--- loncom/interface/slotrequest.pm 2005/10/17 19:26:50 1.24 +++ loncom/interface/slotrequest.pm 2009/05/17 21:03:16 1.88.2.1 @@ -1,7 +1,7 @@ # The LearningOnline Network with CAPA # Handler for requesting to have slots added to a students record # -# $Id: slotrequest.pm,v 1.24 2005/10/17 19:26:50 albertel Exp $ +# $Id: slotrequest.pm,v 1.88.2.1 2009/05/17 21:03:16 raeburn Exp $ # # Copyright Michigan State University Board of Trustees # @@ -34,35 +34,35 @@ 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; sub fail { my ($r,$code)=@_; if ($code eq 'not_valid') { $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)=@_; + $r->print(&Apache::loncommon::start_page($title)); } sub end_page { my ($r)=@_; - $r->print(&Apache::loncommon::endbodytag().''); + $r->print(&Apache::loncommon::end_page()); } =pod @@ -77,7 +77,7 @@ 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,$cdom); @@ -90,7 +90,9 @@ sub get_reservation_ids { my %consumed=&Apache::lonnet::dump('slot_reservations',$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; @@ -112,7 +114,7 @@ sub space_available { } sub check_for_reservation { - my ($symb)=@_; + my ($symb,$mode)=@_; my $student = &Apache::lonnet::EXT("resource.0.availablestudent", $symb, $env{'user.domain'}, $env{'user.name'}); @@ -125,7 +127,20 @@ sub check_for_reservation { my ($cnum,$cdom)=&get_course(); my %slots=&Apache::lonnet::get('slots', [@slots], $cdom, $cnum); - foreach my $slot_name (@slots) { + if (&Apache::lonnet::error($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." $slot_name ". @@ -134,34 +149,93 @@ sub check_for_reservation { if ($slots{$slot_name}->{'endtime'} > time && $slots{$slot_name}->{'startreserve'} < time) { # between start of reservation times and end of slot - return($slot_name, $slots{$slot_name}); + 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)=@_; - 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(/:/, $course)); - my ($cnum,$cdom)=&get_course(); - my %slots=&Apache::lonnet::get('slots', [@slots], $cdom, $cnum); - foreach my $slot_name (@slots) { - next if (!defined($slots{$slot_name}) || - !ref($slots{$slot_name})); + my ($symb,$new_slot_name,$new_slot,$slots,$consumed_uniqueperiods)=@_; - next if (!defined($slots{$slot_name}->{'uniqueperiod'}) || - !ref($slots{$slot_name}->{'uniqueperiod'})); - my ($start,$end)=@{$slots{$slot_name}->{'uniqueperiod'}}; - if ($start