1: # The LearningOnline Network with CAPA
2: # Handler for requesting to have slots added to a students record
3: #
4: # $Id: slotrequest.pm,v 1.84 2008/12/11 14:55:15 bisitz 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: 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: $env{'user.name'});
179: if (&Apache::lonnet::error($student)
180: || &Apache::lonnet::error($course)) {
181: return 'error: Unable to determine current status';
182: }
183: foreach my $slot (split(/:/,$student), split(/:/, $course)) {
184: $used_slots{$slot}=1;
185: }
186: }
187:
188: if (!ref($slots)) {
189: my ($cnum,$cdom)=&get_course();
190: my %slots=&Apache::lonnet::get('slots', [keys(%used_slots)], $cdom, $cnum);
191: if (&Apache::lonnet::error(%slots)) {
192: return 'error: Unable to determine current status';
193: }
194: $slots = \%slots;
195: }
196:
197: my %consumed_uniqueperiods;
198: foreach my $slot_name (keys(%used_slots)) {
199: next if (!defined($slots->{$slot_name}) ||
200: !ref($slots->{$slot_name}));
201:
202: next if (!defined($slots->{$slot_name}{'uniqueperiod'}) ||
203: !ref($slots->{$slot_name}{'uniqueperiod'}));
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);
217: if (&Apache::lonnet::error(%$consumed_uniqueperiods)) {
218: return 'error: Unable to determine current status';
219: }
220: }
221:
222: my ($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}};
225: if (!
226: ($start < $new_uniq_start && $end < $new_uniq_start) ||
227: ($start > $new_uniq_end && $end > $new_uniq_end )) {
228: return $slot_name;
229: }
230: }
231: return undef;
232:
233: }
234:
235: sub make_reservation {
236: my ($slot_name,$slot,$symb)=@_;
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 />");
243:
244: my $use_slots = &Apache::lonnet::EXT("resource.0.useslots",$symb,
245: $env{'user.domain'},$env{'user.name'});
246: &Apache::lonxml::debug("use_slots is $use_slots<br />");
247:
248: if (&Apache::lonnet::error($value)
249: || &Apache::lonnet::error($use_slots)) {
250: return 'error: Unable to determine current status';
251: }
252:
253: my $parm_symb = $symb;
254: my $parm_level = 1;
255: if ($use_slots eq 'map' || $use_slots eq 'map_map') {
256: my ($map) = &Apache::lonnet::decode_symb($symb);
257: $parm_symb = &Apache::lonnet::symbread($map);
258: $parm_level = 2;
259: }
260:
261: foreach my $other_slot (split(/:/, $value)) {
262: if ($other_slot eq $slot_name) {
263: my %consumed=&Apache::lonnet::dump('slot_reservations', $cdom,
264: $cnum, "^$slot_name\0");
265: if (&Apache::lonnet::error($value)) {
266: return 'error: Unable to determine current status';
267: }
268: my $me=$env{'user.name'}.':'.$env{'user.domain'};
269: foreach my $key (keys(%consumed)) {
270: if ($consumed{$key}->{'name'} eq $me) {
271: my $num=(split('\0',$key))[1];
272: return -$num;
273: }
274: }
275: }
276: }
277:
278: my $max=$slot->{'maxspace'};
279: if (!defined($max)) { $max=99999; }
280:
281: my (@ids)=&get_reservation_ids($slot_name);
282: if (&Apache::lonnet::error(@ids)) {
283: return 'error: Unable to determine current status';
284: }
285: my $last=0;
286: foreach my $id (@ids) {
287: my $num=(split('\0',$id))[1];
288: if ($num > $last) { $last=$num; }
289: }
290:
291: my $wanted=$last+1;
292: &Apache::lonxml::debug("wanted $wanted<br />");
293: if (scalar(@ids) >= $max) {
294: # full up
295: return undef;
296: }
297:
298: my %reservation=('name' => $env{'user.name'}.':'.$env{'user.domain'},
299: 'timestamp' => time,
300: 'symb' => $parm_symb);
301:
302: my $success=&Apache::lonnet::newput('slot_reservations',
303: {"$slot_name\0$wanted" =>
304: \%reservation},
305: $cdom, $cnum);
306:
307: if ($success eq 'ok') {
308: my $new_value=$slot_name;
309: if ($value) {
310: $new_value=$value.':'.$new_value;
311: }
312: my $result=&Apache::lonparmset::storeparm_by_symb($symb,
313: '0_availablestudent',
314: $parm_level, $new_value,
315: 'string',
316: $env{'user.name'},
317: $env{'user.domain'});
318: &Apache::lonxml::debug("hrrm $result");
319: return $wanted;
320: }
321:
322: # someone else got it
323: return undef;
324: }
325:
326: sub remove_registration {
327: my ($r) = @_;
328: if ($env{'form.entry'} ne 'remove all') {
329: return &remove_registration_user($r);
330: }
331: my $slot_name = $env{'form.slotname'};
332: my %slot=&Apache::lonnet::get_slot($slot_name);
333:
334: my ($cnum,$cdom)=&get_course();
335: my %consumed=&Apache::lonnet::dump('slot_reservations',$cdom,$cnum,
336: "^$slot_name\0");
337: if (&Apache::lonnet::error(%consumed)) {
338: $r->print("<p><span class=\"LC_error\">".&mt('A network error has occurred.').'</span></p>');
339: return;
340: }
341: if (!%consumed) {
342: $r->print("<p>".&mt('Slot <tt>[_1]</tt> has no reservations.',
343: $slot_name)."</p>");
344: return;
345: }
346:
347: my @names = map { $consumed{$_}{'name'} } (sort(keys(%consumed)));
348: my $names = join(' ',@names);
349:
350: my $msg = &mt('Remove all of [_1] from slot [_2]?',$names,$slot_name);
351: &remove_registration_confirmation($r,$msg,['entry','slotname']);
352: }
353:
354: sub remove_registration_user {
355: my ($r) = @_;
356:
357: my $slot_name = $env{'form.slotname'};
358:
359: my $name = &Apache::loncommon::plainname($env{'form.uname'},
360: $env{'form.udom'});
361:
362: my $title = &Apache::lonnet::gettitle($env{'form.symb'});
363:
364: my $msg = &mt('Remove [_1] from slot [_2] for [_3]',
365: $name,$slot_name,$title);
366:
367: &remove_registration_confirmation($r,$msg,['uname','udom','slotname',
368: 'entry','symb']);
369: }
370:
371: sub remove_registration_confirmation {
372: my ($r,$msg,$inputs) =@_;
373:
374: my $hidden_input;
375: foreach my $parm (@{$inputs}) {
376: $hidden_input .=
377: '<input type="hidden" name="'.$parm.'" value="'
378: .&HTML::Entities::encode($env{'form.'.$parm},'"<>&\'').'" />'."\n";
379: }
380: my %lt = &Apache::lonlocal::texthash('yes' => 'Yes',
381: 'no' => 'No',);
382: $r->print(<<"END_CONFIRM");
383: <p> $msg </p>
384: <form action="/adm/slotrequest" method="post">
385: <input type="hidden" name="command" value="release" />
386: <input type="hidden" name="button" value="yes" />
387: $hidden_input
388: <input type="submit" value="$lt{'yes'}" />
389: </form>
390: <form action="/adm/slotrequest" method="post">
391: <input type="hidden" name="command" value="showslots" />
392: <input type="submit" value="$lt{'no'}" />
393: </form>
394: END_CONFIRM
395:
396: }
397:
398: sub release_all_slot {
399: my ($r,$mgr)=@_;
400:
401: my $slot_name = $env{'form.slotname'};
402:
403: my ($cnum,$cdom)=&get_course();
404:
405: my %consumed=&Apache::lonnet::dump('slot_reservations',$cdom,$cnum,
406: "^$slot_name\0");
407:
408: $r->print('<p>'.&mt('Releasing reservations').'</p>');
409:
410: foreach my $entry (sort { $consumed{$a}{'name'} cmp
411: $consumed{$b}{'name'} } (keys(%consumed))) {
412: my ($uname,$udom) = split(':',$consumed{$entry}{'name'});
413: my ($result,$msg) =
414: &release_reservation($slot_name,$uname,$udom,
415: $consumed{$entry}{'symb'},$mgr);
416: $r->print("<p>$msg</p>");
417: $r->rflush();
418: }
419: $r->print('<p><a href="/adm/slotrequest?command=showslots">'.
420: &mt('Return to slot list').'</a></p>');
421: &return_link($r);
422: }
423:
424: sub release_slot {
425: my ($r,$symb,$slot_name,$inhibit_return_link,$mgr)=@_;
426:
427: if ($slot_name eq '') { $slot_name=$env{'form.slotname'}; }
428:
429: my ($uname,$udom) = ($env{'user.name'}, $env{'user.domain'});
430: if ($mgr eq 'F'
431: && defined($env{'form.uname'}) && defined($env{'form.udom'})) {
432: ($uname,$udom) = ($env{'form.uname'}, $env{'form.udom'});
433: }
434:
435: if ($mgr eq 'F'
436: && defined($env{'form.symb'})) {
437: $symb = &unescape($env{'form.symb'});
438: }
439:
440: my ($result,$msg) =
441: &release_reservation($slot_name,$uname,$udom,$symb,$mgr);
442: $r->print("<p>$msg</p>");
443:
444: if ($mgr eq 'F') {
445: $r->print('<p><a href="/adm/slotrequest?command=showslots">'.
446: &mt('Return to slot list').'</a></p>');
447: }
448:
449: if (!$inhibit_return_link) { &return_link($r); }
450: return $result;
451: }
452:
453: sub release_reservation {
454: my ($slot_name,$uname,$udom,$symb,$mgr) = @_;
455: my %slot=&Apache::lonnet::get_slot($slot_name);
456: my $description=&get_description($slot_name,\%slot);
457:
458: if ($mgr ne 'F') {
459: if ($slot{'starttime'} < time) {
460: return (0,&mt('Not allowed to release Reservation: [_1], as it has already ended.',$description));
461: }
462: }
463:
464: # if the reservation symb is for a map get a resource in that map
465: # to check slot parameters on
466: my $navmap=Apache::lonnavmaps::navmap->new;
467: my $passed_resource = $navmap->getBySymb($symb);
468: if ($passed_resource->is_map()) {
469: my ($a_resource) =
470: $navmap->retrieveResources($passed_resource,
471: sub {$_[0]->is_problem()},0,1);
472: $symb = $a_resource->symb();
473: }
474:
475: # get parameter string, check for existance, rebuild string with the slot
476: my $student = &Apache::lonnet::EXT("resource.0.availablestudent",
477: $symb,$udom,$uname);
478: my @slots = split(/:/,$student);
479:
480: my @new_slots;
481: foreach my $exist_slot (@slots) {
482: if ($exist_slot eq $slot_name) { next; }
483: push(@new_slots,$exist_slot);
484: }
485: my $new_param = join(':',@new_slots);
486:
487: my ($cnum,$cdom)=&get_course();
488:
489: # get slot reservations, check if user has one, if so remove reservation
490: my %consumed=&Apache::lonnet::dump('slot_reservations',$cdom,$cnum,
491: "^$slot_name\0");
492: foreach my $entry (keys(%consumed)) {
493: if ( $consumed{$entry}->{'name'} eq ($uname.':'.$udom) ) {
494: &Apache::lonnet::del('slot_reservations',[$entry],
495: $cdom,$cnum);
496: }
497: }
498:
499: my $use_slots = &Apache::lonnet::EXT("resource.0.useslots",
500: $symb,$udom,$uname);
501: &Apache::lonxml::debug("use_slots is $use_slots<br />");
502:
503: if (&Apache::lonnet::error($use_slots)) {
504: return (0,'error: Unable to determine current status');
505: }
506:
507: my $parm_level = 1;
508: if ($use_slots eq 'map' || $use_slots eq 'map_map') {
509: $parm_level = 2;
510: }
511: # store new parameter string
512: my $result=&Apache::lonparmset::storeparm_by_symb($symb,
513: '0_availablestudent',
514: $parm_level, $new_param,
515: 'string', $uname, $udom);
516:
517: my $msg;
518: if ($mgr eq 'F') {
519: $msg = &mt('Released Reservation for user: [_1]',"$uname:$udom");
520: } else {
521: $msg = &mt('Released Reservation: [_1]',$description);
522: }
523: return (1,$msg);
524: }
525:
526: sub delete_slot {
527: my ($r)=@_;
528:
529: my $slot_name = $env{'form.slotname'};
530: my %slot=&Apache::lonnet::get_slot($slot_name);
531:
532: my ($cnum,$cdom)=&get_course();
533: my %consumed=&Apache::lonnet::dump('slot_reservations',$cdom,$cnum,
534: "^$slot_name\0");
535: my ($tmp) = %consumed;
536: if ($tmp =~ /error: 2/) { undef(%consumed); }
537:
538: if (%slot && !%consumed) {
539: $slot{'type'} = 'deleted';
540: my $ret = &Apache::lonnet::cput('slots', {$slot_name => \%slot},
541: $cdom, $cnum);
542: if ($ret eq 'ok') {
543: $r->print("<p>Slot <tt>$slot_name</tt> marked as deleted.</p>");
544: } else {
545: $r->print("<p><span class=\"LC_error\"> An error ($ret) occurse when attempting to delete Slot <tt>$slot_name</tt>.</span></p>");
546: }
547: } else {
548: if (%consumed) {
549: $r->print("<p>Slot <tt>$slot_name</tt> has active reservations.</p>");
550: } else {
551: $r->print("<p>Slot <tt>$slot_name</tt> does not exist.</p>");
552: }
553: }
554: $r->print('<p><a href="/adm/slotrequest?command=showslots">'.
555: &mt('Return to slot list').'</a></p>');
556: &return_link($r);
557: }
558:
559: sub return_link {
560: my ($r) = @_;
561: $r->print('<p><a href="/adm/flip?postdata=return:">'.
562: &mt('Return to last resource').'</a></p>');
563: }
564:
565: sub get_slot {
566: my ($r,$symb,$conflictable_slot,$inhibit_return_link)=@_;
567:
568: my %slot=&Apache::lonnet::get_slot($env{'form.slotname'});
569: my $slot_name=&check_for_conflict($symb,$env{'form.slotname'},\%slot);
570:
571: if ($slot_name =~ /^error: (.*)/) {
572: $r->print('<p><span class="LC_error">'
573: .&mt('An error occurred while attempting to make a reservation. ([_1])',$1)
574: .'</span></p>');
575: &return_link($r);
576: return 0;
577: }
578: if ($slot_name && $slot_name ne $conflictable_slot) {
579: my %slot=&Apache::lonnet::get_slot($slot_name);
580: my $description1=&get_description($slot_name,\%slot);
581: %slot=&Apache::lonnet::get_slot($env{'form.slotname'});
582: my $description2=&get_description($env{'form.slotname'},\%slot);
583: $r->print("<p>Already have a reservation: $description1</p>");
584: if ($slot_name ne $env{'form.slotname'}) {
585: $r->print(<<STUFF);
586: <form method="post" action="/adm/slotrequest">
587: <input type="hidden" name="symb" value="$env{'form.symb'}" />
588: <input type="hidden" name="slotname" value="$env{'form.slotname'}" />
589: <input type="hidden" name="releaseslot" value="$slot_name" />
590: <input type="hidden" name="command" value="change" />
591: STUFF
592: $r->print("<p>You can either ");
593: $r->print(<<STUFF);
594: <input type="submit" name="change" value="Change" />
595: STUFF
596: $r->print(' your reservation from <b>'.$description1.'</b> to <b>'.
597: $description2.
598: '</b> <br />or </p>');
599: &return_link($r);
600: $r->print(<<STUFF);
601: </form>
602: STUFF
603: } else {
604: &return_link($r);
605: }
606: return 0;
607: }
608:
609: my $reserved=&make_reservation($env{'form.slotname'},
610: \%slot,$symb);
611: my $description=&get_description($env{'form.slotname'},\%slot);
612: if (defined($reserved)) {
613: my $retvalue = 0;
614: if ($slot_name =~ /^error: (.*)/) {
615: $r->print('<p><span class="LC_error">'
616: .&mt('An error occurred while attempting to make a reservation. ([_1])',$1)
617: .'</span></p>');
618: } elsif ($reserved > -1) {
619: $r->print("<p>Success: $description</p>");
620: $retvalue = 1;
621: } elsif ($reserved < 0) {
622: $r->print("<p>Already reserved: $description</p>");
623: }
624: if (!$inhibit_return_link) { &return_link($r); }
625: return 1;
626: }
627:
628: my %lt=('request'=>"Availibility list",
629: 'try' =>'Try again');
630: %lt=&Apache::lonlocal::texthash(%lt);
631:
632: my $extra_input;
633: if ($conflictable_slot) {
634: $extra_input='<input type="hidden" name="releaseslot" value="'.$env{'form.slotname'}.'" />';
635: }
636:
637: $r->print(<<STUFF);
638: <p> <span class="LC_warning">Failed</span> to reserve a spot for $description. </p>
639: <p>
640: <form method="post" action="/adm/slotrequest">
641: <input type="submit" name="Try Again" value="$lt{'try'}" />
642: <input type="hidden" name="symb" value="$env{'form.symb'}" />
643: <input type="hidden" name="slotname" value="$env{'form.slotname'}" />
644: <input type="hidden" name="command" value="$env{'form.command'}" />
645: $extra_input
646: </form>
647: ?
648: </p>
649: <p>
650: or
651: <form method="post" action="/adm/slotrequest">
652: <input type="hidden" name="symb" value="$env{'form.symb'}" />
653: <input type="submit" name="requestattempt" value="$lt{'request'}" />
654: </form>
655: </p>
656: or
657: STUFF
658:
659: if (!$inhibit_return_link) { &return_link($r); }
660: return 0;
661: }
662:
663: sub allowed_slot {
664: my ($slot_name,$slot,$symb,$slots,$consumed_uniqueperiods)=@_;
665:
666: #already started
667: if ($slot->{'starttime'} < time) {
668: return 0;
669: }
670: &Apache::lonxml::debug("$slot_name starttime good");
671:
672: #already ended
673: if ($slot->{'endtime'} < time) {
674: return 0;
675: }
676: &Apache::lonxml::debug("$slot_name endtime good");
677:
678: # not allowed to pick this one
679: if (defined($slot->{'type'})
680: && $slot->{'type'} ne 'schedulable_student') {
681: return 0;
682: }
683: &Apache::lonxml::debug("$slot_name type good");
684:
685: # reserve time not yet started
686: if ($slot->{'startreserve'} > time) {
687: return 0;
688: }
689: &Apache::lonxml::debug("$slot_name reserve good");
690:
691: my $userallowed=0;
692: # its for a different set of users
693: if (defined($slot->{'allowedsections'})) {
694: if (!defined($env{'request.role.sec'})
695: && grep(/^No section assigned$/,
696: split(',',$slot->{'allowedsections'}))) {
697: $userallowed=1;
698: }
699: if (defined($env{'request.role.sec'})
700: && grep(/^\Q$env{'request.role.sec'}\E$/,
701: split(',',$slot->{'allowedsections'}))) {
702: $userallowed=1;
703: }
704: if (defined($env{'request.course.groups'})) {
705: my @groups = split(/:/,$env{'request.course.groups'});
706: my @allowed_sec = split(',',$slot->{'allowedsections'});
707: foreach my $group (@groups) {
708: if (grep {$_ eq $group} (@allowed_sec)) {
709: $userallowed=1;
710: last;
711: }
712: }
713: }
714: }
715: &Apache::lonxml::debug("$slot_name sections is $userallowed");
716:
717: # its for a different set of users
718: if (defined($slot->{'allowedusers'})
719: && grep(/^\Q$env{'user.name'}:$env{'user.domain'}\E$/,
720: split(',',$slot->{'allowedusers'}))) {
721: $userallowed=1;
722: }
723:
724: if (!defined($slot->{'allowedusers'})
725: && !defined($slot->{'allowedsections'})) {
726: $userallowed=1;
727: }
728:
729: &Apache::lonxml::debug("$slot_name user is $userallowed");
730: return 0 if (!$userallowed);
731:
732: # not allowed for this resource
733: if (defined($slot->{'symb'})
734: && $slot->{'symb'} ne $symb) {
735: return 0;
736: }
737:
738: my $conflict = &check_for_conflict($symb,$slot_name,$slot,$slots,
739: $consumed_uniqueperiods);
740: if ($conflict) {
741: if ($slots->{$conflict}{'starttime'} < time) {
742: return 0;
743: }
744: }
745: &Apache::lonxml::debug("$slot_name symb good");
746: return 1;
747: }
748:
749: sub get_description {
750: my ($slot_name,$slot)=@_;
751: my $description=$slot->{'description'};
752: if (!defined($description)) {
753: $description=&mt('[_1] From [_2] to [_3]',$slot_name,
754: &Apache::lonlocal::locallocaltime($slot->{'starttime'}),
755: &Apache::lonlocal::locallocaltime($slot->{'endtime'}));
756: }
757: return $description;
758: }
759:
760: sub show_choices {
761: my ($r,$symb)=@_;
762:
763: my ($cnum,$cdom)=&get_course();
764: my %slots=&Apache::lonnet::dump('slots',$cdom,$cnum);
765: my $consumed_uniqueperiods = &get_consumed_uniqueperiods(\%slots);
766: my $available;
767: $r->print('<table border="1">');
768: &Apache::lonxml::debug("Checking Slots");
769: my @got_slots=&check_for_reservation($symb,'allslots');
770: foreach my $slot (sort
771: { return $slots{$a}->{'starttime'} <=> $slots{$b}->{'starttime'} }
772: (keys(%slots))) {
773:
774: &Apache::lonxml::debug("Checking Slot $slot");
775: next if (!&allowed_slot($slot,$slots{$slot},undef,\%slots,
776: $consumed_uniqueperiods));
777:
778: $available++;
779:
780: my $description=&get_description($slot,$slots{$slot});
781:
782: my $form=&mt('Unavailable');
783: if ((grep(/^\Q$slot\E$/,@got_slots)) ||
784: &space_available($slot,$slots{$slot},$symb)) {
785: my $text=&mt('Select');
786: my $command='get';
787: if (grep(/^\Q$slot\E$/,@got_slots)) {
788: $text=&mt('Drop Reservation');
789: $command='release';
790: } else {
791: my $conflict = &check_for_conflict($symb,$slot,$slots{$slot},
792: \%slots,
793: $consumed_uniqueperiods);
794: if ($conflict) {
795: $text=&mt('Change Reservation');
796: $command='get';
797: }
798: }
799: my $escsymb=&escape($symb);
800: $form=<<STUFF;
801: <form method="post" action="/adm/slotrequest">
802: <input type="submit" name="Select" value="$text" />
803: <input type="hidden" name="symb" value="$escsymb" />
804: <input type="hidden" name="slotname" value="$slot" />
805: <input type="hidden" name="command" value="$command" />
806: </form>
807: STUFF
808: }
809: $r->print(<<STUFF);
810: <tr>
811: <td>$form</td>
812: <td>$description</td>
813: </tr>
814: STUFF
815: }
816:
817: if (!$available) {
818: $r->print('<tr><td>No available times. <a href="/adm/flip?postdata=return:">'.
819: &mt('Return to last resource').'</a></td></tr>');
820: }
821: $r->print('</table>');
822: }
823:
824: sub to_show {
825: my ($slotname,$slot,$when,$deleted,$name) = @_;
826: my $time=time;
827: my $week=60*60*24*7;
828:
829: if ($deleted eq 'hide' && $slot->{'type'} eq 'deleted') {
830: return 0;
831: }
832:
833: if ($name && $name->{'value'} =~ /\w/) {
834: if ($name->{'type'} eq 'substring') {
835: if ($slotname !~ /\Q$name->{'value'}\E/) {
836: return 0;
837: }
838: }
839: if ($name->{'type'} eq 'exact') {
840: if ($slotname eq $name->{'value'}) {
841: return 0;
842: }
843: }
844: }
845:
846: if ($when eq 'any') {
847: return 1;
848: } elsif ($when eq 'now') {
849: if ($time > $slot->{'starttime'} &&
850: $time < $slot->{'endtime'}) {
851: return 1;
852: }
853: return 0;
854: } elsif ($when eq 'nextweek') {
855: if ( ($time < $slot->{'starttime'} &&
856: ($time+$week) > $slot->{'starttime'})
857: ||
858: ($time < $slot->{'endtime'} &&
859: ($time+$week) > $slot->{'endtime'}) ) {
860: return 1;
861: }
862: return 0;
863: } elsif ($when eq 'lastweek') {
864: if ( ($time > $slot->{'starttime'} &&
865: ($time-$week) < $slot->{'starttime'})
866: ||
867: ($time > $slot->{'endtime'} &&
868: ($time-$week) < $slot->{'endtime'}) ) {
869: return 1;
870: }
871: return 0;
872: } elsif ($when eq 'willopen') {
873: if ($time < $slot->{'starttime'}) {
874: return 1;
875: }
876: return 0;
877: } elsif ($when eq 'wereopen') {
878: if ($time > $slot->{'endtime'}) {
879: return 1;
880: }
881: return 0;
882: }
883:
884: return 1;
885: }
886:
887: sub remove_link {
888: my ($slotname,$entry,$uname,$udom,$symb) = @_;
889:
890: my $remove = &mt('Remove');
891:
892: if ($entry eq 'remove all') {
893: $remove = &mt('Remove All');
894: undef($uname);
895: undef($udom);
896: }
897:
898: $slotname = &escape($slotname);
899: $entry = &escape($entry);
900: $uname = &escape($uname);
901: $udom = &escape($udom);
902: $symb = &escape($symb);
903:
904: return <<"END_LINK";
905: <a href="/adm/slotrequest?command=remove_registration&slotname=$slotname&entry=$entry&uname=$uname&udom=$udom&symb=$symb"
906: >($remove)</a>
907: END_LINK
908:
909: }
910:
911: sub show_table {
912: my ($r,$mgr)=@_;
913:
914: my ($cnum,$cdom)=&get_course();
915: my %slots=&Apache::lonnet::dump('slots',$cdom,$cnum);
916: if ( (keys(%slots))[0] =~ /^error: 2 /) {
917: undef(%slots);
918: }
919: my $available;
920: if ($mgr eq 'F') {
921: # FIXME: This line should be deleted once Slots uses breadcrumbs
922: $r->print(&Apache::loncommon::help_open_topic('Slot About', 'Help on slots'));
923:
924: $r->print('<div>');
925: $r->print('<form method="post" action="/adm/slotrequest">
926: <input type="hidden" name="command" value="uploadstart" />
927: <input type="submit" name="start" value="'.&mt('Upload Slot List').'" />
928: </form>');
929: $r->print(&Apache::loncommon::help_open_topic('Slot CommaDelimited'));
930: $r->print('<form method="post" action="/adm/helper/newslot.helper">
931: <input type="submit" name="newslot" value="'.&mt('Create a New Slot').'" />
932: </form>');
933: $r->print(&Apache::loncommon::help_open_topic('Slot AddInterface'));
934: $r->print('</div>');
935: }
936:
937: my %Saveable_Parameters = ('show' => 'array',
938: 'when' => 'scalar',
939: 'order' => 'scalar',
940: 'deleted' => 'scalar',
941: 'name_filter_type' => 'scalar',
942: 'name_filter_value' => 'scalar',
943: );
944: &Apache::loncommon::store_course_settings('slotrequest',
945: \%Saveable_Parameters);
946: &Apache::loncommon::restore_course_settings('slotrequest',
947: \%Saveable_Parameters);
948: &Apache::grades::init_perm();
949: my ($classlist,$section,$fullname)=&Apache::grades::getclasslist('all');
950: &Apache::grades::reset_perm();
951:
952: # what to display filtering
953: my %show_fields=&Apache::lonlocal::texthash(
954: 'name' => 'Slot Name',
955: 'description' => 'Description',
956: 'type' => 'Type',
957: 'starttime' => 'Start time',
958: 'endtime' => 'End Time',
959: 'startreserve' => 'Time students can start reserving',
960: 'secret' => 'Secret Word',
961: 'space' => '# of students/max',
962: 'ip' => 'IP or DNS restrictions',
963: 'symb' => 'Resource slot is restricted to.',
964: 'allowedsections' => 'Sections slot is restricted to.',
965: 'allowedusers' => 'Users slot is restricted to.',
966: 'uniqueperiod' => 'Period of time slot is unique',
967: 'scheduled' => 'Scheduled Students',
968: 'proctor' => 'List of proctors');
969: my @show_order=('name','description','type','starttime','endtime',
970: 'startreserve','secret','space','ip','symb',
971: 'allowedsections','allowedusers','uniqueperiod',
972: 'scheduled','proctor');
973: my @show =
974: (exists($env{'form.show'})) ? &Apache::loncommon::get_env_multiple('form.show')
975: : keys(%show_fields);
976: my %show = map { $_ => 1 } (@show);
977:
978: #when filtering setup
979: my %when_fields=&Apache::lonlocal::texthash(
980: 'now' => 'Open now',
981: 'nextweek' => 'Open within the next week',
982: 'lastweek' => 'Were open last week',
983: 'willopen' => 'Will open later',
984: 'wereopen' => 'Were open',
985: 'any' => 'Anytime',
986: );
987: my @when_order=('any','now','nextweek','lastweek','willopen','wereopen');
988: $when_fields{'select_form_order'} = \@when_order;
989: my $when = (exists($env{'form.when'})) ? $env{'form.when'}
990: : 'now';
991:
992: #display of students setup
993: my %stu_display_fields=
994: &Apache::lonlocal::texthash('username' => 'User name',
995: 'fullname' => 'Full name',
996: );
997: my @stu_display_order=('fullname','username');
998: my @stu_display =
999: (exists($env{'form.studisplay'})) ? &Apache::loncommon::get_env_multiple('form.studisplay')
1000: : keys(%stu_display_fields);
1001: my %stu_display = map { $_ => 1 } (@stu_display);
1002:
1003: #name filtering setup
1004: my %name_filter_type_fields=
1005: &Apache::lonlocal::texthash('substring' => 'Substring',
1006: 'exact' => 'Exact',
1007: #'reg' => 'Regular Expression',
1008: );
1009: my @name_filter_type_order=('substring','exact');
1010:
1011: $name_filter_type_fields{'select_form_order'} = \@name_filter_type_order;
1012: my $name_filter_type =
1013: (exists($env{'form.name_filter_type'})) ? $env{'form.name_filter_type'}
1014: : 'substring';
1015: my $name_filter = {'type' => $name_filter_type,
1016: 'value' => $env{'form.name_filter_value'},};
1017:
1018:
1019: #deleted slot filtering
1020: #default to hide if no value
1021: $env{'form.deleted'} ||= 'hide';
1022: my $hide_radio =
1023: &Apache::lonhtmlcommon::radio('deleted',$env{'form.deleted'},'hide');
1024: my $show_radio =
1025: &Apache::lonhtmlcommon::radio('deleted',$env{'form.deleted'},'show');
1026:
1027: $r->print('<form method="post" action="/adm/slotrequest">
1028: <input type="hidden" name="command" value="showslots" />');
1029: $r->print('<div>');
1030: $r->print('<table class="inline">
1031: <tr><th>'.&mt('Show').'</th>
1032: <th>'.&mt('Student Display').'</th>
1033: <th>'.&mt('Open').'</th>
1034: <th>'.&mt('Slot Name Filter').'</th>
1035: <th>'.&mt('Options').'</th>
1036: </tr>
1037: <tr><td>'.&Apache::loncommon::multiple_select_form('show',\@show,6,\%show_fields,\@show_order).
1038: '</td>
1039: <td>
1040: '.&Apache::loncommon::multiple_select_form('studisplay',\@stu_display,
1041: 6,\%stu_display_fields,
1042: \@stu_display_order).'
1043: </td>
1044: <td>'.&Apache::loncommon::select_form($when,'when',%when_fields).
1045: '</td>
1046: <td>'.&Apache::loncommon::select_form($name_filter_type,
1047: 'name_filter_type',
1048: %name_filter_type_fields).
1049: '<br />'.
1050: &Apache::lonhtmlcommon::textbox('name_filter_value',
1051: $env{'form.name_filter_value'},
1052: 15).
1053: '</td>
1054: <td>
1055: <table>
1056: <tr>
1057: <td rowspan="2">Deleted slots:</td>
1058: <td><label>'.$show_radio.'Show</label></td>
1059: </tr>
1060: <tr>
1061: <td><label>'.$hide_radio.'Hide</label></td>
1062: </tr>
1063: </table>
1064: </td>
1065: </tr>
1066: </table>');
1067: $r->print('</div>');
1068: $r->print('<p><input type="submit" name="start" value="'.&mt('Update Display').'" /></p>');
1069: my $linkstart='<a href="/adm/slotrequest?command=showslots&order=';
1070: $r->print(&Apache::loncommon::start_data_table().
1071: &Apache::loncommon::start_data_table_header_row().'
1072: <th></th>');
1073: foreach my $which (@show_order) {
1074: if ($which ne 'proctor' && exists($show{$which})) {
1075: $r->print('<th>'.$linkstart.$which.'">'.$show_fields{$which}.'</a></th>');
1076: }
1077: }
1078: $r->print(&Apache::loncommon::end_data_table_header_row());
1079:
1080: my %name_cache;
1081: my $slotsort = sub {
1082: if ($env{'form.order'}=~/^(type|description|endtime|startreserve|ip|symb|allowedsections|allowedusers)$/) {
1083: if (lc($slots{$a}->{$env{'form.order'}})
1084: ne lc($slots{$b}->{$env{'form.order'}})) {
1085: return (lc($slots{$a}->{$env{'form.order'}})
1086: cmp lc($slots{$b}->{$env{'form.order'}}));
1087: }
1088: } elsif ($env{'form.order'} eq 'space') {
1089: if ($slots{$a}{'maxspace'} ne $slots{$b}{'maxspace'}) {
1090: return ($slots{$a}{'maxspace'} cmp $slots{$b}{'maxspace'});
1091: }
1092: } elsif ($env{'form.order'} eq 'name') {
1093: if (lc($a) cmp lc($b)) {
1094: return lc($a) cmp lc($b);
1095: }
1096: } elsif ($env{'form.order'} eq 'uniqueperiod') {
1097:
1098: if ($slots{$a}->{'uniqueperiod'}[0]
1099: ne $slots{$b}->{'uniqueperiod'}[0]) {
1100: return ($slots{$a}->{'uniqueperiod'}[0]
1101: cmp $slots{$b}->{'uniqueperiod'}[0]);
1102: }
1103: if ($slots{$a}->{'uniqueperiod'}[1]
1104: ne $slots{$b}->{'uniqueperiod'}[1]) {
1105: return ($slots{$a}->{'uniqueperiod'}[1]
1106: cmp $slots{$b}->{'uniqueperiod'}[1]);
1107: }
1108: }
1109: return $slots{$a}->{'starttime'} <=> $slots{$b}->{'starttime'};
1110: };
1111:
1112: my %consumed;
1113: if (exists($show{'scheduled'}) || exists($show{'space'}) ) {
1114: %consumed=&Apache::lonnet::dump('slot_reservations',$cdom,$cnum);
1115: my ($tmp)=%consumed;
1116: if ($tmp =~ /^error: /) { undef(%consumed); }
1117: }
1118:
1119: foreach my $slot (sort $slotsort (keys(%slots))) {
1120: if (!&to_show($slot,$slots{$slot},$when,
1121: $env{'form.deleted'},$name_filter)) { next; }
1122: if (defined($slots{$slot}->{'type'})
1123: && $slots{$slot}->{'type'} ne 'schedulable_student') {
1124: #next;
1125: }
1126: my $description=&get_description($slot,$slots{$slot});
1127: my ($id_count,$ids);
1128:
1129: if (exists($show{'scheduled'}) || exists($show{'space'}) ) {
1130: my $re_str = "$slot\0";
1131: my @this_slot = grep(/^\Q$re_str\E/,keys(%consumed));
1132: $id_count = scalar(@this_slot);
1133: if (exists($show{'scheduled'})) {
1134: foreach my $entry (sort { $consumed{$a}{name} cmp
1135: $consumed{$b}{name} }
1136: (@this_slot)) {
1137: my (undef,$id)=split("\0",$entry);
1138: my ($uname,$udom) = split(':',$consumed{$entry}{'name'});
1139: $ids.= '<span class="LC_nobreak">';
1140: foreach my $item (@stu_display_order) {
1141: if ($stu_display{$item}) {
1142: if ($item eq 'fullname') {
1143: $ids.=$fullname->{"$uname:$udom"}.' ';
1144: } elsif ($item eq 'username') {
1145: $ids.="<tt>$uname:$udom</tt> ";
1146: }
1147: }
1148: }
1149: $ids.=&remove_link($slot,$entry,$uname,$udom,
1150: $consumed{$entry}{'symb'}).'</span><br />';
1151: }
1152: }
1153: }
1154:
1155: my $start=($slots{$slot}->{'starttime'}?
1156: &Apache::lonlocal::locallocaltime($slots{$slot}->{'starttime'}):'');
1157: my $end=($slots{$slot}->{'endtime'}?
1158: &Apache::lonlocal::locallocaltime($slots{$slot}->{'endtime'}):'');
1159: my $start_reserve=($slots{$slot}->{'startreserve'}?
1160: &Apache::lonlocal::locallocaltime($slots{$slot}->{'startreserve'}):'');
1161:
1162: my $unique;
1163: if (ref($slots{$slot}{'uniqueperiod'})) {
1164: $unique=localtime($slots{$slot}{'uniqueperiod'}[0]).', '.
1165: localtime($slots{$slot}{'uniqueperiod'}[1]);
1166: }
1167:
1168: my $title;
1169: if (exists($slots{$slot}{'symb'})) {
1170: my (undef,undef,$res)=
1171: &Apache::lonnet::decode_symb($slots{$slot}{'symb'});
1172: $res = &Apache::lonnet::clutter($res);
1173: $title = &Apache::lonnet::gettitle($slots{$slot}{'symb'});
1174: $title='<a href="'.$res.'?symb='.$slots{$slot}{'symb'}.'">'.$title.'</a>';
1175: }
1176:
1177: my $allowedsections;
1178: if (exists($show{'allowedsections'})) {
1179: $allowedsections =
1180: join(', ',sort(split(/\s*,\s*/,
1181: $slots{$slot}->{'allowedsections'})));
1182: }
1183:
1184: my @allowedusers;
1185: if (exists($show{'allowedusers'})) {
1186: @allowedusers= map {
1187: my ($uname,$udom)=split(/:/,$_);
1188: my $fullname=$name_cache{$_};
1189: if (!defined($fullname)) {
1190: $fullname = &Apache::loncommon::plainname($uname,$udom);
1191: $fullname =~s/\s/ /g;
1192: $name_cache{$_} = $fullname;
1193: }
1194: &Apache::loncommon::aboutmewrapper($fullname,$uname,$udom);
1195: } (sort(split(/\s*,\s*/,$slots{$slot}->{'allowedusers'})));
1196: }
1197: my $allowedusers=join(', ',@allowedusers);
1198:
1199: my @proctors;
1200: my $rowspan=1;
1201: my $colspan=1;
1202: if (exists($show{'proctor'})) {
1203: $rowspan=2;
1204: @proctors= map {
1205: my ($uname,$udom)=split(/:/,$_);
1206: my $fullname=$name_cache{$_};
1207: if (!defined($fullname)) {
1208: $fullname = &Apache::loncommon::plainname($uname,$udom);
1209: $fullname =~s/\s/ /g;
1210: $name_cache{$_} = $fullname;
1211: }
1212: &Apache::loncommon::aboutmewrapper($fullname,$uname,$udom);
1213: } (sort(split(/\s*,\s*/,$slots{$slot}->{'proctor'})));
1214: }
1215: my $proctors=join(', ',@proctors);
1216:
1217: my $edit=(<<"EDITLINK");
1218: <a href="/adm/helper/newslot.helper?name=$slot">Edit</a>
1219: EDITLINK
1220:
1221: my $delete=(<<"DELETELINK");
1222: <a href="/adm/slotrequest?command=delete&slotname=$slot">Delete</a>
1223: DELETELINK
1224:
1225: my $remove_all=&remove_link($slot,'remove all').'<br />';
1226:
1227: if ($ids ne '') { undef($delete); }
1228: if ($slots{$slot}{'type'} ne 'schedulable_student'
1229: || $ids eq '') {
1230: undef($remove_all);
1231: }
1232:
1233: my $row_start=&Apache::loncommon::start_data_table_row();
1234: my $row_end=&Apache::loncommon::end_data_table_row();
1235: $r->print($row_start.
1236: "\n<td rowspan=\"$rowspan\">$edit $delete</td>\n");
1237: if (exists($show{'name'})) {
1238: $colspan++;$r->print("<td>$slot</td>");
1239: }
1240: if (exists($show{'description'})) {
1241: $colspan++;$r->print("<td>$description</td>\n");
1242: }
1243: if (exists($show{'type'})) {
1244: $colspan++;$r->print("<td>$slots{$slot}->{'type'}</td>\n");
1245: }
1246: if (exists($show{'starttime'})) {
1247: $colspan++;$r->print("<td>$start</td>\n");
1248: }
1249: if (exists($show{'endtime'})) {
1250: $colspan++;$r->print("<td>$end</td>\n");
1251: }
1252: if (exists($show{'startreserve'})) {
1253: $colspan++;$r->print("<td>$start_reserve</td>\n");
1254: }
1255: if (exists($show{'secret'})) {
1256: $colspan++;$r->print("<td>$slots{$slot}{'secret'}</td>\n");
1257: }
1258: if (exists($show{'space'})) {
1259: my $display = $id_count;
1260: if ($slots{$slot}{'maxspace'}>0) {
1261: $display.='/'.$slots{$slot}{'maxspace'};
1262: if ($slots{$slot}{'maxspace'} <= $id_count) {
1263: $display = '<strong>'.$display.' (full) </strong>';
1264: }
1265: }
1266: $colspan++;$r->print("<td>$display</td>\n");
1267: }
1268: if (exists($show{'ip'})) {
1269: $colspan++;$r->print("<td>$slots{$slot}{'ip'}</td>\n");
1270: }
1271: if (exists($show{'symb'})) {
1272: $colspan++;$r->print("<td>$title</td>\n");
1273: }
1274: if (exists($show{'allowedsections'})) {
1275: $colspan++;$r->print("<td>$allowedsections</td>\n");
1276: }
1277: if (exists($show{'allowedusers'})) {
1278: $colspan++;$r->print("<td>$allowedusers</td>\n");
1279: }
1280: if (exists($show{'uniqueperiod'})) {
1281: $colspan++;$r->print("<td>$unique</td>\n");
1282: }
1283: if (exists($show{'scheduled'})) {
1284: $colspan++;$r->print("<td>$remove_all $ids</td>\n");
1285: }
1286: $r->print("$row_end\n");
1287: if (exists($show{'proctor'})) {
1288: $r->print(<<STUFF);
1289: $row_start
1290: <td colspan="$colspan">$proctors</td>
1291: $row_end
1292: STUFF
1293: }
1294: }
1295: $r->print('</table></form>');
1296: }
1297:
1298: sub upload_start {
1299: my ($r)=@_;
1300: $r->print(&Apache::grades::checkforfile_js());
1301: my $result.='<table width=100% border=0><tr bgcolor="#e6ffff"><td>'."\n";
1302: $result.=' <b>'.
1303: &mt('Specify a file containing the slot definitions.').
1304: '</b></td></tr>'."\n";
1305: $result.='<tr bgcolor=#ffffe6><td>'."\n";
1306: my $upfile_select=&Apache::loncommon::upfile_select_html();
1307: my $ignore=&mt('Ignore First Line');
1308: $result.=<<ENDUPFORM;
1309: <form method="post" enctype="multipart/form-data" action="/adm/slotrequest" name="slotupload">
1310: <input type="hidden" name="command" value="csvuploadmap" />
1311: $upfile_select
1312: <br /><input type="button" onClick="javascript:checkUpload(this.form);" value="Upload Data" />
1313: <label><input type="checkbox" name="noFirstLine" />$ignore</label>
1314: </form>
1315: ENDUPFORM
1316: $result.='</td></tr></table>'."\n";
1317: $result.='</td></tr></table>'."\n";
1318: $r->print($result);
1319: }
1320:
1321: sub csvuploadmap_header {
1322: my ($r,$datatoken,$distotal)= @_;
1323: my $javascript;
1324: if ($env{'form.upfile_associate'} eq 'reverse') {
1325: $javascript=&csvupload_javascript_reverse_associate();
1326: } else {
1327: $javascript=&csvupload_javascript_forward_associate();
1328: }
1329:
1330: my $checked=(($env{'form.noFirstLine'})?' checked="checked"':'');
1331: my $ignore=&mt('Ignore First Line');
1332: my $help_field = &Apache::loncommon::help_open_topic('Slot SelectingField');
1333:
1334: $r->print(<<ENDPICK);
1335: <form method="post" enctype="multipart/form-data" action="/adm/slotrequest" name="slotupload">
1336: <h3>Identify fields $help_field</h3>
1337: Total number of records found in file: $distotal <hr />
1338: Enter as many fields as you can. The system will inform you and bring you back
1339: to this page if the data selected is insufficient to create the slots.<hr />
1340: <input type="button" value="Reverse Association" onClick="javascript:this.form.associate.value='Reverse Association';submit(this.form);" />
1341: <label><input type="checkbox" name="noFirstLine" $checked />$ignore</label>
1342: <input type="hidden" name="associate" value="" />
1343: <input type="hidden" name="datatoken" value="$datatoken" />
1344: <input type="hidden" name="fileupload" value="$env{'form.fileupload'}" />
1345: <input type="hidden" name="upfiletype" value="$env{'form.upfiletype'}" />
1346: <input type="hidden" name="upfile_associate"
1347: value="$env{'form.upfile_associate'}" />
1348: <input type="hidden" name="command" value="csvuploadassign" />
1349: <hr />
1350: <script type="text/javascript" language="Javascript">
1351: $javascript
1352: </script>
1353: ENDPICK
1354: return '';
1355:
1356: }
1357:
1358: sub csvuploadmap_footer {
1359: my ($request,$i,$keyfields) =@_;
1360: $request->print(<<ENDPICK);
1361: </table>
1362: <input type="hidden" name="nfields" value="$i" />
1363: <input type="hidden" name="keyfields" value="$keyfields" />
1364: <input type="button" onClick="javascript:verify(this.form)" value="Create Slots" /><br />
1365: </form>
1366: ENDPICK
1367: }
1368:
1369: sub csvupload_javascript_reverse_associate {
1370: my $error1=&mt('You need to specify the name, starttime, endtime and a type');
1371: return(<<ENDPICK);
1372: function verify(vf) {
1373: var foundstart=0;
1374: var foundend=0;
1375: var foundname=0;
1376: var foundtype=0;
1377: for (i=0;i<=vf.nfields.value;i++) {
1378: tw=eval('vf.f'+i+'.selectedIndex');
1379: if (i==0 && tw!=0) { foundname=1; }
1380: if (i==1 && tw!=0) { foundtype=1; }
1381: if (i==2 && tw!=0) { foundstat=1; }
1382: if (i==3 && tw!=0) { foundend=1; }
1383: }
1384: if (foundstart==0 && foundend==0 && foundtype==0 && foundname==0) {
1385: alert('$error1');
1386: return;
1387: }
1388: vf.submit();
1389: }
1390: function flip(vf,tf) {
1391: }
1392: ENDPICK
1393: }
1394:
1395: sub csvupload_javascript_forward_associate {
1396: my $error1=&mt('You need to specify the name, starttime, endtime and a type');
1397: return(<<ENDPICK);
1398: function verify(vf) {
1399: var foundstart=0;
1400: var foundend=0;
1401: var foundname=0;
1402: var foundtype=0;
1403: for (i=0;i<=vf.nfields.value;i++) {
1404: tw=eval('vf.f'+i+'.selectedIndex');
1405: if (tw==1) { foundname=1; }
1406: if (tw==2) { foundtype=1; }
1407: if (tw==3) { foundstat=1; }
1408: if (tw==4) { foundend=1; }
1409: }
1410: if (foundstart==0 && foundend==0 && foundtype==0 && foundname==0) {
1411: alert('$error1');
1412: return;
1413: }
1414: vf.submit();
1415: }
1416: function flip(vf,tf) {
1417: }
1418: ENDPICK
1419: }
1420:
1421: sub csv_upload_map {
1422: my ($r)= @_;
1423:
1424: my $datatoken;
1425: if (!$env{'form.datatoken'}) {
1426: $datatoken=&Apache::loncommon::upfile_store($r);
1427: } else {
1428: $datatoken=$env{'form.datatoken'};
1429: &Apache::loncommon::load_tmp_file($r);
1430: }
1431: my @records=&Apache::loncommon::upfile_record_sep();
1432: if ($env{'form.noFirstLine'}) { shift(@records); }
1433: &csvuploadmap_header($r,$datatoken,$#records+1);
1434: my ($i,$keyfields);
1435: if (@records) {
1436: my @fields=&csvupload_fields();
1437:
1438: if ($env{'form.upfile_associate'} eq 'reverse') {
1439: &Apache::loncommon::csv_print_samples($r,\@records);
1440: $i=&Apache::loncommon::csv_print_select_table($r,\@records,
1441: \@fields);
1442: foreach (@fields) { $keyfields.=$_->[0].','; }
1443: chop($keyfields);
1444: } else {
1445: unshift(@fields,['none','']);
1446: $i=&Apache::loncommon::csv_samples_select_table($r,\@records,
1447: \@fields);
1448: my %sone=&Apache::loncommon::record_sep($records[0]);
1449: $keyfields=join(',',sort(keys(%sone)));
1450: }
1451: }
1452: &csvuploadmap_footer($r,$i,$keyfields);
1453:
1454: return '';
1455: }
1456:
1457: sub csvupload_fields {
1458: return (['name','Slot name'],
1459: ['type','Type of slot'],
1460: ['starttime','Start Time of slot'],
1461: ['endtime','End Time of slot'],
1462: ['startreserve','Reservation Start Time'],
1463: ['ip','IP or DNS restriction'],
1464: ['proctor','List of proctor ids'],
1465: ['description','Slot Description'],
1466: ['maxspace','Maximum number of reservations'],
1467: ['symb','Resource Restriction'],
1468: ['uniqueperiod','Date range of slot exclusion'],
1469: ['secret','Secret word proctor uses to validate'],
1470: ['allowedsections','Sections slot is restricted to'],
1471: ['allowedusers','Users slot is restricted to'],
1472: );
1473: }
1474:
1475: sub csv_upload_assign {
1476: my ($r,$mgr)= @_;
1477: &Apache::loncommon::load_tmp_file($r);
1478: my @slotdata = &Apache::loncommon::upfile_record_sep();
1479: if ($env{'form.noFirstLine'}) { shift(@slotdata); }
1480: my %fields=&Apache::grades::get_fields();
1481: $r->print('<h3>Creating Slots</h3>');
1482: my $cname=$env{'course.'.$env{'request.course.id'}.'.num'};
1483: my $cdom=$env{'course.'.$env{'request.course.id'}.'.domain'};
1484: my $countdone=0;
1485: my @errors;
1486: foreach my $slot (@slotdata) {
1487: my %slot;
1488: my %entries=&Apache::loncommon::record_sep($slot);
1489: my $domain;
1490: my $name=$entries{$fields{'name'}};
1491: if ($name=~/^\s*$/) {
1492: push(@errors,"Did not create slot with no name");
1493: next;
1494: }
1495: if ($name=~/\s/) {
1496: push(@errors,"$name not created -- Name must not contain spaces");
1497: next;
1498: }
1499: if ($name=~/\W/) {
1500: push(@errors,"$name not created -- Name must contain only letters, numbers and _");
1501: next;
1502: }
1503: if ($entries{$fields{'type'}}) {
1504: $slot{'type'}=$entries{$fields{'type'}};
1505: } else {
1506: $slot{'type'}='preassigned';
1507: }
1508: if ($slot{'type'} ne 'preassigned' &&
1509: $slot{'type'} ne 'schedulable_student') {
1510: push(@errors,"$name not created -- invalid type ($slot{'type'}) must be either preassigned or schedulable_student");
1511: next;
1512: }
1513: if ($entries{$fields{'starttime'}}) {
1514: $slot{'starttime'}=&UnixDate($entries{$fields{'starttime'}},"%s");
1515: }
1516: if ($entries{$fields{'endtime'}}) {
1517: $slot{'endtime'}=&UnixDate($entries{$fields{'endtime'}},"%s");
1518: }
1519:
1520: # start/endtime must be defined and greater than zero
1521: if (!$slot{'starttime'}) {
1522: push(@errors,"$name not created -- Invalid start time");
1523: next;
1524: }
1525: if (!$slot{'endtime'}) {
1526: push(@errors,"$name not created -- Invalid end time");
1527: next;
1528: }
1529: if ($slot{'starttime'} > $slot{'endtime'}) {
1530: push(@errors,"$name not created -- Slot starts after it ends");
1531: next;
1532: }
1533:
1534: if ($entries{$fields{'startreserve'}}) {
1535: $slot{'startreserve'}=
1536: &UnixDate($entries{$fields{'startreserve'}},"%s");
1537: }
1538: if (defined($slot{'startreserve'})
1539: && $slot{'startreserve'} > $slot{'starttime'}) {
1540: push(@errors,"$name not created -- Slot's reservation start time is after the slot's start time.");
1541: next;
1542: }
1543:
1544: foreach my $key ('ip','proctor','description','maxspace',
1545: 'secret','symb') {
1546: if ($entries{$fields{$key}}) {
1547: $slot{$key}=$entries{$fields{$key}};
1548: }
1549: }
1550:
1551: if ($entries{$fields{'uniqueperiod'}}) {
1552: my ($start,$end)=split(',',$entries{$fields{'uniqueperiod'}});
1553: my @times=(&UnixDate($start,"%s"),
1554: &UnixDate($end,"%s"));
1555: $slot{'uniqueperiod'}=\@times;
1556: }
1557: if (defined($slot{'uniqueperiod'})
1558: && $slot{'uniqueperiod'}[0] > $slot{'uniqueperiod'}[1]) {
1559: push(@errors,"$name not created -- Slot's unique period start time is later than the unique period's end time.");
1560: next;
1561: }
1562:
1563: &Apache::lonnet::cput('slots',{$name=>\%slot},$cdom,$cname);
1564: $r->print('.');
1565: $r->rflush();
1566: $countdone++;
1567: }
1568: $r->print("<p>Created $countdone slots\n</p>");
1569: foreach my $error (@errors) {
1570: $r->print("<p><span class=\"LC_warning\">$error</span></p>\n");
1571: }
1572: &show_table($r,$mgr);
1573: return '';
1574: }
1575:
1576: sub handler {
1577: my $r=shift;
1578:
1579: &Apache::loncommon::content_type($r,'text/html');
1580: &Apache::loncommon::no_cache($r);
1581: if ($r->header_only()) {
1582: $r->send_http_header();
1583: return OK;
1584: }
1585:
1586: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'});
1587:
1588: my $vgr=&Apache::lonnet::allowed('vgr',$env{'request.course.id'});
1589: my $mgr=&Apache::lonnet::allowed('mgr',$env{'request.course.id'});
1590: my $title='Requesting Another Worktime';
1591: if ($env{'form.command'} =~ /^(showslots|uploadstart|csvuploadmap|csvuploadassign)$/ && $vgr eq 'F') {
1592: $title = 'Managing Slots';
1593: }
1594: &start_page($r,$title);
1595:
1596: if ($env{'form.command'} eq 'showslots' && $vgr eq 'F') {
1597: &show_table($r,$mgr);
1598: } elsif ($env{'form.command'} eq 'remove_registration' && $mgr eq 'F') {
1599: &remove_registration($r);
1600: } elsif ($env{'form.command'} eq 'release' && $mgr eq 'F') {
1601: if ($env{'form.entry'} eq 'remove all') {
1602: &release_all_slot($r,$mgr);
1603: } else {
1604: &release_slot($r,undef,undef,undef,$mgr);
1605: }
1606: } elsif ($env{'form.command'} eq 'delete' && $mgr eq 'F') {
1607: &delete_slot($r);
1608: } elsif ($env{'form.command'} eq 'uploadstart' && $mgr eq 'F') {
1609: &upload_start($r);
1610: } elsif ($env{'form.command'} eq 'csvuploadmap' && $mgr eq 'F') {
1611: &csv_upload_map($r);
1612: } elsif ($env{'form.command'} eq 'csvuploadassign' && $mgr eq 'F') {
1613: if ($env{'form.associate'} ne 'Reverse Association') {
1614: &csv_upload_assign($r,$mgr);
1615: } else {
1616: if ( $env{'form.upfile_associate'} ne 'reverse' ) {
1617: $env{'form.upfile_associate'} = 'reverse';
1618: } else {
1619: $env{'form.upfile_associate'} = 'forward';
1620: }
1621: &csv_upload_map($r);
1622: }
1623: } else {
1624: my $symb=&unescape($env{'form.symb'});
1625: if (!defined($symb)) {
1626: &fail($r,'not_valid');
1627: return OK;
1628: }
1629: my (undef,undef,$res)=&Apache::lonnet::decode_symb($symb);
1630: my $useslots = &Apache::lonnet::EXT("resource.0.useslots",$symb);
1631: if ($useslots ne 'resource'
1632: && $useslots ne 'map'
1633: && $useslots ne 'map_map') {
1634: &fail($r,'not_available');
1635: return OK;
1636: }
1637: $env{'request.symb'}=$symb;
1638: my $type = ($res =~ /\.task$/) ? 'Task'
1639: : 'problem';
1640: my ($status) = &Apache::lonhomework::check_slot_access('0',$type);
1641: if ($status eq 'CAN_ANSWER' ||
1642: $status eq 'NEEDS_CHECKIN' ||
1643: $status eq 'WAITING_FOR_GRADE') {
1644: &fail($r,'not_allowed');
1645: return OK;
1646: }
1647: if ($env{'form.requestattempt'}) {
1648: &show_choices($r,$symb);
1649: } elsif ($env{'form.command'} eq 'release') {
1650: &release_slot($r,$symb);
1651: } elsif ($env{'form.command'} eq 'get') {
1652: &get_slot($r,$symb);
1653: } elsif ($env{'form.command'} eq 'change') {
1654: if (&get_slot($r,$symb,$env{'form.releaseslot'},1)) {
1655: &release_slot($r,$symb,$env{'form.releaseslot'});
1656: }
1657: } else {
1658: $r->print("<p>Unknown command: ".$env{'form.command'}."</p>");
1659: }
1660: }
1661: &end_page($r);
1662: return OK;
1663: }
1664:
1665: 1;
1666: __END__
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