Annotation of loncom/interface/slotrequest.pm, revision 1.14

1.1       albertel    1: # The LearningOnline Network with CAPA
                      2: # Handler for requesting to have slots added to a students record
                      3: #
1.14    ! albertel    4: # $Id: slotrequest.pm,v 1.13 2005/09/09 18:27:56 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;
1.14    ! albertel   37: use Date::Manip;
1.1       albertel   38: 
                     39: sub fail {
                     40:     my ($r,$code)=@_;
1.2       albertel   41:     if ($code eq 'not_valid') {
1.8       albertel   42: 	$r->print('<p>'.&mt('Unable to understand what resource you wanted to sign up for.').'</p>');
1.2       albertel   43: 
1.8       albertel   44:     } elsif ($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>');
1.2       albertel   48:     }
1.8       albertel   49:     
1.2       albertel   50:     $r->print('<p><a href="/adm/flip?postdata=return:">'.
                     51: 	      &mt('Return to last resource').'</a></p>');
1.1       albertel   52:     &end_page($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'));
1.14    ! albertel   61:     $r->print('<p>'.$env{'form.command'}.'</p>');
1.1       albertel   62: }
                     63: 
                     64: sub end_page {
                     65:     my ($r)=@_;
                     66:     $r->print(&Apache::loncommon::endbodytag().'</html>');
                     67: }
                     68: 
1.2       albertel   69: =pod
                     70: 
                     71:  slot_reservations db
                     72:    - keys are 
                     73:     - slotname\0id -> value is an hashref of
                     74:                          name -> user@domain of holder
                     75:                          timestamp -> timestamp of reservation
                     76:                          symb -> symb of resource that it is reserved for
                     77: 
                     78: =cut
                     79: 
                     80: sub get_course {
                     81:     (undef,my $courseid)=&Apache::lonxml::whichuser();
                     82:     my $cdom=$env{'course.'.$courseid.'.domain'};
                     83:     my $cnum=$env{'course.'.$courseid.'.num'};
                     84:     return ($cnum,$cdom);
                     85: }
                     86: 
                     87: sub get_reservation_ids {
                     88:     my ($slot_name)=@_;
                     89:     
                     90:     my ($cnum,$cdom)=&get_course();
                     91: 
                     92:     my %consumed=&Apache::lonnet::dump('slot_reservations',$cdom,$cnum,
                     93: 				       "^$slot_name\0");
                     94:     
                     95:     my ($tmp)=%consumed;
                     96:     if ($tmp=~/^error: 2 / ) {
                     97: 	return 0;
                     98:     }
                     99:     return keys(%consumed);
                    100: }
                    101: 
                    102: sub space_available {
                    103:     my ($slot_name,$slot)=@_;
                    104:     my $max=$slot->{'maxspace'};
                    105: 
                    106:     if (!defined($max)) { return 1; }
                    107: 
                    108:     my $consumed=scalar(&get_reservation_ids($slot_name));
                    109:     if ($consumed < $max) {
                    110: 	return 1
                    111:     }
                    112:     return 0;
                    113: }
1.3       albertel  114: 
1.4       albertel  115: sub check_for_reservation {
                    116:     my ($symb)=@_;
                    117:     my $student = &Apache::lonnet::EXT("resource.0.availablestudent", $symb,
                    118: 				       $env{'user.domain'}, $env{'user.name'});
                    119: 
                    120:     my $course = &Apache::lonnet::EXT("resource.0.available", $symb,
                    121: 				    $env{'user.domain'}, $env{'user.name'});
                    122:     my @slots = (split(/:/,$student), split(/:/, $course));
                    123: 
                    124:     &Apache::lonxml::debug(" slot list is ".join(':',@slots));
                    125: 
                    126:     my ($cnum,$cdom)=&get_course();
                    127:     my %slots=&Apache::lonnet::get('slots', [@slots], $cdom, $cnum);
                    128: 
                    129:     foreach my $slot_name (@slots) {
                    130: 	next if (!defined($slots{$slot_name}) ||
                    131: 		 !ref($slots{$slot_name}));
                    132: 	&Apache::lonxml::debug(time." $slot_name ".
                    133: 			       $slots{$slot_name}->{'starttime'}." -- ".
                    134: 			       $slots{$slot_name}->{'startreserve'});
1.7       albertel  135: 	if ($slots{$slot_name}->{'endtime'} > time &&
1.4       albertel  136: 	    $slots{$slot_name}->{'startreserve'} < time) {
1.7       albertel  137: 	    # between start of reservation times and end of slot
1.4       albertel  138: 	    return($slot_name, $slots{$slot_name});
                    139: 	}
                    140:     }
                    141:     return (undef,undef);
                    142: }
                    143: 
1.5       albertel  144: sub check_for_conflict {
                    145:     my ($symb,$new_slot_name)=@_;
                    146:     my $student = &Apache::lonnet::EXT("resource.0.availablestudent", $symb,
                    147: 				       $env{'user.domain'}, $env{'user.name'});
                    148:     my $course = &Apache::lonnet::EXT("resource.0.available", $symb,
                    149: 				      $env{'user.domain'}, $env{'user.name'});
                    150:     my @slots = (split(/:/,$student), split(/:/, $course));
                    151:     my ($cnum,$cdom)=&get_course();
                    152:     my %slots=&Apache::lonnet::get('slots', [@slots], $cdom, $cnum);
                    153:     foreach my $slot_name (@slots) {
                    154: 	next if (!defined($slots{$slot_name}) ||
                    155: 		 !ref($slots{$slot_name}));
                    156: 
                    157:         next if (!defined($slots{$slot_name}->{'uniqueperiod'}) ||
                    158: 		 !ref($slots{$slot_name}->{'uniqueperiod'}));
                    159: 	my ($start,$end)=@{$slots{$slot_name}->{'uniqueperiod'}};
                    160: 	if ($start<time && time < $end) {
                    161: 	    return $slot_name;
                    162: 	}
                    163:     }
                    164:     return undef;
                    165: 
                    166: }
                    167: 
1.2       albertel  168: sub make_reservation {
                    169:     my ($slot_name,$slot,$symb)=@_;
1.3       albertel  170: 
                    171:     my ($cnum,$cdom)=&get_course();
                    172: 
                    173:     my $value=&Apache::lonnet::EXT("resource.0.availablestudent",$symb,
                    174: 				   $env{'user.domain'},$env{'user.name'});
                    175:     &Apache::lonxml::debug("value is  $value<br />");
                    176:     foreach my $other_slot (split(/:/, $value)) {
                    177: 	if ($other_slot eq $slot_name) {
                    178: 	    my %consumed=&Apache::lonnet::dump('slot_reservations', $cdom,
                    179: 					       $cnum, "^$slot_name\0");   
                    180: 
                    181: 	    my $me=$env{'user.name'}.'@'.$env{'user.domain'};
                    182: 	    foreach my $key (keys(%consumed)) {
                    183: 		if ($consumed{$key}->{'name'} eq $me) {
                    184: 		    my $num=(split('\0',$key))[1];
                    185: 		    return -$num;
                    186: 		}
                    187: 	    }
                    188: 	}
                    189:     }
                    190: 
1.2       albertel  191:     my $max=$slot->{'maxspace'};
1.3       albertel  192:     if (!defined($max)) { $max=99999; }
1.2       albertel  193: 
                    194:     my (@ids)=&get_reservation_ids($slot_name);
                    195: 
                    196:     my $last=0;
                    197:     foreach my $id (@ids) {
                    198: 	my $num=(split('\0',$id))[1];
                    199: 	if ($num > $last) { $last=$num; }
                    200:     }
                    201:     
                    202:     my $wanted=$last+1;
1.3       albertel  203:     &Apache::lonxml::debug("wanted $wanted<br />");
1.7       albertel  204:     if (scalar(@ids) >= $max) {
1.2       albertel  205: 	# full up
1.7       albertel  206: 	return undef;
1.2       albertel  207:     }
                    208:     
                    209:     my %reservation=('name'      => $env{'user.name'}.'@'.$env{'user.domain'},
                    210: 		     'timestamp' => time,
                    211: 		     'symb'      => $symb);
                    212: 
                    213:     my $success=&Apache::lonnet::newput('slot_reservations',
                    214: 					{"$slot_name\0$wanted" =>
                    215: 					     \%reservation},
1.3       albertel  216: 					$cdom, $cnum);
                    217: 
1.2       albertel  218:     if ($success eq 'ok') {
1.3       albertel  219: 	my $new_value=$slot_name;
                    220: 	if ($value) {
                    221: 	    $new_value=$value.':'.$new_value;
                    222: 	}
                    223: 	my $result=&Apache::lonparmset::storeparm_by_symb($symb,
                    224: 						      '0_availablestudent',
                    225: 						       1, $new_value, 'string',
                    226: 						       $env{'user.name'},
                    227: 					               $env{'user.domain'});
                    228: 	&Apache::lonxml::debug("hrrm $result");
1.2       albertel  229: 	return $wanted;
                    230:     }
1.3       albertel  231: 
1.2       albertel  232:     # someone else got it
1.3       albertel  233:     return undef;
                    234: }
                    235: 
1.5       albertel  236: sub release_slot {
1.6       albertel  237:     my ($r,$symb,$slot_name,$inhibit_return_link)=@_;
                    238: 
                    239:     if ($slot_name eq '') { $slot_name=$env{'form.slotname'}; }
                    240:     my ($cnum,$cdom)=&get_course();
                    241: 
1.5       albertel  242:     # get parameter string, check for existance, rebuild string with the slot
1.6       albertel  243: 				       
                    244:     my @slots = split(/:/,&Apache::lonnet::EXT("resource.0.availablestudent",
                    245: 					       $symb,$env{'user.domain'},
                    246: 					       $env{'user.name'}));
                    247:     my @new_slots;
                    248:     foreach my $exist_slot (@slots) {
                    249: 	if ($exist_slot eq $slot_name) { next; }
                    250: 	push(@new_slots,$exist_slot);
                    251:     }
                    252:     my $new_param = join(':',@new_slots);
1.5       albertel  253: 
                    254:     # get slot reservations, check if user has one, if so remove reservation
1.6       albertel  255:     my %consumed=&Apache::lonnet::dump('slot_reservations',$cdom,$cnum,
                    256: 				       "^$slot_name\0");
                    257:     foreach my $entry (keys(%consumed)) {
                    258: 	if ( $consumed{$entry}->{'name'} eq 
                    259: 	     ($env{'user.name'}.'@'.$env{'user.domain'}) ) {
                    260: 	    &Apache::lonnet::del('slot_reservations',[$entry],
                    261: 				 $cdom,$cnum);
                    262: 	}
                    263:     }
1.5       albertel  264:     # store new parameter string
1.6       albertel  265:     my $result=&Apache::lonparmset::storeparm_by_symb($symb,
                    266: 						      '0_availablestudent',
                    267: 						      1, $new_param, 'string',
                    268: 						      $env{'user.name'},
                    269: 						      $env{'user.domain'});
                    270:     my %slot=&Apache::lonnet::get_slot($slot_name);
                    271:     my $description=&get_description($env{'form.slotname'},\%slot);
                    272:     $r->print("<p>Released Reservation: $description</p>");
1.7       albertel  273:     if (!$inhibit_return_link) {
1.6       albertel  274: 	$r->print('<p><a href="/adm/flip?postdata=return:">'.
                    275: 		  &mt('Return to last resource').'</a></p>');
                    276:     }
                    277:     return 1;
1.5       albertel  278: }
                    279: 
1.3       albertel  280: sub get_slot {
                    281:     my ($r,$symb)=@_;
                    282: 
1.5       albertel  283:     my $slot_name=&check_for_conflict($symb,$env{'form.slotname'});
                    284:     if ($slot_name) {
                    285: 	my %slot=&Apache::lonnet::get_slot($slot_name);
1.6       albertel  286: 	my $description1=&get_description($slot_name,\%slot);
                    287: 	%slot=&Apache::lonnet::get_slot($env{'form.slotname'});
                    288: 	my $description2=&get_description($env{'form.slotname'},\%slot);
                    289: 	$r->print("<p>Already have a reservation: $description1</p>");
1.7       albertel  290: 	if ($slot_name ne $env{'form.slotname'}) {
                    291: 	    $r->print(<<STUFF);
1.6       albertel  292: <form method="POST" action="/adm/slotrequest">
                    293:    <input type="hidden" name="symb" value="$env{'form.symb'}" />
                    294:    <input type="hidden" name="slotname" value="$env{'form.slotname'}" />
                    295:    <input type="hidden" name="releaseslot" value="$slot_name" />
                    296:    <input type="hidden" name="command" value="change" />
                    297: STUFF
1.7       albertel  298:             $r->print("<p>You can either ");
                    299: 	    $r->print(<<STUFF);
1.6       albertel  300:    <input type="submit" name="change" value="Change" />
                    301: STUFF
1.7       albertel  302: 	    $r->print(' your reservation from <b>'.$description1.'</b> to <b>'.
                    303: 		      $description2.
                    304: 		      '</b> <br />or <a href="/adm/flip?postdata=return:">'.
                    305: 		      &mt('Return to last resource').'</a></p>');
                    306: 	    $r->print(<<STUFF);
1.6       albertel  307: </form>
                    308: STUFF
1.7       albertel  309:         } else {
                    310: 	    $r->print('<p><a href="/adm/flip?postdata=return:">'.
                    311: 		      &mt('Return to last resource').'</a></p>');
                    312: 	}
1.5       albertel  313: 	return;
                    314:     }
1.3       albertel  315:     my %slot=&Apache::lonnet::get_slot($env{'form.slotname'});
                    316:     my $reserved=&make_reservation($env{'form.slotname'},
                    317: 				   \%slot,$symb);
                    318:     my $description=&get_description($env{'form.slotname'},\%slot);
1.7       albertel  319:     if (defined($reserved)) {
                    320: 	if ($reserved > -1) {
                    321: 	    $r->print("<p>Success: $description</p>");
                    322: 	    $r->print('<p><a href="/adm/flip?postdata=return:">'.
                    323: 		      &mt('Return to last resource').'</a></p>');
                    324: 	    return;
                    325: 	} elsif ($reserved < 0) {
                    326: 	    $r->print("<p>Already reserved: $description</p>");
                    327: 	    $r->print('<p><a href="/adm/flip?postdata=return:">'.
                    328: 		      &mt('Return to last resource').'</a></p>');
                    329: 	    return;
                    330: 	}
1.3       albertel  331:     }
                    332: 
1.7       albertel  333:     my %lt=('request'=>"Availibility list",
1.3       albertel  334: 	    'try'    =>'Try again');
                    335:     %lt=&Apache::lonlocal::texthash(%lt);
                    336: 
                    337:     $r->print(<<STUFF);
                    338: <p> <font color="red">Failed</font> to reserve a spot for $description. </p>
                    339: <p>
                    340: <form method="POST" action="/adm/slotrequest">
                    341:    <input type="submit" name="Try Again" value="$lt{'try'}" />
                    342:    <input type="hidden" name="symb" value="$env{'form.symb'}" />
                    343:    <input type="hidden" name="slotname" value="$env{'form.slotname'}" />
                    344:    <input type="hidden" name="command" value="get" />
                    345: </form>
                    346: ?
                    347: </p>
                    348: <p>
                    349: or
                    350: <form method="POST" action="/adm/slotrequest">
                    351:     <input type="hidden" name="symb" value="$env{'form.symb'}" />
                    352:     <input type="submit" name="requestattempt" value="$lt{'request'}" />
                    353: </form>
                    354: </p>
                    355: or
                    356: STUFF
                    357:     $r->print('<p><a href="/adm/flip?postdata=return:">'.
                    358: 	      &mt('Return to last resource').'</a></p>');
                    359:     return;
                    360: }
                    361: 
                    362: sub allowed_slot {
                    363:     my ($slot_name,$slot,$symb)=@_;
                    364:     #already started
                    365:     if ($slot->{'starttime'} < time) {
1.5       albertel  366: 	# all open slot to be schedulable
                    367: 	#return 0;
1.3       albertel  368:     }
1.5       albertel  369:     &Apache::lonxml::debug("$slot_name starttime good");
1.3       albertel  370:     #already ended
                    371:     if ($slot->{'endtime'} < time) {
                    372: 	return 0;
                    373:     }
1.5       albertel  374:     &Apache::lonxml::debug("$slot_name endtime good");
1.3       albertel  375:     # not allowed to pick this one
                    376:     if (defined($slot->{'type'})
                    377: 	&& $slot->{'type'} ne 'schedulable_student') {
                    378: 	return 0;
                    379:     }
1.5       albertel  380:     &Apache::lonxml::debug("$slot_name type good");
1.3       albertel  381:     # not allowed for this resource
                    382:     if (defined($slot->{'symb'})
                    383: 	&& $slot->{'symb'} ne $symb) {
                    384: 	return 0;
                    385:     }
1.5       albertel  386:     &Apache::lonxml::debug("$slot_name symb good");
1.3       albertel  387:     return 1;
1.2       albertel  388: }
                    389: 
1.3       albertel  390: sub get_description {
                    391:     my ($slot_name,$slot)=@_;
                    392:     my $description=$slot->{'description'};
                    393:     if (!defined($description)) {
1.4       albertel  394: 	$description=&mt('[_1] From [_2] to [_3]',$slot_name,
1.3       albertel  395: 			 &Apache::lonlocal::locallocaltime($slot->{'starttime'}),
                    396: 			 &Apache::lonlocal::locallocaltime($slot->{'endtime'}));
                    397:     }
                    398:     return $description;
                    399: }
1.2       albertel  400: 
                    401: sub show_choices {
                    402:     my ($r,$symb)=@_;
                    403: 
                    404:     my ($cnum,$cdom)=&get_course();
                    405:     my %slots=&Apache::lonnet::dump('slots',$cdom,$cnum);
1.3       albertel  406:     my $available;
1.2       albertel  407:     $r->print('<table border="1">');
1.5       albertel  408:     &Apache::lonxml::debug("Checking Slots");
                    409:     my ($got_slot)=&check_for_reservation($symb);
1.2       albertel  410:     foreach my $slot (sort 
                    411: 		      { return $slots{$a}->{'starttime'} <=> $slots{$b}->{'starttime'} }
                    412: 		      (keys(%slots)))  {
1.5       albertel  413: 
                    414: 	&Apache::lonxml::debug("Checking Slot $slot");
1.3       albertel  415: 	next if (!&allowed_slot($slot,$slots{$slot}));
                    416: 
                    417: 	$available++;
                    418: 
                    419: 	my $description=&get_description($slot,$slots{$slot});
1.2       albertel  420: 
                    421: 	my $form=&mt('Unavailable');
1.7       albertel  422: 	if (($slot eq $got_slot) ||
                    423: 	    &space_available($slot,$slots{$slot},$symb)) {
1.5       albertel  424: 	    my $text=&mt('Select');
                    425: 	    my $command='get';
                    426: 	    if ($slot eq $got_slot) {
                    427: 		$text=&mt('Free Reservation');
                    428: 		$command='release';
                    429: 	    }
1.3       albertel  430: 	    my $escsymb=&Apache::lonnet::escape($symb);
1.2       albertel  431: 	    $form=<<STUFF;
1.3       albertel  432:    <form method="POST" action="/adm/slotrequest">
1.5       albertel  433:      <input type="submit" name="Select" value="$text" />
1.3       albertel  434:      <input type="hidden" name="symb" value="$escsymb" />
                    435:      <input type="hidden" name="slotname" value="$slot" />
1.5       albertel  436:      <input type="hidden" name="command" value="$command" />
1.2       albertel  437:    </form>
                    438: STUFF
                    439: 	}
                    440: 	$r->print(<<STUFF);
                    441: <tr>
                    442:  <td>$form</td>
                    443:  <td>$description</td>
                    444: </tr>
                    445: STUFF
                    446:     }
1.3       albertel  447: 
                    448:     if (!$available) {
1.5       albertel  449: 	$r->print('<tr><td>No available times. <a href="/adm/flip?postdata=return:">'.
1.3       albertel  450: 		  &mt('Return to last resource').'</a></td></tr>');
                    451:     }
1.2       albertel  452:     $r->print('</table>');
                    453: }
                    454: 
1.5       albertel  455: sub show_table {
1.14    ! albertel  456:     my ($r,$symb,$mgr)=@_;
1.5       albertel  457: 
                    458:     my ($cnum,$cdom)=&get_course();
                    459:     my %slots=&Apache::lonnet::dump('slots',$cdom,$cnum);
                    460:     my $available;
1.14    ! albertel  461:     if ($mgr eq 'F') {
        !           462: 	$r->print('<form method="POST" action="/adm/slotrequest">
        !           463: <input type="hidden" name="command" value="uploadstart" />
        !           464: <input type="hidden" name="symb" value="'.$env{'form.symb'}.'" />
        !           465: <input type="submit" name="start" value="'.&mt('Upload Slot List').'" />
        !           466: </form>');
        !           467:     }
1.10      albertel  468:     $r->print('<table border="1">
                    469: <tr>
                    470:   <th>Slot name</th>
                    471:   <th>Type</th>
                    472:   <th>Description</th>
                    473:   <th>Start Time</th>
                    474:   <th>End Time</th>
                    475:   <th>Max space</th>
                    476:   <th>Scheduled Students</th>
                    477:   <th>Proctors</th>
                    478:   <th>Unique Period</th>
                    479: </tr>');
1.5       albertel  480:     foreach my $slot (sort 
                    481: 		      { return $slots{$a}->{'starttime'} <=> $slots{$b}->{'starttime'} }
                    482: 		      (keys(%slots)))  {
                    483: 	if (defined($slots{$slot}->{'type'})
                    484: 	    && $slots{$slot}->{'type'} ne 'schedulable_student') {
1.13      albertel  485: 	    #next;
1.5       albertel  486: 	}
                    487: 	my $description=&get_description($slot,$slots{$slot});
                    488: 	my %consumed=&Apache::lonnet::dump('slot_reservations',$cdom,$cnum,
                    489: 					   "^$slot\0");
                    490: 	my $ids;
                    491: 	foreach my $entry (sort(keys(%consumed))) {
                    492: 	    my (undef,$id)=split("\0",$entry);
                    493: 	    $ids.= $id.'-> '.$consumed{$entry}->{'name'}.'<br />';
                    494: 	}
                    495: 	my $start=localtime($slots{$slot}->{'starttime'});
                    496: 	my $end=localtime($slots{$slot}->{'endtime'});
1.14    ! albertel  497: 	my $unique;
        !           498: 	if (ref($slots{$slot}{'uniqueperiod'})) {
        !           499: 	    $unique=localtime($slots{$slot}{'uniqueperiod'}[0]).','.
        !           500: 		localtime($slots{$slot}{'uniqueperiod'}[1]);
        !           501: 	}
        !           502: 
1.5       albertel  503: 	$r->print(<<STUFF);
                    504: <tr>
                    505:  <td>$slot</td>
1.10      albertel  506:  <td>$slots{$slot}->{'type'}</td>
1.5       albertel  507:  <td>$description</td>
                    508:  <td>$start</td>
                    509:  <td>$end</td>
                    510:  <td>$slots{$slot}->{'maxspace'}</td>
                    511:  <td>$ids</td>
1.10      albertel  512:  <td>$slots{$slot}->{'proctor'}</td>
1.14    ! albertel  513:  <td>$unique</td>
1.5       albertel  514: </tr>
                    515: STUFF
                    516:     }
                    517:     $r->print('</table>');
                    518: }
                    519: 
1.14    ! albertel  520: sub upload_start {
        !           521:     my ($r,$symb)=@_;    
        !           522:     $r->print(&Apache::grades::checkforfile_js());
        !           523:     my $result.='<table width=100% border=0><tr bgcolor="#e6ffff"><td>'."\n";
        !           524:     $result.='&nbsp;<b>'.
        !           525: 	&mt('Specify a file containing the slot definitions.').
        !           526: 	'</b></td></tr>'."\n";
        !           527:     $result.='<tr bgcolor=#ffffe6><td>'."\n";
        !           528:     my $upfile_select=&Apache::loncommon::upfile_select_html();
        !           529:     my $ignore=&mt('Ignore First Line');
        !           530:     $result.=<<ENDUPFORM;
        !           531: <form method="post" enctype="multipart/form-data" action="/adm/slotrequest" name="slotupload">
        !           532: <input type="hidden" name="symb" value="$symb" />
        !           533: <input type="hidden" name="command" value="csvuploadmap" />
        !           534: $upfile_select
        !           535: <br /><input type="button" onClick="javascript:checkUpload(this.form);" value="Upload Data" />
        !           536: <label><input type="checkbox" name="noFirstLine" />$ignore</label>
        !           537: </form>
        !           538: ENDUPFORM
        !           539:     $result.='</td></tr></table>'."\n";
        !           540:     $result.='</td></tr></table>'."\n";
        !           541:     $r->print($result);
        !           542: }
        !           543: 
        !           544: sub csvuploadmap_header {
        !           545:     my ($r,$symb,$datatoken,$distotal)= @_;
        !           546:     my $javascript;
        !           547:     if ($env{'form.upfile_associate'} eq 'reverse') {
        !           548: 	$javascript=&csvupload_javascript_reverse_associate();
        !           549:     } else {
        !           550: 	$javascript=&csvupload_javascript_forward_associate();
        !           551:     }
        !           552: 
        !           553:     my $checked=(($env{'form.noFirstLine'})?' checked="checked"':'');
        !           554:     my $ignore=&mt('Ignore First Line');
        !           555:     $r->print(<<ENDPICK);
        !           556: <form method="post" enctype="multipart/form-data" action="/adm/slotrequest" name="slotupload">
        !           557: <h3>Identify fields</h3>
        !           558: Total number of records found in file: $distotal <hr />
        !           559: Enter as many fields as you can. The system will inform you and bring you back
        !           560: to this page if the data selected is insufficient to create the slots.<hr />
        !           561: <input type="button" value="Reverse Association" onClick="javascript:this.form.associate.value='Reverse Association';submit(this.form);" />
        !           562: <label><input type="checkbox" name="noFirstLine" $checked />$ignore</label>
        !           563: <input type="hidden" name="associate"  value="" />
        !           564: <input type="hidden" name="datatoken"  value="$datatoken" />
        !           565: <input type="hidden" name="fileupload" value="$env{'form.fileupload'}" />
        !           566: <input type="hidden" name="upfiletype" value="$env{'form.upfiletype'}" />
        !           567: <input type="hidden" name="upfile_associate" 
        !           568:                                        value="$env{'form.upfile_associate'}" />
        !           569: <input type="hidden" name="symb"       value="$symb" />
        !           570: <input type="hidden" name="command"    value="csvuploadassign" />
        !           571: <hr />
        !           572: <script type="text/javascript" language="Javascript">
        !           573: $javascript
        !           574: </script>
        !           575: ENDPICK
        !           576:     return '';
        !           577: 
        !           578: }
        !           579: 
        !           580: sub csvuploadmap_footer {
        !           581:     my ($request,$i,$keyfields) =@_;
        !           582:     $request->print(<<ENDPICK);
        !           583: </table>
        !           584: <input type="hidden" name="nfields" value="$i" />
        !           585: <input type="hidden" name="keyfields" value="$keyfields" />
        !           586: <input type="button" onClick="javascript:verify(this.form)" value="Create Slots" /><br />
        !           587: </form>
        !           588: ENDPICK
        !           589: }
        !           590: 
        !           591: sub csvupload_javascript_reverse_associate {
        !           592:     my $error1=&mt('You need to specify the name, starttime, endtime and a type');
        !           593:     return(<<ENDPICK);
        !           594:   function verify(vf) {
        !           595:     var foundstart=0;
        !           596:     var foundend=0;
        !           597:     var foundname=0;
        !           598:     var foundtype=0;
        !           599:     for (i=0;i<=vf.nfields.value;i++) {
        !           600:       tw=eval('vf.f'+i+'.selectedIndex');
        !           601:       if (i==0 && tw!=0) { foundname=1; }
        !           602:       if (i==1 && tw!=0) { foundtype=1; }
        !           603:       if (i==2 && tw!=0) { foundstat=1; }
        !           604:       if (i==3 && tw!=0) { foundend=1; }
        !           605:     }
        !           606:     if (foundstart==0 && foundend==0 && foundtype==0 && foundname==0) {
        !           607: 	alert('$error1');
        !           608: 	return;
        !           609:     }
        !           610:     vf.submit();
        !           611:   }
        !           612:   function flip(vf,tf) {
        !           613:   }
        !           614: ENDPICK
        !           615: }
        !           616: 
        !           617: sub csvupload_javascript_forward_associate {
        !           618:     my $error1=&mt('You need to specify the name, starttime, endtime and a type');
        !           619:   return(<<ENDPICK);
        !           620:   function verify(vf) {
        !           621:     var foundstart=0;
        !           622:     var foundend=0;
        !           623:     var foundname=0;
        !           624:     var foundtype=0;
        !           625:     for (i=0;i<=vf.nfields.value;i++) {
        !           626:       tw=eval('vf.f'+i+'.selectedIndex');
        !           627:       if (tw==1) { foundname=1; }
        !           628:       if (tw==2) { foundtype=1; }
        !           629:       if (tw==3) { foundstat=1; }
        !           630:       if (tw==4) { foundend=1; }
        !           631:     }
        !           632:     if (foundstart==0 && foundend==0 && foundtype==0 && foundname==0) {
        !           633: 	alert('$error1');
        !           634: 	return;
        !           635:     }
        !           636:     vf.submit();
        !           637:   }
        !           638:   function flip(vf,tf) {
        !           639:   }
        !           640: ENDPICK
        !           641: }
        !           642: 
        !           643: sub csv_upload_map {
        !           644:     my ($r,$symb)= @_;
        !           645: 
        !           646:     my $datatoken;
        !           647:     if (!$env{'form.datatoken'}) {
        !           648: 	$datatoken=&Apache::loncommon::upfile_store($r);
        !           649:     } else {
        !           650: 	$datatoken=$env{'form.datatoken'};
        !           651: 	&Apache::loncommon::load_tmp_file($r);
        !           652:     }
        !           653:     my @records=&Apache::loncommon::upfile_record_sep();
        !           654:     if ($env{'form.noFirstLine'}) { shift(@records); }
        !           655:     &csvuploadmap_header($r,$symb,$datatoken,$#records+1);
        !           656:     my ($i,$keyfields);
        !           657:     if (@records) {
        !           658: 	my @fields=&csvupload_fields();
        !           659: 
        !           660: 	if ($env{'form.upfile_associate'} eq 'reverse') {	
        !           661: 	    &Apache::loncommon::csv_print_samples($r,\@records);
        !           662: 	    $i=&Apache::loncommon::csv_print_select_table($r,\@records,
        !           663: 							  \@fields);
        !           664: 	    foreach (@fields) { $keyfields.=$_->[0].','; }
        !           665: 	    chop($keyfields);
        !           666: 	} else {
        !           667: 	    unshift(@fields,['none','']);
        !           668: 	    $i=&Apache::loncommon::csv_samples_select_table($r,\@records,
        !           669: 							    \@fields);
        !           670: 	    my %sone=&Apache::loncommon::record_sep($records[0]);
        !           671: 	    $keyfields=join(',',sort(keys(%sone)));
        !           672: 	}
        !           673:     }
        !           674:     &csvuploadmap_footer($r,$i,$keyfields);
        !           675: 
        !           676:     return '';
        !           677: }
        !           678: 
        !           679: sub csvupload_fields {
        !           680:     return (['name','Slot name'],
        !           681: 	    ['type','Type of slot'],
        !           682: 	    ['starttime','Start Time of slot'],
        !           683: 	    ['endtime','End Time of slot'],
        !           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{'starttime'}},"%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: 
1.1       albertel  743: sub handler {
                    744:     my $r=shift;
                    745: 
1.8       albertel  746:     &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'});
1.1       albertel  747:     &start_page($r);
1.2       albertel  748:     my $symb=&Apache::lonnet::unescape($env{'form.symb'});
1.1       albertel  749:     my (undef,undef,$res)=&Apache::lonnet::decode_symb($symb);
1.2       albertel  750:     if ($res !~ /\.task$/) {
1.1       albertel  751: 	&fail($r,'not_valid');
                    752: 	return OK;
                    753:     }
1.8       albertel  754:     $env{'request.symb'}=$symb;
1.12      albertel  755:     my $vgr=&Apache::lonnet::allowed('vgr',$env{'request.course.id'});
1.14    ! albertel  756:     my $mgr=&Apache::lonnet::allowed('mgr',$env{'request.course.id'});
1.8       albertel  757:     if ($env{'form.command'} eq 'showslots' && $vgr eq 'F') {
1.14    ! albertel  758: 	&show_table($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,$symb);
        !           773: 	}
1.8       albertel  774:     } else {
1.11      albertel  775: 	my ($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: 	}
1.2       albertel  794:     }
1.1       albertel  795:     &end_page($r);
                    796:     return OK;
                    797: }
1.3       albertel  798: 
                    799: 1;
                    800: __END__

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