--- loncom/interface/slotrequest.pm 2005/08/09 07:34:51 1.5 +++ loncom/interface/slotrequest.pm 2005/11/21 18:55:41 1.33 @@ -1,7 +1,7 @@ # The LearningOnline Network with CAPA # Handler for requesting to have slots added to a students record # -# $Id: slotrequest.pm,v 1.5 2005/08/09 07:34:51 albertel Exp $ +# $Id: slotrequest.pm,v 1.33 2005/11/21 18:55:41 albertel Exp $ # # Copyright Michigan State University Board of Trustees # @@ -34,24 +34,29 @@ use Apache::Constants qw(:common :http : use Apache::loncommon(); use Apache::lonlocal; use Apache::lonnet; +use Date::Manip; 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_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').'

'); &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 { @@ -125,9 +130,9 @@ sub check_for_reservation { &Apache::lonxml::debug(time." $slot_name ". $slots{$slot_name}->{'starttime'}." -- ". $slots{$slot_name}->{'startreserve'}); - if ($slots{$slot_name}->{'starttime'} > time && + if ($slots{$slot_name}->{'endtime'} > time && $slots{$slot_name}->{'startreserve'} < time) { - # between start of reservation times and start of slot + # between start of reservation times and end of slot return($slot_name, $slots{$slot_name}); } } @@ -158,9 +163,6 @@ sub check_for_conflict { } -# FIXME - depends on the parameter for the resource to be correct -# to prevent multiple reservations - sub make_reservation { my ($slot_name,$slot,$symb)=@_; @@ -189,7 +191,6 @@ sub make_reservation { my (@ids)=&get_reservation_ids($slot_name); - # FIXME we could end up having holes... my $last=0; foreach my $id (@ids) { my $num=(split('\0',$id))[1]; @@ -198,9 +199,9 @@ 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'}, @@ -213,7 +214,6 @@ 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.':'.$new_value; @@ -231,13 +231,89 @@ sub make_reservation { return undef; } +sub remove_registration { + my ($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,$symb)=@_; + my ($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'}; + } + # 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 %slot=&Apache::lonnet::get_slot($slot_name); + 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) { + $r->print('

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

'); + } + return 1; } sub get_slot { @@ -246,30 +322,54 @@ sub get_slot { my $slot_name=&check_for_conflict($symb,$env{'form.slotname'}); if ($slot_name) { my %slot=&Apache::lonnet::get_slot($slot_name); - my $description=&get_description($env{'form.slotname'},\%slot); - $r->print("

Already have a reservation: $description

"); - $r->print('

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

'); - # FIXME add button to free current reservation adn get new one + 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 '. + &mt('Return to last resource').'

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

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

'); + } 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 ($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($reserved)) { + if ($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; + } } - my %lt=('request'=>"Request another attempt", + my %lt=('request'=>"Availibility list", 'try' =>'Try again'); %lt=&Apache::lonlocal::texthash(%lt); @@ -358,7 +458,8 @@ sub show_choices { my $description=&get_description($slot,$slots{$slot}); my $form=&mt('Unavailable'); - if (&space_available($slot,$slots{$slot},$symb)) { + if (($slot eq $got_slot) || + &space_available($slot,$slots{$slot},$symb)) { my $text=&mt('Select'); my $command='get'; if ($slot eq $got_slot) { @@ -390,19 +491,178 @@ STUFF $r->print(''); } +sub to_show { + my ($when,$slot) = @_; + my $time=time; + my $week=60*60*24*7; + if ($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 ($r,$symb)=@_; + 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; - $r->print(''); - foreach my $slot (sort - { return $slots{$a}->{'starttime'} <=> $slots{$b}->{'starttime'} } - (keys(%slots))) { + if ($mgr eq 'F') { + $r->print('
'); + $r->print('
+ + +'); + $r->print('
+ +'); + $r->print('
'); + } + + my %Saveable_Parameters = ('show' => 'array', + 'when' => 'scalar', + 'order' => 'scalar'); + + &Apache::loncommon::store_course_settings('slotrequest',\%Saveable_Parameters); + &Apache::loncommon::restore_course_settings('slotrequest',\%Saveable_Parameters); + + my %show_fields=&Apache::lonlocal::texthash( + 'name' => 'Slot Name', + 'description' => 'Description', + 'type' => 'Type', + 'starttime' => 'Start time', + 'endtime' => 'End Time', + 'startreserve' => 'Time students can start reserving', + 'secret' => 'Secret Word', + 'maxspace' => 'Maxium # of students', + 'ip' => 'IP or DNS restrictions', + 'symb' => 'Resource slot is restricted to.', + 'uniqueperiod' => 'Period of time slot is unique', + 'proctor' => 'List of proctors'); + my @show_order=('name','description','type','starttime','endtime', + 'startreserve','secret','maxspace','ip','symb', + 'uniqueperiod','proctor'); + my @show = + (exists($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'); + my @when_order=('now','nextweek','lastweek','willopen','wereopen'); + $when_fields{'select_form_order'} = \@when_order; + my $when = (exists($env{'form.when'})) ? $env{'form.when'} + : 'now'; + + $r->print(' +'); + $r->print('
'); + $r->print('
'.&mt('Show').''.&mt('Open').'
'.&Apache::loncommon::multiple_select_form('show',\@show,6,\%show_fields,\@show_order). + ''.&Apache::loncommon::select_form($when,'when',%when_fields). + '
'); + $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 $slotsort (keys(%slots))) { + if (!&to_show($when,$slots{$slot})) { next; } if (defined($slots{$slot}->{'type'}) && $slots{$slot}->{'type'} ne 'schedulable_student') { - next; + #next; } my $description=&get_description($slot,$slots{$slot}); my %consumed=&Apache::lonnet::dump('slot_reservations',$cdom,$cnum, @@ -410,43 +670,418 @@ sub show_table { my $ids; foreach my $entry (sort(keys(%consumed))) { my (undef,$id)=split("\0",$entry); - $ids.= $id.'-> '.$consumed{$entry}->{'name'}.'
'; + my ($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 $start=localtime($slots{$slot}->{'starttime'}); - my $end=localtime($slots{$slot}->{'endtime'}); - $r->print(<{'starttime'}? + &Apache::lonlocal::locallocaltime($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=(<Edit +EDITLINK + + $r->print("\n$edit\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(< - $slot - $description - $start - $end - $slots{$slot}->{'maxspace'} - $ids + $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 $symb=&Apache::lonnet::unescape($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()) { + $r->send_http_header(); return OK; } - - if ($env{'form.command'} eq 'showslots') { - &show_table($r,$symb); - } elsif ($env{'form.requestattempt'}) { - &show_choices($r,$symb); - } elsif ($env{'form.command'} eq 'release') { - &release_slot($r,$symb); - } elsif ($env{'form.command'} eq 'get') { - &get_slot($r,$symb); + + &Apache::loncommon::get_unprocessed_cgi($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 '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); + if ($res !~ /\.task$/) { + &fail($r,'not_valid'); + return OK; + } + $env{'request.symb'}=$symb; + my ($status) = &Apache::lonhomework::check_task_access('0'); + if ($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') { + &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;