Annotation of loncom/interface/slotrequest.pm, revision 1.78
1.1 albertel 1: # The LearningOnline Network with CAPA
2: # Handler for requesting to have slots added to a students record
3: #
1.78 ! albertel 4: # $Id: slotrequest.pm,v 1.77 2007/04/10 23:31:18 albertel Exp $
1.1 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/
27: #
28: ###
29:
30: package Apache::slotrequest;
31:
32: use strict;
33: use Apache::Constants qw(:common :http :methods);
34: use Apache::loncommon();
35: use Apache::lonlocal;
36: use Apache::lonnet;
1.48 albertel 37: use Apache::lonnavmaps();
1.27 albertel 38: use Date::Manip;
1.63 www 39: use lib '/home/httpd/lib/perl/';
40: use LONCAPA;
1.1 albertel 41:
42: sub fail {
43: my ($r,$code)=@_;
1.2 albertel 44: if ($code eq 'not_valid') {
1.8 albertel 45: $r->print('<p>'.&mt('Unable to understand what resource you wanted to sign up for.').'</p>');
1.61 albertel 46: } elsif ($code eq 'not_available') {
47: $r->print('<p>'.&mt('No slots are available.').'</p>');
1.8 albertel 48: } elsif ($code eq 'not_allowed') {
49: $r->print('<p>'.&mt('Not allowed to sign up or change reservations at this time.').'</p>');
50: } else {
51: $r->print('<p>'.&mt('Failed.').'</p>');
1.2 albertel 52: }
1.8 albertel 53:
1.42 albertel 54: &return_link($r);
1.1 albertel 55: &end_page($r);
56: }
57:
58: sub start_page {
1.28 albertel 59: my ($r,$title)=@_;
1.52 albertel 60: $r->print(&Apache::loncommon::start_page($title));
1.1 albertel 61: }
62:
63: sub end_page {
64: my ($r)=@_;
1.52 albertel 65: $r->print(&Apache::loncommon::end_page());
1.1 albertel 66: }
67:
1.2 albertel 68: =pod
69:
70: slot_reservations db
71: - keys are
72: - slotname\0id -> value is an hashref of
73: name -> user@domain of holder
74: timestamp -> timestamp of reservation
75: symb -> symb of resource that it is reserved for
76:
77: =cut
78:
79: sub get_course {
1.69 albertel 80: (undef,my $courseid)=&Apache::lonnet::whichuser();
1.2 albertel 81: my $cdom=$env{'course.'.$courseid.'.domain'};
82: my $cnum=$env{'course.'.$courseid.'.num'};
83: return ($cnum,$cdom);
84: }
85:
86: sub get_reservation_ids {
87: my ($slot_name)=@_;
88:
89: my ($cnum,$cdom)=&get_course();
90:
91: my %consumed=&Apache::lonnet::dump('slot_reservations',$cdom,$cnum,
92: "^$slot_name\0");
1.67 albertel 93: if (&Apache::lonnet::error(%consumed)) {
1.40 albertel 94: return 'error: Unable to determine current status';
95: }
1.2 albertel 96: my ($tmp)=%consumed;
97: if ($tmp=~/^error: 2 / ) {
98: return 0;
99: }
100: return keys(%consumed);
101: }
102:
103: sub space_available {
104: my ($slot_name,$slot)=@_;
105: my $max=$slot->{'maxspace'};
106:
107: if (!defined($max)) { return 1; }
108:
109: my $consumed=scalar(&get_reservation_ids($slot_name));
110: if ($consumed < $max) {
111: return 1
112: }
113: return 0;
114: }
1.3 albertel 115:
1.4 albertel 116: sub check_for_reservation {
1.43 albertel 117: my ($symb,$mode)=@_;
1.4 albertel 118: my $student = &Apache::lonnet::EXT("resource.0.availablestudent", $symb,
119: $env{'user.domain'}, $env{'user.name'});
120:
121: my $course = &Apache::lonnet::EXT("resource.0.available", $symb,
122: $env{'user.domain'}, $env{'user.name'});
123: my @slots = (split(/:/,$student), split(/:/, $course));
124:
125: &Apache::lonxml::debug(" slot list is ".join(':',@slots));
126:
127: my ($cnum,$cdom)=&get_course();
128: my %slots=&Apache::lonnet::get('slots', [@slots], $cdom, $cnum);
129:
1.67 albertel 130: if (&Apache::lonnet::error($student)
131: || &Apache::lonnet::error($course)
132: || &Apache::lonnet::error(%slots)) {
1.41 albertel 133: return 'error: Unable to determine current status';
134: }
1.43 albertel 135: my @got;
136: foreach my $slot_name (sort {
137: if (ref($slots{$a}) && ref($slots{$b})) {
138: return $slots{$a}{'starttime'} <=> $slots{$b}{'starttime'}
139: }
140: if (ref($slots{$a})) { return -1;}
141: if (ref($slots{$b})) { return 1;}
142: return 0;
143: } @slots) {
1.4 albertel 144: next if (!defined($slots{$slot_name}) ||
145: !ref($slots{$slot_name}));
146: &Apache::lonxml::debug(time." $slot_name ".
147: $slots{$slot_name}->{'starttime'}." -- ".
148: $slots{$slot_name}->{'startreserve'});
1.7 albertel 149: if ($slots{$slot_name}->{'endtime'} > time &&
1.4 albertel 150: $slots{$slot_name}->{'startreserve'} < time) {
1.7 albertel 151: # between start of reservation times and end of slot
1.43 albertel 152: if ($mode eq 'allslots') {
153: push(@got,$slot_name);
154: } else {
155: return($slot_name, $slots{$slot_name});
156: }
1.4 albertel 157: }
158: }
1.43 albertel 159: if ($mode eq 'allslots' && @got) {
160: return @got;
161: }
1.4 albertel 162: return (undef,undef);
163: }
164:
1.48 albertel 165: sub get_consumed_uniqueperiods {
166: my ($slots) = @_;
167: my $navmap=Apache::lonnavmaps::navmap->new;
168: my @problems = $navmap->retrieveResources(undef,
169: sub { $_[0]->is_problem() },1,0);
170: my %used_slots;
171: foreach my $problem (@problems) {
172: my $symb = $problem->symb();
173: my $student = &Apache::lonnet::EXT("resource.0.availablestudent",
174: $symb, $env{'user.domain'},
175: $env{'user.name'});
176: my $course = &Apache::lonnet::EXT("resource.0.available",
177: $symb, $env{'user.domain'},
178: $env{'user.name'});
1.67 albertel 179: if (&Apache::lonnet::error($student)
180: || &Apache::lonnet::error($course)) {
1.48 albertel 181: return 'error: Unable to determine current status';
182: }
183: foreach my $slot (split(/:/,$student), split(/:/, $course)) {
184: $used_slots{$slot}=1;
185: }
186: }
1.43 albertel 187:
188: if (!ref($slots)) {
1.48 albertel 189: my ($cnum,$cdom)=&get_course();
190: my %slots=&Apache::lonnet::get('slots', [keys(%used_slots)], $cdom, $cnum);
1.67 albertel 191: if (&Apache::lonnet::error(%slots)) {
1.48 albertel 192: return 'error: Unable to determine current status';
193: }
1.43 albertel 194: $slots = \%slots;
195: }
1.41 albertel 196:
1.48 albertel 197: my %consumed_uniqueperiods;
198: foreach my $slot_name (keys(%used_slots)) {
1.43 albertel 199: next if (!defined($slots->{$slot_name}) ||
200: !ref($slots->{$slot_name}));
1.48 albertel 201:
1.43 albertel 202: next if (!defined($slots->{$slot_name}{'uniqueperiod'}) ||
203: !ref($slots->{$slot_name}{'uniqueperiod'}));
1.48 albertel 204: $consumed_uniqueperiods{$slot_name} =
205: $slots->{$slot_name}{'uniqueperiod'};
206: }
207: return \%consumed_uniqueperiods;
208: }
209:
210: sub check_for_conflict {
211: my ($symb,$new_slot_name,$new_slot,$slots,$consumed_uniqueperiods)=@_;
212:
213: if (!defined($new_slot->{'uniqueperiod'})) { return undef; }
214:
215: if (!ref($consumed_uniqueperiods)) {
216: $consumed_uniqueperiods = &get_consumed_uniqueperiods($slots);
1.67 albertel 217: if (&Apache::lonnet::error(%$consumed_uniqueperiods)) {
1.48 albertel 218: return 'error: Unable to determine current status';
219: }
220: }
221:
222: my ($new_uniq_start,$new_uniq_end) = @{$new_slot->{'uniqueperiod'}};
223: foreach my $slot_name (keys(%$consumed_uniqueperiods)) {
224: my ($start,$end)=@{$consumed_uniqueperiods->{$slot_name}};
1.43 albertel 225: if (!
226: ($start < $new_uniq_start && $end < $new_uniq_start) ||
227: ($start > $new_uniq_end && $end > $new_uniq_end )) {
1.5 albertel 228: return $slot_name;
229: }
230: }
231: return undef;
232:
233: }
234:
1.2 albertel 235: sub make_reservation {
236: my ($slot_name,$slot,$symb)=@_;
1.3 albertel 237:
238: my ($cnum,$cdom)=&get_course();
239:
240: my $value=&Apache::lonnet::EXT("resource.0.availablestudent",$symb,
241: $env{'user.domain'},$env{'user.name'});
242: &Apache::lonxml::debug("value is $value<br />");
1.59 albertel 243:
244: my $use_slots = &Apache::lonnet::EXT("resource.0.useslots");
245: &Apache::lonxml::debug("use_slots is $use_slots<br />");
246:
1.67 albertel 247: if (&Apache::lonnet::error($value)
248: || &Apache::lonnet::error($use_slots)) {
1.40 albertel 249: return 'error: Unable to determine current status';
250: }
251:
1.59 albertel 252: my $parm_symb = $symb;
253: my $parm_level = 1;
1.66 albertel 254: if ($use_slots eq 'map' || $use_slots eq 'map_map') {
1.59 albertel 255: my ($map) = &Apache::lonnet::decode_symb($symb);
256: $parm_symb = &Apache::lonnet::symbread($map);
257: $parm_level = 2;
258: }
259:
1.3 albertel 260: foreach my $other_slot (split(/:/, $value)) {
261: if ($other_slot eq $slot_name) {
262: my %consumed=&Apache::lonnet::dump('slot_reservations', $cdom,
263: $cnum, "^$slot_name\0");
1.67 albertel 264: if (&Apache::lonnet::error($value)) {
1.40 albertel 265: return 'error: Unable to determine current status';
266: }
1.57 albertel 267: my $me=$env{'user.name'}.':'.$env{'user.domain'};
1.3 albertel 268: foreach my $key (keys(%consumed)) {
269: if ($consumed{$key}->{'name'} eq $me) {
270: my $num=(split('\0',$key))[1];
271: return -$num;
272: }
273: }
274: }
275: }
276:
1.2 albertel 277: my $max=$slot->{'maxspace'};
1.3 albertel 278: if (!defined($max)) { $max=99999; }
1.2 albertel 279:
280: my (@ids)=&get_reservation_ids($slot_name);
1.67 albertel 281: if (&Apache::lonnet::error(@ids)) {
1.40 albertel 282: return 'error: Unable to determine current status';
283: }
1.2 albertel 284: my $last=0;
285: foreach my $id (@ids) {
286: my $num=(split('\0',$id))[1];
287: if ($num > $last) { $last=$num; }
288: }
289:
290: my $wanted=$last+1;
1.3 albertel 291: &Apache::lonxml::debug("wanted $wanted<br />");
1.7 albertel 292: if (scalar(@ids) >= $max) {
1.2 albertel 293: # full up
1.7 albertel 294: return undef;
1.2 albertel 295: }
296:
1.57 albertel 297: my %reservation=('name' => $env{'user.name'}.':'.$env{'user.domain'},
1.2 albertel 298: 'timestamp' => time,
1.59 albertel 299: 'symb' => $parm_symb);
1.2 albertel 300:
301: my $success=&Apache::lonnet::newput('slot_reservations',
302: {"$slot_name\0$wanted" =>
303: \%reservation},
1.3 albertel 304: $cdom, $cnum);
305:
1.2 albertel 306: if ($success eq 'ok') {
1.3 albertel 307: my $new_value=$slot_name;
308: if ($value) {
309: $new_value=$value.':'.$new_value;
310: }
311: my $result=&Apache::lonparmset::storeparm_by_symb($symb,
312: '0_availablestudent',
1.59 albertel 313: $parm_level, $new_value,
314: 'string',
1.3 albertel 315: $env{'user.name'},
316: $env{'user.domain'});
317: &Apache::lonxml::debug("hrrm $result");
1.2 albertel 318: return $wanted;
319: }
1.3 albertel 320:
1.2 albertel 321: # someone else got it
1.3 albertel 322: return undef;
323: }
324:
1.33 albertel 325: sub remove_registration {
326: my ($r) = @_;
1.55 albertel 327: if ($env{'form.entry'} ne 'remove all') {
328: return &remove_registration_user($r);
329: }
330: my $slot_name = $env{'form.slotname'};
331: my %slot=&Apache::lonnet::get_slot($slot_name);
332:
333: my ($cnum,$cdom)=&get_course();
334: my %consumed=&Apache::lonnet::dump('slot_reservations',$cdom,$cnum,
335: "^$slot_name\0");
1.67 albertel 336: if (&Apache::lonnet::error(%consumed)) {
1.78 ! albertel 337: $r->print("<p><span class=\"LC_error\">".&mt('A network error has occured.').'</span></p>');
1.55 albertel 338: return;
339: }
340: if (!%consumed) {
341: $r->print("<p>".&mt('Slot <tt>[_1]</tt> has no reservations.',
342: $slot_name)."</p>");
343: return;
344: }
345:
346: my @names = map { $consumed{$_}{'name'} } (sort(keys(%consumed)));
347: my $names = join(' ',@names);
348:
349: my $msg = &mt('Remove all of [_1] from slot [_2]?',$names,$slot_name);
350: &remove_registration_confirmation($r,$msg,['entry','slotname']);
351: }
352:
353: sub remove_registration_user {
354: my ($r) = @_;
355:
356: my $slot_name = $env{'form.slotname'};
357:
1.33 albertel 358: my $name = &Apache::loncommon::plainname($env{'form.uname'},
359: $env{'form.udom'});
360:
361: my $title = &Apache::lonnet::gettitle($env{'form.symb'});
362:
1.55 albertel 363: my $msg = &mt('Remove [_1] from slot [_2] for [_3]',
364: $name,$slot_name,$title);
365:
366: &remove_registration_confirmation($r,$msg,['uname','udom','slotname',
367: 'entry','symb']);
368: }
369:
370: sub remove_registration_confirmation {
371: my ($r,$msg,$inputs) =@_;
372:
1.33 albertel 373: my $hidden_input;
1.55 albertel 374: foreach my $parm (@{$inputs}) {
1.33 albertel 375: $hidden_input .=
376: '<input type="hidden" name="'.$parm.'" value="'
377: .&HTML::Entities::encode($env{'form.'.$parm},'"<>&\'').'" />'."\n";
378: }
1.55 albertel 379: my %lt = &Apache::lonlocal::texthash('yes' => 'Yes',
380: 'no' => 'No',);
1.33 albertel 381: $r->print(<<"END_CONFIRM");
1.55 albertel 382: <p> $msg </p>
1.64 albertel 383: <form action="/adm/slotrequest" method="post">
1.33 albertel 384: <input type="hidden" name="command" value="release" />
1.55 albertel 385: <input type="hidden" name="button" value="yes" />
1.33 albertel 386: $hidden_input
1.55 albertel 387: <input type="submit" value="$lt{'yes'}" />
1.33 albertel 388: </form>
1.64 albertel 389: <form action="/adm/slotrequest" method="post">
1.33 albertel 390: <input type="hidden" name="command" value="showslots" />
1.55 albertel 391: <input type="submit" value="$lt{'no'}" />
1.33 albertel 392: </form>
393: END_CONFIRM
394:
395: }
396:
1.55 albertel 397: sub release_all_slot {
398: my ($r,$mgr)=@_;
399:
400: my $slot_name = $env{'form.slotname'};
401:
402: my ($cnum,$cdom)=&get_course();
403:
404: my %consumed=&Apache::lonnet::dump('slot_reservations',$cdom,$cnum,
405: "^$slot_name\0");
406:
407: $r->print('<p>'.&mt('Releasing reservations').'</p>');
408:
409: foreach my $entry (sort { $consumed{$a}{'name'} cmp
410: $consumed{$b}{'name'} } (keys(%consumed))) {
1.57 albertel 411: my ($uname,$udom) = split(':',$consumed{$entry}{'name'});
1.55 albertel 412: my ($result,$msg) =
413: &release_reservation($slot_name,$uname,$udom,
414: $consumed{$entry}{'symb'},$mgr);
415: $r->print("<p>$msg</p>");
416: $r->rflush();
417: }
418: $r->print('<p><a href="/adm/slotrequest?command=showslots">'.
419: &mt('Return to slot list').'</a></p>');
420: &return_link($r);
421: }
422:
1.5 albertel 423: sub release_slot {
1.33 albertel 424: my ($r,$symb,$slot_name,$inhibit_return_link,$mgr)=@_;
1.6 albertel 425:
426: if ($slot_name eq '') { $slot_name=$env{'form.slotname'}; }
427:
1.33 albertel 428: my ($uname,$udom) = ($env{'user.name'}, $env{'user.domain'});
429: if ($mgr eq 'F'
430: && defined($env{'form.uname'}) && defined($env{'form.udom'})) {
431: ($uname,$udom) = ($env{'form.uname'}, $env{'form.udom'});
432: }
433:
434: if ($mgr eq 'F'
435: && defined($env{'form.symb'})) {
1.71 albertel 436: $symb = &unescape($env{'form.symb'});
1.33 albertel 437: }
1.55 albertel 438:
439: my ($result,$msg) =
440: &release_reservation($slot_name,$uname,$udom,$symb,$mgr);
441: $r->print("<p>$msg</p>");
442:
443: if ($mgr eq 'F') {
444: $r->print('<p><a href="/adm/slotrequest?command=showslots">'.
445: &mt('Return to slot list').'</a></p>');
446: }
447:
448: if (!$inhibit_return_link) { &return_link($r); }
449: return $result;
450: }
451:
452: sub release_reservation {
453: my ($slot_name,$uname,$udom,$symb,$mgr) = @_;
1.39 albertel 454: my %slot=&Apache::lonnet::get_slot($slot_name);
1.55 albertel 455: my $description=&get_description($slot_name,\%slot);
1.33 albertel 456:
1.39 albertel 457: if ($mgr ne 'F') {
1.43 albertel 458: if ($slot{'starttime'} < time) {
1.55 albertel 459: return (0,&mt('Not allowed to release Reservation: [_1], as it has already ended.',$description));
1.39 albertel 460: }
461: }
1.5 albertel 462: # get parameter string, check for existance, rebuild string with the slot
1.6 albertel 463: my @slots = split(/:/,&Apache::lonnet::EXT("resource.0.availablestudent",
1.33 albertel 464: $symb,$udom,$uname));
465:
1.6 albertel 466: my @new_slots;
467: foreach my $exist_slot (@slots) {
468: if ($exist_slot eq $slot_name) { next; }
469: push(@new_slots,$exist_slot);
470: }
471: my $new_param = join(':',@new_slots);
1.5 albertel 472:
1.55 albertel 473: my ($cnum,$cdom)=&get_course();
474:
1.5 albertel 475: # get slot reservations, check if user has one, if so remove reservation
1.6 albertel 476: my %consumed=&Apache::lonnet::dump('slot_reservations',$cdom,$cnum,
477: "^$slot_name\0");
478: foreach my $entry (keys(%consumed)) {
1.57 albertel 479: if ( $consumed{$entry}->{'name'} eq ($uname.':'.$udom) ) {
1.6 albertel 480: &Apache::lonnet::del('slot_reservations',[$entry],
481: $cdom,$cnum);
482: }
483: }
1.33 albertel 484:
1.59 albertel 485: my $use_slots = &Apache::lonnet::EXT("resource.0.useslots");
486: &Apache::lonxml::debug("use_slots is $use_slots<br />");
487:
1.67 albertel 488: if (&Apache::lonnet::error($use_slots)) {
1.59 albertel 489: return (0,'error: Unable to determine current status');
490: }
491:
492: my $parm_level = 1;
1.66 albertel 493: if ($use_slots eq 'map' || $use_slots eq 'map_map') {
1.59 albertel 494: $parm_level = 2;
495: }
1.5 albertel 496: # store new parameter string
1.6 albertel 497: my $result=&Apache::lonparmset::storeparm_by_symb($symb,
498: '0_availablestudent',
1.59 albertel 499: $parm_level, $new_param,
500: 'string', $uname, $udom);
1.55 albertel 501:
502: my $msg;
1.33 albertel 503: if ($mgr eq 'F') {
1.55 albertel 504: $msg = &mt('Released Reservation for user: [_1]',"$uname:$udom");
505: } else {
506: $msg = &mt('Released Reservation: [_1]',$description);
1.33 albertel 507: }
1.55 albertel 508: return (1,$msg);
1.5 albertel 509: }
510:
1.34 albertel 511: sub delete_slot {
512: my ($r)=@_;
513:
514: my $slot_name = $env{'form.slotname'};
515: my %slot=&Apache::lonnet::get_slot($slot_name);
516:
517: my ($cnum,$cdom)=&get_course();
518: my %consumed=&Apache::lonnet::dump('slot_reservations',$cdom,$cnum,
519: "^$slot_name\0");
1.38 albertel 520: my ($tmp) = %consumed;
521: if ($tmp =~ /error: 2/) { undef(%consumed); }
1.34 albertel 522:
523: if (%slot && !%consumed) {
524: $slot{'type'} = 'deleted';
525: my $ret = &Apache::lonnet::cput('slots', {$slot_name => \%slot},
526: $cdom, $cnum);
527: if ($ret eq 'ok') {
528: $r->print("<p>Slot <tt>$slot_name</tt> marked as deleted.</p>");
529: } else {
1.78 ! albertel 530: $r->print("<p><span class=\"LC_error\"> An error ($ret) occurse when attempting to delete Slot <tt>$slot_name</tt>.</span></p>");
1.34 albertel 531: }
532: } else {
533: if (%consumed) {
534: $r->print("<p>Slot <tt>$slot_name</tt> has active reservations.</p>");
535: } else {
536: $r->print("<p>Slot <tt>$slot_name</tt> does not exist.</p>");
537: }
538: }
539: $r->print('<p><a href="/adm/slotrequest?command=showslots">'.
540: &mt('Return to slot list').'</a></p>');
1.42 albertel 541: &return_link($r);
1.34 albertel 542: }
543:
1.40 albertel 544: sub return_link {
545: my ($r) = @_;
546: $r->print('<p><a href="/adm/flip?postdata=return:">'.
547: &mt('Return to last resource').'</a></p>');
548: }
549:
1.3 albertel 550: sub get_slot {
1.75 albertel 551: my ($r,$symb,$conflictable_slot,$inhibit_return_link)=@_;
1.3 albertel 552:
1.43 albertel 553: my %slot=&Apache::lonnet::get_slot($env{'form.slotname'});
554: my $slot_name=&check_for_conflict($symb,$env{'form.slotname'},\%slot);
1.40 albertel 555:
556: if ($slot_name =~ /^error: (.*)/) {
1.78 ! albertel 557: $r->print("<p><span class=\"LC_error\">An error occured while attempting to make a reservation. ($1)</span></p>");
1.40 albertel 558: &return_link($r);
1.75 albertel 559: return 0;
1.40 albertel 560: }
1.75 albertel 561: if ($slot_name && $slot_name ne $conflictable_slot) {
1.5 albertel 562: my %slot=&Apache::lonnet::get_slot($slot_name);
1.6 albertel 563: my $description1=&get_description($slot_name,\%slot);
564: %slot=&Apache::lonnet::get_slot($env{'form.slotname'});
565: my $description2=&get_description($env{'form.slotname'},\%slot);
566: $r->print("<p>Already have a reservation: $description1</p>");
1.7 albertel 567: if ($slot_name ne $env{'form.slotname'}) {
568: $r->print(<<STUFF);
1.64 albertel 569: <form method="post" action="/adm/slotrequest">
1.6 albertel 570: <input type="hidden" name="symb" value="$env{'form.symb'}" />
571: <input type="hidden" name="slotname" value="$env{'form.slotname'}" />
572: <input type="hidden" name="releaseslot" value="$slot_name" />
573: <input type="hidden" name="command" value="change" />
574: STUFF
1.7 albertel 575: $r->print("<p>You can either ");
576: $r->print(<<STUFF);
1.6 albertel 577: <input type="submit" name="change" value="Change" />
578: STUFF
1.7 albertel 579: $r->print(' your reservation from <b>'.$description1.'</b> to <b>'.
580: $description2.
1.40 albertel 581: '</b> <br />or </p>');
582: &return_link($r);
1.7 albertel 583: $r->print(<<STUFF);
1.6 albertel 584: </form>
585: STUFF
1.7 albertel 586: } else {
1.40 albertel 587: &return_link($r);
1.7 albertel 588: }
1.75 albertel 589: return 0;
1.5 albertel 590: }
1.45 albertel 591:
1.3 albertel 592: my $reserved=&make_reservation($env{'form.slotname'},
593: \%slot,$symb);
594: my $description=&get_description($env{'form.slotname'},\%slot);
1.7 albertel 595: if (defined($reserved)) {
1.75 albertel 596: my $retvalue = 0;
1.40 albertel 597: if ($slot_name =~ /^error: (.*)/) {
1.78 ! albertel 598: $r->print("<p><span class=\"LC_error\">An error occured while attempting to make a reservation. ($1)</span></p>");
1.40 albertel 599: } elsif ($reserved > -1) {
1.7 albertel 600: $r->print("<p>Success: $description</p>");
1.75 albertel 601: $retvalue = 1;
1.7 albertel 602: } elsif ($reserved < 0) {
603: $r->print("<p>Already reserved: $description</p>");
604: }
1.75 albertel 605: if (!$inhibit_return_link) { &return_link($r); }
606: return 1;
1.3 albertel 607: }
608:
1.7 albertel 609: my %lt=('request'=>"Availibility list",
1.3 albertel 610: 'try' =>'Try again');
611: %lt=&Apache::lonlocal::texthash(%lt);
612:
1.75 albertel 613: my $extra_input;
614: if ($conflictable_slot) {
615: $extra_input='<input type="hidden" name="releaseslot" value="'.$env{'form.slotname'}.'" />';
616: }
617:
1.3 albertel 618: $r->print(<<STUFF);
1.78 ! albertel 619: <p> <span class="LC_warning">Failed</span> to reserve a spot for $description. </p>
1.3 albertel 620: <p>
1.64 albertel 621: <form method="post" action="/adm/slotrequest">
1.3 albertel 622: <input type="submit" name="Try Again" value="$lt{'try'}" />
623: <input type="hidden" name="symb" value="$env{'form.symb'}" />
624: <input type="hidden" name="slotname" value="$env{'form.slotname'}" />
1.75 albertel 625: <input type="hidden" name="command" value="$env{'form.command'}" />
626: $extra_input
1.3 albertel 627: </form>
628: ?
629: </p>
630: <p>
631: or
1.64 albertel 632: <form method="post" action="/adm/slotrequest">
1.3 albertel 633: <input type="hidden" name="symb" value="$env{'form.symb'}" />
634: <input type="submit" name="requestattempt" value="$lt{'request'}" />
635: </form>
636: </p>
637: or
638: STUFF
1.42 albertel 639:
1.75 albertel 640: if (!$inhibit_return_link) { &return_link($r); }
641: return 0;
1.3 albertel 642: }
643:
644: sub allowed_slot {
1.48 albertel 645: my ($slot_name,$slot,$symb,$slots,$consumed_uniqueperiods)=@_;
1.49 albertel 646:
1.3 albertel 647: #already started
648: if ($slot->{'starttime'} < time) {
1.76 albertel 649: return 0;
1.3 albertel 650: }
1.5 albertel 651: &Apache::lonxml::debug("$slot_name starttime good");
1.49 albertel 652:
1.3 albertel 653: #already ended
654: if ($slot->{'endtime'} < time) {
655: return 0;
656: }
1.5 albertel 657: &Apache::lonxml::debug("$slot_name endtime good");
1.49 albertel 658:
1.3 albertel 659: # not allowed to pick this one
660: if (defined($slot->{'type'})
661: && $slot->{'type'} ne 'schedulable_student') {
662: return 0;
663: }
1.5 albertel 664: &Apache::lonxml::debug("$slot_name type good");
1.49 albertel 665:
1.53 albertel 666: # reserve time not yet started
667: if ($slot->{'startreserve'} > time) {
668: return 0;
669: }
670: &Apache::lonxml::debug("$slot_name reserve good");
671:
1.50 albertel 672: my $userallowed=0;
1.49 albertel 673: # its for a different set of users
1.50 albertel 674: if (defined($slot->{'allowedsections'})) {
675: if (!defined($env{'request.role.sec'})
676: && grep(/^No section assigned$/,
677: split(',',$slot->{'allowedsections'}))) {
678: $userallowed=1;
679: }
680: if (defined($env{'request.role.sec'})
681: && grep(/^\Q$env{'request.role.sec'}\E$/,
682: split(',',$slot->{'allowedsections'}))) {
683: $userallowed=1;
684: }
1.68 albertel 685: if (defined($env{'request.course.groups'})) {
686: my @groups = split(/:/,$env{'request.course.groups'});
687: my @allowed_sec = split(',',$slot->{'allowedsections'});
688: foreach my $group (@groups) {
689: if (grep {$_ eq $group} (@allowed_sec)) {
690: $userallowed=1;
691: last;
692: }
693: }
694: }
1.49 albertel 695: }
1.50 albertel 696: &Apache::lonxml::debug("$slot_name sections is $userallowed");
1.49 albertel 697:
698: # its for a different set of users
1.50 albertel 699: if (defined($slot->{'allowedusers'})
700: && grep(/^\Q$env{'user.name'}:$env{'user.domain'}\E$/,
701: split(',',$slot->{'allowedusers'}))) {
702: $userallowed=1;
1.49 albertel 703: }
1.51 albertel 704:
705: if (!defined($slot->{'allowedusers'})
706: && !defined($slot->{'allowedsections'})) {
707: $userallowed=1;
708: }
709:
1.50 albertel 710: &Apache::lonxml::debug("$slot_name user is $userallowed");
711: return 0 if (!$userallowed);
1.49 albertel 712:
1.3 albertel 713: # not allowed for this resource
714: if (defined($slot->{'symb'})
715: && $slot->{'symb'} ne $symb) {
716: return 0;
717: }
1.50 albertel 718:
1.48 albertel 719: my $conflict = &check_for_conflict($symb,$slot_name,$slot,$slots,
720: $consumed_uniqueperiods);
1.44 albertel 721: if ($conflict) {
722: if ($slots->{$conflict}{'starttime'} < time) {
723: return 0;
724: }
725: }
1.5 albertel 726: &Apache::lonxml::debug("$slot_name symb good");
1.3 albertel 727: return 1;
1.2 albertel 728: }
729:
1.3 albertel 730: sub get_description {
731: my ($slot_name,$slot)=@_;
732: my $description=$slot->{'description'};
733: if (!defined($description)) {
1.4 albertel 734: $description=&mt('[_1] From [_2] to [_3]',$slot_name,
1.3 albertel 735: &Apache::lonlocal::locallocaltime($slot->{'starttime'}),
736: &Apache::lonlocal::locallocaltime($slot->{'endtime'}));
737: }
738: return $description;
739: }
1.2 albertel 740:
741: sub show_choices {
742: my ($r,$symb)=@_;
743:
744: my ($cnum,$cdom)=&get_course();
745: my %slots=&Apache::lonnet::dump('slots',$cdom,$cnum);
1.48 albertel 746: my $consumed_uniqueperiods = &get_consumed_uniqueperiods(\%slots);
1.3 albertel 747: my $available;
1.2 albertel 748: $r->print('<table border="1">');
1.5 albertel 749: &Apache::lonxml::debug("Checking Slots");
1.43 albertel 750: my @got_slots=&check_for_reservation($symb,'allslots');
1.2 albertel 751: foreach my $slot (sort
752: { return $slots{$a}->{'starttime'} <=> $slots{$b}->{'starttime'} }
753: (keys(%slots))) {
1.5 albertel 754:
755: &Apache::lonxml::debug("Checking Slot $slot");
1.48 albertel 756: next if (!&allowed_slot($slot,$slots{$slot},undef,\%slots,
757: $consumed_uniqueperiods));
1.3 albertel 758:
759: $available++;
760:
761: my $description=&get_description($slot,$slots{$slot});
1.2 albertel 762:
763: my $form=&mt('Unavailable');
1.43 albertel 764: if ((grep(/^\Q$slot\E$/,@got_slots)) ||
1.7 albertel 765: &space_available($slot,$slots{$slot},$symb)) {
1.5 albertel 766: my $text=&mt('Select');
767: my $command='get';
1.43 albertel 768: if (grep(/^\Q$slot\E$/,@got_slots)) {
1.70 albertel 769: $text=&mt('Drop Reservation');
1.5 albertel 770: $command='release';
1.43 albertel 771: } else {
772: my $conflict = &check_for_conflict($symb,$slot,$slots{$slot},
1.48 albertel 773: \%slots,
774: $consumed_uniqueperiods);
1.43 albertel 775: if ($conflict) {
776: $text=&mt('Change Reservation');
777: $command='get';
778: }
1.5 albertel 779: }
1.63 www 780: my $escsymb=&escape($symb);
1.2 albertel 781: $form=<<STUFF;
1.64 albertel 782: <form method="post" action="/adm/slotrequest">
1.5 albertel 783: <input type="submit" name="Select" value="$text" />
1.3 albertel 784: <input type="hidden" name="symb" value="$escsymb" />
785: <input type="hidden" name="slotname" value="$slot" />
1.5 albertel 786: <input type="hidden" name="command" value="$command" />
1.2 albertel 787: </form>
788: STUFF
789: }
790: $r->print(<<STUFF);
791: <tr>
792: <td>$form</td>
793: <td>$description</td>
794: </tr>
795: STUFF
796: }
1.3 albertel 797:
798: if (!$available) {
1.5 albertel 799: $r->print('<tr><td>No available times. <a href="/adm/flip?postdata=return:">'.
1.3 albertel 800: &mt('Return to last resource').'</a></td></tr>');
801: }
1.2 albertel 802: $r->print('</table>');
803: }
804:
1.30 albertel 805: sub to_show {
1.54 albertel 806: my ($slotname,$slot,$when,$deleted,$name) = @_;
1.30 albertel 807: my $time=time;
808: my $week=60*60*24*7;
1.54 albertel 809:
1.35 albertel 810: if ($deleted eq 'hide' && $slot->{'type'} eq 'deleted') {
811: return 0;
812: }
1.54 albertel 813:
814: if ($name && $name->{'value'} =~ /\w/) {
815: if ($name->{'type'} eq 'substring') {
816: if ($slotname !~ /\Q$name->{'value'}\E/) {
817: return 0;
818: }
819: }
820: if ($name->{'type'} eq 'exact') {
821: if ($slotname eq $name->{'value'}) {
822: return 0;
823: }
824: }
825: }
826:
1.35 albertel 827: if ($when eq 'any') {
828: return 1;
829: } elsif ($when eq 'now') {
1.30 albertel 830: if ($time > $slot->{'starttime'} &&
831: $time < $slot->{'endtime'}) {
832: return 1;
833: }
834: return 0;
835: } elsif ($when eq 'nextweek') {
836: if ( ($time < $slot->{'starttime'} &&
837: ($time+$week) > $slot->{'starttime'})
838: ||
839: ($time < $slot->{'endtime'} &&
840: ($time+$week) > $slot->{'endtime'}) ) {
841: return 1;
842: }
843: return 0;
844: } elsif ($when eq 'lastweek') {
845: if ( ($time > $slot->{'starttime'} &&
846: ($time-$week) < $slot->{'starttime'})
847: ||
848: ($time > $slot->{'endtime'} &&
849: ($time-$week) < $slot->{'endtime'}) ) {
850: return 1;
851: }
852: return 0;
853: } elsif ($when eq 'willopen') {
854: if ($time < $slot->{'starttime'}) {
855: return 1;
856: }
857: return 0;
858: } elsif ($when eq 'wereopen') {
859: if ($time > $slot->{'endtime'}) {
860: return 1;
861: }
862: return 0;
863: }
864:
865: return 1;
866: }
867:
1.33 albertel 868: sub remove_link {
869: my ($slotname,$entry,$uname,$udom,$symb) = @_;
870:
1.55 albertel 871: my $remove = &mt('Remove');
872:
873: if ($entry eq 'remove all') {
874: $remove = &mt('Remove All');
875: undef($uname);
876: undef($udom);
877: }
878:
1.63 www 879: $slotname = &escape($slotname);
880: $entry = &escape($entry);
881: $uname = &escape($uname);
882: $udom = &escape($udom);
883: $symb = &escape($symb);
1.33 albertel 884:
885: return <<"END_LINK";
1.64 albertel 886: <a href="/adm/slotrequest?command=remove_registration&slotname=$slotname&entry=$entry&uname=$uname&udom=$udom&symb=$symb"
1.33 albertel 887: >($remove)</a>
888: END_LINK
889:
890: }
891:
1.5 albertel 892: sub show_table {
1.19 albertel 893: my ($r,$mgr)=@_;
1.5 albertel 894:
895: my ($cnum,$cdom)=&get_course();
896: my %slots=&Apache::lonnet::dump('slots',$cdom,$cnum);
1.19 albertel 897: if ( (keys(%slots))[0] =~ /^error: 2 /) {
898: undef(%slots);
899: }
1.5 albertel 900: my $available;
1.14 albertel 901: if ($mgr eq 'F') {
1.72 rezaferr 902: # FIXME: This line should be deleted once Slots uses breadcrumbs
1.73 albertel 903: $r->print(&Apache::loncommon::help_open_topic('Slot About', 'Help on slots'));
1.72 rezaferr 904:
1.30 albertel 905: $r->print('<div>');
1.64 albertel 906: $r->print('<form method="post" action="/adm/slotrequest">
1.14 albertel 907: <input type="hidden" name="command" value="uploadstart" />
908: <input type="submit" name="start" value="'.&mt('Upload Slot List').'" />
909: </form>');
1.72 rezaferr 910: $r->print(&Apache::loncommon::help_open_topic('Slot CommaDelimited'));
1.64 albertel 911: $r->print('<form method="post" action="/adm/helper/newslot.helper">
1.28 albertel 912: <input type="submit" name="newslot" value="'.&mt('Create a New Slot').'" />
913: </form>');
1.72 rezaferr 914: $r->print(&Apache::loncommon::help_open_topic('Slot AddInterface'));
1.30 albertel 915: $r->print('</div>');
1.14 albertel 916: }
1.29 albertel 917:
1.54 albertel 918: my %Saveable_Parameters = ('show' => 'array',
919: 'when' => 'scalar',
920: 'order' => 'scalar',
921: 'deleted' => 'scalar',
922: 'name_filter_type' => 'scalar',
923: 'name_filter_value' => 'scalar',
1.35 albertel 924: );
1.46 albertel 925: &Apache::loncommon::store_course_settings('slotrequest',
926: \%Saveable_Parameters);
927: &Apache::loncommon::restore_course_settings('slotrequest',
928: \%Saveable_Parameters);
929: &Apache::grades::init_perm();
930: my ($classlist,$section,$fullname)=&Apache::grades::getclasslist('all');
931: &Apache::grades::reset_perm();
1.29 albertel 932:
1.54 albertel 933: # what to display filtering
1.30 albertel 934: my %show_fields=&Apache::lonlocal::texthash(
1.49 albertel 935: 'name' => 'Slot Name',
936: 'description' => 'Description',
937: 'type' => 'Type',
938: 'starttime' => 'Start time',
939: 'endtime' => 'End Time',
940: 'startreserve' => 'Time students can start reserving',
941: 'secret' => 'Secret Word',
1.74 albertel 942: 'space' => '# of students/max',
1.49 albertel 943: 'ip' => 'IP or DNS restrictions',
944: 'symb' => 'Resource slot is restricted to.',
945: 'allowedsections' => 'Sections slot is restricted to.',
946: 'allowedusers' => 'Users slot is restricted to.',
947: 'uniqueperiod' => 'Period of time slot is unique',
948: 'scheduled' => 'Scheduled Students',
949: 'proctor' => 'List of proctors');
1.30 albertel 950: my @show_order=('name','description','type','starttime','endtime',
1.74 albertel 951: 'startreserve','secret','space','ip','symb',
1.49 albertel 952: 'allowedsections','allowedusers','uniqueperiod',
953: 'scheduled','proctor');
1.30 albertel 954: my @show =
1.29 albertel 955: (exists($env{'form.show'})) ? &Apache::loncommon::get_env_multiple('form.show')
1.30 albertel 956: : keys(%show_fields);
957: my %show = map { $_ => 1 } (@show);
958:
1.54 albertel 959: #when filtering setup
1.30 albertel 960: my %when_fields=&Apache::lonlocal::texthash(
1.35 albertel 961: 'now' => 'Open now',
1.30 albertel 962: 'nextweek' => 'Open within the next week',
963: 'lastweek' => 'Were open last week',
964: 'willopen' => 'Will open later',
1.35 albertel 965: 'wereopen' => 'Were open',
966: 'any' => 'Anytime',
967: );
968: my @when_order=('any','now','nextweek','lastweek','willopen','wereopen');
1.30 albertel 969: $when_fields{'select_form_order'} = \@when_order;
970: my $when = (exists($env{'form.when'})) ? $env{'form.when'}
971: : 'now';
1.29 albertel 972:
1.54 albertel 973: #display of students setup
1.46 albertel 974: my %stu_display_fields=
975: &Apache::lonlocal::texthash('username' => 'User name',
976: 'fullname' => 'Full name',
977: );
978: my @stu_display_order=('fullname','username');
979: my @stu_display =
980: (exists($env{'form.studisplay'})) ? &Apache::loncommon::get_env_multiple('form.studisplay')
981: : keys(%stu_display_fields);
982: my %stu_display = map { $_ => 1 } (@stu_display);
983:
1.54 albertel 984: #name filtering setup
985: my %name_filter_type_fields=
986: &Apache::lonlocal::texthash('substring' => 'Substring',
987: 'exact' => 'Exact',
988: #'reg' => 'Regular Expression',
989: );
990: my @name_filter_type_order=('substring','exact');
991:
992: $name_filter_type_fields{'select_form_order'} = \@name_filter_type_order;
993: my $name_filter_type =
994: (exists($env{'form.name_filter_type'})) ? $env{'form.name_filter_type'}
995: : 'substring';
996: my $name_filter = {'type' => $name_filter_type,
997: 'value' => $env{'form.name_filter_value'},};
998:
1.64 albertel 999:
1.54 albertel 1000: #deleted slot filtering
1.64 albertel 1001: #default to hide if no value
1002: $env{'form.deleted'} ||= 'hide';
1.35 albertel 1003: my $hide_radio =
1004: &Apache::lonhtmlcommon::radio('deleted',$env{'form.deleted'},'hide');
1005: my $show_radio =
1006: &Apache::lonhtmlcommon::radio('deleted',$env{'form.deleted'},'show');
1007:
1.64 albertel 1008: $r->print('<form method="post" action="/adm/slotrequest">
1.30 albertel 1009: <input type="hidden" name="command" value="showslots" />');
1010: $r->print('<div>');
1.35 albertel 1011: $r->print('<table class="inline">
1012: <tr><th>'.&mt('Show').'</th>
1.46 albertel 1013: <th>'.&mt('Student Display').'</th>
1.35 albertel 1014: <th>'.&mt('Open').'</th>
1.54 albertel 1015: <th>'.&mt('Slot Name Filter').'</th>
1.35 albertel 1016: <th>'.&mt('Options').'</th>
1017: </tr>
1018: <tr><td>'.&Apache::loncommon::multiple_select_form('show',\@show,6,\%show_fields,\@show_order).
1019: '</td>
1.46 albertel 1020: <td>
1021: '.&Apache::loncommon::multiple_select_form('studisplay',\@stu_display,
1022: 6,\%stu_display_fields,
1023: \@stu_display_order).'
1024: </td>
1.35 albertel 1025: <td>'.&Apache::loncommon::select_form($when,'when',%when_fields).
1026: '</td>
1.54 albertel 1027: <td>'.&Apache::loncommon::select_form($name_filter_type,
1028: 'name_filter_type',
1029: %name_filter_type_fields).
1030: '<br />'.
1031: &Apache::lonhtmlcommon::textbox('name_filter_value',
1032: $env{'form.name_filter_value'},
1033: 15).
1034: '</td>
1.35 albertel 1035: <td>
1036: <table>
1037: <tr>
1038: <td rowspan="2">Deleted slots:</td>
1039: <td><label>'.$show_radio.'Show</label></td>
1040: </tr>
1041: <tr>
1042: <td><label>'.$hide_radio.'Hide</label></td>
1043: </tr>
1044: </table>
1045: </td>
1046: </tr>
1047: </table>');
1.30 albertel 1048: $r->print('</div>');
1049: $r->print('<p><input type="submit" name="start" value="'.&mt('Update Display').'" /></p>');
1.21 albertel 1050: my $linkstart='<a href="/adm/slotrequest?command=showslots&order=';
1.65 albertel 1051: $r->print(&Apache::loncommon::start_data_table().
1052: &Apache::loncommon::start_data_table_header_row().'
1053: <th></th>');
1.30 albertel 1054: foreach my $which (@show_order) {
1055: if ($which ne 'proctor' && exists($show{$which})) {
1056: $r->print('<th>'.$linkstart.$which.'">'.$show_fields{$which}.'</a></th>');
1.29 albertel 1057: }
1058: }
1.65 albertel 1059: $r->print(&Apache::loncommon::end_data_table_header_row());
1.29 albertel 1060:
1.21 albertel 1061: my %name_cache;
1062: my $slotsort = sub {
1.74 albertel 1063: if ($env{'form.order'}=~/^(type|description|endtime|startreserve|ip|symb|allowedsections|allowedusers)$/) {
1.21 albertel 1064: if (lc($slots{$a}->{$env{'form.order'}})
1065: ne lc($slots{$b}->{$env{'form.order'}})) {
1066: return (lc($slots{$a}->{$env{'form.order'}})
1067: cmp lc($slots{$b}->{$env{'form.order'}}));
1068: }
1.74 albertel 1069: } elsif ($env{'form.order'} eq 'space') {
1070: if ($slots{$a}{'maxspace'} ne $slots{$b}{'maxspace'}) {
1071: return ($slots{$a}{'maxspace'} cmp $slots{$b}{'maxspace'});
1072: }
1.23 albertel 1073: } elsif ($env{'form.order'} eq 'name') {
1074: if (lc($a) cmp lc($b)) {
1075: return lc($a) cmp lc($b);
1076: }
1.29 albertel 1077: } elsif ($env{'form.order'} eq 'uniqueperiod') {
1.21 albertel 1078:
1079: if ($slots{$a}->{'uniqueperiod'}[0]
1080: ne $slots{$b}->{'uniqueperiod'}[0]) {
1081: return ($slots{$a}->{'uniqueperiod'}[0]
1082: cmp $slots{$b}->{'uniqueperiod'}[0]);
1083: }
1084: if ($slots{$a}->{'uniqueperiod'}[1]
1085: ne $slots{$b}->{'uniqueperiod'}[1]) {
1086: return ($slots{$a}->{'uniqueperiod'}[1]
1087: cmp $slots{$b}->{'uniqueperiod'}[1]);
1088: }
1089: }
1090: return $slots{$a}->{'starttime'} <=> $slots{$b}->{'starttime'};
1091: };
1.74 albertel 1092:
1093: my %consumed;
1094: if (exists($show{'scheduled'}) || exists($show{'space'}) ) {
1095: %consumed=&Apache::lonnet::dump('slot_reservations',$cdom,$cnum);
1096: my ($tmp)=%consumed;
1097: if ($tmp =~ /^error: /) { undef(%consumed); }
1098: }
1099:
1.21 albertel 1100: foreach my $slot (sort $slotsort (keys(%slots))) {
1.54 albertel 1101: if (!&to_show($slot,$slots{$slot},$when,
1102: $env{'form.deleted'},$name_filter)) { next; }
1.5 albertel 1103: if (defined($slots{$slot}->{'type'})
1104: && $slots{$slot}->{'type'} ne 'schedulable_student') {
1.13 albertel 1105: #next;
1.5 albertel 1106: }
1107: my $description=&get_description($slot,$slots{$slot});
1.74 albertel 1108: my ($id_count,$ids);
1109:
1110: if (exists($show{'scheduled'}) || exists($show{'space'}) ) {
1111: my @this_slot = grep(/^$slot\0/,keys(%consumed));
1112: $id_count = scalar(@this_slot);
1113: if (exists($show{'scheduled'})) {
1.54 albertel 1114: foreach my $entry (sort { $consumed{$a}{name} cmp
1115: $consumed{$b}{name} }
1116: (keys(%consumed))) {
1.47 albertel 1117: my (undef,$id)=split("\0",$entry);
1.57 albertel 1118: my ($uname,$udom) = split(':',$consumed{$entry}{'name'});
1.47 albertel 1119: $ids.= '<nobr>';
1120: foreach my $item (@stu_display_order) {
1121: if ($stu_display{$item}) {
1122: if ($item eq 'fullname') {
1123: $ids.=$fullname->{"$uname:$udom"}.' ';
1124: } elsif ($item eq 'username') {
1.57 albertel 1125: $ids.="<tt>$uname:$udom</tt> ";
1.47 albertel 1126: }
1.46 albertel 1127: }
1128: }
1.47 albertel 1129: $ids.=&remove_link($slot,$entry,$uname,$udom,
1130: $consumed{$entry}{'symb'}).'</nobr><br />';
1.46 albertel 1131: }
1.38 albertel 1132: }
1.5 albertel 1133: }
1.33 albertel 1134:
1.24 albertel 1135: my $start=($slots{$slot}->{'starttime'}?
1136: &Apache::lonlocal::locallocaltime($slots{$slot}->{'starttime'}):'');
1137: my $end=($slots{$slot}->{'endtime'}?
1138: &Apache::lonlocal::locallocaltime($slots{$slot}->{'endtime'}):'');
1.28 albertel 1139: my $start_reserve=($slots{$slot}->{'startreserve'}?
1.24 albertel 1140: &Apache::lonlocal::locallocaltime($slots{$slot}->{'startreserve'}):'');
1141:
1.14 albertel 1142: my $unique;
1143: if (ref($slots{$slot}{'uniqueperiod'})) {
1.64 albertel 1144: $unique=localtime($slots{$slot}{'uniqueperiod'}[0]).', '.
1.14 albertel 1145: localtime($slots{$slot}{'uniqueperiod'}[1]);
1146: }
1.33 albertel 1147:
1.29 albertel 1148: my $title;
1149: if (exists($slots{$slot}{'symb'})) {
1150: my (undef,undef,$res)=
1151: &Apache::lonnet::decode_symb($slots{$slot}{'symb'});
1152: $res = &Apache::lonnet::clutter($res);
1153: $title = &Apache::lonnet::gettitle($slots{$slot}{'symb'});
1154: $title='<a href="'.$res.'?symb='.$slots{$slot}{'symb'}.'">'.$title.'</a>';
1155: }
1.33 albertel 1156:
1.49 albertel 1157: my $allowedsections;
1158: if (exists($show{'allowedsections'})) {
1159: $allowedsections =
1160: join(', ',sort(split(/\s*,\s*/,
1161: $slots{$slot}->{'allowedsections'})));
1162: }
1163:
1164: my @allowedusers;
1165: if (exists($show{'allowedusers'})) {
1166: @allowedusers= map {
1167: my ($uname,$udom)=split(/:/,$_);
1168: my $fullname=$name_cache{$_};
1169: if (!defined($fullname)) {
1170: $fullname = &Apache::loncommon::plainname($uname,$udom);
1171: $fullname =~s/\s/ /g;
1172: $name_cache{$_} = $fullname;
1173: }
1174: &Apache::loncommon::aboutmewrapper($fullname,$uname,$udom);
1175: } (sort(split(/\s*,\s*/,$slots{$slot}->{'allowedusers'})));
1176: }
1177: my $allowedusers=join(', ',@allowedusers);
1178:
1.29 albertel 1179: my @proctors;
1180: my $rowspan=1;
1181: my $colspan=1;
1.30 albertel 1182: if (exists($show{'proctor'})) {
1.29 albertel 1183: $rowspan=2;
1184: @proctors= map {
1.62 albertel 1185: my ($uname,$udom)=split(/:/,$_);
1.29 albertel 1186: my $fullname=$name_cache{$_};
1187: if (!defined($fullname)) {
1188: $fullname = &Apache::loncommon::plainname($uname,$udom);
1189: $fullname =~s/\s/ /g;
1190: $name_cache{$_} = $fullname;
1191: }
1192: &Apache::loncommon::aboutmewrapper($fullname,$uname,$udom);
1193: } (sort(split(/\s*,\s*/,$slots{$slot}->{'proctor'})));
1194: }
1.20 albertel 1195: my $proctors=join(', ',@proctors);
1.14 albertel 1196:
1.34 albertel 1197: my $edit=(<<"EDITLINK");
1.31 albertel 1198: <a href="/adm/helper/newslot.helper?name=$slot">Edit</a>
1199: EDITLINK
1.34 albertel 1200:
1201: my $delete=(<<"DELETELINK");
1.64 albertel 1202: <a href="/adm/slotrequest?command=delete&slotname=$slot">Delete</a>
1.34 albertel 1203: DELETELINK
1.55 albertel 1204:
1.56 albertel 1205: my $remove_all=&remove_link($slot,'remove all').'<br />';
1.55 albertel 1206:
1.34 albertel 1207: if ($ids ne '') { undef($delete); }
1.56 albertel 1208: if ($slots{$slot}{'type'} ne 'schedulable_student'
1209: || $ids eq '') {
1.55 albertel 1210: undef($remove_all);
1211: }
1.34 albertel 1212:
1.65 albertel 1213: my $row_start=&Apache::loncommon::start_data_table_row();
1214: my $row_end=&Apache::loncommon::end_data_table_row();
1215: $r->print($row_start.
1216: "\n<td rowspan=\"$rowspan\">$edit $delete</td>\n");
1.30 albertel 1217: if (exists($show{'name'})) {
1.29 albertel 1218: $colspan++;$r->print("<td>$slot</td>");
1219: }
1.33 albertel 1220: if (exists($show{'description'})) {
1221: $colspan++;$r->print("<td>$description</td>\n");
1222: }
1.30 albertel 1223: if (exists($show{'type'})) {
1.29 albertel 1224: $colspan++;$r->print("<td>$slots{$slot}->{'type'}</td>\n");
1225: }
1.30 albertel 1226: if (exists($show{'starttime'})) {
1.29 albertel 1227: $colspan++;$r->print("<td>$start</td>\n");
1228: }
1.30 albertel 1229: if (exists($show{'endtime'})) {
1.29 albertel 1230: $colspan++;$r->print("<td>$end</td>\n");
1231: }
1.30 albertel 1232: if (exists($show{'startreserve'})) {
1.29 albertel 1233: $colspan++;$r->print("<td>$start_reserve</td>\n");
1234: }
1.30 albertel 1235: if (exists($show{'secret'})) {
1.29 albertel 1236: $colspan++;$r->print("<td>$slots{$slot}{'secret'}</td>\n");
1237: }
1.74 albertel 1238: if (exists($show{'space'})) {
1239: my $display = $id_count;
1240: if ($slots{$slot}{'maxspace'}>0) {
1241: $display.='/'.$slots{$slot}{'maxspace'};
1242: if ($slots{$slot}{'maxspace'} <= $id_count) {
1243: $display = '<strong>'.$display.' (full) </strong>';
1244: }
1245: }
1246: $colspan++;$r->print("<td>$display</td>\n");
1.29 albertel 1247: }
1.30 albertel 1248: if (exists($show{'ip'})) {
1.29 albertel 1249: $colspan++;$r->print("<td>$slots{$slot}{'ip'}</td>\n");
1250: }
1.30 albertel 1251: if (exists($show{'symb'})) {
1.29 albertel 1252: $colspan++;$r->print("<td>$title</td>\n");
1253: }
1.49 albertel 1254: if (exists($show{'allowedsections'})) {
1255: $colspan++;$r->print("<td>$allowedsections</td>\n");
1256: }
1257: if (exists($show{'allowedusers'})) {
1258: $colspan++;$r->print("<td>$allowedusers</td>\n");
1.29 albertel 1259: }
1.64 albertel 1260: if (exists($show{'uniqueperiod'})) {
1261: $colspan++;$r->print("<td>$unique</td>\n");
1262: }
1.47 albertel 1263: if (exists($show{'scheduled'})) {
1.64 albertel 1264: $colspan++;$r->print("<td>$remove_all $ids</td>\n");
1.47 albertel 1265: }
1.65 albertel 1266: $r->print("$row_end\n");
1.30 albertel 1267: if (exists($show{'proctor'})) {
1.29 albertel 1268: $r->print(<<STUFF);
1.65 albertel 1269: $row_start
1.29 albertel 1270: <td colspan="$colspan">$proctors</td>
1.65 albertel 1271: $row_end
1.5 albertel 1272: STUFF
1.29 albertel 1273: }
1.5 albertel 1274: }
1.64 albertel 1275: $r->print('</table></form>');
1.5 albertel 1276: }
1277:
1.14 albertel 1278: sub upload_start {
1.19 albertel 1279: my ($r)=@_;
1.14 albertel 1280: $r->print(&Apache::grades::checkforfile_js());
1281: my $result.='<table width=100% border=0><tr bgcolor="#e6ffff"><td>'."\n";
1282: $result.=' <b>'.
1283: &mt('Specify a file containing the slot definitions.').
1284: '</b></td></tr>'."\n";
1285: $result.='<tr bgcolor=#ffffe6><td>'."\n";
1286: my $upfile_select=&Apache::loncommon::upfile_select_html();
1287: my $ignore=&mt('Ignore First Line');
1288: $result.=<<ENDUPFORM;
1289: <form method="post" enctype="multipart/form-data" action="/adm/slotrequest" name="slotupload">
1290: <input type="hidden" name="command" value="csvuploadmap" />
1291: $upfile_select
1292: <br /><input type="button" onClick="javascript:checkUpload(this.form);" value="Upload Data" />
1293: <label><input type="checkbox" name="noFirstLine" />$ignore</label>
1294: </form>
1295: ENDUPFORM
1296: $result.='</td></tr></table>'."\n";
1297: $result.='</td></tr></table>'."\n";
1298: $r->print($result);
1299: }
1300:
1301: sub csvuploadmap_header {
1.19 albertel 1302: my ($r,$datatoken,$distotal)= @_;
1.14 albertel 1303: my $javascript;
1304: if ($env{'form.upfile_associate'} eq 'reverse') {
1305: $javascript=&csvupload_javascript_reverse_associate();
1306: } else {
1307: $javascript=&csvupload_javascript_forward_associate();
1308: }
1309:
1310: my $checked=(($env{'form.noFirstLine'})?' checked="checked"':'');
1311: my $ignore=&mt('Ignore First Line');
1.72 rezaferr 1312: my $help_field = &Apache::loncommon::help_open_topic('Slot SelectingField');
1313:
1.14 albertel 1314: $r->print(<<ENDPICK);
1315: <form method="post" enctype="multipart/form-data" action="/adm/slotrequest" name="slotupload">
1.72 rezaferr 1316: <h3>Identify fields $help_field</h3>
1.14 albertel 1317: Total number of records found in file: $distotal <hr />
1318: Enter as many fields as you can. The system will inform you and bring you back
1319: to this page if the data selected is insufficient to create the slots.<hr />
1320: <input type="button" value="Reverse Association" onClick="javascript:this.form.associate.value='Reverse Association';submit(this.form);" />
1321: <label><input type="checkbox" name="noFirstLine" $checked />$ignore</label>
1322: <input type="hidden" name="associate" value="" />
1323: <input type="hidden" name="datatoken" value="$datatoken" />
1324: <input type="hidden" name="fileupload" value="$env{'form.fileupload'}" />
1325: <input type="hidden" name="upfiletype" value="$env{'form.upfiletype'}" />
1326: <input type="hidden" name="upfile_associate"
1327: value="$env{'form.upfile_associate'}" />
1328: <input type="hidden" name="command" value="csvuploadassign" />
1329: <hr />
1330: <script type="text/javascript" language="Javascript">
1331: $javascript
1332: </script>
1333: ENDPICK
1334: return '';
1335:
1336: }
1337:
1338: sub csvuploadmap_footer {
1339: my ($request,$i,$keyfields) =@_;
1340: $request->print(<<ENDPICK);
1341: </table>
1342: <input type="hidden" name="nfields" value="$i" />
1343: <input type="hidden" name="keyfields" value="$keyfields" />
1344: <input type="button" onClick="javascript:verify(this.form)" value="Create Slots" /><br />
1345: </form>
1346: ENDPICK
1347: }
1348:
1349: sub csvupload_javascript_reverse_associate {
1350: my $error1=&mt('You need to specify the name, starttime, endtime and a type');
1351: return(<<ENDPICK);
1352: function verify(vf) {
1353: var foundstart=0;
1354: var foundend=0;
1355: var foundname=0;
1356: var foundtype=0;
1357: for (i=0;i<=vf.nfields.value;i++) {
1358: tw=eval('vf.f'+i+'.selectedIndex');
1359: if (i==0 && tw!=0) { foundname=1; }
1360: if (i==1 && tw!=0) { foundtype=1; }
1361: if (i==2 && tw!=0) { foundstat=1; }
1362: if (i==3 && tw!=0) { foundend=1; }
1363: }
1364: if (foundstart==0 && foundend==0 && foundtype==0 && foundname==0) {
1365: alert('$error1');
1366: return;
1367: }
1368: vf.submit();
1369: }
1370: function flip(vf,tf) {
1371: }
1372: ENDPICK
1373: }
1374:
1375: sub csvupload_javascript_forward_associate {
1376: my $error1=&mt('You need to specify the name, starttime, endtime and a type');
1377: return(<<ENDPICK);
1378: function verify(vf) {
1379: var foundstart=0;
1380: var foundend=0;
1381: var foundname=0;
1382: var foundtype=0;
1383: for (i=0;i<=vf.nfields.value;i++) {
1384: tw=eval('vf.f'+i+'.selectedIndex');
1385: if (tw==1) { foundname=1; }
1386: if (tw==2) { foundtype=1; }
1387: if (tw==3) { foundstat=1; }
1388: if (tw==4) { foundend=1; }
1389: }
1390: if (foundstart==0 && foundend==0 && foundtype==0 && foundname==0) {
1391: alert('$error1');
1392: return;
1393: }
1394: vf.submit();
1395: }
1396: function flip(vf,tf) {
1397: }
1398: ENDPICK
1399: }
1400:
1401: sub csv_upload_map {
1.19 albertel 1402: my ($r)= @_;
1.14 albertel 1403:
1404: my $datatoken;
1405: if (!$env{'form.datatoken'}) {
1406: $datatoken=&Apache::loncommon::upfile_store($r);
1407: } else {
1408: $datatoken=$env{'form.datatoken'};
1409: &Apache::loncommon::load_tmp_file($r);
1410: }
1411: my @records=&Apache::loncommon::upfile_record_sep();
1412: if ($env{'form.noFirstLine'}) { shift(@records); }
1.19 albertel 1413: &csvuploadmap_header($r,$datatoken,$#records+1);
1.14 albertel 1414: my ($i,$keyfields);
1415: if (@records) {
1416: my @fields=&csvupload_fields();
1417:
1418: if ($env{'form.upfile_associate'} eq 'reverse') {
1419: &Apache::loncommon::csv_print_samples($r,\@records);
1420: $i=&Apache::loncommon::csv_print_select_table($r,\@records,
1421: \@fields);
1422: foreach (@fields) { $keyfields.=$_->[0].','; }
1423: chop($keyfields);
1424: } else {
1425: unshift(@fields,['none','']);
1426: $i=&Apache::loncommon::csv_samples_select_table($r,\@records,
1427: \@fields);
1428: my %sone=&Apache::loncommon::record_sep($records[0]);
1429: $keyfields=join(',',sort(keys(%sone)));
1430: }
1431: }
1432: &csvuploadmap_footer($r,$i,$keyfields);
1433:
1434: return '';
1435: }
1436:
1437: sub csvupload_fields {
1438: return (['name','Slot name'],
1439: ['type','Type of slot'],
1440: ['starttime','Start Time of slot'],
1441: ['endtime','End Time of slot'],
1.15 albertel 1442: ['startreserve','Reservation Start Time'],
1.14 albertel 1443: ['ip','IP or DNS restriction'],
1444: ['proctor','List of proctor ids'],
1445: ['description','Slot Description'],
1446: ['maxspace','Maximum number of reservations'],
1447: ['symb','Resource Restriction'],
1448: ['uniqueperiod','Date range of slot exclusion'],
1.49 albertel 1449: ['secret','Secret word proctor uses to validate'],
1450: ['allowedsections','Sections slot is restricted to'],
1451: ['allowedusers','Users slot is restricted to'],
1452: );
1.14 albertel 1453: }
1454:
1455: sub csv_upload_assign {
1.19 albertel 1456: my ($r,$mgr)= @_;
1.14 albertel 1457: &Apache::loncommon::load_tmp_file($r);
1458: my @slotdata = &Apache::loncommon::upfile_record_sep();
1459: if ($env{'form.noFirstLine'}) { shift(@slotdata); }
1460: my %fields=&Apache::grades::get_fields();
1461: $r->print('<h3>Creating Slots</h3>');
1462: my $cname=$env{'course.'.$env{'request.course.id'}.'.num'};
1463: my $cdom=$env{'course.'.$env{'request.course.id'}.'.domain'};
1464: my $countdone=0;
1.31 albertel 1465: my @errors;
1.14 albertel 1466: foreach my $slot (@slotdata) {
1467: my %slot;
1468: my %entries=&Apache::loncommon::record_sep($slot);
1469: my $domain;
1470: my $name=$entries{$fields{'name'}};
1.31 albertel 1471: if ($name=~/^\s*$/) {
1472: push(@errors,"Did not create slot with no name");
1473: next;
1474: }
1475: if ($name=~/\s/) {
1476: push(@errors,"$name not created -- Name must not contain spaces");
1477: next;
1478: }
1479: if ($name=~/\W/) {
1480: push(@errors,"$name not created -- Name must contain only letters, numbers and _");
1481: next;
1482: }
1.14 albertel 1483: if ($entries{$fields{'type'}}) {
1484: $slot{'type'}=$entries{$fields{'type'}};
1485: } else {
1486: $slot{'type'}='preassigned';
1487: }
1.31 albertel 1488: if ($slot{'type'} ne 'preassigned' &&
1489: $slot{'type'} ne 'schedulable_student') {
1490: push(@errors,"$name not created -- invalid type ($slot{'type'}) must be either preassigned or schedulable_student");
1491: next;
1492: }
1.14 albertel 1493: if ($entries{$fields{'starttime'}}) {
1494: $slot{'starttime'}=&UnixDate($entries{$fields{'starttime'}},"%s");
1495: }
1496: if ($entries{$fields{'endtime'}}) {
1.16 albertel 1497: $slot{'endtime'}=&UnixDate($entries{$fields{'endtime'}},"%s");
1.14 albertel 1498: }
1.58 albertel 1499:
1500: # start/endtime must be defined and greater than zero
1501: if (!$slot{'starttime'}) {
1502: push(@errors,"$name not created -- Invalid start time");
1503: next;
1504: }
1505: if (!$slot{'endtime'}) {
1506: push(@errors,"$name not created -- Invalid end time");
1507: next;
1508: }
1509: if ($slot{'starttime'} > $slot{'endtime'}) {
1510: push(@errors,"$name not created -- Slot starts after it ends");
1511: next;
1512: }
1513:
1.23 albertel 1514: if ($entries{$fields{'startreserve'}}) {
1515: $slot{'startreserve'}=
1516: &UnixDate($entries{$fields{'startreserve'}},"%s");
1517: }
1.58 albertel 1518: if (defined($slot{'startreserve'})
1519: && $slot{'startreserve'} > $slot{'starttime'}) {
1520: push(@errors,"$name not created -- Slot's reservation start time is after the slot's start time.");
1521: next;
1522: }
1523:
1.14 albertel 1524: foreach my $key ('ip','proctor','description','maxspace',
1525: 'secret','symb') {
1526: if ($entries{$fields{$key}}) {
1527: $slot{$key}=$entries{$fields{$key}};
1528: }
1529: }
1.58 albertel 1530:
1.14 albertel 1531: if ($entries{$fields{'uniqueperiod'}}) {
1532: my ($start,$end)=split(',',$entries{$fields{'uniqueperiod'}});
1533: my @times=(&UnixDate($start,"%s"),
1534: &UnixDate($end,"%s"));
1535: $slot{'uniqueperiod'}=\@times;
1536: }
1.58 albertel 1537: if (defined($slot{'uniqueperiod'})
1538: && $slot{'uniqueperiod'}[0] > $slot{'uniqueperiod'}[1]) {
1539: push(@errors,"$name not created -- Slot's unique period start time is later than the unique period's end time.");
1540: next;
1541: }
1.14 albertel 1542:
1543: &Apache::lonnet::cput('slots',{$name=>\%slot},$cdom,$cname);
1544: $r->print('.');
1545: $r->rflush();
1546: $countdone++;
1547: }
1.31 albertel 1548: $r->print("<p>Created $countdone slots\n</p>");
1549: foreach my $error (@errors) {
1.78 ! albertel 1550: $r->print("<p><span class=\"LC_warning\">$error</span></p>\n");
1.31 albertel 1551: }
1.19 albertel 1552: &show_table($r,$mgr);
1.14 albertel 1553: return '';
1554: }
1555:
1.1 albertel 1556: sub handler {
1557: my $r=shift;
1558:
1.30 albertel 1559: &Apache::loncommon::content_type($r,'text/html');
1560: &Apache::loncommon::no_cache($r);
1561: if ($r->header_only()) {
1562: $r->send_http_header();
1563: return OK;
1564: }
1565:
1.8 albertel 1566: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'});
1.28 albertel 1567:
1.12 albertel 1568: my $vgr=&Apache::lonnet::allowed('vgr',$env{'request.course.id'});
1.14 albertel 1569: my $mgr=&Apache::lonnet::allowed('mgr',$env{'request.course.id'});
1.28 albertel 1570: my $title='Requesting Another Worktime';
1571: if ($env{'form.command'} =~ /^(showslots|uploadstart|csvuploadmap|csvuploadassign)$/ && $vgr eq 'F') {
1572: $title = 'Managing Slots';
1573: }
1574: &start_page($r,$title);
1575:
1.8 albertel 1576: if ($env{'form.command'} eq 'showslots' && $vgr eq 'F') {
1.19 albertel 1577: &show_table($r,$mgr);
1.33 albertel 1578: } elsif ($env{'form.command'} eq 'remove_registration' && $mgr eq 'F') {
1579: &remove_registration($r);
1580: } elsif ($env{'form.command'} eq 'release' && $mgr eq 'F') {
1.55 albertel 1581: if ($env{'form.entry'} eq 'remove all') {
1582: &release_all_slot($r,$mgr);
1583: } else {
1584: &release_slot($r,undef,undef,undef,$mgr);
1585: }
1.34 albertel 1586: } elsif ($env{'form.command'} eq 'delete' && $mgr eq 'F') {
1587: &delete_slot($r);
1.14 albertel 1588: } elsif ($env{'form.command'} eq 'uploadstart' && $mgr eq 'F') {
1.19 albertel 1589: &upload_start($r);
1.14 albertel 1590: } elsif ($env{'form.command'} eq 'csvuploadmap' && $mgr eq 'F') {
1.19 albertel 1591: &csv_upload_map($r);
1.14 albertel 1592: } elsif ($env{'form.command'} eq 'csvuploadassign' && $mgr eq 'F') {
1593: if ($env{'form.associate'} ne 'Reverse Association') {
1.19 albertel 1594: &csv_upload_assign($r,$mgr);
1.14 albertel 1595: } else {
1596: if ( $env{'form.upfile_associate'} ne 'reverse' ) {
1597: $env{'form.upfile_associate'} = 'reverse';
1598: } else {
1599: $env{'form.upfile_associate'} = 'forward';
1600: }
1.19 albertel 1601: &csv_upload_map($r);
1.14 albertel 1602: }
1.8 albertel 1603: } else {
1.63 www 1604: my $symb=&unescape($env{'form.symb'});
1.61 albertel 1605: if (!defined($symb)) {
1606: &fail($r,'not_valid');
1607: return OK;
1608: }
1.19 albertel 1609: my (undef,undef,$res)=&Apache::lonnet::decode_symb($symb);
1.36 albertel 1610: my $useslots = &Apache::lonnet::EXT("resource.0.useslots",$symb);
1.66 albertel 1611: if ($useslots ne 'resource'
1612: && $useslots ne 'map'
1613: && $useslots ne 'map_map') {
1.61 albertel 1614: &fail($r,'not_available');
1.19 albertel 1615: return OK;
1616: }
1617: $env{'request.symb'}=$symb;
1.36 albertel 1618: my $type = ($res =~ /\.task$/) ? 'Task'
1619: : 'problem';
1620: my ($status) = &Apache::lonhomework::check_slot_access('0',$type);
1.11 albertel 1621: if ($status eq 'CAN_ANSWER' ||
1622: $status eq 'NEEDS_CHECKIN' ||
1623: $status eq 'WAITING_FOR_GRADE') {
1624: &fail($r,'not_allowed');
1625: return OK;
1626: }
1627: if ($env{'form.requestattempt'}) {
1628: &show_choices($r,$symb);
1629: } elsif ($env{'form.command'} eq 'release') {
1630: &release_slot($r,$symb);
1631: } elsif ($env{'form.command'} eq 'get') {
1632: &get_slot($r,$symb);
1633: } elsif ($env{'form.command'} eq 'change') {
1.75 albertel 1634: if (&get_slot($r,$symb,$env{'form.releaseslot'},1)) {
1635: &release_slot($r,$symb,$env{'form.releaseslot'});
1.39 albertel 1636: }
1.11 albertel 1637: } else {
1638: $r->print("<p>Unknown command: ".$env{'form.command'}."</p>");
1639: }
1.2 albertel 1640: }
1.1 albertel 1641: &end_page($r);
1642: return OK;
1643: }
1.3 albertel 1644:
1645: 1;
1646: __END__
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