File:
[LON-CAPA] /
loncom /
interface /
slotrequest.pm
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1.81:
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Mon Jan 14 14:32:30 2008 UTC (16 years, 3 months ago) by
raeburn
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CVS tags:
version_2_7_0,
version_2_6_X,
version_2_6_99_1,
version_2_6_99_0,
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When using calls to &Apache::lonnet::EXT(), request a scalar explicitly, to avoid similar problems to those eencountered in bug 5578, following the change in lonnet.pm rev 1.927 which enabled EXT() to return the level a parameter is set at, if an array was requested.
1: # The LearningOnline Network with CAPA
2: # Handler for requesting to have slots added to a students record
3: #
4: # $Id: slotrequest.pm,v 1.81 2008/01/14 14:32:30 raeburn Exp $
5: #
6: # Copyright Michigan State University Board of Trustees
7: #
8: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
9: #
10: # LON-CAPA is free software; you can redistribute it and/or modify
11: # it under the terms of the GNU General Public License as published by
12: # the Free Software Foundation; either version 2 of the License, or
13: # (at your option) any later version.
14: #
15: # LON-CAPA is distributed in the hope that it will be useful,
16: # but WITHOUT ANY WARRANTY; without even the implied warranty of
17: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18: # GNU General Public License for more details.
19: #
20: # You should have received a copy of the GNU General Public License
21: # along with LON-CAPA; if not, write to the Free Software
22: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23: #
24: # /home/httpd/html/adm/gpl.txt
25: #
26: # http://www.lon-capa.org/
27: #
28: ###
29:
30: package Apache::slotrequest;
31:
32: use strict;
33: use Apache::Constants qw(:common :http :methods);
34: use Apache::loncommon();
35: use Apache::lonlocal;
36: use Apache::lonnet;
37: use Apache::lonnavmaps();
38: use Date::Manip;
39: use lib '/home/httpd/lib/perl/';
40: use LONCAPA;
41:
42: sub fail {
43: my ($r,$code)=@_;
44: if ($code eq 'not_valid') {
45: $r->print('<p>'.&mt('Unable to understand what resource you wanted to sign up for.').'</p>');
46: } elsif ($code eq 'not_available') {
47: $r->print('<p>'.&mt('No slots are available.').'</p>');
48: } elsif ($code eq 'not_allowed') {
49: $r->print('<p>'.&mt('Not allowed to sign up or change reservations at this time.').'</p>');
50: } else {
51: $r->print('<p>'.&mt('Failed.').'</p>');
52: }
53:
54: &return_link($r);
55: &end_page($r);
56: }
57:
58: sub start_page {
59: my ($r,$title)=@_;
60: $r->print(&Apache::loncommon::start_page($title));
61: }
62:
63: sub end_page {
64: my ($r)=@_;
65: $r->print(&Apache::loncommon::end_page());
66: }
67:
68: =pod
69:
70: slot_reservations db
71: - keys are
72: - slotname\0id -> value is an hashref of
73: name -> user@domain of holder
74: timestamp -> timestamp of reservation
75: symb -> symb of resource that it is reserved for
76:
77: =cut
78:
79: sub get_course {
80: (undef,my $courseid)=&Apache::lonnet::whichuser();
81: my $cdom=$env{'course.'.$courseid.'.domain'};
82: my $cnum=$env{'course.'.$courseid.'.num'};
83: return ($cnum,$cdom);
84: }
85:
86: sub get_reservation_ids {
87: my ($slot_name)=@_;
88:
89: my ($cnum,$cdom)=&get_course();
90:
91: my %consumed=&Apache::lonnet::dump('slot_reservations',$cdom,$cnum,
92: "^$slot_name\0");
93: if (&Apache::lonnet::error(%consumed)) {
94: return 'error: Unable to determine current status';
95: }
96: my ($tmp)=%consumed;
97: if ($tmp=~/^error: 2 / ) {
98: return 0;
99: }
100: return keys(%consumed);
101: }
102:
103: sub space_available {
104: my ($slot_name,$slot)=@_;
105: my $max=$slot->{'maxspace'};
106:
107: if (!defined($max)) { return 1; }
108:
109: my $consumed=scalar(&get_reservation_ids($slot_name));
110: if ($consumed < $max) {
111: return 1
112: }
113: return 0;
114: }
115:
116: sub check_for_reservation {
117: my ($symb,$mode)=@_;
118: my $student = &Apache::lonnet::EXT("resource.0.availablestudent", $symb,
119: $env{'user.domain'}, $env{'user.name'});
120:
121: my $course = &Apache::lonnet::EXT("resource.0.available", $symb,
122: $env{'user.domain'}, $env{'user.name'});
123: my @slots = (split(/:/,$student), split(/:/, $course));
124:
125: &Apache::lonxml::debug(" slot list is ".join(':',@slots));
126:
127: my ($cnum,$cdom)=&get_course();
128: my %slots=&Apache::lonnet::get('slots', [@slots], $cdom, $cnum);
129:
130: if (&Apache::lonnet::error($student)
131: || &Apache::lonnet::error($course)
132: || &Apache::lonnet::error(%slots)) {
133: return 'error: Unable to determine current status';
134: }
135: my @got;
136: foreach my $slot_name (sort {
137: if (ref($slots{$a}) && ref($slots{$b})) {
138: return $slots{$a}{'starttime'} <=> $slots{$b}{'starttime'}
139: }
140: if (ref($slots{$a})) { return -1;}
141: if (ref($slots{$b})) { return 1;}
142: return 0;
143: } @slots) {
144: next if (!defined($slots{$slot_name}) ||
145: !ref($slots{$slot_name}));
146: &Apache::lonxml::debug(time." $slot_name ".
147: $slots{$slot_name}->{'starttime'}." -- ".
148: $slots{$slot_name}->{'startreserve'});
149: if ($slots{$slot_name}->{'endtime'} > time &&
150: $slots{$slot_name}->{'startreserve'} < time) {
151: # between start of reservation times and end of slot
152: if ($mode eq 'allslots') {
153: push(@got,$slot_name);
154: } else {
155: return($slot_name, $slots{$slot_name});
156: }
157: }
158: }
159: if ($mode eq 'allslots' && @got) {
160: return @got;
161: }
162: return (undef,undef);
163: }
164:
165: sub get_consumed_uniqueperiods {
166: my ($slots) = @_;
167: my $navmap=Apache::lonnavmaps::navmap->new;
168: 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 $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\">An error occured while attempting to make a reservation. ($1)</span></p>");
573: &return_link($r);
574: return 0;
575: }
576: if ($slot_name && $slot_name ne $conflictable_slot) {
577: my %slot=&Apache::lonnet::get_slot($slot_name);
578: my $description1=&get_description($slot_name,\%slot);
579: %slot=&Apache::lonnet::get_slot($env{'form.slotname'});
580: my $description2=&get_description($env{'form.slotname'},\%slot);
581: $r->print("<p>Already have a reservation: $description1</p>");
582: if ($slot_name ne $env{'form.slotname'}) {
583: $r->print(<<STUFF);
584: <form method="post" action="/adm/slotrequest">
585: <input type="hidden" name="symb" value="$env{'form.symb'}" />
586: <input type="hidden" name="slotname" value="$env{'form.slotname'}" />
587: <input type="hidden" name="releaseslot" value="$slot_name" />
588: <input type="hidden" name="command" value="change" />
589: STUFF
590: $r->print("<p>You can either ");
591: $r->print(<<STUFF);
592: <input type="submit" name="change" value="Change" />
593: STUFF
594: $r->print(' your reservation from <b>'.$description1.'</b> to <b>'.
595: $description2.
596: '</b> <br />or </p>');
597: &return_link($r);
598: $r->print(<<STUFF);
599: </form>
600: STUFF
601: } else {
602: &return_link($r);
603: }
604: return 0;
605: }
606:
607: my $reserved=&make_reservation($env{'form.slotname'},
608: \%slot,$symb);
609: my $description=&get_description($env{'form.slotname'},\%slot);
610: if (defined($reserved)) {
611: my $retvalue = 0;
612: if ($slot_name =~ /^error: (.*)/) {
613: $r->print("<p><span class=\"LC_error\">An error occured while attempting to make a reservation. ($1)</span></p>");
614: } elsif ($reserved > -1) {
615: $r->print("<p>Success: $description</p>");
616: $retvalue = 1;
617: } elsif ($reserved < 0) {
618: $r->print("<p>Already reserved: $description</p>");
619: }
620: if (!$inhibit_return_link) { &return_link($r); }
621: return 1;
622: }
623:
624: my %lt=('request'=>"Availibility list",
625: 'try' =>'Try again');
626: %lt=&Apache::lonlocal::texthash(%lt);
627:
628: my $extra_input;
629: if ($conflictable_slot) {
630: $extra_input='<input type="hidden" name="releaseslot" value="'.$env{'form.slotname'}.'" />';
631: }
632:
633: $r->print(<<STUFF);
634: <p> <span class="LC_warning">Failed</span> to reserve a spot for $description. </p>
635: <p>
636: <form method="post" action="/adm/slotrequest">
637: <input type="submit" name="Try Again" value="$lt{'try'}" />
638: <input type="hidden" name="symb" value="$env{'form.symb'}" />
639: <input type="hidden" name="slotname" value="$env{'form.slotname'}" />
640: <input type="hidden" name="command" value="$env{'form.command'}" />
641: $extra_input
642: </form>
643: ?
644: </p>
645: <p>
646: or
647: <form method="post" action="/adm/slotrequest">
648: <input type="hidden" name="symb" value="$env{'form.symb'}" />
649: <input type="submit" name="requestattempt" value="$lt{'request'}" />
650: </form>
651: </p>
652: or
653: STUFF
654:
655: if (!$inhibit_return_link) { &return_link($r); }
656: return 0;
657: }
658:
659: sub allowed_slot {
660: my ($slot_name,$slot,$symb,$slots,$consumed_uniqueperiods)=@_;
661:
662: #already started
663: if ($slot->{'starttime'} < time) {
664: return 0;
665: }
666: &Apache::lonxml::debug("$slot_name starttime good");
667:
668: #already ended
669: if ($slot->{'endtime'} < time) {
670: return 0;
671: }
672: &Apache::lonxml::debug("$slot_name endtime good");
673:
674: # not allowed to pick this one
675: if (defined($slot->{'type'})
676: && $slot->{'type'} ne 'schedulable_student') {
677: return 0;
678: }
679: &Apache::lonxml::debug("$slot_name type good");
680:
681: # reserve time not yet started
682: if ($slot->{'startreserve'} > time) {
683: return 0;
684: }
685: &Apache::lonxml::debug("$slot_name reserve good");
686:
687: my $userallowed=0;
688: # its for a different set of users
689: if (defined($slot->{'allowedsections'})) {
690: if (!defined($env{'request.role.sec'})
691: && grep(/^No section assigned$/,
692: split(',',$slot->{'allowedsections'}))) {
693: $userallowed=1;
694: }
695: if (defined($env{'request.role.sec'})
696: && grep(/^\Q$env{'request.role.sec'}\E$/,
697: split(',',$slot->{'allowedsections'}))) {
698: $userallowed=1;
699: }
700: if (defined($env{'request.course.groups'})) {
701: my @groups = split(/:/,$env{'request.course.groups'});
702: my @allowed_sec = split(',',$slot->{'allowedsections'});
703: foreach my $group (@groups) {
704: if (grep {$_ eq $group} (@allowed_sec)) {
705: $userallowed=1;
706: last;
707: }
708: }
709: }
710: }
711: &Apache::lonxml::debug("$slot_name sections is $userallowed");
712:
713: # its for a different set of users
714: if (defined($slot->{'allowedusers'})
715: && grep(/^\Q$env{'user.name'}:$env{'user.domain'}\E$/,
716: split(',',$slot->{'allowedusers'}))) {
717: $userallowed=1;
718: }
719:
720: if (!defined($slot->{'allowedusers'})
721: && !defined($slot->{'allowedsections'})) {
722: $userallowed=1;
723: }
724:
725: &Apache::lonxml::debug("$slot_name user is $userallowed");
726: return 0 if (!$userallowed);
727:
728: # not allowed for this resource
729: if (defined($slot->{'symb'})
730: && $slot->{'symb'} ne $symb) {
731: return 0;
732: }
733:
734: my $conflict = &check_for_conflict($symb,$slot_name,$slot,$slots,
735: $consumed_uniqueperiods);
736: if ($conflict) {
737: if ($slots->{$conflict}{'starttime'} < time) {
738: return 0;
739: }
740: }
741: &Apache::lonxml::debug("$slot_name symb good");
742: return 1;
743: }
744:
745: sub get_description {
746: my ($slot_name,$slot)=@_;
747: my $description=$slot->{'description'};
748: if (!defined($description)) {
749: $description=&mt('[_1] From [_2] to [_3]',$slot_name,
750: &Apache::lonlocal::locallocaltime($slot->{'starttime'}),
751: &Apache::lonlocal::locallocaltime($slot->{'endtime'}));
752: }
753: return $description;
754: }
755:
756: sub show_choices {
757: my ($r,$symb)=@_;
758:
759: my ($cnum,$cdom)=&get_course();
760: my %slots=&Apache::lonnet::dump('slots',$cdom,$cnum);
761: my $consumed_uniqueperiods = &get_consumed_uniqueperiods(\%slots);
762: my $available;
763: $r->print('<table border="1">');
764: &Apache::lonxml::debug("Checking Slots");
765: my @got_slots=&check_for_reservation($symb,'allslots');
766: foreach my $slot (sort
767: { return $slots{$a}->{'starttime'} <=> $slots{$b}->{'starttime'} }
768: (keys(%slots))) {
769:
770: &Apache::lonxml::debug("Checking Slot $slot");
771: next if (!&allowed_slot($slot,$slots{$slot},undef,\%slots,
772: $consumed_uniqueperiods));
773:
774: $available++;
775:
776: my $description=&get_description($slot,$slots{$slot});
777:
778: my $form=&mt('Unavailable');
779: if ((grep(/^\Q$slot\E$/,@got_slots)) ||
780: &space_available($slot,$slots{$slot},$symb)) {
781: my $text=&mt('Select');
782: my $command='get';
783: if (grep(/^\Q$slot\E$/,@got_slots)) {
784: $text=&mt('Drop Reservation');
785: $command='release';
786: } else {
787: my $conflict = &check_for_conflict($symb,$slot,$slots{$slot},
788: \%slots,
789: $consumed_uniqueperiods);
790: if ($conflict) {
791: $text=&mt('Change Reservation');
792: $command='get';
793: }
794: }
795: my $escsymb=&escape($symb);
796: $form=<<STUFF;
797: <form method="post" action="/adm/slotrequest">
798: <input type="submit" name="Select" value="$text" />
799: <input type="hidden" name="symb" value="$escsymb" />
800: <input type="hidden" name="slotname" value="$slot" />
801: <input type="hidden" name="command" value="$command" />
802: </form>
803: STUFF
804: }
805: $r->print(<<STUFF);
806: <tr>
807: <td>$form</td>
808: <td>$description</td>
809: </tr>
810: STUFF
811: }
812:
813: if (!$available) {
814: $r->print('<tr><td>No available times. <a href="/adm/flip?postdata=return:">'.
815: &mt('Return to last resource').'</a></td></tr>');
816: }
817: $r->print('</table>');
818: }
819:
820: sub to_show {
821: my ($slotname,$slot,$when,$deleted,$name) = @_;
822: my $time=time;
823: my $week=60*60*24*7;
824:
825: if ($deleted eq 'hide' && $slot->{'type'} eq 'deleted') {
826: return 0;
827: }
828:
829: if ($name && $name->{'value'} =~ /\w/) {
830: if ($name->{'type'} eq 'substring') {
831: if ($slotname !~ /\Q$name->{'value'}\E/) {
832: return 0;
833: }
834: }
835: if ($name->{'type'} eq 'exact') {
836: if ($slotname eq $name->{'value'}) {
837: return 0;
838: }
839: }
840: }
841:
842: if ($when eq 'any') {
843: return 1;
844: } elsif ($when eq 'now') {
845: if ($time > $slot->{'starttime'} &&
846: $time < $slot->{'endtime'}) {
847: return 1;
848: }
849: return 0;
850: } elsif ($when eq 'nextweek') {
851: if ( ($time < $slot->{'starttime'} &&
852: ($time+$week) > $slot->{'starttime'})
853: ||
854: ($time < $slot->{'endtime'} &&
855: ($time+$week) > $slot->{'endtime'}) ) {
856: return 1;
857: }
858: return 0;
859: } elsif ($when eq 'lastweek') {
860: if ( ($time > $slot->{'starttime'} &&
861: ($time-$week) < $slot->{'starttime'})
862: ||
863: ($time > $slot->{'endtime'} &&
864: ($time-$week) < $slot->{'endtime'}) ) {
865: return 1;
866: }
867: return 0;
868: } elsif ($when eq 'willopen') {
869: if ($time < $slot->{'starttime'}) {
870: return 1;
871: }
872: return 0;
873: } elsif ($when eq 'wereopen') {
874: if ($time > $slot->{'endtime'}) {
875: return 1;
876: }
877: return 0;
878: }
879:
880: return 1;
881: }
882:
883: sub remove_link {
884: my ($slotname,$entry,$uname,$udom,$symb) = @_;
885:
886: my $remove = &mt('Remove');
887:
888: if ($entry eq 'remove all') {
889: $remove = &mt('Remove All');
890: undef($uname);
891: undef($udom);
892: }
893:
894: $slotname = &escape($slotname);
895: $entry = &escape($entry);
896: $uname = &escape($uname);
897: $udom = &escape($udom);
898: $symb = &escape($symb);
899:
900: return <<"END_LINK";
901: <a href="/adm/slotrequest?command=remove_registration&slotname=$slotname&entry=$entry&uname=$uname&udom=$udom&symb=$symb"
902: >($remove)</a>
903: END_LINK
904:
905: }
906:
907: sub show_table {
908: my ($r,$mgr)=@_;
909:
910: my ($cnum,$cdom)=&get_course();
911: my %slots=&Apache::lonnet::dump('slots',$cdom,$cnum);
912: if ( (keys(%slots))[0] =~ /^error: 2 /) {
913: undef(%slots);
914: }
915: my $available;
916: if ($mgr eq 'F') {
917: # FIXME: This line should be deleted once Slots uses breadcrumbs
918: $r->print(&Apache::loncommon::help_open_topic('Slot About', 'Help on slots'));
919:
920: $r->print('<div>');
921: $r->print('<form method="post" action="/adm/slotrequest">
922: <input type="hidden" name="command" value="uploadstart" />
923: <input type="submit" name="start" value="'.&mt('Upload Slot List').'" />
924: </form>');
925: $r->print(&Apache::loncommon::help_open_topic('Slot CommaDelimited'));
926: $r->print('<form method="post" action="/adm/helper/newslot.helper">
927: <input type="submit" name="newslot" value="'.&mt('Create a New Slot').'" />
928: </form>');
929: $r->print(&Apache::loncommon::help_open_topic('Slot AddInterface'));
930: $r->print('</div>');
931: }
932:
933: my %Saveable_Parameters = ('show' => 'array',
934: 'when' => 'scalar',
935: 'order' => 'scalar',
936: 'deleted' => 'scalar',
937: 'name_filter_type' => 'scalar',
938: 'name_filter_value' => 'scalar',
939: );
940: &Apache::loncommon::store_course_settings('slotrequest',
941: \%Saveable_Parameters);
942: &Apache::loncommon::restore_course_settings('slotrequest',
943: \%Saveable_Parameters);
944: &Apache::grades::init_perm();
945: my ($classlist,$section,$fullname)=&Apache::grades::getclasslist('all');
946: &Apache::grades::reset_perm();
947:
948: # what to display filtering
949: my %show_fields=&Apache::lonlocal::texthash(
950: 'name' => 'Slot Name',
951: 'description' => 'Description',
952: 'type' => 'Type',
953: 'starttime' => 'Start time',
954: 'endtime' => 'End Time',
955: 'startreserve' => 'Time students can start reserving',
956: 'secret' => 'Secret Word',
957: 'space' => '# of students/max',
958: 'ip' => 'IP or DNS restrictions',
959: 'symb' => 'Resource slot is restricted to.',
960: 'allowedsections' => 'Sections slot is restricted to.',
961: 'allowedusers' => 'Users slot is restricted to.',
962: 'uniqueperiod' => 'Period of time slot is unique',
963: 'scheduled' => 'Scheduled Students',
964: 'proctor' => 'List of proctors');
965: my @show_order=('name','description','type','starttime','endtime',
966: 'startreserve','secret','space','ip','symb',
967: 'allowedsections','allowedusers','uniqueperiod',
968: 'scheduled','proctor');
969: my @show =
970: (exists($env{'form.show'})) ? &Apache::loncommon::get_env_multiple('form.show')
971: : keys(%show_fields);
972: my %show = map { $_ => 1 } (@show);
973:
974: #when filtering setup
975: my %when_fields=&Apache::lonlocal::texthash(
976: 'now' => 'Open now',
977: 'nextweek' => 'Open within the next week',
978: 'lastweek' => 'Were open last week',
979: 'willopen' => 'Will open later',
980: 'wereopen' => 'Were open',
981: 'any' => 'Anytime',
982: );
983: my @when_order=('any','now','nextweek','lastweek','willopen','wereopen');
984: $when_fields{'select_form_order'} = \@when_order;
985: my $when = (exists($env{'form.when'})) ? $env{'form.when'}
986: : 'now';
987:
988: #display of students setup
989: my %stu_display_fields=
990: &Apache::lonlocal::texthash('username' => 'User name',
991: 'fullname' => 'Full name',
992: );
993: my @stu_display_order=('fullname','username');
994: my @stu_display =
995: (exists($env{'form.studisplay'})) ? &Apache::loncommon::get_env_multiple('form.studisplay')
996: : keys(%stu_display_fields);
997: my %stu_display = map { $_ => 1 } (@stu_display);
998:
999: #name filtering setup
1000: my %name_filter_type_fields=
1001: &Apache::lonlocal::texthash('substring' => 'Substring',
1002: 'exact' => 'Exact',
1003: #'reg' => 'Regular Expression',
1004: );
1005: my @name_filter_type_order=('substring','exact');
1006:
1007: $name_filter_type_fields{'select_form_order'} = \@name_filter_type_order;
1008: my $name_filter_type =
1009: (exists($env{'form.name_filter_type'})) ? $env{'form.name_filter_type'}
1010: : 'substring';
1011: my $name_filter = {'type' => $name_filter_type,
1012: 'value' => $env{'form.name_filter_value'},};
1013:
1014:
1015: #deleted slot filtering
1016: #default to hide if no value
1017: $env{'form.deleted'} ||= 'hide';
1018: my $hide_radio =
1019: &Apache::lonhtmlcommon::radio('deleted',$env{'form.deleted'},'hide');
1020: my $show_radio =
1021: &Apache::lonhtmlcommon::radio('deleted',$env{'form.deleted'},'show');
1022:
1023: $r->print('<form method="post" action="/adm/slotrequest">
1024: <input type="hidden" name="command" value="showslots" />');
1025: $r->print('<div>');
1026: $r->print('<table class="inline">
1027: <tr><th>'.&mt('Show').'</th>
1028: <th>'.&mt('Student Display').'</th>
1029: <th>'.&mt('Open').'</th>
1030: <th>'.&mt('Slot Name Filter').'</th>
1031: <th>'.&mt('Options').'</th>
1032: </tr>
1033: <tr><td>'.&Apache::loncommon::multiple_select_form('show',\@show,6,\%show_fields,\@show_order).
1034: '</td>
1035: <td>
1036: '.&Apache::loncommon::multiple_select_form('studisplay',\@stu_display,
1037: 6,\%stu_display_fields,
1038: \@stu_display_order).'
1039: </td>
1040: <td>'.&Apache::loncommon::select_form($when,'when',%when_fields).
1041: '</td>
1042: <td>'.&Apache::loncommon::select_form($name_filter_type,
1043: 'name_filter_type',
1044: %name_filter_type_fields).
1045: '<br />'.
1046: &Apache::lonhtmlcommon::textbox('name_filter_value',
1047: $env{'form.name_filter_value'},
1048: 15).
1049: '</td>
1050: <td>
1051: <table>
1052: <tr>
1053: <td rowspan="2">Deleted slots:</td>
1054: <td><label>'.$show_radio.'Show</label></td>
1055: </tr>
1056: <tr>
1057: <td><label>'.$hide_radio.'Hide</label></td>
1058: </tr>
1059: </table>
1060: </td>
1061: </tr>
1062: </table>');
1063: $r->print('</div>');
1064: $r->print('<p><input type="submit" name="start" value="'.&mt('Update Display').'" /></p>');
1065: my $linkstart='<a href="/adm/slotrequest?command=showslots&order=';
1066: $r->print(&Apache::loncommon::start_data_table().
1067: &Apache::loncommon::start_data_table_header_row().'
1068: <th></th>');
1069: foreach my $which (@show_order) {
1070: if ($which ne 'proctor' && exists($show{$which})) {
1071: $r->print('<th>'.$linkstart.$which.'">'.$show_fields{$which}.'</a></th>');
1072: }
1073: }
1074: $r->print(&Apache::loncommon::end_data_table_header_row());
1075:
1076: my %name_cache;
1077: my $slotsort = sub {
1078: if ($env{'form.order'}=~/^(type|description|endtime|startreserve|ip|symb|allowedsections|allowedusers)$/) {
1079: if (lc($slots{$a}->{$env{'form.order'}})
1080: ne lc($slots{$b}->{$env{'form.order'}})) {
1081: return (lc($slots{$a}->{$env{'form.order'}})
1082: cmp lc($slots{$b}->{$env{'form.order'}}));
1083: }
1084: } elsif ($env{'form.order'} eq 'space') {
1085: if ($slots{$a}{'maxspace'} ne $slots{$b}{'maxspace'}) {
1086: return ($slots{$a}{'maxspace'} cmp $slots{$b}{'maxspace'});
1087: }
1088: } elsif ($env{'form.order'} eq 'name') {
1089: if (lc($a) cmp lc($b)) {
1090: return lc($a) cmp lc($b);
1091: }
1092: } elsif ($env{'form.order'} eq 'uniqueperiod') {
1093:
1094: if ($slots{$a}->{'uniqueperiod'}[0]
1095: ne $slots{$b}->{'uniqueperiod'}[0]) {
1096: return ($slots{$a}->{'uniqueperiod'}[0]
1097: cmp $slots{$b}->{'uniqueperiod'}[0]);
1098: }
1099: if ($slots{$a}->{'uniqueperiod'}[1]
1100: ne $slots{$b}->{'uniqueperiod'}[1]) {
1101: return ($slots{$a}->{'uniqueperiod'}[1]
1102: cmp $slots{$b}->{'uniqueperiod'}[1]);
1103: }
1104: }
1105: return $slots{$a}->{'starttime'} <=> $slots{$b}->{'starttime'};
1106: };
1107:
1108: my %consumed;
1109: if (exists($show{'scheduled'}) || exists($show{'space'}) ) {
1110: %consumed=&Apache::lonnet::dump('slot_reservations',$cdom,$cnum);
1111: my ($tmp)=%consumed;
1112: if ($tmp =~ /^error: /) { undef(%consumed); }
1113: }
1114:
1115: foreach my $slot (sort $slotsort (keys(%slots))) {
1116: if (!&to_show($slot,$slots{$slot},$when,
1117: $env{'form.deleted'},$name_filter)) { next; }
1118: if (defined($slots{$slot}->{'type'})
1119: && $slots{$slot}->{'type'} ne 'schedulable_student') {
1120: #next;
1121: }
1122: my $description=&get_description($slot,$slots{$slot});
1123: my ($id_count,$ids);
1124:
1125: if (exists($show{'scheduled'}) || exists($show{'space'}) ) {
1126: my $re_str = "$slot\0";
1127: my @this_slot = grep(/^\Q$re_str\E/,keys(%consumed));
1128: $id_count = scalar(@this_slot);
1129: if (exists($show{'scheduled'})) {
1130: foreach my $entry (sort { $consumed{$a}{name} cmp
1131: $consumed{$b}{name} }
1132: (@this_slot)) {
1133: my (undef,$id)=split("\0",$entry);
1134: my ($uname,$udom) = split(':',$consumed{$entry}{'name'});
1135: $ids.= '<nobr>';
1136: foreach my $item (@stu_display_order) {
1137: if ($stu_display{$item}) {
1138: if ($item eq 'fullname') {
1139: $ids.=$fullname->{"$uname:$udom"}.' ';
1140: } elsif ($item eq 'username') {
1141: $ids.="<tt>$uname:$udom</tt> ";
1142: }
1143: }
1144: }
1145: $ids.=&remove_link($slot,$entry,$uname,$udom,
1146: $consumed{$entry}{'symb'}).'</nobr><br />';
1147: }
1148: }
1149: }
1150:
1151: my $start=($slots{$slot}->{'starttime'}?
1152: &Apache::lonlocal::locallocaltime($slots{$slot}->{'starttime'}):'');
1153: my $end=($slots{$slot}->{'endtime'}?
1154: &Apache::lonlocal::locallocaltime($slots{$slot}->{'endtime'}):'');
1155: my $start_reserve=($slots{$slot}->{'startreserve'}?
1156: &Apache::lonlocal::locallocaltime($slots{$slot}->{'startreserve'}):'');
1157:
1158: my $unique;
1159: if (ref($slots{$slot}{'uniqueperiod'})) {
1160: $unique=localtime($slots{$slot}{'uniqueperiod'}[0]).', '.
1161: localtime($slots{$slot}{'uniqueperiod'}[1]);
1162: }
1163:
1164: my $title;
1165: if (exists($slots{$slot}{'symb'})) {
1166: my (undef,undef,$res)=
1167: &Apache::lonnet::decode_symb($slots{$slot}{'symb'});
1168: $res = &Apache::lonnet::clutter($res);
1169: $title = &Apache::lonnet::gettitle($slots{$slot}{'symb'});
1170: $title='<a href="'.$res.'?symb='.$slots{$slot}{'symb'}.'">'.$title.'</a>';
1171: }
1172:
1173: my $allowedsections;
1174: if (exists($show{'allowedsections'})) {
1175: $allowedsections =
1176: join(', ',sort(split(/\s*,\s*/,
1177: $slots{$slot}->{'allowedsections'})));
1178: }
1179:
1180: my @allowedusers;
1181: if (exists($show{'allowedusers'})) {
1182: @allowedusers= map {
1183: my ($uname,$udom)=split(/:/,$_);
1184: my $fullname=$name_cache{$_};
1185: if (!defined($fullname)) {
1186: $fullname = &Apache::loncommon::plainname($uname,$udom);
1187: $fullname =~s/\s/ /g;
1188: $name_cache{$_} = $fullname;
1189: }
1190: &Apache::loncommon::aboutmewrapper($fullname,$uname,$udom);
1191: } (sort(split(/\s*,\s*/,$slots{$slot}->{'allowedusers'})));
1192: }
1193: my $allowedusers=join(', ',@allowedusers);
1194:
1195: my @proctors;
1196: my $rowspan=1;
1197: my $colspan=1;
1198: if (exists($show{'proctor'})) {
1199: $rowspan=2;
1200: @proctors= map {
1201: my ($uname,$udom)=split(/:/,$_);
1202: my $fullname=$name_cache{$_};
1203: if (!defined($fullname)) {
1204: $fullname = &Apache::loncommon::plainname($uname,$udom);
1205: $fullname =~s/\s/ /g;
1206: $name_cache{$_} = $fullname;
1207: }
1208: &Apache::loncommon::aboutmewrapper($fullname,$uname,$udom);
1209: } (sort(split(/\s*,\s*/,$slots{$slot}->{'proctor'})));
1210: }
1211: my $proctors=join(', ',@proctors);
1212:
1213: my $edit=(<<"EDITLINK");
1214: <a href="/adm/helper/newslot.helper?name=$slot">Edit</a>
1215: EDITLINK
1216:
1217: my $delete=(<<"DELETELINK");
1218: <a href="/adm/slotrequest?command=delete&slotname=$slot">Delete</a>
1219: DELETELINK
1220:
1221: my $remove_all=&remove_link($slot,'remove all').'<br />';
1222:
1223: if ($ids ne '') { undef($delete); }
1224: if ($slots{$slot}{'type'} ne 'schedulable_student'
1225: || $ids eq '') {
1226: undef($remove_all);
1227: }
1228:
1229: my $row_start=&Apache::loncommon::start_data_table_row();
1230: my $row_end=&Apache::loncommon::end_data_table_row();
1231: $r->print($row_start.
1232: "\n<td rowspan=\"$rowspan\">$edit $delete</td>\n");
1233: if (exists($show{'name'})) {
1234: $colspan++;$r->print("<td>$slot</td>");
1235: }
1236: if (exists($show{'description'})) {
1237: $colspan++;$r->print("<td>$description</td>\n");
1238: }
1239: if (exists($show{'type'})) {
1240: $colspan++;$r->print("<td>$slots{$slot}->{'type'}</td>\n");
1241: }
1242: if (exists($show{'starttime'})) {
1243: $colspan++;$r->print("<td>$start</td>\n");
1244: }
1245: if (exists($show{'endtime'})) {
1246: $colspan++;$r->print("<td>$end</td>\n");
1247: }
1248: if (exists($show{'startreserve'})) {
1249: $colspan++;$r->print("<td>$start_reserve</td>\n");
1250: }
1251: if (exists($show{'secret'})) {
1252: $colspan++;$r->print("<td>$slots{$slot}{'secret'}</td>\n");
1253: }
1254: if (exists($show{'space'})) {
1255: my $display = $id_count;
1256: if ($slots{$slot}{'maxspace'}>0) {
1257: $display.='/'.$slots{$slot}{'maxspace'};
1258: if ($slots{$slot}{'maxspace'} <= $id_count) {
1259: $display = '<strong>'.$display.' (full) </strong>';
1260: }
1261: }
1262: $colspan++;$r->print("<td>$display</td>\n");
1263: }
1264: if (exists($show{'ip'})) {
1265: $colspan++;$r->print("<td>$slots{$slot}{'ip'}</td>\n");
1266: }
1267: if (exists($show{'symb'})) {
1268: $colspan++;$r->print("<td>$title</td>\n");
1269: }
1270: if (exists($show{'allowedsections'})) {
1271: $colspan++;$r->print("<td>$allowedsections</td>\n");
1272: }
1273: if (exists($show{'allowedusers'})) {
1274: $colspan++;$r->print("<td>$allowedusers</td>\n");
1275: }
1276: if (exists($show{'uniqueperiod'})) {
1277: $colspan++;$r->print("<td>$unique</td>\n");
1278: }
1279: if (exists($show{'scheduled'})) {
1280: $colspan++;$r->print("<td>$remove_all $ids</td>\n");
1281: }
1282: $r->print("$row_end\n");
1283: if (exists($show{'proctor'})) {
1284: $r->print(<<STUFF);
1285: $row_start
1286: <td colspan="$colspan">$proctors</td>
1287: $row_end
1288: STUFF
1289: }
1290: }
1291: $r->print('</table></form>');
1292: }
1293:
1294: sub upload_start {
1295: my ($r)=@_;
1296: $r->print(&Apache::grades::checkforfile_js());
1297: my $result.='<table width=100% border=0><tr bgcolor="#e6ffff"><td>'."\n";
1298: $result.=' <b>'.
1299: &mt('Specify a file containing the slot definitions.').
1300: '</b></td></tr>'."\n";
1301: $result.='<tr bgcolor=#ffffe6><td>'."\n";
1302: my $upfile_select=&Apache::loncommon::upfile_select_html();
1303: my $ignore=&mt('Ignore First Line');
1304: $result.=<<ENDUPFORM;
1305: <form method="post" enctype="multipart/form-data" action="/adm/slotrequest" name="slotupload">
1306: <input type="hidden" name="command" value="csvuploadmap" />
1307: $upfile_select
1308: <br /><input type="button" onClick="javascript:checkUpload(this.form);" value="Upload Data" />
1309: <label><input type="checkbox" name="noFirstLine" />$ignore</label>
1310: </form>
1311: ENDUPFORM
1312: $result.='</td></tr></table>'."\n";
1313: $result.='</td></tr></table>'."\n";
1314: $r->print($result);
1315: }
1316:
1317: sub csvuploadmap_header {
1318: my ($r,$datatoken,$distotal)= @_;
1319: my $javascript;
1320: if ($env{'form.upfile_associate'} eq 'reverse') {
1321: $javascript=&csvupload_javascript_reverse_associate();
1322: } else {
1323: $javascript=&csvupload_javascript_forward_associate();
1324: }
1325:
1326: my $checked=(($env{'form.noFirstLine'})?' checked="checked"':'');
1327: my $ignore=&mt('Ignore First Line');
1328: my $help_field = &Apache::loncommon::help_open_topic('Slot SelectingField');
1329:
1330: $r->print(<<ENDPICK);
1331: <form method="post" enctype="multipart/form-data" action="/adm/slotrequest" name="slotupload">
1332: <h3>Identify fields $help_field</h3>
1333: Total number of records found in file: $distotal <hr />
1334: Enter as many fields as you can. The system will inform you and bring you back
1335: to this page if the data selected is insufficient to create the slots.<hr />
1336: <input type="button" value="Reverse Association" onClick="javascript:this.form.associate.value='Reverse Association';submit(this.form);" />
1337: <label><input type="checkbox" name="noFirstLine" $checked />$ignore</label>
1338: <input type="hidden" name="associate" value="" />
1339: <input type="hidden" name="datatoken" value="$datatoken" />
1340: <input type="hidden" name="fileupload" value="$env{'form.fileupload'}" />
1341: <input type="hidden" name="upfiletype" value="$env{'form.upfiletype'}" />
1342: <input type="hidden" name="upfile_associate"
1343: value="$env{'form.upfile_associate'}" />
1344: <input type="hidden" name="command" value="csvuploadassign" />
1345: <hr />
1346: <script type="text/javascript" language="Javascript">
1347: $javascript
1348: </script>
1349: ENDPICK
1350: return '';
1351:
1352: }
1353:
1354: sub csvuploadmap_footer {
1355: my ($request,$i,$keyfields) =@_;
1356: $request->print(<<ENDPICK);
1357: </table>
1358: <input type="hidden" name="nfields" value="$i" />
1359: <input type="hidden" name="keyfields" value="$keyfields" />
1360: <input type="button" onClick="javascript:verify(this.form)" value="Create Slots" /><br />
1361: </form>
1362: ENDPICK
1363: }
1364:
1365: sub csvupload_javascript_reverse_associate {
1366: my $error1=&mt('You need to specify the name, starttime, endtime and a type');
1367: return(<<ENDPICK);
1368: function verify(vf) {
1369: var foundstart=0;
1370: var foundend=0;
1371: var foundname=0;
1372: var foundtype=0;
1373: for (i=0;i<=vf.nfields.value;i++) {
1374: tw=eval('vf.f'+i+'.selectedIndex');
1375: if (i==0 && tw!=0) { foundname=1; }
1376: if (i==1 && tw!=0) { foundtype=1; }
1377: if (i==2 && tw!=0) { foundstat=1; }
1378: if (i==3 && tw!=0) { foundend=1; }
1379: }
1380: if (foundstart==0 && foundend==0 && foundtype==0 && foundname==0) {
1381: alert('$error1');
1382: return;
1383: }
1384: vf.submit();
1385: }
1386: function flip(vf,tf) {
1387: }
1388: ENDPICK
1389: }
1390:
1391: sub csvupload_javascript_forward_associate {
1392: my $error1=&mt('You need to specify the name, starttime, endtime and a type');
1393: return(<<ENDPICK);
1394: function verify(vf) {
1395: var foundstart=0;
1396: var foundend=0;
1397: var foundname=0;
1398: var foundtype=0;
1399: for (i=0;i<=vf.nfields.value;i++) {
1400: tw=eval('vf.f'+i+'.selectedIndex');
1401: if (tw==1) { foundname=1; }
1402: if (tw==2) { foundtype=1; }
1403: if (tw==3) { foundstat=1; }
1404: if (tw==4) { foundend=1; }
1405: }
1406: if (foundstart==0 && foundend==0 && foundtype==0 && foundname==0) {
1407: alert('$error1');
1408: return;
1409: }
1410: vf.submit();
1411: }
1412: function flip(vf,tf) {
1413: }
1414: ENDPICK
1415: }
1416:
1417: sub csv_upload_map {
1418: my ($r)= @_;
1419:
1420: my $datatoken;
1421: if (!$env{'form.datatoken'}) {
1422: $datatoken=&Apache::loncommon::upfile_store($r);
1423: } else {
1424: $datatoken=$env{'form.datatoken'};
1425: &Apache::loncommon::load_tmp_file($r);
1426: }
1427: my @records=&Apache::loncommon::upfile_record_sep();
1428: if ($env{'form.noFirstLine'}) { shift(@records); }
1429: &csvuploadmap_header($r,$datatoken,$#records+1);
1430: my ($i,$keyfields);
1431: if (@records) {
1432: my @fields=&csvupload_fields();
1433:
1434: if ($env{'form.upfile_associate'} eq 'reverse') {
1435: &Apache::loncommon::csv_print_samples($r,\@records);
1436: $i=&Apache::loncommon::csv_print_select_table($r,\@records,
1437: \@fields);
1438: foreach (@fields) { $keyfields.=$_->[0].','; }
1439: chop($keyfields);
1440: } else {
1441: unshift(@fields,['none','']);
1442: $i=&Apache::loncommon::csv_samples_select_table($r,\@records,
1443: \@fields);
1444: my %sone=&Apache::loncommon::record_sep($records[0]);
1445: $keyfields=join(',',sort(keys(%sone)));
1446: }
1447: }
1448: &csvuploadmap_footer($r,$i,$keyfields);
1449:
1450: return '';
1451: }
1452:
1453: sub csvupload_fields {
1454: return (['name','Slot name'],
1455: ['type','Type of slot'],
1456: ['starttime','Start Time of slot'],
1457: ['endtime','End Time of slot'],
1458: ['startreserve','Reservation Start Time'],
1459: ['ip','IP or DNS restriction'],
1460: ['proctor','List of proctor ids'],
1461: ['description','Slot Description'],
1462: ['maxspace','Maximum number of reservations'],
1463: ['symb','Resource Restriction'],
1464: ['uniqueperiod','Date range of slot exclusion'],
1465: ['secret','Secret word proctor uses to validate'],
1466: ['allowedsections','Sections slot is restricted to'],
1467: ['allowedusers','Users slot is restricted to'],
1468: );
1469: }
1470:
1471: sub csv_upload_assign {
1472: my ($r,$mgr)= @_;
1473: &Apache::loncommon::load_tmp_file($r);
1474: my @slotdata = &Apache::loncommon::upfile_record_sep();
1475: if ($env{'form.noFirstLine'}) { shift(@slotdata); }
1476: my %fields=&Apache::grades::get_fields();
1477: $r->print('<h3>Creating Slots</h3>');
1478: my $cname=$env{'course.'.$env{'request.course.id'}.'.num'};
1479: my $cdom=$env{'course.'.$env{'request.course.id'}.'.domain'};
1480: my $countdone=0;
1481: my @errors;
1482: foreach my $slot (@slotdata) {
1483: my %slot;
1484: my %entries=&Apache::loncommon::record_sep($slot);
1485: my $domain;
1486: my $name=$entries{$fields{'name'}};
1487: if ($name=~/^\s*$/) {
1488: push(@errors,"Did not create slot with no name");
1489: next;
1490: }
1491: if ($name=~/\s/) {
1492: push(@errors,"$name not created -- Name must not contain spaces");
1493: next;
1494: }
1495: if ($name=~/\W/) {
1496: push(@errors,"$name not created -- Name must contain only letters, numbers and _");
1497: next;
1498: }
1499: if ($entries{$fields{'type'}}) {
1500: $slot{'type'}=$entries{$fields{'type'}};
1501: } else {
1502: $slot{'type'}='preassigned';
1503: }
1504: if ($slot{'type'} ne 'preassigned' &&
1505: $slot{'type'} ne 'schedulable_student') {
1506: push(@errors,"$name not created -- invalid type ($slot{'type'}) must be either preassigned or schedulable_student");
1507: next;
1508: }
1509: if ($entries{$fields{'starttime'}}) {
1510: $slot{'starttime'}=&UnixDate($entries{$fields{'starttime'}},"%s");
1511: }
1512: if ($entries{$fields{'endtime'}}) {
1513: $slot{'endtime'}=&UnixDate($entries{$fields{'endtime'}},"%s");
1514: }
1515:
1516: # start/endtime must be defined and greater than zero
1517: if (!$slot{'starttime'}) {
1518: push(@errors,"$name not created -- Invalid start time");
1519: next;
1520: }
1521: if (!$slot{'endtime'}) {
1522: push(@errors,"$name not created -- Invalid end time");
1523: next;
1524: }
1525: if ($slot{'starttime'} > $slot{'endtime'}) {
1526: push(@errors,"$name not created -- Slot starts after it ends");
1527: next;
1528: }
1529:
1530: if ($entries{$fields{'startreserve'}}) {
1531: $slot{'startreserve'}=
1532: &UnixDate($entries{$fields{'startreserve'}},"%s");
1533: }
1534: if (defined($slot{'startreserve'})
1535: && $slot{'startreserve'} > $slot{'starttime'}) {
1536: push(@errors,"$name not created -- Slot's reservation start time is after the slot's start time.");
1537: next;
1538: }
1539:
1540: foreach my $key ('ip','proctor','description','maxspace',
1541: 'secret','symb') {
1542: if ($entries{$fields{$key}}) {
1543: $slot{$key}=$entries{$fields{$key}};
1544: }
1545: }
1546:
1547: if ($entries{$fields{'uniqueperiod'}}) {
1548: my ($start,$end)=split(',',$entries{$fields{'uniqueperiod'}});
1549: my @times=(&UnixDate($start,"%s"),
1550: &UnixDate($end,"%s"));
1551: $slot{'uniqueperiod'}=\@times;
1552: }
1553: if (defined($slot{'uniqueperiod'})
1554: && $slot{'uniqueperiod'}[0] > $slot{'uniqueperiod'}[1]) {
1555: push(@errors,"$name not created -- Slot's unique period start time is later than the unique period's end time.");
1556: next;
1557: }
1558:
1559: &Apache::lonnet::cput('slots',{$name=>\%slot},$cdom,$cname);
1560: $r->print('.');
1561: $r->rflush();
1562: $countdone++;
1563: }
1564: $r->print("<p>Created $countdone slots\n</p>");
1565: foreach my $error (@errors) {
1566: $r->print("<p><span class=\"LC_warning\">$error</span></p>\n");
1567: }
1568: &show_table($r,$mgr);
1569: return '';
1570: }
1571:
1572: sub handler {
1573: my $r=shift;
1574:
1575: &Apache::loncommon::content_type($r,'text/html');
1576: &Apache::loncommon::no_cache($r);
1577: if ($r->header_only()) {
1578: $r->send_http_header();
1579: return OK;
1580: }
1581:
1582: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'});
1583:
1584: my $vgr=&Apache::lonnet::allowed('vgr',$env{'request.course.id'});
1585: my $mgr=&Apache::lonnet::allowed('mgr',$env{'request.course.id'});
1586: my $title='Requesting Another Worktime';
1587: if ($env{'form.command'} =~ /^(showslots|uploadstart|csvuploadmap|csvuploadassign)$/ && $vgr eq 'F') {
1588: $title = 'Managing Slots';
1589: }
1590: &start_page($r,$title);
1591:
1592: if ($env{'form.command'} eq 'showslots' && $vgr eq 'F') {
1593: &show_table($r,$mgr);
1594: } elsif ($env{'form.command'} eq 'remove_registration' && $mgr eq 'F') {
1595: &remove_registration($r);
1596: } elsif ($env{'form.command'} eq 'release' && $mgr eq 'F') {
1597: if ($env{'form.entry'} eq 'remove all') {
1598: &release_all_slot($r,$mgr);
1599: } else {
1600: &release_slot($r,undef,undef,undef,$mgr);
1601: }
1602: } elsif ($env{'form.command'} eq 'delete' && $mgr eq 'F') {
1603: &delete_slot($r);
1604: } elsif ($env{'form.command'} eq 'uploadstart' && $mgr eq 'F') {
1605: &upload_start($r);
1606: } elsif ($env{'form.command'} eq 'csvuploadmap' && $mgr eq 'F') {
1607: &csv_upload_map($r);
1608: } elsif ($env{'form.command'} eq 'csvuploadassign' && $mgr eq 'F') {
1609: if ($env{'form.associate'} ne 'Reverse Association') {
1610: &csv_upload_assign($r,$mgr);
1611: } else {
1612: if ( $env{'form.upfile_associate'} ne 'reverse' ) {
1613: $env{'form.upfile_associate'} = 'reverse';
1614: } else {
1615: $env{'form.upfile_associate'} = 'forward';
1616: }
1617: &csv_upload_map($r);
1618: }
1619: } else {
1620: my $symb=&unescape($env{'form.symb'});
1621: if (!defined($symb)) {
1622: &fail($r,'not_valid');
1623: return OK;
1624: }
1625: my (undef,undef,$res)=&Apache::lonnet::decode_symb($symb);
1626: my $useslots = &Apache::lonnet::EXT("resource.0.useslots",$symb);
1627: if ($useslots ne 'resource'
1628: && $useslots ne 'map'
1629: && $useslots ne 'map_map') {
1630: &fail($r,'not_available');
1631: return OK;
1632: }
1633: $env{'request.symb'}=$symb;
1634: my $type = ($res =~ /\.task$/) ? 'Task'
1635: : 'problem';
1636: my ($status) = &Apache::lonhomework::check_slot_access('0',$type);
1637: if ($status eq 'CAN_ANSWER' ||
1638: $status eq 'NEEDS_CHECKIN' ||
1639: $status eq 'WAITING_FOR_GRADE') {
1640: &fail($r,'not_allowed');
1641: return OK;
1642: }
1643: if ($env{'form.requestattempt'}) {
1644: &show_choices($r,$symb);
1645: } elsif ($env{'form.command'} eq 'release') {
1646: &release_slot($r,$symb);
1647: } elsif ($env{'form.command'} eq 'get') {
1648: &get_slot($r,$symb);
1649: } elsif ($env{'form.command'} eq 'change') {
1650: if (&get_slot($r,$symb,$env{'form.releaseslot'},1)) {
1651: &release_slot($r,$symb,$env{'form.releaseslot'});
1652: }
1653: } else {
1654: $r->print("<p>Unknown command: ".$env{'form.command'}."</p>");
1655: }
1656: }
1657: &end_page($r);
1658: return OK;
1659: }
1660:
1661: 1;
1662: __END__
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