1: # The LearningOnline Network with CAPA
2: # Handler for requesting to have slots added to a students record
3: #
4: # $Id: slotrequest.pm,v 1.76 2007/04/10 23:30:41 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");
245: &Apache::lonxml::debug("use_slots is $use_slots<br />");
246:
247: if (&Apache::lonnet::error($value)
248: || &Apache::lonnet::error($use_slots)) {
249: return 'error: Unable to determine current status';
250: }
251:
252: my $parm_symb = $symb;
253: my $parm_level = 1;
254: if ($use_slots eq 'map' || $use_slots eq 'map_map') {
255: my ($map) = &Apache::lonnet::decode_symb($symb);
256: $parm_symb = &Apache::lonnet::symbread($map);
257: $parm_level = 2;
258: }
259:
260: foreach my $other_slot (split(/:/, $value)) {
261: if ($other_slot eq $slot_name) {
262: my %consumed=&Apache::lonnet::dump('slot_reservations', $cdom,
263: $cnum, "^$slot_name\0");
264: if (&Apache::lonnet::error($value)) {
265: return 'error: Unable to determine current status';
266: }
267: my $me=$env{'user.name'}.':'.$env{'user.domain'};
268: foreach my $key (keys(%consumed)) {
269: if ($consumed{$key}->{'name'} eq $me) {
270: my $num=(split('\0',$key))[1];
271: return -$num;
272: }
273: }
274: }
275: }
276:
277: my $max=$slot->{'maxspace'};
278: if (!defined($max)) { $max=99999; }
279:
280: my (@ids)=&get_reservation_ids($slot_name);
281: if (&Apache::lonnet::error(@ids)) {
282: return 'error: Unable to determine current status';
283: }
284: my $last=0;
285: foreach my $id (@ids) {
286: my $num=(split('\0',$id))[1];
287: if ($num > $last) { $last=$num; }
288: }
289:
290: my $wanted=$last+1;
291: &Apache::lonxml::debug("wanted $wanted<br />");
292: if (scalar(@ids) >= $max) {
293: # full up
294: return undef;
295: }
296:
297: my %reservation=('name' => $env{'user.name'}.':'.$env{'user.domain'},
298: 'timestamp' => time,
299: 'symb' => $parm_symb);
300:
301: my $success=&Apache::lonnet::newput('slot_reservations',
302: {"$slot_name\0$wanted" =>
303: \%reservation},
304: $cdom, $cnum);
305:
306: if ($success eq 'ok') {
307: my $new_value=$slot_name;
308: if ($value) {
309: $new_value=$value.':'.$new_value;
310: }
311: my $result=&Apache::lonparmset::storeparm_by_symb($symb,
312: '0_availablestudent',
313: $parm_level, $new_value,
314: 'string',
315: $env{'user.name'},
316: $env{'user.domain'});
317: &Apache::lonxml::debug("hrrm $result");
318: return $wanted;
319: }
320:
321: # someone else got it
322: return undef;
323: }
324:
325: sub remove_registration {
326: my ($r) = @_;
327: if ($env{'form.entry'} ne 'remove all') {
328: return &remove_registration_user($r);
329: }
330: my $slot_name = $env{'form.slotname'};
331: my %slot=&Apache::lonnet::get_slot($slot_name);
332:
333: my ($cnum,$cdom)=&get_course();
334: my %consumed=&Apache::lonnet::dump('slot_reservations',$cdom,$cnum,
335: "^$slot_name\0");
336: if (&Apache::lonnet::error(%consumed)) {
337: $r->print("<p>".&mt('A network error has occured.').'</p>');
338: return;
339: }
340: if (!%consumed) {
341: $r->print("<p>".&mt('Slot <tt>[_1]</tt> has no reservations.',
342: $slot_name)."</p>");
343: return;
344: }
345:
346: my @names = map { $consumed{$_}{'name'} } (sort(keys(%consumed)));
347: my $names = join(' ',@names);
348:
349: my $msg = &mt('Remove all of [_1] from slot [_2]?',$names,$slot_name);
350: &remove_registration_confirmation($r,$msg,['entry','slotname']);
351: }
352:
353: sub remove_registration_user {
354: my ($r) = @_;
355:
356: my $slot_name = $env{'form.slotname'};
357:
358: my $name = &Apache::loncommon::plainname($env{'form.uname'},
359: $env{'form.udom'});
360:
361: my $title = &Apache::lonnet::gettitle($env{'form.symb'});
362:
363: my $msg = &mt('Remove [_1] from slot [_2] for [_3]',
364: $name,$slot_name,$title);
365:
366: &remove_registration_confirmation($r,$msg,['uname','udom','slotname',
367: 'entry','symb']);
368: }
369:
370: sub remove_registration_confirmation {
371: my ($r,$msg,$inputs) =@_;
372:
373: my $hidden_input;
374: foreach my $parm (@{$inputs}) {
375: $hidden_input .=
376: '<input type="hidden" name="'.$parm.'" value="'
377: .&HTML::Entities::encode($env{'form.'.$parm},'"<>&\'').'" />'."\n";
378: }
379: my %lt = &Apache::lonlocal::texthash('yes' => 'Yes',
380: 'no' => 'No',);
381: $r->print(<<"END_CONFIRM");
382: <p> $msg </p>
383: <form action="/adm/slotrequest" method="post">
384: <input type="hidden" name="command" value="release" />
385: <input type="hidden" name="button" value="yes" />
386: $hidden_input
387: <input type="submit" value="$lt{'yes'}" />
388: </form>
389: <form action="/adm/slotrequest" method="post">
390: <input type="hidden" name="command" value="showslots" />
391: <input type="submit" value="$lt{'no'}" />
392: </form>
393: END_CONFIRM
394:
395: }
396:
397: sub release_all_slot {
398: my ($r,$mgr)=@_;
399:
400: my $slot_name = $env{'form.slotname'};
401:
402: my ($cnum,$cdom)=&get_course();
403:
404: my %consumed=&Apache::lonnet::dump('slot_reservations',$cdom,$cnum,
405: "^$slot_name\0");
406:
407: $r->print('<p>'.&mt('Releasing reservations').'</p>');
408:
409: foreach my $entry (sort { $consumed{$a}{'name'} cmp
410: $consumed{$b}{'name'} } (keys(%consumed))) {
411: my ($uname,$udom) = split(':',$consumed{$entry}{'name'});
412: my ($result,$msg) =
413: &release_reservation($slot_name,$uname,$udom,
414: $consumed{$entry}{'symb'},$mgr);
415: $r->print("<p>$msg</p>");
416: $r->rflush();
417: }
418: $r->print('<p><a href="/adm/slotrequest?command=showslots">'.
419: &mt('Return to slot list').'</a></p>');
420: &return_link($r);
421: }
422:
423: sub release_slot {
424: my ($r,$symb,$slot_name,$inhibit_return_link,$mgr)=@_;
425:
426: if ($slot_name eq '') { $slot_name=$env{'form.slotname'}; }
427:
428: my ($uname,$udom) = ($env{'user.name'}, $env{'user.domain'});
429: if ($mgr eq 'F'
430: && defined($env{'form.uname'}) && defined($env{'form.udom'})) {
431: ($uname,$udom) = ($env{'form.uname'}, $env{'form.udom'});
432: }
433:
434: if ($mgr eq 'F'
435: && defined($env{'form.symb'})) {
436: $symb = &unescape($env{'form.symb'});
437: }
438:
439: my ($result,$msg) =
440: &release_reservation($slot_name,$uname,$udom,$symb,$mgr);
441: $r->print("<p>$msg</p>");
442:
443: if ($mgr eq 'F') {
444: $r->print('<p><a href="/adm/slotrequest?command=showslots">'.
445: &mt('Return to slot list').'</a></p>');
446: }
447:
448: if (!$inhibit_return_link) { &return_link($r); }
449: return $result;
450: }
451:
452: sub release_reservation {
453: my ($slot_name,$uname,$udom,$symb,$mgr) = @_;
454: my %slot=&Apache::lonnet::get_slot($slot_name);
455: my $description=&get_description($slot_name,\%slot);
456:
457: if ($mgr ne 'F') {
458: if ($slot{'starttime'} < time) {
459: return (0,&mt('Not allowed to release Reservation: [_1], as it has already ended.',$description));
460: }
461: }
462: # get parameter string, check for existance, rebuild string with the slot
463: my @slots = split(/:/,&Apache::lonnet::EXT("resource.0.availablestudent",
464: $symb,$udom,$uname));
465:
466: my @new_slots;
467: foreach my $exist_slot (@slots) {
468: if ($exist_slot eq $slot_name) { next; }
469: push(@new_slots,$exist_slot);
470: }
471: my $new_param = join(':',@new_slots);
472:
473: my ($cnum,$cdom)=&get_course();
474:
475: # get slot reservations, check if user has one, if so remove reservation
476: my %consumed=&Apache::lonnet::dump('slot_reservations',$cdom,$cnum,
477: "^$slot_name\0");
478: foreach my $entry (keys(%consumed)) {
479: if ( $consumed{$entry}->{'name'} eq ($uname.':'.$udom) ) {
480: &Apache::lonnet::del('slot_reservations',[$entry],
481: $cdom,$cnum);
482: }
483: }
484:
485: my $use_slots = &Apache::lonnet::EXT("resource.0.useslots");
486: &Apache::lonxml::debug("use_slots is $use_slots<br />");
487:
488: if (&Apache::lonnet::error($use_slots)) {
489: return (0,'error: Unable to determine current status');
490: }
491:
492: my $parm_level = 1;
493: if ($use_slots eq 'map' || $use_slots eq 'map_map') {
494: $parm_level = 2;
495: }
496: # store new parameter string
497: my $result=&Apache::lonparmset::storeparm_by_symb($symb,
498: '0_availablestudent',
499: $parm_level, $new_param,
500: 'string', $uname, $udom);
501:
502: my $msg;
503: if ($mgr eq 'F') {
504: $msg = &mt('Released Reservation for user: [_1]',"$uname:$udom");
505: } else {
506: $msg = &mt('Released Reservation: [_1]',$description);
507: }
508: return (1,$msg);
509: }
510:
511: sub delete_slot {
512: my ($r)=@_;
513:
514: my $slot_name = $env{'form.slotname'};
515: my %slot=&Apache::lonnet::get_slot($slot_name);
516:
517: my ($cnum,$cdom)=&get_course();
518: my %consumed=&Apache::lonnet::dump('slot_reservations',$cdom,$cnum,
519: "^$slot_name\0");
520: my ($tmp) = %consumed;
521: if ($tmp =~ /error: 2/) { undef(%consumed); }
522:
523: if (%slot && !%consumed) {
524: $slot{'type'} = 'deleted';
525: my $ret = &Apache::lonnet::cput('slots', {$slot_name => \%slot},
526: $cdom, $cnum);
527: if ($ret eq 'ok') {
528: $r->print("<p>Slot <tt>$slot_name</tt> marked as deleted.</p>");
529: } else {
530: $r->print("<p> An error ($ret) occurse when attempting to delete Slot <tt>$slot_name</tt>.</p>");
531: }
532: } else {
533: if (%consumed) {
534: $r->print("<p>Slot <tt>$slot_name</tt> has active reservations.</p>");
535: } else {
536: $r->print("<p>Slot <tt>$slot_name</tt> does not exist.</p>");
537: }
538: }
539: $r->print('<p><a href="/adm/slotrequest?command=showslots">'.
540: &mt('Return to slot list').'</a></p>');
541: &return_link($r);
542: }
543:
544: sub return_link {
545: my ($r) = @_;
546: $r->print('<p><a href="/adm/flip?postdata=return:">'.
547: &mt('Return to last resource').'</a></p>');
548: }
549:
550: sub get_slot {
551: my ($r,$symb,$conflictable_slot,$inhibit_return_link)=@_;
552:
553: my %slot=&Apache::lonnet::get_slot($env{'form.slotname'});
554: my $slot_name=&check_for_conflict($symb,$env{'form.slotname'},\%slot);
555:
556: if ($slot_name =~ /^error: (.*)/) {
557: $r->print("<p>An error occured while attempting to make a reservation. ($1)</p>");
558: &return_link($r);
559: return 0;
560: }
561: if ($slot_name && $slot_name ne $conflictable_slot) {
562: my %slot=&Apache::lonnet::get_slot($slot_name);
563: my $description1=&get_description($slot_name,\%slot);
564: %slot=&Apache::lonnet::get_slot($env{'form.slotname'});
565: my $description2=&get_description($env{'form.slotname'},\%slot);
566: $r->print("<p>Already have a reservation: $description1</p>");
567: if ($slot_name ne $env{'form.slotname'}) {
568: $r->print(<<STUFF);
569: <form method="post" action="/adm/slotrequest">
570: <input type="hidden" name="symb" value="$env{'form.symb'}" />
571: <input type="hidden" name="slotname" value="$env{'form.slotname'}" />
572: <input type="hidden" name="releaseslot" value="$slot_name" />
573: <input type="hidden" name="command" value="change" />
574: STUFF
575: $r->print("<p>You can either ");
576: $r->print(<<STUFF);
577: <input type="submit" name="change" value="Change" />
578: STUFF
579: $r->print(' your reservation from <b>'.$description1.'</b> to <b>'.
580: $description2.
581: '</b> <br />or </p>');
582: &return_link($r);
583: $r->print(<<STUFF);
584: </form>
585: STUFF
586: } else {
587: &return_link($r);
588: }
589: return 0;
590: }
591:
592: my $reserved=&make_reservation($env{'form.slotname'},
593: \%slot,$symb);
594: my $description=&get_description($env{'form.slotname'},\%slot);
595: if (defined($reserved)) {
596: my $retvalue = 0;
597: if ($slot_name =~ /^error: (.*)/) {
598: $r->print("<p>An error occured while attempting to make a reservation. ($1)</p>");
599: } elsif ($reserved > -1) {
600: $r->print("<p>Success: $description</p>");
601: $retvalue = 1;
602: } elsif ($reserved < 0) {
603: $r->print("<p>Already reserved: $description</p>");
604: }
605: if (!$inhibit_return_link) { &return_link($r); }
606: return 1;
607: }
608:
609: my %lt=('request'=>"Availibility list",
610: 'try' =>'Try again');
611: %lt=&Apache::lonlocal::texthash(%lt);
612:
613: my $extra_input;
614: if ($conflictable_slot) {
615: $extra_input='<input type="hidden" name="releaseslot" value="'.$env{'form.slotname'}.'" />';
616: }
617:
618: $r->print(<<STUFF);
619: <p> <font color="red">Failed</font> to reserve a spot for $description. </p>
620: <p>
621: <form method="post" action="/adm/slotrequest">
622: <input type="submit" name="Try Again" value="$lt{'try'}" />
623: <input type="hidden" name="symb" value="$env{'form.symb'}" />
624: <input type="hidden" name="slotname" value="$env{'form.slotname'}" />
625: <input type="hidden" name="command" value="$env{'form.command'}" />
626: $extra_input
627: </form>
628: ?
629: </p>
630: <p>
631: or
632: <form method="post" action="/adm/slotrequest">
633: <input type="hidden" name="symb" value="$env{'form.symb'}" />
634: <input type="submit" name="requestattempt" value="$lt{'request'}" />
635: </form>
636: </p>
637: or
638: STUFF
639:
640: if (!$inhibit_return_link) { &return_link($r); }
641: return 0;
642: }
643:
644: sub allowed_slot {
645: my ($slot_name,$slot,$symb,$slots,$consumed_uniqueperiods)=@_;
646:
647: #already started
648: if ($slot->{'starttime'} < time) {
649: # all open slot to be schedulable
650: return 0;
651: }
652: &Apache::lonxml::debug("$slot_name starttime good");
653:
654: #already ended
655: if ($slot->{'endtime'} < time) {
656: return 0;
657: }
658: &Apache::lonxml::debug("$slot_name endtime good");
659:
660: # not allowed to pick this one
661: if (defined($slot->{'type'})
662: && $slot->{'type'} ne 'schedulable_student') {
663: return 0;
664: }
665: &Apache::lonxml::debug("$slot_name type good");
666:
667: # reserve time not yet started
668: if ($slot->{'startreserve'} > time) {
669: return 0;
670: }
671: &Apache::lonxml::debug("$slot_name reserve good");
672:
673: my $userallowed=0;
674: # its for a different set of users
675: if (defined($slot->{'allowedsections'})) {
676: if (!defined($env{'request.role.sec'})
677: && grep(/^No section assigned$/,
678: split(',',$slot->{'allowedsections'}))) {
679: $userallowed=1;
680: }
681: if (defined($env{'request.role.sec'})
682: && grep(/^\Q$env{'request.role.sec'}\E$/,
683: split(',',$slot->{'allowedsections'}))) {
684: $userallowed=1;
685: }
686: if (defined($env{'request.course.groups'})) {
687: my @groups = split(/:/,$env{'request.course.groups'});
688: my @allowed_sec = split(',',$slot->{'allowedsections'});
689: foreach my $group (@groups) {
690: if (grep {$_ eq $group} (@allowed_sec)) {
691: $userallowed=1;
692: last;
693: }
694: }
695: }
696: }
697: &Apache::lonxml::debug("$slot_name sections is $userallowed");
698:
699: # its for a different set of users
700: if (defined($slot->{'allowedusers'})
701: && grep(/^\Q$env{'user.name'}:$env{'user.domain'}\E$/,
702: split(',',$slot->{'allowedusers'}))) {
703: $userallowed=1;
704: }
705:
706: if (!defined($slot->{'allowedusers'})
707: && !defined($slot->{'allowedsections'})) {
708: $userallowed=1;
709: }
710:
711: &Apache::lonxml::debug("$slot_name user is $userallowed");
712: return 0 if (!$userallowed);
713:
714: # not allowed for this resource
715: if (defined($slot->{'symb'})
716: && $slot->{'symb'} ne $symb) {
717: return 0;
718: }
719:
720: my $conflict = &check_for_conflict($symb,$slot_name,$slot,$slots,
721: $consumed_uniqueperiods);
722: if ($conflict) {
723: if ($slots->{$conflict}{'starttime'} < time) {
724: return 0;
725: }
726: }
727: &Apache::lonxml::debug("$slot_name symb good");
728: return 1;
729: }
730:
731: sub get_description {
732: my ($slot_name,$slot)=@_;
733: my $description=$slot->{'description'};
734: if (!defined($description)) {
735: $description=&mt('[_1] From [_2] to [_3]',$slot_name,
736: &Apache::lonlocal::locallocaltime($slot->{'starttime'}),
737: &Apache::lonlocal::locallocaltime($slot->{'endtime'}));
738: }
739: return $description;
740: }
741:
742: sub show_choices {
743: my ($r,$symb)=@_;
744:
745: my ($cnum,$cdom)=&get_course();
746: my %slots=&Apache::lonnet::dump('slots',$cdom,$cnum);
747: my $consumed_uniqueperiods = &get_consumed_uniqueperiods(\%slots);
748: my $available;
749: $r->print('<table border="1">');
750: &Apache::lonxml::debug("Checking Slots");
751: my @got_slots=&check_for_reservation($symb,'allslots');
752: foreach my $slot (sort
753: { return $slots{$a}->{'starttime'} <=> $slots{$b}->{'starttime'} }
754: (keys(%slots))) {
755:
756: &Apache::lonxml::debug("Checking Slot $slot");
757: next if (!&allowed_slot($slot,$slots{$slot},undef,\%slots,
758: $consumed_uniqueperiods));
759:
760: $available++;
761:
762: my $description=&get_description($slot,$slots{$slot});
763:
764: my $form=&mt('Unavailable');
765: if ((grep(/^\Q$slot\E$/,@got_slots)) ||
766: &space_available($slot,$slots{$slot},$symb)) {
767: my $text=&mt('Select');
768: my $command='get';
769: if (grep(/^\Q$slot\E$/,@got_slots)) {
770: $text=&mt('Drop Reservation');
771: $command='release';
772: } else {
773: my $conflict = &check_for_conflict($symb,$slot,$slots{$slot},
774: \%slots,
775: $consumed_uniqueperiods);
776: if ($conflict) {
777: $text=&mt('Change Reservation');
778: $command='get';
779: }
780: }
781: my $escsymb=&escape($symb);
782: $form=<<STUFF;
783: <form method="post" action="/adm/slotrequest">
784: <input type="submit" name="Select" value="$text" />
785: <input type="hidden" name="symb" value="$escsymb" />
786: <input type="hidden" name="slotname" value="$slot" />
787: <input type="hidden" name="command" value="$command" />
788: </form>
789: STUFF
790: }
791: $r->print(<<STUFF);
792: <tr>
793: <td>$form</td>
794: <td>$description</td>
795: </tr>
796: STUFF
797: }
798:
799: if (!$available) {
800: $r->print('<tr><td>No available times. <a href="/adm/flip?postdata=return:">'.
801: &mt('Return to last resource').'</a></td></tr>');
802: }
803: $r->print('</table>');
804: }
805:
806: sub to_show {
807: my ($slotname,$slot,$when,$deleted,$name) = @_;
808: my $time=time;
809: my $week=60*60*24*7;
810:
811: if ($deleted eq 'hide' && $slot->{'type'} eq 'deleted') {
812: return 0;
813: }
814:
815: if ($name && $name->{'value'} =~ /\w/) {
816: if ($name->{'type'} eq 'substring') {
817: if ($slotname !~ /\Q$name->{'value'}\E/) {
818: return 0;
819: }
820: }
821: if ($name->{'type'} eq 'exact') {
822: if ($slotname eq $name->{'value'}) {
823: return 0;
824: }
825: }
826: }
827:
828: if ($when eq 'any') {
829: return 1;
830: } elsif ($when eq 'now') {
831: if ($time > $slot->{'starttime'} &&
832: $time < $slot->{'endtime'}) {
833: return 1;
834: }
835: return 0;
836: } elsif ($when eq 'nextweek') {
837: if ( ($time < $slot->{'starttime'} &&
838: ($time+$week) > $slot->{'starttime'})
839: ||
840: ($time < $slot->{'endtime'} &&
841: ($time+$week) > $slot->{'endtime'}) ) {
842: return 1;
843: }
844: return 0;
845: } elsif ($when eq 'lastweek') {
846: if ( ($time > $slot->{'starttime'} &&
847: ($time-$week) < $slot->{'starttime'})
848: ||
849: ($time > $slot->{'endtime'} &&
850: ($time-$week) < $slot->{'endtime'}) ) {
851: return 1;
852: }
853: return 0;
854: } elsif ($when eq 'willopen') {
855: if ($time < $slot->{'starttime'}) {
856: return 1;
857: }
858: return 0;
859: } elsif ($when eq 'wereopen') {
860: if ($time > $slot->{'endtime'}) {
861: return 1;
862: }
863: return 0;
864: }
865:
866: return 1;
867: }
868:
869: sub remove_link {
870: my ($slotname,$entry,$uname,$udom,$symb) = @_;
871:
872: my $remove = &mt('Remove');
873:
874: if ($entry eq 'remove all') {
875: $remove = &mt('Remove All');
876: undef($uname);
877: undef($udom);
878: }
879:
880: $slotname = &escape($slotname);
881: $entry = &escape($entry);
882: $uname = &escape($uname);
883: $udom = &escape($udom);
884: $symb = &escape($symb);
885:
886: return <<"END_LINK";
887: <a href="/adm/slotrequest?command=remove_registration&slotname=$slotname&entry=$entry&uname=$uname&udom=$udom&symb=$symb"
888: >($remove)</a>
889: END_LINK
890:
891: }
892:
893: sub show_table {
894: my ($r,$mgr)=@_;
895:
896: my ($cnum,$cdom)=&get_course();
897: my %slots=&Apache::lonnet::dump('slots',$cdom,$cnum);
898: if ( (keys(%slots))[0] =~ /^error: 2 /) {
899: undef(%slots);
900: }
901: my $available;
902: if ($mgr eq 'F') {
903: # FIXME: This line should be deleted once Slots uses breadcrumbs
904: $r->print(&Apache::loncommon::help_open_topic('Slot About', 'Help on slots'));
905:
906: $r->print('<div>');
907: $r->print('<form method="post" action="/adm/slotrequest">
908: <input type="hidden" name="command" value="uploadstart" />
909: <input type="submit" name="start" value="'.&mt('Upload Slot List').'" />
910: </form>');
911: $r->print(&Apache::loncommon::help_open_topic('Slot CommaDelimited'));
912: $r->print('<form method="post" action="/adm/helper/newslot.helper">
913: <input type="submit" name="newslot" value="'.&mt('Create a New Slot').'" />
914: </form>');
915: $r->print(&Apache::loncommon::help_open_topic('Slot AddInterface'));
916: $r->print('</div>');
917: }
918:
919: my %Saveable_Parameters = ('show' => 'array',
920: 'when' => 'scalar',
921: 'order' => 'scalar',
922: 'deleted' => 'scalar',
923: 'name_filter_type' => 'scalar',
924: 'name_filter_value' => 'scalar',
925: );
926: &Apache::loncommon::store_course_settings('slotrequest',
927: \%Saveable_Parameters);
928: &Apache::loncommon::restore_course_settings('slotrequest',
929: \%Saveable_Parameters);
930: &Apache::grades::init_perm();
931: my ($classlist,$section,$fullname)=&Apache::grades::getclasslist('all');
932: &Apache::grades::reset_perm();
933:
934: # what to display filtering
935: my %show_fields=&Apache::lonlocal::texthash(
936: 'name' => 'Slot Name',
937: 'description' => 'Description',
938: 'type' => 'Type',
939: 'starttime' => 'Start time',
940: 'endtime' => 'End Time',
941: 'startreserve' => 'Time students can start reserving',
942: 'secret' => 'Secret Word',
943: 'space' => '# of students/max',
944: 'ip' => 'IP or DNS restrictions',
945: 'symb' => 'Resource slot is restricted to.',
946: 'allowedsections' => 'Sections slot is restricted to.',
947: 'allowedusers' => 'Users slot is restricted to.',
948: 'uniqueperiod' => 'Period of time slot is unique',
949: 'scheduled' => 'Scheduled Students',
950: 'proctor' => 'List of proctors');
951: my @show_order=('name','description','type','starttime','endtime',
952: 'startreserve','secret','space','ip','symb',
953: 'allowedsections','allowedusers','uniqueperiod',
954: 'scheduled','proctor');
955: my @show =
956: (exists($env{'form.show'})) ? &Apache::loncommon::get_env_multiple('form.show')
957: : keys(%show_fields);
958: my %show = map { $_ => 1 } (@show);
959:
960: #when filtering setup
961: my %when_fields=&Apache::lonlocal::texthash(
962: 'now' => 'Open now',
963: 'nextweek' => 'Open within the next week',
964: 'lastweek' => 'Were open last week',
965: 'willopen' => 'Will open later',
966: 'wereopen' => 'Were open',
967: 'any' => 'Anytime',
968: );
969: my @when_order=('any','now','nextweek','lastweek','willopen','wereopen');
970: $when_fields{'select_form_order'} = \@when_order;
971: my $when = (exists($env{'form.when'})) ? $env{'form.when'}
972: : 'now';
973:
974: #display of students setup
975: my %stu_display_fields=
976: &Apache::lonlocal::texthash('username' => 'User name',
977: 'fullname' => 'Full name',
978: );
979: my @stu_display_order=('fullname','username');
980: my @stu_display =
981: (exists($env{'form.studisplay'})) ? &Apache::loncommon::get_env_multiple('form.studisplay')
982: : keys(%stu_display_fields);
983: my %stu_display = map { $_ => 1 } (@stu_display);
984:
985: #name filtering setup
986: my %name_filter_type_fields=
987: &Apache::lonlocal::texthash('substring' => 'Substring',
988: 'exact' => 'Exact',
989: #'reg' => 'Regular Expression',
990: );
991: my @name_filter_type_order=('substring','exact');
992:
993: $name_filter_type_fields{'select_form_order'} = \@name_filter_type_order;
994: my $name_filter_type =
995: (exists($env{'form.name_filter_type'})) ? $env{'form.name_filter_type'}
996: : 'substring';
997: my $name_filter = {'type' => $name_filter_type,
998: 'value' => $env{'form.name_filter_value'},};
999:
1000:
1001: #deleted slot filtering
1002: #default to hide if no value
1003: $env{'form.deleted'} ||= 'hide';
1004: my $hide_radio =
1005: &Apache::lonhtmlcommon::radio('deleted',$env{'form.deleted'},'hide');
1006: my $show_radio =
1007: &Apache::lonhtmlcommon::radio('deleted',$env{'form.deleted'},'show');
1008:
1009: $r->print('<form method="post" action="/adm/slotrequest">
1010: <input type="hidden" name="command" value="showslots" />');
1011: $r->print('<div>');
1012: $r->print('<table class="inline">
1013: <tr><th>'.&mt('Show').'</th>
1014: <th>'.&mt('Student Display').'</th>
1015: <th>'.&mt('Open').'</th>
1016: <th>'.&mt('Slot Name Filter').'</th>
1017: <th>'.&mt('Options').'</th>
1018: </tr>
1019: <tr><td>'.&Apache::loncommon::multiple_select_form('show',\@show,6,\%show_fields,\@show_order).
1020: '</td>
1021: <td>
1022: '.&Apache::loncommon::multiple_select_form('studisplay',\@stu_display,
1023: 6,\%stu_display_fields,
1024: \@stu_display_order).'
1025: </td>
1026: <td>'.&Apache::loncommon::select_form($when,'when',%when_fields).
1027: '</td>
1028: <td>'.&Apache::loncommon::select_form($name_filter_type,
1029: 'name_filter_type',
1030: %name_filter_type_fields).
1031: '<br />'.
1032: &Apache::lonhtmlcommon::textbox('name_filter_value',
1033: $env{'form.name_filter_value'},
1034: 15).
1035: '</td>
1036: <td>
1037: <table>
1038: <tr>
1039: <td rowspan="2">Deleted slots:</td>
1040: <td><label>'.$show_radio.'Show</label></td>
1041: </tr>
1042: <tr>
1043: <td><label>'.$hide_radio.'Hide</label></td>
1044: </tr>
1045: </table>
1046: </td>
1047: </tr>
1048: </table>');
1049: $r->print('</div>');
1050: $r->print('<p><input type="submit" name="start" value="'.&mt('Update Display').'" /></p>');
1051: my $linkstart='<a href="/adm/slotrequest?command=showslots&order=';
1052: $r->print(&Apache::loncommon::start_data_table().
1053: &Apache::loncommon::start_data_table_header_row().'
1054: <th></th>');
1055: foreach my $which (@show_order) {
1056: if ($which ne 'proctor' && exists($show{$which})) {
1057: $r->print('<th>'.$linkstart.$which.'">'.$show_fields{$which}.'</a></th>');
1058: }
1059: }
1060: $r->print(&Apache::loncommon::end_data_table_header_row());
1061:
1062: my %name_cache;
1063: my $slotsort = sub {
1064: if ($env{'form.order'}=~/^(type|description|endtime|startreserve|ip|symb|allowedsections|allowedusers)$/) {
1065: if (lc($slots{$a}->{$env{'form.order'}})
1066: ne lc($slots{$b}->{$env{'form.order'}})) {
1067: return (lc($slots{$a}->{$env{'form.order'}})
1068: cmp lc($slots{$b}->{$env{'form.order'}}));
1069: }
1070: } elsif ($env{'form.order'} eq 'space') {
1071: if ($slots{$a}{'maxspace'} ne $slots{$b}{'maxspace'}) {
1072: return ($slots{$a}{'maxspace'} cmp $slots{$b}{'maxspace'});
1073: }
1074: } elsif ($env{'form.order'} eq 'name') {
1075: if (lc($a) cmp lc($b)) {
1076: return lc($a) cmp lc($b);
1077: }
1078: } elsif ($env{'form.order'} eq 'uniqueperiod') {
1079:
1080: if ($slots{$a}->{'uniqueperiod'}[0]
1081: ne $slots{$b}->{'uniqueperiod'}[0]) {
1082: return ($slots{$a}->{'uniqueperiod'}[0]
1083: cmp $slots{$b}->{'uniqueperiod'}[0]);
1084: }
1085: if ($slots{$a}->{'uniqueperiod'}[1]
1086: ne $slots{$b}->{'uniqueperiod'}[1]) {
1087: return ($slots{$a}->{'uniqueperiod'}[1]
1088: cmp $slots{$b}->{'uniqueperiod'}[1]);
1089: }
1090: }
1091: return $slots{$a}->{'starttime'} <=> $slots{$b}->{'starttime'};
1092: };
1093:
1094: my %consumed;
1095: if (exists($show{'scheduled'}) || exists($show{'space'}) ) {
1096: %consumed=&Apache::lonnet::dump('slot_reservations',$cdom,$cnum);
1097: my ($tmp)=%consumed;
1098: if ($tmp =~ /^error: /) { undef(%consumed); }
1099: }
1100:
1101: foreach my $slot (sort $slotsort (keys(%slots))) {
1102: if (!&to_show($slot,$slots{$slot},$when,
1103: $env{'form.deleted'},$name_filter)) { next; }
1104: if (defined($slots{$slot}->{'type'})
1105: && $slots{$slot}->{'type'} ne 'schedulable_student') {
1106: #next;
1107: }
1108: my $description=&get_description($slot,$slots{$slot});
1109: my ($id_count,$ids);
1110:
1111: if (exists($show{'scheduled'}) || exists($show{'space'}) ) {
1112: my @this_slot = grep(/^$slot\0/,keys(%consumed));
1113: $id_count = scalar(@this_slot);
1114: if (exists($show{'scheduled'})) {
1115: foreach my $entry (sort { $consumed{$a}{name} cmp
1116: $consumed{$b}{name} }
1117: (keys(%consumed))) {
1118: my (undef,$id)=split("\0",$entry);
1119: my ($uname,$udom) = split(':',$consumed{$entry}{'name'});
1120: $ids.= '<nobr>';
1121: foreach my $item (@stu_display_order) {
1122: if ($stu_display{$item}) {
1123: if ($item eq 'fullname') {
1124: $ids.=$fullname->{"$uname:$udom"}.' ';
1125: } elsif ($item eq 'username') {
1126: $ids.="<tt>$uname:$udom</tt> ";
1127: }
1128: }
1129: }
1130: $ids.=&remove_link($slot,$entry,$uname,$udom,
1131: $consumed{$entry}{'symb'}).'</nobr><br />';
1132: }
1133: }
1134: }
1135:
1136: my $start=($slots{$slot}->{'starttime'}?
1137: &Apache::lonlocal::locallocaltime($slots{$slot}->{'starttime'}):'');
1138: my $end=($slots{$slot}->{'endtime'}?
1139: &Apache::lonlocal::locallocaltime($slots{$slot}->{'endtime'}):'');
1140: my $start_reserve=($slots{$slot}->{'startreserve'}?
1141: &Apache::lonlocal::locallocaltime($slots{$slot}->{'startreserve'}):'');
1142:
1143: my $unique;
1144: if (ref($slots{$slot}{'uniqueperiod'})) {
1145: $unique=localtime($slots{$slot}{'uniqueperiod'}[0]).', '.
1146: localtime($slots{$slot}{'uniqueperiod'}[1]);
1147: }
1148:
1149: my $title;
1150: if (exists($slots{$slot}{'symb'})) {
1151: my (undef,undef,$res)=
1152: &Apache::lonnet::decode_symb($slots{$slot}{'symb'});
1153: $res = &Apache::lonnet::clutter($res);
1154: $title = &Apache::lonnet::gettitle($slots{$slot}{'symb'});
1155: $title='<a href="'.$res.'?symb='.$slots{$slot}{'symb'}.'">'.$title.'</a>';
1156: }
1157:
1158: my $allowedsections;
1159: if (exists($show{'allowedsections'})) {
1160: $allowedsections =
1161: join(', ',sort(split(/\s*,\s*/,
1162: $slots{$slot}->{'allowedsections'})));
1163: }
1164:
1165: my @allowedusers;
1166: if (exists($show{'allowedusers'})) {
1167: @allowedusers= map {
1168: my ($uname,$udom)=split(/:/,$_);
1169: my $fullname=$name_cache{$_};
1170: if (!defined($fullname)) {
1171: $fullname = &Apache::loncommon::plainname($uname,$udom);
1172: $fullname =~s/\s/ /g;
1173: $name_cache{$_} = $fullname;
1174: }
1175: &Apache::loncommon::aboutmewrapper($fullname,$uname,$udom);
1176: } (sort(split(/\s*,\s*/,$slots{$slot}->{'allowedusers'})));
1177: }
1178: my $allowedusers=join(', ',@allowedusers);
1179:
1180: my @proctors;
1181: my $rowspan=1;
1182: my $colspan=1;
1183: if (exists($show{'proctor'})) {
1184: $rowspan=2;
1185: @proctors= map {
1186: my ($uname,$udom)=split(/:/,$_);
1187: my $fullname=$name_cache{$_};
1188: if (!defined($fullname)) {
1189: $fullname = &Apache::loncommon::plainname($uname,$udom);
1190: $fullname =~s/\s/ /g;
1191: $name_cache{$_} = $fullname;
1192: }
1193: &Apache::loncommon::aboutmewrapper($fullname,$uname,$udom);
1194: } (sort(split(/\s*,\s*/,$slots{$slot}->{'proctor'})));
1195: }
1196: my $proctors=join(', ',@proctors);
1197:
1198: my $edit=(<<"EDITLINK");
1199: <a href="/adm/helper/newslot.helper?name=$slot">Edit</a>
1200: EDITLINK
1201:
1202: my $delete=(<<"DELETELINK");
1203: <a href="/adm/slotrequest?command=delete&slotname=$slot">Delete</a>
1204: DELETELINK
1205:
1206: my $remove_all=&remove_link($slot,'remove all').'<br />';
1207:
1208: if ($ids ne '') { undef($delete); }
1209: if ($slots{$slot}{'type'} ne 'schedulable_student'
1210: || $ids eq '') {
1211: undef($remove_all);
1212: }
1213:
1214: my $row_start=&Apache::loncommon::start_data_table_row();
1215: my $row_end=&Apache::loncommon::end_data_table_row();
1216: $r->print($row_start.
1217: "\n<td rowspan=\"$rowspan\">$edit $delete</td>\n");
1218: if (exists($show{'name'})) {
1219: $colspan++;$r->print("<td>$slot</td>");
1220: }
1221: if (exists($show{'description'})) {
1222: $colspan++;$r->print("<td>$description</td>\n");
1223: }
1224: if (exists($show{'type'})) {
1225: $colspan++;$r->print("<td>$slots{$slot}->{'type'}</td>\n");
1226: }
1227: if (exists($show{'starttime'})) {
1228: $colspan++;$r->print("<td>$start</td>\n");
1229: }
1230: if (exists($show{'endtime'})) {
1231: $colspan++;$r->print("<td>$end</td>\n");
1232: }
1233: if (exists($show{'startreserve'})) {
1234: $colspan++;$r->print("<td>$start_reserve</td>\n");
1235: }
1236: if (exists($show{'secret'})) {
1237: $colspan++;$r->print("<td>$slots{$slot}{'secret'}</td>\n");
1238: }
1239: if (exists($show{'space'})) {
1240: my $display = $id_count;
1241: if ($slots{$slot}{'maxspace'}>0) {
1242: $display.='/'.$slots{$slot}{'maxspace'};
1243: if ($slots{$slot}{'maxspace'} <= $id_count) {
1244: $display = '<strong>'.$display.' (full) </strong>';
1245: }
1246: }
1247: $colspan++;$r->print("<td>$display</td>\n");
1248: }
1249: if (exists($show{'ip'})) {
1250: $colspan++;$r->print("<td>$slots{$slot}{'ip'}</td>\n");
1251: }
1252: if (exists($show{'symb'})) {
1253: $colspan++;$r->print("<td>$title</td>\n");
1254: }
1255: if (exists($show{'allowedsections'})) {
1256: $colspan++;$r->print("<td>$allowedsections</td>\n");
1257: }
1258: if (exists($show{'allowedusers'})) {
1259: $colspan++;$r->print("<td>$allowedusers</td>\n");
1260: }
1261: if (exists($show{'uniqueperiod'})) {
1262: $colspan++;$r->print("<td>$unique</td>\n");
1263: }
1264: if (exists($show{'scheduled'})) {
1265: $colspan++;$r->print("<td>$remove_all $ids</td>\n");
1266: }
1267: $r->print("$row_end\n");
1268: if (exists($show{'proctor'})) {
1269: $r->print(<<STUFF);
1270: $row_start
1271: <td colspan="$colspan">$proctors</td>
1272: $row_end
1273: STUFF
1274: }
1275: }
1276: $r->print('</table></form>');
1277: }
1278:
1279: sub upload_start {
1280: my ($r)=@_;
1281: $r->print(&Apache::grades::checkforfile_js());
1282: my $result.='<table width=100% border=0><tr bgcolor="#e6ffff"><td>'."\n";
1283: $result.=' <b>'.
1284: &mt('Specify a file containing the slot definitions.').
1285: '</b></td></tr>'."\n";
1286: $result.='<tr bgcolor=#ffffe6><td>'."\n";
1287: my $upfile_select=&Apache::loncommon::upfile_select_html();
1288: my $ignore=&mt('Ignore First Line');
1289: $result.=<<ENDUPFORM;
1290: <form method="post" enctype="multipart/form-data" action="/adm/slotrequest" name="slotupload">
1291: <input type="hidden" name="command" value="csvuploadmap" />
1292: $upfile_select
1293: <br /><input type="button" onClick="javascript:checkUpload(this.form);" value="Upload Data" />
1294: <label><input type="checkbox" name="noFirstLine" />$ignore</label>
1295: </form>
1296: ENDUPFORM
1297: $result.='</td></tr></table>'."\n";
1298: $result.='</td></tr></table>'."\n";
1299: $r->print($result);
1300: }
1301:
1302: sub csvuploadmap_header {
1303: my ($r,$datatoken,$distotal)= @_;
1304: my $javascript;
1305: if ($env{'form.upfile_associate'} eq 'reverse') {
1306: $javascript=&csvupload_javascript_reverse_associate();
1307: } else {
1308: $javascript=&csvupload_javascript_forward_associate();
1309: }
1310:
1311: my $checked=(($env{'form.noFirstLine'})?' checked="checked"':'');
1312: my $ignore=&mt('Ignore First Line');
1313: my $help_field = &Apache::loncommon::help_open_topic('Slot SelectingField');
1314:
1315: $r->print(<<ENDPICK);
1316: <form method="post" enctype="multipart/form-data" action="/adm/slotrequest" name="slotupload">
1317: <h3>Identify fields $help_field</h3>
1318: Total number of records found in file: $distotal <hr />
1319: Enter as many fields as you can. The system will inform you and bring you back
1320: to this page if the data selected is insufficient to create the slots.<hr />
1321: <input type="button" value="Reverse Association" onClick="javascript:this.form.associate.value='Reverse Association';submit(this.form);" />
1322: <label><input type="checkbox" name="noFirstLine" $checked />$ignore</label>
1323: <input type="hidden" name="associate" value="" />
1324: <input type="hidden" name="datatoken" value="$datatoken" />
1325: <input type="hidden" name="fileupload" value="$env{'form.fileupload'}" />
1326: <input type="hidden" name="upfiletype" value="$env{'form.upfiletype'}" />
1327: <input type="hidden" name="upfile_associate"
1328: value="$env{'form.upfile_associate'}" />
1329: <input type="hidden" name="command" value="csvuploadassign" />
1330: <hr />
1331: <script type="text/javascript" language="Javascript">
1332: $javascript
1333: </script>
1334: ENDPICK
1335: return '';
1336:
1337: }
1338:
1339: sub csvuploadmap_footer {
1340: my ($request,$i,$keyfields) =@_;
1341: $request->print(<<ENDPICK);
1342: </table>
1343: <input type="hidden" name="nfields" value="$i" />
1344: <input type="hidden" name="keyfields" value="$keyfields" />
1345: <input type="button" onClick="javascript:verify(this.form)" value="Create Slots" /><br />
1346: </form>
1347: ENDPICK
1348: }
1349:
1350: sub csvupload_javascript_reverse_associate {
1351: my $error1=&mt('You need to specify the name, starttime, endtime and a type');
1352: return(<<ENDPICK);
1353: function verify(vf) {
1354: var foundstart=0;
1355: var foundend=0;
1356: var foundname=0;
1357: var foundtype=0;
1358: for (i=0;i<=vf.nfields.value;i++) {
1359: tw=eval('vf.f'+i+'.selectedIndex');
1360: if (i==0 && tw!=0) { foundname=1; }
1361: if (i==1 && tw!=0) { foundtype=1; }
1362: if (i==2 && tw!=0) { foundstat=1; }
1363: if (i==3 && tw!=0) { foundend=1; }
1364: }
1365: if (foundstart==0 && foundend==0 && foundtype==0 && foundname==0) {
1366: alert('$error1');
1367: return;
1368: }
1369: vf.submit();
1370: }
1371: function flip(vf,tf) {
1372: }
1373: ENDPICK
1374: }
1375:
1376: sub csvupload_javascript_forward_associate {
1377: my $error1=&mt('You need to specify the name, starttime, endtime and a type');
1378: return(<<ENDPICK);
1379: function verify(vf) {
1380: var foundstart=0;
1381: var foundend=0;
1382: var foundname=0;
1383: var foundtype=0;
1384: for (i=0;i<=vf.nfields.value;i++) {
1385: tw=eval('vf.f'+i+'.selectedIndex');
1386: if (tw==1) { foundname=1; }
1387: if (tw==2) { foundtype=1; }
1388: if (tw==3) { foundstat=1; }
1389: if (tw==4) { foundend=1; }
1390: }
1391: if (foundstart==0 && foundend==0 && foundtype==0 && foundname==0) {
1392: alert('$error1');
1393: return;
1394: }
1395: vf.submit();
1396: }
1397: function flip(vf,tf) {
1398: }
1399: ENDPICK
1400: }
1401:
1402: sub csv_upload_map {
1403: my ($r)= @_;
1404:
1405: my $datatoken;
1406: if (!$env{'form.datatoken'}) {
1407: $datatoken=&Apache::loncommon::upfile_store($r);
1408: } else {
1409: $datatoken=$env{'form.datatoken'};
1410: &Apache::loncommon::load_tmp_file($r);
1411: }
1412: my @records=&Apache::loncommon::upfile_record_sep();
1413: if ($env{'form.noFirstLine'}) { shift(@records); }
1414: &csvuploadmap_header($r,$datatoken,$#records+1);
1415: my ($i,$keyfields);
1416: if (@records) {
1417: my @fields=&csvupload_fields();
1418:
1419: if ($env{'form.upfile_associate'} eq 'reverse') {
1420: &Apache::loncommon::csv_print_samples($r,\@records);
1421: $i=&Apache::loncommon::csv_print_select_table($r,\@records,
1422: \@fields);
1423: foreach (@fields) { $keyfields.=$_->[0].','; }
1424: chop($keyfields);
1425: } else {
1426: unshift(@fields,['none','']);
1427: $i=&Apache::loncommon::csv_samples_select_table($r,\@records,
1428: \@fields);
1429: my %sone=&Apache::loncommon::record_sep($records[0]);
1430: $keyfields=join(',',sort(keys(%sone)));
1431: }
1432: }
1433: &csvuploadmap_footer($r,$i,$keyfields);
1434:
1435: return '';
1436: }
1437:
1438: sub csvupload_fields {
1439: return (['name','Slot name'],
1440: ['type','Type of slot'],
1441: ['starttime','Start Time of slot'],
1442: ['endtime','End Time of slot'],
1443: ['startreserve','Reservation Start Time'],
1444: ['ip','IP or DNS restriction'],
1445: ['proctor','List of proctor ids'],
1446: ['description','Slot Description'],
1447: ['maxspace','Maximum number of reservations'],
1448: ['symb','Resource Restriction'],
1449: ['uniqueperiod','Date range of slot exclusion'],
1450: ['secret','Secret word proctor uses to validate'],
1451: ['allowedsections','Sections slot is restricted to'],
1452: ['allowedusers','Users slot is restricted to'],
1453: );
1454: }
1455:
1456: sub csv_upload_assign {
1457: my ($r,$mgr)= @_;
1458: &Apache::loncommon::load_tmp_file($r);
1459: my @slotdata = &Apache::loncommon::upfile_record_sep();
1460: if ($env{'form.noFirstLine'}) { shift(@slotdata); }
1461: my %fields=&Apache::grades::get_fields();
1462: $r->print('<h3>Creating Slots</h3>');
1463: my $cname=$env{'course.'.$env{'request.course.id'}.'.num'};
1464: my $cdom=$env{'course.'.$env{'request.course.id'}.'.domain'};
1465: my $countdone=0;
1466: my @errors;
1467: foreach my $slot (@slotdata) {
1468: my %slot;
1469: my %entries=&Apache::loncommon::record_sep($slot);
1470: my $domain;
1471: my $name=$entries{$fields{'name'}};
1472: if ($name=~/^\s*$/) {
1473: push(@errors,"Did not create slot with no name");
1474: next;
1475: }
1476: if ($name=~/\s/) {
1477: push(@errors,"$name not created -- Name must not contain spaces");
1478: next;
1479: }
1480: if ($name=~/\W/) {
1481: push(@errors,"$name not created -- Name must contain only letters, numbers and _");
1482: next;
1483: }
1484: if ($entries{$fields{'type'}}) {
1485: $slot{'type'}=$entries{$fields{'type'}};
1486: } else {
1487: $slot{'type'}='preassigned';
1488: }
1489: if ($slot{'type'} ne 'preassigned' &&
1490: $slot{'type'} ne 'schedulable_student') {
1491: push(@errors,"$name not created -- invalid type ($slot{'type'}) must be either preassigned or schedulable_student");
1492: next;
1493: }
1494: if ($entries{$fields{'starttime'}}) {
1495: $slot{'starttime'}=&UnixDate($entries{$fields{'starttime'}},"%s");
1496: }
1497: if ($entries{$fields{'endtime'}}) {
1498: $slot{'endtime'}=&UnixDate($entries{$fields{'endtime'}},"%s");
1499: }
1500:
1501: # start/endtime must be defined and greater than zero
1502: if (!$slot{'starttime'}) {
1503: push(@errors,"$name not created -- Invalid start time");
1504: next;
1505: }
1506: if (!$slot{'endtime'}) {
1507: push(@errors,"$name not created -- Invalid end time");
1508: next;
1509: }
1510: if ($slot{'starttime'} > $slot{'endtime'}) {
1511: push(@errors,"$name not created -- Slot starts after it ends");
1512: next;
1513: }
1514:
1515: if ($entries{$fields{'startreserve'}}) {
1516: $slot{'startreserve'}=
1517: &UnixDate($entries{$fields{'startreserve'}},"%s");
1518: }
1519: if (defined($slot{'startreserve'})
1520: && $slot{'startreserve'} > $slot{'starttime'}) {
1521: push(@errors,"$name not created -- Slot's reservation start time is after the slot's start time.");
1522: next;
1523: }
1524:
1525: foreach my $key ('ip','proctor','description','maxspace',
1526: 'secret','symb') {
1527: if ($entries{$fields{$key}}) {
1528: $slot{$key}=$entries{$fields{$key}};
1529: }
1530: }
1531:
1532: if ($entries{$fields{'uniqueperiod'}}) {
1533: my ($start,$end)=split(',',$entries{$fields{'uniqueperiod'}});
1534: my @times=(&UnixDate($start,"%s"),
1535: &UnixDate($end,"%s"));
1536: $slot{'uniqueperiod'}=\@times;
1537: }
1538: if (defined($slot{'uniqueperiod'})
1539: && $slot{'uniqueperiod'}[0] > $slot{'uniqueperiod'}[1]) {
1540: push(@errors,"$name not created -- Slot's unique period start time is later than the unique period's end time.");
1541: next;
1542: }
1543:
1544: &Apache::lonnet::cput('slots',{$name=>\%slot},$cdom,$cname);
1545: $r->print('.');
1546: $r->rflush();
1547: $countdone++;
1548: }
1549: $r->print("<p>Created $countdone slots\n</p>");
1550: foreach my $error (@errors) {
1551: $r->print("<p>$error\n</p>");
1552: }
1553: &show_table($r,$mgr);
1554: return '';
1555: }
1556:
1557: sub handler {
1558: my $r=shift;
1559:
1560: &Apache::loncommon::content_type($r,'text/html');
1561: &Apache::loncommon::no_cache($r);
1562: if ($r->header_only()) {
1563: $r->send_http_header();
1564: return OK;
1565: }
1566:
1567: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'});
1568:
1569: my $vgr=&Apache::lonnet::allowed('vgr',$env{'request.course.id'});
1570: my $mgr=&Apache::lonnet::allowed('mgr',$env{'request.course.id'});
1571: my $title='Requesting Another Worktime';
1572: if ($env{'form.command'} =~ /^(showslots|uploadstart|csvuploadmap|csvuploadassign)$/ && $vgr eq 'F') {
1573: $title = 'Managing Slots';
1574: }
1575: &start_page($r,$title);
1576:
1577: if ($env{'form.command'} eq 'showslots' && $vgr eq 'F') {
1578: &show_table($r,$mgr);
1579: } elsif ($env{'form.command'} eq 'remove_registration' && $mgr eq 'F') {
1580: &remove_registration($r);
1581: } elsif ($env{'form.command'} eq 'release' && $mgr eq 'F') {
1582: if ($env{'form.entry'} eq 'remove all') {
1583: &release_all_slot($r,$mgr);
1584: } else {
1585: &release_slot($r,undef,undef,undef,$mgr);
1586: }
1587: } elsif ($env{'form.command'} eq 'delete' && $mgr eq 'F') {
1588: &delete_slot($r);
1589: } elsif ($env{'form.command'} eq 'uploadstart' && $mgr eq 'F') {
1590: &upload_start($r);
1591: } elsif ($env{'form.command'} eq 'csvuploadmap' && $mgr eq 'F') {
1592: &csv_upload_map($r);
1593: } elsif ($env{'form.command'} eq 'csvuploadassign' && $mgr eq 'F') {
1594: if ($env{'form.associate'} ne 'Reverse Association') {
1595: &csv_upload_assign($r,$mgr);
1596: } else {
1597: if ( $env{'form.upfile_associate'} ne 'reverse' ) {
1598: $env{'form.upfile_associate'} = 'reverse';
1599: } else {
1600: $env{'form.upfile_associate'} = 'forward';
1601: }
1602: &csv_upload_map($r);
1603: }
1604: } else {
1605: my $symb=&unescape($env{'form.symb'});
1606: if (!defined($symb)) {
1607: &fail($r,'not_valid');
1608: return OK;
1609: }
1610: my (undef,undef,$res)=&Apache::lonnet::decode_symb($symb);
1611: my $useslots = &Apache::lonnet::EXT("resource.0.useslots",$symb);
1612: if ($useslots ne 'resource'
1613: && $useslots ne 'map'
1614: && $useslots ne 'map_map') {
1615: &fail($r,'not_available');
1616: return OK;
1617: }
1618: $env{'request.symb'}=$symb;
1619: my $type = ($res =~ /\.task$/) ? 'Task'
1620: : 'problem';
1621: my ($status) = &Apache::lonhomework::check_slot_access('0',$type);
1622: if ($status eq 'CAN_ANSWER' ||
1623: $status eq 'NEEDS_CHECKIN' ||
1624: $status eq 'WAITING_FOR_GRADE') {
1625: &fail($r,'not_allowed');
1626: return OK;
1627: }
1628: if ($env{'form.requestattempt'}) {
1629: &show_choices($r,$symb);
1630: } elsif ($env{'form.command'} eq 'release') {
1631: &release_slot($r,$symb);
1632: } elsif ($env{'form.command'} eq 'get') {
1633: &get_slot($r,$symb);
1634: } elsif ($env{'form.command'} eq 'change') {
1635: if (&get_slot($r,$symb,$env{'form.releaseslot'},1)) {
1636: &release_slot($r,$symb,$env{'form.releaseslot'});
1637: }
1638: } else {
1639: $r->print("<p>Unknown command: ".$env{'form.command'}."</p>");
1640: }
1641: }
1642: &end_page($r);
1643: return OK;
1644: }
1645:
1646: 1;
1647: __END__
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