# The LearningOnline Network with CAPA
# Handler for requesting to have slots added to a students record
#
# $Id: slotrequest.pm,v 1.79 2007/04/11 21:49:02 albertel Exp $
#
# Copyright Michigan State University Board of Trustees
#
# This file is part of the LearningOnline Network with CAPA (LON-CAPA).
#
# LON-CAPA is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# LON-CAPA is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with LON-CAPA; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
#
# /home/httpd/html/adm/gpl.txt
#
# http://www.lon-capa.org/
#
###
package Apache::slotrequest;
use strict;
use Apache::Constants qw(:common :http :methods);
use Apache::loncommon();
use Apache::lonlocal;
use Apache::lonnet;
use Apache::lonnavmaps();
use Date::Manip;
use lib '/home/httpd/lib/perl/';
use LONCAPA;
sub fail {
my ($r,$code)=@_;
if ($code eq 'not_valid') {
$r->print('<p>'.&mt('Unable to understand what resource you wanted to sign up for.').'</p>');
} elsif ($code eq 'not_available') {
$r->print('<p>'.&mt('No slots are available.').'</p>');
} elsif ($code eq 'not_allowed') {
$r->print('<p>'.&mt('Not allowed to sign up or change reservations at this time.').'</p>');
} else {
$r->print('<p>'.&mt('Failed.').'</p>');
}
&return_link($r);
&end_page($r);
}
sub start_page {
my ($r,$title)=@_;
$r->print(&Apache::loncommon::start_page($title));
}
sub end_page {
my ($r)=@_;
$r->print(&Apache::loncommon::end_page());
}
=pod
slot_reservations db
- keys are
- slotname\0id -> value is an hashref of
name -> user@domain of holder
timestamp -> timestamp of reservation
symb -> symb of resource that it is reserved for
=cut
sub get_course {
(undef,my $courseid)=&Apache::lonnet::whichuser();
my $cdom=$env{'course.'.$courseid.'.domain'};
my $cnum=$env{'course.'.$courseid.'.num'};
return ($cnum,$cdom);
}
sub get_reservation_ids {
my ($slot_name)=@_;
my ($cnum,$cdom)=&get_course();
my %consumed=&Apache::lonnet::dump('slot_reservations',$cdom,$cnum,
"^$slot_name\0");
if (&Apache::lonnet::error(%consumed)) {
return 'error: Unable to determine current status';
}
my ($tmp)=%consumed;
if ($tmp=~/^error: 2 / ) {
return 0;
}
return keys(%consumed);
}
sub space_available {
my ($slot_name,$slot)=@_;
my $max=$slot->{'maxspace'};
if (!defined($max)) { return 1; }
my $consumed=scalar(&get_reservation_ids($slot_name));
if ($consumed < $max) {
return 1
}
return 0;
}
sub check_for_reservation {
my ($symb,$mode)=@_;
my $student = &Apache::lonnet::EXT("resource.0.availablestudent", $symb,
$env{'user.domain'}, $env{'user.name'});
my $course = &Apache::lonnet::EXT("resource.0.available", $symb,
$env{'user.domain'}, $env{'user.name'});
my @slots = (split(/:/,$student), split(/:/, $course));
&Apache::lonxml::debug(" slot list is ".join(':',@slots));
my ($cnum,$cdom)=&get_course();
my %slots=&Apache::lonnet::get('slots', [@slots], $cdom, $cnum);
if (&Apache::lonnet::error($student)
|| &Apache::lonnet::error($course)
|| &Apache::lonnet::error(%slots)) {
return 'error: Unable to determine current status';
}
my @got;
foreach my $slot_name (sort {
if (ref($slots{$a}) && ref($slots{$b})) {
return $slots{$a}{'starttime'} <=> $slots{$b}{'starttime'}
}
if (ref($slots{$a})) { return -1;}
if (ref($slots{$b})) { return 1;}
return 0;
} @slots) {
next if (!defined($slots{$slot_name}) ||
!ref($slots{$slot_name}));
&Apache::lonxml::debug(time." $slot_name ".
$slots{$slot_name}->{'starttime'}." -- ".
$slots{$slot_name}->{'startreserve'});
if ($slots{$slot_name}->{'endtime'} > time &&
$slots{$slot_name}->{'startreserve'} < time) {
# between start of reservation times and end of slot
if ($mode eq 'allslots') {
push(@got,$slot_name);
} else {
return($slot_name, $slots{$slot_name});
}
}
}
if ($mode eq 'allslots' && @got) {
return @got;
}
return (undef,undef);
}
sub get_consumed_uniqueperiods {
my ($slots) = @_;
my $navmap=Apache::lonnavmaps::navmap->new;
my @problems = $navmap->retrieveResources(undef,
sub { $_[0]->is_problem() },1,0);
my %used_slots;
foreach my $problem (@problems) {
my $symb = $problem->symb();
my $student = &Apache::lonnet::EXT("resource.0.availablestudent",
$symb, $env{'user.domain'},
$env{'user.name'});
my $course = &Apache::lonnet::EXT("resource.0.available",
$symb, $env{'user.domain'},
$env{'user.name'});
if (&Apache::lonnet::error($student)
|| &Apache::lonnet::error($course)) {
return 'error: Unable to determine current status';
}
foreach my $slot (split(/:/,$student), split(/:/, $course)) {
$used_slots{$slot}=1;
}
}
if (!ref($slots)) {
my ($cnum,$cdom)=&get_course();
my %slots=&Apache::lonnet::get('slots', [keys(%used_slots)], $cdom, $cnum);
if (&Apache::lonnet::error(%slots)) {
return 'error: Unable to determine current status';
}
$slots = \%slots;
}
my %consumed_uniqueperiods;
foreach my $slot_name (keys(%used_slots)) {
next if (!defined($slots->{$slot_name}) ||
!ref($slots->{$slot_name}));
next if (!defined($slots->{$slot_name}{'uniqueperiod'}) ||
!ref($slots->{$slot_name}{'uniqueperiod'}));
$consumed_uniqueperiods{$slot_name} =
$slots->{$slot_name}{'uniqueperiod'};
}
return \%consumed_uniqueperiods;
}
sub check_for_conflict {
my ($symb,$new_slot_name,$new_slot,$slots,$consumed_uniqueperiods)=@_;
if (!defined($new_slot->{'uniqueperiod'})) { return undef; }
if (!ref($consumed_uniqueperiods)) {
$consumed_uniqueperiods = &get_consumed_uniqueperiods($slots);
if (&Apache::lonnet::error(%$consumed_uniqueperiods)) {
return 'error: Unable to determine current status';
}
}
my ($new_uniq_start,$new_uniq_end) = @{$new_slot->{'uniqueperiod'}};
foreach my $slot_name (keys(%$consumed_uniqueperiods)) {
my ($start,$end)=@{$consumed_uniqueperiods->{$slot_name}};
if (!
($start < $new_uniq_start && $end < $new_uniq_start) ||
($start > $new_uniq_end && $end > $new_uniq_end )) {
return $slot_name;
}
}
return undef;
}
sub make_reservation {
my ($slot_name,$slot,$symb)=@_;
my ($cnum,$cdom)=&get_course();
my $value=&Apache::lonnet::EXT("resource.0.availablestudent",$symb,
$env{'user.domain'},$env{'user.name'});
&Apache::lonxml::debug("value is $value<br />");
my $use_slots = &Apache::lonnet::EXT("resource.0.useslots");
&Apache::lonxml::debug("use_slots is $use_slots<br />");
if (&Apache::lonnet::error($value)
|| &Apache::lonnet::error($use_slots)) {
return 'error: Unable to determine current status';
}
my $parm_symb = $symb;
my $parm_level = 1;
if ($use_slots eq 'map' || $use_slots eq 'map_map') {
my ($map) = &Apache::lonnet::decode_symb($symb);
$parm_symb = &Apache::lonnet::symbread($map);
$parm_level = 2;
}
foreach my $other_slot (split(/:/, $value)) {
if ($other_slot eq $slot_name) {
my %consumed=&Apache::lonnet::dump('slot_reservations', $cdom,
$cnum, "^$slot_name\0");
if (&Apache::lonnet::error($value)) {
return 'error: Unable to determine current status';
}
my $me=$env{'user.name'}.':'.$env{'user.domain'};
foreach my $key (keys(%consumed)) {
if ($consumed{$key}->{'name'} eq $me) {
my $num=(split('\0',$key))[1];
return -$num;
}
}
}
}
my $max=$slot->{'maxspace'};
if (!defined($max)) { $max=99999; }
my (@ids)=&get_reservation_ids($slot_name);
if (&Apache::lonnet::error(@ids)) {
return 'error: Unable to determine current status';
}
my $last=0;
foreach my $id (@ids) {
my $num=(split('\0',$id))[1];
if ($num > $last) { $last=$num; }
}
my $wanted=$last+1;
&Apache::lonxml::debug("wanted $wanted<br />");
if (scalar(@ids) >= $max) {
# full up
return undef;
}
my %reservation=('name' => $env{'user.name'}.':'.$env{'user.domain'},
'timestamp' => time,
'symb' => $parm_symb);
my $success=&Apache::lonnet::newput('slot_reservations',
{"$slot_name\0$wanted" =>
\%reservation},
$cdom, $cnum);
if ($success eq 'ok') {
my $new_value=$slot_name;
if ($value) {
$new_value=$value.':'.$new_value;
}
my $result=&Apache::lonparmset::storeparm_by_symb($symb,
'0_availablestudent',
$parm_level, $new_value,
'string',
$env{'user.name'},
$env{'user.domain'});
&Apache::lonxml::debug("hrrm $result");
return $wanted;
}
# someone else got it
return undef;
}
sub remove_registration {
my ($r) = @_;
if ($env{'form.entry'} ne 'remove all') {
return &remove_registration_user($r);
}
my $slot_name = $env{'form.slotname'};
my %slot=&Apache::lonnet::get_slot($slot_name);
my ($cnum,$cdom)=&get_course();
my %consumed=&Apache::lonnet::dump('slot_reservations',$cdom,$cnum,
"^$slot_name\0");
if (&Apache::lonnet::error(%consumed)) {
$r->print("<p><span class=\"LC_error\">".&mt('A network error has occured.').'</span></p>');
return;
}
if (!%consumed) {
$r->print("<p>".&mt('Slot <tt>[_1]</tt> has no reservations.',
$slot_name)."</p>");
return;
}
my @names = map { $consumed{$_}{'name'} } (sort(keys(%consumed)));
my $names = join(' ',@names);
my $msg = &mt('Remove all of [_1] from slot [_2]?',$names,$slot_name);
&remove_registration_confirmation($r,$msg,['entry','slotname']);
}
sub remove_registration_user {
my ($r) = @_;
my $slot_name = $env{'form.slotname'};
my $name = &Apache::loncommon::plainname($env{'form.uname'},
$env{'form.udom'});
my $title = &Apache::lonnet::gettitle($env{'form.symb'});
my $msg = &mt('Remove [_1] from slot [_2] for [_3]',
$name,$slot_name,$title);
&remove_registration_confirmation($r,$msg,['uname','udom','slotname',
'entry','symb']);
}
sub remove_registration_confirmation {
my ($r,$msg,$inputs) =@_;
my $hidden_input;
foreach my $parm (@{$inputs}) {
$hidden_input .=
'<input type="hidden" name="'.$parm.'" value="'
.&HTML::Entities::encode($env{'form.'.$parm},'"<>&\'').'" />'."\n";
}
my %lt = &Apache::lonlocal::texthash('yes' => 'Yes',
'no' => 'No',);
$r->print(<<"END_CONFIRM");
<p> $msg </p>
<form action="/adm/slotrequest" method="post">
<input type="hidden" name="command" value="release" />
<input type="hidden" name="button" value="yes" />
$hidden_input
<input type="submit" value="$lt{'yes'}" />
</form>
<form action="/adm/slotrequest" method="post">
<input type="hidden" name="command" value="showslots" />
<input type="submit" value="$lt{'no'}" />
</form>
END_CONFIRM
}
sub release_all_slot {
my ($r,$mgr)=@_;
my $slot_name = $env{'form.slotname'};
my ($cnum,$cdom)=&get_course();
my %consumed=&Apache::lonnet::dump('slot_reservations',$cdom,$cnum,
"^$slot_name\0");
$r->print('<p>'.&mt('Releasing reservations').'</p>');
foreach my $entry (sort { $consumed{$a}{'name'} cmp
$consumed{$b}{'name'} } (keys(%consumed))) {
my ($uname,$udom) = split(':',$consumed{$entry}{'name'});
my ($result,$msg) =
&release_reservation($slot_name,$uname,$udom,
$consumed{$entry}{'symb'},$mgr);
$r->print("<p>$msg</p>");
$r->rflush();
}
$r->print('<p><a href="/adm/slotrequest?command=showslots">'.
&mt('Return to slot list').'</a></p>');
&return_link($r);
}
sub release_slot {
my ($r,$symb,$slot_name,$inhibit_return_link,$mgr)=@_;
if ($slot_name eq '') { $slot_name=$env{'form.slotname'}; }
my ($uname,$udom) = ($env{'user.name'}, $env{'user.domain'});
if ($mgr eq 'F'
&& defined($env{'form.uname'}) && defined($env{'form.udom'})) {
($uname,$udom) = ($env{'form.uname'}, $env{'form.udom'});
}
if ($mgr eq 'F'
&& defined($env{'form.symb'})) {
$symb = &unescape($env{'form.symb'});
}
my ($result,$msg) =
&release_reservation($slot_name,$uname,$udom,$symb,$mgr);
$r->print("<p>$msg</p>");
if ($mgr eq 'F') {
$r->print('<p><a href="/adm/slotrequest?command=showslots">'.
&mt('Return to slot list').'</a></p>');
}
if (!$inhibit_return_link) { &return_link($r); }
return $result;
}
sub release_reservation {
my ($slot_name,$uname,$udom,$symb,$mgr) = @_;
my %slot=&Apache::lonnet::get_slot($slot_name);
my $description=&get_description($slot_name,\%slot);
if ($mgr ne 'F') {
if ($slot{'starttime'} < time) {
return (0,&mt('Not allowed to release Reservation: [_1], as it has already ended.',$description));
}
}
# get parameter string, check for existance, rebuild string with the slot
my @slots = split(/:/,&Apache::lonnet::EXT("resource.0.availablestudent",
$symb,$udom,$uname));
my @new_slots;
foreach my $exist_slot (@slots) {
if ($exist_slot eq $slot_name) { next; }
push(@new_slots,$exist_slot);
}
my $new_param = join(':',@new_slots);
my ($cnum,$cdom)=&get_course();
# get slot reservations, check if user has one, if so remove reservation
my %consumed=&Apache::lonnet::dump('slot_reservations',$cdom,$cnum,
"^$slot_name\0");
foreach my $entry (keys(%consumed)) {
if ( $consumed{$entry}->{'name'} eq ($uname.':'.$udom) ) {
&Apache::lonnet::del('slot_reservations',[$entry],
$cdom,$cnum);
}
}
my $use_slots = &Apache::lonnet::EXT("resource.0.useslots");
&Apache::lonxml::debug("use_slots is $use_slots<br />");
if (&Apache::lonnet::error($use_slots)) {
return (0,'error: Unable to determine current status');
}
my $parm_level = 1;
if ($use_slots eq 'map' || $use_slots eq 'map_map') {
$parm_level = 2;
}
# store new parameter string
my $result=&Apache::lonparmset::storeparm_by_symb($symb,
'0_availablestudent',
$parm_level, $new_param,
'string', $uname, $udom);
my $msg;
if ($mgr eq 'F') {
$msg = &mt('Released Reservation for user: [_1]',"$uname:$udom");
} else {
$msg = &mt('Released Reservation: [_1]',$description);
}
return (1,$msg);
}
sub delete_slot {
my ($r)=@_;
my $slot_name = $env{'form.slotname'};
my %slot=&Apache::lonnet::get_slot($slot_name);
my ($cnum,$cdom)=&get_course();
my %consumed=&Apache::lonnet::dump('slot_reservations',$cdom,$cnum,
"^$slot_name\0");
my ($tmp) = %consumed;
if ($tmp =~ /error: 2/) { undef(%consumed); }
if (%slot && !%consumed) {
$slot{'type'} = 'deleted';
my $ret = &Apache::lonnet::cput('slots', {$slot_name => \%slot},
$cdom, $cnum);
if ($ret eq 'ok') {
$r->print("<p>Slot <tt>$slot_name</tt> marked as deleted.</p>");
} else {
$r->print("<p><span class=\"LC_error\"> An error ($ret) occurse when attempting to delete Slot <tt>$slot_name</tt>.</span></p>");
}
} else {
if (%consumed) {
$r->print("<p>Slot <tt>$slot_name</tt> has active reservations.</p>");
} else {
$r->print("<p>Slot <tt>$slot_name</tt> does not exist.</p>");
}
}
$r->print('<p><a href="/adm/slotrequest?command=showslots">'.
&mt('Return to slot list').'</a></p>');
&return_link($r);
}
sub return_link {
my ($r) = @_;
$r->print('<p><a href="/adm/flip?postdata=return:">'.
&mt('Return to last resource').'</a></p>');
}
sub get_slot {
my ($r,$symb,$conflictable_slot,$inhibit_return_link)=@_;
my %slot=&Apache::lonnet::get_slot($env{'form.slotname'});
my $slot_name=&check_for_conflict($symb,$env{'form.slotname'},\%slot);
if ($slot_name =~ /^error: (.*)/) {
$r->print("<p><span class=\"LC_error\">An error occured while attempting to make a reservation. ($1)</span></p>");
&return_link($r);
return 0;
}
if ($slot_name && $slot_name ne $conflictable_slot) {
my %slot=&Apache::lonnet::get_slot($slot_name);
my $description1=&get_description($slot_name,\%slot);
%slot=&Apache::lonnet::get_slot($env{'form.slotname'});
my $description2=&get_description($env{'form.slotname'},\%slot);
$r->print("<p>Already have a reservation: $description1</p>");
if ($slot_name ne $env{'form.slotname'}) {
$r->print(<<STUFF);
<form method="post" action="/adm/slotrequest">
<input type="hidden" name="symb" value="$env{'form.symb'}" />
<input type="hidden" name="slotname" value="$env{'form.slotname'}" />
<input type="hidden" name="releaseslot" value="$slot_name" />
<input type="hidden" name="command" value="change" />
STUFF
$r->print("<p>You can either ");
$r->print(<<STUFF);
<input type="submit" name="change" value="Change" />
STUFF
$r->print(' your reservation from <b>'.$description1.'</b> to <b>'.
$description2.
'</b> <br />or </p>');
&return_link($r);
$r->print(<<STUFF);
</form>
STUFF
} else {
&return_link($r);
}
return 0;
}
my $reserved=&make_reservation($env{'form.slotname'},
\%slot,$symb);
my $description=&get_description($env{'form.slotname'},\%slot);
if (defined($reserved)) {
my $retvalue = 0;
if ($slot_name =~ /^error: (.*)/) {
$r->print("<p><span class=\"LC_error\">An error occured while attempting to make a reservation. ($1)</span></p>");
} elsif ($reserved > -1) {
$r->print("<p>Success: $description</p>");
$retvalue = 1;
} elsif ($reserved < 0) {
$r->print("<p>Already reserved: $description</p>");
}
if (!$inhibit_return_link) { &return_link($r); }
return 1;
}
my %lt=('request'=>"Availibility list",
'try' =>'Try again');
%lt=&Apache::lonlocal::texthash(%lt);
my $extra_input;
if ($conflictable_slot) {
$extra_input='<input type="hidden" name="releaseslot" value="'.$env{'form.slotname'}.'" />';
}
$r->print(<<STUFF);
<p> <span class="LC_warning">Failed</span> to reserve a spot for $description. </p>
<p>
<form method="post" action="/adm/slotrequest">
<input type="submit" name="Try Again" value="$lt{'try'}" />
<input type="hidden" name="symb" value="$env{'form.symb'}" />
<input type="hidden" name="slotname" value="$env{'form.slotname'}" />
<input type="hidden" name="command" value="$env{'form.command'}" />
$extra_input
</form>
?
</p>
<p>
or
<form method="post" action="/adm/slotrequest">
<input type="hidden" name="symb" value="$env{'form.symb'}" />
<input type="submit" name="requestattempt" value="$lt{'request'}" />
</form>
</p>
or
STUFF
if (!$inhibit_return_link) { &return_link($r); }
return 0;
}
sub allowed_slot {
my ($slot_name,$slot,$symb,$slots,$consumed_uniqueperiods)=@_;
#already started
if ($slot->{'starttime'} < time) {
return 0;
}
&Apache::lonxml::debug("$slot_name starttime good");
#already ended
if ($slot->{'endtime'} < time) {
return 0;
}
&Apache::lonxml::debug("$slot_name endtime good");
# not allowed to pick this one
if (defined($slot->{'type'})
&& $slot->{'type'} ne 'schedulable_student') {
return 0;
}
&Apache::lonxml::debug("$slot_name type good");
# reserve time not yet started
if ($slot->{'startreserve'} > time) {
return 0;
}
&Apache::lonxml::debug("$slot_name reserve good");
my $userallowed=0;
# its for a different set of users
if (defined($slot->{'allowedsections'})) {
if (!defined($env{'request.role.sec'})
&& grep(/^No section assigned$/,
split(',',$slot->{'allowedsections'}))) {
$userallowed=1;
}
if (defined($env{'request.role.sec'})
&& grep(/^\Q$env{'request.role.sec'}\E$/,
split(',',$slot->{'allowedsections'}))) {
$userallowed=1;
}
if (defined($env{'request.course.groups'})) {
my @groups = split(/:/,$env{'request.course.groups'});
my @allowed_sec = split(',',$slot->{'allowedsections'});
foreach my $group (@groups) {
if (grep {$_ eq $group} (@allowed_sec)) {
$userallowed=1;
last;
}
}
}
}
&Apache::lonxml::debug("$slot_name sections is $userallowed");
# its for a different set of users
if (defined($slot->{'allowedusers'})
&& grep(/^\Q$env{'user.name'}:$env{'user.domain'}\E$/,
split(',',$slot->{'allowedusers'}))) {
$userallowed=1;
}
if (!defined($slot->{'allowedusers'})
&& !defined($slot->{'allowedsections'})) {
$userallowed=1;
}
&Apache::lonxml::debug("$slot_name user is $userallowed");
return 0 if (!$userallowed);
# not allowed for this resource
if (defined($slot->{'symb'})
&& $slot->{'symb'} ne $symb) {
return 0;
}
my $conflict = &check_for_conflict($symb,$slot_name,$slot,$slots,
$consumed_uniqueperiods);
if ($conflict) {
if ($slots->{$conflict}{'starttime'} < time) {
return 0;
}
}
&Apache::lonxml::debug("$slot_name symb good");
return 1;
}
sub get_description {
my ($slot_name,$slot)=@_;
my $description=$slot->{'description'};
if (!defined($description)) {
$description=&mt('[_1] From [_2] to [_3]',$slot_name,
&Apache::lonlocal::locallocaltime($slot->{'starttime'}),
&Apache::lonlocal::locallocaltime($slot->{'endtime'}));
}
return $description;
}
sub show_choices {
my ($r,$symb)=@_;
my ($cnum,$cdom)=&get_course();
my %slots=&Apache::lonnet::dump('slots',$cdom,$cnum);
my $consumed_uniqueperiods = &get_consumed_uniqueperiods(\%slots);
my $available;
$r->print('<table border="1">');
&Apache::lonxml::debug("Checking Slots");
my @got_slots=&check_for_reservation($symb,'allslots');
foreach my $slot (sort
{ return $slots{$a}->{'starttime'} <=> $slots{$b}->{'starttime'} }
(keys(%slots))) {
&Apache::lonxml::debug("Checking Slot $slot");
next if (!&allowed_slot($slot,$slots{$slot},undef,\%slots,
$consumed_uniqueperiods));
$available++;
my $description=&get_description($slot,$slots{$slot});
my $form=&mt('Unavailable');
if ((grep(/^\Q$slot\E$/,@got_slots)) ||
&space_available($slot,$slots{$slot},$symb)) {
my $text=&mt('Select');
my $command='get';
if (grep(/^\Q$slot\E$/,@got_slots)) {
$text=&mt('Drop Reservation');
$command='release';
} else {
my $conflict = &check_for_conflict($symb,$slot,$slots{$slot},
\%slots,
$consumed_uniqueperiods);
if ($conflict) {
$text=&mt('Change Reservation');
$command='get';
}
}
my $escsymb=&escape($symb);
$form=<<STUFF;
<form method="post" action="/adm/slotrequest">
<input type="submit" name="Select" value="$text" />
<input type="hidden" name="symb" value="$escsymb" />
<input type="hidden" name="slotname" value="$slot" />
<input type="hidden" name="command" value="$command" />
</form>
STUFF
}
$r->print(<<STUFF);
<tr>
<td>$form</td>
<td>$description</td>
</tr>
STUFF
}
if (!$available) {
$r->print('<tr><td>No available times. <a href="/adm/flip?postdata=return:">'.
&mt('Return to last resource').'</a></td></tr>');
}
$r->print('</table>');
}
sub to_show {
my ($slotname,$slot,$when,$deleted,$name) = @_;
my $time=time;
my $week=60*60*24*7;
if ($deleted eq 'hide' && $slot->{'type'} eq 'deleted') {
return 0;
}
if ($name && $name->{'value'} =~ /\w/) {
if ($name->{'type'} eq 'substring') {
if ($slotname !~ /\Q$name->{'value'}\E/) {
return 0;
}
}
if ($name->{'type'} eq 'exact') {
if ($slotname eq $name->{'value'}) {
return 0;
}
}
}
if ($when eq 'any') {
return 1;
} elsif ($when eq 'now') {
if ($time > $slot->{'starttime'} &&
$time < $slot->{'endtime'}) {
return 1;
}
return 0;
} elsif ($when eq 'nextweek') {
if ( ($time < $slot->{'starttime'} &&
($time+$week) > $slot->{'starttime'})
||
($time < $slot->{'endtime'} &&
($time+$week) > $slot->{'endtime'}) ) {
return 1;
}
return 0;
} elsif ($when eq 'lastweek') {
if ( ($time > $slot->{'starttime'} &&
($time-$week) < $slot->{'starttime'})
||
($time > $slot->{'endtime'} &&
($time-$week) < $slot->{'endtime'}) ) {
return 1;
}
return 0;
} elsif ($when eq 'willopen') {
if ($time < $slot->{'starttime'}) {
return 1;
}
return 0;
} elsif ($when eq 'wereopen') {
if ($time > $slot->{'endtime'}) {
return 1;
}
return 0;
}
return 1;
}
sub remove_link {
my ($slotname,$entry,$uname,$udom,$symb) = @_;
my $remove = &mt('Remove');
if ($entry eq 'remove all') {
$remove = &mt('Remove All');
undef($uname);
undef($udom);
}
$slotname = &escape($slotname);
$entry = &escape($entry);
$uname = &escape($uname);
$udom = &escape($udom);
$symb = &escape($symb);
return <<"END_LINK";
<a href="/adm/slotrequest?command=remove_registration&slotname=$slotname&entry=$entry&uname=$uname&udom=$udom&symb=$symb"
>($remove)</a>
END_LINK
}
sub show_table {
my ($r,$mgr)=@_;
my ($cnum,$cdom)=&get_course();
my %slots=&Apache::lonnet::dump('slots',$cdom,$cnum);
if ( (keys(%slots))[0] =~ /^error: 2 /) {
undef(%slots);
}
my $available;
if ($mgr eq 'F') {
# FIXME: This line should be deleted once Slots uses breadcrumbs
$r->print(&Apache::loncommon::help_open_topic('Slot About', 'Help on slots'));
$r->print('<div>');
$r->print('<form method="post" action="/adm/slotrequest">
<input type="hidden" name="command" value="uploadstart" />
<input type="submit" name="start" value="'.&mt('Upload Slot List').'" />
</form>');
$r->print(&Apache::loncommon::help_open_topic('Slot CommaDelimited'));
$r->print('<form method="post" action="/adm/helper/newslot.helper">
<input type="submit" name="newslot" value="'.&mt('Create a New Slot').'" />
</form>');
$r->print(&Apache::loncommon::help_open_topic('Slot AddInterface'));
$r->print('</div>');
}
my %Saveable_Parameters = ('show' => 'array',
'when' => 'scalar',
'order' => 'scalar',
'deleted' => 'scalar',
'name_filter_type' => 'scalar',
'name_filter_value' => 'scalar',
);
&Apache::loncommon::store_course_settings('slotrequest',
\%Saveable_Parameters);
&Apache::loncommon::restore_course_settings('slotrequest',
\%Saveable_Parameters);
&Apache::grades::init_perm();
my ($classlist,$section,$fullname)=&Apache::grades::getclasslist('all');
&Apache::grades::reset_perm();
# what to display filtering
my %show_fields=&Apache::lonlocal::texthash(
'name' => 'Slot Name',
'description' => 'Description',
'type' => 'Type',
'starttime' => 'Start time',
'endtime' => 'End Time',
'startreserve' => 'Time students can start reserving',
'secret' => 'Secret Word',
'space' => '# of students/max',
'ip' => 'IP or DNS restrictions',
'symb' => 'Resource slot is restricted to.',
'allowedsections' => 'Sections slot is restricted to.',
'allowedusers' => 'Users slot is restricted to.',
'uniqueperiod' => 'Period of time slot is unique',
'scheduled' => 'Scheduled Students',
'proctor' => 'List of proctors');
my @show_order=('name','description','type','starttime','endtime',
'startreserve','secret','space','ip','symb',
'allowedsections','allowedusers','uniqueperiod',
'scheduled','proctor');
my @show =
(exists($env{'form.show'})) ? &Apache::loncommon::get_env_multiple('form.show')
: keys(%show_fields);
my %show = map { $_ => 1 } (@show);
#when filtering setup
my %when_fields=&Apache::lonlocal::texthash(
'now' => 'Open now',
'nextweek' => 'Open within the next week',
'lastweek' => 'Were open last week',
'willopen' => 'Will open later',
'wereopen' => 'Were open',
'any' => 'Anytime',
);
my @when_order=('any','now','nextweek','lastweek','willopen','wereopen');
$when_fields{'select_form_order'} = \@when_order;
my $when = (exists($env{'form.when'})) ? $env{'form.when'}
: 'now';
#display of students setup
my %stu_display_fields=
&Apache::lonlocal::texthash('username' => 'User name',
'fullname' => 'Full name',
);
my @stu_display_order=('fullname','username');
my @stu_display =
(exists($env{'form.studisplay'})) ? &Apache::loncommon::get_env_multiple('form.studisplay')
: keys(%stu_display_fields);
my %stu_display = map { $_ => 1 } (@stu_display);
#name filtering setup
my %name_filter_type_fields=
&Apache::lonlocal::texthash('substring' => 'Substring',
'exact' => 'Exact',
#'reg' => 'Regular Expression',
);
my @name_filter_type_order=('substring','exact');
$name_filter_type_fields{'select_form_order'} = \@name_filter_type_order;
my $name_filter_type =
(exists($env{'form.name_filter_type'})) ? $env{'form.name_filter_type'}
: 'substring';
my $name_filter = {'type' => $name_filter_type,
'value' => $env{'form.name_filter_value'},};
#deleted slot filtering
#default to hide if no value
$env{'form.deleted'} ||= 'hide';
my $hide_radio =
&Apache::lonhtmlcommon::radio('deleted',$env{'form.deleted'},'hide');
my $show_radio =
&Apache::lonhtmlcommon::radio('deleted',$env{'form.deleted'},'show');
$r->print('<form method="post" action="/adm/slotrequest">
<input type="hidden" name="command" value="showslots" />');
$r->print('<div>');
$r->print('<table class="inline">
<tr><th>'.&mt('Show').'</th>
<th>'.&mt('Student Display').'</th>
<th>'.&mt('Open').'</th>
<th>'.&mt('Slot Name Filter').'</th>
<th>'.&mt('Options').'</th>
</tr>
<tr><td>'.&Apache::loncommon::multiple_select_form('show',\@show,6,\%show_fields,\@show_order).
'</td>
<td>
'.&Apache::loncommon::multiple_select_form('studisplay',\@stu_display,
6,\%stu_display_fields,
\@stu_display_order).'
</td>
<td>'.&Apache::loncommon::select_form($when,'when',%when_fields).
'</td>
<td>'.&Apache::loncommon::select_form($name_filter_type,
'name_filter_type',
%name_filter_type_fields).
'<br />'.
&Apache::lonhtmlcommon::textbox('name_filter_value',
$env{'form.name_filter_value'},
15).
'</td>
<td>
<table>
<tr>
<td rowspan="2">Deleted slots:</td>
<td><label>'.$show_radio.'Show</label></td>
</tr>
<tr>
<td><label>'.$hide_radio.'Hide</label></td>
</tr>
</table>
</td>
</tr>
</table>');
$r->print('</div>');
$r->print('<p><input type="submit" name="start" value="'.&mt('Update Display').'" /></p>');
my $linkstart='<a href="/adm/slotrequest?command=showslots&order=';
$r->print(&Apache::loncommon::start_data_table().
&Apache::loncommon::start_data_table_header_row().'
<th></th>');
foreach my $which (@show_order) {
if ($which ne 'proctor' && exists($show{$which})) {
$r->print('<th>'.$linkstart.$which.'">'.$show_fields{$which}.'</a></th>');
}
}
$r->print(&Apache::loncommon::end_data_table_header_row());
my %name_cache;
my $slotsort = sub {
if ($env{'form.order'}=~/^(type|description|endtime|startreserve|ip|symb|allowedsections|allowedusers)$/) {
if (lc($slots{$a}->{$env{'form.order'}})
ne lc($slots{$b}->{$env{'form.order'}})) {
return (lc($slots{$a}->{$env{'form.order'}})
cmp lc($slots{$b}->{$env{'form.order'}}));
}
} elsif ($env{'form.order'} eq 'space') {
if ($slots{$a}{'maxspace'} ne $slots{$b}{'maxspace'}) {
return ($slots{$a}{'maxspace'} cmp $slots{$b}{'maxspace'});
}
} elsif ($env{'form.order'} eq 'name') {
if (lc($a) cmp lc($b)) {
return lc($a) cmp lc($b);
}
} elsif ($env{'form.order'} eq 'uniqueperiod') {
if ($slots{$a}->{'uniqueperiod'}[0]
ne $slots{$b}->{'uniqueperiod'}[0]) {
return ($slots{$a}->{'uniqueperiod'}[0]
cmp $slots{$b}->{'uniqueperiod'}[0]);
}
if ($slots{$a}->{'uniqueperiod'}[1]
ne $slots{$b}->{'uniqueperiod'}[1]) {
return ($slots{$a}->{'uniqueperiod'}[1]
cmp $slots{$b}->{'uniqueperiod'}[1]);
}
}
return $slots{$a}->{'starttime'} <=> $slots{$b}->{'starttime'};
};
my %consumed;
if (exists($show{'scheduled'}) || exists($show{'space'}) ) {
%consumed=&Apache::lonnet::dump('slot_reservations',$cdom,$cnum);
my ($tmp)=%consumed;
if ($tmp =~ /^error: /) { undef(%consumed); }
}
foreach my $slot (sort $slotsort (keys(%slots))) {
if (!&to_show($slot,$slots{$slot},$when,
$env{'form.deleted'},$name_filter)) { next; }
if (defined($slots{$slot}->{'type'})
&& $slots{$slot}->{'type'} ne 'schedulable_student') {
#next;
}
my $description=&get_description($slot,$slots{$slot});
my ($id_count,$ids);
if (exists($show{'scheduled'}) || exists($show{'space'}) ) {
my $re_str = "$slot\0";
my @this_slot = grep(/^\Q$re_str\E/,keys(%consumed));
$id_count = scalar(@this_slot);
if (exists($show{'scheduled'})) {
foreach my $entry (sort { $consumed{$a}{name} cmp
$consumed{$b}{name} }
(@this_slot)) {
my (undef,$id)=split("\0",$entry);
my ($uname,$udom) = split(':',$consumed{$entry}{'name'});
$ids.= '<nobr>';
foreach my $item (@stu_display_order) {
if ($stu_display{$item}) {
if ($item eq 'fullname') {
$ids.=$fullname->{"$uname:$udom"}.' ';
} elsif ($item eq 'username') {
$ids.="<tt>$uname:$udom</tt> ";
}
}
}
$ids.=&remove_link($slot,$entry,$uname,$udom,
$consumed{$entry}{'symb'}).'</nobr><br />';
}
}
}
my $start=($slots{$slot}->{'starttime'}?
&Apache::lonlocal::locallocaltime($slots{$slot}->{'starttime'}):'');
my $end=($slots{$slot}->{'endtime'}?
&Apache::lonlocal::locallocaltime($slots{$slot}->{'endtime'}):'');
my $start_reserve=($slots{$slot}->{'startreserve'}?
&Apache::lonlocal::locallocaltime($slots{$slot}->{'startreserve'}):'');
my $unique;
if (ref($slots{$slot}{'uniqueperiod'})) {
$unique=localtime($slots{$slot}{'uniqueperiod'}[0]).', '.
localtime($slots{$slot}{'uniqueperiod'}[1]);
}
my $title;
if (exists($slots{$slot}{'symb'})) {
my (undef,undef,$res)=
&Apache::lonnet::decode_symb($slots{$slot}{'symb'});
$res = &Apache::lonnet::clutter($res);
$title = &Apache::lonnet::gettitle($slots{$slot}{'symb'});
$title='<a href="'.$res.'?symb='.$slots{$slot}{'symb'}.'">'.$title.'</a>';
}
my $allowedsections;
if (exists($show{'allowedsections'})) {
$allowedsections =
join(', ',sort(split(/\s*,\s*/,
$slots{$slot}->{'allowedsections'})));
}
my @allowedusers;
if (exists($show{'allowedusers'})) {
@allowedusers= map {
my ($uname,$udom)=split(/:/,$_);
my $fullname=$name_cache{$_};
if (!defined($fullname)) {
$fullname = &Apache::loncommon::plainname($uname,$udom);
$fullname =~s/\s/ /g;
$name_cache{$_} = $fullname;
}
&Apache::loncommon::aboutmewrapper($fullname,$uname,$udom);
} (sort(split(/\s*,\s*/,$slots{$slot}->{'allowedusers'})));
}
my $allowedusers=join(', ',@allowedusers);
my @proctors;
my $rowspan=1;
my $colspan=1;
if (exists($show{'proctor'})) {
$rowspan=2;
@proctors= map {
my ($uname,$udom)=split(/:/,$_);
my $fullname=$name_cache{$_};
if (!defined($fullname)) {
$fullname = &Apache::loncommon::plainname($uname,$udom);
$fullname =~s/\s/ /g;
$name_cache{$_} = $fullname;
}
&Apache::loncommon::aboutmewrapper($fullname,$uname,$udom);
} (sort(split(/\s*,\s*/,$slots{$slot}->{'proctor'})));
}
my $proctors=join(', ',@proctors);
my $edit=(<<"EDITLINK");
<a href="/adm/helper/newslot.helper?name=$slot">Edit</a>
EDITLINK
my $delete=(<<"DELETELINK");
<a href="/adm/slotrequest?command=delete&slotname=$slot">Delete</a>
DELETELINK
my $remove_all=&remove_link($slot,'remove all').'<br />';
if ($ids ne '') { undef($delete); }
if ($slots{$slot}{'type'} ne 'schedulable_student'
|| $ids eq '') {
undef($remove_all);
}
my $row_start=&Apache::loncommon::start_data_table_row();
my $row_end=&Apache::loncommon::end_data_table_row();
$r->print($row_start.
"\n<td rowspan=\"$rowspan\">$edit $delete</td>\n");
if (exists($show{'name'})) {
$colspan++;$r->print("<td>$slot</td>");
}
if (exists($show{'description'})) {
$colspan++;$r->print("<td>$description</td>\n");
}
if (exists($show{'type'})) {
$colspan++;$r->print("<td>$slots{$slot}->{'type'}</td>\n");
}
if (exists($show{'starttime'})) {
$colspan++;$r->print("<td>$start</td>\n");
}
if (exists($show{'endtime'})) {
$colspan++;$r->print("<td>$end</td>\n");
}
if (exists($show{'startreserve'})) {
$colspan++;$r->print("<td>$start_reserve</td>\n");
}
if (exists($show{'secret'})) {
$colspan++;$r->print("<td>$slots{$slot}{'secret'}</td>\n");
}
if (exists($show{'space'})) {
my $display = $id_count;
if ($slots{$slot}{'maxspace'}>0) {
$display.='/'.$slots{$slot}{'maxspace'};
if ($slots{$slot}{'maxspace'} <= $id_count) {
$display = '<strong>'.$display.' (full) </strong>';
}
}
$colspan++;$r->print("<td>$display</td>\n");
}
if (exists($show{'ip'})) {
$colspan++;$r->print("<td>$slots{$slot}{'ip'}</td>\n");
}
if (exists($show{'symb'})) {
$colspan++;$r->print("<td>$title</td>\n");
}
if (exists($show{'allowedsections'})) {
$colspan++;$r->print("<td>$allowedsections</td>\n");
}
if (exists($show{'allowedusers'})) {
$colspan++;$r->print("<td>$allowedusers</td>\n");
}
if (exists($show{'uniqueperiod'})) {
$colspan++;$r->print("<td>$unique</td>\n");
}
if (exists($show{'scheduled'})) {
$colspan++;$r->print("<td>$remove_all $ids</td>\n");
}
$r->print("$row_end\n");
if (exists($show{'proctor'})) {
$r->print(<<STUFF);
$row_start
<td colspan="$colspan">$proctors</td>
$row_end
STUFF
}
}
$r->print('</table></form>');
}
sub upload_start {
my ($r)=@_;
$r->print(&Apache::grades::checkforfile_js());
my $result.='<table width=100% border=0><tr bgcolor="#e6ffff"><td>'."\n";
$result.=' <b>'.
&mt('Specify a file containing the slot definitions.').
'</b></td></tr>'."\n";
$result.='<tr bgcolor=#ffffe6><td>'."\n";
my $upfile_select=&Apache::loncommon::upfile_select_html();
my $ignore=&mt('Ignore First Line');
$result.=<<ENDUPFORM;
<form method="post" enctype="multipart/form-data" action="/adm/slotrequest" name="slotupload">
<input type="hidden" name="command" value="csvuploadmap" />
$upfile_select
<br /><input type="button" onClick="javascript:checkUpload(this.form);" value="Upload Data" />
<label><input type="checkbox" name="noFirstLine" />$ignore</label>
</form>
ENDUPFORM
$result.='</td></tr></table>'."\n";
$result.='</td></tr></table>'."\n";
$r->print($result);
}
sub csvuploadmap_header {
my ($r,$datatoken,$distotal)= @_;
my $javascript;
if ($env{'form.upfile_associate'} eq 'reverse') {
$javascript=&csvupload_javascript_reverse_associate();
} else {
$javascript=&csvupload_javascript_forward_associate();
}
my $checked=(($env{'form.noFirstLine'})?' checked="checked"':'');
my $ignore=&mt('Ignore First Line');
my $help_field = &Apache::loncommon::help_open_topic('Slot SelectingField');
$r->print(<<ENDPICK);
<form method="post" enctype="multipart/form-data" action="/adm/slotrequest" name="slotupload">
<h3>Identify fields $help_field</h3>
Total number of records found in file: $distotal <hr />
Enter as many fields as you can. The system will inform you and bring you back
to this page if the data selected is insufficient to create the slots.<hr />
<input type="button" value="Reverse Association" onClick="javascript:this.form.associate.value='Reverse Association';submit(this.form);" />
<label><input type="checkbox" name="noFirstLine" $checked />$ignore</label>
<input type="hidden" name="associate" value="" />
<input type="hidden" name="datatoken" value="$datatoken" />
<input type="hidden" name="fileupload" value="$env{'form.fileupload'}" />
<input type="hidden" name="upfiletype" value="$env{'form.upfiletype'}" />
<input type="hidden" name="upfile_associate"
value="$env{'form.upfile_associate'}" />
<input type="hidden" name="command" value="csvuploadassign" />
<hr />
<script type="text/javascript" language="Javascript">
$javascript
</script>
ENDPICK
return '';
}
sub csvuploadmap_footer {
my ($request,$i,$keyfields) =@_;
$request->print(<<ENDPICK);
</table>
<input type="hidden" name="nfields" value="$i" />
<input type="hidden" name="keyfields" value="$keyfields" />
<input type="button" onClick="javascript:verify(this.form)" value="Create Slots" /><br />
</form>
ENDPICK
}
sub csvupload_javascript_reverse_associate {
my $error1=&mt('You need to specify the name, starttime, endtime and a type');
return(<<ENDPICK);
function verify(vf) {
var foundstart=0;
var foundend=0;
var foundname=0;
var foundtype=0;
for (i=0;i<=vf.nfields.value;i++) {
tw=eval('vf.f'+i+'.selectedIndex');
if (i==0 && tw!=0) { foundname=1; }
if (i==1 && tw!=0) { foundtype=1; }
if (i==2 && tw!=0) { foundstat=1; }
if (i==3 && tw!=0) { foundend=1; }
}
if (foundstart==0 && foundend==0 && foundtype==0 && foundname==0) {
alert('$error1');
return;
}
vf.submit();
}
function flip(vf,tf) {
}
ENDPICK
}
sub csvupload_javascript_forward_associate {
my $error1=&mt('You need to specify the name, starttime, endtime and a type');
return(<<ENDPICK);
function verify(vf) {
var foundstart=0;
var foundend=0;
var foundname=0;
var foundtype=0;
for (i=0;i<=vf.nfields.value;i++) {
tw=eval('vf.f'+i+'.selectedIndex');
if (tw==1) { foundname=1; }
if (tw==2) { foundtype=1; }
if (tw==3) { foundstat=1; }
if (tw==4) { foundend=1; }
}
if (foundstart==0 && foundend==0 && foundtype==0 && foundname==0) {
alert('$error1');
return;
}
vf.submit();
}
function flip(vf,tf) {
}
ENDPICK
}
sub csv_upload_map {
my ($r)= @_;
my $datatoken;
if (!$env{'form.datatoken'}) {
$datatoken=&Apache::loncommon::upfile_store($r);
} else {
$datatoken=$env{'form.datatoken'};
&Apache::loncommon::load_tmp_file($r);
}
my @records=&Apache::loncommon::upfile_record_sep();
if ($env{'form.noFirstLine'}) { shift(@records); }
&csvuploadmap_header($r,$datatoken,$#records+1);
my ($i,$keyfields);
if (@records) {
my @fields=&csvupload_fields();
if ($env{'form.upfile_associate'} eq 'reverse') {
&Apache::loncommon::csv_print_samples($r,\@records);
$i=&Apache::loncommon::csv_print_select_table($r,\@records,
\@fields);
foreach (@fields) { $keyfields.=$_->[0].','; }
chop($keyfields);
} else {
unshift(@fields,['none','']);
$i=&Apache::loncommon::csv_samples_select_table($r,\@records,
\@fields);
my %sone=&Apache::loncommon::record_sep($records[0]);
$keyfields=join(',',sort(keys(%sone)));
}
}
&csvuploadmap_footer($r,$i,$keyfields);
return '';
}
sub csvupload_fields {
return (['name','Slot name'],
['type','Type of slot'],
['starttime','Start Time of slot'],
['endtime','End Time of slot'],
['startreserve','Reservation Start Time'],
['ip','IP or DNS restriction'],
['proctor','List of proctor ids'],
['description','Slot Description'],
['maxspace','Maximum number of reservations'],
['symb','Resource Restriction'],
['uniqueperiod','Date range of slot exclusion'],
['secret','Secret word proctor uses to validate'],
['allowedsections','Sections slot is restricted to'],
['allowedusers','Users slot is restricted to'],
);
}
sub csv_upload_assign {
my ($r,$mgr)= @_;
&Apache::loncommon::load_tmp_file($r);
my @slotdata = &Apache::loncommon::upfile_record_sep();
if ($env{'form.noFirstLine'}) { shift(@slotdata); }
my %fields=&Apache::grades::get_fields();
$r->print('<h3>Creating Slots</h3>');
my $cname=$env{'course.'.$env{'request.course.id'}.'.num'};
my $cdom=$env{'course.'.$env{'request.course.id'}.'.domain'};
my $countdone=0;
my @errors;
foreach my $slot (@slotdata) {
my %slot;
my %entries=&Apache::loncommon::record_sep($slot);
my $domain;
my $name=$entries{$fields{'name'}};
if ($name=~/^\s*$/) {
push(@errors,"Did not create slot with no name");
next;
}
if ($name=~/\s/) {
push(@errors,"$name not created -- Name must not contain spaces");
next;
}
if ($name=~/\W/) {
push(@errors,"$name not created -- Name must contain only letters, numbers and _");
next;
}
if ($entries{$fields{'type'}}) {
$slot{'type'}=$entries{$fields{'type'}};
} else {
$slot{'type'}='preassigned';
}
if ($slot{'type'} ne 'preassigned' &&
$slot{'type'} ne 'schedulable_student') {
push(@errors,"$name not created -- invalid type ($slot{'type'}) must be either preassigned or schedulable_student");
next;
}
if ($entries{$fields{'starttime'}}) {
$slot{'starttime'}=&UnixDate($entries{$fields{'starttime'}},"%s");
}
if ($entries{$fields{'endtime'}}) {
$slot{'endtime'}=&UnixDate($entries{$fields{'endtime'}},"%s");
}
# start/endtime must be defined and greater than zero
if (!$slot{'starttime'}) {
push(@errors,"$name not created -- Invalid start time");
next;
}
if (!$slot{'endtime'}) {
push(@errors,"$name not created -- Invalid end time");
next;
}
if ($slot{'starttime'} > $slot{'endtime'}) {
push(@errors,"$name not created -- Slot starts after it ends");
next;
}
if ($entries{$fields{'startreserve'}}) {
$slot{'startreserve'}=
&UnixDate($entries{$fields{'startreserve'}},"%s");
}
if (defined($slot{'startreserve'})
&& $slot{'startreserve'} > $slot{'starttime'}) {
push(@errors,"$name not created -- Slot's reservation start time is after the slot's start time.");
next;
}
foreach my $key ('ip','proctor','description','maxspace',
'secret','symb') {
if ($entries{$fields{$key}}) {
$slot{$key}=$entries{$fields{$key}};
}
}
if ($entries{$fields{'uniqueperiod'}}) {
my ($start,$end)=split(',',$entries{$fields{'uniqueperiod'}});
my @times=(&UnixDate($start,"%s"),
&UnixDate($end,"%s"));
$slot{'uniqueperiod'}=\@times;
}
if (defined($slot{'uniqueperiod'})
&& $slot{'uniqueperiod'}[0] > $slot{'uniqueperiod'}[1]) {
push(@errors,"$name not created -- Slot's unique period start time is later than the unique period's end time.");
next;
}
&Apache::lonnet::cput('slots',{$name=>\%slot},$cdom,$cname);
$r->print('.');
$r->rflush();
$countdone++;
}
$r->print("<p>Created $countdone slots\n</p>");
foreach my $error (@errors) {
$r->print("<p><span class=\"LC_warning\">$error</span></p>\n");
}
&show_table($r,$mgr);
return '';
}
sub handler {
my $r=shift;
&Apache::loncommon::content_type($r,'text/html');
&Apache::loncommon::no_cache($r);
if ($r->header_only()) {
$r->send_http_header();
return OK;
}
&Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'});
my $vgr=&Apache::lonnet::allowed('vgr',$env{'request.course.id'});
my $mgr=&Apache::lonnet::allowed('mgr',$env{'request.course.id'});
my $title='Requesting Another Worktime';
if ($env{'form.command'} =~ /^(showslots|uploadstart|csvuploadmap|csvuploadassign)$/ && $vgr eq 'F') {
$title = 'Managing Slots';
}
&start_page($r,$title);
if ($env{'form.command'} eq 'showslots' && $vgr eq 'F') {
&show_table($r,$mgr);
} elsif ($env{'form.command'} eq 'remove_registration' && $mgr eq 'F') {
&remove_registration($r);
} elsif ($env{'form.command'} eq 'release' && $mgr eq 'F') {
if ($env{'form.entry'} eq 'remove all') {
&release_all_slot($r,$mgr);
} else {
&release_slot($r,undef,undef,undef,$mgr);
}
} elsif ($env{'form.command'} eq 'delete' && $mgr eq 'F') {
&delete_slot($r);
} elsif ($env{'form.command'} eq 'uploadstart' && $mgr eq 'F') {
&upload_start($r);
} elsif ($env{'form.command'} eq 'csvuploadmap' && $mgr eq 'F') {
&csv_upload_map($r);
} elsif ($env{'form.command'} eq 'csvuploadassign' && $mgr eq 'F') {
if ($env{'form.associate'} ne 'Reverse Association') {
&csv_upload_assign($r,$mgr);
} else {
if ( $env{'form.upfile_associate'} ne 'reverse' ) {
$env{'form.upfile_associate'} = 'reverse';
} else {
$env{'form.upfile_associate'} = 'forward';
}
&csv_upload_map($r);
}
} else {
my $symb=&unescape($env{'form.symb'});
if (!defined($symb)) {
&fail($r,'not_valid');
return OK;
}
my (undef,undef,$res)=&Apache::lonnet::decode_symb($symb);
my $useslots = &Apache::lonnet::EXT("resource.0.useslots",$symb);
if ($useslots ne 'resource'
&& $useslots ne 'map'
&& $useslots ne 'map_map') {
&fail($r,'not_available');
return OK;
}
$env{'request.symb'}=$symb;
my $type = ($res =~ /\.task$/) ? 'Task'
: 'problem';
my ($status) = &Apache::lonhomework::check_slot_access('0',$type);
if ($status eq 'CAN_ANSWER' ||
$status eq 'NEEDS_CHECKIN' ||
$status eq 'WAITING_FOR_GRADE') {
&fail($r,'not_allowed');
return OK;
}
if ($env{'form.requestattempt'}) {
&show_choices($r,$symb);
} elsif ($env{'form.command'} eq 'release') {
&release_slot($r,$symb);
} elsif ($env{'form.command'} eq 'get') {
&get_slot($r,$symb);
} elsif ($env{'form.command'} eq 'change') {
if (&get_slot($r,$symb,$env{'form.releaseslot'},1)) {
&release_slot($r,$symb,$env{'form.releaseslot'});
}
} else {
$r->print("<p>Unknown command: ".$env{'form.command'}."</p>");
}
}
&end_page($r);
return OK;
}
1;
__END__
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