--- loncom/interface/loncoursedata.pm 2002/09/03 02:22:40 1.29 +++ loncom/interface/loncoursedata.pm 2002/10/16 13:43:34 1.36 @@ -1,7 +1,7 @@ # The LearningOnline Network with CAPA # (Publication Handler # -# $Id: loncoursedata.pm,v 1.29 2002/09/03 02:22:40 albertel Exp $ +# $Id: loncoursedata.pm,v 1.36 2002/10/16 13:43:34 matthew Exp $ # # Copyright Michigan State University Board of Trustees # @@ -139,7 +139,7 @@ sub DownloadClasslist { %classlist=&Apache::lonnet::dump('classlist',$courseDomain, $courseNumber); foreach(keys (%classlist)) { if(/^(con_lost|error|no_such_host)/i) { - return \%classlist; + return; } } @@ -322,7 +322,8 @@ sub ProcessTopResourceMap { my (@sequences, @currentResource, @finishResource); my ($currentSequence, $currentResourceID, $lastResourceID); - $currentResourceID=$hash{'ids_/res/'.$ENV{'request.course.uri'}}; + $currentResourceID=$hash{'ids_'. + &Apache::lonnet::clutter($ENV{'request.course.uri'})}; push(@currentResource, $currentResourceID); $lastResourceID=-1; $currentSequence=-1; @@ -585,7 +586,24 @@ browser Output: @names @names: An array of students whose information has been processed, and are to -be considered in an arbitrary order. +be considered in an arbitrary order. The entries in @names are of the form +username:domain. + +The values in $cache are as follows: + + *NOTE: for the following $name implies username:domain + $name.':error' only defined if an error occured. Value + contains the error message + $name.':lastDownloadTime' unconverted time of the last update of a + student\'s course data + $name.'updateTime' coverted time of the last update of a + student\'s course data + $name.':username' username of a student + $name.':domain' domain of a student + $name.':fullname' full name of a student + $name.':id' PID of a student + $name.':Status' active/expired status of a student + $name.':section' section of a student =back @@ -608,9 +626,8 @@ sub ProcessClasslist { if($c->aborted()) { return (); } - my $studentInformation = $classlist->{$name.':studentInformation'}, - my $sectionData = $classlist->{$name.':sections'}, - my $date = $classlist->{$name}, + my $studentInformation = $classlist->{$name.':studentInformation'}; + my $date = $classlist->{$name}; my ($studentName,$studentDomain) = split(/\:/,$name); $cache->{$name.':username'}=$studentName; @@ -645,6 +662,7 @@ sub ProcessClasslist { $courseID=~s/^(\w)/\/$1/; my $sec=''; + my $sectionData = $classlist->{$name.':sections'}; foreach my $key (keys (%$sectionData)) { my $value = $sectionData->{$key}; if ($key=~/^$courseID(?:\/)*(\w+)*\_st$/) { @@ -652,7 +670,7 @@ sub ProcessClasslist { if($key eq $courseID.'_st') { $tempsection=''; } - my ($dummy,$roleend,$rolestart)=split(/\_/,$value); + my (undef,$roleend,$rolestart)=split(/\_/,$value); if($roleend eq $end && $rolestart eq $start) { $sec = $tempsection; last; @@ -1066,37 +1084,22 @@ sub ProcessFullName { my ($lastname, $generation, $firstname, $middlename)=@_; my $Str = ''; + # Strip whitespace preceeding & following name components. + $lastname =~ s/(\s+$|^\s+)//g; + $generation =~ s/(\s+$|^\s+)//g; + $firstname =~ s/(\s+$|^\s+)//g; + $middlename =~ s/(\s+$|^\s+)//g; + if($lastname ne '') { - $Str .= $lastname.' '; - if($generation ne '') { - $Str .= $generation; - } else { - chop($Str); - } - $Str .= ', '; - if($firstname ne '') { - $Str .= $firstname.' '; - } - if($middlename ne '') { - $Str .= $middlename; - } else { - chop($Str); - if($firstname eq '') { - chop($Str); - } - } + $Str .= $lastname; + $Str .= ' '.$generation if ($generation ne ''); + $Str .= ','; + $Str .= ' '.$firstname if ($firstname ne ''); + $Str .= ' '.$middlename if ($middlename ne ''); } else { - if($firstname ne '') { - $Str .= $firstname.' '; - } - if($middlename ne '') { - $Str .= $middlename.' '; - } - if($generation ne '') { - $Str .= $generation; - } else { - chop($Str); - } + $Str .= $firstname if ($firstname ne ''); + $Str .= ' '.$middlename if ($middlename ne ''); + $Str .= ' '.$generation if ($generation ne ''); } return $Str; @@ -1250,7 +1253,7 @@ sub DownloadStudentCourseDataSeparate { $WhatIWant .= '|timestamp)'; $WhatIWant .= ')'; - &CheckForResidualDownload($courseID, $cacheDB, $students, $c); + &CheckForResidualDownload($cacheDB, 'true', 'true', $courseID, $r, $c); my $studentCount = scalar(@$students); if($status eq 'true') { @@ -1384,7 +1387,93 @@ sub CheckForResidualDownload { return 'OK'; } +################################################ +################################################ + +=pod + +=item &get_classlist(); + +Retrieve the classist of a given class or of the current class. Student +information is returned from the classlist.db file and, if needed, +from the students environment. + +Optional arguments are $cid, $cdom, and $cnum (course id, course domain, +and course number, respectively). Any omitted arguments will be taken +from the current environment ($ENV{'request.course.id'}, +$ENV{'course.'.$cid.'.domain'}, and $ENV{'course.'.$cid.'.num'}). + +Returns a reference to a hash which contains: + keys '$sname:$sdom' + values [$end,$start,$id,$section,$fullname] + +=cut + +################################################ +################################################ + +sub get_classlist { + my ($cid,$cdom,$cnum) = @_; + $cid = $cid || $ENV{'request.course.id'}; + $cdom = $cdom || $ENV{'course.'.$cid.'.domain'}; + $cnum = $cnum || $ENV{'course.'.$cid.'.num'}; + my $now = time; + # + my %classlist=&Apache::lonnet::dump('classlist',$cdom,$cnum); + while (my ($student,$info) = each(%classlist)) { + return undef if ($student =~ /^(con_lost|error|no_such_host)/i); + my ($sname,$sdom) = split(/:/,$student); + my @Values = split(/:/,$info); + my ($end,$start,$id,$section,$fullname); + if (@Values > 2) { + ($end,$start,$id,$section,$fullname) = @Values; + } else { # We have to get the data ourselves + ($end,$start) = @Values; + $section = &Apache::lonnet::usection($sdom,$sname,$cid); + my %info=&Apache::lonnet::get('environment', + ['firstname','middlename', + 'lastname','generation','id'], + $sdom, $sname); + my ($tmp) = keys(%info); + if ($tmp =~/^(con_lost|error|no_such_host)/i) { + $fullname = 'not available'; + $id = 'not available'; + } else { + $fullname = &ProcessFullName(@info{qw/lastname generation + firstname middlename/}); + $id = $info{'id'}; + } + # Update the classlist with this students information + if ($fullname ne 'not available') { + my $enrolldata = join(':',$end,$start,$id,$section,$fullname); + my $reply=&Apache::lonnet::cput('classlist', + {$student => $enrolldata}, + $cdom,$cnum); + if ($reply !~ /^(ok|delayed)/) { + &Apache::lonnet::logthis('Unable to update classlist for '. + 'student '.$sname.':'.$sdom. + ' error:'.$reply); + } + } + } + my $status='Expired'; + if(((!$end) || $now < $end) && ((!$start) || ($now > $start))) { + $status='Active'; + } + $classlist{$student} = + [$sdom,$sname,$end,$start,$id,$section,$fullname,$status]; + } + if (wantarray()) { + return (\%classlist,['domain','username','end','start','id', + 'section','fullname','status']); + } else { + return \%classlist; + } +} + # ----- END HELPER FUNCTIONS -------------------------------------------- 1; __END__ + +