--- rat/lonratedt.pm 2002/06/04 13:23:54 1.30 +++ rat/lonratedt.pm 2005/06/08 15:44:51 1.67 @@ -1,7 +1,7 @@ # The LearningOnline Network with CAPA # Edit Handler for RAT Maps # -# $Id: lonratedt.pm,v 1.30 2002/06/04 13:23:54 www Exp $ +# $Id: lonratedt.pm,v 1.67 2005/06/08 15:44:51 www Exp $ # # Copyright Michigan State University Board of Trustees # @@ -25,21 +25,155 @@ # # http://www.lon-capa.org/ # -# (TeX Content Handler -# -# 05/29/00,05/30 Gerd Kortemeyer) -# 7/1,6/30 Gerd Kortemeyer + package Apache::lonratedt; +=pod + +=head1 NAME + +Apache::lonratedt: advanced resource assembly tool + +=head1 SYNOPSIS + +lonratedt provides the routines and the handler for the Advanced + Resource Assembly Tool (RAT), and ties the various pieces together + with Javascript. + +=head1 OVERVIEW + +=head2 Map Representation + +=begin latex + +% +\begin{figure} +\begin{center}\includegraphics[% + width=0.55\paperwidth,bb = 0 0 200 100, draft, type=eps]{Map_Example}\end{center} + + +\caption{\label{Map_In_Advanced_Editor}Example of a Map in the Advanced Editor} +\end{figure} +% +\begin{figure} +\begin{lyxcode} + + +~~ + +~~~~ + +~~ + +~~~~ + +~~ + +~~~~ + +~~ + +~~~~ + +~~ + +~~~~ + +~~ + +~~~~ + +~~ + +~~ + +~~ + +~~ + +~~ +\end{lyxcode} + +\caption{\label{XML}XML for Map in Figure \ref{Map_In_Advanced_Editor}} +\end{figure} + +=end latex + +Fig. "XML for Map in Figure" shows the XML representation of the +resource map shown in Fig. "Example of a Map in the Advanced Editor", +which is the format in which maps are stored. In the figure, however, +additional graphical map layout information generated by the Advanced +Resource Assembly Tool is not displayed. This graphical information is +optional to re-generate the same graphical layout when the map is +brought up again in the Resource Assembly Tool, and is not needed for +any other system functionality. + +Maps can be generated by tools other than the Resource Assembly +Tool. In particular, an author might have some other representation of +a course sequence, which can be converted into a map using scripts. If +this map then were to be brought up in the Resource Assembly Tool, the +Tool would automatically generate a graphical layout for it. Each +entry of the map (resources, conditions and links) is stored in a +separate tag. + +Resources and conditionsX have to have unique ID +numbers. These numbers are automatically generated by the Resource +Assembly Tool when the entry is first created, or added to the entries +when a map generated outside the Resource Assembly Tool is first +retrieved. They can also be assigned by custom scripts or added in by +hand. + +In the XML example, entry 1 is the start resource of the map. When +this map is accessed, the source (src) URL of this tag will be the +first resource rendered. Entry 2 is the finish resource of this +map. This resource will be the last resource in the sequence of +resources. Entry 6 is a problem resource with the given URL and title, +as well as the priority "mandatory". Entry 19 is a condition, which is +used by the link between entries 6, the problem, and 9, a +sequence. I + +=cut + use strict; use Apache::Constants qw(:common); use Apache::lonnet; use Apache::lonratsrv; use Apache::lonsequence; +use Apache::loncommon; +use Apache::lonlocal; +use File::Copy; -my @order; -my @resources; +use vars qw(@order @resources @resparms @zombies %revzombies); # Mapread read maps into global arrays @links and @resources, determines status @@ -53,8 +187,15 @@ sub mapread { undef @links; undef @resources; undef @order; + undef @resparms; + undef @zombies; + undef %revzombies; + @resources=(''); @order=(); + @resparms=(); + @zombies=(); + %revzombies=(); my ($outtext,$errtext)=&Apache::lonratsrv::loadmap($fn,''); if ($errtext) { return ($errtext,2); } @@ -63,11 +204,24 @@ sub mapread { foreach (split(/\<\&\>/,$outtext)) { my ($command,$number,$content)=split(/\<\:\>/,$_); if ($command eq 'objcont') { - $resources[$number]=$content; + my ($title,$src,$ext,$type)=split(/\:/,$content); + if ($type ne 'zombie') { + $resources[$number]=$content; + } else { + $zombies[$number]=$content; + $revzombies{$src}=$number; + } } if ($command eq 'objlinks') { $links[$number]=$content; } + if ($command eq 'objparms') { + if ($resparms[$number]) { + $resparms[$number].='&&&'.$content; + } else { + $resparms[$number]=$content; + } + } } # ------------------------------------------------------- Is this a linear map? my @starters=(); @@ -80,13 +234,13 @@ sub mapread { my ($start,$end,$cond)=split(/\:/,$_); if ((defined($starters[$start])) || (defined($endings[$end]))) { return - ('Map has branchings. Use advanced editor.',1); + (&mt('Map has branchings. Use advanced editor.'),1); } $starters[$start]=1; $endings[$end]=1; if ($cond) { return - ('Map has conditions. Use advanced editor.',1); + (&mt('Map has conditions. Use advanced editor.'),1); } } @@ -95,11 +249,16 @@ sub mapread { if (defined($resources[$i])) { unless (($starters[$i]) || ($endings[$i])) { return - ('Map has unconnected resources. Use advanced editor.',1); + (&mt('Map has unconnected resources. Use advanced editor.'),1); } } } - +# ---------------------------------------------- Did we just read an empty map? + if ($#resources<1) { + undef $resources[0]; + $resources[1]=':::start'; + $resources[2]=':::finish'; + } # -------------------------------------------------- This is a linear map, sort my $startidx=0; @@ -148,7 +307,10 @@ sub attemptread { foreach (split(/\<\&\>/,$outtext)) { my ($command,$number,$content)=split(/\<\:\>/,$_); if ($command eq 'objcont') { - $theseres[$number]=$content; + my ($title,$src,$ext,$type)=split(/\:/,$content); + unless ($type eq 'zombie') { + $theseres[$number]=$content; + } } if ($command eq 'objlinks') { $links[$number]=$content; @@ -245,6 +407,10 @@ sub attemptread { # --------------------------------------------------------- Build up RAT screen sub ratedt { my ($r,$url)=@_; + my $frameset = ''; + if ($env{'environment.remote'} eq 'off') { + $frameset = ''; + } $r->print(< @@ -253,9 +419,9 @@ sub ratedt { var flag=0; - +$frameset - + @@ -269,12 +435,15 @@ sub buttons { my $adv=shift; my $output='
'; if ($adv==1) { - $output.=''; + $output.=''. + &Apache::loncommon::help_open_topic('Sequence_Advanced_Editor_Creation');; } else { unless ($adv==2) { - $output.=''; + $output.=''. + &Apache::loncommon::help_open_topic('Sequence_Simple_Editor_Creation'); } - $output.=''; + $output.=''. + &Apache::loncommon::help_open_topic('Sequence_Advanced_Editor_Creation'); } return $output.'

'; } @@ -296,6 +465,7 @@ sub pastetarget { my $ext='false'; if ($url=~/^http\:\/\//) { $ext='true'; } $url=~s/\:/\:/g; + $name=~s/\:/\:/g; $resources[$idx]=$name.':'.$url.':'.$ext.':normal:res'; } } @@ -308,21 +478,56 @@ sub pastetarget { # modifies @resources sub startfinish { +# Remove all start and finish foreach (@order) { my ($name,$url,$ext)=split(/\:/,$resources[$_]); if ($url=~/http\&colon\:\/\//) { $ext='true'; } $resources[$_]=$name.':'.$url.':'.$ext.':normal:res'; } +# Garbage collection + my $stillchange=1; + while (($#order>1) && ($stillchange)) { + $stillchange=0; + for (my $i=0;$i<=$#order;$i++) { + my ($name,$url,$ext)=split(/\:/,$resources[$order[$i]]); + unless ($url) { +# Take out empty resource + for (my $j=$i+1;$j<=$#order;$j++) { + $order[$j-1]=$order[$j]; + } + $#order--; + $stillchange=1; + last; + } + } + } +# Put in a start resource my ($name,$url,$ext)=split(/\:/,$resources[$order[0]]); $resources[$order[0]]=$name.':'.$url.':'.$ext.':start:res'; - my ($name,$url,$ext)=split(/\:/,$resources[$order[$#order]]); +# Make sure this has at least start and finish + if ($#order==0) { + $resources[$#resources+1]='::false'; + $order[1]=$#resources; + } +# Make the last one a finish resource + ($name,$url,$ext)=split(/\:/,$resources[$order[$#order]]); $resources[$order[$#order]]=$name.':'.$url.':'.$ext.':finish:res'; } # ------------------------------------------------------------------- Store map sub storemap { - my $fn=shift; + my $realfn=shift; + my $fn=$realfn; +# unless this is forced to work from the original file, use a temporary file +# instead + unless (shift) { + $fn=$realfn.'.tmp'; + unless (-e $fn) { + copy($realfn,$fn); + } + } +# store data either into tmp or real file &startfinish(); my $output='graphdef<:>no'; my $k=1; @@ -330,6 +535,13 @@ sub storemap { if (defined($resources[$order[$i]])) { $output.='<&>objcont<:>'.$order[$i].'<:>'.$resources[$order[$i]]; } + if (defined($resparms[$order[$i]])) { + foreach (split('&&&',$resparms[$order[$i]])) { + if ($_) { + $output.='<&>objparms<:>'.$order[$i].'<:>'.$_; + } + } + } if (defined($order[$i+1])) { if (defined($resources[$order[$i+1]])) { $output.='<&>objlinks<:>'.$k.'<:>'. @@ -339,47 +551,214 @@ sub storemap { } } $output=~s/http\&colon\;\/\///g; - $ENV{'form.output'}=$output; + $env{'form.output'}=$output; return &Apache::lonratsrv::loadmap($fn,&Apache::lonratsrv::savemap($fn,'')); } +# ------------------------------------------ Store and get parameters in global + +sub storeparameter { + my ($to,$name,$value,$ptype)=@_; + my $newentry=''; + my $nametype=''; + foreach (split('&&&',$resparms[$to])) { + my ($thistype,$thisname,$thisvalue)=split('___',$_); + if ($thisname) { + unless ($thisname eq $name) { + $newentry.=$_.'&&&'; + } else { + $nametype=$thistype; + } + } + } + unless ($ptype) { $ptype=$nametype; } + unless ($ptype) { $ptype='string'; } + $newentry.=$ptype.'___'.$name.'___'.$value; + $resparms[$to]=$newentry; +} + +sub delparameter { + my ($to,$name)=@_; + my $newentry=''; + my $nametype=''; + foreach (split('&&&',$resparms[$to])) { + my ($thistype,$thisname,$thisvalue)=split('___',$_); + if ($thisname) { + unless ($thisname eq $name) { + $newentry.=$_.'&&&'; + } + } + } + $resparms[$to]=$newentry; +} + +sub getparameter { + my ($to,$name)=@_; + my $value=undef; + my $ptype=undef; + foreach (split('&&&',$resparms[$to])) { + my ($thistype,$thisname,$thisvalue)=split('___',$_); + if ($thisname eq $name) { + $value=$thisvalue; + $ptype=$thistype; + } + } + return ($value,$ptype); +} + +# ----------------------------------------------------------------- Edit script +sub editscript { + my $mode=shift; + my $resurl=&Apache::loncommon::lastresurl(); + return(<
'; } else { - @importselect=($ENV{'form.importsel'}); + $targetmsg=''.&mt('An error occured while saving.').'
'; } } - if (defined($ENV{'form.target'})) { - if (ref($ENV{'form.target'})) { - @targetselect=sort(@{$ENV{'form.target'}}); - } else { - @targetselect=($ENV{'form.target'}); - } + if ($env{'form.revert'}) { + $targetmsg=''.&mt('Reverted.').'
'; + unlink($tmpfn); + my ($errtext,$fatal)= + &mapread(&Apache::lonnet::filelocation('',$url),''); + } + if (-e $tmpfn) { + $targetmsg= + ''.&mt('You are working with an unsaved version of your map.').'
'; + my ($errtext,$fatal)=&mapread($tmpfn,''); } +# ---------------------------------------------------------- Process form input + + my @importselect=&Apache::loncommon::get_env_multiple('form.importsel'); + my @targetselect=&Apache::loncommon::get_env_multiple('form.target'); # ============================================================ Process commands - my $targetdetail=$ENV{'form.targetdetail'}; - my $importdetail=$ENV{'form.curimpdetail'}; + my $targetdetail=$env{'form.targetdetail'}; + my $importdetail=$env{'form.curimpdetail'}; # ---------------------------------------------------- Importing from groupsort - if (($ENV{'form.importdetail'}) && (!$ENV{'form.impfortarget'})) { + if (($env{'form.importdetail'}) && (!$env{'form.impfortarget'})) { $importdetail=''; - my @curimport=split(/\&/,$ENV{'form.curimpdetail'}); + my @curimport=split(/\&/,$env{'form.curimpdetail'}); my $lastsel; @@ -396,7 +775,7 @@ sub smpedt { } } - $importdetail.='&'.$ENV{'form.importdetail'}; + $importdetail.='&'.$env{'form.importdetail'}; for (my $i=$lastsel+1;$i<=$#curimport;$i++) { my ($name,$url)=split(/\=/,$curimport[$i]); @@ -408,12 +787,12 @@ sub smpedt { $importdetail=~s/^\&//; # ------------------------------------------------------------------- Clear all - } elsif ($ENV{'form.clear'}) { + } elsif ($env{'form.clear'}) { $importdetail=''; # ------------------------------------------------------------ Discard selected - } elsif ($ENV{'form.discard'}) { + } elsif ($env{'form.discard'}) { $importdetail=''; - my @curimport=split(/\&/,$ENV{'form.curimpdetail'}); + my @curimport=split(/\&/,$env{'form.curimpdetail'}); foreach (@importselect) { $curimport[$_]=''; } @@ -424,9 +803,9 @@ sub smpedt { } } # --------------------------------------------------------- Loading another map - } elsif ($ENV{'form.loadmap'}) { + } elsif ($env{'form.loadmap'}) { $importdetail=''; - my @curimport=split(/\&/,$ENV{'form.curimpdetail'}); + my @curimport=split(/\&/,$env{'form.curimpdetail'}); my $lastsel; @@ -444,7 +823,7 @@ sub smpedt { } foreach ( - &Apache::lonsequence::attemptread(&Apache::lonnet::filelocation('',$ENV{'form.importmap'}))) { + &Apache::lonsequence::attemptread(&Apache::lonnet::filelocation('',$env{'form.importmap'}))) { my ($name,$url)=split(/\:/,$_); if ($url) { $importdetail.='&'.&Apache::lonnet::escape($name).'='. @@ -462,19 +841,19 @@ sub smpedt { $importdetail=~s/^\&//; # ------------------------------------------------ Groupimport/search to target - } elsif ($ENV{'form.importdetail'}) { + } elsif ($env{'form.importdetail'}) { my $lastsel; if (defined($targetselect[-1])) { $lastsel=$targetselect[-1]; } else { $lastsel=$#order+1; } - &pastetarget($lastsel,split(/\&/,$ENV{'form.importdetail'})); + &pastetarget($lastsel,split(/\&/,$env{'form.importdetail'})); &storemap(&Apache::lonnet::filelocation('',$url)); # ------------------------------------------------------------------------- Cut - } elsif (($ENV{'form.cut'}) || ($ENV{'form.copy'})) { + } elsif (($env{'form.cut'}) || ($env{'form.copy'})) { $importdetail=''; - my @curimport=split(/\&/,$ENV{'form.curimpdetail'}); + my @curimport=split(/\&/,$env{'form.curimpdetail'}); my $lastsel; @@ -508,7 +887,7 @@ sub smpedt { $importdetail=~s/\&+/\&/g; $importdetail=~s/^\&//; - if ($ENV{'form.cut'}) { + if ($env{'form.cut'}) { my @neworder=(); for (my $i=0;$i<=$#order;$i++) { my $include=1; @@ -522,7 +901,7 @@ sub smpedt { } # ----------------------------------------------------------------------- Paste - } elsif ($ENV{'form.paste'}) { + } elsif ($env{'form.paste'}) { my $lastsel; if (defined($targetselect[-1])) { $lastsel=$targetselect[-1]; @@ -530,19 +909,48 @@ sub smpedt { $lastsel=$#order+1; } my @newsequence; - my @curimport=split(/\&/,$ENV{'form.curimpdetail'}); + my @curimport=split(/\&/,$env{'form.curimpdetail'}); foreach (@importselect) { $newsequence[$#newsequence+1]=$curimport[$_]; } &pastetarget($lastsel,@newsequence); &storemap(&Apache::lonnet::filelocation('',$url)); -# ------------------------------------------------ +# -------------------------------------------------------------------- Move up + } elsif ($env{'form.moveup'}) { + foreach (sort @targetselect) { + if ($_-1>0) { + my $movethis=$order[$_-1]; + $order[$_-1]=$order[$_-2]; + $order[$_-2]=$movethis; + } + } + &storemap(&Apache::lonnet::filelocation('',$url)); +# ------------------------------------------------------------------ Move down + } elsif ($env{'form.movedown'}) { + foreach (reverse sort @targetselect) { + if ($_-1<$#order) { + my $movethis=$order[$_-1]; + $order[$_-1]=$order[$_]; + $order[$_]=$movethis; + } + } + &storemap(&Apache::lonnet::filelocation('',$url)); +# --------------------------------------------------------------------- Rename + } elsif ($env{'form.renameres'}) { + my $residx=$Apache::lonratedt::order[$env{'form.renameidx'}-1]; + my ($name,@resrest)=split(/\:/,$Apache::lonratedt::resources[$residx]); + $name=$env{'form.renametitle'}; + $name=~s/\:/\&colon\;/g; + $Apache::lonratedt::resources[$residx]=$name.':'.join(':',@resrest); + &storemap(&Apache::lonnet::filelocation('',$url)); } # ------------------------------------------------------------ Assemble windows my $idx=-1; + $importdetail='&'.$importdetail; + $importdetail=~s/^\&+/\&/; my $importwindow= - ''. + ''. join("\n",map { $idx++; if ($_) { @@ -555,8 +963,9 @@ sub smpedt { } split(/\&/,$importdetail)); $idx=0; + $targetdetail=''; my $targetwindow= - ''. + ''. join("\n",map { my ($name,$url)=split(/\:/,$resources[$_]); unless ($name) { $name=(split(/\//,$url))[-1]; } @@ -564,116 +973,41 @@ sub smpedt { $targetdetail.='&'.&Apache::lonnet::escape($name).'='. &Apache::lonnet::escape($url); $idx++; + $name=~s/\:/\:/g; ''; } @order); # ----------------------------------------------------- Start simple RAT screen + my $editscript=&editscript('simple'); + my $bodytag=&Apache::loncommon::bodytag(undef,undef,undef, + ($env{'environment.remote'} ne 'off')). + &Apache::loncommon::help_open_menu('','Sequence_Simple_Editor_Creation','Sequence_Simple_Editor_Creation','',6,'RAT'); + my %lt=&Apache::lonlocal::texthash( + 'sa' => 'Save', + 'nt' => 'New Title', + 'se' => 'Search', + 'im' => 'Import', + 'vi' => 'View', + 'lm' => 'Load Map', + 'ds' => 'Discard Selected', + 'ca' => 'Clear All', + 'ta' => 'Temporary Assembly Workspace', + 'rv' => 'Revert to Last Saved', + 'sa' => 'Save', + 'mu' => 'Move Up', + 'md' => 'Move Down', + 're' => 'Rename', + 'as' => 'after selected', + 'cs' => 'Cut selected', + 'ps' => 'Copy selected', + 'pas' => 'Paste after selected', + ); $r->print(< - +$bodytag $buttons $errtext -

$url

+ + + - + - +
Import
$lt{'ta'}  Target
File: $url
- - -after selected + + +$lt{'as'}

- - - +value="Select Map">
+ + +
  +"javascript:impfortarget.value=1;groupsearch()" value="$lt{'se'}"> -after selected -
+"javascript:impfortarget.value=1;groupimport();" value="$lt{'im'}"> +$lt{'as'} +
+ + + +
$targetmsg + + +
-Cut selected
+$lt{'cs'}


-Copy selected
+$lt{'ps'}


-Paste after selected
+$lt{'pas'}
'. + ''. + ''. + ''. + ''. + ''. + ''); + my @backgroundColors = ("#FFFFFF", "#F6F6F6"); foreach (&attemptread(&Apache::lonnet::filelocation('',$url))) { if (defined($_)) { $idx++; - my ($title,$url)=split(/\:/,$_); + my ($title,$url,$cond)=split(/\:/,$_); + if ($cond eq 'cond') { next; } $title=~s/\&colon\;/\:/g; $url=~s/\&colon\;/\:/g; unless ($title) { $title=(split(/\//,$url))[-1] }; - unless ($title) { $title='Empty'; } + unless ($title) { $title=''.&mt('Empty').''; } + my $resurl = &Apache::lonratsrv::qtescape($url); + my $resfilepath = $Apache::lonnet::perlvar{'lonDocRoot'}.$resurl; + my $filename; + if ($resurl =~ m#/([^/]+)$#) { + $filename = $1; + } + my $cstrurl = $resurl; + $cstrurl =~ s#^/res/[^/]+/([^/]+)/#/priv/$1/#; + my $bgcol = $idx%2; + $r->print(''."\n"); } } + $r->print('
'.&mt('Type').''.&mt('Title in map').''.&mt('Filename of resource').''.&mt('Link to published resource').''.&mt('Link to resource in Construction Space').'
'. + ''.&Apache::lonratsrv::qtescape($title). + ''.$filename.''); if ($url) { - $r->print(''); + if (-e $resfilepath) { + $r->print(''.&mt('Resource space').''); + } else { + $r->print(&mt('unpublished')); + } } - $r->print(&Apache::lonratsrv::qtescape($title)); - if ($url) { $r->print(''); } - $r->print('
'); + $r->print('
'); + if ($url) { + $r->print(''. + &mt('Construction space').''); + } + $r->print('
'); $r->print(''); } @@ -800,11 +1200,17 @@ sub viewmap { sub handler { my $r=shift; - $r->content_type('text/html'); + &Apache::loncommon::content_type($r,'text/html'); $r->send_http_header; return OK if $r->header_only; - + my $target = $env{'form.grade_target'}; + if ($target eq 'meta') { + &Apache::loncommon::content_type($r,'text/html'); + $r->send_http_header; + return OK; + } + my $url=$r->uri; my $fn=&Apache::lonnet::filelocation('',$url); @@ -817,8 +1223,8 @@ sub handler { # ------------------------------------------- Determine which tools can be used my $adv=0; - unless ($ENV{'form.forcesmp'}) { - if ($ENV{'form.forceadv'}) { + unless ($env{'form.forcesmp'}) { + if ($env{'form.forceadv'}) { $adv=1; } elsif (my $fh=Apache::File->new($fn)) { my $allmap=join('',<$fh>); @@ -836,9 +1242,9 @@ sub handler { # ----------------------------------- adv==1 now means "graphical MUST be used" - if ($ENV{'form.forceadv'}) { + if ($env{'form.forceadv'}) { &ratedt($r,$url); - } elsif ($ENV{'form.forcesmp'}) { + } elsif ($env{'form.forcesmp'}) { &smpedt($r,$url,$errtext); } else { &viewmap($r,$url,$adv,$errtext);