1: # The LearningOnline Network with CAPA
2: # Handler for requesting to have slots added to a students record
3: #
4: # $Id: slotrequest.pm,v 1.57 2006/04/10 07:37:16 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:
40: sub fail {
41: my ($r,$code)=@_;
42: if ($code eq 'not_valid') {
43: $r->print('<p>'.&mt('Unable to understand what resource you wanted to sign up for.').'</p>');
44:
45: } elsif ($code eq 'not_allowed') {
46: $r->print('<p>'.&mt('Not allowed to sign up or change reservations at this time.').'</p>');
47: } else {
48: $r->print('<p>'.&mt('Failed.').'</p>');
49: }
50:
51: &return_link($r);
52: &end_page($r);
53: }
54:
55: sub start_page {
56: my ($r,$title)=@_;
57: $r->print(&Apache::loncommon::start_page($title));
58: }
59:
60: sub end_page {
61: my ($r)=@_;
62: $r->print(&Apache::loncommon::end_page());
63: }
64:
65: =pod
66:
67: slot_reservations db
68: - keys are
69: - slotname\0id -> value is an hashref of
70: name -> user@domain of holder
71: timestamp -> timestamp of reservation
72: symb -> symb of resource that it is reserved for
73:
74: =cut
75:
76: sub get_course {
77: (undef,my $courseid)=&Apache::lonxml::whichuser();
78: my $cdom=$env{'course.'.$courseid.'.domain'};
79: my $cnum=$env{'course.'.$courseid.'.num'};
80: return ($cnum,$cdom);
81: }
82:
83: sub get_reservation_ids {
84: my ($slot_name)=@_;
85:
86: my ($cnum,$cdom)=&get_course();
87:
88: my %consumed=&Apache::lonnet::dump('slot_reservations',$cdom,$cnum,
89: "^$slot_name\0");
90: if (&network_error(%consumed)) {
91: return 'error: Unable to determine current status';
92: }
93: my ($tmp)=%consumed;
94: if ($tmp=~/^error: 2 / ) {
95: return 0;
96: }
97: return keys(%consumed);
98: }
99:
100: sub space_available {
101: my ($slot_name,$slot)=@_;
102: my $max=$slot->{'maxspace'};
103:
104: if (!defined($max)) { return 1; }
105:
106: my $consumed=scalar(&get_reservation_ids($slot_name));
107: if ($consumed < $max) {
108: return 1
109: }
110: return 0;
111: }
112:
113: sub check_for_reservation {
114: my ($symb,$mode)=@_;
115: my $student = &Apache::lonnet::EXT("resource.0.availablestudent", $symb,
116: $env{'user.domain'}, $env{'user.name'});
117:
118: my $course = &Apache::lonnet::EXT("resource.0.available", $symb,
119: $env{'user.domain'}, $env{'user.name'});
120: my @slots = (split(/:/,$student), split(/:/, $course));
121:
122: &Apache::lonxml::debug(" slot list is ".join(':',@slots));
123:
124: my ($cnum,$cdom)=&get_course();
125: my %slots=&Apache::lonnet::get('slots', [@slots], $cdom, $cnum);
126:
127: if (&network_error($student) || &network_error($course) ||
128: &network_error(%slots)) {
129: return 'error: Unable to determine current status';
130: }
131: my @got;
132: foreach my $slot_name (sort {
133: if (ref($slots{$a}) && ref($slots{$b})) {
134: return $slots{$a}{'starttime'} <=> $slots{$b}{'starttime'}
135: }
136: if (ref($slots{$a})) { return -1;}
137: if (ref($slots{$b})) { return 1;}
138: return 0;
139: } @slots) {
140: next if (!defined($slots{$slot_name}) ||
141: !ref($slots{$slot_name}));
142: &Apache::lonxml::debug(time." $slot_name ".
143: $slots{$slot_name}->{'starttime'}." -- ".
144: $slots{$slot_name}->{'startreserve'});
145: if ($slots{$slot_name}->{'endtime'} > time &&
146: $slots{$slot_name}->{'startreserve'} < time) {
147: # between start of reservation times and end of slot
148: if ($mode eq 'allslots') {
149: push(@got,$slot_name);
150: } else {
151: return($slot_name, $slots{$slot_name});
152: }
153: }
154: }
155: if ($mode eq 'allslots' && @got) {
156: return @got;
157: }
158: return (undef,undef);
159: }
160:
161: sub get_consumed_uniqueperiods {
162: my ($slots) = @_;
163: my $navmap=Apache::lonnavmaps::navmap->new;
164: my @problems = $navmap->retrieveResources(undef,
165: sub { $_[0]->is_problem() },1,0);
166: my %used_slots;
167: foreach my $problem (@problems) {
168: my $symb = $problem->symb();
169: my $student = &Apache::lonnet::EXT("resource.0.availablestudent",
170: $symb, $env{'user.domain'},
171: $env{'user.name'});
172: my $course = &Apache::lonnet::EXT("resource.0.available",
173: $symb, $env{'user.domain'},
174: $env{'user.name'});
175: if (&network_error($student) || &network_error($course)) {
176: return 'error: Unable to determine current status';
177: }
178: foreach my $slot (split(/:/,$student), split(/:/, $course)) {
179: $used_slots{$slot}=1;
180: }
181: }
182:
183: if (!ref($slots)) {
184: my ($cnum,$cdom)=&get_course();
185: my %slots=&Apache::lonnet::get('slots', [keys(%used_slots)], $cdom, $cnum);
186: if (&network_error(%slots)) {
187: return 'error: Unable to determine current status';
188: }
189: $slots = \%slots;
190: }
191:
192: my %consumed_uniqueperiods;
193: foreach my $slot_name (keys(%used_slots)) {
194: next if (!defined($slots->{$slot_name}) ||
195: !ref($slots->{$slot_name}));
196:
197: next if (!defined($slots->{$slot_name}{'uniqueperiod'}) ||
198: !ref($slots->{$slot_name}{'uniqueperiod'}));
199: $consumed_uniqueperiods{$slot_name} =
200: $slots->{$slot_name}{'uniqueperiod'};
201: }
202: return \%consumed_uniqueperiods;
203: }
204:
205: sub check_for_conflict {
206: my ($symb,$new_slot_name,$new_slot,$slots,$consumed_uniqueperiods)=@_;
207:
208: if (!defined($new_slot->{'uniqueperiod'})) { return undef; }
209:
210: if (!ref($consumed_uniqueperiods)) {
211: $consumed_uniqueperiods = &get_consumed_uniqueperiods($slots);
212: if (&network_error(%$consumed_uniqueperiods)) {
213: return 'error: Unable to determine current status';
214: }
215: }
216:
217: my ($new_uniq_start,$new_uniq_end) = @{$new_slot->{'uniqueperiod'}};
218: foreach my $slot_name (keys(%$consumed_uniqueperiods)) {
219: my ($start,$end)=@{$consumed_uniqueperiods->{$slot_name}};
220: if (!
221: ($start < $new_uniq_start && $end < $new_uniq_start) ||
222: ($start > $new_uniq_end && $end > $new_uniq_end )) {
223: return $slot_name;
224: }
225: }
226: return undef;
227:
228: }
229:
230: sub network_error {
231: my ($result) = @_;
232: if ($result =~ /^(con_lost|no_such_host|error: [^2])/) {
233: return 1;
234: }
235: return 0;
236: }
237:
238: sub make_reservation {
239: my ($slot_name,$slot,$symb)=@_;
240:
241: my ($cnum,$cdom)=&get_course();
242:
243: my $value=&Apache::lonnet::EXT("resource.0.availablestudent",$symb,
244: $env{'user.domain'},$env{'user.name'});
245: &Apache::lonxml::debug("value is $value<br />");
246: if (&network_error($value)) {
247: return 'error: Unable to determine current status';
248: }
249:
250: foreach my $other_slot (split(/:/, $value)) {
251: if ($other_slot eq $slot_name) {
252: my %consumed=&Apache::lonnet::dump('slot_reservations', $cdom,
253: $cnum, "^$slot_name\0");
254: if (&network_error($value)) {
255: return 'error: Unable to determine current status';
256: }
257: my $me=$env{'user.name'}.':'.$env{'user.domain'};
258: foreach my $key (keys(%consumed)) {
259: if ($consumed{$key}->{'name'} eq $me) {
260: my $num=(split('\0',$key))[1];
261: return -$num;
262: }
263: }
264: }
265: }
266:
267: my $max=$slot->{'maxspace'};
268: if (!defined($max)) { $max=99999; }
269:
270: my (@ids)=&get_reservation_ids($slot_name);
271: if (&network_error(@ids)) {
272: return 'error: Unable to determine current status';
273: }
274: my $last=0;
275: foreach my $id (@ids) {
276: my $num=(split('\0',$id))[1];
277: if ($num > $last) { $last=$num; }
278: }
279:
280: my $wanted=$last+1;
281: &Apache::lonxml::debug("wanted $wanted<br />");
282: if (scalar(@ids) >= $max) {
283: # full up
284: return undef;
285: }
286:
287: my %reservation=('name' => $env{'user.name'}.':'.$env{'user.domain'},
288: 'timestamp' => time,
289: 'symb' => $symb);
290:
291: my $success=&Apache::lonnet::newput('slot_reservations',
292: {"$slot_name\0$wanted" =>
293: \%reservation},
294: $cdom, $cnum);
295:
296: if ($success eq 'ok') {
297: my $new_value=$slot_name;
298: if ($value) {
299: $new_value=$value.':'.$new_value;
300: }
301: my $result=&Apache::lonparmset::storeparm_by_symb($symb,
302: '0_availablestudent',
303: 1, $new_value, 'string',
304: $env{'user.name'},
305: $env{'user.domain'});
306: &Apache::lonxml::debug("hrrm $result");
307: return $wanted;
308: }
309:
310: # someone else got it
311: return undef;
312: }
313:
314: sub remove_registration {
315: my ($r) = @_;
316: if ($env{'form.entry'} ne 'remove all') {
317: return &remove_registration_user($r);
318: }
319: my $slot_name = $env{'form.slotname'};
320: my %slot=&Apache::lonnet::get_slot($slot_name);
321:
322: my ($cnum,$cdom)=&get_course();
323: my %consumed=&Apache::lonnet::dump('slot_reservations',$cdom,$cnum,
324: "^$slot_name\0");
325: if (&network_error(%consumed)) {
326: $r->print("<p>".&mt('A network error has occured.').'</p>');
327: return;
328: }
329: if (!%consumed) {
330: $r->print("<p>".&mt('Slot <tt>[_1]</tt> has no reservations.',
331: $slot_name)."</p>");
332: return;
333: }
334:
335: my @names = map { $consumed{$_}{'name'} } (sort(keys(%consumed)));
336: my $names = join(' ',@names);
337:
338: my $msg = &mt('Remove all of [_1] from slot [_2]?',$names,$slot_name);
339: &remove_registration_confirmation($r,$msg,['entry','slotname']);
340: }
341:
342: sub remove_registration_user {
343: my ($r) = @_;
344:
345: my $slot_name = $env{'form.slotname'};
346:
347: my $name = &Apache::loncommon::plainname($env{'form.uname'},
348: $env{'form.udom'});
349:
350: my $title = &Apache::lonnet::gettitle($env{'form.symb'});
351:
352: my $msg = &mt('Remove [_1] from slot [_2] for [_3]',
353: $name,$slot_name,$title);
354:
355: &remove_registration_confirmation($r,$msg,['uname','udom','slotname',
356: 'entry','symb']);
357: }
358:
359: sub remove_registration_confirmation {
360: my ($r,$msg,$inputs) =@_;
361:
362: my $hidden_input;
363: foreach my $parm (@{$inputs}) {
364: $hidden_input .=
365: '<input type="hidden" name="'.$parm.'" value="'
366: .&HTML::Entities::encode($env{'form.'.$parm},'"<>&\'').'" />'."\n";
367: }
368: my %lt = &Apache::lonlocal::texthash('yes' => 'Yes',
369: 'no' => 'No',);
370: $r->print(<<"END_CONFIRM");
371: <p> $msg </p>
372: <form action="/adm/slotrequest" method="POST">
373: <input type="hidden" name="command" value="release" />
374: <input type="hidden" name="button" value="yes" />
375: $hidden_input
376: <input type="submit" value="$lt{'yes'}" />
377: </form>
378: <form action="/adm/slotrequest" method="POST">
379: <input type="hidden" name="command" value="showslots" />
380: <input type="submit" value="$lt{'no'}" />
381: </form>
382: END_CONFIRM
383:
384: }
385:
386: sub release_all_slot {
387: my ($r,$mgr)=@_;
388:
389: my $slot_name = $env{'form.slotname'};
390:
391: my ($cnum,$cdom)=&get_course();
392:
393: my %consumed=&Apache::lonnet::dump('slot_reservations',$cdom,$cnum,
394: "^$slot_name\0");
395:
396: $r->print('<p>'.&mt('Releasing reservations').'</p>');
397:
398: foreach my $entry (sort { $consumed{$a}{'name'} cmp
399: $consumed{$b}{'name'} } (keys(%consumed))) {
400: my ($uname,$udom) = split(':',$consumed{$entry}{'name'});
401: my ($result,$msg) =
402: &release_reservation($slot_name,$uname,$udom,
403: $consumed{$entry}{'symb'},$mgr);
404: $r->print("<p>$msg</p>");
405: $r->rflush();
406: }
407: $r->print('<p><a href="/adm/slotrequest?command=showslots">'.
408: &mt('Return to slot list').'</a></p>');
409: &return_link($r);
410: }
411:
412: sub release_slot {
413: my ($r,$symb,$slot_name,$inhibit_return_link,$mgr)=@_;
414:
415: if ($slot_name eq '') { $slot_name=$env{'form.slotname'}; }
416:
417: my ($uname,$udom) = ($env{'user.name'}, $env{'user.domain'});
418: if ($mgr eq 'F'
419: && defined($env{'form.uname'}) && defined($env{'form.udom'})) {
420: ($uname,$udom) = ($env{'form.uname'}, $env{'form.udom'});
421: }
422:
423: if ($mgr eq 'F'
424: && defined($env{'form.symb'})) {
425: $symb = $env{'form.symb'};
426: }
427:
428: my ($result,$msg) =
429: &release_reservation($slot_name,$uname,$udom,$symb,$mgr);
430: $r->print("<p>$msg</p>");
431:
432: if ($mgr eq 'F') {
433: $r->print('<p><a href="/adm/slotrequest?command=showslots">'.
434: &mt('Return to slot list').'</a></p>');
435: }
436:
437: if (!$inhibit_return_link) { &return_link($r); }
438: return $result;
439: }
440:
441: sub release_reservation {
442: my ($slot_name,$uname,$udom,$symb,$mgr) = @_;
443: my %slot=&Apache::lonnet::get_slot($slot_name);
444: my $description=&get_description($slot_name,\%slot);
445:
446: if ($mgr ne 'F') {
447: if ($slot{'starttime'} < time) {
448: return (0,&mt('Not allowed to release Reservation: [_1], as it has already ended.',$description));
449: }
450: }
451: # get parameter string, check for existance, rebuild string with the slot
452: my @slots = split(/:/,&Apache::lonnet::EXT("resource.0.availablestudent",
453: $symb,$udom,$uname));
454:
455: my @new_slots;
456: foreach my $exist_slot (@slots) {
457: if ($exist_slot eq $slot_name) { next; }
458: push(@new_slots,$exist_slot);
459: }
460: my $new_param = join(':',@new_slots);
461:
462: my ($cnum,$cdom)=&get_course();
463:
464: # get slot reservations, check if user has one, if so remove reservation
465: my %consumed=&Apache::lonnet::dump('slot_reservations',$cdom,$cnum,
466: "^$slot_name\0");
467: foreach my $entry (keys(%consumed)) {
468: if ( $consumed{$entry}->{'name'} eq ($uname.':'.$udom) ) {
469: &Apache::lonnet::del('slot_reservations',[$entry],
470: $cdom,$cnum);
471: }
472: }
473:
474: # store new parameter string
475: my $result=&Apache::lonparmset::storeparm_by_symb($symb,
476: '0_availablestudent',
477: 1, $new_param, 'string',
478: $uname,$udom);
479:
480: my $msg;
481: if ($mgr eq 'F') {
482: $msg = &mt('Released Reservation for user: [_1]',"$uname:$udom");
483: } else {
484: $msg = &mt('Released Reservation: [_1]',$description);
485: }
486: return (1,$msg);
487: }
488:
489: sub delete_slot {
490: my ($r)=@_;
491:
492: my $slot_name = $env{'form.slotname'};
493: my %slot=&Apache::lonnet::get_slot($slot_name);
494:
495: my ($cnum,$cdom)=&get_course();
496: my %consumed=&Apache::lonnet::dump('slot_reservations',$cdom,$cnum,
497: "^$slot_name\0");
498: my ($tmp) = %consumed;
499: if ($tmp =~ /error: 2/) { undef(%consumed); }
500:
501: if (%slot && !%consumed) {
502: $slot{'type'} = 'deleted';
503: my $ret = &Apache::lonnet::cput('slots', {$slot_name => \%slot},
504: $cdom, $cnum);
505: if ($ret eq 'ok') {
506: $r->print("<p>Slot <tt>$slot_name</tt> marked as deleted.</p>");
507: } else {
508: $r->print("<p> An error ($ret) occurse when attempting to delete Slot <tt>$slot_name</tt>.</p>");
509: }
510: } else {
511: if (%consumed) {
512: $r->print("<p>Slot <tt>$slot_name</tt> has active reservations.</p>");
513: } else {
514: $r->print("<p>Slot <tt>$slot_name</tt> does not exist.</p>");
515: }
516: }
517: $r->print('<p><a href="/adm/slotrequest?command=showslots">'.
518: &mt('Return to slot list').'</a></p>');
519: &return_link($r);
520: }
521:
522: sub return_link {
523: my ($r) = @_;
524: $r->print('<p><a href="/adm/flip?postdata=return:">'.
525: &mt('Return to last resource').'</a></p>');
526: }
527:
528: sub get_slot {
529: my ($r,$symb)=@_;
530:
531: my %slot=&Apache::lonnet::get_slot($env{'form.slotname'});
532: my $slot_name=&check_for_conflict($symb,$env{'form.slotname'},\%slot);
533:
534: if ($slot_name =~ /^error: (.*)/) {
535: $r->print("<p>An error occured while attempting to make a reservation. ($1)</p>");
536: &return_link($r);
537: return;
538: }
539: if ($slot_name) {
540: my %slot=&Apache::lonnet::get_slot($slot_name);
541: my $description1=&get_description($slot_name,\%slot);
542: %slot=&Apache::lonnet::get_slot($env{'form.slotname'});
543: my $description2=&get_description($env{'form.slotname'},\%slot);
544: $r->print("<p>Already have a reservation: $description1</p>");
545: if ($slot_name ne $env{'form.slotname'}) {
546: $r->print(<<STUFF);
547: <form method="POST" action="/adm/slotrequest">
548: <input type="hidden" name="symb" value="$env{'form.symb'}" />
549: <input type="hidden" name="slotname" value="$env{'form.slotname'}" />
550: <input type="hidden" name="releaseslot" value="$slot_name" />
551: <input type="hidden" name="command" value="change" />
552: STUFF
553: $r->print("<p>You can either ");
554: $r->print(<<STUFF);
555: <input type="submit" name="change" value="Change" />
556: STUFF
557: $r->print(' your reservation from <b>'.$description1.'</b> to <b>'.
558: $description2.
559: '</b> <br />or </p>');
560: &return_link($r);
561: $r->print(<<STUFF);
562: </form>
563: STUFF
564: } else {
565: &return_link($r);
566: }
567: return;
568: }
569:
570: my $reserved=&make_reservation($env{'form.slotname'},
571: \%slot,$symb);
572: my $description=&get_description($env{'form.slotname'},\%slot);
573: if (defined($reserved)) {
574: if ($slot_name =~ /^error: (.*)/) {
575: $r->print("<p>An error occured while attempting to make a reservation. ($1)</p>");
576: } elsif ($reserved > -1) {
577: $r->print("<p>Success: $description</p>");
578: } elsif ($reserved < 0) {
579: $r->print("<p>Already reserved: $description</p>");
580: }
581: &return_link($r);
582: return;
583: }
584:
585: my %lt=('request'=>"Availibility list",
586: 'try' =>'Try again');
587: %lt=&Apache::lonlocal::texthash(%lt);
588:
589: $r->print(<<STUFF);
590: <p> <font color="red">Failed</font> to reserve a spot for $description. </p>
591: <p>
592: <form method="POST" action="/adm/slotrequest">
593: <input type="submit" name="Try Again" value="$lt{'try'}" />
594: <input type="hidden" name="symb" value="$env{'form.symb'}" />
595: <input type="hidden" name="slotname" value="$env{'form.slotname'}" />
596: <input type="hidden" name="command" value="get" />
597: </form>
598: ?
599: </p>
600: <p>
601: or
602: <form method="POST" action="/adm/slotrequest">
603: <input type="hidden" name="symb" value="$env{'form.symb'}" />
604: <input type="submit" name="requestattempt" value="$lt{'request'}" />
605: </form>
606: </p>
607: or
608: STUFF
609:
610: &return_link($r);
611: return;
612: }
613:
614: sub allowed_slot {
615: my ($slot_name,$slot,$symb,$slots,$consumed_uniqueperiods)=@_;
616:
617: #already started
618: if ($slot->{'starttime'} < time) {
619: # all open slot to be schedulable
620: #return 0;
621: }
622: &Apache::lonxml::debug("$slot_name starttime good");
623:
624: #already ended
625: if ($slot->{'endtime'} < time) {
626: return 0;
627: }
628: &Apache::lonxml::debug("$slot_name endtime good");
629:
630: # not allowed to pick this one
631: if (defined($slot->{'type'})
632: && $slot->{'type'} ne 'schedulable_student') {
633: return 0;
634: }
635: &Apache::lonxml::debug("$slot_name type good");
636:
637: # reserve time not yet started
638: if ($slot->{'startreserve'} > time) {
639: return 0;
640: }
641: &Apache::lonxml::debug("$slot_name reserve good");
642:
643: my $userallowed=0;
644: # its for a different set of users
645: if (defined($slot->{'allowedsections'})) {
646: if (!defined($env{'request.role.sec'})
647: && grep(/^No section assigned$/,
648: split(',',$slot->{'allowedsections'}))) {
649: $userallowed=1;
650: }
651: if (defined($env{'request.role.sec'})
652: && grep(/^\Q$env{'request.role.sec'}\E$/,
653: split(',',$slot->{'allowedsections'}))) {
654: $userallowed=1;
655: }
656: }
657: &Apache::lonxml::debug("$slot_name sections is $userallowed");
658:
659: # its for a different set of users
660: if (defined($slot->{'allowedusers'})
661: && grep(/^\Q$env{'user.name'}:$env{'user.domain'}\E$/,
662: split(',',$slot->{'allowedusers'}))) {
663: $userallowed=1;
664: }
665:
666: if (!defined($slot->{'allowedusers'})
667: && !defined($slot->{'allowedsections'})) {
668: $userallowed=1;
669: }
670:
671: &Apache::lonxml::debug("$slot_name user is $userallowed");
672: return 0 if (!$userallowed);
673:
674: # not allowed for this resource
675: if (defined($slot->{'symb'})
676: && $slot->{'symb'} ne $symb) {
677: return 0;
678: }
679:
680: my $conflict = &check_for_conflict($symb,$slot_name,$slot,$slots,
681: $consumed_uniqueperiods);
682: if ($conflict) {
683: if ($slots->{$conflict}{'starttime'} < time) {
684: return 0;
685: }
686: }
687: &Apache::lonxml::debug("$slot_name symb good");
688: return 1;
689: }
690:
691: sub get_description {
692: my ($slot_name,$slot)=@_;
693: my $description=$slot->{'description'};
694: if (!defined($description)) {
695: $description=&mt('[_1] From [_2] to [_3]',$slot_name,
696: &Apache::lonlocal::locallocaltime($slot->{'starttime'}),
697: &Apache::lonlocal::locallocaltime($slot->{'endtime'}));
698: }
699: return $description;
700: }
701:
702: sub show_choices {
703: my ($r,$symb)=@_;
704:
705: my ($cnum,$cdom)=&get_course();
706: my %slots=&Apache::lonnet::dump('slots',$cdom,$cnum);
707: my $consumed_uniqueperiods = &get_consumed_uniqueperiods(\%slots);
708: my $available;
709: $r->print('<table border="1">');
710: &Apache::lonxml::debug("Checking Slots");
711: my @got_slots=&check_for_reservation($symb,'allslots');
712: foreach my $slot (sort
713: { return $slots{$a}->{'starttime'} <=> $slots{$b}->{'starttime'} }
714: (keys(%slots))) {
715:
716: &Apache::lonxml::debug("Checking Slot $slot");
717: next if (!&allowed_slot($slot,$slots{$slot},undef,\%slots,
718: $consumed_uniqueperiods));
719:
720: $available++;
721:
722: my $description=&get_description($slot,$slots{$slot});
723:
724: my $form=&mt('Unavailable');
725: if ((grep(/^\Q$slot\E$/,@got_slots)) ||
726: &space_available($slot,$slots{$slot},$symb)) {
727: my $text=&mt('Select');
728: my $command='get';
729: if (grep(/^\Q$slot\E$/,@got_slots)) {
730: $text=&mt('Free Reservation');
731: $command='release';
732: } else {
733: my $conflict = &check_for_conflict($symb,$slot,$slots{$slot},
734: \%slots,
735: $consumed_uniqueperiods);
736: if ($conflict) {
737: $text=&mt('Change Reservation');
738: $command='get';
739: }
740: }
741: my $escsymb=&Apache::lonnet::escape($symb);
742: $form=<<STUFF;
743: <form method="POST" action="/adm/slotrequest">
744: <input type="submit" name="Select" value="$text" />
745: <input type="hidden" name="symb" value="$escsymb" />
746: <input type="hidden" name="slotname" value="$slot" />
747: <input type="hidden" name="command" value="$command" />
748: </form>
749: STUFF
750: }
751: $r->print(<<STUFF);
752: <tr>
753: <td>$form</td>
754: <td>$description</td>
755: </tr>
756: STUFF
757: }
758:
759: if (!$available) {
760: $r->print('<tr><td>No available times. <a href="/adm/flip?postdata=return:">'.
761: &mt('Return to last resource').'</a></td></tr>');
762: }
763: $r->print('</table>');
764: }
765:
766: sub to_show {
767: my ($slotname,$slot,$when,$deleted,$name) = @_;
768: my $time=time;
769: my $week=60*60*24*7;
770:
771: if ($deleted eq 'hide' && $slot->{'type'} eq 'deleted') {
772: return 0;
773: }
774:
775: if ($name && $name->{'value'} =~ /\w/) {
776: if ($name->{'type'} eq 'substring') {
777: if ($slotname !~ /\Q$name->{'value'}\E/) {
778: return 0;
779: }
780: }
781: if ($name->{'type'} eq 'exact') {
782: if ($slotname eq $name->{'value'}) {
783: return 0;
784: }
785: }
786: }
787:
788: if ($when eq 'any') {
789: return 1;
790: } elsif ($when eq 'now') {
791: if ($time > $slot->{'starttime'} &&
792: $time < $slot->{'endtime'}) {
793: return 1;
794: }
795: return 0;
796: } elsif ($when eq 'nextweek') {
797: if ( ($time < $slot->{'starttime'} &&
798: ($time+$week) > $slot->{'starttime'})
799: ||
800: ($time < $slot->{'endtime'} &&
801: ($time+$week) > $slot->{'endtime'}) ) {
802: return 1;
803: }
804: return 0;
805: } elsif ($when eq 'lastweek') {
806: if ( ($time > $slot->{'starttime'} &&
807: ($time-$week) < $slot->{'starttime'})
808: ||
809: ($time > $slot->{'endtime'} &&
810: ($time-$week) < $slot->{'endtime'}) ) {
811: return 1;
812: }
813: return 0;
814: } elsif ($when eq 'willopen') {
815: if ($time < $slot->{'starttime'}) {
816: return 1;
817: }
818: return 0;
819: } elsif ($when eq 'wereopen') {
820: if ($time > $slot->{'endtime'}) {
821: return 1;
822: }
823: return 0;
824: }
825:
826: return 1;
827: }
828:
829: sub remove_link {
830: my ($slotname,$entry,$uname,$udom,$symb) = @_;
831:
832: my $remove = &mt('Remove');
833:
834: if ($entry eq 'remove all') {
835: $remove = &mt('Remove All');
836: undef($uname);
837: undef($udom);
838: }
839:
840: $slotname = &Apache::lonnet::escape($slotname);
841: $entry = &Apache::lonnet::escape($entry);
842: $uname = &Apache::lonnet::escape($uname);
843: $udom = &Apache::lonnet::escape($udom);
844: $symb = &Apache::lonnet::escape($symb);
845:
846: return <<"END_LINK";
847: <a href="/adm/slotrequest?command=remove_registration&slotname=$slotname&entry=$entry&uname=$uname&udom=$udom&symb=$symb"
848: >($remove)</a>
849: END_LINK
850:
851: }
852:
853: sub show_table {
854: my ($r,$mgr)=@_;
855:
856: my ($cnum,$cdom)=&get_course();
857: my %slots=&Apache::lonnet::dump('slots',$cdom,$cnum);
858: if ( (keys(%slots))[0] =~ /^error: 2 /) {
859: undef(%slots);
860: }
861: my $available;
862: if ($mgr eq 'F') {
863: $r->print('<div>');
864: $r->print('<form method="POST" action="/adm/slotrequest">
865: <input type="hidden" name="command" value="uploadstart" />
866: <input type="submit" name="start" value="'.&mt('Upload Slot List').'" />
867: </form>');
868: $r->print('<form method="POST" action="/adm/helper/newslot.helper">
869: <input type="submit" name="newslot" value="'.&mt('Create a New Slot').'" />
870: </form>');
871: $r->print('</div>');
872: }
873:
874: my %Saveable_Parameters = ('show' => 'array',
875: 'when' => 'scalar',
876: 'order' => 'scalar',
877: 'deleted' => 'scalar',
878: 'name_filter_type' => 'scalar',
879: 'name_filter_value' => 'scalar',
880: );
881: &Apache::loncommon::store_course_settings('slotrequest',
882: \%Saveable_Parameters);
883: &Apache::loncommon::restore_course_settings('slotrequest',
884: \%Saveable_Parameters);
885: &Apache::grades::init_perm();
886: my ($classlist,$section,$fullname)=&Apache::grades::getclasslist('all');
887: &Apache::grades::reset_perm();
888:
889: # what to display filtering
890: my %show_fields=&Apache::lonlocal::texthash(
891: 'name' => 'Slot Name',
892: 'description' => 'Description',
893: 'type' => 'Type',
894: 'starttime' => 'Start time',
895: 'endtime' => 'End Time',
896: 'startreserve' => 'Time students can start reserving',
897: 'secret' => 'Secret Word',
898: 'maxspace' => 'Maximum # of students',
899: 'ip' => 'IP or DNS restrictions',
900: 'symb' => 'Resource slot is restricted to.',
901: 'allowedsections' => 'Sections slot is restricted to.',
902: 'allowedusers' => 'Users slot is restricted to.',
903: 'uniqueperiod' => 'Period of time slot is unique',
904: 'scheduled' => 'Scheduled Students',
905: 'proctor' => 'List of proctors');
906: my @show_order=('name','description','type','starttime','endtime',
907: 'startreserve','secret','maxspace','ip','symb',
908: 'allowedsections','allowedusers','uniqueperiod',
909: 'scheduled','proctor');
910: my @show =
911: (exists($env{'form.show'})) ? &Apache::loncommon::get_env_multiple('form.show')
912: : keys(%show_fields);
913: my %show = map { $_ => 1 } (@show);
914:
915: #when filtering setup
916: my %when_fields=&Apache::lonlocal::texthash(
917: 'now' => 'Open now',
918: 'nextweek' => 'Open within the next week',
919: 'lastweek' => 'Were open last week',
920: 'willopen' => 'Will open later',
921: 'wereopen' => 'Were open',
922: 'any' => 'Anytime',
923: );
924: my @when_order=('any','now','nextweek','lastweek','willopen','wereopen');
925: $when_fields{'select_form_order'} = \@when_order;
926: my $when = (exists($env{'form.when'})) ? $env{'form.when'}
927: : 'now';
928:
929: #display of students setup
930: my %stu_display_fields=
931: &Apache::lonlocal::texthash('username' => 'User name',
932: 'fullname' => 'Full name',
933: );
934: my @stu_display_order=('fullname','username');
935: my @stu_display =
936: (exists($env{'form.studisplay'})) ? &Apache::loncommon::get_env_multiple('form.studisplay')
937: : keys(%stu_display_fields);
938: my %stu_display = map { $_ => 1 } (@stu_display);
939:
940: #name filtering setup
941: my %name_filter_type_fields=
942: &Apache::lonlocal::texthash('substring' => 'Substring',
943: 'exact' => 'Exact',
944: #'reg' => 'Regular Expression',
945: );
946: my @name_filter_type_order=('substring','exact');
947:
948: $name_filter_type_fields{'select_form_order'} = \@name_filter_type_order;
949: my $name_filter_type =
950: (exists($env{'form.name_filter_type'})) ? $env{'form.name_filter_type'}
951: : 'substring';
952: my $name_filter = {'type' => $name_filter_type,
953: 'value' => $env{'form.name_filter_value'},};
954:
955: #deleted slot filtering
956: my $hide_radio =
957: &Apache::lonhtmlcommon::radio('deleted',$env{'form.deleted'},'hide');
958: my $show_radio =
959: &Apache::lonhtmlcommon::radio('deleted',$env{'form.deleted'},'show');
960:
961: $r->print('<form method="POST" action="/adm/slotrequest">
962: <input type="hidden" name="command" value="showslots" />');
963: $r->print('<div>');
964: $r->print('<table class="inline">
965: <tr><th>'.&mt('Show').'</th>
966: <th>'.&mt('Student Display').'</th>
967: <th>'.&mt('Open').'</th>
968: <th>'.&mt('Slot Name Filter').'</th>
969: <th>'.&mt('Options').'</th>
970: </tr>
971: <tr><td>'.&Apache::loncommon::multiple_select_form('show',\@show,6,\%show_fields,\@show_order).
972: '</td>
973: <td>
974: '.&Apache::loncommon::multiple_select_form('studisplay',\@stu_display,
975: 6,\%stu_display_fields,
976: \@stu_display_order).'
977: </td>
978: <td>'.&Apache::loncommon::select_form($when,'when',%when_fields).
979: '</td>
980: <td>'.&Apache::loncommon::select_form($name_filter_type,
981: 'name_filter_type',
982: %name_filter_type_fields).
983: '<br />'.
984: &Apache::lonhtmlcommon::textbox('name_filter_value',
985: $env{'form.name_filter_value'},
986: 15).
987: '</td>
988: <td>
989: <table>
990: <tr>
991: <td rowspan="2">Deleted slots:</td>
992: <td><label>'.$show_radio.'Show</label></td>
993: </tr>
994: <tr>
995: <td><label>'.$hide_radio.'Hide</label></td>
996: </tr>
997: </table>
998: </td>
999: </tr>
1000: </table>');
1001: $r->print('</div>');
1002: $r->print('<p><input type="submit" name="start" value="'.&mt('Update Display').'" /></p>');
1003: my $linkstart='<a href="/adm/slotrequest?command=showslots&order=';
1004: $r->print('<table class="thinborder">
1005: <tr>
1006: <th></th>');
1007: foreach my $which (@show_order) {
1008: if ($which ne 'proctor' && exists($show{$which})) {
1009: $r->print('<th>'.$linkstart.$which.'">'.$show_fields{$which}.'</a></th>');
1010: }
1011: }
1012:
1013: my %name_cache;
1014: my $slotsort = sub {
1015: if ($env{'form.order'}=~/^(type|description|endtime|startreserve|maxspace|ip|symb|allowedsections|allowedusers)$/) {
1016: if (lc($slots{$a}->{$env{'form.order'}})
1017: ne lc($slots{$b}->{$env{'form.order'}})) {
1018: return (lc($slots{$a}->{$env{'form.order'}})
1019: cmp lc($slots{$b}->{$env{'form.order'}}));
1020: }
1021: } elsif ($env{'form.order'} eq 'name') {
1022: if (lc($a) cmp lc($b)) {
1023: return lc($a) cmp lc($b);
1024: }
1025: } elsif ($env{'form.order'} eq 'uniqueperiod') {
1026:
1027: if ($slots{$a}->{'uniqueperiod'}[0]
1028: ne $slots{$b}->{'uniqueperiod'}[0]) {
1029: return ($slots{$a}->{'uniqueperiod'}[0]
1030: cmp $slots{$b}->{'uniqueperiod'}[0]);
1031: }
1032: if ($slots{$a}->{'uniqueperiod'}[1]
1033: ne $slots{$b}->{'uniqueperiod'}[1]) {
1034: return ($slots{$a}->{'uniqueperiod'}[1]
1035: cmp $slots{$b}->{'uniqueperiod'}[1]);
1036: }
1037: }
1038: return $slots{$a}->{'starttime'} <=> $slots{$b}->{'starttime'};
1039: };
1040: foreach my $slot (sort $slotsort (keys(%slots))) {
1041: if (!&to_show($slot,$slots{$slot},$when,
1042: $env{'form.deleted'},$name_filter)) { next; }
1043: if (defined($slots{$slot}->{'type'})
1044: && $slots{$slot}->{'type'} ne 'schedulable_student') {
1045: #next;
1046: }
1047: my $description=&get_description($slot,$slots{$slot});
1048: my $ids;
1049: if (exists($show{'scheduled'})) {
1050: my %consumed=&Apache::lonnet::dump('slot_reservations',$cdom,$cnum,
1051: "^$slot\0");
1052: my ($tmp)=%consumed;
1053: if ($tmp !~ /^error: /) {
1054: foreach my $entry (sort { $consumed{$a}{name} cmp
1055: $consumed{$b}{name} }
1056: (keys(%consumed))) {
1057: my (undef,$id)=split("\0",$entry);
1058: my ($uname,$udom) = split(':',$consumed{$entry}{'name'});
1059: $ids.= '<nobr>';
1060: foreach my $item (@stu_display_order) {
1061: if ($stu_display{$item}) {
1062: if ($item eq 'fullname') {
1063: $ids.=$fullname->{"$uname:$udom"}.' ';
1064: } elsif ($item eq 'username') {
1065: $ids.="<tt>$uname:$udom</tt> ";
1066: }
1067: }
1068: }
1069: $ids.=&remove_link($slot,$entry,$uname,$udom,
1070: $consumed{$entry}{'symb'}).'</nobr><br />';
1071: }
1072: }
1073: }
1074:
1075: my $start=($slots{$slot}->{'starttime'}?
1076: &Apache::lonlocal::locallocaltime($slots{$slot}->{'starttime'}):'');
1077: my $end=($slots{$slot}->{'endtime'}?
1078: &Apache::lonlocal::locallocaltime($slots{$slot}->{'endtime'}):'');
1079: my $start_reserve=($slots{$slot}->{'startreserve'}?
1080: &Apache::lonlocal::locallocaltime($slots{$slot}->{'startreserve'}):'');
1081:
1082: my $unique;
1083: if (ref($slots{$slot}{'uniqueperiod'})) {
1084: $unique=localtime($slots{$slot}{'uniqueperiod'}[0]).','.
1085: localtime($slots{$slot}{'uniqueperiod'}[1]);
1086: }
1087:
1088: my $title;
1089: if (exists($slots{$slot}{'symb'})) {
1090: my (undef,undef,$res)=
1091: &Apache::lonnet::decode_symb($slots{$slot}{'symb'});
1092: $res = &Apache::lonnet::clutter($res);
1093: $title = &Apache::lonnet::gettitle($slots{$slot}{'symb'});
1094: $title='<a href="'.$res.'?symb='.$slots{$slot}{'symb'}.'">'.$title.'</a>';
1095: }
1096:
1097: my $allowedsections;
1098: if (exists($show{'allowedsections'})) {
1099: $allowedsections =
1100: join(', ',sort(split(/\s*,\s*/,
1101: $slots{$slot}->{'allowedsections'})));
1102: }
1103:
1104: my @allowedusers;
1105: if (exists($show{'allowedusers'})) {
1106: @allowedusers= map {
1107: my ($uname,$udom)=split(/:/,$_);
1108: my $fullname=$name_cache{$_};
1109: if (!defined($fullname)) {
1110: $fullname = &Apache::loncommon::plainname($uname,$udom);
1111: $fullname =~s/\s/ /g;
1112: $name_cache{$_} = $fullname;
1113: }
1114: &Apache::loncommon::aboutmewrapper($fullname,$uname,$udom);
1115: } (sort(split(/\s*,\s*/,$slots{$slot}->{'allowedusers'})));
1116: }
1117: my $allowedusers=join(', ',@allowedusers);
1118:
1119: my @proctors;
1120: my $rowspan=1;
1121: my $colspan=1;
1122: if (exists($show{'proctor'})) {
1123: $rowspan=2;
1124: @proctors= map {
1125: my ($uname,$udom)=split(/@/,$_);
1126: my $fullname=$name_cache{$_};
1127: if (!defined($fullname)) {
1128: $fullname = &Apache::loncommon::plainname($uname,$udom);
1129: $fullname =~s/\s/ /g;
1130: $name_cache{$_} = $fullname;
1131: }
1132: &Apache::loncommon::aboutmewrapper($fullname,$uname,$udom);
1133: } (sort(split(/\s*,\s*/,$slots{$slot}->{'proctor'})));
1134: }
1135: my $proctors=join(', ',@proctors);
1136:
1137: my $edit=(<<"EDITLINK");
1138: <a href="/adm/helper/newslot.helper?name=$slot">Edit</a>
1139: EDITLINK
1140:
1141: my $delete=(<<"DELETELINK");
1142: <a href="/adm/slotrequest?command=delete&slotname=$slot">Delete</a>
1143: DELETELINK
1144:
1145: my $remove_all=&remove_link($slot,'remove all').'<br />';
1146:
1147: if ($ids ne '') { undef($delete); }
1148: if ($slots{$slot}{'type'} ne 'schedulable_student'
1149: || $ids eq '') {
1150: undef($remove_all);
1151: }
1152:
1153: $r->print("<tr>\n<td rowspan=\"$rowspan\">$edit $delete</td>\n");
1154: if (exists($show{'name'})) {
1155: $colspan++;$r->print("<td>$slot</td>");
1156: }
1157: if (exists($show{'description'})) {
1158: $colspan++;$r->print("<td>$description</td>\n");
1159: }
1160: if (exists($show{'type'})) {
1161: $colspan++;$r->print("<td>$slots{$slot}->{'type'}</td>\n");
1162: }
1163: if (exists($show{'starttime'})) {
1164: $colspan++;$r->print("<td>$start</td>\n");
1165: }
1166: if (exists($show{'endtime'})) {
1167: $colspan++;$r->print("<td>$end</td>\n");
1168: }
1169: if (exists($show{'startreserve'})) {
1170: $colspan++;$r->print("<td>$start_reserve</td>\n");
1171: }
1172: if (exists($show{'secret'})) {
1173: $colspan++;$r->print("<td>$slots{$slot}{'secret'}</td>\n");
1174: }
1175: if (exists($show{'maxspace'})) {
1176: $colspan++;$r->print("<td>$slots{$slot}{'maxspace'}</td>\n");
1177: }
1178: if (exists($show{'ip'})) {
1179: $colspan++;$r->print("<td>$slots{$slot}{'ip'}</td>\n");
1180: }
1181: if (exists($show{'symb'})) {
1182: $colspan++;$r->print("<td>$title</td>\n");
1183: }
1184: if (exists($show{'allowedsections'})) {
1185: $colspan++;$r->print("<td>$allowedsections</td>\n");
1186: }
1187: if (exists($show{'allowedusers'})) {
1188: $colspan++;$r->print("<td>$allowedusers</td>\n");
1189: }
1190: if (exists($show{'scheduled'})) {
1191: $colspan++;$r->print("<td>$remove_all $ids</td>\n</tr>\n");
1192: }
1193: if (exists($show{'proctor'})) {
1194: $r->print(<<STUFF);
1195: <tr>
1196: <td colspan="$colspan">$proctors</td>
1197: </tr>
1198: STUFF
1199: }
1200: }
1201: $r->print('</table>');
1202: }
1203:
1204: sub upload_start {
1205: my ($r)=@_;
1206: $r->print(&Apache::grades::checkforfile_js());
1207: my $result.='<table width=100% border=0><tr bgcolor="#e6ffff"><td>'."\n";
1208: $result.=' <b>'.
1209: &mt('Specify a file containing the slot definitions.').
1210: '</b></td></tr>'."\n";
1211: $result.='<tr bgcolor=#ffffe6><td>'."\n";
1212: my $upfile_select=&Apache::loncommon::upfile_select_html();
1213: my $ignore=&mt('Ignore First Line');
1214: $result.=<<ENDUPFORM;
1215: <form method="post" enctype="multipart/form-data" action="/adm/slotrequest" name="slotupload">
1216: <input type="hidden" name="command" value="csvuploadmap" />
1217: $upfile_select
1218: <br /><input type="button" onClick="javascript:checkUpload(this.form);" value="Upload Data" />
1219: <label><input type="checkbox" name="noFirstLine" />$ignore</label>
1220: </form>
1221: ENDUPFORM
1222: $result.='</td></tr></table>'."\n";
1223: $result.='</td></tr></table>'."\n";
1224: $r->print($result);
1225: }
1226:
1227: sub csvuploadmap_header {
1228: my ($r,$datatoken,$distotal)= @_;
1229: my $javascript;
1230: if ($env{'form.upfile_associate'} eq 'reverse') {
1231: $javascript=&csvupload_javascript_reverse_associate();
1232: } else {
1233: $javascript=&csvupload_javascript_forward_associate();
1234: }
1235:
1236: my $checked=(($env{'form.noFirstLine'})?' checked="checked"':'');
1237: my $ignore=&mt('Ignore First Line');
1238: $r->print(<<ENDPICK);
1239: <form method="post" enctype="multipart/form-data" action="/adm/slotrequest" name="slotupload">
1240: <h3>Identify fields</h3>
1241: Total number of records found in file: $distotal <hr />
1242: Enter as many fields as you can. The system will inform you and bring you back
1243: to this page if the data selected is insufficient to create the slots.<hr />
1244: <input type="button" value="Reverse Association" onClick="javascript:this.form.associate.value='Reverse Association';submit(this.form);" />
1245: <label><input type="checkbox" name="noFirstLine" $checked />$ignore</label>
1246: <input type="hidden" name="associate" value="" />
1247: <input type="hidden" name="datatoken" value="$datatoken" />
1248: <input type="hidden" name="fileupload" value="$env{'form.fileupload'}" />
1249: <input type="hidden" name="upfiletype" value="$env{'form.upfiletype'}" />
1250: <input type="hidden" name="upfile_associate"
1251: value="$env{'form.upfile_associate'}" />
1252: <input type="hidden" name="command" value="csvuploadassign" />
1253: <hr />
1254: <script type="text/javascript" language="Javascript">
1255: $javascript
1256: </script>
1257: ENDPICK
1258: return '';
1259:
1260: }
1261:
1262: sub csvuploadmap_footer {
1263: my ($request,$i,$keyfields) =@_;
1264: $request->print(<<ENDPICK);
1265: </table>
1266: <input type="hidden" name="nfields" value="$i" />
1267: <input type="hidden" name="keyfields" value="$keyfields" />
1268: <input type="button" onClick="javascript:verify(this.form)" value="Create Slots" /><br />
1269: </form>
1270: ENDPICK
1271: }
1272:
1273: sub csvupload_javascript_reverse_associate {
1274: my $error1=&mt('You need to specify the name, starttime, endtime and a type');
1275: return(<<ENDPICK);
1276: function verify(vf) {
1277: var foundstart=0;
1278: var foundend=0;
1279: var foundname=0;
1280: var foundtype=0;
1281: for (i=0;i<=vf.nfields.value;i++) {
1282: tw=eval('vf.f'+i+'.selectedIndex');
1283: if (i==0 && tw!=0) { foundname=1; }
1284: if (i==1 && tw!=0) { foundtype=1; }
1285: if (i==2 && tw!=0) { foundstat=1; }
1286: if (i==3 && tw!=0) { foundend=1; }
1287: }
1288: if (foundstart==0 && foundend==0 && foundtype==0 && foundname==0) {
1289: alert('$error1');
1290: return;
1291: }
1292: vf.submit();
1293: }
1294: function flip(vf,tf) {
1295: }
1296: ENDPICK
1297: }
1298:
1299: sub csvupload_javascript_forward_associate {
1300: my $error1=&mt('You need to specify the name, starttime, endtime and a type');
1301: return(<<ENDPICK);
1302: function verify(vf) {
1303: var foundstart=0;
1304: var foundend=0;
1305: var foundname=0;
1306: var foundtype=0;
1307: for (i=0;i<=vf.nfields.value;i++) {
1308: tw=eval('vf.f'+i+'.selectedIndex');
1309: if (tw==1) { foundname=1; }
1310: if (tw==2) { foundtype=1; }
1311: if (tw==3) { foundstat=1; }
1312: if (tw==4) { foundend=1; }
1313: }
1314: if (foundstart==0 && foundend==0 && foundtype==0 && foundname==0) {
1315: alert('$error1');
1316: return;
1317: }
1318: vf.submit();
1319: }
1320: function flip(vf,tf) {
1321: }
1322: ENDPICK
1323: }
1324:
1325: sub csv_upload_map {
1326: my ($r)= @_;
1327:
1328: my $datatoken;
1329: if (!$env{'form.datatoken'}) {
1330: $datatoken=&Apache::loncommon::upfile_store($r);
1331: } else {
1332: $datatoken=$env{'form.datatoken'};
1333: &Apache::loncommon::load_tmp_file($r);
1334: }
1335: my @records=&Apache::loncommon::upfile_record_sep();
1336: if ($env{'form.noFirstLine'}) { shift(@records); }
1337: &csvuploadmap_header($r,$datatoken,$#records+1);
1338: my ($i,$keyfields);
1339: if (@records) {
1340: my @fields=&csvupload_fields();
1341:
1342: if ($env{'form.upfile_associate'} eq 'reverse') {
1343: &Apache::loncommon::csv_print_samples($r,\@records);
1344: $i=&Apache::loncommon::csv_print_select_table($r,\@records,
1345: \@fields);
1346: foreach (@fields) { $keyfields.=$_->[0].','; }
1347: chop($keyfields);
1348: } else {
1349: unshift(@fields,['none','']);
1350: $i=&Apache::loncommon::csv_samples_select_table($r,\@records,
1351: \@fields);
1352: my %sone=&Apache::loncommon::record_sep($records[0]);
1353: $keyfields=join(',',sort(keys(%sone)));
1354: }
1355: }
1356: &csvuploadmap_footer($r,$i,$keyfields);
1357:
1358: return '';
1359: }
1360:
1361: sub csvupload_fields {
1362: return (['name','Slot name'],
1363: ['type','Type of slot'],
1364: ['starttime','Start Time of slot'],
1365: ['endtime','End Time of slot'],
1366: ['startreserve','Reservation Start Time'],
1367: ['ip','IP or DNS restriction'],
1368: ['proctor','List of proctor ids'],
1369: ['description','Slot Description'],
1370: ['maxspace','Maximum number of reservations'],
1371: ['symb','Resource Restriction'],
1372: ['uniqueperiod','Date range of slot exclusion'],
1373: ['secret','Secret word proctor uses to validate'],
1374: ['allowedsections','Sections slot is restricted to'],
1375: ['allowedusers','Users slot is restricted to'],
1376: );
1377: }
1378:
1379: sub csv_upload_assign {
1380: my ($r,$mgr)= @_;
1381: &Apache::loncommon::load_tmp_file($r);
1382: my @slotdata = &Apache::loncommon::upfile_record_sep();
1383: if ($env{'form.noFirstLine'}) { shift(@slotdata); }
1384: my %fields=&Apache::grades::get_fields();
1385: $r->print('<h3>Creating Slots</h3>');
1386: my $cname=$env{'course.'.$env{'request.course.id'}.'.num'};
1387: my $cdom=$env{'course.'.$env{'request.course.id'}.'.domain'};
1388: my $countdone=0;
1389: my @errors;
1390: foreach my $slot (@slotdata) {
1391: my %slot;
1392: my %entries=&Apache::loncommon::record_sep($slot);
1393: my $domain;
1394: my $name=$entries{$fields{'name'}};
1395: if ($name=~/^\s*$/) {
1396: push(@errors,"Did not create slot with no name");
1397: next;
1398: }
1399: if ($name=~/\s/) {
1400: push(@errors,"$name not created -- Name must not contain spaces");
1401: next;
1402: }
1403: if ($name=~/\W/) {
1404: push(@errors,"$name not created -- Name must contain only letters, numbers and _");
1405: next;
1406: }
1407: if ($entries{$fields{'type'}}) {
1408: $slot{'type'}=$entries{$fields{'type'}};
1409: } else {
1410: $slot{'type'}='preassigned';
1411: }
1412: if ($slot{'type'} ne 'preassigned' &&
1413: $slot{'type'} ne 'schedulable_student') {
1414: push(@errors,"$name not created -- invalid type ($slot{'type'}) must be either preassigned or schedulable_student");
1415: next;
1416: }
1417: if ($entries{$fields{'starttime'}}) {
1418: $slot{'starttime'}=&UnixDate($entries{$fields{'starttime'}},"%s");
1419: }
1420: if ($entries{$fields{'endtime'}}) {
1421: $slot{'endtime'}=&UnixDate($entries{$fields{'endtime'}},"%s");
1422: }
1423: if ($entries{$fields{'startreserve'}}) {
1424: $slot{'startreserve'}=
1425: &UnixDate($entries{$fields{'startreserve'}},"%s");
1426: }
1427: foreach my $key ('ip','proctor','description','maxspace',
1428: 'secret','symb') {
1429: if ($entries{$fields{$key}}) {
1430: $slot{$key}=$entries{$fields{$key}};
1431: }
1432: }
1433: if ($entries{$fields{'uniqueperiod'}}) {
1434: my ($start,$end)=split(',',$entries{$fields{'uniqueperiod'}});
1435: my @times=(&UnixDate($start,"%s"),
1436: &UnixDate($end,"%s"));
1437: $slot{'uniqueperiod'}=\@times;
1438: }
1439:
1440: &Apache::lonnet::cput('slots',{$name=>\%slot},$cdom,$cname);
1441: $r->print('.');
1442: $r->rflush();
1443: $countdone++;
1444: }
1445: $r->print("<p>Created $countdone slots\n</p>");
1446: foreach my $error (@errors) {
1447: $r->print("<p>$error\n</p>");
1448: }
1449: &show_table($r,$mgr);
1450: return '';
1451: }
1452:
1453: sub handler {
1454: my $r=shift;
1455:
1456: &Apache::loncommon::content_type($r,'text/html');
1457: &Apache::loncommon::no_cache($r);
1458: if ($r->header_only()) {
1459: $r->send_http_header();
1460: return OK;
1461: }
1462:
1463: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'});
1464:
1465: my $vgr=&Apache::lonnet::allowed('vgr',$env{'request.course.id'});
1466: my $mgr=&Apache::lonnet::allowed('mgr',$env{'request.course.id'});
1467: my $title='Requesting Another Worktime';
1468: if ($env{'form.command'} =~ /^(showslots|uploadstart|csvuploadmap|csvuploadassign)$/ && $vgr eq 'F') {
1469: $title = 'Managing Slots';
1470: }
1471: &start_page($r,$title);
1472:
1473: if ($env{'form.command'} eq 'showslots' && $vgr eq 'F') {
1474: &show_table($r,$mgr);
1475: } elsif ($env{'form.command'} eq 'remove_registration' && $mgr eq 'F') {
1476: &remove_registration($r);
1477: } elsif ($env{'form.command'} eq 'release' && $mgr eq 'F') {
1478: if ($env{'form.entry'} eq 'remove all') {
1479: &release_all_slot($r,$mgr);
1480: } else {
1481: &release_slot($r,undef,undef,undef,$mgr);
1482: }
1483: } elsif ($env{'form.command'} eq 'delete' && $mgr eq 'F') {
1484: &delete_slot($r);
1485: } elsif ($env{'form.command'} eq 'uploadstart' && $mgr eq 'F') {
1486: &upload_start($r);
1487: } elsif ($env{'form.command'} eq 'csvuploadmap' && $mgr eq 'F') {
1488: &csv_upload_map($r);
1489: } elsif ($env{'form.command'} eq 'csvuploadassign' && $mgr eq 'F') {
1490: if ($env{'form.associate'} ne 'Reverse Association') {
1491: &csv_upload_assign($r,$mgr);
1492: } else {
1493: if ( $env{'form.upfile_associate'} ne 'reverse' ) {
1494: $env{'form.upfile_associate'} = 'reverse';
1495: } else {
1496: $env{'form.upfile_associate'} = 'forward';
1497: }
1498: &csv_upload_map($r);
1499: }
1500: } else {
1501: my $symb=&Apache::lonnet::unescape($env{'form.symb'});
1502: my (undef,undef,$res)=&Apache::lonnet::decode_symb($symb);
1503: my $useslots = &Apache::lonnet::EXT("resource.0.useslots",$symb);
1504: if ($useslots ne 'resource') {
1505: &fail($r,'not_valid');
1506: return OK;
1507: }
1508: $env{'request.symb'}=$symb;
1509: my $type = ($res =~ /\.task$/) ? 'Task'
1510: : 'problem';
1511: my ($status) = &Apache::lonhomework::check_slot_access('0',$type);
1512: if ($status eq 'CAN_ANSWER' ||
1513: $status eq 'NEEDS_CHECKIN' ||
1514: $status eq 'WAITING_FOR_GRADE') {
1515: &fail($r,'not_allowed');
1516: return OK;
1517: }
1518: if ($env{'form.requestattempt'}) {
1519: &show_choices($r,$symb);
1520: } elsif ($env{'form.command'} eq 'release') {
1521: &release_slot($r,$symb);
1522: } elsif ($env{'form.command'} eq 'get') {
1523: &get_slot($r,$symb);
1524: } elsif ($env{'form.command'} eq 'change') {
1525: if (&release_slot($r,$symb,$env{'form.releaseslot'},1)) {
1526: &get_slot($r,$symb);
1527: }
1528: } else {
1529: $r->print("<p>Unknown command: ".$env{'form.command'}."</p>");
1530: }
1531: }
1532: &end_page($r);
1533: return OK;
1534: }
1535:
1536: 1;
1537: __END__
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