1: # The LearningOnline Network with CAPA
2: # Handler for requesting to have slots added to a students record
3: #
4: # $Id: slotrequest.pm,v 1.80 2007/09/21 22:37:23 albertel 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 occured.').'</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 @slots = split(/:/,&Apache::lonnet::EXT("resource.0.availablestudent",
477: $symb,$udom,$uname));
478:
479: my @new_slots;
480: foreach my $exist_slot (@slots) {
481: if ($exist_slot eq $slot_name) { next; }
482: push(@new_slots,$exist_slot);
483: }
484: my $new_param = join(':',@new_slots);
485:
486: my ($cnum,$cdom)=&get_course();
487:
488: # get slot reservations, check if user has one, if so remove reservation
489: my %consumed=&Apache::lonnet::dump('slot_reservations',$cdom,$cnum,
490: "^$slot_name\0");
491: foreach my $entry (keys(%consumed)) {
492: if ( $consumed{$entry}->{'name'} eq ($uname.':'.$udom) ) {
493: &Apache::lonnet::del('slot_reservations',[$entry],
494: $cdom,$cnum);
495: }
496: }
497:
498: my $use_slots = &Apache::lonnet::EXT("resource.0.useslots",
499: $symb,$udom,$uname);
500: &Apache::lonxml::debug("use_slots is $use_slots<br />");
501:
502: if (&Apache::lonnet::error($use_slots)) {
503: return (0,'error: Unable to determine current status');
504: }
505:
506: my $parm_level = 1;
507: if ($use_slots eq 'map' || $use_slots eq 'map_map') {
508: $parm_level = 2;
509: }
510: # store new parameter string
511: my $result=&Apache::lonparmset::storeparm_by_symb($symb,
512: '0_availablestudent',
513: $parm_level, $new_param,
514: 'string', $uname, $udom);
515:
516: my $msg;
517: if ($mgr eq 'F') {
518: $msg = &mt('Released Reservation for user: [_1]',"$uname:$udom");
519: } else {
520: $msg = &mt('Released Reservation: [_1]',$description);
521: }
522: return (1,$msg);
523: }
524:
525: sub delete_slot {
526: my ($r)=@_;
527:
528: my $slot_name = $env{'form.slotname'};
529: my %slot=&Apache::lonnet::get_slot($slot_name);
530:
531: my ($cnum,$cdom)=&get_course();
532: my %consumed=&Apache::lonnet::dump('slot_reservations',$cdom,$cnum,
533: "^$slot_name\0");
534: my ($tmp) = %consumed;
535: if ($tmp =~ /error: 2/) { undef(%consumed); }
536:
537: if (%slot && !%consumed) {
538: $slot{'type'} = 'deleted';
539: my $ret = &Apache::lonnet::cput('slots', {$slot_name => \%slot},
540: $cdom, $cnum);
541: if ($ret eq 'ok') {
542: $r->print("<p>Slot <tt>$slot_name</tt> marked as deleted.</p>");
543: } else {
544: $r->print("<p><span class=\"LC_error\"> An error ($ret) occurse when attempting to delete Slot <tt>$slot_name</tt>.</span></p>");
545: }
546: } else {
547: if (%consumed) {
548: $r->print("<p>Slot <tt>$slot_name</tt> has active reservations.</p>");
549: } else {
550: $r->print("<p>Slot <tt>$slot_name</tt> does not exist.</p>");
551: }
552: }
553: $r->print('<p><a href="/adm/slotrequest?command=showslots">'.
554: &mt('Return to slot list').'</a></p>');
555: &return_link($r);
556: }
557:
558: sub return_link {
559: my ($r) = @_;
560: $r->print('<p><a href="/adm/flip?postdata=return:">'.
561: &mt('Return to last resource').'</a></p>');
562: }
563:
564: sub get_slot {
565: my ($r,$symb,$conflictable_slot,$inhibit_return_link)=@_;
566:
567: my %slot=&Apache::lonnet::get_slot($env{'form.slotname'});
568: my $slot_name=&check_for_conflict($symb,$env{'form.slotname'},\%slot);
569:
570: if ($slot_name =~ /^error: (.*)/) {
571: $r->print("<p><span class=\"LC_error\">An error occured while attempting to make a reservation. ($1)</span></p>");
572: &return_link($r);
573: return 0;
574: }
575: if ($slot_name && $slot_name ne $conflictable_slot) {
576: my %slot=&Apache::lonnet::get_slot($slot_name);
577: my $description1=&get_description($slot_name,\%slot);
578: %slot=&Apache::lonnet::get_slot($env{'form.slotname'});
579: my $description2=&get_description($env{'form.slotname'},\%slot);
580: $r->print("<p>Already have a reservation: $description1</p>");
581: if ($slot_name ne $env{'form.slotname'}) {
582: $r->print(<<STUFF);
583: <form method="post" action="/adm/slotrequest">
584: <input type="hidden" name="symb" value="$env{'form.symb'}" />
585: <input type="hidden" name="slotname" value="$env{'form.slotname'}" />
586: <input type="hidden" name="releaseslot" value="$slot_name" />
587: <input type="hidden" name="command" value="change" />
588: STUFF
589: $r->print("<p>You can either ");
590: $r->print(<<STUFF);
591: <input type="submit" name="change" value="Change" />
592: STUFF
593: $r->print(' your reservation from <b>'.$description1.'</b> to <b>'.
594: $description2.
595: '</b> <br />or </p>');
596: &return_link($r);
597: $r->print(<<STUFF);
598: </form>
599: STUFF
600: } else {
601: &return_link($r);
602: }
603: return 0;
604: }
605:
606: my $reserved=&make_reservation($env{'form.slotname'},
607: \%slot,$symb);
608: my $description=&get_description($env{'form.slotname'},\%slot);
609: if (defined($reserved)) {
610: my $retvalue = 0;
611: if ($slot_name =~ /^error: (.*)/) {
612: $r->print("<p><span class=\"LC_error\">An error occured while attempting to make a reservation. ($1)</span></p>");
613: } elsif ($reserved > -1) {
614: $r->print("<p>Success: $description</p>");
615: $retvalue = 1;
616: } elsif ($reserved < 0) {
617: $r->print("<p>Already reserved: $description</p>");
618: }
619: if (!$inhibit_return_link) { &return_link($r); }
620: return 1;
621: }
622:
623: my %lt=('request'=>"Availibility list",
624: 'try' =>'Try again');
625: %lt=&Apache::lonlocal::texthash(%lt);
626:
627: my $extra_input;
628: if ($conflictable_slot) {
629: $extra_input='<input type="hidden" name="releaseslot" value="'.$env{'form.slotname'}.'" />';
630: }
631:
632: $r->print(<<STUFF);
633: <p> <span class="LC_warning">Failed</span> to reserve a spot for $description. </p>
634: <p>
635: <form method="post" action="/adm/slotrequest">
636: <input type="submit" name="Try Again" value="$lt{'try'}" />
637: <input type="hidden" name="symb" value="$env{'form.symb'}" />
638: <input type="hidden" name="slotname" value="$env{'form.slotname'}" />
639: <input type="hidden" name="command" value="$env{'form.command'}" />
640: $extra_input
641: </form>
642: ?
643: </p>
644: <p>
645: or
646: <form method="post" action="/adm/slotrequest">
647: <input type="hidden" name="symb" value="$env{'form.symb'}" />
648: <input type="submit" name="requestattempt" value="$lt{'request'}" />
649: </form>
650: </p>
651: or
652: STUFF
653:
654: if (!$inhibit_return_link) { &return_link($r); }
655: return 0;
656: }
657:
658: sub allowed_slot {
659: my ($slot_name,$slot,$symb,$slots,$consumed_uniqueperiods)=@_;
660:
661: #already started
662: if ($slot->{'starttime'} < time) {
663: return 0;
664: }
665: &Apache::lonxml::debug("$slot_name starttime good");
666:
667: #already ended
668: if ($slot->{'endtime'} < time) {
669: return 0;
670: }
671: &Apache::lonxml::debug("$slot_name endtime good");
672:
673: # not allowed to pick this one
674: if (defined($slot->{'type'})
675: && $slot->{'type'} ne 'schedulable_student') {
676: return 0;
677: }
678: &Apache::lonxml::debug("$slot_name type good");
679:
680: # reserve time not yet started
681: if ($slot->{'startreserve'} > time) {
682: return 0;
683: }
684: &Apache::lonxml::debug("$slot_name reserve good");
685:
686: my $userallowed=0;
687: # its for a different set of users
688: if (defined($slot->{'allowedsections'})) {
689: if (!defined($env{'request.role.sec'})
690: && grep(/^No section assigned$/,
691: split(',',$slot->{'allowedsections'}))) {
692: $userallowed=1;
693: }
694: if (defined($env{'request.role.sec'})
695: && grep(/^\Q$env{'request.role.sec'}\E$/,
696: split(',',$slot->{'allowedsections'}))) {
697: $userallowed=1;
698: }
699: if (defined($env{'request.course.groups'})) {
700: my @groups = split(/:/,$env{'request.course.groups'});
701: my @allowed_sec = split(',',$slot->{'allowedsections'});
702: foreach my $group (@groups) {
703: if (grep {$_ eq $group} (@allowed_sec)) {
704: $userallowed=1;
705: last;
706: }
707: }
708: }
709: }
710: &Apache::lonxml::debug("$slot_name sections is $userallowed");
711:
712: # its for a different set of users
713: if (defined($slot->{'allowedusers'})
714: && grep(/^\Q$env{'user.name'}:$env{'user.domain'}\E$/,
715: split(',',$slot->{'allowedusers'}))) {
716: $userallowed=1;
717: }
718:
719: if (!defined($slot->{'allowedusers'})
720: && !defined($slot->{'allowedsections'})) {
721: $userallowed=1;
722: }
723:
724: &Apache::lonxml::debug("$slot_name user is $userallowed");
725: return 0 if (!$userallowed);
726:
727: # not allowed for this resource
728: if (defined($slot->{'symb'})
729: && $slot->{'symb'} ne $symb) {
730: return 0;
731: }
732:
733: my $conflict = &check_for_conflict($symb,$slot_name,$slot,$slots,
734: $consumed_uniqueperiods);
735: if ($conflict) {
736: if ($slots->{$conflict}{'starttime'} < time) {
737: return 0;
738: }
739: }
740: &Apache::lonxml::debug("$slot_name symb good");
741: return 1;
742: }
743:
744: sub get_description {
745: my ($slot_name,$slot)=@_;
746: my $description=$slot->{'description'};
747: if (!defined($description)) {
748: $description=&mt('[_1] From [_2] to [_3]',$slot_name,
749: &Apache::lonlocal::locallocaltime($slot->{'starttime'}),
750: &Apache::lonlocal::locallocaltime($slot->{'endtime'}));
751: }
752: return $description;
753: }
754:
755: sub show_choices {
756: my ($r,$symb)=@_;
757:
758: my ($cnum,$cdom)=&get_course();
759: my %slots=&Apache::lonnet::dump('slots',$cdom,$cnum);
760: my $consumed_uniqueperiods = &get_consumed_uniqueperiods(\%slots);
761: my $available;
762: $r->print('<table border="1">');
763: &Apache::lonxml::debug("Checking Slots");
764: my @got_slots=&check_for_reservation($symb,'allslots');
765: foreach my $slot (sort
766: { return $slots{$a}->{'starttime'} <=> $slots{$b}->{'starttime'} }
767: (keys(%slots))) {
768:
769: &Apache::lonxml::debug("Checking Slot $slot");
770: next if (!&allowed_slot($slot,$slots{$slot},undef,\%slots,
771: $consumed_uniqueperiods));
772:
773: $available++;
774:
775: my $description=&get_description($slot,$slots{$slot});
776:
777: my $form=&mt('Unavailable');
778: if ((grep(/^\Q$slot\E$/,@got_slots)) ||
779: &space_available($slot,$slots{$slot},$symb)) {
780: my $text=&mt('Select');
781: my $command='get';
782: if (grep(/^\Q$slot\E$/,@got_slots)) {
783: $text=&mt('Drop Reservation');
784: $command='release';
785: } else {
786: my $conflict = &check_for_conflict($symb,$slot,$slots{$slot},
787: \%slots,
788: $consumed_uniqueperiods);
789: if ($conflict) {
790: $text=&mt('Change Reservation');
791: $command='get';
792: }
793: }
794: my $escsymb=&escape($symb);
795: $form=<<STUFF;
796: <form method="post" action="/adm/slotrequest">
797: <input type="submit" name="Select" value="$text" />
798: <input type="hidden" name="symb" value="$escsymb" />
799: <input type="hidden" name="slotname" value="$slot" />
800: <input type="hidden" name="command" value="$command" />
801: </form>
802: STUFF
803: }
804: $r->print(<<STUFF);
805: <tr>
806: <td>$form</td>
807: <td>$description</td>
808: </tr>
809: STUFF
810: }
811:
812: if (!$available) {
813: $r->print('<tr><td>No available times. <a href="/adm/flip?postdata=return:">'.
814: &mt('Return to last resource').'</a></td></tr>');
815: }
816: $r->print('</table>');
817: }
818:
819: sub to_show {
820: my ($slotname,$slot,$when,$deleted,$name) = @_;
821: my $time=time;
822: my $week=60*60*24*7;
823:
824: if ($deleted eq 'hide' && $slot->{'type'} eq 'deleted') {
825: return 0;
826: }
827:
828: if ($name && $name->{'value'} =~ /\w/) {
829: if ($name->{'type'} eq 'substring') {
830: if ($slotname !~ /\Q$name->{'value'}\E/) {
831: return 0;
832: }
833: }
834: if ($name->{'type'} eq 'exact') {
835: if ($slotname eq $name->{'value'}) {
836: return 0;
837: }
838: }
839: }
840:
841: if ($when eq 'any') {
842: return 1;
843: } elsif ($when eq 'now') {
844: if ($time > $slot->{'starttime'} &&
845: $time < $slot->{'endtime'}) {
846: return 1;
847: }
848: return 0;
849: } elsif ($when eq 'nextweek') {
850: if ( ($time < $slot->{'starttime'} &&
851: ($time+$week) > $slot->{'starttime'})
852: ||
853: ($time < $slot->{'endtime'} &&
854: ($time+$week) > $slot->{'endtime'}) ) {
855: return 1;
856: }
857: return 0;
858: } elsif ($when eq 'lastweek') {
859: if ( ($time > $slot->{'starttime'} &&
860: ($time-$week) < $slot->{'starttime'})
861: ||
862: ($time > $slot->{'endtime'} &&
863: ($time-$week) < $slot->{'endtime'}) ) {
864: return 1;
865: }
866: return 0;
867: } elsif ($when eq 'willopen') {
868: if ($time < $slot->{'starttime'}) {
869: return 1;
870: }
871: return 0;
872: } elsif ($when eq 'wereopen') {
873: if ($time > $slot->{'endtime'}) {
874: return 1;
875: }
876: return 0;
877: }
878:
879: return 1;
880: }
881:
882: sub remove_link {
883: my ($slotname,$entry,$uname,$udom,$symb) = @_;
884:
885: my $remove = &mt('Remove');
886:
887: if ($entry eq 'remove all') {
888: $remove = &mt('Remove All');
889: undef($uname);
890: undef($udom);
891: }
892:
893: $slotname = &escape($slotname);
894: $entry = &escape($entry);
895: $uname = &escape($uname);
896: $udom = &escape($udom);
897: $symb = &escape($symb);
898:
899: return <<"END_LINK";
900: <a href="/adm/slotrequest?command=remove_registration&slotname=$slotname&entry=$entry&uname=$uname&udom=$udom&symb=$symb"
901: >($remove)</a>
902: END_LINK
903:
904: }
905:
906: sub show_table {
907: my ($r,$mgr)=@_;
908:
909: my ($cnum,$cdom)=&get_course();
910: my %slots=&Apache::lonnet::dump('slots',$cdom,$cnum);
911: if ( (keys(%slots))[0] =~ /^error: 2 /) {
912: undef(%slots);
913: }
914: my $available;
915: if ($mgr eq 'F') {
916: # FIXME: This line should be deleted once Slots uses breadcrumbs
917: $r->print(&Apache::loncommon::help_open_topic('Slot About', 'Help on slots'));
918:
919: $r->print('<div>');
920: $r->print('<form method="post" action="/adm/slotrequest">
921: <input type="hidden" name="command" value="uploadstart" />
922: <input type="submit" name="start" value="'.&mt('Upload Slot List').'" />
923: </form>');
924: $r->print(&Apache::loncommon::help_open_topic('Slot CommaDelimited'));
925: $r->print('<form method="post" action="/adm/helper/newslot.helper">
926: <input type="submit" name="newslot" value="'.&mt('Create a New Slot').'" />
927: </form>');
928: $r->print(&Apache::loncommon::help_open_topic('Slot AddInterface'));
929: $r->print('</div>');
930: }
931:
932: my %Saveable_Parameters = ('show' => 'array',
933: 'when' => 'scalar',
934: 'order' => 'scalar',
935: 'deleted' => 'scalar',
936: 'name_filter_type' => 'scalar',
937: 'name_filter_value' => 'scalar',
938: );
939: &Apache::loncommon::store_course_settings('slotrequest',
940: \%Saveable_Parameters);
941: &Apache::loncommon::restore_course_settings('slotrequest',
942: \%Saveable_Parameters);
943: &Apache::grades::init_perm();
944: my ($classlist,$section,$fullname)=&Apache::grades::getclasslist('all');
945: &Apache::grades::reset_perm();
946:
947: # what to display filtering
948: my %show_fields=&Apache::lonlocal::texthash(
949: 'name' => 'Slot Name',
950: 'description' => 'Description',
951: 'type' => 'Type',
952: 'starttime' => 'Start time',
953: 'endtime' => 'End Time',
954: 'startreserve' => 'Time students can start reserving',
955: 'secret' => 'Secret Word',
956: 'space' => '# of students/max',
957: 'ip' => 'IP or DNS restrictions',
958: 'symb' => 'Resource slot is restricted to.',
959: 'allowedsections' => 'Sections slot is restricted to.',
960: 'allowedusers' => 'Users slot is restricted to.',
961: 'uniqueperiod' => 'Period of time slot is unique',
962: 'scheduled' => 'Scheduled Students',
963: 'proctor' => 'List of proctors');
964: my @show_order=('name','description','type','starttime','endtime',
965: 'startreserve','secret','space','ip','symb',
966: 'allowedsections','allowedusers','uniqueperiod',
967: 'scheduled','proctor');
968: my @show =
969: (exists($env{'form.show'})) ? &Apache::loncommon::get_env_multiple('form.show')
970: : keys(%show_fields);
971: my %show = map { $_ => 1 } (@show);
972:
973: #when filtering setup
974: my %when_fields=&Apache::lonlocal::texthash(
975: 'now' => 'Open now',
976: 'nextweek' => 'Open within the next week',
977: 'lastweek' => 'Were open last week',
978: 'willopen' => 'Will open later',
979: 'wereopen' => 'Were open',
980: 'any' => 'Anytime',
981: );
982: my @when_order=('any','now','nextweek','lastweek','willopen','wereopen');
983: $when_fields{'select_form_order'} = \@when_order;
984: my $when = (exists($env{'form.when'})) ? $env{'form.when'}
985: : 'now';
986:
987: #display of students setup
988: my %stu_display_fields=
989: &Apache::lonlocal::texthash('username' => 'User name',
990: 'fullname' => 'Full name',
991: );
992: my @stu_display_order=('fullname','username');
993: my @stu_display =
994: (exists($env{'form.studisplay'})) ? &Apache::loncommon::get_env_multiple('form.studisplay')
995: : keys(%stu_display_fields);
996: my %stu_display = map { $_ => 1 } (@stu_display);
997:
998: #name filtering setup
999: my %name_filter_type_fields=
1000: &Apache::lonlocal::texthash('substring' => 'Substring',
1001: 'exact' => 'Exact',
1002: #'reg' => 'Regular Expression',
1003: );
1004: my @name_filter_type_order=('substring','exact');
1005:
1006: $name_filter_type_fields{'select_form_order'} = \@name_filter_type_order;
1007: my $name_filter_type =
1008: (exists($env{'form.name_filter_type'})) ? $env{'form.name_filter_type'}
1009: : 'substring';
1010: my $name_filter = {'type' => $name_filter_type,
1011: 'value' => $env{'form.name_filter_value'},};
1012:
1013:
1014: #deleted slot filtering
1015: #default to hide if no value
1016: $env{'form.deleted'} ||= 'hide';
1017: my $hide_radio =
1018: &Apache::lonhtmlcommon::radio('deleted',$env{'form.deleted'},'hide');
1019: my $show_radio =
1020: &Apache::lonhtmlcommon::radio('deleted',$env{'form.deleted'},'show');
1021:
1022: $r->print('<form method="post" action="/adm/slotrequest">
1023: <input type="hidden" name="command" value="showslots" />');
1024: $r->print('<div>');
1025: $r->print('<table class="inline">
1026: <tr><th>'.&mt('Show').'</th>
1027: <th>'.&mt('Student Display').'</th>
1028: <th>'.&mt('Open').'</th>
1029: <th>'.&mt('Slot Name Filter').'</th>
1030: <th>'.&mt('Options').'</th>
1031: </tr>
1032: <tr><td>'.&Apache::loncommon::multiple_select_form('show',\@show,6,\%show_fields,\@show_order).
1033: '</td>
1034: <td>
1035: '.&Apache::loncommon::multiple_select_form('studisplay',\@stu_display,
1036: 6,\%stu_display_fields,
1037: \@stu_display_order).'
1038: </td>
1039: <td>'.&Apache::loncommon::select_form($when,'when',%when_fields).
1040: '</td>
1041: <td>'.&Apache::loncommon::select_form($name_filter_type,
1042: 'name_filter_type',
1043: %name_filter_type_fields).
1044: '<br />'.
1045: &Apache::lonhtmlcommon::textbox('name_filter_value',
1046: $env{'form.name_filter_value'},
1047: 15).
1048: '</td>
1049: <td>
1050: <table>
1051: <tr>
1052: <td rowspan="2">Deleted slots:</td>
1053: <td><label>'.$show_radio.'Show</label></td>
1054: </tr>
1055: <tr>
1056: <td><label>'.$hide_radio.'Hide</label></td>
1057: </tr>
1058: </table>
1059: </td>
1060: </tr>
1061: </table>');
1062: $r->print('</div>');
1063: $r->print('<p><input type="submit" name="start" value="'.&mt('Update Display').'" /></p>');
1064: my $linkstart='<a href="/adm/slotrequest?command=showslots&order=';
1065: $r->print(&Apache::loncommon::start_data_table().
1066: &Apache::loncommon::start_data_table_header_row().'
1067: <th></th>');
1068: foreach my $which (@show_order) {
1069: if ($which ne 'proctor' && exists($show{$which})) {
1070: $r->print('<th>'.$linkstart.$which.'">'.$show_fields{$which}.'</a></th>');
1071: }
1072: }
1073: $r->print(&Apache::loncommon::end_data_table_header_row());
1074:
1075: my %name_cache;
1076: my $slotsort = sub {
1077: if ($env{'form.order'}=~/^(type|description|endtime|startreserve|ip|symb|allowedsections|allowedusers)$/) {
1078: if (lc($slots{$a}->{$env{'form.order'}})
1079: ne lc($slots{$b}->{$env{'form.order'}})) {
1080: return (lc($slots{$a}->{$env{'form.order'}})
1081: cmp lc($slots{$b}->{$env{'form.order'}}));
1082: }
1083: } elsif ($env{'form.order'} eq 'space') {
1084: if ($slots{$a}{'maxspace'} ne $slots{$b}{'maxspace'}) {
1085: return ($slots{$a}{'maxspace'} cmp $slots{$b}{'maxspace'});
1086: }
1087: } elsif ($env{'form.order'} eq 'name') {
1088: if (lc($a) cmp lc($b)) {
1089: return lc($a) cmp lc($b);
1090: }
1091: } elsif ($env{'form.order'} eq 'uniqueperiod') {
1092:
1093: if ($slots{$a}->{'uniqueperiod'}[0]
1094: ne $slots{$b}->{'uniqueperiod'}[0]) {
1095: return ($slots{$a}->{'uniqueperiod'}[0]
1096: cmp $slots{$b}->{'uniqueperiod'}[0]);
1097: }
1098: if ($slots{$a}->{'uniqueperiod'}[1]
1099: ne $slots{$b}->{'uniqueperiod'}[1]) {
1100: return ($slots{$a}->{'uniqueperiod'}[1]
1101: cmp $slots{$b}->{'uniqueperiod'}[1]);
1102: }
1103: }
1104: return $slots{$a}->{'starttime'} <=> $slots{$b}->{'starttime'};
1105: };
1106:
1107: my %consumed;
1108: if (exists($show{'scheduled'}) || exists($show{'space'}) ) {
1109: %consumed=&Apache::lonnet::dump('slot_reservations',$cdom,$cnum);
1110: my ($tmp)=%consumed;
1111: if ($tmp =~ /^error: /) { undef(%consumed); }
1112: }
1113:
1114: foreach my $slot (sort $slotsort (keys(%slots))) {
1115: if (!&to_show($slot,$slots{$slot},$when,
1116: $env{'form.deleted'},$name_filter)) { next; }
1117: if (defined($slots{$slot}->{'type'})
1118: && $slots{$slot}->{'type'} ne 'schedulable_student') {
1119: #next;
1120: }
1121: my $description=&get_description($slot,$slots{$slot});
1122: my ($id_count,$ids);
1123:
1124: if (exists($show{'scheduled'}) || exists($show{'space'}) ) {
1125: my $re_str = "$slot\0";
1126: my @this_slot = grep(/^\Q$re_str\E/,keys(%consumed));
1127: $id_count = scalar(@this_slot);
1128: if (exists($show{'scheduled'})) {
1129: foreach my $entry (sort { $consumed{$a}{name} cmp
1130: $consumed{$b}{name} }
1131: (@this_slot)) {
1132: my (undef,$id)=split("\0",$entry);
1133: my ($uname,$udom) = split(':',$consumed{$entry}{'name'});
1134: $ids.= '<nobr>';
1135: foreach my $item (@stu_display_order) {
1136: if ($stu_display{$item}) {
1137: if ($item eq 'fullname') {
1138: $ids.=$fullname->{"$uname:$udom"}.' ';
1139: } elsif ($item eq 'username') {
1140: $ids.="<tt>$uname:$udom</tt> ";
1141: }
1142: }
1143: }
1144: $ids.=&remove_link($slot,$entry,$uname,$udom,
1145: $consumed{$entry}{'symb'}).'</nobr><br />';
1146: }
1147: }
1148: }
1149:
1150: my $start=($slots{$slot}->{'starttime'}?
1151: &Apache::lonlocal::locallocaltime($slots{$slot}->{'starttime'}):'');
1152: my $end=($slots{$slot}->{'endtime'}?
1153: &Apache::lonlocal::locallocaltime($slots{$slot}->{'endtime'}):'');
1154: my $start_reserve=($slots{$slot}->{'startreserve'}?
1155: &Apache::lonlocal::locallocaltime($slots{$slot}->{'startreserve'}):'');
1156:
1157: my $unique;
1158: if (ref($slots{$slot}{'uniqueperiod'})) {
1159: $unique=localtime($slots{$slot}{'uniqueperiod'}[0]).', '.
1160: localtime($slots{$slot}{'uniqueperiod'}[1]);
1161: }
1162:
1163: my $title;
1164: if (exists($slots{$slot}{'symb'})) {
1165: my (undef,undef,$res)=
1166: &Apache::lonnet::decode_symb($slots{$slot}{'symb'});
1167: $res = &Apache::lonnet::clutter($res);
1168: $title = &Apache::lonnet::gettitle($slots{$slot}{'symb'});
1169: $title='<a href="'.$res.'?symb='.$slots{$slot}{'symb'}.'">'.$title.'</a>';
1170: }
1171:
1172: my $allowedsections;
1173: if (exists($show{'allowedsections'})) {
1174: $allowedsections =
1175: join(', ',sort(split(/\s*,\s*/,
1176: $slots{$slot}->{'allowedsections'})));
1177: }
1178:
1179: my @allowedusers;
1180: if (exists($show{'allowedusers'})) {
1181: @allowedusers= map {
1182: my ($uname,$udom)=split(/:/,$_);
1183: my $fullname=$name_cache{$_};
1184: if (!defined($fullname)) {
1185: $fullname = &Apache::loncommon::plainname($uname,$udom);
1186: $fullname =~s/\s/ /g;
1187: $name_cache{$_} = $fullname;
1188: }
1189: &Apache::loncommon::aboutmewrapper($fullname,$uname,$udom);
1190: } (sort(split(/\s*,\s*/,$slots{$slot}->{'allowedusers'})));
1191: }
1192: my $allowedusers=join(', ',@allowedusers);
1193:
1194: my @proctors;
1195: my $rowspan=1;
1196: my $colspan=1;
1197: if (exists($show{'proctor'})) {
1198: $rowspan=2;
1199: @proctors= map {
1200: my ($uname,$udom)=split(/:/,$_);
1201: my $fullname=$name_cache{$_};
1202: if (!defined($fullname)) {
1203: $fullname = &Apache::loncommon::plainname($uname,$udom);
1204: $fullname =~s/\s/ /g;
1205: $name_cache{$_} = $fullname;
1206: }
1207: &Apache::loncommon::aboutmewrapper($fullname,$uname,$udom);
1208: } (sort(split(/\s*,\s*/,$slots{$slot}->{'proctor'})));
1209: }
1210: my $proctors=join(', ',@proctors);
1211:
1212: my $edit=(<<"EDITLINK");
1213: <a href="/adm/helper/newslot.helper?name=$slot">Edit</a>
1214: EDITLINK
1215:
1216: my $delete=(<<"DELETELINK");
1217: <a href="/adm/slotrequest?command=delete&slotname=$slot">Delete</a>
1218: DELETELINK
1219:
1220: my $remove_all=&remove_link($slot,'remove all').'<br />';
1221:
1222: if ($ids ne '') { undef($delete); }
1223: if ($slots{$slot}{'type'} ne 'schedulable_student'
1224: || $ids eq '') {
1225: undef($remove_all);
1226: }
1227:
1228: my $row_start=&Apache::loncommon::start_data_table_row();
1229: my $row_end=&Apache::loncommon::end_data_table_row();
1230: $r->print($row_start.
1231: "\n<td rowspan=\"$rowspan\">$edit $delete</td>\n");
1232: if (exists($show{'name'})) {
1233: $colspan++;$r->print("<td>$slot</td>");
1234: }
1235: if (exists($show{'description'})) {
1236: $colspan++;$r->print("<td>$description</td>\n");
1237: }
1238: if (exists($show{'type'})) {
1239: $colspan++;$r->print("<td>$slots{$slot}->{'type'}</td>\n");
1240: }
1241: if (exists($show{'starttime'})) {
1242: $colspan++;$r->print("<td>$start</td>\n");
1243: }
1244: if (exists($show{'endtime'})) {
1245: $colspan++;$r->print("<td>$end</td>\n");
1246: }
1247: if (exists($show{'startreserve'})) {
1248: $colspan++;$r->print("<td>$start_reserve</td>\n");
1249: }
1250: if (exists($show{'secret'})) {
1251: $colspan++;$r->print("<td>$slots{$slot}{'secret'}</td>\n");
1252: }
1253: if (exists($show{'space'})) {
1254: my $display = $id_count;
1255: if ($slots{$slot}{'maxspace'}>0) {
1256: $display.='/'.$slots{$slot}{'maxspace'};
1257: if ($slots{$slot}{'maxspace'} <= $id_count) {
1258: $display = '<strong>'.$display.' (full) </strong>';
1259: }
1260: }
1261: $colspan++;$r->print("<td>$display</td>\n");
1262: }
1263: if (exists($show{'ip'})) {
1264: $colspan++;$r->print("<td>$slots{$slot}{'ip'}</td>\n");
1265: }
1266: if (exists($show{'symb'})) {
1267: $colspan++;$r->print("<td>$title</td>\n");
1268: }
1269: if (exists($show{'allowedsections'})) {
1270: $colspan++;$r->print("<td>$allowedsections</td>\n");
1271: }
1272: if (exists($show{'allowedusers'})) {
1273: $colspan++;$r->print("<td>$allowedusers</td>\n");
1274: }
1275: if (exists($show{'uniqueperiod'})) {
1276: $colspan++;$r->print("<td>$unique</td>\n");
1277: }
1278: if (exists($show{'scheduled'})) {
1279: $colspan++;$r->print("<td>$remove_all $ids</td>\n");
1280: }
1281: $r->print("$row_end\n");
1282: if (exists($show{'proctor'})) {
1283: $r->print(<<STUFF);
1284: $row_start
1285: <td colspan="$colspan">$proctors</td>
1286: $row_end
1287: STUFF
1288: }
1289: }
1290: $r->print('</table></form>');
1291: }
1292:
1293: sub upload_start {
1294: my ($r)=@_;
1295: $r->print(&Apache::grades::checkforfile_js());
1296: my $result.='<table width=100% border=0><tr bgcolor="#e6ffff"><td>'."\n";
1297: $result.=' <b>'.
1298: &mt('Specify a file containing the slot definitions.').
1299: '</b></td></tr>'."\n";
1300: $result.='<tr bgcolor=#ffffe6><td>'."\n";
1301: my $upfile_select=&Apache::loncommon::upfile_select_html();
1302: my $ignore=&mt('Ignore First Line');
1303: $result.=<<ENDUPFORM;
1304: <form method="post" enctype="multipart/form-data" action="/adm/slotrequest" name="slotupload">
1305: <input type="hidden" name="command" value="csvuploadmap" />
1306: $upfile_select
1307: <br /><input type="button" onClick="javascript:checkUpload(this.form);" value="Upload Data" />
1308: <label><input type="checkbox" name="noFirstLine" />$ignore</label>
1309: </form>
1310: ENDUPFORM
1311: $result.='</td></tr></table>'."\n";
1312: $result.='</td></tr></table>'."\n";
1313: $r->print($result);
1314: }
1315:
1316: sub csvuploadmap_header {
1317: my ($r,$datatoken,$distotal)= @_;
1318: my $javascript;
1319: if ($env{'form.upfile_associate'} eq 'reverse') {
1320: $javascript=&csvupload_javascript_reverse_associate();
1321: } else {
1322: $javascript=&csvupload_javascript_forward_associate();
1323: }
1324:
1325: my $checked=(($env{'form.noFirstLine'})?' checked="checked"':'');
1326: my $ignore=&mt('Ignore First Line');
1327: my $help_field = &Apache::loncommon::help_open_topic('Slot SelectingField');
1328:
1329: $r->print(<<ENDPICK);
1330: <form method="post" enctype="multipart/form-data" action="/adm/slotrequest" name="slotupload">
1331: <h3>Identify fields $help_field</h3>
1332: Total number of records found in file: $distotal <hr />
1333: Enter as many fields as you can. The system will inform you and bring you back
1334: to this page if the data selected is insufficient to create the slots.<hr />
1335: <input type="button" value="Reverse Association" onClick="javascript:this.form.associate.value='Reverse Association';submit(this.form);" />
1336: <label><input type="checkbox" name="noFirstLine" $checked />$ignore</label>
1337: <input type="hidden" name="associate" value="" />
1338: <input type="hidden" name="datatoken" value="$datatoken" />
1339: <input type="hidden" name="fileupload" value="$env{'form.fileupload'}" />
1340: <input type="hidden" name="upfiletype" value="$env{'form.upfiletype'}" />
1341: <input type="hidden" name="upfile_associate"
1342: value="$env{'form.upfile_associate'}" />
1343: <input type="hidden" name="command" value="csvuploadassign" />
1344: <hr />
1345: <script type="text/javascript" language="Javascript">
1346: $javascript
1347: </script>
1348: ENDPICK
1349: return '';
1350:
1351: }
1352:
1353: sub csvuploadmap_footer {
1354: my ($request,$i,$keyfields) =@_;
1355: $request->print(<<ENDPICK);
1356: </table>
1357: <input type="hidden" name="nfields" value="$i" />
1358: <input type="hidden" name="keyfields" value="$keyfields" />
1359: <input type="button" onClick="javascript:verify(this.form)" value="Create Slots" /><br />
1360: </form>
1361: ENDPICK
1362: }
1363:
1364: sub csvupload_javascript_reverse_associate {
1365: my $error1=&mt('You need to specify the name, starttime, endtime and a type');
1366: return(<<ENDPICK);
1367: function verify(vf) {
1368: var foundstart=0;
1369: var foundend=0;
1370: var foundname=0;
1371: var foundtype=0;
1372: for (i=0;i<=vf.nfields.value;i++) {
1373: tw=eval('vf.f'+i+'.selectedIndex');
1374: if (i==0 && tw!=0) { foundname=1; }
1375: if (i==1 && tw!=0) { foundtype=1; }
1376: if (i==2 && tw!=0) { foundstat=1; }
1377: if (i==3 && tw!=0) { foundend=1; }
1378: }
1379: if (foundstart==0 && foundend==0 && foundtype==0 && foundname==0) {
1380: alert('$error1');
1381: return;
1382: }
1383: vf.submit();
1384: }
1385: function flip(vf,tf) {
1386: }
1387: ENDPICK
1388: }
1389:
1390: sub csvupload_javascript_forward_associate {
1391: my $error1=&mt('You need to specify the name, starttime, endtime and a type');
1392: return(<<ENDPICK);
1393: function verify(vf) {
1394: var foundstart=0;
1395: var foundend=0;
1396: var foundname=0;
1397: var foundtype=0;
1398: for (i=0;i<=vf.nfields.value;i++) {
1399: tw=eval('vf.f'+i+'.selectedIndex');
1400: if (tw==1) { foundname=1; }
1401: if (tw==2) { foundtype=1; }
1402: if (tw==3) { foundstat=1; }
1403: if (tw==4) { foundend=1; }
1404: }
1405: if (foundstart==0 && foundend==0 && foundtype==0 && foundname==0) {
1406: alert('$error1');
1407: return;
1408: }
1409: vf.submit();
1410: }
1411: function flip(vf,tf) {
1412: }
1413: ENDPICK
1414: }
1415:
1416: sub csv_upload_map {
1417: my ($r)= @_;
1418:
1419: my $datatoken;
1420: if (!$env{'form.datatoken'}) {
1421: $datatoken=&Apache::loncommon::upfile_store($r);
1422: } else {
1423: $datatoken=$env{'form.datatoken'};
1424: &Apache::loncommon::load_tmp_file($r);
1425: }
1426: my @records=&Apache::loncommon::upfile_record_sep();
1427: if ($env{'form.noFirstLine'}) { shift(@records); }
1428: &csvuploadmap_header($r,$datatoken,$#records+1);
1429: my ($i,$keyfields);
1430: if (@records) {
1431: my @fields=&csvupload_fields();
1432:
1433: if ($env{'form.upfile_associate'} eq 'reverse') {
1434: &Apache::loncommon::csv_print_samples($r,\@records);
1435: $i=&Apache::loncommon::csv_print_select_table($r,\@records,
1436: \@fields);
1437: foreach (@fields) { $keyfields.=$_->[0].','; }
1438: chop($keyfields);
1439: } else {
1440: unshift(@fields,['none','']);
1441: $i=&Apache::loncommon::csv_samples_select_table($r,\@records,
1442: \@fields);
1443: my %sone=&Apache::loncommon::record_sep($records[0]);
1444: $keyfields=join(',',sort(keys(%sone)));
1445: }
1446: }
1447: &csvuploadmap_footer($r,$i,$keyfields);
1448:
1449: return '';
1450: }
1451:
1452: sub csvupload_fields {
1453: return (['name','Slot name'],
1454: ['type','Type of slot'],
1455: ['starttime','Start Time of slot'],
1456: ['endtime','End Time of slot'],
1457: ['startreserve','Reservation Start Time'],
1458: ['ip','IP or DNS restriction'],
1459: ['proctor','List of proctor ids'],
1460: ['description','Slot Description'],
1461: ['maxspace','Maximum number of reservations'],
1462: ['symb','Resource Restriction'],
1463: ['uniqueperiod','Date range of slot exclusion'],
1464: ['secret','Secret word proctor uses to validate'],
1465: ['allowedsections','Sections slot is restricted to'],
1466: ['allowedusers','Users slot is restricted to'],
1467: );
1468: }
1469:
1470: sub csv_upload_assign {
1471: my ($r,$mgr)= @_;
1472: &Apache::loncommon::load_tmp_file($r);
1473: my @slotdata = &Apache::loncommon::upfile_record_sep();
1474: if ($env{'form.noFirstLine'}) { shift(@slotdata); }
1475: my %fields=&Apache::grades::get_fields();
1476: $r->print('<h3>Creating Slots</h3>');
1477: my $cname=$env{'course.'.$env{'request.course.id'}.'.num'};
1478: my $cdom=$env{'course.'.$env{'request.course.id'}.'.domain'};
1479: my $countdone=0;
1480: my @errors;
1481: foreach my $slot (@slotdata) {
1482: my %slot;
1483: my %entries=&Apache::loncommon::record_sep($slot);
1484: my $domain;
1485: my $name=$entries{$fields{'name'}};
1486: if ($name=~/^\s*$/) {
1487: push(@errors,"Did not create slot with no name");
1488: next;
1489: }
1490: if ($name=~/\s/) {
1491: push(@errors,"$name not created -- Name must not contain spaces");
1492: next;
1493: }
1494: if ($name=~/\W/) {
1495: push(@errors,"$name not created -- Name must contain only letters, numbers and _");
1496: next;
1497: }
1498: if ($entries{$fields{'type'}}) {
1499: $slot{'type'}=$entries{$fields{'type'}};
1500: } else {
1501: $slot{'type'}='preassigned';
1502: }
1503: if ($slot{'type'} ne 'preassigned' &&
1504: $slot{'type'} ne 'schedulable_student') {
1505: push(@errors,"$name not created -- invalid type ($slot{'type'}) must be either preassigned or schedulable_student");
1506: next;
1507: }
1508: if ($entries{$fields{'starttime'}}) {
1509: $slot{'starttime'}=&UnixDate($entries{$fields{'starttime'}},"%s");
1510: }
1511: if ($entries{$fields{'endtime'}}) {
1512: $slot{'endtime'}=&UnixDate($entries{$fields{'endtime'}},"%s");
1513: }
1514:
1515: # start/endtime must be defined and greater than zero
1516: if (!$slot{'starttime'}) {
1517: push(@errors,"$name not created -- Invalid start time");
1518: next;
1519: }
1520: if (!$slot{'endtime'}) {
1521: push(@errors,"$name not created -- Invalid end time");
1522: next;
1523: }
1524: if ($slot{'starttime'} > $slot{'endtime'}) {
1525: push(@errors,"$name not created -- Slot starts after it ends");
1526: next;
1527: }
1528:
1529: if ($entries{$fields{'startreserve'}}) {
1530: $slot{'startreserve'}=
1531: &UnixDate($entries{$fields{'startreserve'}},"%s");
1532: }
1533: if (defined($slot{'startreserve'})
1534: && $slot{'startreserve'} > $slot{'starttime'}) {
1535: push(@errors,"$name not created -- Slot's reservation start time is after the slot's start time.");
1536: next;
1537: }
1538:
1539: foreach my $key ('ip','proctor','description','maxspace',
1540: 'secret','symb') {
1541: if ($entries{$fields{$key}}) {
1542: $slot{$key}=$entries{$fields{$key}};
1543: }
1544: }
1545:
1546: if ($entries{$fields{'uniqueperiod'}}) {
1547: my ($start,$end)=split(',',$entries{$fields{'uniqueperiod'}});
1548: my @times=(&UnixDate($start,"%s"),
1549: &UnixDate($end,"%s"));
1550: $slot{'uniqueperiod'}=\@times;
1551: }
1552: if (defined($slot{'uniqueperiod'})
1553: && $slot{'uniqueperiod'}[0] > $slot{'uniqueperiod'}[1]) {
1554: push(@errors,"$name not created -- Slot's unique period start time is later than the unique period's end time.");
1555: next;
1556: }
1557:
1558: &Apache::lonnet::cput('slots',{$name=>\%slot},$cdom,$cname);
1559: $r->print('.');
1560: $r->rflush();
1561: $countdone++;
1562: }
1563: $r->print("<p>Created $countdone slots\n</p>");
1564: foreach my $error (@errors) {
1565: $r->print("<p><span class=\"LC_warning\">$error</span></p>\n");
1566: }
1567: &show_table($r,$mgr);
1568: return '';
1569: }
1570:
1571: sub handler {
1572: my $r=shift;
1573:
1574: &Apache::loncommon::content_type($r,'text/html');
1575: &Apache::loncommon::no_cache($r);
1576: if ($r->header_only()) {
1577: $r->send_http_header();
1578: return OK;
1579: }
1580:
1581: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'});
1582:
1583: my $vgr=&Apache::lonnet::allowed('vgr',$env{'request.course.id'});
1584: my $mgr=&Apache::lonnet::allowed('mgr',$env{'request.course.id'});
1585: my $title='Requesting Another Worktime';
1586: if ($env{'form.command'} =~ /^(showslots|uploadstart|csvuploadmap|csvuploadassign)$/ && $vgr eq 'F') {
1587: $title = 'Managing Slots';
1588: }
1589: &start_page($r,$title);
1590:
1591: if ($env{'form.command'} eq 'showslots' && $vgr eq 'F') {
1592: &show_table($r,$mgr);
1593: } elsif ($env{'form.command'} eq 'remove_registration' && $mgr eq 'F') {
1594: &remove_registration($r);
1595: } elsif ($env{'form.command'} eq 'release' && $mgr eq 'F') {
1596: if ($env{'form.entry'} eq 'remove all') {
1597: &release_all_slot($r,$mgr);
1598: } else {
1599: &release_slot($r,undef,undef,undef,$mgr);
1600: }
1601: } elsif ($env{'form.command'} eq 'delete' && $mgr eq 'F') {
1602: &delete_slot($r);
1603: } elsif ($env{'form.command'} eq 'uploadstart' && $mgr eq 'F') {
1604: &upload_start($r);
1605: } elsif ($env{'form.command'} eq 'csvuploadmap' && $mgr eq 'F') {
1606: &csv_upload_map($r);
1607: } elsif ($env{'form.command'} eq 'csvuploadassign' && $mgr eq 'F') {
1608: if ($env{'form.associate'} ne 'Reverse Association') {
1609: &csv_upload_assign($r,$mgr);
1610: } else {
1611: if ( $env{'form.upfile_associate'} ne 'reverse' ) {
1612: $env{'form.upfile_associate'} = 'reverse';
1613: } else {
1614: $env{'form.upfile_associate'} = 'forward';
1615: }
1616: &csv_upload_map($r);
1617: }
1618: } else {
1619: my $symb=&unescape($env{'form.symb'});
1620: if (!defined($symb)) {
1621: &fail($r,'not_valid');
1622: return OK;
1623: }
1624: my (undef,undef,$res)=&Apache::lonnet::decode_symb($symb);
1625: my $useslots = &Apache::lonnet::EXT("resource.0.useslots",$symb);
1626: if ($useslots ne 'resource'
1627: && $useslots ne 'map'
1628: && $useslots ne 'map_map') {
1629: &fail($r,'not_available');
1630: return OK;
1631: }
1632: $env{'request.symb'}=$symb;
1633: my $type = ($res =~ /\.task$/) ? 'Task'
1634: : 'problem';
1635: my ($status) = &Apache::lonhomework::check_slot_access('0',$type);
1636: if ($status eq 'CAN_ANSWER' ||
1637: $status eq 'NEEDS_CHECKIN' ||
1638: $status eq 'WAITING_FOR_GRADE') {
1639: &fail($r,'not_allowed');
1640: return OK;
1641: }
1642: if ($env{'form.requestattempt'}) {
1643: &show_choices($r,$symb);
1644: } elsif ($env{'form.command'} eq 'release') {
1645: &release_slot($r,$symb);
1646: } elsif ($env{'form.command'} eq 'get') {
1647: &get_slot($r,$symb);
1648: } elsif ($env{'form.command'} eq 'change') {
1649: if (&get_slot($r,$symb,$env{'form.releaseslot'},1)) {
1650: &release_slot($r,$symb,$env{'form.releaseslot'});
1651: }
1652: } else {
1653: $r->print("<p>Unknown command: ".$env{'form.command'}."</p>");
1654: }
1655: }
1656: &end_page($r);
1657: return OK;
1658: }
1659:
1660: 1;
1661: __END__
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