--- loncom/interface/slotrequest.pm 2005/06/04 07:44:48 1.3 +++ loncom/interface/slotrequest.pm 2020/04/08 20:06:59 1.125.2.3.4.2 @@ -1,7 +1,7 @@ # The LearningOnline Network with CAPA # Handler for requesting to have slots added to a students record # -# $Id: slotrequest.pm,v 1.3 2005/06/04 07:44:48 albertel Exp $ +# $Id: slotrequest.pm,v 1.125.2.3.4.2 2020/04/08 20:06:59 raeburn Exp $ # # Copyright Michigan State University Board of Trustees # @@ -34,31 +34,239 @@ use Apache::Constants qw(:common :http : use Apache::loncommon(); use Apache::lonlocal; use Apache::lonnet; +use Apache::lonnavmaps(); +use Date::Manip; +use lib '/home/httpd/lib/perl/'; +use LONCAPA qw(:DEFAULT :match); sub fail { my ($r,$code)=@_; if ($code eq 'not_valid') { - $r->print('

'.&mt('Unable to understand what resource you wanted to sign up for.').'

'.$env{'form.symb'}); - + $r->print('

'.&mt('Unable to understand what resource you wanted to sign up for.').'

'); + } elsif ($code eq 'not_available') { + $r->print('

'.&mt('No slots are available.').'

'); + } elsif ($code eq 'not_allowed') { + $r->print('

'.&mt('Not allowed to sign up or change reservations at this time.').'

'); + } else { + $r->print('

'.&mt('Failed.').'

'); } - $r->print('

'. - &mt('Return to last resource').'

'); + + &return_link($r); &end_page($r); } sub start_page { - my ($r)=@_; - my $html=&Apache::lonxml::xmlbegin(); - $r->print($html.''. - &mt('Request another Worktime').''); - $r->print(&Apache::loncommon::bodytag('Requesting another Worktime')); + my ($r,$title,$brcrum,$js)=@_; + my $args; + if (ref($brcrum) eq 'ARRAY') { + $args = {bread_crumbs => $brcrum}; + } + if (($env{'form.requestattempt'}) || ($env{'form.command'} eq 'manageresv')) { + my %loaditems = ( + onload => 'javascript:uncheckSlotRadio();', + ); + if (ref($args) eq 'HASH') { + $args->{'add_entries'} = \%loaditems; + } else { + $args = { 'add_entries' => \%loaditems }; + } + } + $r->print(&Apache::loncommon::start_page($title,$js,$args)); } sub end_page { my ($r)=@_; - $r->print(&Apache::loncommon::endbodytag().''); + $r->print(&Apache::loncommon::end_page()); +} + +sub reservation_js { + my ($slots,$consumed_uniqueperiods,$available,$got_slots,$symb) = @_; + return unless ((ref($slots) eq 'HASH') && (ref($available) eq 'ARRAY')); + my $toskip; + if ($symb eq '') { + $toskip = { symb => 1, }; + } + my ($i,$j) = (0,0); + my $js; + foreach my $slot (sort + { return $slots->{$a}->{'starttime'} <=> $slots->{$b}->{'starttime'} } + (keys(%{$slots}))) { + + next if (!&allowed_slot($slot,$slots->{$slot},$symb,$slots, + $consumed_uniqueperiods,$toskip)); + $js .= " slotstart[$i]='$slots->{$slot}->{'starttime'}';\n". + " slotend[$i]='$slots->{$slot}->{'endtime'}';\n". + " slotname[$i]='$slot';\n"; + if (($symb) && (ref($got_slots) eq 'ARRAY')) { + if (grep(/^\Q$slot\E$/,@{$got_slots})) { + $js .= " currslot[$j]='$slot';\n"; + $j++; + } + } + $i++; + push(@{$available},$slot); + } + if ($j) { + $js = " var currslot = new Array($j);\n\n$js"; + } + my %alerts = &Apache::lonlocal::texthash ( + none => 'No reservable time slots found', + invalid => 'Invalid date format', + ); + return <<"ENDSCRIPT"; + +ENDSCRIPT + +} + + =pod slot_reservations db @@ -71,7 +279,7 @@ sub end_page { =cut sub get_course { - (undef,my $courseid)=&Apache::lonxml::whichuser(); + (undef,my $courseid)=&Apache::lonnet::whichuser(); my $cdom=$env{'course.'.$courseid.'.domain'}; my $cnum=$env{'course.'.$courseid.'.num'}; return ($cnum,$cdom); @@ -84,7 +292,9 @@ sub get_reservation_ids { my %consumed=&Apache::lonnet::dump('slot_reservations',$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; @@ -105,23 +315,163 @@ sub space_available { return 0; } -# FIXME - depends on the parameter for the resource to be correct -# tho prevent multiple reservations +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(/:/, $course)); -sub make_reservation { - my ($slot_name,$slot,$symb)=@_; + &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; + my @sorted_slots = &Apache::loncommon::sorted_slots(\@slots,\%slots,'starttime'); + foreach my $slot_name (@sorted_slots) { + next if (!defined($slots{$slot_name}) || + !ref($slots{$slot_name})); + &Apache::lonxml::debug(time." $slot_name ". + $slots{$slot_name}->{'starttime'}." -- ". + $slots{$slot_name}->{'startreserve'}." -- ". + $slots{$slot_name}->{'endreserve'}); + if (($slots{$slot_name}->{'endtime'} > time) && + ($slots{$slot_name}->{'startreserve'} < time) && + ((!$slots{$slot_name}->{'endreserve'}) || + ($slots{$slot_name}->{'endreserve'} > time))) { + # between start of reservation time and end of reservation time + # and before 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 $navmap=Apache::lonnavmaps::navmap->new; + if (!defined($navmap)) { + return 'error: Unable to determine current status'; + } + 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($consumed_uniqueperiods)) { + if ($consumed_uniqueperiods =~ /^error: /) { + return $consumed_uniqueperiods; + } else { + $consumed_uniqueperiods = &get_consumed_uniqueperiods($slots); + if (ref($consumed_uniqueperiods) eq 'HASH') { + if (&Apache::lonnet::error(%$consumed_uniqueperiods)) { + return 'error: Unable to determine current status'; + } + } else { + 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,$cnum,$cdom)=@_; my $value=&Apache::lonnet::EXT("resource.0.availablestudent",$symb, $env{'user.domain'},$env{'user.name'}); &Apache::lonxml::debug("value is $value
"); + + my $use_slots = &Apache::lonnet::EXT("resource.0.useslots",$symb, + $env{'user.domain'},$env{'user.name'}); + &Apache::lonxml::debug("use_slots is $use_slots
"); + + if (&Apache::lonnet::error($value) + || &Apache::lonnet::error($use_slots)) { + return 'error: Unable to determine current status'; + } + + my $symb_for_db = $symb; + my $parm_level = 1; + if ($use_slots eq 'map' || $use_slots eq 'map_map') { + my ($map) = &Apache::lonnet::decode_symb($symb); + $symb_for_db = &Apache::lonnet::symbread($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"); - - my $me=$env{'user.name'}.'@'.$env{'user.domain'}; + if (&Apache::lonnet::error($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]; @@ -135,8 +485,9 @@ sub make_reservation { if (!defined($max)) { $max=99999; } my (@ids)=&get_reservation_ids($slot_name); - - # FIXME we could end up having holes... + 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]; @@ -145,14 +496,14 @@ sub make_reservation { my $wanted=$last+1; &Apache::lonxml::debug("wanted $wanted
"); - if ($wanted >= $max) { + if (scalar(@ids) >= $max) { # full up - return -1; + return undef; } - my %reservation=('name' => $env{'user.name'}.'@'.$env{'user.domain'}, + my %reservation=('name' => $env{'user.name'}.':'.$env{'user.domain'}, 'timestamp' => time, - 'symb' => $symb); + 'symb' => $symb_for_db); my $success=&Apache::lonnet::newput('slot_reservations', {"$slot_name\0$wanted" => @@ -160,17 +511,13 @@ sub make_reservation { $cdom, $cnum); if ($success eq 'ok') { - #FIXME need to set the parm my $new_value=$slot_name; if ($value) { $new_value=$value.':'.$new_value; } - my $result=&Apache::lonparmset::storeparm_by_symb($symb, - '0_availablestudent', - 1, $new_value, 'string', - $env{'user.name'}, - $env{'user.domain'}); - &Apache::lonxml::debug("hrrm $result"); + my $result = &store_slot_parm($symb,$symb_for_db,$slot_name,$parm_level, + $new_value,$cnum,$cdom,$env{'user.name'}, + $env{'user.domain'},'reserve',$env{'form.context'}); return $wanted; } @@ -178,78 +525,741 @@ sub make_reservation { return undef; } +sub store_slot_parm { + my ($symb_for_parm,$symb_for_db,$slot_name,$parm_level,$new_value, + $cnum,$cdom,$uname,$udom,$action,$context,$delflag) = @_; + + # store new parameter string + my $result=&Apache::lonparmset::storeparm_by_symb($symb_for_parm, + '0_availablestudent', + $parm_level,$new_value, + 'string',$uname,$udom); + &Apache::lonxml::debug("hrrm $result"); + my %storehash = ( + symb => $symb_for_db, + slot => $slot_name, + action => $action, + context => $context, + ); + + &Apache::lonnet::write_log('course','slotreservationslog',\%storehash, + $delflag,$uname,$udom,$cnum,$cdom); + &Apache::lonnet::write_log('course',$cdom.'_'.$cnum.'_slotlog',\%storehash, + $delflag,$uname,$udom,$uname,$udom); + return $result; +} + +sub remove_registration { + my ($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("

".&mt('A network error has occurred.').'

'); + return; + } + if (!%consumed) { + $r->print('

'.&mt('Slot [_1] has no reservations.', + ''.$slot_name.'').'

'); + 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,$msg,['entry','slotname','context']); +} + +sub remove_registration_user { + my ($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,$msg,['uname','udom','slotname', + 'entry','symb','context']); +} + +sub remove_registration_confirmation { + my ($r,$msg,$inputs) =@_; + + my $hidden_input; + foreach my $parm (@{$inputs}) { + $hidden_input .= + '&\'').'" />'."\n"; + } + my %lt = &Apache::lonlocal::texthash( + 'yes' => 'Yes', + 'no' => 'No', + ); + $r->print(<<"END_CONFIRM"); +

$msg

+
+ + + $hidden_input + +
+
+ + +
+END_CONFIRM + +} + +sub release_all_slot { + my ($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('

'.&mt('Releasing reservations').'

'); + + 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'},$mgr); + if (!$result) { + $r->print('

'.&mt($msg).'

'); + } else { + $r->print("

$msg

"); + } + $r->rflush(); + } + $r->print('

'. + &mt('Return to slot list').'

'); + &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,$mgr); + if (!$result) { + $r->print('

'.&mt($msg).'

'); + } else { + $r->print("

$msg

"); + } + + if ($mgr eq 'F') { + $r->print('

'. + &mt('Return to slot list').'

'); + } + + 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); + my $msg; + + if ($mgr ne 'F') { + if ($slot{'starttime'} < time) { + return (0,&mt('Not allowed to release Reservation: [_1], as it has already started.',$description)); + } + } + my $context = $env{'form.context'}; + + # get navmap object + my $navmap=Apache::lonnavmaps::navmap->new; + if (!defined($navmap)) { + return (0,'error: Unable to determine current status'); + } + + my ($cnum,$cdom)=&get_course(); + + # get slot reservations, check if user has reservation + my %consumed=&Apache::lonnet::dump('slot_reservations',$cdom,$cnum, + "^$slot_name\0"); + + # + # If release is because of a reservation *change*, symb(s) associated with reservation + # being dropped may differ from the current symb. + # + # We need to get symb(s) from slot_reservations.db, and for each symb, update + # the value of the availablestudent parameter, at the appropriate level + # (as dictated by the value of the useslots parameter for the symb and user). + # + # We also delete all entries for the slot being released, for the specific user. + # + + my $conflict; + + if (($env{'form.command'} eq 'change') && ($slot_name eq $env{'form.releaseslot'}) && + ($env{'form.slotname'} ne $slot_name)) { + my %changedto = &Apache::lonnet::get_slot($env{'form.slotname'}); + + # check for conflicts + my ($to_uniq_start,$to_uniq_end,$from_uniq_start,$from_uniq_end); + if (ref($changedto{'uniqueperiod'}) eq 'ARRAY') { + ($to_uniq_start,$to_uniq_end) = @{$changedto{'uniqueperiod'}}; + } + if (ref($slot{'uniqueperiod'}) eq 'ARRAY') { + ($from_uniq_start,$from_uniq_end) = @{$slot{'uniqueperiod'}}; + } + my $to_start = $changedto{'starttime'}; + my $to_end = $changedto{'endtime'}; + my $from_start = $slot{'starttime'}; + my $from_end = $slot{'endtime'}; + + if (! + ($from_start < $to_uniq_start && $from_end < $to_uniq_start) || + ($from_start > $to_uniq_end && $from_end > $to_uniq_end )) { + $conflict = 1; + } + if (! + ($to_start < $from_uniq_start && $to_end < $from_uniq_start) || + ($to_start > $from_uniq_end && $to_end > $from_uniq_end )) { + $conflict = 1; + } + + if ($conflict) { + my %symbs_for_slot; + my (%to_delete,%failed,%released); + foreach my $entry (keys(%consumed)) { + if ( $consumed{$entry}->{'name'} eq ($uname.':'.$udom) ) { + $symbs_for_slot{$consumed{$entry}->{'symb'}} = 1; + $to_delete{$entry} = 1; + } + } + if (keys(%to_delete)) { + my @removals = keys(%to_delete); + if (&Apache::lonnet::del('slot_reservations',\@removals, + $cdom,$cnum) eq 'ok') { + foreach my $item (keys(%symbs_for_slot)) { + my $result = &update_selectable($navmap,$slot_name,$item,$cdom, + $cnum,$udom,$uname,$context); + if ($result =~ /^error/) { + $failed{$item} = 1; + } else { + $released{$item} = 1; + } + } + } + } + if (keys(%released)) { + $msg = ''. + &mt('Released Reservation: [_1]',$description).'  '. + &mt('The following items had their reservation status change').':'; + my (%folders,%pages,%container,%titles); + foreach my $item (keys(%released)) { + my $res = $navmap->getBySymb($item); + if (ref($res)) { + $titles{$item} = $res->title(); + if ($res->is_map()) { + $folders{$item}{'title'} = $titles{$item}; + if ($res->is_page()) { + $pages{$item}{'title'} = $titles{$item}; + } else { + $folders{$item}{'title'} = $titles{$item}; + } + } else { + my $mapsrc = $res->enclosing_map_src(); + my $map = $navmap->getResourceByUrl($mapsrc); + if (ref($map)) { + if ($map->id() eq '0.0') { + $container{$mapsrc}{'title'} &mt('Top level of course'); + } else { + $container{$mapsrc}{'title'} = $map->title(); + if ($map->is_page()) { + $container{$mapsrc}{'page'} = 1; + } + } + } + $container{$mapsrc}{'resources'}{$item} = 1; + } + } + } + $msg .= ''; + my $person = &Apache::loncommon::plainname($env{'user.name'},$env{'user.domain'}); + my $subject = &mt('Reservation change: [_1]',$description); + my $msgbody = &mt('Reservation released by [_1] for [_2].',$person,$description); + $msg .= &slot_change_messaging($slot{'reservationmsg'},$subject,$msgbody,'release'); + return (1,$msg); + } else { + if (keys(%to_delete)) { + $msg = &mt('Reservation release partially complete for [_1]',$description); + } else { + $msg = &mt('No entries found for this user to release for [_1].',$description); + } + return (0,$msg); + } + } else { + $msg = &mt('No conflict found; not releasing: [_1].',$description); + return (0,$msg); + } + } + + my $map_symb; + my $parm_symb = $symb; + my $passed_resource = $navmap->getBySymb($symb); + + # if the reservation symb is for a map get a resource in that map + # to check slot parameters on + my $parm_level = 1; + if (ref($passed_resource)) { + if ($passed_resource->is_map()) { + my ($a_resource) = + $navmap->retrieveResources($passed_resource, + sub {$_[0]->is_problem()},0,1); + $parm_symb = $a_resource->symb(); + } + } else { + unless ($mgr eq 'F') { + return (0,'error: Unable to determine current status'); + } + } + + # Get value of useslots parameter in effect for this user. + # If value is map or map_map, then the parm level is 2 (i.e., + # non-recursive enclosing map/folder level for specific user) + # and the symb for this reservation in slot_reservations.db + # will be the symb of the map itself. + + my $use_slots = &Apache::lonnet::EXT('resource.0.useslots', + $parm_symb,$udom,$uname); + if (&Apache::lonnet::error($use_slots)) { + return (0,'error: Unable to determine current status'); + } + if ($use_slots eq 'map' || $use_slots eq 'map_map') { + $parm_level = 2; + if ($passed_resource->is_map()) { + $map_symb = $passed_resource->symb(); + } else { + my ($map) = &Apache::lonnet::decode_symb($symb); + $map_symb = &Apache::lonnet::symbread($map); + } + } + + # + # If release is *not* because of a reservation change, i.e., this is a "drop" + # by a student, or a removal for a single student by an instructor then + # only remove one entry from slot_reservations.db, where both the user + # and the symb match the current context. If useslots was set to map or + # map_map, then the symb to match in slot_reservations.db is the symb of + # the enclosing map/folder, not the symb of the resource. + # + + my ($match,$symb_to_check); + if ($parm_level == 2) { + $symb_to_check = $map_symb; + } else { + $symb_to_check = $parm_symb; + } + foreach my $entry (keys(%consumed)) { + if ( $consumed{$entry}->{'name'} eq ($uname.':'.$udom) ) { + if ($consumed{$entry}->{'symb'} eq $symb_to_check) { + if (&Apache::lonnet::del('slot_reservations',[$entry], + $cdom,$cnum) eq 'ok') { + $match = $symb_to_check; + } + last; + } + } + } + if ($match) { + if (&update_selectable($navmap,$slot_name,$symb,$cdom, + $cnum,$udom,$uname,$context) =~ /^error/) { + if ($mgr eq 'F') { + $msg = &mt('Reservation release partially complete for: [_1]',"$uname:$udom").'
'. + &mt('Update of availablestudent parameter for [_1] was not completed.',"$uname:$udom"); + } else { + $msg = &mt('Release partially complete for: [_1]',$description); + } + return (0,$msg); + } else { + if ($mgr eq 'F') { + $msg = &mt('Released Reservation for user: [_1]',"$uname:$udom"); + } else { + $msg = ''.&mt('Released reservation: [_1]',$description).'

'; + my $person = &Apache::loncommon::plainname($env{'user.name'},$env{'user.domain'}); + my $subject = &mt('Reservation change: [_1]',$description); + my $msgbody = &mt('Reservation released by [_1] for [_2].',$person,$description); + $msg .= &slot_change_messaging($slot{'reservationmsg'},$subject,$msgbody,'release'); + } + return (1,$msg); + } + } else { + $msg = &mt('Release failed for: [_1]',$description); + return (0,$msg); + } +} + +sub update_selectable { + my ($navmap,$slot_name,$symb,$cdom,$cnum,$udom,$uname,$context) = @_; + return 'error: ' unless (ref($navmap)); + my $symb_for_parm = $symb; + my $passed_resource = $navmap->getBySymb($symb); + return 'error: invalid symb' unless (ref($passed_resource)); + + # if the reservation symb is for a map get a resource in that map + # to check slot parameters on + if ($passed_resource->is_map()) { + my ($a_resource) = + $navmap->retrieveResources($passed_resource, + sub {$_[0]->is_problem()},0,1); + $symb_for_parm = $a_resource->symb(); + } + # get parameter string, check for existence, rebuild string with the slot + my $student = &Apache::lonnet::EXT('resource.0.availablestudent', + $symb_for_parm,$udom,$uname); + + # Get value of useslots parameter in effect for this user. + # If value is map or map_map, then the parm level is 2 (i.e., + # non-recursive enclosing map/folder level for specific user) + # and the symb for this reservation in slot_reservations.db + # will be the symb of the map itself. + + my $use_slots = &Apache::lonnet::EXT('resource.0.useslots', + $symb_for_parm,$udom,$uname); + &Apache::lonxml::debug("use_slots is $use_slots
"); + + if (&Apache::lonnet::error($use_slots)) { + return 'error: Unable to determine current status'; + } + + my $parm_level = 1; + if ($use_slots eq 'map' || $use_slots eq 'map_map') { + $parm_level = 2; + } + + my @slots = split(/:/,$student); + + my @new_slots; + foreach my $exist_slot (@slots) { + next if ($exist_slot eq $slot_name); + push(@new_slots,$exist_slot); + } + my $new_value = join(':',@new_slots); + + my $result = &store_slot_parm($symb_for_parm,$symb,$slot_name,$parm_level, + $new_value,$cnum,$cdom,$uname,$udom,'release', + $context,1); + return $result; +} + +sub delete_slot { + my ($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('

'.&mt('Slot [_1] marked as deleted.',''.$slot_name.'').'

'); + } else { + $r->print('

'.&mt('An error occurred when attempting to delete slot: [_1]',''.$slot_name.'')." ($ret)

"); + } + } else { + if (%consumed) { + $r->print('

'.&mt('Slot [_1] has active reservations.',''.$slot_name.'').'

'); + } else { + $r->print('

'.&mt('Slot [_1] does not exist.',''.$slot_name.'').'

'); + } + } + $r->print('

'. + &mt('Return to slot list').'

'); + &return_link($r); +} + +sub return_link { + my ($r) = @_; + if (($env{'form.command'} eq 'manageresv') || ($env{'form.context'} eq 'usermanage')) { + $r->print('

'. + &mt('Return to reservations')); + } else { + $r->print('

'. + &mt('Return to last resource').'

'); + } +} + sub get_slot { - my ($r,$symb)=@_; + 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('

' + .&mt('An error occurred while attempting to make a reservation. ([_1])',$1) + .'

'); + &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); + my $slottype1=$slot{'type'}; + %slot=&Apache::lonnet::get_slot($env{'form.slotname'}); + my $description2=&get_description($env{'form.slotname'},\%slot); + if ($slottype1 eq 'preassigned') { + $r->print('

'.&mt('You already have a reservation: "[_1]", assigned by your instructor.', + $description1).'

'. + '

'.&mt('Your instructor must unassign it before you can make a new reservation.'). + '

'); + } elsif ($slot_name ne $env{'form.slotname'}) { + $r->print(< + + + + +STUFF + $r->print('

'.&mt('Reservation currently unchanged').'

'); + if ($slot_name ne '') { + $r->print('

'.&mt('To complete the transaction you [_1]must confirm[_2] you want to [_3]process the change[_4] to [_5].' + ,'','','','',''.$description2.'') + .'
' + .&mt('Or you can choose to [_1]make no change[_2] and continue[_2] with the reservation you already had: [_3].' + ,'','',''.$description1.'') + .'

' + .'' + .(' 'x3) + .'' + .'

'); + } + $r->print(< +STUFF + } else { + $r->print('

'.&mt('Already have a reservation: [_1].',$description1).'

'); + &return_link($r); + } + return 0; + } + + my ($cnum,$cdom)=&get_course(); my $reserved=&make_reservation($env{'form.slotname'}, - \%slot,$symb); + \%slot,$symb,$cnum,$cdom); my $description=&get_description($env{'form.slotname'},\%slot); - if ($reserved > -1) { - $r->print("

Success: $description

"); - $r->print('

'. - &mt('Return to last resource').'

'); - return; - } elsif ($reserved < 0) { - $r->print("

Already reserved: $description

"); - $r->print('

'. - &mt('Return to last resource').'

'); - return; + if (defined($reserved)) { + my $retvalue = 0; + if ($slot_name =~ /^error: (.*)/) { + $r->print('

' + .&mt('An error occurred while attempting to make a reservation. ([_1])',$1) + .'

'); + } elsif ($reserved > -1) { + $r->print('

'.&mt('Successfully signed up: [_1]',$description).'

'); + $retvalue = 1; + my $person = &Apache::loncommon::plainname($env{'user.name'},$env{'user.domain'}); + my $subject = &mt('Reservation change: [_1]',$description); + my $msgbody = &mt('Successful reservation by [_1] for [_2].',$person,$description); + my $msg = &slot_change_messaging($slot{'reservationmsg'},$subject,$msgbody,'reserve'); + if ($msg) { + $r->print($msg); + } + } elsif ($reserved < 0) { + $r->print('

'.&mt('Already reserved: [_1]',$description).'

'); + } + if (!$inhibit_return_link) { &return_link($r); } + return 1; } - my %lt=('request'=>"Request another attempt", - 'try' =>'Try again'); - %lt=&Apache::lonlocal::texthash(%lt); + my %lt = &Apache::lonlocal::texthash( + 'request' => 'Availability list', + 'try' => 'Try again?', + 'or' => 'or', + ); + + my $extra_input; + if ($conflictable_slot) { + $extra_input=''; + } + $r->print('

'.&mt('[_1]Failed[_2] to reserve a slot for [_3].','','',$description).'

'); $r->print(< Failed to reserve a spot for $description.

-

+ - + + $extra_input
-?

-or -

+$lt{'or'} +
-

-or STUFF - $r->print('

'. - &mt('Return to last resource').'

'); - return; + + if (!$inhibit_return_link) { + $r->print(&mt('or').'

'); + &return_link($r); + } else { + $r->print('

'); + } + return 0; } sub allowed_slot { - my ($slot_name,$slot,$symb)=@_; + my ($slot_name,$slot,$symb,$slots,$consumed_uniqueperiods,$toskip)=@_; + #already started if ($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 ($slot->{'startreserve'} > time) { + return 0; + } + # reserve time ended + if (($slot->{'endreserve'}) && + ($slot->{'endreserve'} < time)) { + return 0; + } + &Apache::lonxml::debug("$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 $symb) { - return 0; + unless ((ref($toskip) eq 'HASH') && ($toskip->{'symb'})) { + return 0; + } } + my $conflict = &check_for_conflict($symb,$slot_name,$slot,$slots, + $consumed_uniqueperiods); + if ($conflict =~ /^error: /) { + return 0; + } elsif ($conflict ne '') { + if ($slots->{$conflict}{'starttime'} < time) { + return 0; + } + } + &Apache::lonxml::debug("$slot_name symb good"); return 1; } @@ -257,7 +1267,7 @@ sub get_description { my ($slot_name,$slot)=@_; my $description=$slot->{'description'}; if (!defined($description)) { - $description=&mt('[_1] From [_2] to [_3]',$slot, + $description=&mt('[_1] From [_2] to [_3]',$slot_name, &Apache::lonlocal::locallocaltime($slot->{'starttime'}), &Apache::lonlocal::locallocaltime($slot->{'endtime'})); } @@ -265,64 +1275,2043 @@ sub get_description { } sub show_choices { - my ($r,$symb)=@_; + my ($r,$symb,$formname,$num,$slots,$consumed_uniqueperiods,$available,$got_slots)=@_; + my $output; + &Apache::lonxml::debug("Checking Slots"); + if (!ref($available) eq 'ARRAY') { + return; + } + if (!@{$available}) { + $output = ''.&mt('No available times.').''; + if ($env{'form.command'} ne 'manageresv') { + $output .= ' '. + &mt('Return to last resource').''; + } + $r->print($output); + return; + } + if (@{$available} > 1) { + my $numavailable = scalar(@{$available}); + my $numreserved = 0; + my $js; + my $j = 0; + foreach my $got (@{$got_slots}) { + unless (($got eq '') || (!defined($got))) { + $numreserved ++; + if ($env{'form.command'} eq 'manageresv') { + $js .= " currslot[$j]='$got';\n"; + $j++; + } + } + } + my $showfilter = 'none'; + $output .= '
'.&mt('Actions').''."\n". + '
'; + my @options = ('all','filter'); + if ($numreserved) { + unshift(@options,'show'); + } + my %resmenu = &Apache::lonlocal::texthash ( + show => 'Show current reservation', + all => 'Show all', + filter => 'Search by date', + ); + foreach my $option (@options) { + my $onclick = "toggleSlotDisplay(this.form,'$num');"; + if (($option eq 'show') && ($env{'form.command'} eq 'manageresv')) { + $onclick .= "currSlotDisplay$num(this.form,'$num');"; + } + $output .= ''.(' ' x3)."\n"; + } + $output .= '
'; + my $chooserform = 'reservationchooser_'.$num; + my $starttime = $slots->{$available->[0]}->{'starttime'}; + my $endtime = $slots->{$available->[-1]}->{'starttime'}; + if ($env{'form.command'} eq 'manageresv') { + $output .= <<"ENDSCRIPT"; + + + +ENDSCRIPT + } + $output .= + '
'. + '
'. + '
'.&mt('Open after').''. + &Apache::lonhtmlcommon::date_setter($chooserform,'start',$starttime,'','','','','','','',1,1). + '
'.&mt('Closed before').''. + &Apache::lonhtmlcommon::date_setter($chooserform,'end',$endtime,'','','','','','','',1,1). + '

'. + ''. + '
'; + } + $r->print($output); + return; +} + +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"; + ($remove) +END_LINK + +} + +sub show_table { + my ($r,$mgr)=@_; my ($cnum,$cdom)=&get_course(); + my $crstype=&Apache::loncommon::course_type($cdom.'_'.$cnum); my %slots=&Apache::lonnet::dump('slots',$cdom,$cnum); + if ( (keys(%slots))[0] =~ /^error: 2 /) { + undef(%slots); + } my $available; - $r->print(''); - foreach my $slot (sort - { return $slots{$a}->{'starttime'} <=> $slots{$b}->{'starttime'} } - (keys(%slots))) { + if ($mgr eq 'F') { + # FIXME: This line should be deleted once Slots uses breadcrumbs + $r->print('
'.&Apache::loncommon::help_open_topic( + 'Slot About', &mt('Help on slots'))); + + $r->print('
'); + $r->print('
+ + +'); + $r->print(&Apache::loncommon::help_open_topic('Slot CommaDelimited')); + $r->print('
+ +'); + $r->print(&Apache::loncommon::help_open_topic('Slot AddInterface')); + $r->print('
'); + } + + if (!keys(%slots)) { + $r->print( + '

' + .&mt('No slots have been created in this '.lc($crstype).'.') + .'

' + ); + return; + } + + 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,$fullname)=&Apache::grades::getclasslist('all'); + &Apache::grades::reset_perm(); + + # what to display filtering + my %show_fields=&Apache::lonlocal::texthash( + 'name' => 'Slot Name', + 'description' => 'Description', + 'type' => 'Type', + 'starttime' => 'Start time', + 'endtime' => 'End Time', + 'startreserve' => 'Time students can start reserving', + 'endreserve' => 'Time students can no longer reserve', + 'reservationmsg' => 'Message triggered by reservation', + 'secret' => 'Secret Word', + 'space' => '# of students/max', + 'ip' => 'IP or DNS restrictions', + 'symb' => 'Resource slot is restricted to.', + 'allowedsections' => 'Sections slot is restricted to.', + 'allowedusers' => 'Users slot is restricted to.', + 'uniqueperiod' => 'Period of time slot is unique', + 'scheduled' => 'Scheduled Students', + 'proctor' => 'List of proctors'); + if ($crstype eq 'Community') { + $show_fields{'startreserve'} = &mt('Time members can start reserving'); + $show_fields{'endreserve'} = &mt('Time members can no longer reserve'); + $show_fields{'scheduled'} = &mt('Scheduled Members'); + } + my @show_order=('name','description','type','starttime','endtime', + 'startreserve','endreserve','reservationmsg','secret','space', + 'ip','symb','allowedsections','allowedusers','uniqueperiod', + 'scheduled','proctor'); + my @show = + (exists($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'); - next if (!&allowed_slot($slot,$slots{$slot})); + $r->print(' +'); + $r->print('
'); + $r->print('
+ + + + + + + + + + + + +
'.&mt('Show').''.&mt('Student Display').''.&mt('Open').''.&mt('Slot Name Filter').''.&mt('Options').'
'.&Apache::loncommon::multiple_select_form('show',\@show,6,\%show_fields,\@show_order). + ' + '.&Apache::loncommon::multiple_select_form('studisplay',\@stu_display, + 6,\%stu_display_fields, + \@stu_display_order).' + '.&Apache::loncommon::select_form($when,'when',\%when_fields). + ''.&Apache::loncommon::select_form($name_filter_type, + 'name_filter_type', + \%name_filter_type_fields). + '
'. + &Apache::lonhtmlcommon::textbox('name_filter_value', + $env{'form.name_filter_value'}, + 15). + '		 + + + + + + + + +
'.&mt('Deleted slots:').'
+
'); + $r->print(''); + $r->print('

'); + my $linkstart=''.$show_fields{$which}.''; + } + } + $tableheader .= &Apache::loncommon::end_data_table_header_row(); + my $shownheader = 0; + + my %name_cache; + my $slotsort = sub { + if ($env{'form.order'}=~/^(type|description|endtime|startreserve|endreserve|ip|symb|allowedsections|allowedusers|reservationmsg)$/) { + if (lc($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'}; + }; - $available++; + my %consumed; + if (exists($show{'scheduled'}) || exists($show{'space'}) ) { + %consumed=&Apache::lonnet::dump('slot_reservations',$cdom,$cnum); + my ($tmp)=%consumed; + if ($tmp =~ /^error: /) { undef(%consumed); } + } + my %msgops = &slot_reservationmsg_options(); + + foreach my $slot (sort $slotsort (keys(%slots))) { + if (!&to_show($slot,$slots{$slot},$when, + $env{'form.deleted'},$name_filter)) { next; } + my $reservemsg; + if (defined($slots{$slot}->{'type'}) + && $slots{$slot}->{'type'} eq 'schedulable_student') { + $reservemsg = $msgops{$slots{$slot}->{'reservationmsg'}}; + } 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.= ''; + foreach my $item (@stu_display_order) { + if ($stu_display{$item}) { + if ($item eq 'fullname') { + $ids.=$fullname->{"$uname:$udom"}.' '; + } elsif ($item eq 'username') { + $ids.="$uname:$udom "; + } + } + } + $ids.=&remove_link($slot,$entry,$uname,$udom, + $consumed{$entry}{'symb'}).'
'; + } + } + } - my $form=&mt('Unavailable'); - if (&space_available($slot,$slots{$slot},$symb)) { - my $escsymb=&Apache::lonnet::escape($symb); - $form=< - - - - - -STUFF + 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 $end_reserve=($slots{$slot}->{'endreserve'}? + &Apache::lonlocal::locallocaltime($slots{$slot}->{'endreserve'}):''); + + my $unique; + if (ref($slots{$slot}{'uniqueperiod'})) { + $unique=localtime($slots{$slot}{'uniqueperiod'}[0]).', '. + localtime($slots{$slot}{'uniqueperiod'}[1]); } - $r->print(< - $form - $description - + + 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'}); + $title=''.$title.''; + } + + 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 $proctors=join(', ',@proctors); + + my %lt = &Apache::lonlocal::texthash ( + edit => 'Edit', + delete => 'Delete', + slotlog => 'History', + ); + my ($edit,$delete,$showlog,$remove_all); + if ($mgr) { + $edit=(<<"EDITLINK"); +$lt{'edit'} +EDITLINK + + $delete=(<<"DELETELINK"); +$lt{'delete'} +DELETELINK + + $remove_all=&remove_link($slot,'remove all').'
'; + + if ($ids eq '') { + undef($remove_all); + } else { + undef($delete); + } + } + + $showlog=(<<"LOGLINK"); +$lt{'slotlog'} +LOGLINK + + if ($slots{$slot}{'type'} ne 'schedulable_student') { + undef($showlog); + undef($remove_all); + } + + unless ($shownheader) { + $r->print($tableheader); + $shownheader = 1; + } + + my $row_start=&Apache::loncommon::start_data_table_row(); + my $row_end=&Apache::loncommon::end_data_table_row(); + $r->print($row_start. + "\n$edit $delete $showlog\n"); + if (exists($show{'name'})) { + $colspan++;$r->print("$slot"); + } + if (exists($show{'description'})) { + $colspan++;$r->print("$description\n"); + } + if (exists($show{'type'})) { + $colspan++;$r->print("$slots{$slot}->{'type'}\n"); + } + if (exists($show{'starttime'})) { + $colspan++;$r->print("$start\n"); + } + if (exists($show{'endtime'})) { + $colspan++;$r->print("$end\n"); + } + if (exists($show{'startreserve'})) { + $colspan++;$r->print("$start_reserve\n"); + } + if (exists($show{'endreserve'})) { + $colspan++;$r->print("$end_reserve\n"); + } + if (exists($show{'reservationmsg'})) { + $colspan++;$r->print("$reservemsg\n"); + } + if (exists($show{'secret'})) { + $colspan++;$r->print("$slots{$slot}{'secret'}\n"); + } + if (exists($show{'space'})) { + my $display = $id_count; + if ($slots{$slot}{'maxspace'}>0) { + $display.='/'.$slots{$slot}{'maxspace'}; + if ($slots{$slot}{'maxspace'} <= $id_count) { + $display = ''.$display.' (full) '; + } + } + $colspan++;$r->print("$display\n"); + } + if (exists($show{'ip'})) { + $colspan++;$r->print("$slots{$slot}{'ip'}\n"); + } + if (exists($show{'symb'})) { + $colspan++;$r->print("$title\n"); + } + if (exists($show{'allowedsections'})) { + $colspan++;$r->print("$allowedsections\n"); + } + if (exists($show{'allowedusers'})) { + $colspan++;$r->print("$allowedusers\n"); + } + if (exists($show{'uniqueperiod'})) { + $colspan++;$r->print("$unique\n"); + } + if (exists($show{'scheduled'})) { + $colspan++;$r->print("$remove_all $ids\n"); + } + $r->print("$row_end\n"); + if (exists($show{'proctor'})) { + $r->print(<$proctors +$row_end STUFF + } + } + if ($shownheader) { + $r->print(&Apache::loncommon::end_data_table()); + } else { + $r->print('

'.&mt('No slots meet the criteria for display').'

'); + } + $r->print(''); + return; +} + +sub manage_reservations { + my ($r,$crstype,$slots,$consumed_uniqueperiods,$allavailable) = @_; + my $navmap = Apache::lonnavmaps::navmap->new(); + $r->print('

' + .&mt('Instructors may use a reservation system to place restrictions on when and where assignments can be worked on.') + .'
' + .&mt('One example is for management of laboratory space, which is only available at certain times, and has a limited number of seats.') + .'

' + ); + if (!defined($navmap)) { + $r->print('
'); + if ($crstype eq 'Community') { + $r->print(&mt('Unable to retrieve information about community contents')); + } else { + $r->print(&mt('Unable to retrieve information about course contents')); + } + $r->print('
'); + &Apache::lonnet::logthis('Manage Reservations - could not create navmap object in '.lc($crstype).':'.$env{'request.course.id'}); + return; + } + if (ref($consumed_uniqueperiods) eq 'HASH') { + if (&Apache::lonnet::error(%$consumed_uniqueperiods)) { + $r->print(''. + &mt('An error occurred determining slot availability.'). + ''); + return; + } + } elsif ($consumed_uniqueperiods =~ /^error: /) { + $r->print(''. + &mt('An error occurred determining slot availability.'). + ''); + return; + } + my (%parent,%shownparent,%container,%container_title,%contents); + my ($depth,$count,$reservable,$lastcontainer,$rownum) = (0,0,0,0,0); + my @backgrounds = ("LC_odd_row","LC_even_row"); + my $numcolors = scalar(@backgrounds); + my $location=&Apache::loncommon::lonhttpdurl("/adm/lonIcons/whitespace_21.gif"); + my $slotheader = '

'. + &mt('Your reservation status for any such assignments is listed below:'). + '

'. + ''."\n"; + my $shownheader = 0; + my $it=$navmap->getIterator(undef,undef,undef,1,undef,undef); + while (my $resource = $it->next()) { + if ($resource == $it->BEGIN_MAP()) { + $depth++; + $parent{$depth} = $lastcontainer; + } + if ($resource == $it->END_MAP()) { + $depth--; + $lastcontainer = $parent{$depth}; + } + if (ref($resource)) { + my $symb = $resource->symb(); + my $ressymb = $symb; + $contents{$lastcontainer} ++; + next if (!$resource->is_problem() && !$resource->is_sequence() && + !$resource->is_page()); + $count ++; + if (($resource->is_sequence()) || ($resource->is_page())) { + $lastcontainer = $count; + $container{$lastcontainer} = $resource; + $container_title{$lastcontainer} = $resource->compTitle(); + } + if ($resource->is_problem()) { + my ($useslots) = $resource->slot_control(); + next if (($useslots eq '') || ($useslots =~ /^\s*no\s*$/i)); + my ($msg,$get_choices,$slotdescription); + my $title = $resource->compTitle(); + my $status = $resource->simpleStatus('0'); + my ($slot_status,$date,$slot_name) = $resource->check_for_slot('0'); + if ($slot_name ne '') { + my %slot=&Apache::lonnet::get_slot($slot_name); + $slotdescription=&get_description($slot_name,\%slot); + } + if ($slot_status == $resource->NOT_IN_A_SLOT) { + $msg=&mt('No current reservation.'); + $get_choices = 1; + } elsif ($slot_status == $resource->NEEDS_CHECKIN) { + $msg=''.&mt('Reserved:'). + ' '.$slotdescription.'
'. + &mt('Access requires proctor validation.'); + } elsif ($slot_status == $resource->WAITING_FOR_GRADE) { + $msg=&mt('Submitted and currently in grading queue.'); + } elsif ($slot_status == $resource->CORRECT) { + $msg=&mt('Problem is unavailable.'); + } elsif ($slot_status == $resource->RESERVED) { + $msg=''.&mt('Reserved:'). + ' '.$slotdescription.'
'. + &mt('Problem is currently available.'); + } elsif ($slot_status == $resource->RESERVED_LOCATION) { + $msg=''.&mt('Reserved:'). + ' '.$slotdescription.'
'. + &mt('Problem is available at a different location.'); + $get_choices = 1; + } elsif ($slot_status == $resource->RESERVED_LATER) { + $msg=''.&mt('Reserved:'). + ' '.$slotdescription.'
'. + &mt('Problem will be available later.'); + $get_choices = 1; + } elsif ($slot_status == $resource->RESERVABLE) { + $msg=&mt('Reservation needed'); + $get_choices = 1; + } elsif ($slot_status == $resource->RESERVABLE_LATER) { + $msg=&mt('Reservation needed: will be reservable later.'); + } elsif ($slot_status == $resource->NOTRESERVABLE) { + $msg=&mt('Reservation needed: none available.'); + } elsif ($slot_status == $resource->UNKNOWN) { + $msg=&mt('Unable to determine status due to network problems.'); + } else { + if ($status != $resource->OPEN) { + $msg = &Apache::lonnavmaps::getDescription($resource,'0'); + } + } + $reservable ++; + my $treelevel = $depth; + my $higherup = $lastcontainer; + if ($depth > 1) { + my @maprows; + while ($treelevel > 1) { + if (ref($container{$higherup})) { + my $res = $container{$higherup}; + last if (defined($shownparent{$higherup})); + my $maptitle = $res->compTitle(); + my $type = 'sequence'; + if ($res->is_page()) { + $type = 'page'; + } + &show_map_row($treelevel,$location,$type,$maptitle, + \@maprows); + $shownparent{$higherup} = 1; + } + $treelevel --; + $higherup = $parent{$treelevel}; + } + foreach my $item (@maprows) { + $rownum ++; + my $bgcolor = $backgrounds[$rownum % $numcolors]; + if (!$shownheader) { + $r->print($slotheader); + $shownheader = 1; + } + $r->print(''.$item.''."\n"); + } + } + $rownum ++; + my $bgcolor = $backgrounds[$rownum % $numcolors]; + if (!$shownheader) { + $r->print($slotheader); + $shownheader = 1; + } + $r->print(''; + my $hasaction; + if ($status == $resource->OPEN) { + if ($get_choices) { + $hasaction = 1; + } + } + if ($hasaction) { + $result .= ''. + ''; + } + $r->print($result); + if ($hasaction) { + my @got_slots=&check_for_reservation($symb,'allslots'); + if ($got_slots[0] =~ /^error: /) { + $r->print(''. + &mt('An error occurred determining slot availability.'). + ''); + } else { + my $formname = 'manageres_'.$reservable; + if (ref($allavailable) eq 'ARRAY') { + my @available; + if (ref($slots) eq 'HASH') { + foreach my $slot (@{$allavailable}) { + # not allowed for this resource + if (ref($slots->{$slot}) eq 'HASH') { + if ((defined($slots->{$slot}->{'symb'})) && + ($slots->{$slot}->{'symb'} ne $symb)) { + next; + } + } + push(@available,$slot); + } + } + &show_choices($r,$symb,$formname,$reservable,$slots,$consumed_uniqueperiods, + \@available,\@got_slots); + } + } + $r->print(''); + } + $r->print(''); + } + } + } + if ($shownheader) { + $r->print('
'."\n"); + for (my $i=0; $i<$depth; $i++) { + $r->print(''); + } + my $result = ''. + ''.&mt('Task'); + } else { + $result .= 'problem.gif'.$title.''.(' ' x6).''.$msg.''; + } else { + $result .= ''.$msg.'
'); + } + if (!$reservable) { + $r->print(''); + if ($crstype eq 'Community') { + $r->print(&mt('No community items currently require a reservation to gain access.')); + } else { + $r->print(&mt('No course items currently require a reservation to gain access.')); + } + $r->print(''); + } + $r->print('

'. + &mt('Reservation History').'

'); +} + +sub show_map_row { + my ($depth,$location,$type,$title,$maprows) = @_; + my $output = ''; + for (my $i=0; $i<$depth-1; $i++) { + $output .= ''; + } + if ($type eq 'page') { + $output .= ' '."\n"; + } else { + $output .= ' '."\n"; + } + $output .= $title.' '."\n"; + unshift (@{$maprows},$output); + return; +} + +sub show_reservations { + my ($r,$uname,$udom) = @_; + if (!defined($uname)) { + $uname = $env{'user.name'}; + } + if (!defined($udom)) { + $udom = $env{'user.domain'}; + } + my $formname = 'slotlog'; + my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'}; + my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'}; + my $crstype = &Apache::loncommon::course_type(); + my %log=&Apache::lonnet::dump('nohist_'.$cdom.'_'.$cnum.'_slotlog',$udom,$uname); + if ($env{'form.origin'} eq 'aboutme') { + $r->print('
'); + my $name = &Apache::loncommon::plainname($env{'form.uname'},$env{'form.udom'}, + 'firstname'); + if ($crstype eq 'Community') { + $r->print(&mt('History of member-reservable slots for: [_1]', + $name)); + } else { + $r->print(&mt('History of student-reservable slots for: [_1]', + $name)); + + } + $r->print('
'); + } + $r->print('
'); + # set defaults + my $now = time(); + my $defstart = $now - (7*24*3600); #7 days ago + my %defaults = ( + page => '1', + show => '10', + action => 'any', + log_start_date => $defstart, + log_end_date => $now, + ); + my $more_records = 0; + + # set current + my %curr; + foreach my $item ('show','page','action') { + $curr{$item} = $env{'form.'.$item}; + } + my ($startdate,$enddate) = + &Apache::lonuserutils::get_dates_from_form('log_start_date', + 'log_end_date'); + $curr{'log_start_date'} = $startdate; + $curr{'log_end_date'} = $enddate; + foreach my $key (keys(%defaults)) { + if ($curr{$key} eq '') { + $curr{$key} = $defaults{$key}; + } + } + my ($version) = ($r->dir_config('lonVersion') =~ /^([\d\.]+)\-/); + $r->print(&display_filter($formname,$cdom,$cnum,\%curr,$version)); + my $showntablehdr = 0; + my $tablehdr = &Apache::loncommon::start_data_table(). + &Apache::loncommon::start_data_table_header_row(). + ' '.&mt('When').''.&mt('Action').''. + ''.&mt('Description').''.&mt('Start time').''. + ''.&mt('End time').''.&mt('Resource').''. + &Apache::loncommon::end_data_table_header_row(); + my ($minshown,$maxshown); + $minshown = 1; + my $count = 0; + if ($curr{'show'} ne &mt('all')) { + $maxshown = $curr{'page'} * $curr{'show'}; + if ($curr{'page'} > 1) { + $minshown = 1 + ($curr{'page'} - 1) * $curr{'show'}; + } + } + my (%titles,%maptitles); + my %lt = &reservationlog_contexts($crstype); + foreach my $id (sort { $log{$b}{'exe_time'}<=>$log{$a}{'exe_time'} } (keys(%log))) { + next if (($log{$id}{'exe_time'} < $curr{'log_start_date'}) || + ($log{$id}{'exe_time'} > $curr{'log_end_date'})); + if ($curr{'show'} ne &mt('all')) { + if ($count >= $curr{'page'} * $curr{'show'}) { + $more_records = 1; + last; + } + } + if ($curr{'action'} ne 'any') { + next if ($log{$id}{'logentry'}{'action'} ne $curr{'action'}); + } + $count ++; + next if ($count < $minshown); + if (!$showntablehdr) { + $r->print($tablehdr); + $showntablehdr = 1; + } + my $symb = $log{$id}{'logentry'}{'symb'}; + my $slot_name = $log{$id}{'logentry'}{'slot'}; + my %slot=&Apache::lonnet::get_slot($slot_name); + my $description = $slot{'description'}; + my $start = ($slot{'starttime'}? + &Apache::lonlocal::locallocaltime($slot{'starttime'}):''); + my $end = ($slot{'endtime'}? + &Apache::lonlocal::locallocaltime($slot{'endtime'}):''); + my $title = &get_resource_title($symb,\%titles,\%maptitles); + my $chgaction = $log{$id}{'logentry'}{'action'}; + if ($chgaction ne '' && $lt{$chgaction} ne '') { + $chgaction = $lt{$chgaction}; + } + $r->print(&Apache::loncommon::start_data_table_row().''.$count.''.&Apache::lonlocal::locallocaltime($log{$id}{'exe_time'}).''.$chgaction.''.$description.''.$start.''.$end.''.$title.''.&Apache::loncommon::end_data_table_row()."\n"); + } + if ($showntablehdr) { + $r->print(&Apache::loncommon::end_data_table().'
'); + if (($curr{'page'} > 1) || ($more_records)) { + $r->print('

'); + if ($curr{'page'} > 1) { + $r->print(''); + } + if ($more_records) { + $r->print(''); + } + $r->print('

'); + $r->print(<<"ENDSCRIPT"); + +ENDSCRIPT + } + } else { + $r->print('' + .&mt('There are no transactions to display.') + .'' + ); + } + $r->print(''."\n". + ''."\n"); + if ($env{'form.origin'} eq 'aboutme') { + $r->print(''."\n". + ''."\n". + ''."\n"); + } + $r->print('
'); + return; +} - if (!$available) { - $r->print('No avaliable times. '. - &mt('Return to last resource').''); +sub show_reservations_log { + my ($r) = @_; + my $badslot; + my $crstype = &Apache::loncommon::course_type(); + if ($env{'form.slotname'} eq '') { + $r->print('
'.&mt('No slot name provided').'
'); + $badslot = 1; + } else { + my %slot=&Apache::lonnet::get_slot($env{'form.slotname'}); + if (keys(%slot) == 0) { + $r->print('
'.&mt('Invalid slot name: [_1]',$env{'form.slotname'}).'
'); + $badslot = 1; + } elsif ($slot{type} ne 'schedulable_student') { + my $description = &get_description($env{'form.slotname'},\%slot); + $r->print('
'); + if ($crstype eq 'Community') { + $r->print(&mt('Reservation history unavailable for non-member-reservable slot: [_1].',$description)); + } else { + $r->print(&mt('Reservation history unavailable for non-student-reservable slot: [_1].',$description)); + } + $r->print('
'); + $badslot = 1; + } + } + if ($badslot) { + $r->print('

'. + &mt('Return to slot list').'

'); + return; + } + my $formname = 'reservationslog'; + my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'}; + my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'}; + my %slotlog=&Apache::lonnet::dump('nohist_slotreservationslog',$cdom,$cnum); + if ((keys(%slotlog))[0]=~/^error\:/) { undef(%slotlog); } + + my (%log,@allsymbs); + if (keys(%slotlog)) { + foreach my $key (keys(%slotlog)) { + if (ref($slotlog{$key}) eq 'HASH') { + if (ref($slotlog{$key}{'logentry'}) eq 'HASH') { + if ($slotlog{$key}{'logentry'}{'slot'} eq $env{'form.slotname'}) { + $log{$key} = $slotlog{$key}; + if ($slotlog{$key}{'logentry'}{'symb'} ne '') { + push(@allsymbs,$slotlog{$key}{'logentry'}{'symb'}); + } + } + } + } + } + } + + $r->print('
'); + my %saveable_parameters = ('show' => 'scalar',); + &Apache::loncommon::store_course_settings('reservationslog', + \%saveable_parameters); + &Apache::loncommon::restore_course_settings('reservationslog', + \%saveable_parameters); + # set defaults + my $now = time(); + my $defstart = $now - (7*24*3600); #7 days ago + my %defaults = ( + page => '1', + show => '10', + chgcontext => 'any', + action => 'any', + symb => 'any', + log_start_date => $defstart, + log_end_date => $now, + ); + my $more_records = 0; + + # set current + my %curr; + foreach my $item ('show','page','chgcontext','action','symb') { + $curr{$item} = $env{'form.'.$item}; + } + my ($startdate,$enddate) = + &Apache::lonuserutils::get_dates_from_form('log_start_date', + 'log_end_date'); + $curr{'log_start_date'} = $startdate; + $curr{'log_end_date'} = $enddate; + foreach my $key (keys(%defaults)) { + if ($curr{$key} eq '') { + $curr{$key} = $defaults{$key}; + } + } + my (%whodunit,%changed,$version); + ($version) = ($r->dir_config('lonVersion') =~ /^([\d\.]+)\-/); + + my %slot=&Apache::lonnet::get_slot($env{'form.slotname'}); + my $description = $slot{'description'}; + $r->print(''); + if ($crstype eq 'Community') { + $r->print(&mt('Reservation changes for member-reservable slot: [_1]',$description)); + } else { + $r->print(&mt('Reservation changes for student-reservable slot: [_1]',$description)); + } + $r->print('
'); + $r->print(&display_filter($formname,$cdom,$cnum,\%curr,$version,\@allsymbs)); + my $showntablehdr = 0; + my $tablehdr = &Apache::loncommon::start_data_table(). + &Apache::loncommon::start_data_table_header_row(). + ' '.&mt('When').''.&mt('Who made the change'). + ''.&mt('Affected User').''.&mt('Action').''. + ''.&mt('Resource').''.&mt('Context').''. + &Apache::loncommon::end_data_table_header_row(); + my ($minshown,$maxshown); + $minshown = 1; + my $count = 0; + if ($curr{'show'} ne &mt('all')) { + $maxshown = $curr{'page'} * $curr{'show'}; + if ($curr{'page'} > 1) { + $minshown = 1 + ($curr{'page'} - 1) * $curr{'show'}; + } } - $r->print(''); + my %lt = &reservationlog_contexts($crstype); + my (%titles,%maptitles); + foreach my $id (sort { $log{$b}{'exe_time'}<=>$log{$a}{'exe_time'} } (keys(%log))) { + next if (($log{$id}{'exe_time'} < $curr{'log_start_date'}) || + ($log{$id}{'exe_time'} > $curr{'log_end_date'})); + if ($curr{'show'} ne &mt('all')) { + if ($count >= $curr{'page'} * $curr{'show'}) { + $more_records = 1; + last; + } + } + if ($curr{'chgcontext'} ne 'any') { + if ($curr{'chgcontext'} eq 'user') { + next if (($log{$id}{'logentry'}{'context'} ne 'user') && + ($log{$id}{'logentry'}{'context'} ne 'usermanage')); + } else { + next if ($log{$id}{'logentry'}{'context'} ne $curr{'chgcontext'}); + } + } + if ($curr{'action'} ne 'any') { + next if ($log{$id}{'logentry'}{'action'} ne $curr{'action'}); + } + if ($curr{'symb'} ne 'any') { + next if ($log{$id}{'logentry'}{'symb'} ne $curr{'symb'}); + } + $count ++; + next if ($count < $minshown); + if (!$showntablehdr) { + $r->print($tablehdr); + $showntablehdr = 1; + } + if ($whodunit{$log{$id}{'exe_uname'}.':'.$log{$id}{'exe_udom'}} eq '') { + $whodunit{$log{$id}{'exe_uname'}.':'.$log{$id}{'exe_udom'}} = + &Apache::loncommon::plainname($log{$id}{'exe_uname'},$log{$id}{'exe_udom'}); + } + if ($changed{$log{$id}{'uname'}.':'.$log{$id}{'udom'}} eq '') { + $changed{$log{$id}{'uname'}.':'.$log{$id}{'udom'}} = + &Apache::loncommon::plainname($log{$id}{'uname'},$log{$id}{'udom'}); + } + my $symb = $log{$id}{'logentry'}{'symb'}; + my $title = &get_resource_title($symb,\%titles,\%maptitles); + my $chgcontext = $log{$id}{'logentry'}{'context'}; + if ($chgcontext ne '' && $lt{$chgcontext} ne '') { + $chgcontext = $lt{$chgcontext}; + } + my $chgaction = $log{$id}{'logentry'}{'action'}; + if ($chgaction ne '' && $lt{$chgaction} ne '') { + $chgaction = $lt{$chgaction}; + } + $r->print(&Apache::loncommon::start_data_table_row().''.$count.''.&Apache::lonlocal::locallocaltime($log{$id}{'exe_time'}).''.$whodunit{$log{$id}{'exe_uname'}.':'.$log{$id}{'exe_udom'}}.''.$changed{$log{$id}{'uname'}.':'.$log{$id}{'udom'}}.''.$chgaction.''.$title.''.$chgcontext.''.&Apache::loncommon::end_data_table_row()."\n"); + } + if ($showntablehdr) { + $r->print(&Apache::loncommon::end_data_table().'
'); + if (($curr{'page'} > 1) || ($more_records)) { + $r->print('

'); + if ($curr{'page'} > 1) { + $r->print(''); + } + if ($more_records) { + $r->print(''); + } + $r->print('

'); + $r->print(<<"ENDSCRIPT"); + +ENDSCRIPT + } + } else { + $r->print(&mt('There are no records to display.')); + } + $r->print(''. + ''. + '
'. + '

'. + &mt('Return to slot list').'

'); + return; +} + +sub get_resource_title { + my ($symb,$titles,$maptitles) = @_; + my $title; + if ((ref($titles) eq 'HASH') && (ref($maptitles) eq 'HASH')) { + if (defined($titles->{$symb})) { + $title = $titles->{$symb}; + } else { + $title = &Apache::lonnet::gettitle($symb); + my $maptitle; + my ($mapurl) = &Apache::lonnet::decode_symb($symb); + if (defined($maptitles->{$mapurl})) { + $maptitle = $maptitles->{$mapurl}; + } else { + if ($mapurl eq $env{'course.'.$env{'request.course.id'}.'.url'}) { + $maptitle=&mt('Main Content'); + } else { + $maptitle=&Apache::lonnet::gettitle($mapurl); + } + $maptitles->{$mapurl} = $maptitle; + } + if ($maptitle ne '') { + $title .= ' '.&mt('(in [_1])',$maptitle); + } + $titles->{$symb} = $title; + } + } else { + $title = $symb; + } + return $title; +} + +sub reservationlog_contexts { + my ($crstype) = @_; + my %lt = &Apache::lonlocal::texthash ( + any => 'Any', + user => 'By student', + manage => 'Via Slot Manager', + parameter => 'Via Parameter Manager', + reserve => 'Made reservation', + release => 'Dropped reservation', + usermanage => 'By student', + ); + if ($crstype eq 'Community') { + $lt{'user'} = &mt('By member'); + $lt{'usermanage'} = $lt{'user'}; + } + return %lt; +} + +sub display_filter { + my ($formname,$cdom,$cnum,$curr,$version,$allsymbs) = @_; + my $nolink = 1; + my (%titles,%maptitles); + my $output = '
'; + my $startform = + &Apache::lonhtmlcommon::date_setter($formname,'log_start_date', + $curr->{'log_start_date'},undef, + undef,undef,undef,undef,undef,undef,$nolink); + my $endform = + &Apache::lonhtmlcommon::date_setter($formname,'log_end_date', + $curr->{'log_end_date'},undef, + undef,undef,undef,undef,undef,undef,$nolink); + my $crstype = &Apache::loncommon::course_type(); + my %lt = &reservationlog_contexts($crstype); + $output .= ''; + if (ref($allsymbs) eq 'ARRAY') { + $output .= ''; + } else { + $output .= ''; + } + $output .= '
'. + ''.&mt('Changes/page:').'
'. + &Apache::lonmeta::selectbox('show',$curr->{'show'},undef, + (&mt('all'),5,10,20,50,100,1000,10000)). + '		  '.&mt('Window during which changes occurred:'). + '
'.&mt('After:'). + ''.$startform.'
'.&mt('Before:').''. + $endform.'
  '.&mt('Resource').'
'. + '		  '. + &mt('Context:').'
'.&mt('Action').'
'. + '		  
'. + '

'. + '

'. + &mt('Only changes made from servers running LON-CAPA [_1] or later are displayed.' + ,'2.9.0'); + if ($version) { + $output .= ' '.&mt('This LON-CAPA server is version [_1]',$version); + } + $output .= '


'; + return $output; +} + +sub slot_change_messaging { + my ($setting,$subject,$msg,$action) = @_; + my $user = $env{'user.name'}; + my $domain = $env{'user.domain'}; + my ($message_status,$comment_status); + if ($setting eq 'only_student' + || $setting eq 'student_and_user_notes_screen') { + $message_status = + &Apache::lonmsg::user_normal_msg($user,$domain,$subject,$msg); + $message_status = '
  • '.&mt('Sent to you: [_1]', + $message_status).'
    • '; + } + if ($setting eq 'student_and_user_notes_screen') { + $comment_status = + &Apache::lonmsg::store_instructor_comment($subject.'
    '. + $msg,$user,$domain); + $comment_status = '
  • '.&mt('Entry added to course record (viewable by instructor): [_1]', + $comment_status).'
    • '; + } + if ($message_status || $comment_status) { + my $msgtitle; + if ($action eq 'reserve') { + $msgtitle = &mt('Status of messages about saved reservation'); + } elsif ($action eq 'release') { + $msgtitle = &mt('Status of messages about dropped reservation'); + } elsif ($action eq 'nochange') { + $msgtitle = &mt('Status of messages about unchanged existing reservation'); + } + return ''.$msgtitle.'' + .'
      ' + .$message_status + .$comment_status + .'
    '; + } +} + +sub upload_start { + my ($r)=@_; + $r->print( + &Apache::grades::checkforfile_js() + .'

    '.&mt('Upload a file containing the slot definitions').'

    ' + .'
    ' + .'' + .&Apache::lonhtmlcommon::start_pick_box() + .&Apache::lonhtmlcommon::row_title(&mt('File')) + .&Apache::loncommon::upfile_select_html() + .&Apache::lonhtmlcommon::row_closure() + .&Apache::lonhtmlcommon::row_title( + '') + .'' + .&Apache::lonhtmlcommon::row_closure(1) + .&Apache::lonhtmlcommon::end_pick_box() + .'

    ' + .'' + .'

    ' + .'
    ' + ); +} + +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 $buttontext = &mt('Reverse Association'); + + $r->print( + '
    ' + .'

    '.&mt('Identify fields in uploaded list').'

    ' + .'
    ' + .&Apache::loncommon::help_open_topic( + 'Slot About',&mt('Help on slots')) + .' '.&Apache::loncommon::help_open_topic( + 'Slot SelectingField',&mt('Help on selecting Fields')) + ."
    \n" + .'

    ' + .&mt('Total number of records found in file: [_1]',''.$distotal.'') + ."

    \n" + ); + if ($distotal == 0) { + $r->print('

    '.&mt('None found').'

    '); + } + $r->print( + '

    ' + .&mt('Enter as many fields as you can.').'
    ' + .&mt('The system will inform you and bring you back to this page,[_1]if the data selected is insufficient to create the slots.','
    ') + .'

    ' + ); + $r->print( + '
    ' + .'
    '.&mt('Functions').'' + .'' + .' ' + .'

    ' + ); + + $r->print(< + + + + + + +ENDPICK + return ''; + +} + +sub csvuploadmap_footer { + my ($request,$i,$keyfields) =@_; + my $buttontext = &mt('Create Slots'); + $request->print(< + +
    + +ENDPICK +} + +sub csvupload_javascript_reverse_associate { + my $error1=&mt('You need to specify the name, start time, end time and a type.'); + return(<[0].','; } + chop($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'], + ['endreserve','Reservation End Time'], + ['reservationmsg','Message when reservation changed'], + ['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('

    '.&mt('Creating Slots').'

    '); + 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'}}) { + my $date = &UnixDate($entries{$fields{'startreserve'}},"%s"); + if ($date eq '') { + push(@errors,"$name -- No reservation start time set for slot -- value provided had invalid format"); + } else { + $slot{'startreserve'} = $date; + } + } + if (defined($slot{'startreserve'}) + && $slot{'startreserve'} > $slot{'starttime'}) { + push(@errors,"$name not created -- Slot's reservation start time is after the slot's start time."); + next; + } + + if ($entries{$fields{'endreserve'}}) { + my $date = &UnixDate($entries{$fields{'endreserve'}},"%s"); + if ($date eq '') { + push(@errors,"$name -- No reservation end time set for slot -- value provided had invalid format"); + } else { + $slot{'endreserve'} = $date; + } + } + if (defined($slot{'endreserve'}) + && $slot{'endreserve'} > $slot{'starttime'}) { + push(@errors,"$name not created -- Slot's reservation end time is after the slot's start time."); + next; + } + + if ($slot{'type'} eq 'schedulable_student') { + if ($entries{$fields{'reservationmsg'}}) { + if (($entries{$fields{'reservationmsg'}} eq 'only_student') || + ($entries{$fields{'reservationmsg'}} eq 'student_and_user_notes_screen')) { + $slot{'reservationmsg'}=$entries{$fields{'reservationmsg'}}; + } else { + unless (($entries{$fields{'reservationmsg'}} eq 'none') || + ($entries{$fields{'reservationmsg'}} eq '')) { + push(@errors,"$name -- Slot's reservationmsg setting ignored - not one of: 'only_student', 'student_and_user_notes_screen', 'none' or ''"); + } + } + } + } + + foreach my $key ('ip','proctor','description','maxspace', + 'secret','symb') { + if ($entries{$fields{$key}}) { + $slot{$key}=$entries{$fields{$key}}; + } + } + if ($entries{$fields{'allowedusers'}}) { + $entries{$fields{'allowedusers'}} =~ s/^\s+//; + $entries{$fields{'allowedusers'}} =~ s/\s+$//; + my @allowedusers; + foreach my $poss (split(/\s*,\s*/,$entries{$fields{'allowedusers'}})) { + my ($possuname,$possudom) = split(/:/,$poss); + if (($possuname =~ /^$match_username$/) && ($possudom =~ /^$match_domain$/)) { + unless (grep(/^\Q$poss\E$/,@allowedusers)) { + push(@allowedusers,$poss); + } + } + } + if (@allowedusers > 0) { + $slot{'allowedusers'} = join(',',@allowedusers); + } + } + if ($entries{$fields{'allowedsections'}}) { + $entries{$fields{'allowedsections'}} =~ s/^\s+//; + $entries{$fields{'allowedsections'}} =~ s/\s+$//; + my @allowedsections; + foreach my $poss (split(/\s*,\s*/,$entries{$fields{'allowedsections'}})) { + if (($poss !~ /\W/) && ($poss ne 'none')) { + unless (grep(/^\Q$poss\E$/,@allowedsections)) { + push(@allowedsections,$poss); + } + } + } + if (@allowedsections > 0) { + $slot{'allowedsections'} = join(',',@allowedsections); + } + } + if ($entries{$fields{'uniqueperiod'}}) { + my ($start,$end)= map { &UnixDate($_,"%s"); } split(',',$entries{$fields{'uniqueperiod'}}); + if (($start ne '') && ($end ne '')) { + $slot{'uniqueperiod'}=[$start,$end]; + } else { + push(@errors,"$name -- Slot's unique period ignored -- one or both of the comma separated values for start and end had an invalid format"); + } + } + if (ref($slot{'uniqueperiod'}) eq 'ARRAY' + && $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(); + $countdone++; + } + if ($countdone) { + &Apache::lonnet::devalidate_slots_cache($cname,$cdom); + } + $r->print('

    '.&mt('Created [quant,_1,slot]',$countdone)."\n".'

    '); + foreach my $error (@errors) { + $r->print('

    '.$error.'

    '."\n"); + } + &show_table($r,$mgr); + return ''; +} + +sub slot_command_titles { + my %titles = ( + slotlog => 'Reservation Logs', + showslots => 'Manage Slots', + showresv => 'Reservation History', + manageresv => 'Manage Reservations', + uploadstart => 'Upload Slots File', + csvuploadmap => 'Upload Slots File', + csvuploadassign => 'Upload Slots File', + delete => 'Slot Deletion', + release => 'Reservation Result', + remove_reservation => 'Remove Registration', + get_reservation => 'Request Reservation', + ); + return %titles; +} + +sub slot_reservationmsg_options { + my %options = &Apache::lonlocal::texthash ( + only_student => 'Sent to student', + student_and_user_notes_screen => 'Sent to student and added to user notes', + none => 'None sent and no record in user notes', + ); + return %options; } sub handler { my $r=shift; - &start_page($r); - my $symb=&Apache::lonnet::unescape($env{'form.symb'}); - my (undef,undef,$res)=&Apache::lonnet::decode_symb($symb); - if ($res !~ /\.task$/) { - &fail($r,'not_valid'); + &Apache::loncommon::content_type($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 %crumb_titles = &slot_command_titles(); + my $brcrum; + + my $vgr=&Apache::lonnet::allowed('vgr',$env{'request.course.id'}); + my $mgr=&Apache::lonnet::allowed('mgr',$env{'request.course.id'}); + my (%slots,$consumed_uniqueperiods); + if ($env{'form.command'} eq 'showslots') { + if (($vgr ne 'F') && ($mgr ne 'F')) { + $env{'form.command'} = 'manageresv'; + } + } elsif ($env{'form.command'} eq 'manageresv') { + if (($vgr eq 'F') || ($mgr eq 'F')) { + $env{'form.command'} = 'showslots'; + } + } + my $title='Requesting Another Worktime'; + if ($env{'form.command'} eq 'showresv') { + $title = 'Reservation History'; + if ($env{'form.origin'} eq 'aboutme') { + $brcrum =[{href=>"/adm/$env{'form.udom'}/$env{'form.uname'}/aboutme",text=>'Personal Information Page'}]; + } else { + $brcrum =[{href=>"/adm/slotrequest?command=manageresv",text=>'Manage Reservations'}]; + } + if (ref($brcrum) eq 'ARRAY') { + push(@{$brcrum},{href=>"/adm/slotrequest?command=showresv",text=>$title}); + } + } elsif (($env{'form.requestattempt'}) || ($env{'form.command'} eq 'manageresv')) { + if ($env{'form.command'} eq 'manageresv') { + $title = 'Manage Reservations'; + $brcrum =[{href=>"/adm/slotrequest?command=manageresv",text=>$title}]; + } + my ($cnum,$cdom)=&get_course(); + %slots = &Apache::lonnet::get_course_slots($cnum,$cdom); + $consumed_uniqueperiods = &get_consumed_uniqueperiods(\%slots); + } elsif ($vgr eq 'F') { + if ($env{'form.command'} =~ /^(slotlog|showslots|uploadstart|csvuploadmap|csvuploadassign|delete|release|remove_registration)$/) { + $brcrum =[{href=>"/adm/slotrequest?command=showslots", + text=>$crumb_titles{'showslots'}}]; + $title = 'Managing Slots'; + unless ($env{'form.command'} eq 'showslots') { + if (ref($brcrum) eq 'ARRAY') { + push(@{$brcrum},{href=>"/adm/slotrequest?command=$env{'form.command'}",text=>$crumb_titles{$env{'form.command'}}}); + } + } + } + } elsif ($env{'form.command'} eq 'release') { + if ($env{'form.context'} eq 'usermanage') { + $brcrum =[{href=>"/adm/slotrequest?command=manageresv", + text=>$crumb_titles{'showslots'}}]; + $title = 'Manage Reservations'; + if (ref($brcrum) eq 'ARRAY') { + push(@{$brcrum},{href=>"/adm/slotrequest?command=$env{'form.command'}",text=>$crumb_titles{$env{'form.command'}}}); + } + } + } else { + $brcrum =[]; + } + my ($symb,$js,$available,$allavailable,$got_slots); + $available = []; if ($env{'form.requestattempt'}) { - &show_choices($r,$symb); - } elsif ($env{'form.command'} eq 'get') { - &get_slot($r,$symb); + $symb=&unescape($env{'form.symb'}); + @{$got_slots}=&check_for_reservation($symb,'allslots'); + } + if (($env{'form.requestattempt'}) || ($env{'form.command'} eq 'manageresv')) { + $js = &reservation_js(\%slots,$consumed_uniqueperiods,$available,$got_slots,$symb); + } + &start_page($r,$title,$brcrum,$js); + + if ($env{'form.command'} eq 'manageresv') { + $allavailable = $available; + undef($available); + undef($got_slots); + my $crstype = &Apache::loncommon::course_type(); + &manage_reservations($r,$crstype,\%slots,$consumed_uniqueperiods,$allavailable); + } elsif ($env{'form.command'} eq 'showresv') { + &show_reservations($r,$env{'form.uname'},$env{'form.udom'}); + } elsif ($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); + } + } elsif (($env{'form.command'} eq 'slotlog') && ($vgr eq 'F')) { + &show_reservations_log($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'}) { + $r->print('
    '); + &show_choices($r,$symb,undef,undef,\%slots,$consumed_uniqueperiods,$available,$got_slots); + $r->print('
    '); + } elsif ($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 ($env{'form.nochange'}) { + my $slot_name = $env{'form.releaseslot'}; + my @slots = &check_for_reservation($symb,'allslots'); + my $msg; + if (($slot_name ne '') && (grep(/^\Q$slot_name\E/,@slots))) { + my %slot=&Apache::lonnet::get_slot($env{'form.releaseslot'}); + my $description=&get_description($slot_name,\%slot); + $msg = ''. + &mt('Unchanged reservation: [_1]',$description).'

    '; + my $person = + &Apache::loncommon::plainname($env{'user.name'},$env{'user.domain'}); + my $subject = &mt('Reservation unchanged: [_1]',$description); + my $msgbody = &mt('No change to existing registration by [_1] for [_2].',$person,$description); + $msg .= &slot_change_messaging($slot{'reservationmsg'},$subject,$msgbody,'nochange'); + } else { + $msg = ''.&mt('Reservation no longer reported as available.').''; + } + $r->print($msg); + &return_link($r); + } elsif (&get_slot($r,$symb,$env{'form.releaseslot'},1)) { + &release_slot($r,$symb,$env{'form.releaseslot'}); + } + } else { + $r->print('

    '.&mt('Unknown command: [_1]',$env{'form.command'}).'

    '); + } } &end_page($r); return OK;