Annotation of loncom/homework/lonhomework.pm, revision 1.323
1.63 albertel 1: # The LearningOnline Network with CAPA
1.52 albertel 2: # The LON-CAPA Homework handler
1.63 albertel 3: #
1.323 ! www 4: # $Id: lonhomework.pm,v 1.322 2010/11/01 16:19:49 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();
1.321 www 50: use Apache::functionplotresponse();
1.169 albertel 51: use Apache::drawimage();
1.26 www 52: use Apache::Constants qw(:common);
1.83 albertel 53: use Apache::loncommon();
1.146 albertel 54: use Apache::lonlocal;
1.179 albertel 55: use Time::HiRes qw( gettimeofday tv_interval );
1.282 albertel 56: use HTML::Entities();
57: use File::Copy();
1.188 foxr 58:
1.189 albertel 59: # FIXME - improve commenting
1.188 foxr 60:
1.43 albertel 61:
1.69 harris41 62: BEGIN {
1.145 albertel 63: &Apache::lonxml::register_insert();
1.43 albertel 64: }
65:
1.188 foxr 66:
1.276 foxr 67: =pod
68:
69: =item set_bubble_lines()
70:
71: Called at analysis time to set the bubble lines
72: hash for the problem.. This should be called in the
73: end_problemtype tag in analysis mode.
74:
75: We fetch the hash of part id counters from lonxml
76: and push them into analyze:{part_id.bubble_lines}.
77:
78: =cut
79:
80: sub set_bubble_lines {
81: my %bubble_counters = &Apache::lonxml::get_bubble_line_hash();
82:
83: foreach my $key (keys(%bubble_counters)) {
84: $Apache::lonhomework::analyze{"$key.bubble_lines"} =
85: $bubble_counters{"$key"};
86: }
87: }
88:
1.301 jms 89: #
90: # Decides what targets to render for.
91: # Implicit inputs:
92: # Various session environment variables:
93: # request.state - published - is a /res/ resource
94: # uploaded - is a /uploaded/ resource
95: # contruct - is a /priv/ resource
96: # form.grade_target - a form parameter requesting a specific target
1.5 albertel 97: sub get_target {
1.204 albertel 98: &Apache::lonxml::debug("request.state = $env{'request.state'}");
99: if( defined($env{'form.grade_target'})) {
100: &Apache::lonxml::debug("form.grade_target= $env{'form.grade_target'}");
1.188 foxr 101: } else {
1.189 albertel 102: &Apache::lonxml::debug("form.grade_target <undefined>");
1.188 foxr 103: }
1.204 albertel 104: if (($env{'request.state'} eq "published") ||
105: ($env{'request.state'} eq "uploaded")) {
106: if ( defined($env{'form.grade_target'} )
107: && ($env{'form.grade_target'} eq 'tex')) {
108: return ($env{'form.grade_target'});
109: } elsif ( defined($env{'form.grade_target'} )
1.145 albertel 110: && ($Apache::lonhomework::viewgrades eq 'F' )) {
1.207 albertel 111: return ($env{'form.grade_target'});
1.244 albertel 112: } elsif ( $env{'form.grade_target'} eq 'webgrade'
113: && ($Apache::lonhomework::queuegrade eq 'F' )) {
114: return ($env{'form.grade_target'});
1.320 raeburn 115: } elsif ($env{'form.grade_target'} eq 'answer') {
116: if ($env{'form.answer_output_mode'} eq 'tex') {
117: return ($env{'form.grade_target'});
118: }
119: }
1.207 albertel 120: if ($env{'form.webgrade'} &&
1.244 albertel 121: ($Apache::lonhomework::modifygrades eq 'F'
122: || $Apache::lonhomework::queuegrade eq 'F' )) {
1.207 albertel 123: return ('grade','webgrade');
1.145 albertel 124: }
1.204 albertel 125: if ( defined($env{'form.submitted'}) &&
126: ( !defined($env{'form.newrandomization'}))) {
1.217 albertel 127: return ('grade', 'web');
1.145 albertel 128: } else {
1.217 albertel 129: return ('web');
1.145 albertel 130: }
1.204 albertel 131: } elsif ($env{'request.state'} eq "construct") {
1.323 ! www 132: #
! 133: # We are in construction space, editing and testing problems
! 134: #
1.204 albertel 135: if ( defined($env{'form.grade_target'}) ) {
136: return ($env{'form.grade_target'});
1.145 albertel 137: }
1.204 albertel 138: if ( defined($env{'form.preview'})) {
139: if ( defined($env{'form.submitted'})) {
1.323 ! www 140: #
! 141: # We are doing a problem preview
! 142: #
1.145 albertel 143: return ('grade', 'web');
144: } else {
145: return ('web');
146: }
147: } else {
1.267 albertel 148: if ($env{'form.problemstate'} eq 'WEB_GRADE') {
149: return ('grade','webgrade','answer');
1.323 ! www 150: } elsif ($env{'form.problemmode'} eq 'saveview') {
! 151: return ('modified','web','answer');
! 152: } elsif ($env{'form.problemmode'} eq 'discard') {
! 153: return ('web','answer');
! 154: } elsif (($env{'form.problemmode'} eq 'saveedit') ||
! 155: ($env{'form.problemmode'} eq 'undo')) {
! 156: return ('modified','no_output_web','edit');
! 157: } elsif ($env{'form.problemmode'} eq 'edit') {
! 158: return ('no_output_web','edit');
1.145 albertel 159: } else {
160: return ('web');
161: }
1.323 ! www 162: }
! 163: #
! 164: # End of Construction Space
! 165: #
1.15 albertel 166: }
1.323 ! www 167: #
! 168: # Huh? We are nowhere, so do nothing.
! 169: #
1.145 albertel 170: return ();
1.5 albertel 171: }
172:
1.3 albertel 173: sub setup_vars {
1.145 albertel 174: my ($target) = @_;
175: return ';'
1.11 albertel 176: # return ';$external::target='.$target.';';
1.2 albertel 177: }
178:
1.200 albertel 179: sub proctor_checked_in {
1.226 albertel 180: my ($slot_name,$slot,$type)=@_;
181: my @possible_proctors=split(",",$slot->{'proctor'});
182:
1.248 albertel 183: return 1 if (!@possible_proctors);
184:
1.226 albertel 185: my $key;
186: if ($type eq 'Task') {
1.230 albertel 187: my $version=$Apache::lonhomework::history{'resource.0.version'};
188: $key ="resource.$version.0.checkedin";
1.226 albertel 189: } elsif ($type eq 'problem') {
190: $key ='resource.0.checkedin';
191: }
1.249 albertel 192: # backward compatability, used to be username@domain,
193: # now is username:domain
194: my $who = $Apache::lonhomework::history{$key};
195: if ($who !~ /:/) {
196: $who =~ tr/@/:/;
197: }
1.226 albertel 198: foreach my $possible (@possible_proctors) {
1.249 albertel 199: if ($who eq $possible
1.226 albertel 200: && $Apache::lonhomework::history{$key.'.slot'} eq $slot_name) {
1.202 albertel 201: return 1;
202: }
203: }
1.226 albertel 204:
1.200 albertel 205: return 0;
206: }
207:
1.226 albertel 208: sub check_slot_access {
209: my ($id,$type)=@_;
210:
1.207 albertel 211: # does it pass normal muster
1.226 albertel 212: my ($status,$datemsg)=&check_access($id);
213:
1.252 albertel 214: my $useslots = &Apache::lonnet::EXT("resource.0.useslots");
1.251 albertel 215: if ($useslots ne 'resource' && $useslots ne 'map'
216: && $useslots ne 'map_map') {
1.226 albertel 217: return ($status,$datemsg);
218: }
219:
1.200 albertel 220: if ($status eq 'SHOW_ANSWER' ||
221: $status eq 'CLOSED' ||
222: $status eq 'INVALID_ACCESS' ||
223: $status eq 'UNAVAILABLE') {
224: return ($status,$datemsg);
225: }
1.204 albertel 226: if ($env{'request.state'} eq "construct") {
1.203 albertel 227: return ($status,$datemsg);
228: }
1.226 albertel 229:
230: if ($type eq 'Task') {
231: my $version=$Apache::lonhomework::history{'resource.version'};
1.230 albertel 232: if ($Apache::lonhomework::history{"resource.$version.0.checkedin"} &&
233: $Apache::lonhomework::history{"resource.$version.0.status"} eq 'pass') {
1.226 albertel 234: return ('SHOW_ANSWER');
235: }
1.207 albertel 236: }
1.226 albertel 237:
1.288 raeburn 238: my $availablestudent = &Apache::lonnet::EXT("resource.0.availablestudent");
239: my $available = &Apache::lonnet::EXT("resource.0.available");
240: my @slots= (split(':',$availablestudent),split(':',$available));
1.210 albertel 241:
1.200 albertel 242: # if (!@slots) {
243: # return ($status,$datemsg);
244: # }
245: my $slotstatus='NOT_IN_A_SLOT';
1.206 albertel 246: my ($returned_slot,$slot_name);
1.210 albertel 247: foreach my $slot (@slots) {
1.241 albertel 248: $slot =~ s/(^\s*|\s*$)//g;
1.201 albertel 249: &Apache::lonxml::debug("getting $slot");
1.200 albertel 250: my %slot=&Apache::lonnet::get_slot($slot);
1.201 albertel 251: &Apache::lonhomework::showhash(%slot);
1.200 albertel 252: if ($slot{'starttime'} < time &&
253: $slot{'endtime'} > time &&
1.297 raeburn 254: &Apache::loncommon::check_ip_acc($slot{'ip'})) {
1.202 albertel 255: &Apache::lonxml::debug("$slot is good");
256: $slotstatus='NEEDS_CHECKIN';
257: $returned_slot=\%slot;
1.206 albertel 258: $slot_name=$slot;
1.200 albertel 259: last;
260: }
261: }
1.202 albertel 262: if ($slotstatus eq 'NEEDS_CHECKIN' &&
1.226 albertel 263: &proctor_checked_in($slot_name,$returned_slot,$type)) {
1.322 raeburn 264: &Apache::lonxml::debug("proctor checked in");
265: $slotstatus=$status;
1.200 albertel 266: }
1.226 albertel 267:
1.235 albertel 268: my ($is_correct,$got_grade,$checkedin);
1.226 albertel 269: if ($type eq 'Task') {
1.230 albertel 270: my $version=$Apache::lonhomework::history{'resource.0.version'};
1.231 albertel 271: $got_grade =
272: ($Apache::lonhomework::history{"resource.$version.0.status"}
273: =~ /^(?:pass|fail)$/);
1.235 albertel 274: $is_correct =
275: ($Apache::lonhomework::history{"resource.$version.0.status"} eq 'pass'
276: || $Apache::lonhomework::history{"resource.0.solved"} =~ /^correct_/ );
1.226 albertel 277: $checkedin =
1.230 albertel 278: $Apache::lonhomework::history{"resource.$version.0.checkedin"};
1.226 albertel 279: } elsif ($type eq 'problem') {
1.252 albertel 280: $got_grade = 1;
281: $checkedin = $Apache::lonhomework::history{"resource.0.checkedin"};
282: $is_correct =
283: ($Apache::lonhomework::history{"resource.0.solved"} =~/^correct_/);
1.226 albertel 284: }
285:
1.235 albertel 286: &Apache::lonxml::debug(" slot is $slotstatus checkedin ($checkedin) got_grade ($got_grade) is_correct ($is_correct)");
287:
1.243 albertel 288: # no slot is currently open, and has been checked in for this version
289: # but hasn't got a grade, therefore must be awaiting a grade
290: if (!defined($slot_name)
291: && $checkedin
1.236 albertel 292: && !$got_grade) {
293: return ('WAITING_FOR_GRADE');
294: }
295:
1.309 raeburn 296: # Previously used slot is no longer open, and has been checked in for this version.
297: # However, the problem is not closed, and potentially, another slot might be
298: # used to gain access to it to work on it, until the due date is reached, and the
299: # problem then becomes CLOSED. Therefore return the slotstatus -
300: # (which will be NOT_IN_SLOT).
1.252 albertel 301: if (!defined($slot_name)
302: && $checkedin
303: && $type eq 'problem') {
1.309 raeburn 304: return ($slotstatus);
1.252 albertel 305: }
306:
1.226 albertel 307: if ($slotstatus eq 'NOT_IN_A_SLOT'
308: && $checkedin ) {
309:
1.231 albertel 310: if ($got_grade) {
1.209 albertel 311: return ('SHOW_ANSWER');
312: } else {
313: return ('WAITING_FOR_GRADE');
314: }
1.226 albertel 315:
1.207 albertel 316: }
1.255 albertel 317:
1.235 albertel 318: if ( $is_correct) {
1.255 albertel 319: if ($type eq 'problem') {
320: return ($status);
321: }
1.235 albertel 322: return ('SHOW_ANSWER');
323: }
1.255 albertel 324:
1.225 albertel 325: if ( $status eq 'CANNOT_ANSWER' &&
326: ($slotstatus ne 'NEEDS_CHECKIN' && $slotstatus ne 'NOT_IN_A_SLOT')) {
327: return ($status,$datemsg);
328: }
329:
1.206 albertel 330: return ($slotstatus,$datemsg,$slot_name,$returned_slot);
1.198 albertel 331: }
1.200 albertel 332:
1.301 jms 333: # JB, 9/24/2002: Any changes in this function may require a change
334: # in lonnavmaps::resource::getDateStatus.
1.53 www 335: sub check_access {
1.145 albertel 336: my ($id) = @_;
337: my $date ='';
338: my $status;
339: my $datemsg = '';
340: my $lastdate = '';
341: my $type;
342: my $passed;
343:
1.204 albertel 344: if ($env{'request.state'} eq "construct") {
345: if ($env{'form.problemstate'}) {
346: if ($env{'form.problemstate'} =~ /^CANNOT_ANSWER/) {
1.277 albertel 347: if ( ! ($env{'form.problemstate'} eq 'CANNOT_ANSWER_correct'
348: && &hide_problem_status())) {
1.168 albertel 349: return ('CANNOT_ANSWER',
1.174 www 350: &mt('is in this state due to author settings.'));
1.167 albertel 351: }
1.165 albertel 352: } else {
1.204 albertel 353: return ($env{'form.problemstate'},
1.174 www 354: &mt('is in this state due to author settings.'));
1.165 albertel 355: }
356: }
1.145 albertel 357: &Apache::lonxml::debug("in construction ignoring dates");
358: $status='CAN_ANSWER';
1.146 albertel 359: $datemsg=&mt('is in under construction');
1.163 albertel 360: # return ($status,$datemsg);
1.145 albertel 361: }
362:
363: &Apache::lonxml::debug("checking for part :$id:");
364: &Apache::lonxml::debug("time:".time);
1.152 albertel 365:
1.261 albertel 366: my ($symb)=&Apache::lonnet::whichuser();
1.212 albertel 367: &Apache::lonxml::debug("symb:".$symb);
368: #if ($env{'request.state'} ne "construct" && $symb ne '') {
1.204 albertel 369: if ($env{'request.state'} ne "construct") {
1.288 raeburn 370: my $idacc = &Apache::lonnet::EXT("resource.$id.acc");
1.297 raeburn 371: my $allowed=&Apache::loncommon::check_ip_acc($idacc);
1.163 albertel 372: if (!$allowed && ($Apache::lonhomework::browse ne 'F')) {
373: $status='INVALID_ACCESS';
374: $date=&mt("can not be accessed from your location.");
1.145 albertel 375: return($status,$date);
376: }
1.163 albertel 377:
1.226 albertel 378: foreach my $temp ("opendate","duedate","answerdate") {
1.163 albertel 379: $lastdate = $date;
1.247 albertel 380: if ($temp eq 'duedate') {
381: $date = &due_date($id);
382: } else {
383: $date = &Apache::lonnet::EXT("resource.$id.$temp");
384: }
385:
1.163 albertel 386: my $thistype = &Apache::lonnet::EXT("resource.$id.$temp.type");
387: if ($thistype =~ /^(con_lost|no_such_host)/ ||
388: $date =~ /^(con_lost|no_such_host)/) {
389: $status='UNAVAILABLE';
390: $date=&mt("may open later.");
391: return($status,$date);
392: }
393: if ($thistype eq 'date_interval') {
394: if ($temp eq 'opendate') {
395: $date=&Apache::lonnet::EXT("resource.$id.duedate")-$date;
396: }
397: if ($temp eq 'answerdate') {
398: $date=&Apache::lonnet::EXT("resource.$id.duedate")+$date;
399: }
1.145 albertel 400: }
1.163 albertel 401: &Apache::lonxml::debug("found :$date: for :$temp:");
402: if ($date eq '') {
403: $date = &mt("an unknown date"); $passed = 0;
404: } elsif ($date eq 'con_lost') {
405: $date = &mt("an indeterminate date"); $passed = 0;
406: } else {
407: if (time < $date) { $passed = 0; } else { $passed = 1; }
1.274 www 408: $date = &Apache::lonlocal::locallocaltime($date);
1.145 albertel 409: }
1.163 albertel 410: if (!$passed) { $type=$temp; last; }
1.145 albertel 411: }
1.163 albertel 412: &Apache::lonxml::debug("have :$type:$passed:");
413: if ($passed) {
414: $status='SHOW_ANSWER';
415: $datemsg=$date;
416: } elsif ($type eq 'opendate') {
417: $status='CLOSED';
418: $datemsg = &mt("will open on")." $date";
419: } elsif ($type eq 'duedate') {
420: $status='CAN_ANSWER';
421: $datemsg = &mt("is due at")." $date";
422: } elsif ($type eq 'answerdate') {
423: $status='CLOSED';
424: $datemsg = &mt("was due on")." $lastdate".&mt(", and answers will be available on")." $date";
1.145 albertel 425: }
426: }
1.212 albertel 427: if ($status eq 'CAN_ANSWER' ||
428: (($Apache::lonhomework::browse eq 'F') && ($status eq 'CLOSED'))) {
1.145 albertel 429: #check #tries, and if correct.
430: my $tries = $Apache::lonhomework::history{"resource.$id.tries"};
431: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
432: if ( $tries eq '' ) { $tries = '0'; }
1.164 albertel 433: if ( $maxtries eq '' &&
1.204 albertel 434: $env{'request.state'} ne 'construct') { $maxtries = '2'; }
1.164 albertel 435: if ($maxtries && $tries >= $maxtries) { $status = 'CANNOT_ANSWER'; }
1.145 albertel 436: # if (correct and show prob status) or excused then CANNOT_ANSWER
437: if(($Apache::lonhomework::history{"resource.$id.solved"}=~/^correct/
438: &&
1.277 albertel 439: &show_problem_status())
1.145 albertel 440: ||
441: $Apache::lonhomework::history{"resource.$id.solved"}=~/^excused/) {
442: $status = 'CANNOT_ANSWER';
443: }
1.285 albertel 444: if ($status eq 'CANNOT_ANSWER'
445: && &show_answer_problem_status()) {
446: $status = 'SHOW_ANSWER';
447: }
1.121 albertel 448: }
1.181 albertel 449: if ($status eq 'CAN_ANSWER' || $status eq 'CANNOT_ANSWER') {
1.286 albertel 450: my @interval=&Apache::lonnet::EXT("resource.$id.interval");
451: &Apache::lonxml::debug("looking for interval @interval");
452: if ($interval[0]) {
453: my $first_access=&Apache::lonnet::get_first_access($interval[1]);
1.177 albertel 454: &Apache::lonxml::debug("looking for accesstime $first_access");
455: if (!$first_access) {
456: $status='NOT_YET_VIEWED';
1.247 albertel 457: my $due_date = &due_date($id);
1.256 albertel 458: my $seconds_left = $due_date - time;
1.286 albertel 459: if ($seconds_left > $interval[0] || $due_date eq '') {
460: $seconds_left = $interval[0];
1.256 albertel 461: }
462: $datemsg=&seconds_to_human_length($seconds_left);
1.177 albertel 463: }
464: }
465: }
1.247 albertel 466:
1.133 albertel 467: #if (($status ne 'CLOSED') && ($Apache::lonhomework::type eq 'exam') &&
468: # (!$Apache::lonhomework::history{"resource.0.outtoken"})) {
469: # return ('UNCHECKEDOUT','needs to be checked out');
470: #}
1.54 www 471:
472:
1.145 albertel 473: &Apache::lonxml::debug("sending back :$status:$datemsg:");
474: if (($Apache::lonhomework::browse eq 'F') && ($status eq 'CLOSED')) {
475: &Apache::lonxml::debug("should be allowed to browse a resource when closed");
476: $status='CAN_ANSWER';
1.146 albertel 477: $datemsg=&mt('is closed but you are allowed to view it');
1.145 albertel 478: }
1.106 albertel 479:
1.145 albertel 480: return ($status,$datemsg);
1.20 albertel 481: }
1.301 jms 482: # this should work exactly like the copy in lonnavmaps.pm
1.246 albertel 483: sub due_date {
1.250 albertel 484: my ($part_id,$symb,$udom,$uname)=@_;
1.246 albertel 485: my $date;
1.286 albertel 486: my @interval= &Apache::lonnet::EXT("resource.$part_id.interval",$symb,
1.250 albertel 487: $udom,$uname);
1.286 albertel 488: &Apache::lonxml::debug("looking for interval $part_id $symb @interval");
1.250 albertel 489: my $due_date= &Apache::lonnet::EXT("resource.$part_id.duedate",$symb,
490: $udom,$uname);
1.247 albertel 491: &Apache::lonxml::debug("looking for due_date $part_id $symb $due_date");
1.286 albertel 492: if ($interval[0] =~ /\d+/) {
493: my $first_access=&Apache::lonnet::get_first_access($interval[1],$symb);
494: &Apache::lonxml::debug("looking for first_access $first_access ($interval[1])");
1.247 albertel 495: if (defined($first_access)) {
1.286 albertel 496: my $interval = $first_access+$interval[0];
1.283 albertel 497: $date = (!$due_date || $interval < $due_date) ? $interval
498: : $due_date;
1.247 albertel 499: } else {
500: $date = $due_date;
501: }
502: } else {
503: $date = $due_date;
1.246 albertel 504: }
505: return $date
506: }
507:
1.192 albertel 508: sub seconds_to_human_length {
509: my ($length)=@_;
510:
511: my $seconds=$length%60; $length=int($length/60);
512: my $minutes=$length%60; $length=int($length/60);
513: my $hours=$length%24; $length=int($length/24);
514: my $days=$length;
515:
516: my $timestr;
517: if ($days > 0) { $timestr.=&mt('[quant,_1,day]',$days); }
518: if ($hours > 0) { $timestr.=($timestr?", ":"").
519: &mt('[quant,_1,hour]',$hours); }
520: if ($minutes > 0) { $timestr.=($timestr?", ":"").
521: &mt('[quant,_1,minute]',$minutes); }
522: if ($seconds > 0) { $timestr.=($timestr?", ":"").
523: &mt('[quant,_1,second]',$seconds); }
524: return $timestr;
525: }
526:
1.41 albertel 527: sub showhash {
1.145 albertel 528: my (%hash) = @_;
529: &showhashsubset(\%hash,'.');
530: return '';
1.79 albertel 531: }
532:
1.106 albertel 533: sub showarray {
534: my ($array)=@_;
535: my $string="(";
536: foreach my $elm (@{ $array }) {
1.193 albertel 537: if (ref($elm) eq 'ARRAY') {
538: $string.=&showarray($elm);
539: } elsif (ref($elm) eq 'HASH') {
540: $string.= "HASH --- \n<br />";
541: $string.= &showhashsubset($elm,'.');
1.106 albertel 542: } else {
543: $string.="$elm,"
544: }
545: }
546: chop($string);
547: $string.=")";
548: return $string;
549: }
550:
1.79 albertel 551: sub showhashsubset {
1.145 albertel 552: my ($hash,$keyre) = @_;
553: my $resultkey;
554: foreach $resultkey (sort keys %$hash) {
1.193 albertel 555: if ($resultkey !~ /$keyre/) { next; }
556: if (ref($$hash{$resultkey}) eq 'ARRAY' ) {
557: &Apache::lonxml::debug("$resultkey ---- ".
558: &showarray($$hash{$resultkey}));
559: } elsif (ref($$hash{$resultkey}) eq 'HASH' ) {
560: &Apache::lonxml::debug("$resultkey ---- $$hash{$resultkey}");
561: &showhashsubset($$hash{$resultkey},'.');
562: } else {
563: &Apache::lonxml::debug("$resultkey ---- $$hash{$resultkey}");
1.145 albertel 564: }
565: }
566: &Apache::lonxml::debug("\n<br />restored values^</br>\n");
567: return '';
1.41 albertel 568: }
569:
570: sub setuppermissions {
1.204 albertel 571: $Apache::lonhomework::browse= &Apache::lonnet::allowed('bre',$env{'request.filename'});
572: my $viewgrades = &Apache::lonnet::allowed('vgr',$env{'request.course.id'});
1.145 albertel 573: if (! $viewgrades &&
1.204 albertel 574: exists($env{'request.course.sec'}) &&
575: $env{'request.course.sec'} !~ /^\s*$/) {
576: $viewgrades = &Apache::lonnet::allowed('vgr',$env{'request.course.id'}.
577: '/'.$env{'request.course.sec'});
1.145 albertel 578: }
1.244 albertel 579: $Apache::lonhomework::viewgrades = $viewgrades;
580:
1.185 albertel 581: if ($Apache::lonhomework::browse eq 'F' &&
1.204 albertel 582: $env{'form.devalidatecourseresdata'} eq 'on') {
1.261 albertel 583: my (undef,$courseid) = &Apache::lonnet::whichuser();
1.204 albertel 584: &Apache::lonnet::devalidatecourseresdata($env{"course.$courseid.num"},
585: $env{"course.$courseid.domain"});
1.185 albertel 586: }
1.244 albertel 587:
1.205 albertel 588: my $modifygrades = &Apache::lonnet::allowed('mgr',$env{'request.course.id'});
589: if (! $modifygrades &&
590: exists($env{'request.course.sec'}) &&
591: $env{'request.course.sec'} !~ /^\s*$/) {
592: $modifygrades =
593: &Apache::lonnet::allowed('mgr',$env{'request.course.id'}.
594: '/'.$env{'request.course.sec'});
595: }
596: $Apache::lonhomework::modifygrades = $modifygrades;
1.244 albertel 597:
598: my $queuegrade = &Apache::lonnet::allowed('mqg',$env{'request.course.id'});
599: if (! $queuegrade &&
600: exists($env{'request.course.sec'}) &&
601: $env{'request.course.sec'} !~ /^\s*$/) {
602: $queuegrade =
603: &Apache::lonnet::allowed('qgr',$env{'request.course.id'}.
604: '/'.$env{'request.course.sec'});
605: }
606: $Apache::lonhomework::queuegrade = $queuegrade;
1.205 albertel 607: return '';
1.41 albertel 608: }
609:
1.253 albertel 610: sub unset_permissions {
611: undef($Apache::lonhomework::queuegrade);
612: undef($Apache::lonhomework::modifygrades);
613: undef($Apache::lonhomework::viewgrades);
614: undef($Apache::lonhomework::browse);
615: }
616:
1.41 albertel 617: sub setupheader {
1.120 albertel 618: my $request=$_[0];
1.197 albertel 619: &Apache::loncommon::content_type($request,'text/html');
1.120 albertel 620: if (!$Apache::lonxml::debug && ($ENV{'REQUEST_METHOD'} eq 'GET')) {
621: &Apache::loncommon::no_cache($request);
622: }
1.196 albertel 623: # $request->set_last_modified(&Apache::lonnet::metadata($request->uri,
624: # 'lastrevisiondate'));
1.120 albertel 625: $request->send_http_header;
626: return OK if $request->header_only;
627: return ''
1.41 albertel 628: }
1.35 albertel 629:
1.47 albertel 630: sub handle_save_or_undo {
1.145 albertel 631: my ($request,$problem,$result) = @_;
1.323 ! www 632:
1.145 albertel 633: my $file = &Apache::lonnet::filelocation("",$request->uri);
634: my $filebak =$file.".bak";
635: my $filetmp =$file.".tmp";
636: my $error=0;
1.323 ! www 637: if (($env{'form.problemmode'} eq 'undo') || ($env{'form.problemmode'} eq 'undoxml')) {
1.145 albertel 638: my $error=0;
1.284 albertel 639: if (!&File::Copy::copy($file,$filetmp)) { $error=1; }
640: if ((!$error) && (!&File::Copy::copy($filebak,$file))) { $error=1; }
641: if ((!$error) && (!&File::Copy::move($filetmp,$filebak))) { $error=1; }
1.145 albertel 642: if (!$error) {
1.266 albertel 643: &Apache::lonxml::info("<p><b>".
644: &mt("Undid changes, Switched [_1] and [_2]",
645: '<span class="LC_filename">'.$filebak.
646: '</span>',
647: '<span class="LC_filename">'.$file.
648: '</span>')."</b></p>");
1.145 albertel 649: } else {
1.266 albertel 650: &Apache::lonxml::info("<p><span class=\"LC_error\">".
651: &mt("Unable to undo, unable to switch [_1] and [_2]",
652: '<span class="LC_filename">'.
653: $filebak.'</span>',
654: '<span class="LC_filename">'.
655: $file.'</span>')."</span></p>");
1.145 albertel 656: $error=1;
657: }
1.52 albertel 658: } else {
1.262 banghart 659: &Apache::lonnet::correct_line_ends($result);
1.323 ! www 660:
1.145 albertel 661: my $fs=Apache::File->new(">$filebak");
662: if (defined($fs)) {
663: print $fs $$problem;
664: } else {
1.266 albertel 665: &Apache::lonxml::info("<span class=\"LC_error\">".
666: &mt("Unable to make backup [_1]",
667: '<span class="LC_filename">'.
668: $filebak.'</span>')."</span>");
1.145 albertel 669: $error=2;
670: }
671: my $fh=Apache::File->new(">$file");
672: if (defined($fh)) {
673: print $fh $$result;
674: } else {
1.266 albertel 675: &Apache::lonxml::info('<span class="LC_error">'.
676: &mt("Unable to write to [_1]",
677: '<span class="LC_filename">'.
678: $file.'</span>').
679: '</span>');
1.145 albertel 680: $error|=4;
681: }
1.52 albertel 682: }
1.145 albertel 683: return $error;
1.64 albertel 684: }
685:
1.101 albertel 686: sub analyze_header {
687: my ($request) = @_;
1.289 raeburn 688: my $js = &Apache::structuretags::setmode_javascript();
1.312 bisitz 689:
690: # Breadcrumbs
691: my $brcrum = [{'href' => &Apache::loncommon::authorspace(),
692: 'text' => 'Construction Space'},
693: {'href' => '',
694: 'text' => 'Problem Testing'},
695: {'href' => '',
696: 'text' => 'Analyzing a problem'}];
697:
1.238 albertel 698: my $result =
1.312 bisitz 699: &Apache::loncommon::start_page('Analyzing a problem',
700: $js,
701: {'bread_crumbs' => $brcrum,})
1.311 bisitz 702: .&Apache::loncommon::head_subbox(
703: &Apache::loncommon::CSTR_pageheader());
1.238 albertel 704: $result .=
705: &Apache::lonxml::message_location().'
1.310 bisitz 706: <form name="lonhomework" method="post" action="'.
1.204 albertel 707: &HTML::Entities::encode($env{'request.uri'},'<>&"').'">'.
1.289 raeburn 708: '<input type="hidden" name="problemmode" value="'.
709: $env{'form.problemmode'}.'" />'.
1.179 albertel 710: &Apache::structuretags::remember_problem_state().'
1.278 albertel 711: <div class="LC_edit_problem_analyze_header">
1.289 raeburn 712: <input type="button" name="submitmode" value="'.&mt("EditXML").'" '.
713: 'onclick="javascript:setmode(this.form,'."'editxml'".')" />
714: <input type="button" name="submitmode" value="'.&mt('Edit').'" '.
715: 'onclick="javascript:setmode(this.form,'."'edit'".')" />
1.313 bisitz 716: <hr />
1.289 raeburn 717: <input type="button" name="submitmode" value="'.&mt("View").'" '.
718: 'onclick="javascript:setmode(this.form,'."'view'".')" />
1.313 bisitz 719: <hr />
1.278 albertel 720: </div>
1.101 albertel 721: </form>';
1.171 albertel 722: &Apache::lonxml::add_messages(\$result);
1.101 albertel 723: $request->print($result);
724: $request->rflush();
725: }
726:
1.109 albertel 727: sub analyze_footer {
728: my ($request) = @_;
1.237 albertel 729: $request->print(&Apache::loncommon::end_page());
1.109 albertel 730: $request->rflush();
731: }
732:
1.74 albertel 733: sub analyze {
1.101 albertel 734: my ($request,$file) = @_;
735: &Apache::lonxml::debug("Analyze");
736: my $result;
737: my %overall;
1.219 www 738: my %seedexample;
1.101 albertel 739: my %allparts;
1.204 albertel 740: my $rndseed=$env{'form.rndseed'};
1.101 albertel 741: &analyze_header($request);
1.114 albertel 742: my %prog_state=
1.146 albertel 743: &Apache::lonhtmlcommon::Create_PrgWin($request,&mt('Analyze Progress'),
744: &mt('Getting Problem Variants'),
1.204 albertel 745: $env{'form.numtoanalyze'},
1.175 albertel 746: 'inline',undef);
1.204 albertel 747: for(my $i=1;$i<$env{'form.numtoanalyze'}+1;$i++) {
1.114 albertel 748: &Apache::lonhtmlcommon::Increment_PrgWin($request,\%prog_state,
1.146 albertel 749: &mt('last problem'));
1.182 albertel 750: if (&Apache::loncommon::connection_aborted($request)) { return; }
1.219 www 751: my $thisseed=$i+$rndseed;
1.101 albertel 752: my $subresult=&Apache::lonnet::ssi($request->uri,
753: ('grade_target' => 'analyze'),
1.219 www 754: ('rndseed' => $thisseed));
1.101 albertel 755: (my $garbage,$subresult)=split(/_HASH_REF__/,$subresult,2);
756: my %analyze=&Apache::lonnet::str2hash($subresult);
1.114 albertel 757: my @parts;
758: if (defined(@{ $analyze{'parts'} })) {
759: @parts=@{ $analyze{'parts'} };
760: }
1.101 albertel 761: foreach my $part (@parts) {
762: if (!exists($allparts{$part})) {$allparts{$part}=1;};
1.109 albertel 763: if ($analyze{$part.'.type'} eq 'numericalresponse' ||
764: $analyze{$part.'.type'} eq 'stringresponse' ||
765: $analyze{$part.'.type'} eq 'formularesponse' ) {
1.263 albertel 766: foreach my $name (keys(%{ $analyze{$part.'.answer'} })) {
767: my $i=0;
768: foreach my $answer_part (@{ $analyze{$part.'.answer'}{$name} }) {
769: push( @{ $overall{$part.'.answer'}[$i] },
770: $answer_part);
771: my $concatanswer= join("\0",@{ $answer_part });
772: if (($concatanswer eq '') || ($concatanswer=~/^\@/)) {
1.266 albertel 773: $answer_part = ['<span class="LC_error">'.&mt('Error').'</span>'];
1.263 albertel 774: }
775: $seedexample{join("\0",$part,$i,@{$answer_part})}=
776: $thisseed;
777: $i++;
778: }
1.219 www 779: }
1.275 albertel 780: if (!keys(%{ $analyze{$part.'.answer'} })) {
781: my $answer_part =
782: ['<span class="LC_error">'.&mt('Error').'</span>'];
783: $seedexample{join("\0",$part,0,@{$answer_part})}=
784: $thisseed;
785: push( @{ $overall{$part.'.answer'}[0] },
786: $answer_part);
787: }
1.101 albertel 788: }
789: }
790: }
1.114 albertel 791: &Apache::lonhtmlcommon::Update_PrgWin($request,\%prog_state,
1.146 albertel 792: &mt('Analyzing Results'));
1.313 bisitz 793: $request->print('<hr />'
1.308 bisitz 794: .'<h3>'
795: .&mt('List of possible answers')
796: .'</h3>'
797: );
1.134 albertel 798: foreach my $part (sort(keys(%allparts))) {
1.109 albertel 799: if (defined(@{ $overall{$part.'.answer'} })) {
1.263 albertel 800: for (my $i=0;$i<scalar(@{ $overall{$part.'.answer'} });$i++) {
801: my $num_cols=scalar(@{ $overall{$part.'.answer'}[$i][0] });
1.308 bisitz 802: $request->print(&Apache::loncommon::start_data_table()
803: .&Apache::loncommon::start_data_table_header_row()
804: .'<th colspan="'.($num_cols+1).'">'
805: .&mt('Part').' '.$part
806: );
1.263 albertel 807: if (scalar(@{ $overall{$part.'.answer'} }) > 1) {
1.308 bisitz 808: $request->print(' '.&mt('Answer [_1]',$i+1));
1.263 albertel 809: }
1.308 bisitz 810: $request->print('</th>'
811: .&Apache::loncommon::end_data_table_header_row()
812: );
1.263 albertel 813: my %frequency;
814: foreach my $answer (sort {$a->[0] <=> $b->[0]} (@{ $overall{$part.'.answer'}[$i] })) {
815: $frequency{join("\0",@{ $answer })}++;
816: }
1.308 bisitz 817: $request->print(&Apache::loncommon::start_data_table_header_row()
818: .'<th colspan="'.($num_cols).'">'.&mt('Answer').'</th>'
819: .'<th>'.&mt('Frequency').'<br />'
820: .'('.&mt('click for example').')</th>'
821: .&Apache::loncommon::end_data_table_header_row()
822: );
1.263 albertel 823: foreach my $answer (sort {(split("\0",$a))[0] <=> (split("\0",$b))[0]} (keys(%frequency))) {
1.308 bisitz 824: $request->print(&Apache::loncommon::start_data_table_row()
825: .'<td>'
826: .join('</td><td>',split("\0",$answer))
827: .'</td>'
828: .'<td>'
829: .'<a href="'.$request->uri.'?rndseed='.$seedexample{join("\0",$part,$i,$answer)}.'">'.$frequency{$answer}.'</a>'
830: .'</td>'
831: .&Apache::loncommon::end_data_table_row()
832: );
1.263 albertel 833: }
1.308 bisitz 834: $request->print(&Apache::loncommon::end_data_table());
1.109 albertel 835: }
836: } else {
1.307 bisitz 837: $request->print('<p class="LC_warning">'
838: .&mt('Response [_1] is not analyzable at this time.',$part)
839: .'</p>'
840: );
1.101 albertel 841: }
842: }
1.130 albertel 843: if (scalar(keys(%allparts)) == 0 ) {
1.307 bisitz 844: $request->print('<p class="LC_warning">'
845: .&mt('Found no analyzable responses in this problem.'
846: .' Currently only Numerical, Formula and String response styles are supported.')
847: .'</p>'
848: );
1.130 albertel 849: }
1.114 albertel 850: &Apache::lonhtmlcommon::Close_PrgWin($request,\%prog_state);
1.109 albertel 851: &analyze_footer($request);
1.101 albertel 852: &Apache::lonhomework::showhash(%overall);
853: return $result;
1.74 albertel 854: }
855:
1.277 albertel 856: {
857: my $show_problem_status;
858: sub reset_show_problem_status {
859: undef($show_problem_status);
860: }
861:
862: sub set_show_problem_status {
863: my ($new_status) = @_;
864: $show_problem_status = lc($new_status);
865: }
866:
867: sub hide_problem_status {
868: return ($show_problem_status eq 'no'
869: || $show_problem_status eq 'no_feedback_ever');
870: }
871:
872: sub show_problem_status {
873: return ($show_problem_status eq 'yes'
1.285 albertel 874: || $show_problem_status eq 'answer'
1.277 albertel 875: || $show_problem_status eq '');
876: }
877:
878: sub show_some_problem_status {
879: return ($show_problem_status eq 'no');
880: }
881:
882: sub show_no_problem_status {
883: return ($show_problem_status eq 'no_feedback_ever');
884: }
1.285 albertel 885:
886: sub show_answer_problem_status {
887: return ($show_problem_status eq 'answer');
888: }
1.277 albertel 889: }
890:
1.64 albertel 891: sub editxmlmode {
1.145 albertel 892: my ($request,$file) = @_;
893: my $result;
894: my $problem=&Apache::lonnet::getfile($file);
895: if ($problem eq -1) {
1.305 bisitz 896: &Apache::lonxml::error(
897: '<b> '
898: .&mt('Unable to find [_1]',
899: '<span class="LC_filename">'.$file.'</span>')
900: .'</b>');
901:
1.145 albertel 902: $problem='';
903: }
1.323 ! www 904:
! 905: if (($env{'form.problemmode'} eq 'saveeditxml') ||
! 906: ($env{'form.problemmode'} eq 'saveviewxml') ||
! 907: ($env{'form.problemmode'} eq 'undoxml')) {
1.145 albertel 908: my $error=&handle_save_or_undo($request,\$problem,
1.204 albertel 909: \$env{'form.editxmltext'});
1.145 albertel 910: if (!$error) { $problem=&Apache::lonnet::getfile($file); }
911: }
1.204 albertel 912: &Apache::lonhomework::showhashsubset(\%env,'^form');
1.323 ! www 913: if ($env{'form.problemmode'} eq 'saveviewxml') {
1.204 albertel 914: &Apache::lonhomework::showhashsubset(\%env,'^form');
1.289 raeburn 915: $env{'form.problemmode'}='view';
1.145 albertel 916: &renderpage($request,$file);
917: } else {
918: my ($rows,$cols) = &Apache::edit::textarea_sizes(\$problem);
919: if ($cols > 80) { $cols = 80; }
920: if ($cols < 70) { $cols = 70; }
921: if ($rows < 20) { $rows = 20; }
1.269 albertel 922: my $js =
923: &Apache::edit::js_change_detection().
1.289 raeburn 924: &Apache::loncommon::resize_textarea_js().
1.296 raeburn 925: &Apache::structuretags::setmode_javascript().
1.298 foxr 926: &Apache::lonhtmlcommon::dragmath_js("EditMathPopup");
1.312 bisitz 927:
928: # Breadcrumbs
929: my $brcrum = [{'href' => &Apache::loncommon::authorspace(),
930: 'text' => 'Construction Space'},
931: {'href' => '',
932: 'text' => 'Problem Editing'}];
933:
1.238 albertel 934: my $start_page =
1.269 albertel 935: &Apache::loncommon::start_page(&mt("EditXML [_1]",$file),$js,
936: {'no_auto_mt_title' => 1,
1.318 droeschl 937: 'only_body' => 0,
1.269 albertel 938: 'add_entries' => {
939: 'onresize' => q[resize_textarea('LC_editxmltext','LC_aftertextarea')],
940: 'onload' => q[resize_textarea('LC_editxmltext','LC_aftertextarea')],
1.323 ! www 941: },
1.312 bisitz 942: 'bread_crumbs' => $brcrum,
1.323 ! www 943: });
1.311 bisitz 944:
945: $result=$start_page
946: .&Apache::loncommon::head_subbox(
947: &Apache::loncommon::CSTR_pageheader());
948: $result.=&renderpage($request,$file,['no_output_web'],1).
1.310 bisitz 949: '<form '.&Apache::edit::form_change_detection().' name="lonhomework" method="post" action="'.
1.204 albertel 950: &HTML::Entities::encode($env{'request.uri'},'<>&"').'">'.
1.179 albertel 951: &Apache::structuretags::remember_problem_state().'
1.278 albertel 952: <div class="LC_edit_problem_editxml_header">
1.280 albertel 953: <table class="LC_edit_problem_header_title"><tr><td>
1.317 bisitz 954: <h2>'.&mt('Problem Editing').' '.&Apache::loncommon::help_open_topic('Problem_Editor_XML_Index').'</h2>
1.280 albertel 955: </td><td align="right">
1.301 jms 956: '.&Apache::loncommon::helpLatexCheatsheet('Problem_LON-CAPA_Functions','Script Functions').'
1.280 albertel 957: </td></tr>
1.323 ! www 958: </table>';
! 959:
! 960: $result.='<input type="hidden" name="problemmode" value="saveedit" />'.
! 961: &Apache::structuretags::problem_edit_buttons('editxml');
! 962:
! 963: $result.='<hr style="clear:both;" />'.&Apache::lonxml::message_location().'</div>'.
! 964: '<textarea '.&Apache::edit::element_change_detection().
1.269 albertel 965: ' rows="'.$rows.'" cols="'.$cols.'" style="width:100%" '.
966: ' name="editxmltext" id="LC_editxmltext">'.
967: &HTML::Entities::encode($problem,'<>&"').'</textarea>
968: <div id="LC_aftertextarea">
969: </div>
1.238 albertel 970: </form>'.&Apache::loncommon::end_page();
1.171 albertel 971: &Apache::lonxml::add_messages(\$result);
1.145 albertel 972: $request->print($result);
973: }
974: return '';
1.47 albertel 975: }
1.189 albertel 976:
1.301 jms 977: #
978: # Render the page in whatever target desired.
979: #
1.41 albertel 980: sub renderpage {
1.213 albertel 981: my ($request,$file,$targets,$return_string) = @_;
1.52 albertel 982:
1.211 albertel 983: my @targets = @{$targets || [&get_target()]};
1.204 albertel 984: &Apache::lonhomework::showhashsubset(\%env,'form.');
1.145 albertel 985: &Apache::lonxml::debug("Running targets ".join(':',@targets));
1.268 albertel 986:
1.171 albertel 987: my $overall_result;
1.145 albertel 988: foreach my $target (@targets) {
1.183 albertel 989: # FIXME need to do something intelligent when a problem goes
990: # from viewable to not viewable due to map conditions
991: #&setuppermissions();
992: #if ( $Apache::lonhomework::browse ne '2'
993: # && $Apache::lonhomework::browse ne 'F' ) {
994: # $request->print(" You most likely shouldn't see me.");
995: #}
1.145 albertel 996: #my $t0 = [&gettimeofday()];
1.211 albertel 997: my $output=1;
998: if ($target eq 'no_output_web') {
999: $target = 'web'; $output=0;
1000: }
1.145 albertel 1001: my $problem=&Apache::lonnet::getfile($file);
1.222 albertel 1002: my $result;
1.145 albertel 1003: if ($problem eq -1) {
1.260 albertel 1004: $problem='';
1.222 albertel 1005: my $filename=(split('/',$file))[-1];
1.260 albertel 1006: my $error =
1007: "<b> ".&mt('Unable to find [_1]',
1.305 bisitz 1008: '<span class="LC_filename">'.$filename.'</span>')
1.260 albertel 1009: ."</b>";
1010: $result.=
1011: &Apache::loncommon::simple_error_page($request,'Not available',
1012: $error);
1013: return;
1.145 albertel 1014: }
1.52 albertel 1015:
1.145 albertel 1016: my %mystyle;
1017: if ($target eq 'analyze') { %Apache::lonhomework::analyze=(); }
1018: if ($target eq 'answer') { &showhash(%Apache::lonhomework::history); }
1.204 albertel 1019: if ($target eq 'web') {&Apache::lonhomework::showhashsubset(\%env,'^form');}
1.145 albertel 1020:
1021: &Apache::lonxml::debug("Should be parsing now");
1.222 albertel 1022: $result .= &Apache::lonxml::xmlparse($request, $target, $problem,
1023: &setup_vars($target),%mystyle);
1.273 albertel 1024: &finished_parsing();
1.214 albertel 1025: if (!$output) { $result = ''; }
1.145 albertel 1026: #$request->print("Result follows:");
1027: if ($target eq 'modified') {
1028: &handle_save_or_undo($request,\$problem,\$result);
1029: } else {
1030: if ($target eq 'analyze') {
1031: $result=&Apache::lonnet::hashref2str(\%Apache::lonhomework::analyze);
1032: undef(%Apache::lonhomework::analyze);
1033: }
1034: #my $td=&tv_interval($t0);
1035: #if ( $Apache::lonxml::debug) {
1036: #$result =~ s:</body>::;
1037: #$result.="<br />Spent $td seconds processing target $target\n</body>";
1038: #}
1.171 albertel 1039: # $request->print($result);
1040: $overall_result.=$result;
1041: # $request->rflush();
1.145 albertel 1042: }
1043: #$request->print(":Result ends");
1044: #my $td=&tv_interval($t0);
1.52 albertel 1045: }
1.213 albertel 1046: if (!$return_string) {
1047: &Apache::lonxml::add_messages(\$overall_result);
1048: $request->print($overall_result);
1049: $request->rflush();
1050: } else {
1051: return $overall_result;
1052: }
1.41 albertel 1053: }
1054:
1.273 albertel 1055: sub finished_parsing {
1056: undef($Apache::lonhomework::parsing_a_problem);
1057: undef($Apache::lonhomework::parsing_a_task);
1058: }
1059:
1.42 albertel 1060: sub get_template_list {
1.282 albertel 1061: my ($extension) = @_;
1.145 albertel 1062: my $result;
1063: my @allnames;
1064: &Apache::lonxml::debug("Looking for :$extension:");
1.282 albertel 1065: my $glob_extension = $extension;
1066: if ($extension eq 'survey' || $extension eq 'exam') {
1067: $glob_extension = 'problem';
1068: }
1069: my @files = glob($Apache::lonnet::perlvar{'lonIncludes'}.
1070: '/templates/*.'.$glob_extension);
1.292 www 1071: @files = map {[$_,&mt(&Apache::lonnet::metadata($_, 'title')),
1072: (&Apache::lonnet::metadata($_, 'category')?&mt(&Apache::lonnet::metadata($_, 'category')):&mt('Miscellaneous')),
1073: &mt(&Apache::lonnet::metadata($_, 'help'))]} (@files);
1074: @files = sort {$a->[2].$a->[1] cmp $b->[2].$b->[1]} (@files);
1.287 raeburn 1075: my ($midpoint,$seconddiv,$numfiles);
1076: $numfiles = 0;
1077: foreach my $file (@files) {
1078: next if ($file->[1] !~ /\S/);
1079: $numfiles ++;
1080: }
1081: if ($numfiles > 0) {
1082: $result = '<div class="LC_left_float">';
1083: $midpoint = int($numfiles/2);
1084: if ($numfiles%2) {
1085: $midpoint ++;
1086: }
1087: }
1088: my $count = 0;
1.292 www 1089: my $currentcategory='';
1.314 bisitz 1090: my $first = 1;
1.282 albertel 1091: foreach my $file (@files) {
1092: next if ($file->[1] !~ /\S/);
1.292 www 1093: if ($file->[2] ne $currentcategory) {
1094: $currentcategory=$file->[2];
1095: if ((!$seconddiv) && ($count >= $midpoint)) {
1.314 bisitz 1096: $result .= '</div></div>'."\n".'<div class="LC_left_float">'."\n";
1.292 www 1097: $seconddiv = 1;
1.314 bisitz 1098: } elsif (!$first) {
1099: $result.='</div>'."\n";
1100: } else {
1101: $first = 0;
1.292 www 1102: }
1.314 bisitz 1103: $result.= '<div class="LC_Box">'."\n"
1104: .'<h3 class="LC_hcell">'.$currentcategory.'</h3>'."\n";
1.293 www 1105: $count++;
1.292 www 1106: }
1.282 albertel 1107: $result .=
1108: '<label><input type="radio" name="template" value="'.$file->[0].'" />'.
1.292 www 1109: $file->[1].'</label>';
1110: if ($file->[3]) {
1111: $result.=&Apache::loncommon::help_open_topic($file->[3]);
1112: }
1113: my $filename=$file->[0];
1114: $filename=~s/^\/home\/httpd\/html//;
1.314 bisitz 1115: $result.=' <span class="LC_fontsize_small">'
1.315 droeschl 1116: .'<a href="'.$filename.'?inhibitmenu=yes" target="sample">'.&mt('Example').'</a>'
1.314 bisitz 1117: .'</span><br />'."\n";
1.287 raeburn 1118: $count ++;
1119: }
1120: if ($numfiles > 0) {
1.314 bisitz 1121: $result .= '</div></div>'."\n".'<div class="LC_clear_float_footer"></div>'."\n";
1.42 albertel 1122: }
1.145 albertel 1123: return $result;
1.42 albertel 1124: }
1125:
1126: sub newproblem {
1.65 matthew 1127: my ($request) = @_;
1.282 albertel 1128:
1129: if ($env{'form.template'}) {
1130: my $file = $env{'form.template'};
1.65 matthew 1131: my $dest = &Apache::lonnet::filelocation("",$request->uri);
1.282 albertel 1132: &File::Copy::copy($file,$dest);
1.65 matthew 1133: &renderpage($request,$dest);
1.282 albertel 1134: return;
1135: }
1136:
1137: my ($extension) = ($request->uri =~ m/\.(\w+)$/);
1138: &Apache::lonxml::debug("Looking for :$extension:");
1139: my $templatelist=&get_template_list($extension);
1140: if ($env{'form.newfile'} && !$templatelist) {
1141: # no templates found
1.131 albertel 1142: my $templatefilename =
1.258 albertel 1143: $request->dir_config('lonIncludes').'/templates/blank.'.$extension;
1.131 albertel 1144: &Apache::lonxml::debug("$templatefilename");
1145: my $dest = &Apache::lonnet::filelocation("",$request->uri);
1.282 albertel 1146: &File::Copy::copy($templatefilename,$dest);
1.131 albertel 1147: &renderpage($request,$dest);
1.85 albertel 1148: } else {
1.176 albertel 1149: my $url=&HTML::Entities::encode($request->uri,'<>&"');
1150: my $shownurl=$url;
1.157 albertel 1151: $shownurl=~s-^/~-/priv/-;
1.65 matthew 1152: my $dest = &Apache::lonnet::filelocation("",$request->uri);
1.128 albertel 1153: my $errormsg;
1.85 albertel 1154: my $instructions;
1.312 bisitz 1155: my $brcrum = [{'href' => &Apache::loncommon::authorspace(),
1156: 'text' => 'Construction Space'},
1157: {'href' => '',
1158: 'text' => "Create New $extension"}];
1.240 albertel 1159: my $start_page =
1.312 bisitz 1160: &Apache::loncommon::start_page("Create New $extension",
1161: undef,
1162: {'bread_crumbs' => $brcrum,});
1.311 bisitz 1163: $request->print(
1164: $start_page
1165: .&Apache::loncommon::head_subbox(
1166: &Apache::loncommon::CSTR_pageheader())
1167: .'<h1>'.&mt("Creating a new $extension resource.")."</h1>
1.128 albertel 1168: $errormsg
1.258 albertel 1169: ".&mt("The requested file [_1] currently does not exist.",
1.314 bisitz 1170: '<span class="LC_filename">'.$shownurl.'</span>').'
1171: <p class="LC_info">
1172: '.&mt("To create a new $extension, select a template from the".
1173: " list below. Then click on the \"Create $extension\" button.").'
1174: </p><div><form action="'.$url.'" method="post">');
1.258 albertel 1175:
1.85 albertel 1176: if (defined($templatelist)) {
1.282 albertel 1177: $request->print($templatelist);
1.85 albertel 1178: }
1.282 albertel 1179: $request->print('<br /><input type="submit" name="newfile" value="'.
1180: &mt("Create $extension").'" />');
1.314 bisitz 1181: $request->print('</form></div>'.&Apache::loncommon::end_page());
1.65 matthew 1182: }
1.282 albertel 1183: return;
1.42 albertel 1184: }
1185:
1.268 albertel 1186: sub update_construct_style {
1187: if ($env{'request.state'} eq "construct"
1.289 raeburn 1188: && $env{'form.problemmode'} eq 'view'
1.268 albertel 1189: && defined($env{'form.submitted'})
1190: && !defined($env{'form.resetdata'})
1191: && !defined($env{'form.newrandomization'})) {
1192: if ((!$env{'form.style_file'} && $env{'construct.style'})
1193: ||$env{'form.clear_style_file'}) {
1.303 raeburn 1194: &Apache::lonnet::delenv('construct.style');
1.268 albertel 1195: } elsif ($env{'form.style_file'}
1196: && $env{'construct.style'} ne $env{'form.style_file'}) {
1.291 raeburn 1197: &Apache::lonnet::appenv({'construct.style' =>
1198: $env{'form.style_file'}});
1.268 albertel 1199: }
1200: }
1201: }
1202:
1203:
1.41 albertel 1204: sub handler {
1.145 albertel 1205: #my $t0 = [&gettimeofday()];
1206: my $request=$_[0];
1.223 albertel 1207: $Apache::lonxml::request=$request;
1.204 albertel 1208: $Apache::lonxml::debug=$env{'user.debug'};
1209: $env{'request.uri'}=$request->uri;
1.180 albertel 1210: &setuppermissions();
1.193 albertel 1211:
1.145 albertel 1212: my $file=&Apache::lonnet::filelocation("",$request->uri);
1213:
1214: #check if we know where we are
1.204 albertel 1215: if ($env{'request.course.fn'} && !&Apache::lonnet::symbread()) {
1.145 albertel 1216: # if we are browsing we might not be able to know where we are
1.173 albertel 1217: if ($Apache::lonhomework::browse ne 'F' &&
1.204 albertel 1218: $env{'request.state'} ne "construct") {
1.145 albertel 1219: #should know where we are, so ask
1.253 albertel 1220: &unset_permissions();
1221: $request->internal_redirect('/adm/ambiguous');
1222: return OK;
1.145 albertel 1223: }
1224: }
1.253 albertel 1225: if (&setupheader($request)) {
1226: &unset_permissions();
1227: return OK;
1228: }
1.244 albertel 1229: &Apache::lonxml::debug("Permissions:$Apache::lonhomework::browse:$Apache::lonhomework::viewgrades:$Apache::lonhomework::modifygrades:$Apache::lonhomework::queuegrade");
1.204 albertel 1230: &Apache::lonxml::debug("Problem Mode ".$env{'form.problemmode'});
1.261 albertel 1231: my ($symb) = &Apache::lonnet::whichuser();
1.145 albertel 1232: &Apache::lonxml::debug('symb is '.$symb);
1.204 albertel 1233: if ($env{'request.state'} eq "construct") {
1.145 albertel 1234: if ( -e $file ) {
1235: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
1236: ['problemmode']);
1.204 albertel 1237: if (!(defined $env{'form.problemmode'})) {
1.145 albertel 1238: #first visit to problem in construction space
1.289 raeburn 1239: $env{'form.problemmode'}= 'view';
1.145 albertel 1240: &renderpage($request,$file);
1.323 ! www 1241: } elsif (($env{'form.problemmode'} eq 'editxml') ||
! 1242: ($env{'form.problemmode'} eq 'saveeditxml') ||
! 1243: ($env{'form.problemmode'} eq 'saveviewxml') ||
! 1244: ($env{'form.problemmode'} eq 'undoxml')) {
1.145 albertel 1245: &editxmlmode($request,$file);
1.289 raeburn 1246: } elsif ($env{'form.problemmode'} eq 'calcanswers') {
1.145 albertel 1247: &analyze($request,$file);
1248: } else {
1.268 albertel 1249: &update_construct_style();
1.145 albertel 1250: &renderpage($request,$file);
1251: }
1252: } else {
1253: # requested file doesn't exist in contruction space
1254: &newproblem($request);
1255: }
1256: } else {
1257: # just render the page normally outside of construction space
1258: &Apache::lonxml::debug("not construct");
1.52 albertel 1259: &renderpage($request,$file);
1.41 albertel 1260: }
1.145 albertel 1261: #my $td=&tv_interval($t0);
1262: #&Apache::lonxml::debug("Spent $td seconds processing");
1263: # always turn off debug messages
1264: $Apache::lonxml::debug=0;
1.253 albertel 1265: &unset_permissions();
1.145 albertel 1266: return OK;
1.52 albertel 1267:
1.1 albertel 1268: }
1269:
1270: 1;
1271: __END__
FreeBSD-CVSweb <freebsd-cvsweb@FreeBSD.org>
![[BACK]](/icons/back.gif){kind=icon}
Return to lonhomework.pm CVS log ![[TXT]](/icons/text.gif){kind=icon}
![[DIR]](/icons/dir.gif){kind=icon}
Up to [LON-CAPA] / loncom / homework