1: # The LearningOnline Network with CAPA
2: # Handler for requesting to have slots added to a students record
3: #
4: # $Id: slotrequest.pm,v 1.60 2006/05/12 01:20:31 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:
247: my $use_slots = &Apache::lonnet::EXT("resource.0.useslots");
248: &Apache::lonxml::debug("use_slots is $use_slots<br />");
249:
250: if (&network_error($value) || &network_error($use_slots)) {
251: return 'error: Unable to determine current status';
252: }
253:
254: my $parm_symb = $symb;
255: my $parm_level = 1;
256: if ($use_slots eq 'map') {
257: my ($map) = &Apache::lonnet::decode_symb($symb);
258: $parm_symb = &Apache::lonnet::symbread($map);
259: $parm_level = 2;
260: }
261:
262: foreach my $other_slot (split(/:/, $value)) {
263: if ($other_slot eq $slot_name) {
264: my %consumed=&Apache::lonnet::dump('slot_reservations', $cdom,
265: $cnum, "^$slot_name\0");
266: if (&network_error($value)) {
267: return 'error: Unable to determine current status';
268: }
269: my $me=$env{'user.name'}.':'.$env{'user.domain'};
270: foreach my $key (keys(%consumed)) {
271: if ($consumed{$key}->{'name'} eq $me) {
272: my $num=(split('\0',$key))[1];
273: return -$num;
274: }
275: }
276: }
277: }
278:
279: my $max=$slot->{'maxspace'};
280: if (!defined($max)) { $max=99999; }
281:
282: my (@ids)=&get_reservation_ids($slot_name);
283: if (&network_error(@ids)) {
284: return 'error: Unable to determine current status';
285: }
286: my $last=0;
287: foreach my $id (@ids) {
288: my $num=(split('\0',$id))[1];
289: if ($num > $last) { $last=$num; }
290: }
291:
292: my $wanted=$last+1;
293: &Apache::lonxml::debug("wanted $wanted<br />");
294: if (scalar(@ids) >= $max) {
295: # full up
296: return undef;
297: }
298:
299: my %reservation=('name' => $env{'user.name'}.':'.$env{'user.domain'},
300: 'timestamp' => time,
301: 'symb' => $parm_symb);
302:
303: my $success=&Apache::lonnet::newput('slot_reservations',
304: {"$slot_name\0$wanted" =>
305: \%reservation},
306: $cdom, $cnum);
307:
308: if ($success eq 'ok') {
309: my $new_value=$slot_name;
310: if ($value) {
311: $new_value=$value.':'.$new_value;
312: }
313: my $result=&Apache::lonparmset::storeparm_by_symb($symb,
314: '0_availablestudent',
315: $parm_level, $new_value,
316: 'string',
317: $env{'user.name'},
318: $env{'user.domain'});
319: &Apache::lonxml::debug("hrrm $result");
320: return $wanted;
321: }
322:
323: # someone else got it
324: return undef;
325: }
326:
327: sub remove_registration {
328: my ($r) = @_;
329: if ($env{'form.entry'} ne 'remove all') {
330: return &remove_registration_user($r);
331: }
332: my $slot_name = $env{'form.slotname'};
333: my %slot=&Apache::lonnet::get_slot($slot_name);
334:
335: my ($cnum,$cdom)=&get_course();
336: my %consumed=&Apache::lonnet::dump('slot_reservations',$cdom,$cnum,
337: "^$slot_name\0");
338: if (&network_error(%consumed)) {
339: $r->print("<p>".&mt('A network error has occured.').'</p>');
340: return;
341: }
342: if (!%consumed) {
343: $r->print("<p>".&mt('Slot <tt>[_1]</tt> has no reservations.',
344: $slot_name)."</p>");
345: return;
346: }
347:
348: my @names = map { $consumed{$_}{'name'} } (sort(keys(%consumed)));
349: my $names = join(' ',@names);
350:
351: my $msg = &mt('Remove all of [_1] from slot [_2]?',$names,$slot_name);
352: &remove_registration_confirmation($r,$msg,['entry','slotname']);
353: }
354:
355: sub remove_registration_user {
356: my ($r) = @_;
357:
358: my $slot_name = $env{'form.slotname'};
359:
360: my $name = &Apache::loncommon::plainname($env{'form.uname'},
361: $env{'form.udom'});
362:
363: my $title = &Apache::lonnet::gettitle($env{'form.symb'});
364:
365: my $msg = &mt('Remove [_1] from slot [_2] for [_3]',
366: $name,$slot_name,$title);
367:
368: &remove_registration_confirmation($r,$msg,['uname','udom','slotname',
369: 'entry','symb']);
370: }
371:
372: sub remove_registration_confirmation {
373: my ($r,$msg,$inputs) =@_;
374:
375: my $hidden_input;
376: foreach my $parm (@{$inputs}) {
377: $hidden_input .=
378: '<input type="hidden" name="'.$parm.'" value="'
379: .&HTML::Entities::encode($env{'form.'.$parm},'"<>&\'').'" />'."\n";
380: }
381: my %lt = &Apache::lonlocal::texthash('yes' => 'Yes',
382: 'no' => 'No',);
383: $r->print(<<"END_CONFIRM");
384: <p> $msg </p>
385: <form action="/adm/slotrequest" method="POST">
386: <input type="hidden" name="command" value="release" />
387: <input type="hidden" name="button" value="yes" />
388: $hidden_input
389: <input type="submit" value="$lt{'yes'}" />
390: </form>
391: <form action="/adm/slotrequest" method="POST">
392: <input type="hidden" name="command" value="showslots" />
393: <input type="submit" value="$lt{'no'}" />
394: </form>
395: END_CONFIRM
396:
397: }
398:
399: sub release_all_slot {
400: my ($r,$mgr)=@_;
401:
402: my $slot_name = $env{'form.slotname'};
403:
404: my ($cnum,$cdom)=&get_course();
405:
406: my %consumed=&Apache::lonnet::dump('slot_reservations',$cdom,$cnum,
407: "^$slot_name\0");
408:
409: $r->print('<p>'.&mt('Releasing reservations').'</p>');
410:
411: foreach my $entry (sort { $consumed{$a}{'name'} cmp
412: $consumed{$b}{'name'} } (keys(%consumed))) {
413: my ($uname,$udom) = split(':',$consumed{$entry}{'name'});
414: my ($result,$msg) =
415: &release_reservation($slot_name,$uname,$udom,
416: $consumed{$entry}{'symb'},$mgr);
417: $r->print("<p>$msg</p>");
418: $r->rflush();
419: }
420: $r->print('<p><a href="/adm/slotrequest?command=showslots">'.
421: &mt('Return to slot list').'</a></p>');
422: &return_link($r);
423: }
424:
425: sub release_slot {
426: my ($r,$symb,$slot_name,$inhibit_return_link,$mgr)=@_;
427:
428: if ($slot_name eq '') { $slot_name=$env{'form.slotname'}; }
429:
430: my ($uname,$udom) = ($env{'user.name'}, $env{'user.domain'});
431: if ($mgr eq 'F'
432: && defined($env{'form.uname'}) && defined($env{'form.udom'})) {
433: ($uname,$udom) = ($env{'form.uname'}, $env{'form.udom'});
434: }
435:
436: if ($mgr eq 'F'
437: && defined($env{'form.symb'})) {
438: $symb = $env{'form.symb'};
439: }
440:
441: my ($result,$msg) =
442: &release_reservation($slot_name,$uname,$udom,$symb,$mgr);
443: $r->print("<p>$msg</p>");
444:
445: if ($mgr eq 'F') {
446: $r->print('<p><a href="/adm/slotrequest?command=showslots">'.
447: &mt('Return to slot list').'</a></p>');
448: }
449:
450: if (!$inhibit_return_link) { &return_link($r); }
451: return $result;
452: }
453:
454: sub release_reservation {
455: my ($slot_name,$uname,$udom,$symb,$mgr) = @_;
456: my %slot=&Apache::lonnet::get_slot($slot_name);
457: my $description=&get_description($slot_name,\%slot);
458:
459: if ($mgr ne 'F') {
460: if ($slot{'starttime'} < time) {
461: return (0,&mt('Not allowed to release Reservation: [_1], as it has already ended.',$description));
462: }
463: }
464: # get parameter string, check for existance, rebuild string with the slot
465: my @slots = split(/:/,&Apache::lonnet::EXT("resource.0.availablestudent",
466: $symb,$udom,$uname));
467:
468: my @new_slots;
469: foreach my $exist_slot (@slots) {
470: if ($exist_slot eq $slot_name) { next; }
471: push(@new_slots,$exist_slot);
472: }
473: my $new_param = join(':',@new_slots);
474:
475: my ($cnum,$cdom)=&get_course();
476:
477: # get slot reservations, check if user has one, if so remove reservation
478: my %consumed=&Apache::lonnet::dump('slot_reservations',$cdom,$cnum,
479: "^$slot_name\0");
480: foreach my $entry (keys(%consumed)) {
481: if ( $consumed{$entry}->{'name'} eq ($uname.':'.$udom) ) {
482: &Apache::lonnet::del('slot_reservations',[$entry],
483: $cdom,$cnum);
484: }
485: }
486:
487: my $use_slots = &Apache::lonnet::EXT("resource.0.useslots");
488: &Apache::lonxml::debug("use_slots is $use_slots<br />");
489:
490: if (&network_error($use_slots)) {
491: return (0,'error: Unable to determine current status');
492: }
493:
494: my $parm_level = 1;
495: if ($use_slots eq 'map') {
496: $parm_level = 2;
497: }
498: # store new parameter string
499: my $result=&Apache::lonparmset::storeparm_by_symb($symb,
500: '0_availablestudent',
501: $parm_level, $new_param,
502: 'string', $uname, $udom);
503:
504: my $msg;
505: if ($mgr eq 'F') {
506: $msg = &mt('Released Reservation for user: [_1]',"$uname:$udom");
507: } else {
508: $msg = &mt('Released Reservation: [_1]',$description);
509: }
510: return (1,$msg);
511: }
512:
513: sub delete_slot {
514: my ($r)=@_;
515:
516: my $slot_name = $env{'form.slotname'};
517: my %slot=&Apache::lonnet::get_slot($slot_name);
518:
519: my ($cnum,$cdom)=&get_course();
520: my %consumed=&Apache::lonnet::dump('slot_reservations',$cdom,$cnum,
521: "^$slot_name\0");
522: my ($tmp) = %consumed;
523: if ($tmp =~ /error: 2/) { undef(%consumed); }
524:
525: if (%slot && !%consumed) {
526: $slot{'type'} = 'deleted';
527: my $ret = &Apache::lonnet::cput('slots', {$slot_name => \%slot},
528: $cdom, $cnum);
529: if ($ret eq 'ok') {
530: $r->print("<p>Slot <tt>$slot_name</tt> marked as deleted.</p>");
531: } else {
532: $r->print("<p> An error ($ret) occurse when attempting to delete Slot <tt>$slot_name</tt>.</p>");
533: }
534: } else {
535: if (%consumed) {
536: $r->print("<p>Slot <tt>$slot_name</tt> has active reservations.</p>");
537: } else {
538: $r->print("<p>Slot <tt>$slot_name</tt> does not exist.</p>");
539: }
540: }
541: $r->print('<p><a href="/adm/slotrequest?command=showslots">'.
542: &mt('Return to slot list').'</a></p>');
543: &return_link($r);
544: }
545:
546: sub return_link {
547: my ($r) = @_;
548: $r->print('<p><a href="/adm/flip?postdata=return:">'.
549: &mt('Return to last resource').'</a></p>');
550: }
551:
552: sub get_slot {
553: my ($r,$symb)=@_;
554:
555: my %slot=&Apache::lonnet::get_slot($env{'form.slotname'});
556: my $slot_name=&check_for_conflict($symb,$env{'form.slotname'},\%slot);
557:
558: if ($slot_name =~ /^error: (.*)/) {
559: $r->print("<p>An error occured while attempting to make a reservation. ($1)</p>");
560: &return_link($r);
561: return;
562: }
563: if ($slot_name) {
564: my %slot=&Apache::lonnet::get_slot($slot_name);
565: my $description1=&get_description($slot_name,\%slot);
566: %slot=&Apache::lonnet::get_slot($env{'form.slotname'});
567: my $description2=&get_description($env{'form.slotname'},\%slot);
568: $r->print("<p>Already have a reservation: $description1</p>");
569: if ($slot_name ne $env{'form.slotname'}) {
570: $r->print(<<STUFF);
571: <form method="POST" action="/adm/slotrequest">
572: <input type="hidden" name="symb" value="$env{'form.symb'}" />
573: <input type="hidden" name="slotname" value="$env{'form.slotname'}" />
574: <input type="hidden" name="releaseslot" value="$slot_name" />
575: <input type="hidden" name="command" value="change" />
576: STUFF
577: $r->print("<p>You can either ");
578: $r->print(<<STUFF);
579: <input type="submit" name="change" value="Change" />
580: STUFF
581: $r->print(' your reservation from <b>'.$description1.'</b> to <b>'.
582: $description2.
583: '</b> <br />or </p>');
584: &return_link($r);
585: $r->print(<<STUFF);
586: </form>
587: STUFF
588: } else {
589: &return_link($r);
590: }
591: return;
592: }
593:
594: my $reserved=&make_reservation($env{'form.slotname'},
595: \%slot,$symb);
596: my $description=&get_description($env{'form.slotname'},\%slot);
597: if (defined($reserved)) {
598: if ($slot_name =~ /^error: (.*)/) {
599: $r->print("<p>An error occured while attempting to make a reservation. ($1)</p>");
600: } elsif ($reserved > -1) {
601: $r->print("<p>Success: $description</p>");
602: } elsif ($reserved < 0) {
603: $r->print("<p>Already reserved: $description</p>");
604: }
605: &return_link($r);
606: return;
607: }
608:
609: my %lt=('request'=>"Availibility list",
610: 'try' =>'Try again');
611: %lt=&Apache::lonlocal::texthash(%lt);
612:
613: $r->print(<<STUFF);
614: <p> <font color="red">Failed</font> to reserve a spot for $description. </p>
615: <p>
616: <form method="POST" action="/adm/slotrequest">
617: <input type="submit" name="Try Again" value="$lt{'try'}" />
618: <input type="hidden" name="symb" value="$env{'form.symb'}" />
619: <input type="hidden" name="slotname" value="$env{'form.slotname'}" />
620: <input type="hidden" name="command" value="get" />
621: </form>
622: ?
623: </p>
624: <p>
625: or
626: <form method="POST" action="/adm/slotrequest">
627: <input type="hidden" name="symb" value="$env{'form.symb'}" />
628: <input type="submit" name="requestattempt" value="$lt{'request'}" />
629: </form>
630: </p>
631: or
632: STUFF
633:
634: &return_link($r);
635: return;
636: }
637:
638: sub allowed_slot {
639: my ($slot_name,$slot,$symb,$slots,$consumed_uniqueperiods)=@_;
640:
641: #already started
642: if ($slot->{'starttime'} < time) {
643: # all open slot to be schedulable
644: #return 0;
645: }
646: &Apache::lonxml::debug("$slot_name starttime good");
647:
648: #already ended
649: if ($slot->{'endtime'} < time) {
650: return 0;
651: }
652: &Apache::lonxml::debug("$slot_name endtime good");
653:
654: # not allowed to pick this one
655: if (defined($slot->{'type'})
656: && $slot->{'type'} ne 'schedulable_student') {
657: return 0;
658: }
659: &Apache::lonxml::debug("$slot_name type good");
660:
661: # reserve time not yet started
662: if ($slot->{'startreserve'} > time) {
663: return 0;
664: }
665: &Apache::lonxml::debug("$slot_name reserve good");
666:
667: my $userallowed=0;
668: # its for a different set of users
669: if (defined($slot->{'allowedsections'})) {
670: if (!defined($env{'request.role.sec'})
671: && grep(/^No section assigned$/,
672: split(',',$slot->{'allowedsections'}))) {
673: $userallowed=1;
674: }
675: if (defined($env{'request.role.sec'})
676: && grep(/^\Q$env{'request.role.sec'}\E$/,
677: split(',',$slot->{'allowedsections'}))) {
678: $userallowed=1;
679: }
680: }
681: &Apache::lonxml::debug("$slot_name sections is $userallowed");
682:
683: # its for a different set of users
684: if (defined($slot->{'allowedusers'})
685: && grep(/^\Q$env{'user.name'}:$env{'user.domain'}\E$/,
686: split(',',$slot->{'allowedusers'}))) {
687: $userallowed=1;
688: }
689:
690: if (!defined($slot->{'allowedusers'})
691: && !defined($slot->{'allowedsections'})) {
692: $userallowed=1;
693: }
694:
695: &Apache::lonxml::debug("$slot_name user is $userallowed");
696: return 0 if (!$userallowed);
697:
698: # not allowed for this resource
699: if (defined($slot->{'symb'})
700: && $slot->{'symb'} ne $symb) {
701: return 0;
702: }
703:
704: my $conflict = &check_for_conflict($symb,$slot_name,$slot,$slots,
705: $consumed_uniqueperiods);
706: if ($conflict) {
707: if ($slots->{$conflict}{'starttime'} < time) {
708: return 0;
709: }
710: }
711: &Apache::lonxml::debug("$slot_name symb good");
712: return 1;
713: }
714:
715: sub get_description {
716: my ($slot_name,$slot)=@_;
717: my $description=$slot->{'description'};
718: if (!defined($description)) {
719: $description=&mt('[_1] From [_2] to [_3]',$slot_name,
720: &Apache::lonlocal::locallocaltime($slot->{'starttime'}),
721: &Apache::lonlocal::locallocaltime($slot->{'endtime'}));
722: }
723: return $description;
724: }
725:
726: sub show_choices {
727: my ($r,$symb)=@_;
728:
729: my ($cnum,$cdom)=&get_course();
730: my %slots=&Apache::lonnet::dump('slots',$cdom,$cnum);
731: my $consumed_uniqueperiods = &get_consumed_uniqueperiods(\%slots);
732: my $available;
733: $r->print('<table border="1">');
734: &Apache::lonxml::debug("Checking Slots");
735: my @got_slots=&check_for_reservation($symb,'allslots');
736: foreach my $slot (sort
737: { return $slots{$a}->{'starttime'} <=> $slots{$b}->{'starttime'} }
738: (keys(%slots))) {
739:
740: &Apache::lonxml::debug("Checking Slot $slot");
741: next if (!&allowed_slot($slot,$slots{$slot},undef,\%slots,
742: $consumed_uniqueperiods));
743:
744: $available++;
745:
746: my $description=&get_description($slot,$slots{$slot});
747:
748: my $form=&mt('Unavailable');
749: if ((grep(/^\Q$slot\E$/,@got_slots)) ||
750: &space_available($slot,$slots{$slot},$symb)) {
751: my $text=&mt('Select');
752: my $command='get';
753: if (grep(/^\Q$slot\E$/,@got_slots)) {
754: $text=&mt('Free Reservation');
755: $command='release';
756: } else {
757: my $conflict = &check_for_conflict($symb,$slot,$slots{$slot},
758: \%slots,
759: $consumed_uniqueperiods);
760: if ($conflict) {
761: $text=&mt('Change Reservation');
762: $command='get';
763: }
764: }
765: my $escsymb=&Apache::lonnet::escape($symb);
766: $form=<<STUFF;
767: <form method="POST" action="/adm/slotrequest">
768: <input type="submit" name="Select" value="$text" />
769: <input type="hidden" name="symb" value="$escsymb" />
770: <input type="hidden" name="slotname" value="$slot" />
771: <input type="hidden" name="command" value="$command" />
772: </form>
773: STUFF
774: }
775: $r->print(<<STUFF);
776: <tr>
777: <td>$form</td>
778: <td>$description</td>
779: </tr>
780: STUFF
781: }
782:
783: if (!$available) {
784: $r->print('<tr><td>No available times. <a href="/adm/flip?postdata=return:">'.
785: &mt('Return to last resource').'</a></td></tr>');
786: }
787: $r->print('</table>');
788: }
789:
790: sub to_show {
791: my ($slotname,$slot,$when,$deleted,$name) = @_;
792: my $time=time;
793: my $week=60*60*24*7;
794:
795: if ($deleted eq 'hide' && $slot->{'type'} eq 'deleted') {
796: return 0;
797: }
798:
799: if ($name && $name->{'value'} =~ /\w/) {
800: if ($name->{'type'} eq 'substring') {
801: if ($slotname !~ /\Q$name->{'value'}\E/) {
802: return 0;
803: }
804: }
805: if ($name->{'type'} eq 'exact') {
806: if ($slotname eq $name->{'value'}) {
807: return 0;
808: }
809: }
810: }
811:
812: if ($when eq 'any') {
813: return 1;
814: } elsif ($when eq 'now') {
815: if ($time > $slot->{'starttime'} &&
816: $time < $slot->{'endtime'}) {
817: return 1;
818: }
819: return 0;
820: } elsif ($when eq 'nextweek') {
821: if ( ($time < $slot->{'starttime'} &&
822: ($time+$week) > $slot->{'starttime'})
823: ||
824: ($time < $slot->{'endtime'} &&
825: ($time+$week) > $slot->{'endtime'}) ) {
826: return 1;
827: }
828: return 0;
829: } elsif ($when eq 'lastweek') {
830: if ( ($time > $slot->{'starttime'} &&
831: ($time-$week) < $slot->{'starttime'})
832: ||
833: ($time > $slot->{'endtime'} &&
834: ($time-$week) < $slot->{'endtime'}) ) {
835: return 1;
836: }
837: return 0;
838: } elsif ($when eq 'willopen') {
839: if ($time < $slot->{'starttime'}) {
840: return 1;
841: }
842: return 0;
843: } elsif ($when eq 'wereopen') {
844: if ($time > $slot->{'endtime'}) {
845: return 1;
846: }
847: return 0;
848: }
849:
850: return 1;
851: }
852:
853: sub remove_link {
854: my ($slotname,$entry,$uname,$udom,$symb) = @_;
855:
856: my $remove = &mt('Remove');
857:
858: if ($entry eq 'remove all') {
859: $remove = &mt('Remove All');
860: undef($uname);
861: undef($udom);
862: }
863:
864: $slotname = &Apache::lonnet::escape($slotname);
865: $entry = &Apache::lonnet::escape($entry);
866: $uname = &Apache::lonnet::escape($uname);
867: $udom = &Apache::lonnet::escape($udom);
868: $symb = &Apache::lonnet::escape($symb);
869:
870: return <<"END_LINK";
871: <a href="/adm/slotrequest?command=remove_registration&slotname=$slotname&entry=$entry&uname=$uname&udom=$udom&symb=$symb"
872: >($remove)</a>
873: END_LINK
874:
875: }
876:
877: sub show_table {
878: my ($r,$mgr)=@_;
879:
880: my ($cnum,$cdom)=&get_course();
881: my %slots=&Apache::lonnet::dump('slots',$cdom,$cnum);
882: if ( (keys(%slots))[0] =~ /^error: 2 /) {
883: undef(%slots);
884: }
885: my $available;
886: if ($mgr eq 'F') {
887: $r->print('<div>');
888: $r->print('<form method="POST" action="/adm/slotrequest">
889: <input type="hidden" name="command" value="uploadstart" />
890: <input type="submit" name="start" value="'.&mt('Upload Slot List').'" />
891: </form>');
892: $r->print('<form method="POST" action="/adm/helper/newslot.helper">
893: <input type="submit" name="newslot" value="'.&mt('Create a New Slot').'" />
894: </form>');
895: $r->print('</div>');
896: }
897:
898: my %Saveable_Parameters = ('show' => 'array',
899: 'when' => 'scalar',
900: 'order' => 'scalar',
901: 'deleted' => 'scalar',
902: 'name_filter_type' => 'scalar',
903: 'name_filter_value' => 'scalar',
904: );
905: &Apache::loncommon::store_course_settings('slotrequest',
906: \%Saveable_Parameters);
907: &Apache::loncommon::restore_course_settings('slotrequest',
908: \%Saveable_Parameters);
909: &Apache::grades::init_perm();
910: my ($classlist,$section,$fullname)=&Apache::grades::getclasslist('all');
911: &Apache::grades::reset_perm();
912:
913: # what to display filtering
914: my %show_fields=&Apache::lonlocal::texthash(
915: 'name' => 'Slot Name',
916: 'description' => 'Description',
917: 'type' => 'Type',
918: 'starttime' => 'Start time',
919: 'endtime' => 'End Time',
920: 'startreserve' => 'Time students can start reserving',
921: 'secret' => 'Secret Word',
922: 'maxspace' => 'Maximum # of students',
923: 'ip' => 'IP or DNS restrictions',
924: 'symb' => 'Resource slot is restricted to.',
925: 'allowedsections' => 'Sections slot is restricted to.',
926: 'allowedusers' => 'Users slot is restricted to.',
927: 'uniqueperiod' => 'Period of time slot is unique',
928: 'scheduled' => 'Scheduled Students',
929: 'proctor' => 'List of proctors');
930: my @show_order=('name','description','type','starttime','endtime',
931: 'startreserve','secret','maxspace','ip','symb',
932: 'allowedsections','allowedusers','uniqueperiod',
933: 'scheduled','proctor');
934: my @show =
935: (exists($env{'form.show'})) ? &Apache::loncommon::get_env_multiple('form.show')
936: : keys(%show_fields);
937: my %show = map { $_ => 1 } (@show);
938:
939: #when filtering setup
940: my %when_fields=&Apache::lonlocal::texthash(
941: 'now' => 'Open now',
942: 'nextweek' => 'Open within the next week',
943: 'lastweek' => 'Were open last week',
944: 'willopen' => 'Will open later',
945: 'wereopen' => 'Were open',
946: 'any' => 'Anytime',
947: );
948: my @when_order=('any','now','nextweek','lastweek','willopen','wereopen');
949: $when_fields{'select_form_order'} = \@when_order;
950: my $when = (exists($env{'form.when'})) ? $env{'form.when'}
951: : 'now';
952:
953: #display of students setup
954: my %stu_display_fields=
955: &Apache::lonlocal::texthash('username' => 'User name',
956: 'fullname' => 'Full name',
957: );
958: my @stu_display_order=('fullname','username');
959: my @stu_display =
960: (exists($env{'form.studisplay'})) ? &Apache::loncommon::get_env_multiple('form.studisplay')
961: : keys(%stu_display_fields);
962: my %stu_display = map { $_ => 1 } (@stu_display);
963:
964: #name filtering setup
965: my %name_filter_type_fields=
966: &Apache::lonlocal::texthash('substring' => 'Substring',
967: 'exact' => 'Exact',
968: #'reg' => 'Regular Expression',
969: );
970: my @name_filter_type_order=('substring','exact');
971:
972: $name_filter_type_fields{'select_form_order'} = \@name_filter_type_order;
973: my $name_filter_type =
974: (exists($env{'form.name_filter_type'})) ? $env{'form.name_filter_type'}
975: : 'substring';
976: my $name_filter = {'type' => $name_filter_type,
977: 'value' => $env{'form.name_filter_value'},};
978:
979: #deleted slot filtering
980: my $hide_radio =
981: &Apache::lonhtmlcommon::radio('deleted',$env{'form.deleted'},'hide');
982: my $show_radio =
983: &Apache::lonhtmlcommon::radio('deleted',$env{'form.deleted'},'show');
984:
985: $r->print('<form method="POST" action="/adm/slotrequest">
986: <input type="hidden" name="command" value="showslots" />');
987: $r->print('<div>');
988: $r->print('<table class="inline">
989: <tr><th>'.&mt('Show').'</th>
990: <th>'.&mt('Student Display').'</th>
991: <th>'.&mt('Open').'</th>
992: <th>'.&mt('Slot Name Filter').'</th>
993: <th>'.&mt('Options').'</th>
994: </tr>
995: <tr><td>'.&Apache::loncommon::multiple_select_form('show',\@show,6,\%show_fields,\@show_order).
996: '</td>
997: <td>
998: '.&Apache::loncommon::multiple_select_form('studisplay',\@stu_display,
999: 6,\%stu_display_fields,
1000: \@stu_display_order).'
1001: </td>
1002: <td>'.&Apache::loncommon::select_form($when,'when',%when_fields).
1003: '</td>
1004: <td>'.&Apache::loncommon::select_form($name_filter_type,
1005: 'name_filter_type',
1006: %name_filter_type_fields).
1007: '<br />'.
1008: &Apache::lonhtmlcommon::textbox('name_filter_value',
1009: $env{'form.name_filter_value'},
1010: 15).
1011: '</td>
1012: <td>
1013: <table>
1014: <tr>
1015: <td rowspan="2">Deleted slots:</td>
1016: <td><label>'.$show_radio.'Show</label></td>
1017: </tr>
1018: <tr>
1019: <td><label>'.$hide_radio.'Hide</label></td>
1020: </tr>
1021: </table>
1022: </td>
1023: </tr>
1024: </table>');
1025: $r->print('</div>');
1026: $r->print('<p><input type="submit" name="start" value="'.&mt('Update Display').'" /></p>');
1027: my $linkstart='<a href="/adm/slotrequest?command=showslots&order=';
1028: $r->print('<table class="thinborder">
1029: <tr>
1030: <th></th>');
1031: foreach my $which (@show_order) {
1032: if ($which ne 'proctor' && exists($show{$which})) {
1033: $r->print('<th>'.$linkstart.$which.'">'.$show_fields{$which}.'</a></th>');
1034: }
1035: }
1036:
1037: my %name_cache;
1038: my $slotsort = sub {
1039: if ($env{'form.order'}=~/^(type|description|endtime|startreserve|maxspace|ip|symb|allowedsections|allowedusers)$/) {
1040: if (lc($slots{$a}->{$env{'form.order'}})
1041: ne lc($slots{$b}->{$env{'form.order'}})) {
1042: return (lc($slots{$a}->{$env{'form.order'}})
1043: cmp lc($slots{$b}->{$env{'form.order'}}));
1044: }
1045: } elsif ($env{'form.order'} eq 'name') {
1046: if (lc($a) cmp lc($b)) {
1047: return lc($a) cmp lc($b);
1048: }
1049: } elsif ($env{'form.order'} eq 'uniqueperiod') {
1050:
1051: if ($slots{$a}->{'uniqueperiod'}[0]
1052: ne $slots{$b}->{'uniqueperiod'}[0]) {
1053: return ($slots{$a}->{'uniqueperiod'}[0]
1054: cmp $slots{$b}->{'uniqueperiod'}[0]);
1055: }
1056: if ($slots{$a}->{'uniqueperiod'}[1]
1057: ne $slots{$b}->{'uniqueperiod'}[1]) {
1058: return ($slots{$a}->{'uniqueperiod'}[1]
1059: cmp $slots{$b}->{'uniqueperiod'}[1]);
1060: }
1061: }
1062: return $slots{$a}->{'starttime'} <=> $slots{$b}->{'starttime'};
1063: };
1064: foreach my $slot (sort $slotsort (keys(%slots))) {
1065: if (!&to_show($slot,$slots{$slot},$when,
1066: $env{'form.deleted'},$name_filter)) { next; }
1067: if (defined($slots{$slot}->{'type'})
1068: && $slots{$slot}->{'type'} ne 'schedulable_student') {
1069: #next;
1070: }
1071: my $description=&get_description($slot,$slots{$slot});
1072: my $ids;
1073: if (exists($show{'scheduled'})) {
1074: my %consumed=&Apache::lonnet::dump('slot_reservations',$cdom,$cnum,
1075: "^$slot\0");
1076: my ($tmp)=%consumed;
1077: if ($tmp !~ /^error: /) {
1078: foreach my $entry (sort { $consumed{$a}{name} cmp
1079: $consumed{$b}{name} }
1080: (keys(%consumed))) {
1081: my (undef,$id)=split("\0",$entry);
1082: my ($uname,$udom) = split(':',$consumed{$entry}{'name'});
1083: $ids.= '<nobr>';
1084: foreach my $item (@stu_display_order) {
1085: if ($stu_display{$item}) {
1086: if ($item eq 'fullname') {
1087: $ids.=$fullname->{"$uname:$udom"}.' ';
1088: } elsif ($item eq 'username') {
1089: $ids.="<tt>$uname:$udom</tt> ";
1090: }
1091: }
1092: }
1093: $ids.=&remove_link($slot,$entry,$uname,$udom,
1094: $consumed{$entry}{'symb'}).'</nobr><br />';
1095: }
1096: }
1097: }
1098:
1099: my $start=($slots{$slot}->{'starttime'}?
1100: &Apache::lonlocal::locallocaltime($slots{$slot}->{'starttime'}):'');
1101: my $end=($slots{$slot}->{'endtime'}?
1102: &Apache::lonlocal::locallocaltime($slots{$slot}->{'endtime'}):'');
1103: my $start_reserve=($slots{$slot}->{'startreserve'}?
1104: &Apache::lonlocal::locallocaltime($slots{$slot}->{'startreserve'}):'');
1105:
1106: my $unique;
1107: if (ref($slots{$slot}{'uniqueperiod'})) {
1108: $unique=localtime($slots{$slot}{'uniqueperiod'}[0]).','.
1109: localtime($slots{$slot}{'uniqueperiod'}[1]);
1110: }
1111:
1112: my $title;
1113: if (exists($slots{$slot}{'symb'})) {
1114: my (undef,undef,$res)=
1115: &Apache::lonnet::decode_symb($slots{$slot}{'symb'});
1116: $res = &Apache::lonnet::clutter($res);
1117: $title = &Apache::lonnet::gettitle($slots{$slot}{'symb'});
1118: $title='<a href="'.$res.'?symb='.$slots{$slot}{'symb'}.'">'.$title.'</a>';
1119: }
1120:
1121: my $allowedsections;
1122: if (exists($show{'allowedsections'})) {
1123: $allowedsections =
1124: join(', ',sort(split(/\s*,\s*/,
1125: $slots{$slot}->{'allowedsections'})));
1126: }
1127:
1128: my @allowedusers;
1129: if (exists($show{'allowedusers'})) {
1130: @allowedusers= map {
1131: my ($uname,$udom)=split(/:/,$_);
1132: my $fullname=$name_cache{$_};
1133: if (!defined($fullname)) {
1134: $fullname = &Apache::loncommon::plainname($uname,$udom);
1135: $fullname =~s/\s/ /g;
1136: $name_cache{$_} = $fullname;
1137: }
1138: &Apache::loncommon::aboutmewrapper($fullname,$uname,$udom);
1139: } (sort(split(/\s*,\s*/,$slots{$slot}->{'allowedusers'})));
1140: }
1141: my $allowedusers=join(', ',@allowedusers);
1142:
1143: my @proctors;
1144: my $rowspan=1;
1145: my $colspan=1;
1146: if (exists($show{'proctor'})) {
1147: $rowspan=2;
1148: @proctors= map {
1149: my ($uname,$udom)=split(/@/,$_);
1150: my $fullname=$name_cache{$_};
1151: if (!defined($fullname)) {
1152: $fullname = &Apache::loncommon::plainname($uname,$udom);
1153: $fullname =~s/\s/ /g;
1154: $name_cache{$_} = $fullname;
1155: }
1156: &Apache::loncommon::aboutmewrapper($fullname,$uname,$udom);
1157: } (sort(split(/\s*,\s*/,$slots{$slot}->{'proctor'})));
1158: }
1159: my $proctors=join(', ',@proctors);
1160:
1161: my $edit=(<<"EDITLINK");
1162: <a href="/adm/helper/newslot.helper?name=$slot">Edit</a>
1163: EDITLINK
1164:
1165: my $delete=(<<"DELETELINK");
1166: <a href="/adm/slotrequest?command=delete&slotname=$slot">Delete</a>
1167: DELETELINK
1168:
1169: my $remove_all=&remove_link($slot,'remove all').'<br />';
1170:
1171: if ($ids ne '') { undef($delete); }
1172: if ($slots{$slot}{'type'} ne 'schedulable_student'
1173: || $ids eq '') {
1174: undef($remove_all);
1175: }
1176:
1177: $r->print("<tr>\n<td rowspan=\"$rowspan\">$edit $delete</td>\n");
1178: if (exists($show{'name'})) {
1179: $colspan++;$r->print("<td>$slot</td>");
1180: }
1181: if (exists($show{'description'})) {
1182: $colspan++;$r->print("<td>$description</td>\n");
1183: }
1184: if (exists($show{'type'})) {
1185: $colspan++;$r->print("<td>$slots{$slot}->{'type'}</td>\n");
1186: }
1187: if (exists($show{'starttime'})) {
1188: $colspan++;$r->print("<td>$start</td>\n");
1189: }
1190: if (exists($show{'endtime'})) {
1191: $colspan++;$r->print("<td>$end</td>\n");
1192: }
1193: if (exists($show{'startreserve'})) {
1194: $colspan++;$r->print("<td>$start_reserve</td>\n");
1195: }
1196: if (exists($show{'secret'})) {
1197: $colspan++;$r->print("<td>$slots{$slot}{'secret'}</td>\n");
1198: }
1199: if (exists($show{'maxspace'})) {
1200: $colspan++;$r->print("<td>$slots{$slot}{'maxspace'}</td>\n");
1201: }
1202: if (exists($show{'ip'})) {
1203: $colspan++;$r->print("<td>$slots{$slot}{'ip'}</td>\n");
1204: }
1205: if (exists($show{'symb'})) {
1206: $colspan++;$r->print("<td>$title</td>\n");
1207: }
1208: if (exists($show{'allowedsections'})) {
1209: $colspan++;$r->print("<td>$allowedsections</td>\n");
1210: }
1211: if (exists($show{'allowedusers'})) {
1212: $colspan++;$r->print("<td>$allowedusers</td>\n");
1213: }
1214: if (exists($show{'scheduled'})) {
1215: $colspan++;$r->print("<td>$remove_all $ids</td>\n</tr>\n");
1216: }
1217: if (exists($show{'proctor'})) {
1218: $r->print(<<STUFF);
1219: <tr>
1220: <td colspan="$colspan">$proctors</td>
1221: </tr>
1222: STUFF
1223: }
1224: }
1225: $r->print('</table>');
1226: }
1227:
1228: sub upload_start {
1229: my ($r)=@_;
1230: $r->print(&Apache::grades::checkforfile_js());
1231: my $result.='<table width=100% border=0><tr bgcolor="#e6ffff"><td>'."\n";
1232: $result.=' <b>'.
1233: &mt('Specify a file containing the slot definitions.').
1234: '</b></td></tr>'."\n";
1235: $result.='<tr bgcolor=#ffffe6><td>'."\n";
1236: my $upfile_select=&Apache::loncommon::upfile_select_html();
1237: my $ignore=&mt('Ignore First Line');
1238: $result.=<<ENDUPFORM;
1239: <form method="post" enctype="multipart/form-data" action="/adm/slotrequest" name="slotupload">
1240: <input type="hidden" name="command" value="csvuploadmap" />
1241: $upfile_select
1242: <br /><input type="button" onClick="javascript:checkUpload(this.form);" value="Upload Data" />
1243: <label><input type="checkbox" name="noFirstLine" />$ignore</label>
1244: </form>
1245: ENDUPFORM
1246: $result.='</td></tr></table>'."\n";
1247: $result.='</td></tr></table>'."\n";
1248: $r->print($result);
1249: }
1250:
1251: sub csvuploadmap_header {
1252: my ($r,$datatoken,$distotal)= @_;
1253: my $javascript;
1254: if ($env{'form.upfile_associate'} eq 'reverse') {
1255: $javascript=&csvupload_javascript_reverse_associate();
1256: } else {
1257: $javascript=&csvupload_javascript_forward_associate();
1258: }
1259:
1260: my $checked=(($env{'form.noFirstLine'})?' checked="checked"':'');
1261: my $ignore=&mt('Ignore First Line');
1262: $r->print(<<ENDPICK);
1263: <form method="post" enctype="multipart/form-data" action="/adm/slotrequest" name="slotupload">
1264: <h3>Identify fields</h3>
1265: Total number of records found in file: $distotal <hr />
1266: Enter as many fields as you can. The system will inform you and bring you back
1267: to this page if the data selected is insufficient to create the slots.<hr />
1268: <input type="button" value="Reverse Association" onClick="javascript:this.form.associate.value='Reverse Association';submit(this.form);" />
1269: <label><input type="checkbox" name="noFirstLine" $checked />$ignore</label>
1270: <input type="hidden" name="associate" value="" />
1271: <input type="hidden" name="datatoken" value="$datatoken" />
1272: <input type="hidden" name="fileupload" value="$env{'form.fileupload'}" />
1273: <input type="hidden" name="upfiletype" value="$env{'form.upfiletype'}" />
1274: <input type="hidden" name="upfile_associate"
1275: value="$env{'form.upfile_associate'}" />
1276: <input type="hidden" name="command" value="csvuploadassign" />
1277: <hr />
1278: <script type="text/javascript" language="Javascript">
1279: $javascript
1280: </script>
1281: ENDPICK
1282: return '';
1283:
1284: }
1285:
1286: sub csvuploadmap_footer {
1287: my ($request,$i,$keyfields) =@_;
1288: $request->print(<<ENDPICK);
1289: </table>
1290: <input type="hidden" name="nfields" value="$i" />
1291: <input type="hidden" name="keyfields" value="$keyfields" />
1292: <input type="button" onClick="javascript:verify(this.form)" value="Create Slots" /><br />
1293: </form>
1294: ENDPICK
1295: }
1296:
1297: sub csvupload_javascript_reverse_associate {
1298: my $error1=&mt('You need to specify the name, starttime, endtime and a type');
1299: return(<<ENDPICK);
1300: function verify(vf) {
1301: var foundstart=0;
1302: var foundend=0;
1303: var foundname=0;
1304: var foundtype=0;
1305: for (i=0;i<=vf.nfields.value;i++) {
1306: tw=eval('vf.f'+i+'.selectedIndex');
1307: if (i==0 && tw!=0) { foundname=1; }
1308: if (i==1 && tw!=0) { foundtype=1; }
1309: if (i==2 && tw!=0) { foundstat=1; }
1310: if (i==3 && tw!=0) { foundend=1; }
1311: }
1312: if (foundstart==0 && foundend==0 && foundtype==0 && foundname==0) {
1313: alert('$error1');
1314: return;
1315: }
1316: vf.submit();
1317: }
1318: function flip(vf,tf) {
1319: }
1320: ENDPICK
1321: }
1322:
1323: sub csvupload_javascript_forward_associate {
1324: my $error1=&mt('You need to specify the name, starttime, endtime and a type');
1325: return(<<ENDPICK);
1326: function verify(vf) {
1327: var foundstart=0;
1328: var foundend=0;
1329: var foundname=0;
1330: var foundtype=0;
1331: for (i=0;i<=vf.nfields.value;i++) {
1332: tw=eval('vf.f'+i+'.selectedIndex');
1333: if (tw==1) { foundname=1; }
1334: if (tw==2) { foundtype=1; }
1335: if (tw==3) { foundstat=1; }
1336: if (tw==4) { foundend=1; }
1337: }
1338: if (foundstart==0 && foundend==0 && foundtype==0 && foundname==0) {
1339: alert('$error1');
1340: return;
1341: }
1342: vf.submit();
1343: }
1344: function flip(vf,tf) {
1345: }
1346: ENDPICK
1347: }
1348:
1349: sub csv_upload_map {
1350: my ($r)= @_;
1351:
1352: my $datatoken;
1353: if (!$env{'form.datatoken'}) {
1354: $datatoken=&Apache::loncommon::upfile_store($r);
1355: } else {
1356: $datatoken=$env{'form.datatoken'};
1357: &Apache::loncommon::load_tmp_file($r);
1358: }
1359: my @records=&Apache::loncommon::upfile_record_sep();
1360: if ($env{'form.noFirstLine'}) { shift(@records); }
1361: &csvuploadmap_header($r,$datatoken,$#records+1);
1362: my ($i,$keyfields);
1363: if (@records) {
1364: my @fields=&csvupload_fields();
1365:
1366: if ($env{'form.upfile_associate'} eq 'reverse') {
1367: &Apache::loncommon::csv_print_samples($r,\@records);
1368: $i=&Apache::loncommon::csv_print_select_table($r,\@records,
1369: \@fields);
1370: foreach (@fields) { $keyfields.=$_->[0].','; }
1371: chop($keyfields);
1372: } else {
1373: unshift(@fields,['none','']);
1374: $i=&Apache::loncommon::csv_samples_select_table($r,\@records,
1375: \@fields);
1376: my %sone=&Apache::loncommon::record_sep($records[0]);
1377: $keyfields=join(',',sort(keys(%sone)));
1378: }
1379: }
1380: &csvuploadmap_footer($r,$i,$keyfields);
1381:
1382: return '';
1383: }
1384:
1385: sub csvupload_fields {
1386: return (['name','Slot name'],
1387: ['type','Type of slot'],
1388: ['starttime','Start Time of slot'],
1389: ['endtime','End Time of slot'],
1390: ['startreserve','Reservation Start Time'],
1391: ['ip','IP or DNS restriction'],
1392: ['proctor','List of proctor ids'],
1393: ['description','Slot Description'],
1394: ['maxspace','Maximum number of reservations'],
1395: ['symb','Resource Restriction'],
1396: ['uniqueperiod','Date range of slot exclusion'],
1397: ['secret','Secret word proctor uses to validate'],
1398: ['allowedsections','Sections slot is restricted to'],
1399: ['allowedusers','Users slot is restricted to'],
1400: );
1401: }
1402:
1403: sub csv_upload_assign {
1404: my ($r,$mgr)= @_;
1405: &Apache::loncommon::load_tmp_file($r);
1406: my @slotdata = &Apache::loncommon::upfile_record_sep();
1407: if ($env{'form.noFirstLine'}) { shift(@slotdata); }
1408: my %fields=&Apache::grades::get_fields();
1409: $r->print('<h3>Creating Slots</h3>');
1410: my $cname=$env{'course.'.$env{'request.course.id'}.'.num'};
1411: my $cdom=$env{'course.'.$env{'request.course.id'}.'.domain'};
1412: my $countdone=0;
1413: my @errors;
1414: foreach my $slot (@slotdata) {
1415: my %slot;
1416: my %entries=&Apache::loncommon::record_sep($slot);
1417: my $domain;
1418: my $name=$entries{$fields{'name'}};
1419: if ($name=~/^\s*$/) {
1420: push(@errors,"Did not create slot with no name");
1421: next;
1422: }
1423: if ($name=~/\s/) {
1424: push(@errors,"$name not created -- Name must not contain spaces");
1425: next;
1426: }
1427: if ($name=~/\W/) {
1428: push(@errors,"$name not created -- Name must contain only letters, numbers and _");
1429: next;
1430: }
1431: if ($entries{$fields{'type'}}) {
1432: $slot{'type'}=$entries{$fields{'type'}};
1433: } else {
1434: $slot{'type'}='preassigned';
1435: }
1436: if ($slot{'type'} ne 'preassigned' &&
1437: $slot{'type'} ne 'schedulable_student') {
1438: push(@errors,"$name not created -- invalid type ($slot{'type'}) must be either preassigned or schedulable_student");
1439: next;
1440: }
1441: if ($entries{$fields{'starttime'}}) {
1442: $slot{'starttime'}=&UnixDate($entries{$fields{'starttime'}},"%s");
1443: }
1444: if ($entries{$fields{'endtime'}}) {
1445: $slot{'endtime'}=&UnixDate($entries{$fields{'endtime'}},"%s");
1446: }
1447:
1448: # start/endtime must be defined and greater than zero
1449: if (!$slot{'starttime'}) {
1450: push(@errors,"$name not created -- Invalid start time");
1451: next;
1452: }
1453: if (!$slot{'endtime'}) {
1454: push(@errors,"$name not created -- Invalid end time");
1455: next;
1456: }
1457: if ($slot{'starttime'} > $slot{'endtime'}) {
1458: push(@errors,"$name not created -- Slot starts after it ends");
1459: next;
1460: }
1461:
1462: if ($entries{$fields{'startreserve'}}) {
1463: $slot{'startreserve'}=
1464: &UnixDate($entries{$fields{'startreserve'}},"%s");
1465: }
1466: if (defined($slot{'startreserve'})
1467: && $slot{'startreserve'} > $slot{'starttime'}) {
1468: push(@errors,"$name not created -- Slot's reservation start time is after the slot's start time.");
1469: next;
1470: }
1471:
1472: foreach my $key ('ip','proctor','description','maxspace',
1473: 'secret','symb') {
1474: if ($entries{$fields{$key}}) {
1475: $slot{$key}=$entries{$fields{$key}};
1476: }
1477: }
1478:
1479: if ($entries{$fields{'uniqueperiod'}}) {
1480: my ($start,$end)=split(',',$entries{$fields{'uniqueperiod'}});
1481: my @times=(&UnixDate($start,"%s"),
1482: &UnixDate($end,"%s"));
1483: $slot{'uniqueperiod'}=\@times;
1484: }
1485: if (defined($slot{'uniqueperiod'})
1486: && $slot{'uniqueperiod'}[0] > $slot{'uniqueperiod'}[1]) {
1487: push(@errors,"$name not created -- Slot's unique period start time is later than the unique period's end time.");
1488: next;
1489: }
1490:
1491: &Apache::lonnet::cput('slots',{$name=>\%slot},$cdom,$cname);
1492: $r->print('.');
1493: $r->rflush();
1494: $countdone++;
1495: }
1496: $r->print("<p>Created $countdone slots\n</p>");
1497: foreach my $error (@errors) {
1498: $r->print("<p>$error\n</p>");
1499: }
1500: &show_table($r,$mgr);
1501: return '';
1502: }
1503:
1504: sub handler {
1505: my $r=shift;
1506:
1507: &Apache::loncommon::content_type($r,'text/html');
1508: &Apache::loncommon::no_cache($r);
1509: if ($r->header_only()) {
1510: $r->send_http_header();
1511: return OK;
1512: }
1513:
1514: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'});
1515:
1516: my $vgr=&Apache::lonnet::allowed('vgr',$env{'request.course.id'});
1517: my $mgr=&Apache::lonnet::allowed('mgr',$env{'request.course.id'});
1518: my $title='Requesting Another Worktime';
1519: if ($env{'form.command'} =~ /^(showslots|uploadstart|csvuploadmap|csvuploadassign)$/ && $vgr eq 'F') {
1520: $title = 'Managing Slots';
1521: }
1522: &start_page($r,$title);
1523:
1524: if ($env{'form.command'} eq 'showslots' && $vgr eq 'F') {
1525: &show_table($r,$mgr);
1526: } elsif ($env{'form.command'} eq 'remove_registration' && $mgr eq 'F') {
1527: &remove_registration($r);
1528: } elsif ($env{'form.command'} eq 'release' && $mgr eq 'F') {
1529: if ($env{'form.entry'} eq 'remove all') {
1530: &release_all_slot($r,$mgr);
1531: } else {
1532: &release_slot($r,undef,undef,undef,$mgr);
1533: }
1534: } elsif ($env{'form.command'} eq 'delete' && $mgr eq 'F') {
1535: &delete_slot($r);
1536: } elsif ($env{'form.command'} eq 'uploadstart' && $mgr eq 'F') {
1537: &upload_start($r);
1538: } elsif ($env{'form.command'} eq 'csvuploadmap' && $mgr eq 'F') {
1539: &csv_upload_map($r);
1540: } elsif ($env{'form.command'} eq 'csvuploadassign' && $mgr eq 'F') {
1541: if ($env{'form.associate'} ne 'Reverse Association') {
1542: &csv_upload_assign($r,$mgr);
1543: } else {
1544: if ( $env{'form.upfile_associate'} ne 'reverse' ) {
1545: $env{'form.upfile_associate'} = 'reverse';
1546: } else {
1547: $env{'form.upfile_associate'} = 'forward';
1548: }
1549: &csv_upload_map($r);
1550: }
1551: } else {
1552: my $symb=&Apache::lonnet::unescape($env{'form.symb'});
1553: my (undef,undef,$res)=&Apache::lonnet::decode_symb($symb);
1554: my $useslots = &Apache::lonnet::EXT("resource.0.useslots",$symb);
1555: if ($useslots ne 'resource' && $useslots ne 'map') {
1556: &fail($r,'not_valid');
1557: return OK;
1558: }
1559: $env{'request.symb'}=$symb;
1560: my $type = ($res =~ /\.task$/) ? 'Task'
1561: : 'problem';
1562: my ($status) = &Apache::lonhomework::check_slot_access('0',$type);
1563: if ($status eq 'CAN_ANSWER' ||
1564: $status eq 'NEEDS_CHECKIN' ||
1565: $status eq 'WAITING_FOR_GRADE') {
1566: &fail($r,'not_allowed');
1567: return OK;
1568: }
1569: if ($env{'form.requestattempt'}) {
1570: &show_choices($r,$symb);
1571: } elsif ($env{'form.command'} eq 'release') {
1572: &release_slot($r,$symb);
1573: } elsif ($env{'form.command'} eq 'get') {
1574: &get_slot($r,$symb);
1575: } elsif ($env{'form.command'} eq 'change') {
1576: if (&release_slot($r,$symb,$env{'form.releaseslot'},1)) {
1577: &get_slot($r,$symb);
1578: }
1579: } else {
1580: $r->print("<p>Unknown command: ".$env{'form.command'}."</p>");
1581: }
1582: }
1583: &end_page($r);
1584: return OK;
1585: }
1586:
1587: 1;
1588: __END__
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