1: # The LearningOnline Network with CAPA
2: # Handler for requesting to have slots added to a students record
3: #
4: # $Id: slotrequest.pm,v 1.87 2009/02/02 02:56:12 raeburn Exp $
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;
37: use Apache::lonnavmaps();
38: use Date::Manip;
39: use lib '/home/httpd/lib/perl/';
40: use LONCAPA;
41:
42: sub fail {
43: my ($r,$code)=@_;
44: if ($code eq 'not_valid') {
45: $r->print('<p>'.&mt('Unable to understand what resource you wanted to sign up for.').'</p>');
46: } elsif ($code eq 'not_available') {
47: $r->print('<p>'.&mt('No slots are available.').'</p>');
48: } elsif ($code eq 'not_allowed') {
49: $r->print('<p>'.&mt('Not allowed to sign up or change reservations at this time.').'</p>');
50: } else {
51: $r->print('<p>'.&mt('Failed.').'</p>');
52: }
53:
54: &return_link($r);
55: &end_page($r);
56: }
57:
58: sub start_page {
59: my ($r,$title)=@_;
60: $r->print(&Apache::loncommon::start_page($title));
61: }
62:
63: sub end_page {
64: my ($r)=@_;
65: $r->print(&Apache::loncommon::end_page());
66: }
67:
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 {
80: (undef,my $courseid)=&Apache::lonnet::whichuser();
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: "^$slot_name\0");
93: if (&Apache::lonnet::error(%consumed)) {
94: return 'error: Unable to determine current status';
95: }
96: my ($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 < $max) {
111: return 1
112: }
113: return 0;
114: }
115:
116: sub check_for_reservation {
117: my ($symb,$mode)=@_;
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, $cnum);
129:
130: if (&Apache::lonnet::error($student)
131: || &Apache::lonnet::error($course)
132: || &Apache::lonnet::error(%slots)) {
133: return 'error: Unable to determine current status';
134: }
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) {
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'});
149: if ($slots{$slot_name}->{'endtime'} > time &&
150: $slots{$slot_name}->{'startreserve'} < time) {
151: # between start of reservation times and end of slot
152: if ($mode eq 'allslots') {
153: push(@got,$slot_name);
154: } else {
155: return($slot_name, $slots{$slot_name});
156: }
157: }
158: }
159: if ($mode eq 'allslots' && @got) {
160: return @got;
161: }
162: return (undef,undef);
163: }
164:
165: sub get_consumed_uniqueperiods {
166: my ($slots) = @_;
167: my $navmap=Apache::lonnavmaps::navmap->new;
168: if (!defined($navmap)) {
169: return 'error: Unable to determine current status';
170: }
171: my @problems = $navmap->retrieveResources(undef,
172: sub { $_[0]->is_problem() },1,0);
173: my %used_slots;
174: foreach my $problem (@problems) {
175: my $symb = $problem->symb();
176: my $student = &Apache::lonnet::EXT("resource.0.availablestudent",
177: $symb, $env{'user.domain'},
178: $env{'user.name'});
179: my $course = &Apache::lonnet::EXT("resource.0.available",
180: $symb, $env{'user.domain'},
181: $env{'user.name'});
182: if (&Apache::lonnet::error($student)
183: || &Apache::lonnet::error($course)) {
184: return 'error: Unable to determine current status';
185: }
186: foreach my $slot (split(/:/,$student), split(/:/, $course)) {
187: $used_slots{$slot}=1;
188: }
189: }
190:
191: if (!ref($slots)) {
192: my ($cnum,$cdom)=&get_course();
193: my %slots=&Apache::lonnet::get('slots', [keys(%used_slots)], $cdom, $cnum);
194: if (&Apache::lonnet::error(%slots)) {
195: return 'error: Unable to determine current status';
196: }
197: $slots = \%slots;
198: }
199:
200: my %consumed_uniqueperiods;
201: foreach my $slot_name (keys(%used_slots)) {
202: next if (!defined($slots->{$slot_name}) ||
203: !ref($slots->{$slot_name}));
204:
205: next if (!defined($slots->{$slot_name}{'uniqueperiod'}) ||
206: !ref($slots->{$slot_name}{'uniqueperiod'}));
207: $consumed_uniqueperiods{$slot_name} =
208: $slots->{$slot_name}{'uniqueperiod'};
209: }
210: return \%consumed_uniqueperiods;
211: }
212:
213: sub check_for_conflict {
214: my ($symb,$new_slot_name,$new_slot,$slots,$consumed_uniqueperiods)=@_;
215:
216: if (!defined($new_slot->{'uniqueperiod'})) { return undef; }
217:
218: if (!ref($consumed_uniqueperiods)) {
219: $consumed_uniqueperiods = &get_consumed_uniqueperiods($slots);
220: if (ref($consumed_uniqueperiods) eq 'HASH') {
221: if (&Apache::lonnet::error(%$consumed_uniqueperiods)) {
222: return 'error: Unable to determine current status';
223: }
224: } else {
225: return 'error: Unable to determine current status';
226: }
227: }
228:
229: my ($new_uniq_start,$new_uniq_end) = @{$new_slot->{'uniqueperiod'}};
230: foreach my $slot_name (keys(%$consumed_uniqueperiods)) {
231: my ($start,$end)=@{$consumed_uniqueperiods->{$slot_name}};
232: if (!
233: ($start < $new_uniq_start && $end < $new_uniq_start) ||
234: ($start > $new_uniq_end && $end > $new_uniq_end )) {
235: return $slot_name;
236: }
237: }
238: return undef;
239: }
240:
241: sub make_reservation {
242: my ($slot_name,$slot,$symb)=@_;
243:
244: my ($cnum,$cdom)=&get_course();
245:
246: my $value=&Apache::lonnet::EXT("resource.0.availablestudent",$symb,
247: $env{'user.domain'},$env{'user.name'});
248: &Apache::lonxml::debug("value is $value<br />");
249:
250: my $use_slots = &Apache::lonnet::EXT("resource.0.useslots",$symb,
251: $env{'user.domain'},$env{'user.name'});
252: &Apache::lonxml::debug("use_slots is $use_slots<br />");
253:
254: if (&Apache::lonnet::error($value)
255: || &Apache::lonnet::error($use_slots)) {
256: return 'error: Unable to determine current status';
257: }
258:
259: my $parm_symb = $symb;
260: my $parm_level = 1;
261: if ($use_slots eq 'map' || $use_slots eq 'map_map') {
262: my ($map) = &Apache::lonnet::decode_symb($symb);
263: $parm_symb = &Apache::lonnet::symbread($map);
264: $parm_level = 2;
265: }
266:
267: foreach my $other_slot (split(/:/, $value)) {
268: if ($other_slot eq $slot_name) {
269: my %consumed=&Apache::lonnet::dump('slot_reservations', $cdom,
270: $cnum, "^$slot_name\0");
271: if (&Apache::lonnet::error($value)) {
272: return 'error: Unable to determine current status';
273: }
274: my $me=$env{'user.name'}.':'.$env{'user.domain'};
275: foreach my $key (keys(%consumed)) {
276: if ($consumed{$key}->{'name'} eq $me) {
277: my $num=(split('\0',$key))[1];
278: return -$num;
279: }
280: }
281: }
282: }
283:
284: my $max=$slot->{'maxspace'};
285: if (!defined($max)) { $max=99999; }
286:
287: my (@ids)=&get_reservation_ids($slot_name);
288: if (&Apache::lonnet::error(@ids)) {
289: return 'error: Unable to determine current status';
290: }
291: my $last=0;
292: foreach my $id (@ids) {
293: my $num=(split('\0',$id))[1];
294: if ($num > $last) { $last=$num; }
295: }
296:
297: my $wanted=$last+1;
298: &Apache::lonxml::debug("wanted $wanted<br />");
299: if (scalar(@ids) >= $max) {
300: # full up
301: return undef;
302: }
303:
304: my %reservation=('name' => $env{'user.name'}.':'.$env{'user.domain'},
305: 'timestamp' => time,
306: 'symb' => $parm_symb);
307:
308: my $success=&Apache::lonnet::newput('slot_reservations',
309: {"$slot_name\0$wanted" =>
310: \%reservation},
311: $cdom, $cnum);
312:
313: if ($success eq 'ok') {
314: my $new_value=$slot_name;
315: if ($value) {
316: $new_value=$value.':'.$new_value;
317: }
318: my $result=&Apache::lonparmset::storeparm_by_symb($symb,
319: '0_availablestudent',
320: $parm_level, $new_value,
321: 'string',
322: $env{'user.name'},
323: $env{'user.domain'});
324: &Apache::lonxml::debug("hrrm $result");
325: return $wanted;
326: }
327:
328: # someone else got it
329: return undef;
330: }
331:
332: sub remove_registration {
333: my ($r) = @_;
334: if ($env{'form.entry'} ne 'remove all') {
335: return &remove_registration_user($r);
336: }
337: my $slot_name = $env{'form.slotname'};
338: my %slot=&Apache::lonnet::get_slot($slot_name);
339:
340: my ($cnum,$cdom)=&get_course();
341: my %consumed=&Apache::lonnet::dump('slot_reservations',$cdom,$cnum,
342: "^$slot_name\0");
343: if (&Apache::lonnet::error(%consumed)) {
344: $r->print("<p><span class=\"LC_error\">".&mt('A network error has occurred.').'</span></p>');
345: return;
346: }
347: if (!%consumed) {
348: $r->print('<p>'.&mt('Slot [_1] has no reservations.',
349: '<tt>'.$slot_name.'</tt>').'</p>');
350: return;
351: }
352:
353: my @names = map { $consumed{$_}{'name'} } (sort(keys(%consumed)));
354: my $names = join(' ',@names);
355:
356: my $msg = &mt('Remove all of [_1] from slot [_2]?',$names,$slot_name);
357: &remove_registration_confirmation($r,$msg,['entry','slotname']);
358: }
359:
360: sub remove_registration_user {
361: my ($r) = @_;
362:
363: my $slot_name = $env{'form.slotname'};
364:
365: my $name = &Apache::loncommon::plainname($env{'form.uname'},
366: $env{'form.udom'});
367:
368: my $title = &Apache::lonnet::gettitle($env{'form.symb'});
369:
370: my $msg = &mt('Remove [_1] from slot [_2] for [_3]',
371: $name,$slot_name,$title);
372:
373: &remove_registration_confirmation($r,$msg,['uname','udom','slotname',
374: 'entry','symb']);
375: }
376:
377: sub remove_registration_confirmation {
378: my ($r,$msg,$inputs) =@_;
379:
380: my $hidden_input;
381: foreach my $parm (@{$inputs}) {
382: $hidden_input .=
383: '<input type="hidden" name="'.$parm.'" value="'
384: .&HTML::Entities::encode($env{'form.'.$parm},'"<>&\'').'" />'."\n";
385: }
386: my %lt = &Apache::lonlocal::texthash('yes' => 'Yes',
387: 'no' => 'No',);
388: $r->print(<<"END_CONFIRM");
389: <p> $msg </p>
390: <form action="/adm/slotrequest" method="post">
391: <input type="hidden" name="command" value="release" />
392: <input type="hidden" name="button" value="yes" />
393: $hidden_input
394: <input type="submit" value="$lt{'yes'}" />
395: </form>
396: <form action="/adm/slotrequest" method="post">
397: <input type="hidden" name="command" value="showslots" />
398: <input type="submit" value="$lt{'no'}" />
399: </form>
400: END_CONFIRM
401:
402: }
403:
404: sub release_all_slot {
405: my ($r,$mgr)=@_;
406:
407: my $slot_name = $env{'form.slotname'};
408:
409: my ($cnum,$cdom)=&get_course();
410:
411: my %consumed=&Apache::lonnet::dump('slot_reservations',$cdom,$cnum,
412: "^$slot_name\0");
413:
414: $r->print('<p>'.&mt('Releasing reservations').'</p>');
415:
416: foreach my $entry (sort { $consumed{$a}{'name'} cmp
417: $consumed{$b}{'name'} } (keys(%consumed))) {
418: my ($uname,$udom) = split(':',$consumed{$entry}{'name'});
419: my ($result,$msg) =
420: &release_reservation($slot_name,$uname,$udom,
421: $consumed{$entry}{'symb'},$mgr);
422: if (!$result) {
423: $r->print('<p><span class="LC_error">'.&mt($msg).'</span></p>');
424: } else {
425: $r->print("<p>$msg</p>");
426: }
427: $r->rflush();
428: }
429: $r->print('<p><a href="/adm/slotrequest?command=showslots">'.
430: &mt('Return to slot list').'</a></p>');
431: &return_link($r);
432: }
433:
434: sub release_slot {
435: my ($r,$symb,$slot_name,$inhibit_return_link,$mgr)=@_;
436:
437: if ($slot_name eq '') { $slot_name=$env{'form.slotname'}; }
438:
439: my ($uname,$udom) = ($env{'user.name'}, $env{'user.domain'});
440: if ($mgr eq 'F'
441: && defined($env{'form.uname'}) && defined($env{'form.udom'})) {
442: ($uname,$udom) = ($env{'form.uname'}, $env{'form.udom'});
443: }
444:
445: if ($mgr eq 'F'
446: && defined($env{'form.symb'})) {
447: $symb = &unescape($env{'form.symb'});
448: }
449:
450: my ($result,$msg) =
451: &release_reservation($slot_name,$uname,$udom,$symb,$mgr);
452: if (!$result) {
453: $r->print('<p><span class="LC_error">'.&mt($msg).'</span></p>');
454: } else {
455: $r->print("<p>$msg</p>");
456: }
457:
458: if ($mgr eq 'F') {
459: $r->print('<p><a href="/adm/slotrequest?command=showslots">'.
460: &mt('Return to slot list').'</a></p>');
461: }
462:
463: if (!$inhibit_return_link) { &return_link($r); }
464: return $result;
465: }
466:
467: sub release_reservation {
468: my ($slot_name,$uname,$udom,$symb,$mgr) = @_;
469: my %slot=&Apache::lonnet::get_slot($slot_name);
470: my $description=&get_description($slot_name,\%slot);
471:
472: if ($mgr ne 'F') {
473: if ($slot{'starttime'} < time) {
474: return (0,&mt('Not allowed to release Reservation: [_1], as it has already ended.',$description));
475: }
476: }
477:
478: # if the reservation symb is for a map get a resource in that map
479: # to check slot parameters on
480: my $navmap=Apache::lonnavmaps::navmap->new;
481: if (!defined($navmap)) {
482: return (0,'error: Unable to determine current status');
483: }
484: my $passed_resource = $navmap->getBySymb($symb);
485: if ($passed_resource->is_map()) {
486: my ($a_resource) =
487: $navmap->retrieveResources($passed_resource,
488: sub {$_[0]->is_problem()},0,1);
489: $symb = $a_resource->symb();
490: }
491:
492: # get parameter string, check for existance, rebuild string with the slot
493: my $student = &Apache::lonnet::EXT("resource.0.availablestudent",
494: $symb,$udom,$uname);
495: my @slots = split(/:/,$student);
496:
497: my @new_slots;
498: foreach my $exist_slot (@slots) {
499: if ($exist_slot eq $slot_name) { next; }
500: push(@new_slots,$exist_slot);
501: }
502: my $new_param = join(':',@new_slots);
503:
504: my ($cnum,$cdom)=&get_course();
505:
506: # get slot reservations, check if user has one, if so remove reservation
507: my %consumed=&Apache::lonnet::dump('slot_reservations',$cdom,$cnum,
508: "^$slot_name\0");
509: foreach my $entry (keys(%consumed)) {
510: if ( $consumed{$entry}->{'name'} eq ($uname.':'.$udom) ) {
511: &Apache::lonnet::del('slot_reservations',[$entry],
512: $cdom,$cnum);
513: }
514: }
515:
516: my $use_slots = &Apache::lonnet::EXT("resource.0.useslots",
517: $symb,$udom,$uname);
518: &Apache::lonxml::debug("use_slots is $use_slots<br />");
519:
520: if (&Apache::lonnet::error($use_slots)) {
521: return (0,'error: Unable to determine current status');
522: }
523:
524: my $parm_level = 1;
525: if ($use_slots eq 'map' || $use_slots eq 'map_map') {
526: $parm_level = 2;
527: }
528: # store new parameter string
529: my $result=&Apache::lonparmset::storeparm_by_symb($symb,
530: '0_availablestudent',
531: $parm_level, $new_param,
532: 'string', $uname, $udom);
533:
534: my $msg;
535: if ($mgr eq 'F') {
536: $msg = &mt('Released Reservation for user: [_1]',"$uname:$udom");
537: } else {
538: $msg = &mt('Released Reservation: [_1]',$description);
539: }
540: return (1,$msg);
541: }
542:
543: sub delete_slot {
544: my ($r)=@_;
545:
546: my $slot_name = $env{'form.slotname'};
547: my %slot=&Apache::lonnet::get_slot($slot_name);
548:
549: my ($cnum,$cdom)=&get_course();
550: my %consumed=&Apache::lonnet::dump('slot_reservations',$cdom,$cnum,
551: "^$slot_name\0");
552: my ($tmp) = %consumed;
553: if ($tmp =~ /error: 2/) { undef(%consumed); }
554:
555: if (%slot && !%consumed) {
556: $slot{'type'} = 'deleted';
557: my $ret = &Apache::lonnet::cput('slots', {$slot_name => \%slot},
558: $cdom, $cnum);
559: if ($ret eq 'ok') {
560: $r->print('<p>'.&mt('Slot [_1] marked as deleted.','<tt>'.$slot_name.'</tt>').'</p>');
561: } else {
562: $r->print('<p><span class="LC_error">'.&mt('An error occurred when attempting to delete slot: [_1]','<tt>'.$slot_name.'</tt>')." ($ret)</span></p>");
563: }
564: } else {
565: if (%consumed) {
566: $r->print('<p>'.&mt('Slot [_1] has active reservations.','<tt>'.$slot_name.'</tt>').'</p>');
567: } else {
568: $r->print('<p>'.&mt('Slot [_1] does not exist.','<tt>'.$slot_name.'</tt>').'</p>');
569: }
570: }
571: $r->print('<p><a href="/adm/slotrequest?command=showslots">'.
572: &mt('Return to slot list').'</a></p>');
573: &return_link($r);
574: }
575:
576: sub return_link {
577: my ($r) = @_;
578: $r->print('<p><a href="/adm/flip?postdata=return:">'.
579: &mt('Return to last resource').'</a></p>');
580: }
581:
582: sub get_slot {
583: my ($r,$symb,$conflictable_slot,$inhibit_return_link)=@_;
584:
585: my %slot=&Apache::lonnet::get_slot($env{'form.slotname'});
586: my $slot_name=&check_for_conflict($symb,$env{'form.slotname'},\%slot);
587:
588: if ($slot_name =~ /^error: (.*)/) {
589: $r->print('<p><span class="LC_error">'
590: .&mt('An error occurred while attempting to make a reservation. ([_1])',$1)
591: .'</span></p>');
592: &return_link($r);
593: return 0;
594: }
595: if ($slot_name && $slot_name ne $conflictable_slot) {
596: my %slot=&Apache::lonnet::get_slot($slot_name);
597: my $description1=&get_description($slot_name,\%slot);
598: %slot=&Apache::lonnet::get_slot($env{'form.slotname'});
599: my $description2=&get_description($env{'form.slotname'},\%slot);
600: $r->print('<p>'.&mt('Already have a reservation: [_1].',$description1).'</p>');
601: if ($slot_name ne $env{'form.slotname'}) {
602: $r->print(<<STUFF);
603: <form method="post" action="/adm/slotrequest">
604: <input type="hidden" name="symb" value="$env{'form.symb'}" />
605: <input type="hidden" name="slotname" value="$env{'form.slotname'}" />
606: <input type="hidden" name="releaseslot" value="$slot_name" />
607: <input type="hidden" name="command" value="change" />
608: STUFF
609: $r->print('<p>'.&mt('You can either [_1] your reservation from [2] to [_3] or [_4]','<input type="submit" name="change" value="'.&mt('Change').'" />','<b>'.$description1.'</b>','<b>'.$description2.'</b><br />','</p>'));
610: &return_link($r);
611: $r->print(<<STUFF);
612: </form>
613: STUFF
614: } else {
615: &return_link($r);
616: }
617: return 0;
618: }
619:
620: my $reserved=&make_reservation($env{'form.slotname'},
621: \%slot,$symb);
622: my $description=&get_description($env{'form.slotname'},\%slot);
623: if (defined($reserved)) {
624: my $retvalue = 0;
625: if ($slot_name =~ /^error: (.*)/) {
626: $r->print('<p><span class="LC_error">'
627: .&mt('An error occurred while attempting to make a reservation. ([_1])',$1)
628: .'</span></p>');
629: } elsif ($reserved > -1) {
630: $r->print('<p>'.&mt('Success: [_1]',$description).'</p>');
631: $retvalue = 1;
632: } elsif ($reserved < 0) {
633: $r->print('<p>'.&mt('Already reserved: [_1]',$description).'</p>');
634: }
635: if (!$inhibit_return_link) { &return_link($r); }
636: return 1;
637: }
638:
639: my %lt=('request'=>"Availibility list",
640: 'try' =>'Try again?',
641: 'or' => 'or');
642: %lt=&Apache::lonlocal::texthash(%lt);
643:
644: my $extra_input;
645: if ($conflictable_slot) {
646: $extra_input='<input type="hidden" name="releaseslot" value="'.$env{'form.slotname'}.'" />';
647: }
648:
649: $r->print('<p>'.&mt('[_1]Failed[_2] to reserve a slot for [_3].','<span class="LC_warning">','</span>',$description).'</p>');
650: $r->print(<<STUFF);
651: <p>
652: <form method="post" action="/adm/slotrequest">
653: <input type="submit" name="Try Again" value="$lt{'try'}" />
654: <input type="hidden" name="symb" value="$env{'form.symb'}" />
655: <input type="hidden" name="slotname" value="$env{'form.slotname'}" />
656: <input type="hidden" name="command" value="$env{'form.command'}" />
657: $extra_input
658: </form>
659: </p>
660: <p>
661: $lt{'or'}
662: <form method="post" action="/adm/slotrequest">
663: <input type="hidden" name="symb" value="$env{'form.symb'}" />
664: <input type="submit" name="requestattempt" value="$lt{'request'}" />
665: </form>
666: STUFF
667:
668: if (!$inhibit_return_link) {
669: $r->print(&mt('or').'</p>').&return_link($r);
670: } else {
671: $r->print('</p>');
672: }
673: return 0;
674: }
675:
676: sub allowed_slot {
677: my ($slot_name,$slot,$symb,$slots,$consumed_uniqueperiods)=@_;
678:
679: #already started
680: if ($slot->{'starttime'} < time) {
681: return 0;
682: }
683: &Apache::lonxml::debug("$slot_name starttime good");
684:
685: #already ended
686: if ($slot->{'endtime'} < time) {
687: return 0;
688: }
689: &Apache::lonxml::debug("$slot_name endtime good");
690:
691: # not allowed to pick this one
692: if (defined($slot->{'type'})
693: && $slot->{'type'} ne 'schedulable_student') {
694: return 0;
695: }
696: &Apache::lonxml::debug("$slot_name type good");
697:
698: # reserve time not yet started
699: if ($slot->{'startreserve'} > time) {
700: return 0;
701: }
702: &Apache::lonxml::debug("$slot_name reserve good");
703:
704: my $userallowed=0;
705: # its for a different set of users
706: if (defined($slot->{'allowedsections'})) {
707: if (!defined($env{'request.role.sec'})
708: && grep(/^No section assigned$/,
709: split(',',$slot->{'allowedsections'}))) {
710: $userallowed=1;
711: }
712: if (defined($env{'request.role.sec'})
713: && grep(/^\Q$env{'request.role.sec'}\E$/,
714: split(',',$slot->{'allowedsections'}))) {
715: $userallowed=1;
716: }
717: if (defined($env{'request.course.groups'})) {
718: my @groups = split(/:/,$env{'request.course.groups'});
719: my @allowed_sec = split(',',$slot->{'allowedsections'});
720: foreach my $group (@groups) {
721: if (grep {$_ eq $group} (@allowed_sec)) {
722: $userallowed=1;
723: last;
724: }
725: }
726: }
727: }
728: &Apache::lonxml::debug("$slot_name sections is $userallowed");
729:
730: # its for a different set of users
731: if (defined($slot->{'allowedusers'})
732: && grep(/^\Q$env{'user.name'}:$env{'user.domain'}\E$/,
733: split(',',$slot->{'allowedusers'}))) {
734: $userallowed=1;
735: }
736:
737: if (!defined($slot->{'allowedusers'})
738: && !defined($slot->{'allowedsections'})) {
739: $userallowed=1;
740: }
741:
742: &Apache::lonxml::debug("$slot_name user is $userallowed");
743: return 0 if (!$userallowed);
744:
745: # not allowed for this resource
746: if (defined($slot->{'symb'})
747: && $slot->{'symb'} ne $symb) {
748: return 0;
749: }
750:
751: my $conflict = &check_for_conflict($symb,$slot_name,$slot,$slots,
752: $consumed_uniqueperiods);
753: if ($conflict =~ /^error: /) {
754: return 0;
755: } elsif ($conflict ne '') {
756: if ($slots->{$conflict}{'starttime'} < time) {
757: return 0;
758: }
759: }
760: &Apache::lonxml::debug("$slot_name symb good");
761: return 1;
762: }
763:
764: sub get_description {
765: my ($slot_name,$slot)=@_;
766: my $description=$slot->{'description'};
767: if (!defined($description)) {
768: $description=&mt('[_1] From [_2] to [_3]',$slot_name,
769: &Apache::lonlocal::locallocaltime($slot->{'starttime'}),
770: &Apache::lonlocal::locallocaltime($slot->{'endtime'}));
771: }
772: return $description;
773: }
774:
775: sub show_choices {
776: my ($r,$symb)=@_;
777:
778: my ($cnum,$cdom)=&get_course();
779: my %slots=&Apache::lonnet::dump('slots',$cdom,$cnum);
780: my $consumed_uniqueperiods = &get_consumed_uniqueperiods(\%slots);
781: if (ref($consumed_uniqueperiods) eq 'HASH') {
782: if (&Apache::lonnet::error(%$consumed_uniqueperiods)) {
783: $r->print('<span class="LC_error">'.
784: &mt('An error occurred determining slot availability').
785: '</span>');
786: return;
787: }
788: } elsif ($consumed_uniqueperiods =~ /^error: /) {
789: $r->print('<span class="LC_error">'.
790: &mt('An error occurred determining slot availability').
791: '</span>');
792: return;
793: }
794: my $available;
795: &Apache::lonxml::debug("Checking Slots");
796: my @got_slots=&check_for_reservation($symb,'allslots');
797: if ($got_slots[0] =~ /^error: /) {
798: $r->print('<span class="LC_error">'.
799: &mt('An error occurred determining slot availability').
800: '</span>');
801: return;
802: }
803: $r->print('<table border="1">');
804: foreach my $slot (sort
805: { return $slots{$a}->{'starttime'} <=> $slots{$b}->{'starttime'} }
806: (keys(%slots))) {
807:
808: &Apache::lonxml::debug("Checking Slot $slot");
809: next if (!&allowed_slot($slot,$slots{$slot},undef,\%slots,
810: $consumed_uniqueperiods));
811:
812: $available++;
813:
814: my $description=&get_description($slot,$slots{$slot});
815:
816: my $form=&mt('Unavailable');
817: if ((grep(/^\Q$slot\E$/,@got_slots)) ||
818: &space_available($slot,$slots{$slot},$symb)) {
819: my $text=&mt('Select');
820: my $command='get';
821: if (grep(/^\Q$slot\E$/,@got_slots)) {
822: $text=&mt('Drop Reservation');
823: $command='release';
824: } else {
825: my $conflict = &check_for_conflict($symb,$slot,$slots{$slot},
826: \%slots,
827: $consumed_uniqueperiods);
828: if ($conflict) {
829: if ($conflict =~ /^error: /) {
830: $r->print('<tr><td><span class="LC_error" colspan="2">'
831: .&mt('Slot: [_1] has unknown status.',$description)
832: .'</span></td></tr>');
833: } else {
834: $text=&mt('Change Reservation');
835: $command='get';
836: }
837: }
838: }
839: my $escsymb=&escape($symb);
840: $form=<<STUFF;
841: <form method="post" action="/adm/slotrequest">
842: <input type="submit" name="Select" value="$text" />
843: <input type="hidden" name="symb" value="$escsymb" />
844: <input type="hidden" name="slotname" value="$slot" />
845: <input type="hidden" name="command" value="$command" />
846: </form>
847: STUFF
848: }
849: $r->print(<<STUFF);
850: <tr>
851: <td>$form</td>
852: <td>$description</td>
853: </tr>
854: STUFF
855: }
856:
857: if (!$available) {
858: $r->print('<tr><td>'.&mt('No available times.').
859: ' <a href="/adm/flip?postdata=return:">'.
860: &mt('Return to last resource').'</a></td></tr>');
861: }
862: $r->print('</table>');
863: }
864:
865: sub to_show {
866: my ($slotname,$slot,$when,$deleted,$name) = @_;
867: my $time=time;
868: my $week=60*60*24*7;
869:
870: if ($deleted eq 'hide' && $slot->{'type'} eq 'deleted') {
871: return 0;
872: }
873:
874: if ($name && $name->{'value'} =~ /\w/) {
875: if ($name->{'type'} eq 'substring') {
876: if ($slotname !~ /\Q$name->{'value'}\E/) {
877: return 0;
878: }
879: }
880: if ($name->{'type'} eq 'exact') {
881: if ($slotname eq $name->{'value'}) {
882: return 0;
883: }
884: }
885: }
886:
887: if ($when eq 'any') {
888: return 1;
889: } elsif ($when eq 'now') {
890: if ($time > $slot->{'starttime'} &&
891: $time < $slot->{'endtime'}) {
892: return 1;
893: }
894: return 0;
895: } elsif ($when eq 'nextweek') {
896: if ( ($time < $slot->{'starttime'} &&
897: ($time+$week) > $slot->{'starttime'})
898: ||
899: ($time < $slot->{'endtime'} &&
900: ($time+$week) > $slot->{'endtime'}) ) {
901: return 1;
902: }
903: return 0;
904: } elsif ($when eq 'lastweek') {
905: if ( ($time > $slot->{'starttime'} &&
906: ($time-$week) < $slot->{'starttime'})
907: ||
908: ($time > $slot->{'endtime'} &&
909: ($time-$week) < $slot->{'endtime'}) ) {
910: return 1;
911: }
912: return 0;
913: } elsif ($when eq 'willopen') {
914: if ($time < $slot->{'starttime'}) {
915: return 1;
916: }
917: return 0;
918: } elsif ($when eq 'wereopen') {
919: if ($time > $slot->{'endtime'}) {
920: return 1;
921: }
922: return 0;
923: }
924:
925: return 1;
926: }
927:
928: sub remove_link {
929: my ($slotname,$entry,$uname,$udom,$symb) = @_;
930:
931: my $remove = &mt('Remove');
932:
933: if ($entry eq 'remove all') {
934: $remove = &mt('Remove All');
935: undef($uname);
936: undef($udom);
937: }
938:
939: $slotname = &escape($slotname);
940: $entry = &escape($entry);
941: $uname = &escape($uname);
942: $udom = &escape($udom);
943: $symb = &escape($symb);
944:
945: return <<"END_LINK";
946: <a href="/adm/slotrequest?command=remove_registration&slotname=$slotname&entry=$entry&uname=$uname&udom=$udom&symb=$symb"
947: >($remove)</a>
948: END_LINK
949:
950: }
951:
952: sub show_table {
953: my ($r,$mgr)=@_;
954:
955: my ($cnum,$cdom)=&get_course();
956: my %slots=&Apache::lonnet::dump('slots',$cdom,$cnum);
957: if ( (keys(%slots))[0] =~ /^error: 2 /) {
958: undef(%slots);
959: }
960: my $available;
961: if ($mgr eq 'F') {
962: # FIXME: This line should be deleted once Slots uses breadcrumbs
963: $r->print(&Apache::loncommon::help_open_topic('Slot About', 'Help on slots'));
964:
965: $r->print('<div>');
966: $r->print('<form method="post" action="/adm/slotrequest">
967: <input type="hidden" name="command" value="uploadstart" />
968: <input type="submit" name="start" value="'.&mt('Upload Slot List').'" />
969: </form>');
970: $r->print(&Apache::loncommon::help_open_topic('Slot CommaDelimited'));
971: $r->print('<form method="post" action="/adm/helper/newslot.helper">
972: <input type="submit" name="newslot" value="'.&mt('Create a New Slot').'" />
973: </form>');
974: $r->print(&Apache::loncommon::help_open_topic('Slot AddInterface'));
975: $r->print('</div>');
976: }
977:
978: my %Saveable_Parameters = ('show' => 'array',
979: 'when' => 'scalar',
980: 'order' => 'scalar',
981: 'deleted' => 'scalar',
982: 'name_filter_type' => 'scalar',
983: 'name_filter_value' => 'scalar',
984: );
985: &Apache::loncommon::store_course_settings('slotrequest',
986: \%Saveable_Parameters);
987: &Apache::loncommon::restore_course_settings('slotrequest',
988: \%Saveable_Parameters);
989: &Apache::grades::init_perm();
990: my ($classlist,$section,$fullname)=&Apache::grades::getclasslist('all');
991: &Apache::grades::reset_perm();
992:
993: # what to display filtering
994: my %show_fields=&Apache::lonlocal::texthash(
995: 'name' => 'Slot Name',
996: 'description' => 'Description',
997: 'type' => 'Type',
998: 'starttime' => 'Start time',
999: 'endtime' => 'End Time',
1000: 'startreserve' => 'Time students can start reserving',
1001: 'secret' => 'Secret Word',
1002: 'space' => '# of students/max',
1003: 'ip' => 'IP or DNS restrictions',
1004: 'symb' => 'Resource slot is restricted to.',
1005: 'allowedsections' => 'Sections slot is restricted to.',
1006: 'allowedusers' => 'Users slot is restricted to.',
1007: 'uniqueperiod' => 'Period of time slot is unique',
1008: 'scheduled' => 'Scheduled Students',
1009: 'proctor' => 'List of proctors');
1010: my @show_order=('name','description','type','starttime','endtime',
1011: 'startreserve','secret','space','ip','symb',
1012: 'allowedsections','allowedusers','uniqueperiod',
1013: 'scheduled','proctor');
1014: my @show =
1015: (exists($env{'form.show'})) ? &Apache::loncommon::get_env_multiple('form.show')
1016: : keys(%show_fields);
1017: my %show = map { $_ => 1 } (@show);
1018:
1019: #when filtering setup
1020: my %when_fields=&Apache::lonlocal::texthash(
1021: 'now' => 'Open now',
1022: 'nextweek' => 'Open within the next week',
1023: 'lastweek' => 'Were open last week',
1024: 'willopen' => 'Will open later',
1025: 'wereopen' => 'Were open',
1026: 'any' => 'Anytime',
1027: );
1028: my @when_order=('any','now','nextweek','lastweek','willopen','wereopen');
1029: $when_fields{'select_form_order'} = \@when_order;
1030: my $when = (exists($env{'form.when'})) ? $env{'form.when'}
1031: : 'now';
1032:
1033: #display of students setup
1034: my %stu_display_fields=
1035: &Apache::lonlocal::texthash('username' => 'User name',
1036: 'fullname' => 'Full name',
1037: );
1038: my @stu_display_order=('fullname','username');
1039: my @stu_display =
1040: (exists($env{'form.studisplay'})) ? &Apache::loncommon::get_env_multiple('form.studisplay')
1041: : keys(%stu_display_fields);
1042: my %stu_display = map { $_ => 1 } (@stu_display);
1043:
1044: #name filtering setup
1045: my %name_filter_type_fields=
1046: &Apache::lonlocal::texthash('substring' => 'Substring',
1047: 'exact' => 'Exact',
1048: #'reg' => 'Regular Expression',
1049: );
1050: my @name_filter_type_order=('substring','exact');
1051:
1052: $name_filter_type_fields{'select_form_order'} = \@name_filter_type_order;
1053: my $name_filter_type =
1054: (exists($env{'form.name_filter_type'})) ? $env{'form.name_filter_type'}
1055: : 'substring';
1056: my $name_filter = {'type' => $name_filter_type,
1057: 'value' => $env{'form.name_filter_value'},};
1058:
1059:
1060: #deleted slot filtering
1061: #default to hide if no value
1062: $env{'form.deleted'} ||= 'hide';
1063: my $hide_radio =
1064: &Apache::lonhtmlcommon::radio('deleted',$env{'form.deleted'},'hide');
1065: my $show_radio =
1066: &Apache::lonhtmlcommon::radio('deleted',$env{'form.deleted'},'show');
1067:
1068: $r->print('<form method="post" action="/adm/slotrequest">
1069: <input type="hidden" name="command" value="showslots" />');
1070: $r->print('<div>');
1071: $r->print('<table class="inline">
1072: <tr><th>'.&mt('Show').'</th>
1073: <th>'.&mt('Student Display').'</th>
1074: <th>'.&mt('Open').'</th>
1075: <th>'.&mt('Slot Name Filter').'</th>
1076: <th>'.&mt('Options').'</th>
1077: </tr>
1078: <tr><td>'.&Apache::loncommon::multiple_select_form('show',\@show,6,\%show_fields,\@show_order).
1079: '</td>
1080: <td>
1081: '.&Apache::loncommon::multiple_select_form('studisplay',\@stu_display,
1082: 6,\%stu_display_fields,
1083: \@stu_display_order).'
1084: </td>
1085: <td>'.&Apache::loncommon::select_form($when,'when',%when_fields).
1086: '</td>
1087: <td>'.&Apache::loncommon::select_form($name_filter_type,
1088: 'name_filter_type',
1089: %name_filter_type_fields).
1090: '<br />'.
1091: &Apache::lonhtmlcommon::textbox('name_filter_value',
1092: $env{'form.name_filter_value'},
1093: 15).
1094: '</td>
1095: <td>
1096: <table>
1097: <tr>
1098: <td rowspan="2">Deleted slots:</td>
1099: <td><label>'.$show_radio.'Show</label></td>
1100: </tr>
1101: <tr>
1102: <td><label>'.$hide_radio.'Hide</label></td>
1103: </tr>
1104: </table>
1105: </td>
1106: </tr>
1107: </table>');
1108: $r->print('</div>');
1109: $r->print('<p><input type="submit" name="start" value="'.&mt('Update Display').'" /></p>');
1110: my $linkstart='<a href="/adm/slotrequest?command=showslots&order=';
1111: $r->print(&Apache::loncommon::start_data_table().
1112: &Apache::loncommon::start_data_table_header_row().'
1113: <th></th>');
1114: foreach my $which (@show_order) {
1115: if ($which ne 'proctor' && exists($show{$which})) {
1116: $r->print('<th>'.$linkstart.$which.'">'.$show_fields{$which}.'</a></th>');
1117: }
1118: }
1119: $r->print(&Apache::loncommon::end_data_table_header_row());
1120:
1121: my %name_cache;
1122: my $slotsort = sub {
1123: if ($env{'form.order'}=~/^(type|description|endtime|startreserve|ip|symb|allowedsections|allowedusers)$/) {
1124: if (lc($slots{$a}->{$env{'form.order'}})
1125: ne lc($slots{$b}->{$env{'form.order'}})) {
1126: return (lc($slots{$a}->{$env{'form.order'}})
1127: cmp lc($slots{$b}->{$env{'form.order'}}));
1128: }
1129: } elsif ($env{'form.order'} eq 'space') {
1130: if ($slots{$a}{'maxspace'} ne $slots{$b}{'maxspace'}) {
1131: return ($slots{$a}{'maxspace'} cmp $slots{$b}{'maxspace'});
1132: }
1133: } elsif ($env{'form.order'} eq 'name') {
1134: if (lc($a) cmp lc($b)) {
1135: return lc($a) cmp lc($b);
1136: }
1137: } elsif ($env{'form.order'} eq 'uniqueperiod') {
1138:
1139: if ($slots{$a}->{'uniqueperiod'}[0]
1140: ne $slots{$b}->{'uniqueperiod'}[0]) {
1141: return ($slots{$a}->{'uniqueperiod'}[0]
1142: cmp $slots{$b}->{'uniqueperiod'}[0]);
1143: }
1144: if ($slots{$a}->{'uniqueperiod'}[1]
1145: ne $slots{$b}->{'uniqueperiod'}[1]) {
1146: return ($slots{$a}->{'uniqueperiod'}[1]
1147: cmp $slots{$b}->{'uniqueperiod'}[1]);
1148: }
1149: }
1150: return $slots{$a}->{'starttime'} <=> $slots{$b}->{'starttime'};
1151: };
1152:
1153: my %consumed;
1154: if (exists($show{'scheduled'}) || exists($show{'space'}) ) {
1155: %consumed=&Apache::lonnet::dump('slot_reservations',$cdom,$cnum);
1156: my ($tmp)=%consumed;
1157: if ($tmp =~ /^error: /) { undef(%consumed); }
1158: }
1159:
1160: foreach my $slot (sort $slotsort (keys(%slots))) {
1161: if (!&to_show($slot,$slots{$slot},$when,
1162: $env{'form.deleted'},$name_filter)) { next; }
1163: if (defined($slots{$slot}->{'type'})
1164: && $slots{$slot}->{'type'} ne 'schedulable_student') {
1165: #next;
1166: }
1167: my $description=&get_description($slot,$slots{$slot});
1168: my ($id_count,$ids);
1169:
1170: if (exists($show{'scheduled'}) || exists($show{'space'}) ) {
1171: my $re_str = "$slot\0";
1172: my @this_slot = grep(/^\Q$re_str\E/,keys(%consumed));
1173: $id_count = scalar(@this_slot);
1174: if (exists($show{'scheduled'})) {
1175: foreach my $entry (sort { $consumed{$a}{name} cmp
1176: $consumed{$b}{name} }
1177: (@this_slot)) {
1178: my (undef,$id)=split("\0",$entry);
1179: my ($uname,$udom) = split(':',$consumed{$entry}{'name'});
1180: $ids.= '<span class="LC_nobreak">';
1181: foreach my $item (@stu_display_order) {
1182: if ($stu_display{$item}) {
1183: if ($item eq 'fullname') {
1184: $ids.=$fullname->{"$uname:$udom"}.' ';
1185: } elsif ($item eq 'username') {
1186: $ids.="<tt>$uname:$udom</tt> ";
1187: }
1188: }
1189: }
1190: $ids.=&remove_link($slot,$entry,$uname,$udom,
1191: $consumed{$entry}{'symb'}).'</span><br />';
1192: }
1193: }
1194: }
1195:
1196: my $start=($slots{$slot}->{'starttime'}?
1197: &Apache::lonlocal::locallocaltime($slots{$slot}->{'starttime'}):'');
1198: my $end=($slots{$slot}->{'endtime'}?
1199: &Apache::lonlocal::locallocaltime($slots{$slot}->{'endtime'}):'');
1200: my $start_reserve=($slots{$slot}->{'startreserve'}?
1201: &Apache::lonlocal::locallocaltime($slots{$slot}->{'startreserve'}):'');
1202:
1203: my $unique;
1204: if (ref($slots{$slot}{'uniqueperiod'})) {
1205: $unique=localtime($slots{$slot}{'uniqueperiod'}[0]).', '.
1206: localtime($slots{$slot}{'uniqueperiod'}[1]);
1207: }
1208:
1209: my $title;
1210: if (exists($slots{$slot}{'symb'})) {
1211: my (undef,undef,$res)=
1212: &Apache::lonnet::decode_symb($slots{$slot}{'symb'});
1213: $res = &Apache::lonnet::clutter($res);
1214: $title = &Apache::lonnet::gettitle($slots{$slot}{'symb'});
1215: $title='<a href="'.$res.'?symb='.$slots{$slot}{'symb'}.'">'.$title.'</a>';
1216: }
1217:
1218: my $allowedsections;
1219: if (exists($show{'allowedsections'})) {
1220: $allowedsections =
1221: join(', ',sort(split(/\s*,\s*/,
1222: $slots{$slot}->{'allowedsections'})));
1223: }
1224:
1225: my @allowedusers;
1226: if (exists($show{'allowedusers'})) {
1227: @allowedusers= map {
1228: my ($uname,$udom)=split(/:/,$_);
1229: my $fullname=$name_cache{$_};
1230: if (!defined($fullname)) {
1231: $fullname = &Apache::loncommon::plainname($uname,$udom);
1232: $fullname =~s/\s/ /g;
1233: $name_cache{$_} = $fullname;
1234: }
1235: &Apache::loncommon::aboutmewrapper($fullname,$uname,$udom);
1236: } (sort(split(/\s*,\s*/,$slots{$slot}->{'allowedusers'})));
1237: }
1238: my $allowedusers=join(', ',@allowedusers);
1239:
1240: my @proctors;
1241: my $rowspan=1;
1242: my $colspan=1;
1243: if (exists($show{'proctor'})) {
1244: $rowspan=2;
1245: @proctors= map {
1246: my ($uname,$udom)=split(/:/,$_);
1247: my $fullname=$name_cache{$_};
1248: if (!defined($fullname)) {
1249: $fullname = &Apache::loncommon::plainname($uname,$udom);
1250: $fullname =~s/\s/ /g;
1251: $name_cache{$_} = $fullname;
1252: }
1253: &Apache::loncommon::aboutmewrapper($fullname,$uname,$udom);
1254: } (sort(split(/\s*,\s*/,$slots{$slot}->{'proctor'})));
1255: }
1256: my $proctors=join(', ',@proctors);
1257:
1258: my $edit=(<<"EDITLINK");
1259: <a href="/adm/helper/newslot.helper?name=$slot">Edit</a>
1260: EDITLINK
1261:
1262: my $delete=(<<"DELETELINK");
1263: <a href="/adm/slotrequest?command=delete&slotname=$slot">Delete</a>
1264: DELETELINK
1265:
1266: my $remove_all=&remove_link($slot,'remove all').'<br />';
1267:
1268: if ($ids ne '') { undef($delete); }
1269: if ($slots{$slot}{'type'} ne 'schedulable_student'
1270: || $ids eq '') {
1271: undef($remove_all);
1272: }
1273:
1274: my $row_start=&Apache::loncommon::start_data_table_row();
1275: my $row_end=&Apache::loncommon::end_data_table_row();
1276: $r->print($row_start.
1277: "\n<td rowspan=\"$rowspan\">$edit $delete</td>\n");
1278: if (exists($show{'name'})) {
1279: $colspan++;$r->print("<td>$slot</td>");
1280: }
1281: if (exists($show{'description'})) {
1282: $colspan++;$r->print("<td>$description</td>\n");
1283: }
1284: if (exists($show{'type'})) {
1285: $colspan++;$r->print("<td>$slots{$slot}->{'type'}</td>\n");
1286: }
1287: if (exists($show{'starttime'})) {
1288: $colspan++;$r->print("<td>$start</td>\n");
1289: }
1290: if (exists($show{'endtime'})) {
1291: $colspan++;$r->print("<td>$end</td>\n");
1292: }
1293: if (exists($show{'startreserve'})) {
1294: $colspan++;$r->print("<td>$start_reserve</td>\n");
1295: }
1296: if (exists($show{'secret'})) {
1297: $colspan++;$r->print("<td>$slots{$slot}{'secret'}</td>\n");
1298: }
1299: if (exists($show{'space'})) {
1300: my $display = $id_count;
1301: if ($slots{$slot}{'maxspace'}>0) {
1302: $display.='/'.$slots{$slot}{'maxspace'};
1303: if ($slots{$slot}{'maxspace'} <= $id_count) {
1304: $display = '<strong>'.$display.' (full) </strong>';
1305: }
1306: }
1307: $colspan++;$r->print("<td>$display</td>\n");
1308: }
1309: if (exists($show{'ip'})) {
1310: $colspan++;$r->print("<td>$slots{$slot}{'ip'}</td>\n");
1311: }
1312: if (exists($show{'symb'})) {
1313: $colspan++;$r->print("<td>$title</td>\n");
1314: }
1315: if (exists($show{'allowedsections'})) {
1316: $colspan++;$r->print("<td>$allowedsections</td>\n");
1317: }
1318: if (exists($show{'allowedusers'})) {
1319: $colspan++;$r->print("<td>$allowedusers</td>\n");
1320: }
1321: if (exists($show{'uniqueperiod'})) {
1322: $colspan++;$r->print("<td>$unique</td>\n");
1323: }
1324: if (exists($show{'scheduled'})) {
1325: $colspan++;$r->print("<td>$remove_all $ids</td>\n");
1326: }
1327: $r->print("$row_end\n");
1328: if (exists($show{'proctor'})) {
1329: $r->print(<<STUFF);
1330: $row_start
1331: <td colspan="$colspan">$proctors</td>
1332: $row_end
1333: STUFF
1334: }
1335: }
1336: $r->print('</table></form>');
1337: }
1338:
1339: sub upload_start {
1340: my ($r)=@_;
1341: $r->print(&Apache::grades::checkforfile_js());
1342: my $result.='<table width=100% border=0><tr bgcolor="#e6ffff"><td>'."\n";
1343: $result.=' <b>'.
1344: &mt('Specify a file containing the slot definitions.').
1345: '</b></td></tr>'."\n";
1346: $result.='<tr bgcolor="#ffffe6"><td>'."\n";
1347: my $upfile_select=&Apache::loncommon::upfile_select_html();
1348: my $ignore=&mt('Ignore First Line');
1349: $result.=<<ENDUPFORM;
1350: <form method="post" enctype="multipart/form-data" action="/adm/slotrequest" name="slotupload">
1351: <input type="hidden" name="command" value="csvuploadmap" />
1352: $upfile_select
1353: <br /><input type="button" onClick="javascript:checkUpload(this.form);" value="Upload Data" />
1354: <label><input type="checkbox" name="noFirstLine" />$ignore</label>
1355: </form>
1356: ENDUPFORM
1357: $result.='</td></tr></table>'."\n";
1358: $result.='</td></tr></table>'."\n";
1359: $r->print($result);
1360: }
1361:
1362: sub csvuploadmap_header {
1363: my ($r,$datatoken,$distotal)= @_;
1364: my $javascript;
1365: if ($env{'form.upfile_associate'} eq 'reverse') {
1366: $javascript=&csvupload_javascript_reverse_associate();
1367: } else {
1368: $javascript=&csvupload_javascript_forward_associate();
1369: }
1370:
1371: my $checked=(($env{'form.noFirstLine'})?' checked="checked"':'');
1372: my $ignore=&mt('Ignore First Line');
1373: my $help_field = &Apache::loncommon::help_open_topic('Slot SelectingField');
1374:
1375: $r->print(<<ENDPICK);
1376: <form method="post" enctype="multipart/form-data" action="/adm/slotrequest" name="slotupload">
1377: <h3>Identify fields $help_field</h3>
1378: Total number of records found in file: $distotal <hr />
1379: Enter as many fields as you can. The system will inform you and bring you back
1380: to this page if the data selected is insufficient to create the slots.<hr />
1381: <input type="button" value="Reverse Association" onClick="javascript:this.form.associate.value='Reverse Association';submit(this.form);" />
1382: <label><input type="checkbox" name="noFirstLine" $checked />$ignore</label>
1383: <input type="hidden" name="associate" value="" />
1384: <input type="hidden" name="datatoken" value="$datatoken" />
1385: <input type="hidden" name="fileupload" value="$env{'form.fileupload'}" />
1386: <input type="hidden" name="upfiletype" value="$env{'form.upfiletype'}" />
1387: <input type="hidden" name="upfile_associate"
1388: value="$env{'form.upfile_associate'}" />
1389: <input type="hidden" name="command" value="csvuploadassign" />
1390: <hr />
1391: <script type="text/javascript" language="Javascript">
1392: $javascript
1393: </script>
1394: ENDPICK
1395: return '';
1396:
1397: }
1398:
1399: sub csvuploadmap_footer {
1400: my ($request,$i,$keyfields) =@_;
1401: my $buttontext = &mt('Create Slots');
1402: $request->print(<<ENDPICK);
1403: </table>
1404: <input type="hidden" name="nfields" value="$i" />
1405: <input type="hidden" name="keyfields" value="$keyfields" />
1406: <input type="button" onClick="javascript:verify(this.form)" value="$buttontext" /><br />
1407: </form>
1408: ENDPICK
1409: }
1410:
1411: sub csvupload_javascript_reverse_associate {
1412: my $error1=&mt('You need to specify the name, starttime, endtime and a type');
1413: return(<<ENDPICK);
1414: function verify(vf) {
1415: var foundstart=0;
1416: var foundend=0;
1417: var foundname=0;
1418: var foundtype=0;
1419: for (i=0;i<=vf.nfields.value;i++) {
1420: tw=eval('vf.f'+i+'.selectedIndex');
1421: if (i==0 && tw!=0) { foundname=1; }
1422: if (i==1 && tw!=0) { foundtype=1; }
1423: if (i==2 && tw!=0) { foundstat=1; }
1424: if (i==3 && tw!=0) { foundend=1; }
1425: }
1426: if (foundstart==0 && foundend==0 && foundtype==0 && foundname==0) {
1427: alert('$error1');
1428: return;
1429: }
1430: vf.submit();
1431: }
1432: function flip(vf,tf) {
1433: }
1434: ENDPICK
1435: }
1436:
1437: sub csvupload_javascript_forward_associate {
1438: my $error1=&mt('You need to specify the name, starttime, endtime and a type');
1439: return(<<ENDPICK);
1440: function verify(vf) {
1441: var foundstart=0;
1442: var foundend=0;
1443: var foundname=0;
1444: var foundtype=0;
1445: for (i=0;i<=vf.nfields.value;i++) {
1446: tw=eval('vf.f'+i+'.selectedIndex');
1447: if (tw==1) { foundname=1; }
1448: if (tw==2) { foundtype=1; }
1449: if (tw==3) { foundstat=1; }
1450: if (tw==4) { foundend=1; }
1451: }
1452: if (foundstart==0 && foundend==0 && foundtype==0 && foundname==0) {
1453: alert('$error1');
1454: return;
1455: }
1456: vf.submit();
1457: }
1458: function flip(vf,tf) {
1459: }
1460: ENDPICK
1461: }
1462:
1463: sub csv_upload_map {
1464: my ($r)= @_;
1465:
1466: my $datatoken;
1467: if (!$env{'form.datatoken'}) {
1468: $datatoken=&Apache::loncommon::upfile_store($r);
1469: } else {
1470: $datatoken=$env{'form.datatoken'};
1471: &Apache::loncommon::load_tmp_file($r);
1472: }
1473: my @records=&Apache::loncommon::upfile_record_sep();
1474: if ($env{'form.noFirstLine'}) { shift(@records); }
1475: &csvuploadmap_header($r,$datatoken,$#records+1);
1476: my ($i,$keyfields);
1477: if (@records) {
1478: my @fields=&csvupload_fields();
1479:
1480: if ($env{'form.upfile_associate'} eq 'reverse') {
1481: &Apache::loncommon::csv_print_samples($r,\@records);
1482: $i=&Apache::loncommon::csv_print_select_table($r,\@records,
1483: \@fields);
1484: foreach (@fields) { $keyfields.=$_->[0].','; }
1485: chop($keyfields);
1486: } else {
1487: unshift(@fields,['none','']);
1488: $i=&Apache::loncommon::csv_samples_select_table($r,\@records,
1489: \@fields);
1490: my %sone=&Apache::loncommon::record_sep($records[0]);
1491: $keyfields=join(',',sort(keys(%sone)));
1492: }
1493: }
1494: &csvuploadmap_footer($r,$i,$keyfields);
1495:
1496: return '';
1497: }
1498:
1499: sub csvupload_fields {
1500: return (['name','Slot name'],
1501: ['type','Type of slot'],
1502: ['starttime','Start Time of slot'],
1503: ['endtime','End Time of slot'],
1504: ['startreserve','Reservation Start Time'],
1505: ['ip','IP or DNS restriction'],
1506: ['proctor','List of proctor ids'],
1507: ['description','Slot Description'],
1508: ['maxspace','Maximum number of reservations'],
1509: ['symb','Resource Restriction'],
1510: ['uniqueperiod','Date range of slot exclusion'],
1511: ['secret','Secret word proctor uses to validate'],
1512: ['allowedsections','Sections slot is restricted to'],
1513: ['allowedusers','Users slot is restricted to'],
1514: );
1515: }
1516:
1517: sub csv_upload_assign {
1518: my ($r,$mgr)= @_;
1519: &Apache::loncommon::load_tmp_file($r);
1520: my @slotdata = &Apache::loncommon::upfile_record_sep();
1521: if ($env{'form.noFirstLine'}) { shift(@slotdata); }
1522: my %fields=&Apache::grades::get_fields();
1523: $r->print('<h3>'.&mt('Creating Slots').'</h3>');
1524: my $cname=$env{'course.'.$env{'request.course.id'}.'.num'};
1525: my $cdom=$env{'course.'.$env{'request.course.id'}.'.domain'};
1526: my $countdone=0;
1527: my @errors;
1528: foreach my $slot (@slotdata) {
1529: my %slot;
1530: my %entries=&Apache::loncommon::record_sep($slot);
1531: my $domain;
1532: my $name=$entries{$fields{'name'}};
1533: if ($name=~/^\s*$/) {
1534: push(@errors,"Did not create slot with no name");
1535: next;
1536: }
1537: if ($name=~/\s/) {
1538: push(@errors,"$name not created -- Name must not contain spaces");
1539: next;
1540: }
1541: if ($name=~/\W/) {
1542: push(@errors,"$name not created -- Name must contain only letters, numbers and _");
1543: next;
1544: }
1545: if ($entries{$fields{'type'}}) {
1546: $slot{'type'}=$entries{$fields{'type'}};
1547: } else {
1548: $slot{'type'}='preassigned';
1549: }
1550: if ($slot{'type'} ne 'preassigned' &&
1551: $slot{'type'} ne 'schedulable_student') {
1552: push(@errors,"$name not created -- invalid type ($slot{'type'}) must be either preassigned or schedulable_student");
1553: next;
1554: }
1555: if ($entries{$fields{'starttime'}}) {
1556: $slot{'starttime'}=&UnixDate($entries{$fields{'starttime'}},"%s");
1557: }
1558: if ($entries{$fields{'endtime'}}) {
1559: $slot{'endtime'}=&UnixDate($entries{$fields{'endtime'}},"%s");
1560: }
1561:
1562: # start/endtime must be defined and greater than zero
1563: if (!$slot{'starttime'}) {
1564: push(@errors,"$name not created -- Invalid start time");
1565: next;
1566: }
1567: if (!$slot{'endtime'}) {
1568: push(@errors,"$name not created -- Invalid end time");
1569: next;
1570: }
1571: if ($slot{'starttime'} > $slot{'endtime'}) {
1572: push(@errors,"$name not created -- Slot starts after it ends");
1573: next;
1574: }
1575:
1576: if ($entries{$fields{'startreserve'}}) {
1577: $slot{'startreserve'}=
1578: &UnixDate($entries{$fields{'startreserve'}},"%s");
1579: }
1580: if (defined($slot{'startreserve'})
1581: && $slot{'startreserve'} > $slot{'starttime'}) {
1582: push(@errors,"$name not created -- Slot's reservation start time is after the slot's start time.");
1583: next;
1584: }
1585:
1586: foreach my $key ('ip','proctor','description','maxspace',
1587: 'secret','symb') {
1588: if ($entries{$fields{$key}}) {
1589: $slot{$key}=$entries{$fields{$key}};
1590: }
1591: }
1592:
1593: if ($entries{$fields{'uniqueperiod'}}) {
1594: my ($start,$end)=split(',',$entries{$fields{'uniqueperiod'}});
1595: my @times=(&UnixDate($start,"%s"),
1596: &UnixDate($end,"%s"));
1597: $slot{'uniqueperiod'}=\@times;
1598: }
1599: if (defined($slot{'uniqueperiod'})
1600: && $slot{'uniqueperiod'}[0] > $slot{'uniqueperiod'}[1]) {
1601: push(@errors,"$name not created -- Slot's unique period start time is later than the unique period's end time.");
1602: next;
1603: }
1604:
1605: &Apache::lonnet::cput('slots',{$name=>\%slot},$cdom,$cname);
1606: $r->print('.');
1607: $r->rflush();
1608: $countdone++;
1609: }
1610: $r->print('<p>'.&mt('Created [quant,_1,slot]',$countdone)."\n".'</p>');
1611: foreach my $error (@errors) {
1612: $r->print('<p><span class="LC_warning">'.$error.'</span></p>'."\n");
1613: }
1614: &show_table($r,$mgr);
1615: return '';
1616: }
1617:
1618: sub handler {
1619: my $r=shift;
1620:
1621: &Apache::loncommon::content_type($r,'text/html');
1622: &Apache::loncommon::no_cache($r);
1623: if ($r->header_only()) {
1624: $r->send_http_header();
1625: return OK;
1626: }
1627:
1628: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'});
1629:
1630: my $vgr=&Apache::lonnet::allowed('vgr',$env{'request.course.id'});
1631: my $mgr=&Apache::lonnet::allowed('mgr',$env{'request.course.id'});
1632: my $title='Requesting Another Worktime';
1633: if ($env{'form.command'} =~ /^(showslots|uploadstart|csvuploadmap|csvuploadassign)$/ && $vgr eq 'F') {
1634: $title = 'Managing Slots';
1635: }
1636: &start_page($r,$title);
1637:
1638: if ($env{'form.command'} eq 'showslots' && $vgr eq 'F') {
1639: &show_table($r,$mgr);
1640: } elsif ($env{'form.command'} eq 'remove_registration' && $mgr eq 'F') {
1641: &remove_registration($r);
1642: } elsif ($env{'form.command'} eq 'release' && $mgr eq 'F') {
1643: if ($env{'form.entry'} eq 'remove all') {
1644: &release_all_slot($r,$mgr);
1645: } else {
1646: &release_slot($r,undef,undef,undef,$mgr);
1647: }
1648: } elsif ($env{'form.command'} eq 'delete' && $mgr eq 'F') {
1649: &delete_slot($r);
1650: } elsif ($env{'form.command'} eq 'uploadstart' && $mgr eq 'F') {
1651: &upload_start($r);
1652: } elsif ($env{'form.command'} eq 'csvuploadmap' && $mgr eq 'F') {
1653: &csv_upload_map($r);
1654: } elsif ($env{'form.command'} eq 'csvuploadassign' && $mgr eq 'F') {
1655: if ($env{'form.associate'} ne 'Reverse Association') {
1656: &csv_upload_assign($r,$mgr);
1657: } else {
1658: if ( $env{'form.upfile_associate'} ne 'reverse' ) {
1659: $env{'form.upfile_associate'} = 'reverse';
1660: } else {
1661: $env{'form.upfile_associate'} = 'forward';
1662: }
1663: &csv_upload_map($r);
1664: }
1665: } else {
1666: my $symb=&unescape($env{'form.symb'});
1667: if (!defined($symb)) {
1668: &fail($r,'not_valid');
1669: return OK;
1670: }
1671: my (undef,undef,$res)=&Apache::lonnet::decode_symb($symb);
1672: my $useslots = &Apache::lonnet::EXT("resource.0.useslots",$symb);
1673: if ($useslots ne 'resource'
1674: && $useslots ne 'map'
1675: && $useslots ne 'map_map') {
1676: &fail($r,'not_available');
1677: return OK;
1678: }
1679: $env{'request.symb'}=$symb;
1680: my $type = ($res =~ /\.task$/) ? 'Task'
1681: : 'problem';
1682: my ($status) = &Apache::lonhomework::check_slot_access('0',$type);
1683: if ($status eq 'CAN_ANSWER' ||
1684: $status eq 'NEEDS_CHECKIN' ||
1685: $status eq 'WAITING_FOR_GRADE') {
1686: &fail($r,'not_allowed');
1687: return OK;
1688: }
1689: if ($env{'form.requestattempt'}) {
1690: &show_choices($r,$symb);
1691: } elsif ($env{'form.command'} eq 'release') {
1692: &release_slot($r,$symb);
1693: } elsif ($env{'form.command'} eq 'get') {
1694: &get_slot($r,$symb);
1695: } elsif ($env{'form.command'} eq 'change') {
1696: if (&get_slot($r,$symb,$env{'form.releaseslot'},1)) {
1697: &release_slot($r,$symb,$env{'form.releaseslot'});
1698: }
1699: } else {
1700: $r->print('<p>'.&mt('Unknown command: [_1]',$env{'form.command'}).'</p>');
1701: }
1702: }
1703: &end_page($r);
1704: return OK;
1705: }
1706:
1707: 1;
1708: __END__
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