--- loncom/interface/lonparmset.pm	2001/07/06 14:55:05	1.31
+++ loncom/interface/lonparmset.pm	2001/12/27 17:00:30	1.42
@@ -1,24 +1,56 @@
 # The LearningOnline Network with CAPA
 # Handler to set parameters for assessments
 #
+# $Id: lonparmset.pm,v 1.42 2001/12/27 17:00:30 www Exp $
+#
+# Copyright Michigan State University Board of Trustees
+#
+# This file is part of the LearningOnline Network with CAPA (LON-CAPA).
+#
+# LON-CAPA is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# LON-CAPA is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with LON-CAPA; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+#
+# /home/httpd/html/adm/gpl.txt
+#
+# http://www.lon-capa.org/
+#
 # (Handler to resolve ambiguous file locations
 #
 # (TeX Content Handler
 #
+# YEAR=2000
 # 05/29/00,05/30,10/11 Gerd Kortemeyer)
 #
 # 10/11,10/12,10/16 Gerd Kortemeyer)
 #
 # 11/20,11/21,11/22,11/23,11/24,11/25,11/27,11/28,
 # 12/08,12/12,
+# YEAR=2001
 # 16/01/01,02/08,03/20,03/23,03/24,03/26,05/09,
-# 07/05,07/06 Gerd Kortemeyer
+# 07/05,07/06,08/08,08/09,09/01,09/21 Gerd Kortemeyer
+# 12/17 Scott Harrison
+# 12/19 Guy Albertelli
+# 12/26,12/27 Gerd Kortemeyer
+#
+###
 
 package Apache::lonparmset;
 
 use strict;
 use Apache::lonnet;
 use Apache::Constants qw(:common :http REDIRECT);
+use Apache::loncommon;
 use GDBM_File;
 
 
@@ -186,6 +218,10 @@ sub assessparms {
           $pssymb=&Apache::lonnet::symbread($url);
           $pscat='all';
           $pschp='';
+      } elsif ($ENV{'form.symb'}) {
+	  $pssymb=$ENV{'form.symb'};
+	  $pscat='all';
+	  $pschp='';
       } else {
           $ENV{'form.url'}='';
       }
@@ -223,7 +259,7 @@ sub assessparms {
               my %name=&Apache::lonnet::userenvironment($udom,$uname,
 		('firstname','middlename','lastname','generation','id'));
               $message="\n<p>\nFull Name: ".
-                          $name{'firstname'}.' '.$name{'middlename'}
+                          $name{'firstname'}.' '.$name{'middlename'}.' '
 	                 .$name{'lastname'}.' '.$name{'generation'}.
                        "<br>\nID: ".$name{'id'}.'<p>';
          }
@@ -245,7 +281,7 @@ sub assessparms {
 	undef %allkeys;
         undef %allmaps;
         undef %defp;
-        map {
+        foreach (keys %bighash) {
 	    if ($_=~/^src\_(\d+)\.(\d+)$/) {
 	       my $mapid=$1;
                my $resid=$2;
@@ -255,7 +291,8 @@ sub assessparms {
 		   $ids[$#ids+1]=$id;
                    $typep{$id}=$1;
                    $keyp{$id}='';
-                   map {
+                   foreach (split(/\,/,
+                            &Apache::lonnet::metadata($srcf,'keys'))) {
                        if ($_=~/^parameter\_(.*)/) {
 			  my $key=$_;
                           my $allkey=$1;
@@ -277,8 +314,7 @@ sub assessparms {
                               $keyp{$id}=$key;
 		          }
 		       }
-                   } split(/\,/,
-                      &Apache::lonnet::metadata($srcf,'keys'));
+                   }
                    $mapp{$id}=
 		       &Apache::lonnet::declutter($bighash{'map_id_'.$mapid});
                    $allmaps{$mapid}=$mapp{$id};
@@ -287,11 +323,11 @@ sub assessparms {
 			    &Apache::lonnet::declutter($srcf);
 	       }
             }
-        } keys %bighash;
+        }
 # ---------------------------------------------------------- Anything to store?
         if ($ENV{'form.pres_marker'}) {
        my ($sresid,$spnam,$snum)=split(/\&/,$ENV{'form.pres_marker'});
-       $spnam=~s/\_/\./;
+       $spnam=~s/\_([^\_]+)$/\.$1/;
 # ---------------------------------------------------------- Construct prefixes
 
        my $symbparm=$symbp{$sresid}.'.'.$spnam;
@@ -379,22 +415,22 @@ sub assessparms {
               $ENV{'course.'.$ENV{'request.course.id'}.'.num'}.':resourcedata',
               $ENV{'course.'.$ENV{'request.course.id'}.'.home'});
         if ($reply!~/^error\:/) {
-           map {
+           foreach (split(/\&/,$reply)) {
              my ($name,$value)=split(/\=/,$_);
              $courseopt{&Apache::lonnet::unescape($name)}=
                         &Apache::lonnet::unescape($value);  
-           } split(/\&/,$reply);
+           }
         }
 # --------------------------------------------------- Get userdata (if present)
         if ($uname) {
            my $reply=
        &Apache::lonnet::reply('dump:'.$udom.':'.$uname.':resourcedata',$uhome);
            if ($reply!~/^error\:/) {
-              map {
+              foreach (split(/\&/,$reply)) {
                 my ($name,$value)=split(/\=/,$_);
                 $useropt{&Apache::lonnet::unescape($name)}=
                          &Apache::lonnet::unescape($value);
-              } split(/\&/,$reply);
+              }
            }
         }
 
@@ -487,37 +523,37 @@ ENDHEAD
 	$r->print('<input type="hidden" value="'.$ENV{'form.url'}.
 	      '" name="url"><input type="hidden" name="command" value="set">');
     }
-    map {
+    foreach ('tolerance','date_default','date_start','date_end',
+             'date_interval','int','float','string') {
       $r->print('<input type="hidden" value="'.
           $ENV{'form.recent_'.$_}.'" name="recent_'.$_.'">');
-    } ('tolerance','date_default','date_start','date_end','date_interval',
-       'int','float','string');
+    }
 
         $r->print('<h2>'.$message.'</h2><table><tr><td>Sort list by</td><td>');
 	$r->print('<select name="fcat">');
         $r->print('<option value="">Enclosing Map</option>');
-        map {
+        foreach (reverse sort keys %allkeys) {
 	    $r->print('<option value="'.$_.'"');
             if ($fcat eq $_) { $r->print(' selected'); }
             $r->print('>'.$allkeys{$_}.'</option>');
-        } keys %allkeys;
+        }
        $r->print(
     '</select></tr><tr><td>Select Enclosing Map</td><td><select name=pschp>');
         $r->print('<option value=all>All Maps</option>');
-        map {
+        foreach (keys %allmaps) {
 	    $r->print('<option value="'.$_.'"');
             if (($pssymb=~/^$allmaps{$_}/) || 
                 ($pschp eq $_)) { $r->print(' selected'); }
             $r->print('>'.$allmaps{$_}.'</option>');
-        } keys %allmaps;
+        }
         $r->print(
  '</select></td></tr><tr><td>Select Parameter</td><td><select name=pscat>');
         $r->print('<option value=all>All Parameters</option>');
-        map {
+        foreach (reverse sort keys %allkeys) {
 	    $r->print('<option value="'.$_.'"');
             if ($pscat eq $_) { $r->print(' selected'); }
             $r->print('>'.$allkeys{$_}.'</option>');
-        } keys %allkeys;
+        }
         $r->print(
 '</select></td></tr></table><br><input name=dis type="submit" value="Display">'
                  );
@@ -526,6 +562,8 @@ ENDHEAD
 	my $catmarker='parameter_'.$pscat;
         $catmarker=~s/\./\_/g;
         my $coursespan=$csec?8:5;
+        my $csuname=$ENV{'user.name'};
+        my $csudom=$ENV{'user.domain'};
 	 $r->print(<<ENDTABLEHEAD);
 <p><table border=2>
 <tr><td colspan=5></td>
@@ -535,7 +573,9 @@ ENDTABLEHEAD
 	$r->print("<th colspan=3 rowspan=2>User $uname at Domain $udom</th>");
     }
     $r->print(<<ENDTABLETWO);
-<th rowspan=3>Parameter in Effect</th></tr><tr><td colspan=5></td>
+<th rowspan=3>Parameter in Effect</th>
+<th rowspan=3>Current Session Value<br>($csuname at $csudom)</th>
+</tr><tr><td colspan=5></td>
 <th colspan=2>Resource Level</th>
 <th colspan=3>in Course</th>
 ENDTABLETWO
@@ -554,10 +594,10 @@ ENDTABLEHEADFOUR
     if ($uname) {
   $r->print('<th>general</th><th>for Enclosing Map</th><th>for Resource</th>');
     }
-	$r->print('</tr><tr>');
+	$r->print('</tr>');
          my $defbgone='';
          my $defbgtwo='';
- 	 map {
+ 	 foreach (@ids) {
            my $rid=$_;
            my ($inmapid)=($rid=~/\.(\d+)$/);
            if (($pschp eq 'all') || ($allmaps{$pschp} eq $mapp{$rid}) ||
@@ -577,13 +617,15 @@ ENDTABLEHEADFOUR
 	    @outpar=();
             my $thistitle='';
             my %name=   ();
+	     undef %name;
             my %part=   ();
 	    my %display=();
 	    my %type=   ();
             my %default=();
             my $uri=&Apache::lonnet::declutter($bighash{'src_'.$rid});
 
-            map {
+            foreach (split(/\,/,$keyp{$rid})) {
+	     if (($_ eq $catmarker) || ($pscat eq 'all')) {
 		$part{$_}=&Apache::lonnet::metadata($uri,$_.'.part');
                 $name{$_}=&Apache::lonnet::metadata($uri,$_.'.name');
                 $display{$_}=&Apache::lonnet::metadata($uri,$_.'.display');
@@ -592,13 +634,13 @@ ENDTABLEHEADFOUR
                 $default{$_}=&Apache::lonnet::metadata($uri,$_);
                 $type{$_}=&Apache::lonnet::metadata($uri,$_.'.type');
                 $thistitle=&Apache::lonnet::metadata($uri,$_.'.title');
-            } split(/\,/,$keyp{$rid});
+	     }
+            }
 
 	    my $totalparms=scalar keys %name;
-	    my $isdef=1;
-	    unless ($totalparms) { $totalparms=1; $isdef=0; }
-	    if ($pscat ne 'all') { $totalparms=1; }
-            $r->print('<td bgcolor='.$defbgone.
+	  if ($totalparms>0) {
+            my $firstrow=1;
+            $r->print('<tr><td bgcolor='.$defbgone.
                 ' rowspan='.$totalparms.'><tt><font size=-1>'.
                 join(' / ',split(/\//,$uri)).
                 '</font></tt><p><b>'.
@@ -612,11 +654,13 @@ ENDTABLEHEADFOUR
             $r->print('<td bgcolor='.$defbgone.
                     ' rowspan='.$totalparms.'><tt><font size=-1>'.
 		      join(' / ',split(/\//,$mapp{$rid})).'</font></tt></td>');
-	  if ($isdef) {
-            map {
-	     if (($_ eq $catmarker) || ($pscat eq 'all')) {
+            foreach (sort keys %name) {
 	       my $result=&parmval($part{$_}.'.'.$name{$_},$rid,$default{$_});
-
+               unless ($firstrow) { 
+                  $r->print('<tr>'); 
+               } else {
+		   $firstrow=0;
+               }
                $r->print("<td bgcolor=".$defbgtwo.
                   ">$part{$_}</td><td bgcolor=".$defbgone.
                   ">$display{$_}</td>");
@@ -674,16 +718,20 @@ ENDTABLEHEADFOUR
                     'parmform.pres','psub').'</td>');
                }
                $r->print(
-        '<td bgcolor=#CCCCFF>'.&valout($outpar[$result],$type{$_}).'</td>');
-               $r->print("</tr>\n<tr>");
+	'<td bgcolor=#CCCCFF>'.&valout($outpar[$result],$type{$_}).'</td>');
+               my $sessionval=&Apache::lonnet::EXT('resource.'.$part{$_}.
+		      '.'.$name{$_},$mapp{$rid}.'___'.$inmapid.'___'.$uri);
+               if (($type{$_}=~/^date/) && ($sessionval))
+                    { $sessionval=localtime($sessionval); }
+               $r->print(
+	'<td bgcolor=#999999><font color=#FFFFFF>'.$sessionval.'&nbsp;'.
+        '</font></td>');
+               $r->print("</tr>");
 	   }
-	   } sort keys %name;
-	} else {
- 	    $r->print("</tr>\n<tr>");
-        }
+	}
 # -------------------------------------------------- End entry for one resource
 	 }
-	 } @ids;
+	 }
          $r->print('</table>');
       }
 	$r->print('</form></body></html>');
@@ -696,7 +744,7 @@ sub crsenv {
     my $r=shift;
     my $setoutput='';
 # -------------------------------------------------- Go through list of changes
-    map {
+    foreach (keys %ENV) {
 	if ($_=~/^form\.(.+)\_setparmval$/) {
             my $name=$1;
             my $value=$ENV{'form.'.$name.'_value'};
@@ -734,7 +782,7 @@ sub crsenv {
                         '<br>';
 	    }
         }
-    } keys %ENV;
+    }
 # -------------------------------------------------------- Get parameters again
     my $rep=&Apache::lonnet::reply
                  ('dump:'.$ENV{'course.'.$ENV{'request.course.id'}.'.domain'}.
@@ -754,24 +802,29 @@ sub crsenv {
   'comment.email'  => '<b>Feedback Addresses for Comments</b><br>'.
                       '(<tt>user:domain,user:domain,...</tt>)',
   'policy.email'   => '<b>Feedback Addresses for Course Policy</b><br>'.
-                      '(<tt>user:domain,user:domain,...</tt>)'
+                      '(<tt>user:domain,user:domain,...</tt>)',
+  'hideemptyrows'  => '<b>Hide Empty Rows in Spreadsheets</b><br>'.
+                      '("<tt>yes</tt>" for default hiding)',
+ 'pch.roles.denied'=> '<b>Disallow Resource Discussion for Students</b><br>'.
+ '("<tt>st</tt>": student, "<tt>ta</tt>": TA, "<tt>in</tt>": instructor;<br>'.
+ '<tt>role,role,...</tt>)'
  ); 
 
-       map {
+       foreach (split(/\&/,$rep)) {
            my ($name,$value)=split(/\=/,$_);
            $name=&Apache::lonnet::unescape($name);
            $values{$name}=&Apache::lonnet::unescape($value);
            unless ($descriptions{$name}) {
 	       $descriptions{$name}=$name;
            }
-       } split(/\&/,$rep);
-       map {
+       }
+       foreach (sort keys %descriptions) {
            $output.='<tr><td>'.$descriptions{$_}.'</td><td><input name="'.
                        $_.'_value" size=40 value="'.
                       $values{$_}.
                      '"></td><td><input type=checkbox name="'.$_.
                      '_setparmval"></td></tr>';
-       } keys %descriptions;
+       }
        $output.='<tr><td><i>Create New Environment Variable</i><br>'.
                 '<input type="text" size=40 name="newp_name"></td><td>'.
                 '<input type="text" size=40 name="newp_value"></td><td>'.
@@ -810,7 +863,7 @@ sub handler {
       $r->send_http_header;
       return OK;
    }
-
+   &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'});
 # ----------------------------------------------------- Needs to be in a course
 
    if (($ENV{'request.course.id'}) && 
@@ -836,5 +889,73 @@ sub handler {
 __END__
 
 
+=head1 NAME
+
+Apache::lonparmset - Handler to set parameters for assessments
+
+=head1 SYNOPSIS
+
+Invoked by /etc/httpd/conf/srm.conf:
+
+ <Location /adm/parmset>
+ PerlAccessHandler       Apache::lonacc
+ SetHandler perl-script
+ PerlHandler Apache::lonparmset
+ ErrorDocument     403 /adm/login
+ ErrorDocument     406 /adm/roles
+ ErrorDocument	  500 /adm/errorhandler
+ </Location>
+
+=head1 INTRODUCTION
+
+This module sets assessment parameters.
+
+This is part of the LearningOnline Network with CAPA project
+described at http://www.lon-capa.org.
+
+=head1 HANDLER SUBROUTINE
+
+This routine is called by Apache and mod_perl.
+
+=over 4
+
+=item *
+
+need to be in course
+
+=item *
+
+bring up assessment screen or course environment
+
+=back
+
+=head1 OTHER SUBROUTINES
+
+=over 4
+
+=item *
+
+parmval() : figure out a cascading parameter
+
+=item *
+
+valout() : output for value
+
+=item *
+
+plink() : produces link anchor
+
+=item *
+
+assessparms() : show assess data and parameters
+
+=item *
+
+crsenv() : for the course environment
+
+=back
+
+=cut
+