--- loncom/interface/lonfeedback.pm 2012/01/04 23:31:36 1.321 +++ loncom/interface/lonfeedback.pm 2012/01/09 19:56:28 1.330 @@ -1,7 +1,7 @@ # The LearningOnline Network # Feedback # -# $Id: lonfeedback.pm,v 1.321 2012/01/04 23:31:36 www Exp $ +# $Id: lonfeedback.pm,v 1.330 2012/01/09 19:56:28 www Exp $ # # Copyright Michigan State University Board of Trustees # @@ -759,11 +759,17 @@ END sub discussion_link { - my ($ressymb,$linktext,$cmd,$item,$flag,$prev,$adds)=@_; + my ($ressymb,$linktext,$cmd,$item,$flag,$prev,$adds,$title)=@_; my $link='/adm/feedback?inhibitmenu=yes&modal=yes&'.$cmd.'='.&escape($ressymb).':::'.$item; if ($flag) { $link .= '&previous='.$prev; } if ($adds) { $link .= $adds; } - return &Apache::loncommon::modal_link($link,$linktext,600,600); + my $width=600; + my $height=600; + if (($cmd eq 'hide') || ($cmd eq 'unhide') || ($cmd eq 'like') || ($cmd eq 'unlike')) { + $width=300; + $height=200; + } + return &Apache::loncommon::modal_link($link,$linktext,$width,$height,undef,undef,$title); } @@ -781,10 +787,12 @@ sub send_feedback_link { sub send_message_link { my ($ressymb) = @_; my $output = ''. - ' '.&mt('Send Feedback').''; + &discussion_link($ressymb, + ''.&mt('Send Feedback').'', + 'sendmessageonly'). + ''; return $output; } @@ -821,7 +829,17 @@ sub action_links_bar { $discussion .= '&previous='.$prevread; } $discussion .= &group_args($group); - $discussion .= '">'.&mt('Export').''; + $discussion .= '">'.&mt('Export').''; + if (&Apache::lonnet::allowed('rin',$env{'request.course.id'})) { + $discussion .= '  '; + $discussion .=''.&mt('Undelete all deleted entries').''; + } + $discussion.=''; if ($newpostsflag) { if (!$markondisp) { $discussion .=' -
 + $lt{'note'}
-$lt{'title'}: 

+$lt{'title'}: 
ENDDISCUSS if ($env{'form.origpage'}) { @@ -925,16 +943,26 @@ sub build_posting_display { my $skip_group_check = 0; my $symb=&Apache::lonenc::check_decrypt($ressymb); my $escsymb=&escape($ressymb); +# These are the discussion contributions my %contrib=&Apache::lonnet::restore($symb,$env{'request.course.id'}, $env{'course.'.$env{'request.course.id'}.'.domain'}, $env{'course.'.$env{'request.course.id'}.'.num'}); - +# And these are the likes/unlikes + my %likes=&Apache::lonnet::dump('disclikes', + $env{'course.'.$env{'request.course.id'}.'.domain'}, + $env{'course.'.$env{'request.course.id'}.'.num'}, + '^'.$symb.':'); + my $thisuser=$env{'user.name'}.':'.$env{'user.domain'}; +# Array with likes to figure out averages, etc. + my @theselikes=(); +# Is the user allowed to see the real name behind anonymous postings? my $see_anonymous = &Apache::lonnet::allowed('rin',$env{'request.course.id'}.($env{'request.course.sec'}?'/'.$env{'request.course.sec'}:'')); if ((@{$grouppick} == 0) || (grep(/^all$/,@{$grouppick}))) { $skip_group_check = 1; } +# Deletions and hiddens are just lists. Split them up into a hash for quicker lookup my (%deletions,%hiddens); if ($contrib{'deleted'}) { my $deleted = $contrib{'deleted'}; @@ -948,6 +976,7 @@ sub build_posting_display { $hidden =~ s/\.$//; %hiddens = map { $_ => 1 } (split(/\.\./,$hidden)); } +# Versions if store/restore are used to actually store the messages. if ($contrib{'version'}) { my $oldest = $contrib{'1:timestamp'}; if ($prevread eq '0') { @@ -958,11 +987,48 @@ sub build_posting_display { ($skiptest,$roleregexp,$secregexp,$statusregexp) = &filter_regexp($rolefilter,$sectionpick,$statusfilter); $rolematch = $roleregexp.':'.$secregexp.':'.$statusregexp; - } + } +# We need to go through this twice, first to get the likes/dislikes, then to actually build the display + for (my $id=1;$id<=$contrib{'version'};$id++) { + my $idx=$id; + next if ($contrib{$idx.':deleted'}); + next if ($contrib{$idx.':hidden'}); + unless ((($hiddens{$idx}) && (!$seeid)) || ($deletions{$idx}) || (!$contrib{$idx.':message'})) { + push(@theselikes,$likes{$symb.':'.$idx.':likes'}); + } + } +# Figure out average likes and standard deviation if there are enough discussions to warrant that + my $ave=0; + my $stddev=10000; + if ($#theselikes>1) { + my $sum=0; + my $num=$#theselikes+1; + foreach my $thislike (@theselikes) { + $sum+=$thislike; + } + $ave=$sum/$num; + my $sumsq=0; + foreach my $thislike (@theselikes) { + $sumsq+=($thislike-$ave)*($thislike-$ave); + } + $stddev=sqrt($sumsq/$num); + } +# Now we know the average likes $ave and the standard deviation $stddev +# Get the boundaries for markup + my $oneplus=$ave+$stddev; + my $twoplus=$ave+2.*$stddev; + my $oneminus=$ave-$stddev; + my $twominus=$ave-2.*$stddev; +# &Apache::lonnet::logthis(join(',',@theselikes)." Ave $ave StdDev $stddev $twominus $oneminus $oneplus $twoplus"); +# +# This is now the real loop. Go through all entries, pick up what we need +# for (my $id=1;$id<=$contrib{'version'};$id++) { my $idx=$id; next if ($contrib{$idx.':deleted'}); next if ($contrib{$idx.':hidden'}); +# If we get here, we are actually going to display the message - we don't know where and we don't know if we display +# previous edits, but it counts as one entry my $posttime = $contrib{$idx.':timestamp'}; if ($prevread <= $posttime) { $$newpostsflag = 1; @@ -1090,6 +1156,18 @@ sub build_posting_display { @{$$namesort{$lastname}{$firstname}} = ("$idx"); } if ($outputtarget ne 'tex') { + unless ($likes{$symb.':'.$idx.':likers'}=~/\,\Q$thisuser\E\,/) { + $sender.=' '.&discussion_link($symb,''.&mt('Like').'','like',$idx,$$newpostsflag,$prevread,&group_args($group),&mt("Like")); + } + unless ($likes{$symb.':'.$idx.':unlikers'}=~/\,\Q$thisuser\E\,/) { + $sender.=' '.&discussion_link($symb,''.&mt('Unlike').'',,'unlike',$idx,$$newpostsflag,$prevread,&group_args($group),&mt("Unlike")); + } + my $thislikes=$likes{$symb.':'.$idx.':likes'}; + if ($thislikes>0) { + $sender.=' ('.&mt("[_1] likes",$thislikes).')'; + } elsif ($thislikes<0) { + $sender.=' ('.&mt("[_1] unlikes",abs($thislikes)).')'; + } if (&editing_allowed($escsymb.':::'.$idx,$group)) { if (($env{'user.domain'} eq $contrib{$idx.':senderdomain'}) && ($env{'user.name'} eq $contrib{$idx.':sendername'})) { $sender.=' '. @@ -1272,8 +1350,23 @@ sub build_posting_display { if ($$dischash{$toggkey}) { $$discussionitems[$idx].='  '.$ctlink; } +# Figure out size based on likes + my $thislikes=$likes{$symb.':'.$idx.':likes'}; + my $likesize="100"; + if ($thislikes>$twoplus) { + $likesize="200"; + } elsif ($thislikes>$oneplus) { + $likesize="150"; + } + if ($thislikes<$twominus) { + $likesize="50"; + } elsif ($thislikes<$oneminus) { + $likesize="75"; + } $$discussionitems[$idx].= '
'. - $message.'
'; + "
". + $message. + '
'; if ($contrib{$idx.':history'}) { my @postversions = (); $$discussionitems[$idx] .= &mt('This post has been edited by the author.'); @@ -1292,12 +1385,19 @@ sub build_posting_display { $$discussionitems[$idx] .= ''.$version.'. - '.&Apache::lonlocal::locallocaltime($postversions[$i]).' '; } } +# end of unless ($$notshown ...) } +# end of if ($message) ... } +# end of the else-branch of target being export } +# end of unless hidden or deleted } +# end of the loop over all discussion entries } +# end of "if there actually are any discussions } +# end of subroutine "build_posting_display" } sub filter_regexp { @@ -2625,8 +2725,8 @@ sub screen_header { unless (($env{'form.replydisc'}) || ($env{'form.editdisc'})) { if (($feedurl=~/^\/res\//) && ($feedurl!~/^\/res\/adm/) && ($env{'user.adv'})) { $msgoptions= - '

'; + '
'; } my %optionhash=(); foreach my $type ('question','comment','policy') { @@ -2634,20 +2734,20 @@ sub screen_header { } if (&feedback_available(1)) { $msgoptions.= - '

'; + '
'; } if (&feedback_available(0,1)) { $msgoptions.= - '

'; + '
'; } if (&feedback_available(0,0,1)) { $msgoptions.= - '

'; + '
'; } } if (($env{'request.course.id'}) && (!$env{'form.sendmessageonly'})) { @@ -3554,7 +3654,7 @@ sub handler { # --------------------------- Get query string for limited number of parameters &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'}, - ['modal','hide','unhide','deldisc','postdata','preview','replydisc','editdisc','cmd','symb','onlyunread','allposts','onlyunmark','previous','markread','markonread','markondisp','toggoff','toggon','modifydisp','changes','navtime','navmaps','navurl','sortposts','applysort','rolefilter','statusfilter','sectionpick','groupick','posterlist','userpick','attach','origpage','currnewattach','deloldattach','keepold','allversions','export','sendmessageonly','group','ref']); + ['like','unlike','modal','hide','unhide','deldisc','undeleteall','postdata','preview','replydisc','editdisc','cmd','symb','onlyunread','allposts','onlyunmark','previous','markread','markonread','markondisp','toggoff','toggon','modifydisp','changes','navtime','navmaps','navurl','sortposts','applysort','rolefilter','statusfilter','sectionpick','groupick','posterlist','userpick','attach','origpage','currnewattach','deloldattach','keepold','allversions','export','sendmessageonly','group','ref']); my $group = $env{'form.group'}; my %attachmax = ( text => &mt('(128 KB max size)'), @@ -3834,41 +3934,60 @@ ENDREDIR my $entry=$env{'form.like'}?$env{'form.like'}:$env{'form.unlike'}; my ($symb,$idx)=split(/\:\:\:/,$entry); ($symb,my $feedurl)=&get_feedurl_and_clean_symb($symb); - my %contrib=&Apache::lonnet::restore($symb,$env{'request.course.id'}, - $env{'course.'.$env{'request.course.id'}.'.domain'}, - $env{'course.'.$env{'request.course.id'}.'.num'}); +# +# Likes and unlikes are in db-file "disclikes" of the course +# The prefix is the $symb to identify the resource discussion, +# and the $idx to identify the entry +# + my $prefix=$symb.':'.$idx.':'; + my %contrib=&Apache::lonnet::dump('disclikes', + $env{'course.'.$env{'request.course.id'}.'.domain'}, + $env{'course.'.$env{'request.course.id'}.'.num'}, + '^'.$prefix); # Get all who like or unlike this - my $currentlikers=$contrib{$idx.':likers'}; - my $currentunlikers=$contrib{$idx.':unlikers'}; - my $likes=$contrib{$idx.':likes'}; + my $currentlikers=$contrib{$prefix.'likers'}; + my $currentunlikers=$contrib{$prefix.'unlikers'}; +# Get the current "likes" count + my $likes=$contrib{$prefix.'likes'}; # Find out if they already voted +# Users cannot like a post twice, or unlike it twice. They can change their mind, though my $alreadyflag=0; my $thisuser=$env{'user.name'}.':'.$env{'user.domain'}; if ($env{'form.like'}) { - if ($currentlikers=~/\.\Q$thisuser\E\./) { + if ($currentlikers=~/\,\Q$thisuser\E\,/) { $alreadyflag=1; } else { - $currentunlikers=~s/\.\Q$thisuser\E\.//; - $currentlikers.='.'.$thisuser.'.'; + if ($currentunlikers=~/\,\Q$thisuser\E\,/) { + $currentunlikers=~s/\,\Q$thisuser\E\,//g; + } else { + $currentlikers.=','.$thisuser.','; + } $likes++; } } else { - if ($currentunlikers=~/\.\Q$thisuser\E\./) { + if ($currentunlikers=~/\,\Q$thisuser\E\,/) { $alreadyflag=1; } else { - $currentlikers=~s/\.\Q$thisuser\E\.//; - $currentunlikers.='.'.$thisuser.'.'; + if ($currentlikers=~/\,\Q$thisuser\E\,/) { + $currentlikers=~s/\,\Q$thisuser\E\,//g; + } else { + $currentunlikers.=','.$thisuser.','; + } $likes--; } } my $result; +# $alreadyflag would be 1 if they tried to double-like or double-unlike unless ($alreadyflag) { - my %newhash=($idx.':likes' => $likes, - $idx.':likers' => $currentlikers, - $idx.':unlikers' => $currentunlikers); - if (&Apache::lonnet::store(\%newhash,$symb,$env{'request.course.id'}, - $env{'course.'.$env{'request.course.id'}.'.domain'}, - $env{'course.'.$env{'request.course.id'}.'.num'}) eq 'ok') { + my %newhash=($prefix.'likes' => $likes, + $prefix.'likers' => $currentlikers, + $prefix.'unlikers' => $currentunlikers); +# Store data in db-file "disclikes" + if (&Apache::lonnet::put('disclikes', + \%newhash, + $env{'course.'.$env{'request.course.id'}.'.domain'}, + $env{'course.'.$env{'request.course.id'}.'.num'}) eq 'ok') { +# Also store with the person who posted the liked/unliked entry if ($env{'form.like'}) { &storediscussionlikes(1,$contrib{$idx.':sendername'},$contrib{$idx.':senderdomain'}); $result=&mt("Registered 'Like'"); @@ -3877,6 +3996,7 @@ ENDREDIR $result=&mt("Registered 'Unlike'"); } } else { +# Oops, something went wrong $result=&mt("Failed to register vote"); } } @@ -3967,6 +4087,24 @@ ENDREDIR &Apache::loncommon::end_page(); $r->print($start_page.$discussion.$end_page); return OK; + + } elsif ($env{'form.undeleteall'}) { + &Apache::loncommon::content_type($r,'text/html'); + $r->send_http_header; + my ($symb,$feedurl) = &get_feedurl_and_clean_symb($env{'form.undeleteall'}); + $r->print(&Apache::loncommon::start_page('Undelete all deleted discussion entries')); + if (&Apache::lonnet::allowed('rin',$env{'request.course.id'})) { + if (&Apache::lonnet::store({'deleted' => ''},$symb,$env{'request.course.id'}, + $env{'course.'.$env{'request.course.id'}.'.domain'}, + $env{'course.'.$env{'request.course.id'}.'.num'}) eq 'ok') { + $r->print(&Apache::lonhtmlcommon::confirm_success(&mt("Undeleted all entries"))); + } else { + $r->print(&Apache::lonhtmlcommon::confirm_success(&mt("Failed to undelete entries"),1)); + } + $r->print("
".&mt("Return and reload").""); + } + $r->print(&Apache::loncommon::end_page()); + return OK; } else { # ------------------------------------------------------------- Normal feedback my $feedurl=$env{'form.postdata'}; @@ -3982,6 +4120,8 @@ ENDREDIR $symb=(split(/\:\:\:/,$env{'form.editdisc'}))[0]; } elsif ($env{'form.origpage'}) { $symb=""; + } elsif ($env{'form.sendmessageonly'}) { + $symb=(split(/\:\:\:/,$env{'form.sendmessageonly'}))[0]; } else { $symb=&Apache::lonnet::symbread($feedurl); }