--- loncom/interface/loncommon.pm 2006/05/17 20:47:06 1.372 +++ loncom/interface/loncommon.pm 2006/05/18 01:08:50 1.375 @@ -1,7 +1,7 @@ # The LearningOnline Network with CAPA # a pile of common routines # -# $Id: loncommon.pm,v 1.372 2006/05/17 20:47:06 albertel Exp $ +# $Id: loncommon.pm,v 1.375 2006/05/18 01:08:50 raeburn Exp $ # # Copyright Michigan State University Board of Trustees # @@ -3709,7 +3709,7 @@ specific user. Roles can be active, prev Inputs: user's domain, user's username, course's domain, -course's number, optional section/group. +course's number, optional section ID. Outputs: role status: active, previous or future. @@ -3760,13 +3760,14 @@ sub check_user_status { Determines all the sections for a course including sections with students and sections containing other roles. -Incoming parameters: domain, course number, reference to -section hash (keys to be section/group IDs), reference to -array containing roles for which sections should be gathered -(optional). If the fourth argument is undefined, sections -are gathered for any role. +Incoming parameters: domain, course number, +reference to array containing roles for which sections should +be gathered (optional). If the third argument is undefined, +sections are gathered for any role. -Returns number of sections. +Returns section hash (keys are section IDs, values are +number of users in each section), subject to the +optional roles filter. =cut @@ -3814,152 +3815,6 @@ sub get_sections { } ############################################### - -=pod - -=item coursegroups - -Retrieve information about groups in a course, - -Input: -1. Reference to hash to populate with group information. -2. Optional course domain -3. Optional course number -4. Optional group name - -Course domain and number will be taken from user's -environment if not supplied. Optional group name will' -be passed to lonnet::get_coursegroups() as a regexp to -use in the call to the dump function. - -Output -Returns number of groups in the course (subject to the -optional group name filter). - -Side effects: -Populates the referenced curr_groups hash, with key, -value pairs. Keys are group names, corresponding values -are scalars containing group information in XML. This -can be sent to &get_group_settings() to be parsed. - -=cut - -############################################### - -sub coursegroups { - my ($cdom,$cnum,$group) = @_; - if (!defined($cdom) || !defined($cnum)) { - my $cid = $env{'request.course.id'}; - - return if (!defined($cid)); - - $cdom = $env{'course.'.$cid.'.domain'}; - $cnum = $env{'course.'.$cid.'.num'}; - } - my %curr_groups = &Apache::lonnet::get_coursegroups($cdom,$cnum,$group); - my ($tmp) = keys(%curr_groups); - if ($tmp=~/^(con_lost|no_such_host|error: [^2] )/) { - undef(%curr_groups); - &logthis('Error retrieving groups: '.$tmp.' in '.$cnum.':'.$cdom); - } elsif ($tmp=~/^error: 2 /) { - undef(%curr_groups); - } - return %curr_groups; -} - -############################################### - -=pod - -=item get_group_settings - -Uses TokeParser to extract group information from the -XML used to describe course groups. - -Input: -Scalar containing XML - as retrieved from &coursegroups(). - -Output: -Hash containing group information as key=values for (a), and -hash of hashes for (b) - -Keys (in two categories): -(a) groupname, creator, creation, modified, startdate,enddate. -Corresponding values are name of the group, creator of the group -(username:domain), UNIX time for date group was created, and -settings were last modified, and default start and end access -times for group members. - -(b) functions returned in hash of hashes. -Outer hash key is functions. -Inner hash keys are chat,discussion,email,files,homepage,roster. -Corresponding values are either on or off, depending on -whether this type of functionality is available for the group. - -=cut - -############################################### - -sub get_group_settings { - my ($groupinfo)=@_; - my $parser=HTML::TokeParser->new(\$groupinfo); - my $token; - my $tool = ''; - my $role = ''; - my %content=(); - while ($token=$parser->get_token) { - if ($token->[0] eq 'S') { - my $entry=$token->[1]; - if ($entry eq 'functions' || $entry eq 'autosec') { - %{$content{$entry}} = (); - $tool = $entry; - } elsif ($entry eq 'role') { - if ($tool eq 'autosec') { - $role = $token->[2]{id}; - } - } else { - my $value=$parser->get_text('/'.$entry); - if ($entry eq 'name') { - if ($tool eq 'functions') { - my $function = $token->[2]{id}; - $content{$tool}{$function} = $value; - } - } elsif ($entry eq 'groupname') { - $content{$entry}=&unescape($value); - } elsif (($entry eq 'roles') || ($entry eq 'types') || - ($entry eq 'sectionpick') || ($entry eq 'defpriv')) { - push(@{$content{$entry}},$value); - } elsif ($entry eq 'section') { - if ($tool eq 'autosec' && $role ne '') { - push(@{$content{$tool}{$role}},$value); - } - } else { - $content{$entry}=$value; - } - } - } elsif ($token->[0] eq 'E') { - if ($token->[1] eq 'functions' || $token->[1] eq 'autosec') { - $tool = ''; - } elsif ($token->[1] eq 'role') { - $role = ''; - } - - } - } - return %content; -} - -sub check_group_access { - my ($group) = @_; - my $access = 1; - my $now = time; - my ($start,$end) = split(/\./,$env{'user.role.gr/'.$env{'request.course,id'}.'/'.$group}); - if (($end!=0) && ($end<$now)) { $access = 0; } - if (($start!=0) && ($start>$now)) { $access=0; } - return $access; -} - -############################################### =pod @@ -5024,6 +4879,7 @@ a hash ref describing the data to be sto 'chartoutputmode' => 'scalar', 'chartoutputdata' => 'scalar', 'Section' => 'array', + 'Group' => 'array', 'StudentData' => 'array', 'Maps' => 'array');