Annotation of loncom/interface/slotrequest.pm, revision 1.58

1.1       albertel    1: # The LearningOnline Network with CAPA
                      2: # Handler for requesting to have slots added to a students record
                      3: #
1.58    ! albertel    4: # $Id: slotrequest.pm,v 1.57 2006/04/10 07:37:16 albertel Exp $
1.1       albertel    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;
1.48      albertel   37: use Apache::lonnavmaps();
1.27      albertel   38: use Date::Manip;
1.1       albertel   39: 
                     40: sub fail {
                     41:     my ($r,$code)=@_;
1.2       albertel   42:     if ($code eq 'not_valid') {
1.8       albertel   43: 	$r->print('<p>'.&mt('Unable to understand what resource you wanted to sign up for.').'</p>');
1.2       albertel   44: 
1.8       albertel   45:     } elsif ($code eq 'not_allowed') {
                     46: 	$r->print('<p>'.&mt('Not allowed to sign up or change reservations at this time.').'</p>');
                     47:     } else {
                     48: 	$r->print('<p>'.&mt('Failed.').'</p>');
1.2       albertel   49:     }
1.8       albertel   50:     
1.42      albertel   51:     &return_link($r);
1.1       albertel   52:     &end_page($r);
                     53: }
                     54: 
                     55: sub start_page {
1.28      albertel   56:     my ($r,$title)=@_;
1.52      albertel   57:     $r->print(&Apache::loncommon::start_page($title));
1.1       albertel   58: }
                     59: 
                     60: sub end_page {
                     61:     my ($r)=@_;
1.52      albertel   62:     $r->print(&Apache::loncommon::end_page());
1.1       albertel   63: }
                     64: 
1.2       albertel   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: 				       "^$slot_name\0");
1.40      albertel   90:     if (&network_error(%consumed)) { 
                     91: 	return 'error: Unable to determine current status';
                     92:     }
1.2       albertel   93:     my ($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 < $max) {
                    108: 	return 1
                    109:     }
                    110:     return 0;
                    111: }
1.3       albertel  112: 
1.4       albertel  113: sub check_for_reservation {
1.43      albertel  114:     my ($symb,$mode)=@_;
1.4       albertel  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, $cnum);
                    126: 
1.41      albertel  127:     if (&network_error($student) || &network_error($course)  ||
                    128: 	&network_error(%slots)) {
                    129: 	return 'error: Unable to determine current status';
                    130:     }    
1.43      albertel  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) {
1.4       albertel  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'});
1.7       albertel  145: 	if ($slots{$slot_name}->{'endtime'} > time &&
1.4       albertel  146: 	    $slots{$slot_name}->{'startreserve'} < time) {
1.7       albertel  147: 	    # between start of reservation times and end of slot
1.43      albertel  148: 	    if ($mode eq 'allslots') {
                    149: 		push(@got,$slot_name);
                    150: 	    } else {
                    151: 		return($slot_name, $slots{$slot_name});
                    152: 	    }
1.4       albertel  153: 	}
                    154:     }
1.43      albertel  155:     if ($mode eq 'allslots' && @got) {
                    156: 	return @got;
                    157:     }
1.4       albertel  158:     return (undef,undef);
                    159: }
                    160: 
1.48      albertel  161: sub get_consumed_uniqueperiods {
                    162:     my ($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:     }
1.43      albertel  182: 
                    183:     if (!ref($slots)) {
1.48      albertel  184: 	my ($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: 	}
1.43      albertel  189: 	$slots = \%slots;
                    190:     }
1.41      albertel  191: 
1.48      albertel  192:     my %consumed_uniqueperiods;
                    193:     foreach my $slot_name (keys(%used_slots)) {
1.43      albertel  194: 	next if (!defined($slots->{$slot_name}) ||
                    195: 		 !ref($slots->{$slot_name}));
1.48      albertel  196: 	
1.43      albertel  197:         next if (!defined($slots->{$slot_name}{'uniqueperiod'}) ||
                    198: 		 !ref($slots->{$slot_name}{'uniqueperiod'}));
1.48      albertel  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}};
1.43      albertel  220: 	if (!
                    221: 	    ($start < $new_uniq_start &&  $end < $new_uniq_start) ||
                    222: 	    ($start > $new_uniq_end   &&  $end > $new_uniq_end  )) {
1.5       albertel  223: 	    return $slot_name;
                    224: 	}
                    225:     }
                    226:     return undef;
                    227: 
                    228: }
                    229: 
1.40      albertel  230: sub network_error {
                    231:     my ($result) = @_;
                    232:     if ($result =~ /^(con_lost|no_such_host|error: [^2])/) {
                    233: 	return 1;
                    234:     }
                    235:     return 0;
                    236: }
                    237: 
1.2       albertel  238: sub make_reservation {
                    239:     my ($slot_name,$slot,$symb)=@_;
1.3       albertel  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  $value<br />");
1.40      albertel  246:     if (&network_error($value)) { 
                    247: 	return 'error: Unable to determine current status';
                    248:     }
                    249: 
1.3       albertel  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");   
1.40      albertel  254: 	    if (&network_error($value)) { 
                    255: 		return 'error: Unable to determine current status';
                    256: 	    }
1.57      albertel  257: 	    my $me=$env{'user.name'}.':'.$env{'user.domain'};
1.3       albertel  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: 
1.2       albertel  267:     my $max=$slot->{'maxspace'};
1.3       albertel  268:     if (!defined($max)) { $max=99999; }
1.2       albertel  269: 
                    270:     my (@ids)=&get_reservation_ids($slot_name);
1.40      albertel  271:     if (&network_error(@ids)) { 
                    272: 	return 'error: Unable to determine current status';
                    273:     }
1.2       albertel  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;
1.3       albertel  281:     &Apache::lonxml::debug("wanted $wanted<br />");
1.7       albertel  282:     if (scalar(@ids) >= $max) {
1.2       albertel  283: 	# full up
1.7       albertel  284: 	return undef;
1.2       albertel  285:     }
                    286:     
1.57      albertel  287:     my %reservation=('name'      => $env{'user.name'}.':'.$env{'user.domain'},
1.2       albertel  288: 		     'timestamp' => time,
                    289: 		     'symb'      => $symb);
                    290: 
                    291:     my $success=&Apache::lonnet::newput('slot_reservations',
                    292: 					{"$slot_name\0$wanted" =>
                    293: 					     \%reservation},
1.3       albertel  294: 					$cdom, $cnum);
                    295: 
1.2       albertel  296:     if ($success eq 'ok') {
1.3       albertel  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");
1.2       albertel  307: 	return $wanted;
                    308:     }
1.3       albertel  309: 
1.2       albertel  310:     # someone else got it
1.3       albertel  311:     return undef;
                    312: }
                    313: 
1.33      albertel  314: sub remove_registration {
                    315:     my ($r) = @_;
1.55      albertel  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: 
1.33      albertel  347:     my $name = &Apache::loncommon::plainname($env{'form.uname'},
                    348: 					     $env{'form.udom'});
                    349: 
                    350:     my $title = &Apache::lonnet::gettitle($env{'form.symb'});
                    351: 
1.55      albertel  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: 
1.33      albertel  362:     my $hidden_input;
1.55      albertel  363:     foreach my $parm (@{$inputs}) {
1.33      albertel  364: 	$hidden_input .=
                    365: 	    '<input type="hidden" name="'.$parm.'" value="'
                    366: 	    .&HTML::Entities::encode($env{'form.'.$parm},'"<>&\'').'" />'."\n";
                    367:     }
1.55      albertel  368:     my %lt = &Apache::lonlocal::texthash('yes' => 'Yes',
                    369: 					 'no'  => 'No',);
1.33      albertel  370:     $r->print(<<"END_CONFIRM");
1.55      albertel  371: <p> $msg </p>
1.33      albertel  372: <form action="/adm/slotrequest" method="POST">
                    373:     <input type="hidden" name="command" value="release" />
1.55      albertel  374:     <input type="hidden" name="button" value="yes" />
1.33      albertel  375:     $hidden_input
1.55      albertel  376:     <input type="submit" value="$lt{'yes'}" />
1.33      albertel  377: </form>
                    378: <form action="/adm/slotrequest" method="POST">
                    379:     <input type="hidden" name="command" value="showslots" />
1.55      albertel  380:     <input type="submit" value="$lt{'no'}" />
1.33      albertel  381: </form>
                    382: END_CONFIRM
                    383: 
                    384: }
                    385: 
1.55      albertel  386: sub release_all_slot {
                    387:     my ($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))) {
1.57      albertel  400: 	my ($uname,$udom) = split(':',$consumed{$entry}{'name'});
1.55      albertel  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: 
1.5       albertel  412: sub release_slot {
1.33      albertel  413:     my ($r,$symb,$slot_name,$inhibit_return_link,$mgr)=@_;
1.6       albertel  414: 
                    415:     if ($slot_name eq '') { $slot_name=$env{'form.slotname'}; }
                    416: 
1.33      albertel  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 = $env{'form.symb'};
                    426:     }
1.55      albertel  427: 
                    428:     my ($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) = @_;
1.39      albertel  443:     my %slot=&Apache::lonnet::get_slot($slot_name);
1.55      albertel  444:     my $description=&get_description($slot_name,\%slot);
1.33      albertel  445: 
1.39      albertel  446:     if ($mgr ne 'F') {
1.43      albertel  447: 	if ($slot{'starttime'} < time) {
1.55      albertel  448: 	    return (0,&mt('Not allowed to release Reservation: [_1], as it has already ended.',$description));
1.39      albertel  449: 	}
                    450:     }
1.5       albertel  451:     # get parameter string, check for existance, rebuild string with the slot
1.6       albertel  452:     my @slots = split(/:/,&Apache::lonnet::EXT("resource.0.availablestudent",
1.33      albertel  453: 					       $symb,$udom,$uname));
                    454: 
1.6       albertel  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 $new_param = join(':',@new_slots);
1.5       albertel  461: 
1.55      albertel  462:     my ($cnum,$cdom)=&get_course();
                    463: 
1.5       albertel  464:     # get slot reservations, check if user has one, if so remove reservation
1.6       albertel  465:     my %consumed=&Apache::lonnet::dump('slot_reservations',$cdom,$cnum,
                    466: 				       "^$slot_name\0");
                    467:     foreach my $entry (keys(%consumed)) {
1.57      albertel  468: 	if ( $consumed{$entry}->{'name'} eq ($uname.':'.$udom) ) {
1.6       albertel  469: 	    &Apache::lonnet::del('slot_reservations',[$entry],
                    470: 				 $cdom,$cnum);
                    471: 	}
                    472:     }
1.33      albertel  473: 
1.5       albertel  474:     # store new parameter string
1.6       albertel  475:     my $result=&Apache::lonparmset::storeparm_by_symb($symb,
                    476: 						      '0_availablestudent',
                    477: 						      1, $new_param, 'string',
1.33      albertel  478: 						      $uname,$udom);
1.55      albertel  479: 
                    480:     my $msg;
1.33      albertel  481:     if ($mgr eq 'F') {
1.55      albertel  482: 	$msg = &mt('Released Reservation for user: [_1]',"$uname:$udom");
                    483:     } else {
                    484: 	$msg = &mt('Released Reservation: [_1]',$description);
1.33      albertel  485:     }
1.55      albertel  486:     return (1,$msg);
1.5       albertel  487: }
                    488: 
1.34      albertel  489: sub delete_slot {
                    490:     my ($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: 				       "^$slot_name\0");
1.38      albertel  498:     my ($tmp) = %consumed;
                    499:     if ($tmp =~ /error: 2/) { undef(%consumed); }
1.34      albertel  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:     $r->print('<p><a href="/adm/slotrequest?command=showslots">'.
                    518: 	      &mt('Return to slot list').'</a></p>');
1.42      albertel  519:     &return_link($r);
1.34      albertel  520: }
                    521: 
1.40      albertel  522: sub return_link {
                    523:     my ($r) = @_;
                    524:     $r->print('<p><a href="/adm/flip?postdata=return:">'.
                    525: 	      &mt('Return to last resource').'</a></p>');
                    526: }
                    527: 
1.3       albertel  528: sub get_slot {
                    529:     my ($r,$symb)=@_;
                    530: 
1.43      albertel  531:     my %slot=&Apache::lonnet::get_slot($env{'form.slotname'});
                    532:     my $slot_name=&check_for_conflict($symb,$env{'form.slotname'},\%slot);
1.40      albertel  533: 
                    534:     if ($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:     }
1.5       albertel  539:     if ($slot_name) {
                    540: 	my %slot=&Apache::lonnet::get_slot($slot_name);
1.6       albertel  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: $description1</p>");
1.7       albertel  545: 	if ($slot_name ne $env{'form.slotname'}) {
                    546: 	    $r->print(<<STUFF);
1.6       albertel  547: <form method="POST" action="/adm/slotrequest">
                    548:    <input type="hidden" name="symb" value="$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
1.7       albertel  553:             $r->print("<p>You can either ");
                    554: 	    $r->print(<<STUFF);
1.6       albertel  555:    <input type="submit" name="change" value="Change" />
                    556: STUFF
1.7       albertel  557: 	    $r->print(' your reservation from <b>'.$description1.'</b> to <b>'.
                    558: 		      $description2.
1.40      albertel  559: 		      '</b> <br />or </p>');
                    560: 	    &return_link($r);
1.7       albertel  561: 	    $r->print(<<STUFF);
1.6       albertel  562: </form>
                    563: STUFF
1.7       albertel  564:         } else {
1.40      albertel  565: 	    &return_link($r);
1.7       albertel  566: 	}
1.5       albertel  567: 	return;
                    568:     }
1.45      albertel  569: 
1.3       albertel  570:     my $reserved=&make_reservation($env{'form.slotname'},
                    571: 				   \%slot,$symb);
                    572:     my $description=&get_description($env{'form.slotname'},\%slot);
1.7       albertel  573:     if (defined($reserved)) {
1.40      albertel  574: 	if ($slot_name =~ /^error: (.*)/) {
                    575: 	    $r->print("<p>An error occured while attempting to make a reservation. ($1)</p>");
                    576: 	} elsif ($reserved > -1) {
1.7       albertel  577: 	    $r->print("<p>Success: $description</p>");
                    578: 	} elsif ($reserved < 0) {
                    579: 	    $r->print("<p>Already reserved: $description</p>");
                    580: 	}
1.40      albertel  581: 	&return_link($r);
                    582: 	return;
1.3       albertel  583:     }
                    584: 
1.7       albertel  585:     my %lt=('request'=>"Availibility list",
1.3       albertel  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
1.42      albertel  609: 
                    610:     &return_link($r);
1.3       albertel  611:     return;
                    612: }
                    613: 
                    614: sub allowed_slot {
1.48      albertel  615:     my ($slot_name,$slot,$symb,$slots,$consumed_uniqueperiods)=@_;
1.49      albertel  616: 
1.3       albertel  617:     #already started
                    618:     if ($slot->{'starttime'} < time) {
1.5       albertel  619: 	# all open slot to be schedulable
                    620: 	#return 0;
1.3       albertel  621:     }
1.5       albertel  622:     &Apache::lonxml::debug("$slot_name starttime good");
1.49      albertel  623: 
1.3       albertel  624:     #already ended
                    625:     if ($slot->{'endtime'} < time) {
                    626: 	return 0;
                    627:     }
1.5       albertel  628:     &Apache::lonxml::debug("$slot_name endtime good");
1.49      albertel  629: 
1.3       albertel  630:     # not allowed to pick this one
                    631:     if (defined($slot->{'type'})
                    632: 	&& $slot->{'type'} ne 'schedulable_student') {
                    633: 	return 0;
                    634:     }
1.5       albertel  635:     &Apache::lonxml::debug("$slot_name type good");
1.49      albertel  636: 
1.53      albertel  637:     # reserve time not yet started
                    638:     if ($slot->{'startreserve'} > time) {
                    639: 	return 0;
                    640:     }
                    641:     &Apache::lonxml::debug("$slot_name reserve good");
                    642: 
1.50      albertel  643:     my $userallowed=0;
1.49      albertel  644:     # its for a different set of users
1.50      albertel  645:     if (defined($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: 	    $userallowed=1;
                    655: 	}
1.49      albertel  656:     }
1.50      albertel  657:     &Apache::lonxml::debug("$slot_name sections is $userallowed");
1.49      albertel  658: 
                    659:     # its for a different set of users
1.50      albertel  660:     if (defined($slot->{'allowedusers'})
                    661: 	&& grep(/^\Q$env{'user.name'}:$env{'user.domain'}\E$/,
                    662: 		split(',',$slot->{'allowedusers'}))) {
                    663: 	$userallowed=1;
1.49      albertel  664:     }
1.51      albertel  665: 
                    666:     if (!defined($slot->{'allowedusers'})
                    667: 	&& !defined($slot->{'allowedsections'})) {
                    668: 	$userallowed=1;
                    669:     }
                    670: 
1.50      albertel  671:     &Apache::lonxml::debug("$slot_name user is $userallowed");
                    672:     return 0 if (!$userallowed);
1.49      albertel  673: 
1.3       albertel  674:     # not allowed for this resource
                    675:     if (defined($slot->{'symb'})
                    676: 	&& $slot->{'symb'} ne $symb) {
                    677: 	return 0;
                    678:     }
1.50      albertel  679: 
1.48      albertel  680:     my $conflict = &check_for_conflict($symb,$slot_name,$slot,$slots,
                    681: 				       $consumed_uniqueperiods);
1.44      albertel  682:     if ($conflict) {
                    683: 	if ($slots->{$conflict}{'starttime'} < time) {
                    684: 	    return 0;
                    685: 	}
                    686:     }
1.5       albertel  687:     &Apache::lonxml::debug("$slot_name symb good");
1.3       albertel  688:     return 1;
1.2       albertel  689: }
                    690: 
1.3       albertel  691: sub get_description {
                    692:     my ($slot_name,$slot)=@_;
                    693:     my $description=$slot->{'description'};
                    694:     if (!defined($description)) {
1.4       albertel  695: 	$description=&mt('[_1] From [_2] to [_3]',$slot_name,
1.3       albertel  696: 			 &Apache::lonlocal::locallocaltime($slot->{'starttime'}),
                    697: 			 &Apache::lonlocal::locallocaltime($slot->{'endtime'}));
                    698:     }
                    699:     return $description;
                    700: }
1.2       albertel  701: 
                    702: sub show_choices {
                    703:     my ($r,$symb)=@_;
                    704: 
                    705:     my ($cnum,$cdom)=&get_course();
                    706:     my %slots=&Apache::lonnet::dump('slots',$cdom,$cnum);
1.48      albertel  707:     my $consumed_uniqueperiods = &get_consumed_uniqueperiods(\%slots);
1.3       albertel  708:     my $available;
1.2       albertel  709:     $r->print('<table border="1">');
1.5       albertel  710:     &Apache::lonxml::debug("Checking Slots");
1.43      albertel  711:     my @got_slots=&check_for_reservation($symb,'allslots');
1.2       albertel  712:     foreach my $slot (sort 
                    713: 		      { return $slots{$a}->{'starttime'} <=> $slots{$b}->{'starttime'} }
                    714: 		      (keys(%slots)))  {
1.5       albertel  715: 
                    716: 	&Apache::lonxml::debug("Checking Slot $slot");
1.48      albertel  717: 	next if (!&allowed_slot($slot,$slots{$slot},undef,\%slots,
                    718: 				$consumed_uniqueperiods));
1.3       albertel  719: 
                    720: 	$available++;
                    721: 
                    722: 	my $description=&get_description($slot,$slots{$slot});
1.2       albertel  723: 
                    724: 	my $form=&mt('Unavailable');
1.43      albertel  725: 	if ((grep(/^\Q$slot\E$/,@got_slots)) ||
1.7       albertel  726: 	    &space_available($slot,$slots{$slot},$symb)) {
1.5       albertel  727: 	    my $text=&mt('Select');
                    728: 	    my $command='get';
1.43      albertel  729: 	    if (grep(/^\Q$slot\E$/,@got_slots)) {
1.5       albertel  730: 		$text=&mt('Free Reservation');
                    731: 		$command='release';
1.43      albertel  732: 	    } else {
                    733: 		my $conflict = &check_for_conflict($symb,$slot,$slots{$slot},
1.48      albertel  734: 						   \%slots,
                    735: 						   $consumed_uniqueperiods);
1.43      albertel  736: 		if ($conflict) {
                    737: 		    $text=&mt('Change Reservation');
                    738: 		    $command='get';
                    739: 		}
1.5       albertel  740: 	    }
1.3       albertel  741: 	    my $escsymb=&Apache::lonnet::escape($symb);
1.2       albertel  742: 	    $form=<<STUFF;
1.3       albertel  743:    <form method="POST" action="/adm/slotrequest">
1.5       albertel  744:      <input type="submit" name="Select" value="$text" />
1.3       albertel  745:      <input type="hidden" name="symb" value="$escsymb" />
                    746:      <input type="hidden" name="slotname" value="$slot" />
1.5       albertel  747:      <input type="hidden" name="command" value="$command" />
1.2       albertel  748:    </form>
                    749: STUFF
                    750: 	}
                    751: 	$r->print(<<STUFF);
                    752: <tr>
                    753:  <td>$form</td>
                    754:  <td>$description</td>
                    755: </tr>
                    756: STUFF
                    757:     }
1.3       albertel  758: 
                    759:     if (!$available) {
1.5       albertel  760: 	$r->print('<tr><td>No available times. <a href="/adm/flip?postdata=return:">'.
1.3       albertel  761: 		  &mt('Return to last resource').'</a></td></tr>');
                    762:     }
1.2       albertel  763:     $r->print('</table>');
                    764: }
                    765: 
1.30      albertel  766: sub to_show {
1.54      albertel  767:     my ($slotname,$slot,$when,$deleted,$name) = @_;
1.30      albertel  768:     my $time=time;
                    769:     my $week=60*60*24*7;
1.54      albertel  770: 
1.35      albertel  771:     if ($deleted eq 'hide' && $slot->{'type'} eq 'deleted') {
                    772: 	return 0;
                    773:     }
1.54      albertel  774: 
                    775:     if ($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 $name->{'value'}) {
                    783: 		return 0;
                    784: 	    }
                    785: 	}
                    786:     }
                    787: 
1.35      albertel  788:     if ($when eq 'any') {
                    789: 	return 1;
                    790:     } elsif ($when eq 'now') {
1.30      albertel  791: 	if ($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 > $slot->{'endtime'}) {
                    821: 	    return 1;
                    822: 	}
                    823: 	return 0;
                    824:     }
                    825:     
                    826:     return 1;
                    827: }
                    828: 
1.33      albertel  829: sub remove_link {
                    830:     my ($slotname,$entry,$uname,$udom,$symb) = @_;
                    831: 
1.55      albertel  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: 
1.33      albertel  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: 
1.5       albertel  853: sub show_table {
1.19      albertel  854:     my ($r,$mgr)=@_;
1.5       albertel  855: 
                    856:     my ($cnum,$cdom)=&get_course();
                    857:     my %slots=&Apache::lonnet::dump('slots',$cdom,$cnum);
1.19      albertel  858:     if ( (keys(%slots))[0] =~ /^error: 2 /) {
                    859: 	undef(%slots);
                    860:     } 
1.5       albertel  861:     my $available;
1.14      albertel  862:     if ($mgr eq 'F') {
1.30      albertel  863: 	$r->print('<div>');
1.14      albertel  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>');
1.28      albertel  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>');
1.30      albertel  871: 	$r->print('</div>');
1.14      albertel  872:     }
1.29      albertel  873:     
1.54      albertel  874:     my %Saveable_Parameters = ('show'              => 'array',
                    875: 			       'when'              => 'scalar',
                    876: 			       'order'             => 'scalar',
                    877: 			       'deleted'           => 'scalar',
                    878: 			       'name_filter_type'  => 'scalar',
                    879: 			       'name_filter_value' => 'scalar',
1.35      albertel  880: 			       );
1.46      albertel  881:     &Apache::loncommon::store_course_settings('slotrequest',
                    882: 					      \%Saveable_Parameters);
                    883:     &Apache::loncommon::restore_course_settings('slotrequest',
                    884: 						\%Saveable_Parameters);
                    885:     &Apache::grades::init_perm();
                    886:     my ($classlist,$section,$fullname)=&Apache::grades::getclasslist('all');
                    887:     &Apache::grades::reset_perm();
1.29      albertel  888: 
1.54      albertel  889:     # what to display filtering
1.30      albertel  890:     my %show_fields=&Apache::lonlocal::texthash(
1.49      albertel  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');
1.30      albertel  906:     my @show_order=('name','description','type','starttime','endtime',
1.49      albertel  907: 		    'startreserve','secret','maxspace','ip','symb',
                    908: 		    'allowedsections','allowedusers','uniqueperiod',
                    909: 		    'scheduled','proctor');
1.30      albertel  910:     my @show = 
1.29      albertel  911: 	(exists($env{'form.show'})) ? &Apache::loncommon::get_env_multiple('form.show')
1.30      albertel  912: 	                            : keys(%show_fields);
                    913:     my %show =  map { $_ => 1 } (@show);
                    914: 
1.54      albertel  915:     #when filtering setup
1.30      albertel  916:     my %when_fields=&Apache::lonlocal::texthash(
1.35      albertel  917: 	     'now'      => 'Open now',
1.30      albertel  918: 	     'nextweek' => 'Open within the next week',
                    919: 	     'lastweek' => 'Were open last week',
                    920: 	     'willopen' => 'Will open later',
1.35      albertel  921: 	     'wereopen' => 'Were open',
                    922: 	     'any'      => 'Anytime',
                    923: 						);
                    924:     my @when_order=('any','now','nextweek','lastweek','willopen','wereopen');
1.30      albertel  925:     $when_fields{'select_form_order'} = \@when_order;
                    926:     my $when = 	(exists($env{'form.when'})) ? $env{'form.when'}
                    927:                                             : 'now';
1.29      albertel  928: 
1.54      albertel  929:     #display of students setup
1.46      albertel  930:     my %stu_display_fields=
                    931: 	&Apache::lonlocal::texthash('username' => 'User name',
                    932: 				    'fullname' => 'Full name',
                    933: 				    );
                    934:     my @stu_display_order=('fullname','username');
                    935:     my @stu_display = 
                    936: 	(exists($env{'form.studisplay'})) ? &Apache::loncommon::get_env_multiple('form.studisplay')
                    937: 	                                  : keys(%stu_display_fields);
                    938:     my %stu_display =  map { $_ => 1 } (@stu_display);
                    939: 
1.54      albertel  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
1.35      albertel  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: 	
1.29      albertel  961:     $r->print('<form method="POST" action="/adm/slotrequest">
1.30      albertel  962: <input type="hidden" name="command" value="showslots" />');
                    963:     $r->print('<div>');
1.35      albertel  964:     $r->print('<table class="inline">
                    965:       <tr><th>'.&mt('Show').'</th>
1.46      albertel  966:           <th>'.&mt('Student Display').'</th>
1.35      albertel  967:           <th>'.&mt('Open').'</th>
1.54      albertel  968:           <th>'.&mt('Slot Name Filter').'</th>
1.35      albertel  969:           <th>'.&mt('Options').'</th>
                    970:       </tr>
                    971:       <tr><td>'.&Apache::loncommon::multiple_select_form('show',\@show,6,\%show_fields,\@show_order).
                    972: 	      '</td>
1.46      albertel  973:            <td>
                    974:          '.&Apache::loncommon::multiple_select_form('studisplay',\@stu_display,
                    975: 						    6,\%stu_display_fields,
                    976: 						    \@stu_display_order).'
                    977:            </td>
1.35      albertel  978:            <td>'.&Apache::loncommon::select_form($when,'when',%when_fields).
                    979:           '</td>
1.54      albertel  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: 					      $env{'form.name_filter_value'},
                    986: 					      15).
                    987:           '</td>
1.35      albertel  988:            <td>
                    989:             <table>
                    990:               <tr>
                    991:                 <td rowspan="2">Deleted slots:</td>
                    992:                 <td><label>'.$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>');
1.30      albertel 1001:     $r->print('</div>');
                   1002:     $r->print('<p><input type="submit" name="start" value="'.&mt('Update Display').'" /></p>');
1.21      albertel 1003:     my $linkstart='<a href="/adm/slotrequest?command=showslots&amp;order=';
1.30      albertel 1004:     $r->print('<table class="thinborder">
1.10      albertel 1005: <tr>
1.29      albertel 1006:   <th></th>');
1.30      albertel 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>');
1.29      albertel 1010: 	}
                   1011:     }
                   1012: 
1.21      albertel 1013:     my %name_cache;
                   1014:     my $slotsort = sub {
1.49      albertel 1015: 	if ($env{'form.order'}=~/^(type|description|endtime|startreserve|maxspace|ip|symb|allowedsections|allowedusers)$/) {
1.21      albertel 1016: 	    if (lc($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}->{$env{'form.order'}}));
                   1020: 	    }
1.23      albertel 1021: 	} elsif ($env{'form.order'} eq 'name') {
                   1022: 	    if (lc($a) cmp lc($b)) {
                   1023: 		return lc($a) cmp lc($b);
                   1024: 	    }
1.29      albertel 1025: 	} elsif ($env{'form.order'} eq 'uniqueperiod') {
1.21      albertel 1026: 	    
                   1027: 	    if ($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 $slotsort (keys(%slots)))  {
1.54      albertel 1041: 	if (!&to_show($slot,$slots{$slot},$when,
                   1042: 		      $env{'form.deleted'},$name_filter)) { next; }
1.5       albertel 1043: 	if (defined($slots{$slot}->{'type'})
                   1044: 	    && $slots{$slot}->{'type'} ne 'schedulable_student') {
1.13      albertel 1045: 	    #next;
1.5       albertel 1046: 	}
                   1047: 	my $description=&get_description($slot,$slots{$slot});
                   1048: 	my $ids;
1.47      albertel 1049: 	if (exists($show{'scheduled'})) {
                   1050: 	    my %consumed=&Apache::lonnet::dump('slot_reservations',$cdom,$cnum,
                   1051: 					       "^$slot\0");
                   1052: 	    my ($tmp)=%consumed;
                   1053: 	    if ($tmp !~ /^error: /) {
1.54      albertel 1054: 		foreach my $entry (sort { $consumed{$a}{name} cmp 
                   1055: 					      $consumed{$b}{name} }
                   1056: 				   (keys(%consumed))) {
1.47      albertel 1057: 		    my (undef,$id)=split("\0",$entry);
1.57      albertel 1058: 		    my ($uname,$udom) = split(':',$consumed{$entry}{'name'});
1.47      albertel 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') {
1.57      albertel 1065: 				$ids.="<tt>$uname:$udom</tt> ";
1.47      albertel 1066: 			    }
1.46      albertel 1067: 			}
                   1068: 		    }
1.47      albertel 1069: 		    $ids.=&remove_link($slot,$entry,$uname,$udom,
                   1070: 				       $consumed{$entry}{'symb'}).'</nobr><br />';
1.46      albertel 1071: 		}
1.38      albertel 1072: 	    }
1.5       albertel 1073: 	}
1.33      albertel 1074: 
1.24      albertel 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'}):'');
1.28      albertel 1079: 	my $start_reserve=($slots{$slot}->{'startreserve'}?
1.24      albertel 1080: 			   &Apache::lonlocal::locallocaltime($slots{$slot}->{'startreserve'}):'');
                   1081: 	
1.14      albertel 1082: 	my $unique;
                   1083: 	if (ref($slots{$slot}{'uniqueperiod'})) {
                   1084: 	    $unique=localtime($slots{$slot}{'uniqueperiod'}[0]).','.
                   1085: 		localtime($slots{$slot}{'uniqueperiod'}[1]);
                   1086: 	}
1.33      albertel 1087: 
1.29      albertel 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: 	}
1.33      albertel 1096: 
1.49      albertel 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/&nbsp;/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: 	
1.29      albertel 1119: 	my @proctors;
                   1120: 	my $rowspan=1;
                   1121: 	my $colspan=1;
1.30      albertel 1122: 	if (exists($show{'proctor'})) {
1.29      albertel 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/&nbsp;/g;
                   1130: 		    $name_cache{$_} = $fullname;
                   1131: 		}
                   1132: 		&Apache::loncommon::aboutmewrapper($fullname,$uname,$udom);
                   1133: 	    } (sort(split(/\s*,\s*/,$slots{$slot}->{'proctor'})));
                   1134: 	}
1.20      albertel 1135: 	my $proctors=join(', ',@proctors);
1.14      albertel 1136: 
1.34      albertel 1137: 	my $edit=(<<"EDITLINK");
1.31      albertel 1138: <a href="/adm/helper/newslot.helper?name=$slot">Edit</a>
                   1139: EDITLINK
1.34      albertel 1140: 
                   1141: 	my $delete=(<<"DELETELINK");
                   1142: <a href="/adm/slotrequest?command=delete&slotname=$slot">Delete</a>
                   1143: DELETELINK
1.55      albertel 1144: 
1.56      albertel 1145:         my $remove_all=&remove_link($slot,'remove all').'<br />';
1.55      albertel 1146: 
1.34      albertel 1147:         if ($ids ne '') { undef($delete); }
1.56      albertel 1148: 	if ($slots{$slot}{'type'} ne 'schedulable_student' 
                   1149: 	    || $ids eq '') { 
1.55      albertel 1150: 	    undef($remove_all);
                   1151: 	}
1.34      albertel 1152: 
1.56      albertel 1153:         $r->print("<tr>\n<td rowspan=\"$rowspan\">$edit $delete</td>\n");
1.30      albertel 1154: 	if (exists($show{'name'})) {
1.29      albertel 1155: 	    $colspan++;$r->print("<td>$slot</td>");
                   1156: 	}
1.33      albertel 1157: 	if (exists($show{'description'})) {
                   1158: 	    $colspan++;$r->print("<td>$description</td>\n");
                   1159: 	}
1.30      albertel 1160: 	if (exists($show{'type'})) {
1.29      albertel 1161: 	    $colspan++;$r->print("<td>$slots{$slot}->{'type'}</td>\n");
                   1162: 	}
1.30      albertel 1163: 	if (exists($show{'starttime'})) {
1.29      albertel 1164: 	    $colspan++;$r->print("<td>$start</td>\n");
                   1165: 	}
1.30      albertel 1166: 	if (exists($show{'endtime'})) {
1.29      albertel 1167: 	    $colspan++;$r->print("<td>$end</td>\n");
                   1168: 	}
1.30      albertel 1169: 	if (exists($show{'startreserve'})) {
1.29      albertel 1170: 	    $colspan++;$r->print("<td>$start_reserve</td>\n");
                   1171: 	}
1.30      albertel 1172: 	if (exists($show{'secret'})) {
1.29      albertel 1173: 	    $colspan++;$r->print("<td>$slots{$slot}{'secret'}</td>\n");
                   1174: 	}
1.30      albertel 1175: 	if (exists($show{'maxspace'})) {
1.29      albertel 1176: 	    $colspan++;$r->print("<td>$slots{$slot}{'maxspace'}</td>\n");
                   1177: 	}
1.30      albertel 1178: 	if (exists($show{'ip'})) {
1.29      albertel 1179: 	    $colspan++;$r->print("<td>$slots{$slot}{'ip'}</td>\n");
                   1180: 	}
1.30      albertel 1181: 	if (exists($show{'symb'})) {
1.29      albertel 1182: 	    $colspan++;$r->print("<td>$title</td>\n");
                   1183: 	}
1.49      albertel 1184: 	if (exists($show{'allowedsections'})) {
                   1185: 	    $colspan++;$r->print("<td>$allowedsections</td>\n");
                   1186: 	}
                   1187: 	if (exists($show{'allowedusers'})) {
                   1188: 	    $colspan++;$r->print("<td>$allowedusers</td>\n");
1.29      albertel 1189: 	}
1.47      albertel 1190: 	if (exists($show{'scheduled'})) {
1.56      albertel 1191: 	    $colspan++;$r->print("<td>$remove_all $ids</td>\n</tr>\n");
1.47      albertel 1192: 	}
1.30      albertel 1193: 	if (exists($show{'proctor'})) {
1.29      albertel 1194: 	    $r->print(<<STUFF);
1.21      albertel 1195: <tr>
1.29      albertel 1196:  <td colspan="$colspan">$proctors</td>
1.21      albertel 1197: </tr>
1.5       albertel 1198: STUFF
1.29      albertel 1199:         }
1.5       albertel 1200:     }
                   1201:     $r->print('</table>');
                   1202: }
                   1203: 
1.14      albertel 1204: sub upload_start {
1.19      albertel 1205:     my ($r)=@_;    
1.14      albertel 1206:     $r->print(&Apache::grades::checkforfile_js());
                   1207:     my $result.='<table width=100% border=0><tr bgcolor="#e6ffff"><td>'."\n";
                   1208:     $result.='&nbsp;<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 {
1.19      albertel 1228:     my ($r,$datatoken,$distotal)= @_;
1.14      albertel 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 {
1.19      albertel 1326:     my ($r)= @_;
1.14      albertel 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); }
1.19      albertel 1337:     &csvuploadmap_header($r,$datatoken,$#records+1);
1.14      albertel 1338:     my ($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'],
1.15      albertel 1366: 	    ['startreserve','Reservation Start Time'],
1.14      albertel 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'],
1.49      albertel 1373: 	    ['secret','Secret word proctor uses to validate'],
                   1374: 	    ['allowedsections','Sections slot is restricted to'],
                   1375: 	    ['allowedusers','Users slot is restricted to'],
                   1376: 	    );
1.14      albertel 1377: }
                   1378: 
                   1379: sub csv_upload_assign {
1.19      albertel 1380:     my ($r,$mgr)= @_;
1.14      albertel 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;
1.31      albertel 1389:     my @errors;
1.14      albertel 1390:     foreach my $slot (@slotdata) {
                   1391: 	my %slot;
                   1392: 	my %entries=&Apache::loncommon::record_sep($slot);
                   1393: 	my $domain;
                   1394: 	my $name=$entries{$fields{'name'}};
1.31      albertel 1395: 	if ($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,"$name not created -- Name must contain only letters, numbers and _");
                   1405: 	    next;
                   1406: 	}
1.14      albertel 1407: 	if ($entries{$fields{'type'}}) {
                   1408: 	    $slot{'type'}=$entries{$fields{'type'}};
                   1409: 	} else {
                   1410: 	    $slot{'type'}='preassigned';
                   1411: 	}
1.31      albertel 1412: 	if ($slot{'type'} ne 'preassigned' &&
                   1413: 	    $slot{'type'} ne 'schedulable_student') {
                   1414: 	    push(@errors,"$name not created -- invalid type ($slot{'type'}) must be either preassigned or schedulable_student");
                   1415: 	    next;
                   1416: 	}
1.14      albertel 1417: 	if ($entries{$fields{'starttime'}}) {
                   1418: 	    $slot{'starttime'}=&UnixDate($entries{$fields{'starttime'}},"%s");
                   1419: 	}
                   1420: 	if ($entries{$fields{'endtime'}}) {
1.16      albertel 1421: 	    $slot{'endtime'}=&UnixDate($entries{$fields{'endtime'}},"%s");
1.14      albertel 1422: 	}
1.58    ! albertel 1423: 
        !          1424: 	# start/endtime must be defined and greater than zero
        !          1425: 	if (!$slot{'starttime'}) {
        !          1426: 	    push(@errors,"$name not created -- Invalid start time");
        !          1427: 	    next;
        !          1428: 	}
        !          1429: 	if (!$slot{'endtime'}) {
        !          1430: 	    push(@errors,"$name not created -- Invalid end time");
        !          1431: 	    next;
        !          1432: 	}
        !          1433: 	if ($slot{'starttime'} > $slot{'endtime'}) {
        !          1434: 	    push(@errors,"$name not created -- Slot starts after it ends");
        !          1435: 	    next;
        !          1436: 	}
        !          1437: 
1.23      albertel 1438: 	if ($entries{$fields{'startreserve'}}) {
                   1439: 	    $slot{'startreserve'}=
                   1440: 		&UnixDate($entries{$fields{'startreserve'}},"%s");
                   1441: 	}
1.58    ! albertel 1442: 	if (defined($slot{'startreserve'})
        !          1443: 	    && $slot{'startreserve'} > $slot{'starttime'}) {
        !          1444: 	    push(@errors,"$name not created -- Slot's reservation start time is after the slot's start time.");
        !          1445: 	    next;
        !          1446: 	}
        !          1447: 
1.14      albertel 1448: 	foreach my $key ('ip','proctor','description','maxspace',
                   1449: 			 'secret','symb') {
                   1450: 	    if ($entries{$fields{$key}}) {
                   1451: 		$slot{$key}=$entries{$fields{$key}};
                   1452: 	    }
                   1453: 	}
1.58    ! albertel 1454: 
1.14      albertel 1455: 	if ($entries{$fields{'uniqueperiod'}}) {
                   1456: 	    my ($start,$end)=split(',',$entries{$fields{'uniqueperiod'}});
                   1457: 	    my @times=(&UnixDate($start,"%s"),
                   1458: 		       &UnixDate($end,"%s"));
                   1459: 	    $slot{'uniqueperiod'}=\@times;
                   1460: 	}
1.58    ! albertel 1461: 	if (defined($slot{'uniqueperiod'})
        !          1462: 	    && $slot{'uniqueperiod'}[0] > $slot{'uniqueperiod'}[1]) {
        !          1463: 	    push(@errors,"$name not created -- Slot's unique period start time is later than the unique period's end time.");
        !          1464: 	    next;
        !          1465: 	}
1.14      albertel 1466: 
                   1467: 	&Apache::lonnet::cput('slots',{$name=>\%slot},$cdom,$cname);
                   1468: 	$r->print('.');
                   1469: 	$r->rflush();
                   1470: 	$countdone++;
                   1471:     }
1.31      albertel 1472:     $r->print("<p>Created $countdone slots\n</p>");
                   1473:     foreach my $error (@errors) {
                   1474: 	$r->print("<p>$error\n</p>");
                   1475:     }
1.19      albertel 1476:     &show_table($r,$mgr);
1.14      albertel 1477:     return '';
                   1478: }
                   1479: 
1.1       albertel 1480: sub handler {
                   1481:     my $r=shift;
                   1482: 
1.30      albertel 1483:     &Apache::loncommon::content_type($r,'text/html');
                   1484:     &Apache::loncommon::no_cache($r);
                   1485:     if ($r->header_only()) {
                   1486: 	$r->send_http_header();
                   1487: 	return OK;
                   1488:     }
                   1489: 
1.8       albertel 1490:     &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'});
1.28      albertel 1491:     
1.12      albertel 1492:     my $vgr=&Apache::lonnet::allowed('vgr',$env{'request.course.id'});
1.14      albertel 1493:     my $mgr=&Apache::lonnet::allowed('mgr',$env{'request.course.id'});
1.28      albertel 1494:     my $title='Requesting Another Worktime';
                   1495:     if ($env{'form.command'} =~ /^(showslots|uploadstart|csvuploadmap|csvuploadassign)$/ && $vgr eq 'F') {
                   1496: 	$title = 'Managing Slots';
                   1497:     }
                   1498:     &start_page($r,$title);
                   1499: 
1.8       albertel 1500:     if ($env{'form.command'} eq 'showslots' && $vgr eq 'F') {
1.19      albertel 1501: 	&show_table($r,$mgr);
1.33      albertel 1502:     } elsif ($env{'form.command'} eq 'remove_registration' && $mgr eq 'F') {
                   1503: 	&remove_registration($r);
                   1504:     } elsif ($env{'form.command'} eq 'release' && $mgr eq 'F') {
1.55      albertel 1505: 	if ($env{'form.entry'} eq 'remove all') {
                   1506: 	    &release_all_slot($r,$mgr);
                   1507: 	} else {
                   1508: 	    &release_slot($r,undef,undef,undef,$mgr);
                   1509: 	}
1.34      albertel 1510:     } elsif ($env{'form.command'} eq 'delete' && $mgr eq 'F') {
                   1511: 	&delete_slot($r);
1.14      albertel 1512:     } elsif ($env{'form.command'} eq 'uploadstart' && $mgr eq 'F') {
1.19      albertel 1513: 	&upload_start($r);
1.14      albertel 1514:     } elsif ($env{'form.command'} eq 'csvuploadmap' && $mgr eq 'F') {
1.19      albertel 1515: 	&csv_upload_map($r);
1.14      albertel 1516:     } elsif ($env{'form.command'} eq 'csvuploadassign' && $mgr eq 'F') {
                   1517: 	if ($env{'form.associate'} ne 'Reverse Association') {
1.19      albertel 1518: 	    &csv_upload_assign($r,$mgr);
1.14      albertel 1519: 	} else {
                   1520: 	    if ( $env{'form.upfile_associate'} ne 'reverse' ) {
                   1521: 		$env{'form.upfile_associate'} = 'reverse';
                   1522: 	    } else {
                   1523: 		$env{'form.upfile_associate'} = 'forward';
                   1524: 	    }
1.19      albertel 1525: 	    &csv_upload_map($r);
1.14      albertel 1526: 	}
1.8       albertel 1527:     } else {
1.19      albertel 1528: 	my $symb=&Apache::lonnet::unescape($env{'form.symb'});
                   1529: 	my (undef,undef,$res)=&Apache::lonnet::decode_symb($symb);
1.36      albertel 1530: 	my $useslots = &Apache::lonnet::EXT("resource.0.useslots",$symb);
                   1531: 	if ($useslots ne 'resource') {
1.19      albertel 1532: 	    &fail($r,'not_valid');
                   1533: 	    return OK;
                   1534: 	}
                   1535: 	$env{'request.symb'}=$symb;
1.36      albertel 1536: 	my $type = ($res =~ /\.task$/) ? 'Task'
                   1537: 	                               : 'problem';
                   1538: 	my ($status) = &Apache::lonhomework::check_slot_access('0',$type);
1.11      albertel 1539: 	if ($status eq 'CAN_ANSWER' ||
                   1540: 	    $status eq 'NEEDS_CHECKIN' ||
                   1541: 	    $status eq 'WAITING_FOR_GRADE') {
                   1542: 	    &fail($r,'not_allowed');
                   1543: 	    return OK;
                   1544: 	}
                   1545: 	if ($env{'form.requestattempt'}) {
                   1546: 	    &show_choices($r,$symb);
                   1547: 	} elsif ($env{'form.command'} eq 'release') {
                   1548: 	    &release_slot($r,$symb);
                   1549: 	} elsif ($env{'form.command'} eq 'get') {
                   1550: 	    &get_slot($r,$symb);
                   1551: 	} elsif ($env{'form.command'} eq 'change') {
1.39      albertel 1552: 	    if (&release_slot($r,$symb,$env{'form.releaseslot'},1)) {
                   1553: 		&get_slot($r,$symb);
                   1554: 	    }
1.11      albertel 1555: 	} else {
                   1556: 	    $r->print("<p>Unknown command: ".$env{'form.command'}."</p>");
                   1557: 	}
1.2       albertel 1558:     }
1.1       albertel 1559:     &end_page($r);
                   1560:     return OK;
                   1561: }
1.3       albertel 1562: 
                   1563: 1;
                   1564: __END__

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