--- loncom/interface/lonparmset.pm	2000/11/20 22:56:01	1.1
+++ loncom/interface/lonparmset.pm	2000/11/21 12:22:29	1.2
@@ -9,7 +9,7 @@
 #
 # 10/11,10/12,10/16 Gerd Kortemeyer)
 #
-# 11/20 Gerd Kortemeyer
+# 11/20,11/21 Gerd Kortemeyer
 
 package Apache::lonparmset;
 
@@ -18,6 +18,72 @@ use Apache::lonnet;
 use Apache::Constants qw(:common :http REDIRECT);
 use GDBM_File;
 
+my %courseopt;
+my %useropt;
+my %bighash;
+my %parmhash;
+
+my @srcp;
+my @typep;
+my @resp;
+my @mapp;
+my @symbp;
+
+my $uname;
+my $udom;
+my $uhome;
+
+my $csec;
+
+# -------------------------------------------- Figure out a cascading parameter
+
+sub parmval {
+    my ($what,$idx)=@_;
+# ----------------------------------------------------- Cascading lookup scheme
+       my $symbparm=$symbp[$idx].'.'.$what;
+       my $reslevel=
+	    $ENV{'request.course.id'}.'.'.$symbparm;
+       my $seclevel=
+            $ENV{'request.course.id'}.'.'.
+		$ENV{'request.course.sec'}.'.'.$what;
+       my $courselevel=
+            $ENV{'request.course.id'}.'.'.$what;
+
+# ----------------------------------------------------------- first, check user
+
+       if ($useropt{$reslevel}) { return $useropt{$reslevel}; }
+       if ($useropt{$seclevel}) { return $useropt{$seclevel}; }
+       if ($useropt{$courselevel}) { return $useropt{$courselevel}; }
+
+# -------------------------------------------------------- second, check course
+
+       if ($courseopt{$reslevel}) { return $courseopt{$reslevel}; }
+       if ($courseopt{$seclevel}) { return $courseopt{$seclevel}; }  
+       if ($courseopt{$courselevel}) { return $courseopt{$courselevel}; }
+
+# ------------------------------------------------------ third, check map parms
+
+       my $thisparm=$parmhash{$symbparm};
+       if ($thisparm) { return $thisparm; }
+
+     
+# --------------------------------------------- last, look in resource metadata
+
+        my $filename='/home/httpd/res/'.$srcp[$idx].'.meta';
+        if (-e $filename) {
+            my @content;
+            {
+             my $fh=Apache::File->new($filename);
+             @content=<$fh>;
+            }
+            if (join('',@content)=~
+                 /\<$what[^\>]*\>([^\<]*)\<\/$what\>/) {
+	        return $1;
+ 	    }
+        }
+    return '';
+}
+
 # ================================================================ Main Handler
 
 sub handler {
@@ -33,16 +99,82 @@ sub handler {
 
    if (($ENV{'request.course.fn'}) && 
        (&Apache::lonnet::allowed('opa',$ENV{'request.course.id'}))) {
+# -------------------------------------------------------- Variable declaration
+
+      %courseopt=();
+      %useropt=();
+      %bighash=();
+
+      @srcp=();
+      @typep=();
+      @resp=();
+      @mapp=();
+      @symbp=();
+
+      $uname=$ENV{'form.uname'};
+      $udom=$ENV{'form.udom'};
+      unless ($udom) { $uname=''; }
+      $uhome='';
+      if ($uname) {
+	  $uhome=&Apache::lonnet::homeserver($uname,$udom);
+      }
+
+      $csec=$ENV{'form.csec'};
+
+# ------------------------------------------------------------------- Tie hashs
+      if ((tie(%bighash,'GDBM_File',$ENV{'request.course.fn'}.'.db',
+                       &GDBM_READER,0640)) &&
+          (tie(%parmhash,'GDBM_File',
+           $ENV{'request.course.fn'}.'_parms.db',&GDBM_READER,0640))) {
+
+# -------------------------------------------------------------- Get coursedata
+        my $reply=&Apache::lonnet::reply('dump:'.
+              $ENV{'course.'.$ENV{'request.course.id'}.'.domain'}.':'.
+              $ENV{'course.'.$ENV{'request.course.id'}.'.num'}.':resourcedata',
+              $ENV{'course.'.$ENV{'request.course.id'}.'.home'});
+        if ($reply!~/^error\:/) {
+           map {
+             my ($name,$value)=split(/\=/,$_);
+             $courseopt{unescape($name)}=unescape($value);  
+           } split(/\&/,$reply);
+        }
+# --------------------------------------------------- Get userdata (if present)
+        if ($uname) {
+           my $reply=
+       &Apache::lonnet::reply('dump:'.$udom.':'.$uname.':resourcedata',$uhome);
+           if ($reply!~/^error\:/) {
+              map {
+                my ($name,$value)=split(/\=/,$_);
+                $useropt{unescape($name)}=unescape($value);  
+              } split(/\&/,$reply);
+           }
+        }
+# --------------------------------------------------------- Get all assessments
+        map {
+	    if ($_=~/^src\_(\d+)\.(\d+)$/) {
+	       my $mapid=$1;
+               my $resid=$2;
+               if ($bighash{$_}=~/\.(problem|exam|quiz|assess|survey|form)$/) {
+                  $typep[$#typep+1]=$1;
+                  $mapp[$#mapp+1]=$mapid;
+                  $resp[$#resp+1]=$resid;
+                  $srcp[$#srcp+1]=&Apache::lonnet::declutter($bighash{$_});
+                  $symbp[$#symbp+1]=
+		    &Apache::lonnet::declutter($bighash{'map_id_'.$mapid}).
+			'___'.$resid.'___'.$srcp[$#srcp];
+	       }
+            }
+        } keys %bighash;
+# ------------------------------------------------------------------- Sort this
 
-      my %bighash;
-      if (tie(%bighash,'GDBM_File',$ENV{'request.course.fn'}.'.db',
-                       &GDBM_READER,0640)) {
+# ------------------------------------------------------------------ Start page
          $r->content_type('text/html');
          $r->send_http_header;
 	 $r->print('<html><body bgcolor="#FFFFFF">');
 
          $r->print('</body></html>');
          untie(%bighash);
+	 untie(%parmhash);
       }
    } else {
 # ----------------------------- Not in a course, or not allowed to modify parms