1: # The LearningOnline Network with CAPA
2: # Handler for requesting to have slots added to a students record
3: #
4: # $Id: slotrequest.pm,v 1.17 2005/09/13 07:56:03 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 Date::Manip;
38:
39: sub fail {
40: my ($r,$code)=@_;
41: if ($code eq 'not_valid') {
42: $r->print('<p>'.&mt('Unable to understand what resource you wanted to sign up for.').'</p>');
43:
44: } elsif ($code eq 'not_allowed') {
45: $r->print('<p>'.&mt('Not allowed to sign up or change reservations at this time.').'</p>');
46: } else {
47: $r->print('<p>'.&mt('Failed.').'</p>');
48: }
49:
50: $r->print('<p><a href="/adm/flip?postdata=return:">'.
51: &mt('Return to last resource').'</a></p>');
52: &end_page($r);
53: }
54:
55: sub start_page {
56: my ($r)=@_;
57: my $html=&Apache::lonxml::xmlbegin();
58: $r->print($html.'<head><title>'.
59: &mt('Request another Worktime').'</title></head>');
60: $r->print(&Apache::loncommon::bodytag('Requesting another Worktime'));
61: }
62:
63: sub end_page {
64: my ($r)=@_;
65: $r->print(&Apache::loncommon::endbodytag().'</html>');
66: }
67:
68: =pod
69:
70: slot_reservations db
71: - keys are
72: - slotname\0id -> value is an hashref of
73: name -> user@domain of holder
74: timestamp -> timestamp of reservation
75: symb -> symb of resource that it is reserved for
76:
77: =cut
78:
79: sub get_course {
80: (undef,my $courseid)=&Apache::lonxml::whichuser();
81: my $cdom=$env{'course.'.$courseid.'.domain'};
82: my $cnum=$env{'course.'.$courseid.'.num'};
83: return ($cnum,$cdom);
84: }
85:
86: sub get_reservation_ids {
87: my ($slot_name)=@_;
88:
89: my ($cnum,$cdom)=&get_course();
90:
91: my %consumed=&Apache::lonnet::dump('slot_reservations',$cdom,$cnum,
92: "^$slot_name\0");
93:
94: my ($tmp)=%consumed;
95: if ($tmp=~/^error: 2 / ) {
96: return 0;
97: }
98: return keys(%consumed);
99: }
100:
101: sub space_available {
102: my ($slot_name,$slot)=@_;
103: my $max=$slot->{'maxspace'};
104:
105: if (!defined($max)) { return 1; }
106:
107: my $consumed=scalar(&get_reservation_ids($slot_name));
108: if ($consumed < $max) {
109: return 1
110: }
111: return 0;
112: }
113:
114: sub check_for_reservation {
115: my ($symb)=@_;
116: my $student = &Apache::lonnet::EXT("resource.0.availablestudent", $symb,
117: $env{'user.domain'}, $env{'user.name'});
118:
119: my $course = &Apache::lonnet::EXT("resource.0.available", $symb,
120: $env{'user.domain'}, $env{'user.name'});
121: my @slots = (split(/:/,$student), split(/:/, $course));
122:
123: &Apache::lonxml::debug(" slot list is ".join(':',@slots));
124:
125: my ($cnum,$cdom)=&get_course();
126: my %slots=&Apache::lonnet::get('slots', [@slots], $cdom, $cnum);
127:
128: foreach my $slot_name (@slots) {
129: next if (!defined($slots{$slot_name}) ||
130: !ref($slots{$slot_name}));
131: &Apache::lonxml::debug(time." $slot_name ".
132: $slots{$slot_name}->{'starttime'}." -- ".
133: $slots{$slot_name}->{'startreserve'});
134: if ($slots{$slot_name}->{'endtime'} > time &&
135: $slots{$slot_name}->{'startreserve'} < time) {
136: # between start of reservation times and end of slot
137: return($slot_name, $slots{$slot_name});
138: }
139: }
140: return (undef,undef);
141: }
142:
143: sub check_for_conflict {
144: my ($symb,$new_slot_name)=@_;
145: my $student = &Apache::lonnet::EXT("resource.0.availablestudent", $symb,
146: $env{'user.domain'}, $env{'user.name'});
147: my $course = &Apache::lonnet::EXT("resource.0.available", $symb,
148: $env{'user.domain'}, $env{'user.name'});
149: my @slots = (split(/:/,$student), split(/:/, $course));
150: my ($cnum,$cdom)=&get_course();
151: my %slots=&Apache::lonnet::get('slots', [@slots], $cdom, $cnum);
152: foreach my $slot_name (@slots) {
153: next if (!defined($slots{$slot_name}) ||
154: !ref($slots{$slot_name}));
155:
156: next if (!defined($slots{$slot_name}->{'uniqueperiod'}) ||
157: !ref($slots{$slot_name}->{'uniqueperiod'}));
158: my ($start,$end)=@{$slots{$slot_name}->{'uniqueperiod'}};
159: if ($start<time && time < $end) {
160: return $slot_name;
161: }
162: }
163: return undef;
164:
165: }
166:
167: sub make_reservation {
168: my ($slot_name,$slot,$symb)=@_;
169:
170: my ($cnum,$cdom)=&get_course();
171:
172: my $value=&Apache::lonnet::EXT("resource.0.availablestudent",$symb,
173: $env{'user.domain'},$env{'user.name'});
174: &Apache::lonxml::debug("value is $value<br />");
175: foreach my $other_slot (split(/:/, $value)) {
176: if ($other_slot eq $slot_name) {
177: my %consumed=&Apache::lonnet::dump('slot_reservations', $cdom,
178: $cnum, "^$slot_name\0");
179:
180: my $me=$env{'user.name'}.'@'.$env{'user.domain'};
181: foreach my $key (keys(%consumed)) {
182: if ($consumed{$key}->{'name'} eq $me) {
183: my $num=(split('\0',$key))[1];
184: return -$num;
185: }
186: }
187: }
188: }
189:
190: my $max=$slot->{'maxspace'};
191: if (!defined($max)) { $max=99999; }
192:
193: my (@ids)=&get_reservation_ids($slot_name);
194:
195: my $last=0;
196: foreach my $id (@ids) {
197: my $num=(split('\0',$id))[1];
198: if ($num > $last) { $last=$num; }
199: }
200:
201: my $wanted=$last+1;
202: &Apache::lonxml::debug("wanted $wanted<br />");
203: if (scalar(@ids) >= $max) {
204: # full up
205: return undef;
206: }
207:
208: my %reservation=('name' => $env{'user.name'}.'@'.$env{'user.domain'},
209: 'timestamp' => time,
210: 'symb' => $symb);
211:
212: my $success=&Apache::lonnet::newput('slot_reservations',
213: {"$slot_name\0$wanted" =>
214: \%reservation},
215: $cdom, $cnum);
216:
217: if ($success eq 'ok') {
218: my $new_value=$slot_name;
219: if ($value) {
220: $new_value=$value.':'.$new_value;
221: }
222: my $result=&Apache::lonparmset::storeparm_by_symb($symb,
223: '0_availablestudent',
224: 1, $new_value, 'string',
225: $env{'user.name'},
226: $env{'user.domain'});
227: &Apache::lonxml::debug("hrrm $result");
228: return $wanted;
229: }
230:
231: # someone else got it
232: return undef;
233: }
234:
235: sub release_slot {
236: my ($r,$symb,$slot_name,$inhibit_return_link)=@_;
237:
238: if ($slot_name eq '') { $slot_name=$env{'form.slotname'}; }
239: my ($cnum,$cdom)=&get_course();
240:
241: # get parameter string, check for existance, rebuild string with the slot
242:
243: my @slots = split(/:/,&Apache::lonnet::EXT("resource.0.availablestudent",
244: $symb,$env{'user.domain'},
245: $env{'user.name'}));
246: my @new_slots;
247: foreach my $exist_slot (@slots) {
248: if ($exist_slot eq $slot_name) { next; }
249: push(@new_slots,$exist_slot);
250: }
251: my $new_param = join(':',@new_slots);
252:
253: # get slot reservations, check if user has one, if so remove reservation
254: my %consumed=&Apache::lonnet::dump('slot_reservations',$cdom,$cnum,
255: "^$slot_name\0");
256: foreach my $entry (keys(%consumed)) {
257: if ( $consumed{$entry}->{'name'} eq
258: ($env{'user.name'}.'@'.$env{'user.domain'}) ) {
259: &Apache::lonnet::del('slot_reservations',[$entry],
260: $cdom,$cnum);
261: }
262: }
263: # store new parameter string
264: my $result=&Apache::lonparmset::storeparm_by_symb($symb,
265: '0_availablestudent',
266: 1, $new_param, 'string',
267: $env{'user.name'},
268: $env{'user.domain'});
269: my %slot=&Apache::lonnet::get_slot($slot_name);
270: my $description=&get_description($env{'form.slotname'},\%slot);
271: $r->print("<p>Released Reservation: $description</p>");
272: if (!$inhibit_return_link) {
273: $r->print('<p><a href="/adm/flip?postdata=return:">'.
274: &mt('Return to last resource').'</a></p>');
275: }
276: return 1;
277: }
278:
279: sub get_slot {
280: my ($r,$symb)=@_;
281:
282: my $slot_name=&check_for_conflict($symb,$env{'form.slotname'});
283: if ($slot_name) {
284: my %slot=&Apache::lonnet::get_slot($slot_name);
285: my $description1=&get_description($slot_name,\%slot);
286: %slot=&Apache::lonnet::get_slot($env{'form.slotname'});
287: my $description2=&get_description($env{'form.slotname'},\%slot);
288: $r->print("<p>Already have a reservation: $description1</p>");
289: if ($slot_name ne $env{'form.slotname'}) {
290: $r->print(<<STUFF);
291: <form method="POST" action="/adm/slotrequest">
292: <input type="hidden" name="symb" value="$env{'form.symb'}" />
293: <input type="hidden" name="slotname" value="$env{'form.slotname'}" />
294: <input type="hidden" name="releaseslot" value="$slot_name" />
295: <input type="hidden" name="command" value="change" />
296: STUFF
297: $r->print("<p>You can either ");
298: $r->print(<<STUFF);
299: <input type="submit" name="change" value="Change" />
300: STUFF
301: $r->print(' your reservation from <b>'.$description1.'</b> to <b>'.
302: $description2.
303: '</b> <br />or <a href="/adm/flip?postdata=return:">'.
304: &mt('Return to last resource').'</a></p>');
305: $r->print(<<STUFF);
306: </form>
307: STUFF
308: } else {
309: $r->print('<p><a href="/adm/flip?postdata=return:">'.
310: &mt('Return to last resource').'</a></p>');
311: }
312: return;
313: }
314: my %slot=&Apache::lonnet::get_slot($env{'form.slotname'});
315: my $reserved=&make_reservation($env{'form.slotname'},
316: \%slot,$symb);
317: my $description=&get_description($env{'form.slotname'},\%slot);
318: if (defined($reserved)) {
319: if ($reserved > -1) {
320: $r->print("<p>Success: $description</p>");
321: $r->print('<p><a href="/adm/flip?postdata=return:">'.
322: &mt('Return to last resource').'</a></p>');
323: return;
324: } elsif ($reserved < 0) {
325: $r->print("<p>Already reserved: $description</p>");
326: $r->print('<p><a href="/adm/flip?postdata=return:">'.
327: &mt('Return to last resource').'</a></p>');
328: return;
329: }
330: }
331:
332: my %lt=('request'=>"Availibility list",
333: 'try' =>'Try again');
334: %lt=&Apache::lonlocal::texthash(%lt);
335:
336: $r->print(<<STUFF);
337: <p> <font color="red">Failed</font> to reserve a spot for $description. </p>
338: <p>
339: <form method="POST" action="/adm/slotrequest">
340: <input type="submit" name="Try Again" value="$lt{'try'}" />
341: <input type="hidden" name="symb" value="$env{'form.symb'}" />
342: <input type="hidden" name="slotname" value="$env{'form.slotname'}" />
343: <input type="hidden" name="command" value="get" />
344: </form>
345: ?
346: </p>
347: <p>
348: or
349: <form method="POST" action="/adm/slotrequest">
350: <input type="hidden" name="symb" value="$env{'form.symb'}" />
351: <input type="submit" name="requestattempt" value="$lt{'request'}" />
352: </form>
353: </p>
354: or
355: STUFF
356: $r->print('<p><a href="/adm/flip?postdata=return:">'.
357: &mt('Return to last resource').'</a></p>');
358: return;
359: }
360:
361: sub allowed_slot {
362: my ($slot_name,$slot,$symb)=@_;
363: #already started
364: if ($slot->{'starttime'} < time) {
365: # all open slot to be schedulable
366: #return 0;
367: }
368: &Apache::lonxml::debug("$slot_name starttime good");
369: #already ended
370: if ($slot->{'endtime'} < time) {
371: return 0;
372: }
373: &Apache::lonxml::debug("$slot_name endtime good");
374: # not allowed to pick this one
375: if (defined($slot->{'type'})
376: && $slot->{'type'} ne 'schedulable_student') {
377: return 0;
378: }
379: &Apache::lonxml::debug("$slot_name type good");
380: # not allowed for this resource
381: if (defined($slot->{'symb'})
382: && $slot->{'symb'} ne $symb) {
383: return 0;
384: }
385: &Apache::lonxml::debug("$slot_name symb good");
386: return 1;
387: }
388:
389: sub get_description {
390: my ($slot_name,$slot)=@_;
391: my $description=$slot->{'description'};
392: if (!defined($description)) {
393: $description=&mt('[_1] From [_2] to [_3]',$slot_name,
394: &Apache::lonlocal::locallocaltime($slot->{'starttime'}),
395: &Apache::lonlocal::locallocaltime($slot->{'endtime'}));
396: }
397: return $description;
398: }
399:
400: sub show_choices {
401: my ($r,$symb)=@_;
402:
403: my ($cnum,$cdom)=&get_course();
404: my %slots=&Apache::lonnet::dump('slots',$cdom,$cnum);
405: my $available;
406: $r->print('<table border="1">');
407: &Apache::lonxml::debug("Checking Slots");
408: my ($got_slot)=&check_for_reservation($symb);
409: foreach my $slot (sort
410: { return $slots{$a}->{'starttime'} <=> $slots{$b}->{'starttime'} }
411: (keys(%slots))) {
412:
413: &Apache::lonxml::debug("Checking Slot $slot");
414: next if (!&allowed_slot($slot,$slots{$slot}));
415:
416: $available++;
417:
418: my $description=&get_description($slot,$slots{$slot});
419:
420: my $form=&mt('Unavailable');
421: if (($slot eq $got_slot) ||
422: &space_available($slot,$slots{$slot},$symb)) {
423: my $text=&mt('Select');
424: my $command='get';
425: if ($slot eq $got_slot) {
426: $text=&mt('Free Reservation');
427: $command='release';
428: }
429: my $escsymb=&Apache::lonnet::escape($symb);
430: $form=<<STUFF;
431: <form method="POST" action="/adm/slotrequest">
432: <input type="submit" name="Select" value="$text" />
433: <input type="hidden" name="symb" value="$escsymb" />
434: <input type="hidden" name="slotname" value="$slot" />
435: <input type="hidden" name="command" value="$command" />
436: </form>
437: STUFF
438: }
439: $r->print(<<STUFF);
440: <tr>
441: <td>$form</td>
442: <td>$description</td>
443: </tr>
444: STUFF
445: }
446:
447: if (!$available) {
448: $r->print('<tr><td>No available times. <a href="/adm/flip?postdata=return:">'.
449: &mt('Return to last resource').'</a></td></tr>');
450: }
451: $r->print('</table>');
452: }
453:
454: sub show_table {
455: my ($r,$symb,$mgr)=@_;
456:
457: my ($cnum,$cdom)=&get_course();
458: my %slots=&Apache::lonnet::dump('slots',$cdom,$cnum);
459: my $available;
460: if ($mgr eq 'F') {
461: $r->print('<form method="POST" action="/adm/slotrequest">
462: <input type="hidden" name="command" value="uploadstart" />
463: <input type="hidden" name="symb" value="'.$env{'form.symb'}.'" />
464: <input type="submit" name="start" value="'.&mt('Upload Slot List').'" />
465: </form>');
466: }
467: $r->print('<table border="1">
468: <tr>
469: <th>Slot name</th>
470: <th>Type</th>
471: <th>Description</th>
472: <th>Start Time</th>
473: <th>End Time</th>
474: <th>Max space</th>
475: <th>Scheduled Students</th>
476: <th>Proctors</th>
477: <th>Unique Period</th>
478: </tr>');
479: foreach my $slot (sort
480: { return $slots{$a}->{'starttime'} <=> $slots{$b}->{'starttime'} }
481: (keys(%slots))) {
482: if (defined($slots{$slot}->{'type'})
483: && $slots{$slot}->{'type'} ne 'schedulable_student') {
484: #next;
485: }
486: my $description=&get_description($slot,$slots{$slot});
487: my %consumed=&Apache::lonnet::dump('slot_reservations',$cdom,$cnum,
488: "^$slot\0");
489: my $ids;
490: foreach my $entry (sort(keys(%consumed))) {
491: my (undef,$id)=split("\0",$entry);
492: $ids.= $id.'-> '.$consumed{$entry}->{'name'}.'<br />';
493: }
494: my $start=localtime($slots{$slot}->{'starttime'});
495: my $end=localtime($slots{$slot}->{'endtime'});
496: my $unique;
497: if (ref($slots{$slot}{'uniqueperiod'})) {
498: $unique=localtime($slots{$slot}{'uniqueperiod'}[0]).','.
499: localtime($slots{$slot}{'uniqueperiod'}[1]);
500: }
501:
502: $r->print(<<STUFF);
503: <tr>
504: <td>$slot</td>
505: <td>$slots{$slot}->{'type'}</td>
506: <td>$description</td>
507: <td>$start</td>
508: <td>$end</td>
509: <td>$slots{$slot}->{'maxspace'}</td>
510: <td>$ids</td>
511: <td>$slots{$slot}->{'proctor'}</td>
512: <td>$unique</td>
513: </tr>
514: STUFF
515: }
516: $r->print('</table>');
517: }
518:
519: sub upload_start {
520: my ($r,$symb)=@_;
521: $r->print(&Apache::grades::checkforfile_js());
522: my $result.='<table width=100% border=0><tr bgcolor="#e6ffff"><td>'."\n";
523: $result.=' <b>'.
524: &mt('Specify a file containing the slot definitions.').
525: '</b></td></tr>'."\n";
526: $result.='<tr bgcolor=#ffffe6><td>'."\n";
527: my $upfile_select=&Apache::loncommon::upfile_select_html();
528: my $ignore=&mt('Ignore First Line');
529: $result.=<<ENDUPFORM;
530: <form method="post" enctype="multipart/form-data" action="/adm/slotrequest" name="slotupload">
531: <input type="hidden" name="symb" value="$symb" />
532: <input type="hidden" name="command" value="csvuploadmap" />
533: $upfile_select
534: <br /><input type="button" onClick="javascript:checkUpload(this.form);" value="Upload Data" />
535: <label><input type="checkbox" name="noFirstLine" />$ignore</label>
536: </form>
537: ENDUPFORM
538: $result.='</td></tr></table>'."\n";
539: $result.='</td></tr></table>'."\n";
540: $r->print($result);
541: }
542:
543: sub csvuploadmap_header {
544: my ($r,$symb,$datatoken,$distotal)= @_;
545: my $javascript;
546: if ($env{'form.upfile_associate'} eq 'reverse') {
547: $javascript=&csvupload_javascript_reverse_associate();
548: } else {
549: $javascript=&csvupload_javascript_forward_associate();
550: }
551:
552: my $checked=(($env{'form.noFirstLine'})?' checked="checked"':'');
553: my $ignore=&mt('Ignore First Line');
554: $r->print(<<ENDPICK);
555: <form method="post" enctype="multipart/form-data" action="/adm/slotrequest" name="slotupload">
556: <h3>Identify fields</h3>
557: Total number of records found in file: $distotal <hr />
558: Enter as many fields as you can. The system will inform you and bring you back
559: to this page if the data selected is insufficient to create the slots.<hr />
560: <input type="button" value="Reverse Association" onClick="javascript:this.form.associate.value='Reverse Association';submit(this.form);" />
561: <label><input type="checkbox" name="noFirstLine" $checked />$ignore</label>
562: <input type="hidden" name="associate" value="" />
563: <input type="hidden" name="datatoken" value="$datatoken" />
564: <input type="hidden" name="fileupload" value="$env{'form.fileupload'}" />
565: <input type="hidden" name="upfiletype" value="$env{'form.upfiletype'}" />
566: <input type="hidden" name="upfile_associate"
567: value="$env{'form.upfile_associate'}" />
568: <input type="hidden" name="symb" value="$symb" />
569: <input type="hidden" name="command" value="csvuploadassign" />
570: <hr />
571: <script type="text/javascript" language="Javascript">
572: $javascript
573: </script>
574: ENDPICK
575: return '';
576:
577: }
578:
579: sub csvuploadmap_footer {
580: my ($request,$i,$keyfields) =@_;
581: $request->print(<<ENDPICK);
582: </table>
583: <input type="hidden" name="nfields" value="$i" />
584: <input type="hidden" name="keyfields" value="$keyfields" />
585: <input type="button" onClick="javascript:verify(this.form)" value="Create Slots" /><br />
586: </form>
587: ENDPICK
588: }
589:
590: sub csvupload_javascript_reverse_associate {
591: my $error1=&mt('You need to specify the name, starttime, endtime and a type');
592: return(<<ENDPICK);
593: function verify(vf) {
594: var foundstart=0;
595: var foundend=0;
596: var foundname=0;
597: var foundtype=0;
598: for (i=0;i<=vf.nfields.value;i++) {
599: tw=eval('vf.f'+i+'.selectedIndex');
600: if (i==0 && tw!=0) { foundname=1; }
601: if (i==1 && tw!=0) { foundtype=1; }
602: if (i==2 && tw!=0) { foundstat=1; }
603: if (i==3 && tw!=0) { foundend=1; }
604: }
605: if (foundstart==0 && foundend==0 && foundtype==0 && foundname==0) {
606: alert('$error1');
607: return;
608: }
609: vf.submit();
610: }
611: function flip(vf,tf) {
612: }
613: ENDPICK
614: }
615:
616: sub csvupload_javascript_forward_associate {
617: my $error1=&mt('You need to specify the name, starttime, endtime and a type');
618: return(<<ENDPICK);
619: function verify(vf) {
620: var foundstart=0;
621: var foundend=0;
622: var foundname=0;
623: var foundtype=0;
624: for (i=0;i<=vf.nfields.value;i++) {
625: tw=eval('vf.f'+i+'.selectedIndex');
626: if (tw==1) { foundname=1; }
627: if (tw==2) { foundtype=1; }
628: if (tw==3) { foundstat=1; }
629: if (tw==4) { foundend=1; }
630: }
631: if (foundstart==0 && foundend==0 && foundtype==0 && foundname==0) {
632: alert('$error1');
633: return;
634: }
635: vf.submit();
636: }
637: function flip(vf,tf) {
638: }
639: ENDPICK
640: }
641:
642: sub csv_upload_map {
643: my ($r,$symb)= @_;
644:
645: my $datatoken;
646: if (!$env{'form.datatoken'}) {
647: $datatoken=&Apache::loncommon::upfile_store($r);
648: } else {
649: $datatoken=$env{'form.datatoken'};
650: &Apache::loncommon::load_tmp_file($r);
651: }
652: my @records=&Apache::loncommon::upfile_record_sep();
653: if ($env{'form.noFirstLine'}) { shift(@records); }
654: &csvuploadmap_header($r,$symb,$datatoken,$#records+1);
655: my ($i,$keyfields);
656: if (@records) {
657: my @fields=&csvupload_fields();
658:
659: if ($env{'form.upfile_associate'} eq 'reverse') {
660: &Apache::loncommon::csv_print_samples($r,\@records);
661: $i=&Apache::loncommon::csv_print_select_table($r,\@records,
662: \@fields);
663: foreach (@fields) { $keyfields.=$_->[0].','; }
664: chop($keyfields);
665: } else {
666: unshift(@fields,['none','']);
667: $i=&Apache::loncommon::csv_samples_select_table($r,\@records,
668: \@fields);
669: my %sone=&Apache::loncommon::record_sep($records[0]);
670: $keyfields=join(',',sort(keys(%sone)));
671: }
672: }
673: &csvuploadmap_footer($r,$i,$keyfields);
674:
675: return '';
676: }
677:
678: sub csvupload_fields {
679: return (['name','Slot name'],
680: ['type','Type of slot'],
681: ['starttime','Start Time of slot'],
682: ['endtime','End Time of slot'],
683: ['startreserve','Reservation Start Time'],
684: ['ip','IP or DNS restriction'],
685: ['proctor','List of proctor ids'],
686: ['description','Slot Description'],
687: ['maxspace','Maximum number of reservations'],
688: ['symb','Resource Restriction'],
689: ['uniqueperiod','Date range of slot exclusion'],
690: ['secret','Secret word proctor uses to validate']);
691: }
692:
693: sub csv_upload_assign {
694: my ($r,$symb)= @_;
695: &Apache::loncommon::load_tmp_file($r);
696: my @slotdata = &Apache::loncommon::upfile_record_sep();
697: if ($env{'form.noFirstLine'}) { shift(@slotdata); }
698: my %fields=&Apache::grades::get_fields();
699: $r->print('<h3>Creating Slots</h3>');
700: my $cname=$env{'course.'.$env{'request.course.id'}.'.num'};
701: my $cdom=$env{'course.'.$env{'request.course.id'}.'.domain'};
702: my $countdone=0;
703: foreach my $slot (@slotdata) {
704: my %slot;
705: my %entries=&Apache::loncommon::record_sep($slot);
706: my $domain;
707: my $name=$entries{$fields{'name'}};
708: if ($entries{$fields{'type'}}) {
709: $slot{'type'}=$entries{$fields{'type'}};
710: } else {
711: $slot{'type'}='preassigned';
712: }
713: if ($entries{$fields{'starttime'}}) {
714: $slot{'starttime'}=&UnixDate($entries{$fields{'starttime'}},"%s");
715: }
716: if ($entries{$fields{'endtime'}}) {
717: $slot{'endtime'}=&UnixDate($entries{$fields{'endtime'}},"%s");
718: }
719: foreach my $key ('ip','proctor','description','maxspace',
720: 'secret','symb') {
721: if ($entries{$fields{$key}}) {
722: $slot{$key}=$entries{$fields{$key}};
723: }
724: }
725: if ($entries{$fields{'uniqueperiod'}}) {
726: my ($start,$end)=split(',',$entries{$fields{'uniqueperiod'}});
727: my @times=(&UnixDate($start,"%s"),
728: &UnixDate($end,"%s"));
729: $slot{'uniqueperiod'}=\@times;
730: }
731:
732: &Apache::lonnet::cput('slots',{$name=>\%slot},$cdom,$cname);
733: $r->print('.');
734: $r->rflush();
735: $countdone++;
736: }
737: $r->print("<br />Created $countdone slots\n");
738: $r->print("<br />\n");
739: &show_table($r,$symb);
740: return '';
741: }
742:
743: sub handler {
744: my $r=shift;
745:
746: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'});
747: &start_page($r);
748: my $symb=&Apache::lonnet::unescape($env{'form.symb'});
749: my (undef,undef,$res)=&Apache::lonnet::decode_symb($symb);
750: if ($res !~ /\.task$/) {
751: &fail($r,'not_valid');
752: return OK;
753: }
754: $env{'request.symb'}=$symb;
755: my $vgr=&Apache::lonnet::allowed('vgr',$env{'request.course.id'});
756: my $mgr=&Apache::lonnet::allowed('mgr',$env{'request.course.id'});
757: if ($env{'form.command'} eq 'showslots' && $vgr eq 'F') {
758: &show_table($r,$symb,$mgr);
759: } elsif ($env{'form.command'} eq 'uploadstart' && $mgr eq 'F') {
760: &upload_start($r,$symb);
761: } elsif ($env{'form.command'} eq 'csvuploadmap' && $mgr eq 'F') {
762: &csv_upload_map($r,$symb);
763: } elsif ($env{'form.command'} eq 'csvuploadassign' && $mgr eq 'F') {
764: if ($env{'form.associate'} ne 'Reverse Association') {
765: &csv_upload_assign($r,$symb);
766: } else {
767: if ( $env{'form.upfile_associate'} ne 'reverse' ) {
768: $env{'form.upfile_associate'} = 'reverse';
769: } else {
770: $env{'form.upfile_associate'} = 'forward';
771: }
772: &csv_upload_map($r,$symb);
773: }
774: } else {
775: my ($status) = &Apache::lonhomework::check_task_access('0');
776: if ($status eq 'CAN_ANSWER' ||
777: $status eq 'NEEDS_CHECKIN' ||
778: $status eq 'WAITING_FOR_GRADE') {
779: &fail($r,'not_allowed');
780: return OK;
781: }
782: if ($env{'form.requestattempt'}) {
783: &show_choices($r,$symb);
784: } elsif ($env{'form.command'} eq 'release') {
785: &release_slot($r,$symb);
786: } elsif ($env{'form.command'} eq 'get') {
787: &get_slot($r,$symb);
788: } elsif ($env{'form.command'} eq 'change') {
789: &release_slot($r,$symb,$env{'form.releaseslot'},1);
790: &get_slot($r,$symb);
791: } else {
792: $r->print("<p>Unknown command: ".$env{'form.command'}."</p>");
793: }
794: }
795: &end_page($r);
796: return OK;
797: }
798:
799: 1;
800: __END__
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