--- loncom/interface/slotrequest.pm 2005/05/31 17:42:11 1.1 +++ loncom/interface/slotrequest.pm 2006/02/03 23:42:54 1.43 @@ -1,7 +1,7 @@ # The LearningOnline Network with CAPA # Handler for requesting to have slots added to a students record # -# $Id: slotrequest.pm,v 1.1 2005/05/31 17:42:11 albertel Exp $ +# $Id: slotrequest.pm,v 1.43 2006/02/03 23:42:54 albertel Exp $ # # Copyright Michigan State University Board of Trustees # @@ -34,19 +34,28 @@ use Apache::Constants qw(:common :http : use Apache::loncommon(); use Apache::lonlocal; use Apache::lonnet; +use Date::Manip; sub fail { my ($r,$code)=@_; - $r->print(); + if ($code eq 'not_valid') { + $r->print('

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

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

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

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

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

'); + } + + &return_link($r); &end_page($r); } sub start_page { - my ($r)=@_; + my ($r,$title)=@_; my $html=&Apache::lonxml::xmlbegin(); - $r->print($html.''. - &mt('Request another Worktime').''); - $r->print(&Apache::loncommon::bodytag('Requesting another Worktime')); + $r->print($html.''.&mt($title).''); + $r->print(&Apache::loncommon::bodytag($title)); } sub end_page { @@ -54,17 +63,1182 @@ sub end_page { $r->print(&Apache::loncommon::endbodytag().''); } +=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::lonxml::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, + "^$slot_name\0"); + if (&network_error(%consumed)) { + return 'error: Unable to determine current status'; + } + my ($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, $cnum); + + if (&network_error($student) || &network_error($course) || + &network_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 ($mode eq 'allslots' && @got) { + return @got; + } + return (undef,undef); +} + +sub check_for_conflict { + my ($symb,$new_slot_name,$new_slot,$slots)=@_; + + if (!defined($new_slot->{'uniqueperiod'})) { return undef; } + + 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,$cdom)=&get_course(); + if (!ref($slots)) { + my %slots=&Apache::lonnet::get('slots', [@slots], $cdom, $cnum); + $slots = \%slots; + } + + if (&network_error($student) || &network_error($course) || + &network_error(%$slots)) { + return 'error: Unable to determine current status'; + } + + my ($new_uniq_start,$new_uniq_end) = @{$new_slot->{'uniqueperiod'}}; + foreach my $slot_name (@slots) { + next if (!defined($slots->{$slot_name}) || + !ref($slots->{$slot_name})); + + next if (!defined($slots->{$slot_name}{'uniqueperiod'}) || + !ref($slots->{$slot_name}{'uniqueperiod'})); + my ($start,$end)=@{$slots->{$slot_name}{'uniqueperiod'}}; + if (! + ($start < $new_uniq_start && $end < $new_uniq_start) || + ($start > $new_uniq_end && $end > $new_uniq_end )) { + return $slot_name; + } + } + return undef; + +} + +sub network_error { + my ($result) = @_; + if ($result =~ /^(con_lost|no_such_host|error: [^2])/) { + return 1; + } + return 0; +} + +sub make_reservation { + my ($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 $value
"); + if (&network_error($value)) { + return 'error: Unable to determine current status'; + } + + 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 (&network_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 (&network_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
"); + if (scalar(@ids) >= $max) { + # full up + return undef; + } + + my %reservation=('name' => $env{'user.name'}.'@'.$env{'user.domain'}, + 'timestamp' => time, + 'symb' => $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', + 1, $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) = @_; + my $name = &Apache::loncommon::plainname($env{'form.uname'}, + $env{'form.udom'}); + + my $title = &Apache::lonnet::gettitle($env{'form.symb'}); + + my $hidden_input; + foreach my $parm ('uname','udom','slotname','entry','symb') { + $hidden_input .= + '&\'').'" />'."\n"; + } + $r->print(<<"END_CONFIRM"); +

Remove $name from slot $env{'form.slotname'} for $title

+
+ + $hidden_input + +
+
+ + +
+END_CONFIRM + +} + +sub release_slot { + my ($r,$symb,$slot_name,$inhibit_return_link,$mgr)=@_; + + if ($slot_name eq '') { $slot_name=$env{'form.slotname'}; } + my ($cnum,$cdom)=&get_course(); + + 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 = $env{'form.symb'}; + } + my %slot=&Apache::lonnet::get_slot($slot_name); + my $description=&get_description($env{'form.slotname'},\%slot); + + if ($mgr ne 'F') { + if ($slot{'starttime'} < time) { + $r->print("

Not allowed to release Reservation: $description, as it has already ended.

"); + &return_link($r); + return 0; + } + } + # 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 $new_param = join(':',@new_slots); + + # get slot reservations, check if user has one, if so remove reservation + my %consumed=&Apache::lonnet::dump('slot_reservations',$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); + } + } + + # store new parameter string + my $result=&Apache::lonparmset::storeparm_by_symb($symb, + '0_availablestudent', + 1, $new_param, 'string', + $uname,$udom); + my $description=&get_description($env{'form.slotname'},\%slot); + $r->print("

Released Reservation: $description

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

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

'); + } + if (!$inhibit_return_link) { &return_link($r); } + return 1; +} + +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("

Slot $slot_name marked as deleted.

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

An error ($ret) occurse when attempting to delete Slot $slot_name.

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

Slot $slot_name has active reservations.

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

Slot $slot_name does not exist.

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

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

'); + &return_link($r); +} + +sub return_link { + my ($r) = @_; + $r->print('

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

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

An error occured while attempting to make a reservation. ($1)

"); + &return_link($r); + return; + } + if ($slot_name) { + 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("

Already have a reservation: $description1

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

You can either "); + $r->print(< +STUFF + $r->print(' your reservation from '.$description1.' to '. + $description2. + '
or

'); + &return_link($r); + $r->print(< +STUFF + } else { + &return_link($r); + } + return; + } + my %slot=&Apache::lonnet::get_slot($env{'form.slotname'}); + my $reserved=&make_reservation($env{'form.slotname'}, + \%slot,$symb); + my $description=&get_description($env{'form.slotname'},\%slot); + if (defined($reserved)) { + if ($slot_name =~ /^error: (.*)/) { + $r->print("

An error occured while attempting to make a reservation. ($1)

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

Success: $description

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

Already reserved: $description

"); + } + &return_link($r); + return; + } + + my %lt=('request'=>"Availibility list", + 'try' =>'Try again'); + %lt=&Apache::lonlocal::texthash(%lt); + + $r->print(< Failed to reserve a spot for $description.

+

+

+ + + + +
+? +

+

+or +

+ + +
+

+or +STUFF + + &return_link($r); + return; +} + +sub allowed_slot { + my ($slot_name,$slot,$symb)=@_; + #already started + if ($slot->{'starttime'} < time) { + # all open slot to be schedulable + #return 0; + } + &Apache::lonxml::debug("$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"); + # not allowed for this resource + if (defined($slot->{'symb'}) + && $slot->{'symb'} ne $symb) { + return 0; + } + &Apache::lonxml::debug("$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 $available; + $r->print(''); + &Apache::lonxml::debug("Checking Slots"); + my @got_slots=&check_for_reservation($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})); + + $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('Free Reservation'); + $command='release'; + } else { + my $conflict = &check_for_conflict($symb,$slot,$slots{$slot}, + \%slots); + if ($conflict) { + $text=&mt('Change Reservation'); + $command='get'; + } + } + my $escsymb=&Apache::lonnet::escape($symb); + $form=< + + + + + +STUFF + } + $r->print(< + + + +STUFF + } + + if (!$available) { + $r->print(''); + } + $r->print('
$form$description
No available times. '. + &mt('Return to last resource').'
'); +} + +sub to_show { + my ($slot,$when,$deleted) = @_; + my $time=time; + my $week=60*60*24*7; + if ($deleted eq 'hide' && $slot->{'type'} eq 'deleted') { + return 0; + } + if ($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) = @_; + + $slotname = &Apache::lonnet::escape($slotname); + $entry = &Apache::lonnet::escape($entry); + $uname = &Apache::lonnet::escape($uname); + $udom = &Apache::lonnet::escape($udom); + $symb = &Apache::lonnet::escape($symb); + + my $remove= &mt('Remove'); + + return <<"END_LINK"; + ($remove) +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') { + $r->print('
'); + $r->print('
+ + +
'); + $r->print('
+ +
'); + $r->print('
'); + } + + my %Saveable_Parameters = ('show' => 'array', + 'when' => 'scalar', + 'order' => 'scalar', + 'deleted' => 'scalar', + ); + &Apache::loncommon::store_course_settings('slotrequest',\%Saveable_Parameters); + &Apache::loncommon::restore_course_settings('slotrequest',\%Saveable_Parameters); + + my %show_fields=&Apache::lonlocal::texthash( + 'name' => 'Slot Name', + 'description' => 'Description', + 'type' => 'Type', + 'starttime' => 'Start time', + 'endtime' => 'End Time', + 'startreserve' => 'Time students can start reserving', + 'secret' => 'Secret Word', + 'maxspace' => 'Maximum # of students', + 'ip' => 'IP or DNS restrictions', + 'symb' => 'Resource slot is restricted to.', + 'uniqueperiod' => 'Period of time slot is unique', + 'proctor' => 'List of proctors'); + my @show_order=('name','description','type','starttime','endtime', + 'startreserve','secret','maxspace','ip','symb', + 'uniqueperiod','proctor'); + my @show = + (exists($env{'form.show'})) ? &Apache::loncommon::get_env_multiple('form.show') + : keys(%show_fields); + my %show = map { $_ => 1 } (@show); + + 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'; + + my $hide_radio = + &Apache::lonhtmlcommon::radio('deleted',$env{'form.deleted'},'hide'); + my $show_radio = + &Apache::lonhtmlcommon::radio('deleted',$env{'form.deleted'},'show'); + + $r->print('
+'); + $r->print('
'); + $r->print(' + + + + + + + + +
'.&mt('Show').''.&mt('Open').''.&mt('Options').'
'.&Apache::loncommon::multiple_select_form('show',\@show,6,\%show_fields,\@show_order). + ''.&Apache::loncommon::select_form($when,'when',%when_fields). + ' + + + + + + + + +
Deleted slots:
+
'); + $r->print('
'); + $r->print('

'); + my $linkstart=' + + '); + foreach my $which (@show_order) { + if ($which ne 'proctor' && exists($show{$which})) { + $r->print(''.$linkstart.$which.'">'.$show_fields{$which}.''); + } + } + $r->print('Scheduled Students'); + + my %name_cache; + my $slotsort = sub { + if ($env{'form.order'}=~/^(type|description|endtime|startreserve|maxspace|ip|symb)$/) { + if (lc($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 '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'}; + }; + foreach my $slot (sort $slotsort (keys(%slots))) { + if (!&to_show($slots{$slot},$when,$env{'form.deleted'})) { next; } + if (defined($slots{$slot}->{'type'}) + && $slots{$slot}->{'type'} ne 'schedulable_student') { + #next; + } + my $description=&get_description($slot,$slots{$slot}); + my %consumed=&Apache::lonnet::dump('slot_reservations',$cdom,$cnum, + "^$slot\0"); + my $ids; + + my ($tmp)=%consumed; + if ($tmp !~ /^error: /) { + foreach my $entry (sort(keys(%consumed))) { + my (undef,$id)=split("\0",$entry); + my ($uname,$udom) = split('@',$consumed{$entry}{'name'}); + my $name = &Apache::loncommon::plainname($uname,$udom); + $ids.= ''.$name.&remove_link($slot,$entry,$uname,$udom, + $consumed{$entry}{'symb'}) + .'
'; + } + } + + 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'}); + $title=''.$title.''; + } + + 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)) { + &Apache::lonnet::logthis("Gettign $uname $udom"); + $fullname = &Apache::loncommon::plainname($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"); +Edit +EDITLINK + + my $delete=(<<"DELETELINK"); +Delete +DELETELINK + if ($ids ne '') { undef($delete); } + + $r->print("\n$edit $delete\n"); + if (exists($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{'secret'})) { + $colspan++;$r->print("$slots{$slot}{'secret'}\n"); + } + if (exists($show{'maxspace'})) { + $colspan++;$r->print("$slots{$slot}{'maxspace'}\n"); + } + if (exists($show{'ip'})) { + $colspan++;$r->print("$slots{$slot}{'ip'}\n"); + } + if (exists($show{'symb'})) { + $colspan++;$r->print("$title\n"); + } + if (exists($show{'uniqueperiod'})) { + $colspan++;$r->print("$unique\n"); + } + $colspan++;$r->print("$ids\n\n"); + if (exists($show{'proctor'})) { + $r->print(< + $proctors + +STUFF + } + } + $r->print(''); +} + +sub upload_start { + my ($r)=@_; + $r->print(&Apache::grades::checkforfile_js()); + my $result.=''."\n"; + $result.='
'."\n"; + $result.=' '. + &mt('Specify a file containing the slot definitions.'). + '
'."\n"; + my $upfile_select=&Apache::loncommon::upfile_select_html(); + my $ignore=&mt('Ignore First Line'); + $result.=< + +$upfile_select +
+ + +ENDUPFORM + $result.='
'."\n"; + $result.=''."\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'); + $r->print(< +

Identify fields

+Total number of records found in file: $distotal
+Enter as many fields as you can. The system will inform you and bring you back +to this page if the data selected is insufficient to create the slots.
+ + + + + + + + +
+ +ENDPICK + return ''; + +} + +sub csvuploadmap_footer { + my ($request,$i,$keyfields) =@_; + $request->print(< + + +
+ +ENDPICK +} + +sub csvupload_javascript_reverse_associate { + my $error1=&mt('You need to specify the name, starttime, endtime and a type'); + return(<[0].','; } + chop($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'], + ['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']); +} + +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('

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{$fields{'endtime'}},"%s"); + } + if ($entries{$fields{'startreserve'}}) { + $slot{'startreserve'}= + &UnixDate($entries{$fields{'startreserve'}},"%s"); + } + 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")); + $slot{'uniqueperiod'}=\@times; + } + + &Apache::lonnet::cput('slots',{$name=>\%slot},$cdom,$cname); + $r->print('.'); + $r->rflush(); + $countdone++; + } + $r->print("

Created $countdone slots\n

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

$error\n

"); + } + &show_table($r,$mgr); + return ''; +} + sub handler { my $r=shift; - &start_page($r); - my $symb=$env{'form.symb'}; - my (undef,undef,$res)=&Apache::lonnet::decode_symb($symb); - if ($symb !~ /\.task$/) { - &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 $vgr=&Apache::lonnet::allowed('vgr',$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' && $mgr eq 'F') { + &release_slot($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 $symb=&Apache::lonnet::unescape($env{'form.symb'}); + my (undef,undef,$res)=&Apache::lonnet::decode_symb($symb); + my $useslots = &Apache::lonnet::EXT("resource.0.useslots",$symb); + if ($useslots ne 'resource') { + &fail($r,'not_valid'); + 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 (&release_slot($r,$symb,$env{'form.releaseslot'},1)) { + &get_slot($r,$symb); + } + } else { + $r->print("

Unknown command: ".$env{'form.command'}."

"); + } + } &end_page($r); return OK; } + +1; +__END__