114 albertel 798: &Apache::lonhtmlcommon::Update_PrgWin($request,\%prog_state,
1.146 albertel 799: &mt('Analyzing Results'));
1.313 bisitz 800: $request->print('<hr />'
1.308 bisitz 801: .'<h3>'
802: .&mt('List of possible answers')
803: .'</h3>'
804: );
1.134 albertel 805: foreach my $part (sort(keys(%allparts))) {
1.109 albertel 806: if (defined(@{ $overall{$part.'.answer'} })) {
1.263 albertel 807: for (my $i=0;$i<scalar(@{ $overall{$part.'.answer'} });$i++) {
808: my $num_cols=scalar(@{ $overall{$part.'.answer'}[$i][0] });
1.308 bisitz 809: $request->print(&Apache::loncommon::start_data_table()
810: .&Apache::loncommon::start_data_table_header_row()
811: .'<th colspan="'.($num_cols+1).'">'
812: .&mt('Part').' '.$part
813: );
1.263 albertel 814: if (scalar(@{ $overall{$part.'.answer'} }) > 1) {
1.308 bisitz 815: $request->print(' '.&mt('Answer [_1]',$i+1));
1.263 albertel 816: }
1.308 bisitz 817: $request->print('</th>'
818: .&Apache::loncommon::end_data_table_header_row()
819: );
1.263 albertel 820: my %frequency;
821: foreach my $answer (sort {$a->[0] <=> $b->[0]} (@{ $overall{$part.'.answer'}[$i] })) {
822: $frequency{join("\0",@{ $answer })}++;
823: }
1.308 bisitz 824: $request->print(&Apache::loncommon::start_data_table_header_row()
825: .'<th colspan="'.($num_cols).'">'.&mt('Answer').'</th>'
826: .'<th>'.&mt('Frequency').'<br />'
827: .'('.&mt('click for example').')</th>'
828: .&Apache::loncommon::end_data_table_header_row()
829: );
1.263 albertel 830: foreach my $answer (sort {(split("\0",$a))[0] <=> (split("\0",$b))[0]} (keys(%frequency))) {
1.308 bisitz 831: $request->print(&Apache::loncommon::start_data_table_row()
832: .'<td>'
833: .join('</td><td>',split("\0",$answer))
834: .'</td>'
835: .'<td>'
836: .'<a href="'.$request->uri.'?rndseed='.$seedexample{join("\0",$part,$i,$answer)}.'">'.$frequency{$answer}.'</a>'
837: .'</td>'
838: .&Apache::loncommon::end_data_table_row()
839: );
1.263 albertel 840: }
1.308 bisitz 841: $request->print(&Apache::loncommon::end_data_table());
1.109 albertel 842: }
843: } else {
1.307 bisitz 844: $request->print('<p class="LC_warning">'
845: .&mt('Response [_1] is not analyzable at this time.',$part)
846: .'</p>'
847: );
1.101 albertel 848: }
849: }
1.130 albertel 850: if (scalar(keys(%allparts)) == 0 ) {
1.307 bisitz 851: $request->print('<p class="LC_warning">'
852: .&mt('Found no analyzable responses in this problem.'
853: .' Currently only Numerical, Formula and String response styles are supported.')
854: .'</p>'
855: );
1.130 albertel 856: }
1.114 albertel 857: &Apache::lonhtmlcommon::Close_PrgWin($request,\%prog_state);
1.109 albertel 858: &analyze_footer($request);
1.101 albertel 859: &Apache::lonhomework::showhash(%overall);
860: return $result;
1.74 albertel 861: }
862:
1.277 albertel 863: {
864: my $show_problem_status;
865: sub reset_show_problem_status {
866: undef($show_problem_status);
867: }
868:
869: sub set_show_problem_status {
870: my ($new_status) = @_;
871: $show_problem_status = lc($new_status);
872: }
873:
874: sub hide_problem_status {
875: return ($show_problem_status eq 'no'
876: || $show_problem_status eq 'no_feedback_ever');
877: }
878:
879: sub show_problem_status {
880: return ($show_problem_status eq 'yes'
1.285 albertel 881: || $show_problem_status eq 'answer'
1.277 albertel 882: || $show_problem_status eq '');
883: }
884:
885: sub show_some_problem_status {
886: return ($show_problem_status eq 'no');
887: }
888:
889: sub show_no_problem_status {
890: return ($show_problem_status eq 'no_feedback_ever');
891: }
1.285 albertel 892:
893: sub show_answer_problem_status {
894: return ($show_problem_status eq 'answer');
895: }
1.277 albertel 896: }
897:
1.64 albertel 898: sub editxmlmode {
1.145 albertel 899: my ($request,$file) = @_;
900: my $result;
901: my $problem=&Apache::lonnet::getfile($file);
902: if ($problem eq -1) {
1.305 bisitz 903: &Apache::lonxml::error(
904: '<b> '
905: .&mt('Unable to find [_1]',
906: '<span class="LC_filename">'.$file.'</span>')
907: .'</b>');
908:
1.145 albertel 909: $problem='';
910: }
1.204 albertel 911: if (defined($env{'form.editxmltext'}) || defined($env{'form.Undo'})) {
1.145 albertel 912: my $error=&handle_save_or_undo($request,\$problem,
1.204 albertel 913: \$env{'form.editxmltext'});
1.145 albertel 914: if (!$error) { $problem=&Apache::lonnet::getfile($file); }
915: }
1.204 albertel 916: &Apache::lonhomework::showhashsubset(\%env,'^form');
1.289 raeburn 917: if ( $env{'form.submitbutton'} eq &mt('Save and View') ) {
1.204 albertel 918: &Apache::lonhomework::showhashsubset(\%env,'^form');
1.289 raeburn 919: $env{'form.problemmode'}='view';
1.145 albertel 920: &renderpage($request,$file);
921: } else {
922: my ($rows,$cols) = &Apache::edit::textarea_sizes(\$problem);
923: if ($cols > 80) { $cols = 80; }
924: if ($cols < 70) { $cols = 70; }
925: if ($rows < 20) { $rows = 20; }
1.269 albertel 926: my $js =
927: &Apache::edit::js_change_detection().
1.289 raeburn 928: &Apache::loncommon::resize_textarea_js().
1.296 raeburn 929: &Apache::structuretags::setmode_javascript().
1.298 foxr 930: &Apache::lonhtmlcommon::dragmath_js("EditMathPopup");
1.270 albertel 931: my $only_body = ($env{'environment.remote'} eq 'off')? 0 : 1;
1.296 raeburn 932: my $dragmath_button =
933: &Apache::lonhtmlcommon::dragmath_button("LC_editxmltext",1);
1.312 bisitz 934:
935: # Breadcrumbs
936: my $brcrum = [{'href' => &Apache::loncommon::authorspace(),
937: 'text' => 'Construction Space'},
938: {'href' => '',
939: 'text' => 'Problem Editing'}];
940:
1.238 albertel 941: my $start_page =
1.269 albertel 942: &Apache::loncommon::start_page(&mt("EditXML [_1]",$file),$js,
943: {'no_auto_mt_title' => 1,
1.270 albertel 944: 'only_body' => $only_body,
1.269 albertel 945: 'add_entries' => {
946: 'onresize' => q[resize_textarea('LC_editxmltext','LC_aftertextarea')],
947: 'onload' => q[resize_textarea('LC_editxmltext','LC_aftertextarea')],
1.312 bisitz 948: },
949: 'bread_crumbs' => $brcrum,
950: });
1.311 bisitz 951:
952: $result=$start_page
953: .&Apache::loncommon::head_subbox(
954: &Apache::loncommon::CSTR_pageheader());
955: $result.=&renderpage($request,$file,['no_output_web'],1).
1.310 bisitz 956: '<form '.&Apache::edit::form_change_detection().' name="lonhomework" method="post" action="'.
1.204 albertel 957: &HTML::Entities::encode($env{'request.uri'},'<>&"').'">'.
1.179 albertel 958: &Apache::structuretags::remember_problem_state().'
1.278 albertel 959: <div class="LC_edit_problem_editxml_header">
1.280 albertel 960: <table class="LC_edit_problem_header_title"><tr><td>
1.317 bisitz 961: <h2>'.&mt('Problem Editing').' '.&Apache::loncommon::help_open_topic('Problem_Editor_XML_Index').'</h2>
1.280 albertel 962: </td><td align="right">
1.301 jms 963: '.&Apache::loncommon::helpLatexCheatsheet('Problem_LON-CAPA_Functions','Script Functions').'
1.280 albertel 964: </td></tr>
965: </table>
966: <div class="LC_edit_problem_discards">
1.289 raeburn 967: <input type="hidden" name="problemmode" value="editxml" />
1.294 foxr 968:
1.289 raeburn 969: <input type="button" name="submitmode" accesskey="d" value="'.&mt('Discard Edits and View').'" '.
970: 'onclick="javascript:setmode(this.form,'."'discard'".')" />
971: <input type="button" '.&Apache::edit::submit_ask_anyway('setmode(this.form,'."'edit'".')').'name="submitmode" accesskey="e" value="'.&mt('Edit').'" />
1.280 albertel 972: <input type="submit" name="Undo" accesskey="u" value="'.&mt('undo').'" />
1.296 raeburn 973: '.$dragmath_button.'
1.280 albertel 974: </div>
975: <div class="LC_edit_problem_saves">
1.289 raeburn 976: <input type="submit" name="submitbutton" accesskey="s" value="'.&mt('Save').'" />
1.296 raeburn 977: <input type="submit" name="submitbutton" accesskey="v" value="'.&mt('Save and View').'" />
1.280 albertel 978: </div>
1.316 bisitz 979: <hr style="clear:both;" />
1.281 albertel 980: '.&Apache::lonxml::message_location().'
1.278 albertel 981: </div>
1.280 albertel 982: ' . '
1.269 albertel 983: <textarea '.&Apache::edit::element_change_detection().
984: ' rows="'.$rows.'" cols="'.$cols.'" style="width:100%" '.
985: ' name="editxmltext" id="LC_editxmltext">'.
986: &HTML::Entities::encode($problem,'<>&"').'</textarea>
987: <div id="LC_aftertextarea">
988: </div>
1.238 albertel 989: </form>'.&Apache::loncommon::end_page();
1.171 albertel 990: &Apache::lonxml::add_messages(\$result);
1.145 albertel 991: $request->print($result);
992: }
993: return '';
1.47 albertel 994: }
1.189 albertel 995:
1.301 jms 996: #
997: # Render the page in whatever target desired.
998: #
1.41 albertel 999: sub renderpage {
1.213 albertel 1000: my ($request,$file,$targets,$return_string) = @_;
1.52 albertel 1001:
1.211 albertel 1002: my @targets = @{$targets || [&get_target()]};
1.204 albertel 1003: &Apache::lonhomework::showhashsubset(\%env,'form.');
1.145 albertel 1004: &Apache::lonxml::debug("Running targets ".join(':',@targets));
1.268 albertel 1005:
1.171 albertel 1006: my $overall_result;
1.145 albertel 1007: foreach my $target (@targets) {
1.183 albertel 1008: # FIXME need to do something intelligent when a problem goes
1009: # from viewable to not viewable due to map conditions
1010: #&setuppermissions();
1011: #if ( $Apache::lonhomework::browse ne '2'
1012: # && $Apache::lonhomework::browse ne 'F' ) {
1013: # $request->print(" You most likely shouldn't see me.");
1014: #}
1.145 albertel 1015: #my $t0 = [&gettimeofday()];
1.211 albertel 1016: my $output=1;
1017: if ($target eq 'no_output_web') {
1018: $target = 'web'; $output=0;
1019: }
1.145 albertel 1020: my $problem=&Apache::lonnet::getfile($file);
1.222 albertel 1021: my $result;
1.145 albertel 1022: if ($problem eq -1) {
1.260 albertel 1023: $problem='';
1.222 albertel 1024: my $filename=(split('/',$file))[-1];
1.260 albertel 1025: my $error =
1026: "<b> ".&mt('Unable to find [_1]',
1.305 bisitz 1027: '<span class="LC_filename">'.$filename.'</span>')
1.260 albertel 1028: ."</b>";
1029: $result.=
1030: &Apache::loncommon::simple_error_page($request,'Not available',
1031: $error);
1032: return;
1.145 albertel 1033: }
1.52 albertel 1034:
1.145 albertel 1035: my %mystyle;
1036: if ($target eq 'analyze') { %Apache::lonhomework::analyze=(); }
1037: if ($target eq 'answer') { &showhash(%Apache::lonhomework::history); }
1.204 albertel 1038: if ($target eq 'web') {&Apache::lonhomework::showhashsubset(\%env,'^form');}
1.145 albertel 1039:
1040: &Apache::lonxml::debug("Should be parsing now");
1.222 albertel 1041: $result .= &Apache::lonxml::xmlparse($request, $target, $problem,
1042: &setup_vars($target),%mystyle);
1.273 albertel 1043: &finished_parsing();
1.214 albertel 1044: if (!$output) { $result = ''; }
1.145 albertel 1045: #$request->print("Result follows:");
1046: if ($target eq 'modified') {
1047: &handle_save_or_undo($request,\$problem,\$result);
1048: } else {
1049: if ($target eq 'analyze') {
1050: $result=&Apache::lonnet::hashref2str(\%Apache::lonhomework::analyze);
1051: undef(%Apache::lonhomework::analyze);
1052: }
1053: #my $td=&tv_interval($t0);
1054: #if ( $Apache::lonxml::debug) {
1055: #$result =~ s:</body>::;
1056: #$result.="<br />Spent $td seconds processing target $target\n</body>";
1057: #}
1.171 albertel 1058: # $request->print($result);
1059: $overall_result.=$result;
1060: # $request->rflush();
1.145 albertel 1061: }
1062: #$request->print(":Result ends");
1063: #my $td=&tv_interval($t0);
1.52 albertel 1064: }
1.213 albertel 1065: if (!$return_string) {
1066: &Apache::lonxml::add_messages(\$overall_result);
1067: $request->print($overall_result);
1068: $request->rflush();
1069: } else {
1070: return $overall_result;
1071: }
1.41 albertel 1072: }
1073:
1.273 albertel 1074: sub finished_parsing {
1075: undef($Apache::lonhomework::parsing_a_problem);
1076: undef($Apache::lonhomework::parsing_a_task);
1077: }
1078:
1.42 albertel 1079: sub get_template_list {
1.282 albertel 1080: my ($extension) = @_;
1.145 albertel 1081: my $result;
1082: my @allnames;
1083: &Apache::lonxml::debug("Looking for :$extension:");
1.282 albertel 1084: my $glob_extension = $extension;
1085: if ($extension eq 'survey' || $extension eq 'exam') {
1086: $glob_extension = 'problem';
1087: }
1088: my @files = glob($Apache::lonnet::perlvar{'lonIncludes'}.
1089: '/templates/*.'.$glob_extension);
1.292 www 1090: @files = map {[$_,&mt(&Apache::lonnet::metadata($_, 'title')),
1091: (&Apache::lonnet::metadata($_, 'category')?&mt(&Apache::lonnet::metadata($_, 'category')):&mt('Miscellaneous')),
1092: &mt(&Apache::lonnet::metadata($_, 'help'))]} (@files);
1093: @files = sort {$a->[2].$a->[1] cmp $b->[2].$b->[1]} (@files);
1.287 raeburn 1094: my ($midpoint,$seconddiv,$numfiles);
1095: $numfiles = 0;
1096: foreach my $file (@files) {
1097: next if ($file->[1] !~ /\S/);
1098: $numfiles ++;
1099: }
1100: if ($numfiles > 0) {
1101: $result = '<div class="LC_left_float">';
1102: $midpoint = int($numfiles/2);
1103: if ($numfiles%2) {
1104: $midpoint ++;
1105: }
1106: }
1107: my $count = 0;
1.292 www 1108: my $currentcategory='';
1.314 bisitz 1109: my $first = 1;
1.282 albertel 1110: foreach my $file (@files) {
1111: next if ($file->[1] !~ /\S/);
1.292 www 1112: if ($file->[2] ne $currentcategory) {
1113: $currentcategory=$file->[2];
1114: if ((!$seconddiv) && ($count >= $midpoint)) {
1.314 bisitz 1115: $result .= '</div></div>'."\n".'<div class="LC_left_float">'."\n";
1.292 www 1116: $seconddiv = 1;
1.314 bisitz 1117: } elsif (!$first) {
1118: $result.='</div>'."\n";
1119: } else {
1120: $first = 0;
1.292 www 1121: }
1.314 bisitz 1122: $result.= '<div class="LC_Box">'."\n"
1123: .'<h3 class="LC_hcell">'.$currentcategory.'</h3>'."\n";
1.293 www 1124: $count++;
1.292 www 1125: }
1.282 albertel 1126: $result .=
1127: '<label><input type="radio" name="template" value="'.$file->[0].'" />'.
1.292 www 1128: $file->[1].'</label>';
1129: if ($file->[3]) {
1130: $result.=&Apache::loncommon::help_open_topic($file->[3]);
1131: }
1132: my $filename=$file->[0];
1133: $filename=~s/^\/home\/httpd\/html//;
1.314 bisitz 1134: $result.=' <span class="LC_fontsize_small">'
1.315 droeschl 1135: .'<a href="'.$filename.'?inhibitmenu=yes" target="sample">'.&mt('Example').'</a>'
1.314 bisitz 1136: .'</span><br />'."\n";
1.287 raeburn 1137: $count ++;
1138: }
1139: if ($numfiles > 0) {
1.314 bisitz 1140: $result .= '</div></div>'."\n".'<div class="LC_clear_float_footer"></div>'."\n";
1.42 albertel 1141: }
1.145 albertel 1142: return $result;
1.42 albertel 1143: }
1144:
1145: sub newproblem {
1.65 matthew 1146: my ($request) = @_;
1.282 albertel 1147:
1148: if ($env{'form.template'}) {
1149: my $file = $env{'form.template'};
1.65 matthew 1150: my $dest = &Apache::lonnet::filelocation("",$request->uri);
1.282 albertel 1151: &File::Copy::copy($file,$dest);
1.65 matthew 1152: &renderpage($request,$dest);
1.282 albertel 1153: return;
1154: }
1155:
1156: my ($extension) = ($request->uri =~ m/\.(\w+)$/);
1157: &Apache::lonxml::debug("Looking for :$extension:");
1158: my $templatelist=&get_template_list($extension);
1159: if ($env{'form.newfile'} && !$templatelist) {
1160: # no templates found
1.131 albertel 1161: my $templatefilename =
1.258 albertel 1162: $request->dir_config('lonIncludes').'/templates/blank.'.$extension;
1.131 albertel 1163: &Apache::lonxml::debug("$templatefilename");
1164: my $dest = &Apache::lonnet::filelocation("",$request->uri);
1.282 albertel 1165: &File::Copy::copy($templatefilename,$dest);
1.131 albertel 1166: &renderpage($request,$dest);
1.85 albertel 1167: } else {
1.176 albertel 1168: my $url=&HTML::Entities::encode($request->uri,'<>&"');
1169: my $shownurl=$url;
1.157 albertel 1170: $shownurl=~s-^/~-/priv/-;
1.65 matthew 1171: my $dest = &Apache::lonnet::filelocation("",$request->uri);
1.128 albertel 1172: my $errormsg;
1.85 albertel 1173: my $instructions;
1.312 bisitz 1174: my $brcrum = [{'href' => &Apache::loncommon::authorspace(),
1175: 'text' => 'Construction Space'},
1176: {'href' => '',
1177: 'text' => "Create New $extension"}];
1.240 albertel 1178: my $start_page =
1.312 bisitz 1179: &Apache::loncommon::start_page("Create New $extension",
1180: undef,
1181: {'bread_crumbs' => $brcrum,});
1.311 bisitz 1182: $request->print(
1183: $start_page
1184: .&Apache::loncommon::head_subbox(
1185: &Apache::loncommon::CSTR_pageheader())
1186: .'<h1>'.&mt("Creating a new $extension resource.")."</h1>
1.128 albertel 1187: $errormsg
1.258 albertel 1188: ".&mt("The requested file [_1] currently does not exist.",
1.314 bisitz 1189: '<span class="LC_filename">'.$shownurl.'</span>').'
1190: <p class="LC_info">
1191: '.&mt("To create a new $extension, select a template from the".
1192: " list below. Then click on the \"Create $extension\" button.").'
1193: </p><div><form action="'.$url.'" method="post">');
1.258 albertel 1194:
1.85 albertel 1195: if (defined($templatelist)) {
1.282 albertel 1196: $request->print($templatelist);
1.85 albertel 1197: }
1.282 albertel 1198: $request->print('<br /><input type="submit" name="newfile" value="'.
1199: &mt("Create $extension").'" />');
1.314 bisitz 1200: $request->print('</form></div>'.&Apache::loncommon::end_page());
1.65 matthew 1201: }
1.282 albertel 1202: return;
1.42 albertel 1203: }
1204:
1.268 albertel 1205: sub update_construct_style {
1206: if ($env{'request.state'} eq "construct"
1.289 raeburn 1207: && $env{'form.problemmode'} eq 'view'
1.268 albertel 1208: && defined($env{'form.submitted'})
1209: && !defined($env{'form.resetdata'})
1210: && !defined($env{'form.newrandomization'})) {
1211: if ((!$env{'form.style_file'} && $env{'construct.style'})
1212: ||$env{'form.clear_style_file'}) {
1.303 raeburn 1213: &Apache::lonnet::delenv('construct.style');
1.268 albertel 1214: } elsif ($env{'form.style_file'}
1215: && $env{'construct.style'} ne $env{'form.style_file'}) {
1.291 raeburn 1216: &Apache::lonnet::appenv({'construct.style' =>
1217: $env{'form.style_file'}});
1.268 albertel 1218: }
1219: }
1220: }
1221:
1222:
1.41 albertel 1223: sub handler {
1.145 albertel 1224: #my $t0 = [&gettimeofday()];
1225: my $request=$_[0];
1.223 albertel 1226: $Apache::lonxml::request=$request;
1.204 albertel 1227: $Apache::lonxml::debug=$env{'user.debug'};
1228: $env{'request.uri'}=$request->uri;
1.180 albertel 1229: &setuppermissions();
1.193 albertel 1230:
1.145 albertel 1231: my $file=&Apache::lonnet::filelocation("",$request->uri);
1232:
1233: #check if we know where we are
1.204 albertel 1234: if ($env{'request.course.fn'} && !&Apache::lonnet::symbread()) {
1.145 albertel 1235: # if we are browsing we might not be able to know where we are
1.173 albertel 1236: if ($Apache::lonhomework::browse ne 'F' &&
1.204 albertel 1237: $env{'request.state'} ne "construct") {
1.145 albertel 1238: #should know where we are, so ask
1.253 albertel 1239: &unset_permissions();
1240: $request->internal_redirect('/adm/ambiguous');
1241: return OK;
1.145 albertel 1242: }
1243: }
1.253 albertel 1244: if (&setupheader($request)) {
1245: &unset_permissions();
1246: return OK;
1247: }
1.244 albertel 1248: &Apache::lonxml::debug("Permissions:$Apache::lonhomework::browse:$Apache::lonhomework::viewgrades:$Apache::lonhomework::modifygrades:$Apache::lonhomework::queuegrade");
1.204 albertel 1249: &Apache::lonxml::debug("Problem Mode ".$env{'form.problemmode'});
1.261 albertel 1250: my ($symb) = &Apache::lonnet::whichuser();
1.145 albertel 1251: &Apache::lonxml::debug('symb is '.$symb);
1.204 albertel 1252: if ($env{'request.state'} eq "construct") {
1.145 albertel 1253: if ( -e $file ) {
1254: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
1255: ['problemmode']);
1.204 albertel 1256: if (!(defined $env{'form.problemmode'})) {
1.145 albertel 1257: #first visit to problem in construction space
1.289 raeburn 1258: $env{'form.problemmode'}= 'view';
1.145 albertel 1259: &renderpage($request,$file);
1.289 raeburn 1260: } elsif ($env{'form.problemmode'} eq 'editxml') {
1.145 albertel 1261: &editxmlmode($request,$file);
1.289 raeburn 1262: } elsif ($env{'form.problemmode'} eq 'calcanswers') {
1.145 albertel 1263: &analyze($request,$file);
1264: } else {
1.268 albertel 1265: &update_construct_style();
1.145 albertel 1266: &renderpage($request,$file);
1267: }
1268: } else {
1269: # requested file doesn't exist in contruction space
1270: &newproblem($request);
1271: }
1272: } else {
1273: # just render the page normally outside of construction space
1274: &Apache::lonxml::debug("not construct");
1.52 albertel 1275: &renderpage($request,$file);
1.41 albertel 1276: }
1.145 albertel 1277: #my $td=&tv_interval($t0);
1278: #&Apache::lonxml::debug("Spent $td seconds processing");
1279: # always turn off debug messages
1280: $Apache::lonxml::debug=0;
1.253 albertel 1281: &unset_permissions();
1.145 albertel 1282: return OK;
1.52 albertel 1283:
1.1 albertel 1284: }
1285:
1286: 1;
1287: __END__
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