--- loncom/interface/coursecatalog.pm	2013/01/23 15:23:19	1.72
+++ loncom/interface/coursecatalog.pm	2014/04/28 01:48:04	1.82
@@ -1,7 +1,7 @@
 # The LearningOnline Network with CAPA
 # Handler for displaying the course catalog interface
 #
-# $Id: coursecatalog.pm,v 1.72 2013/01/23 15:23:19 raeburn Exp $
+# $Id: coursecatalog.pm,v 1.82 2014/04/28 01:48:04 raeburn Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -66,8 +66,11 @@ sub handler {
     }
     my $formname = 'coursecatalog';
     if ($env{'form.showdom'} ne '') {
+        $env{'form.showdom'} = &LONCAPA::clean_domain($env{'form.showdom'});
         if (&Apache::lonnet::domain($env{'form.showdom'}) ne '') {
             $codedom = $env{'form.showdom'};
+        } else {
+            $env{'form.showdom'} = '';
         }
     }
     my $domdesc = &Apache::lonnet::domain($codedom,'description');
@@ -75,20 +78,147 @@ sub handler {
 
     my %domconfig =
         &Apache::lonnet::get_dom('configuration',['coursecategories'],$codedom);
-    my (@cats,@trails,%allitems,%idx,@jsarray,%subcathash,$cathash);
+    my $knownuser = &user_is_known();
+
+    my ($cathash,$cattype);
     if (ref($domconfig{'coursecategories'}) eq 'HASH') {
         $cathash = $domconfig{'coursecategories'}{'cats'};
+        if ($knownuser) {
+            $cattype = $domconfig{'coursecategories'}{'auth'};
+        } else {
+            $cattype = $domconfig{'coursecategories'}{'unauth'};
+        }
     } else {
         $cathash = {};
+        $cattype eq 'std';
+    }
+    if ($cattype eq 'none') {
+        $r->print(&Apache::loncommon::start_page('Course/Community Catalog'));
+        &Apache::lonhtmlcommon::add_breadcrumb
+        ({href=>"/adm/coursecatalog",
+          text=>"Course/Community Catalog"});
+        $r->print(&Apache::lonhtmlcommon::breadcrumbs('Course/Community Catalog'));
+        if ($knownuser) {
+            $r->print('<div>'.&mt('No catalog of LON-CAPA courses/communities is provided for: [_1]',$domdesc).'</div>');
+        } else {
+            if ($domconfig{'coursecategories'}{'auth'} eq 'none') {
+                $r->print('<div>'.&mt('No catalog of LON-CAPA courses/communities is provided for: [_1]',$domdesc).'</div>');
+            } else {
+                $r->print('<div>'.&mt('The catalog of LON-CAPA courses/communities provided for: "[_1]" is only available to users who are logged in.',$domdesc).'</div>');
+            }
+        }      
+        $r->print(&Apache::loncommon::end_page());
+        return OK;
+    }
+
+    my $cnum; 
+    if ($cattype eq 'codesrch') {
+        my ($uniquecode,$codemsg,$brtext);
+        if ($env{'form.uniquecode'}) {
+            $uniquecode = $env{'form.uniquecode'};
+            $uniquecode =~ s/^\s+|\s+$//g;
+        }
+        my $js = '<script type="text/javascript">'."\n".
+                 '// <![CDATA['."\n".
+                 &courselink_javascript()."\n".
+                 '// ]]>'."\n".
+                 '</script>'."\n";
+        $r->print(&Apache::loncommon::start_page('Search for a Course/Community',$js));
+        if ($uniquecode =~ /^\w{6}$/) {
+            &Apache::lonhtmlcommon::add_breadcrumb
+            ({href=>"/adm/coursecatalog",
+              text=>"Course/Community Catalog"});
+            $brtext = 'Search Result';
+        } else {
+            $brtext = 'Course/Community Catalog';
+        }
+        &Apache::lonhtmlcommon::add_breadcrumb
+        ({href=>"/adm/coursecatalog",
+          text=>"$brtext"});
+        $r->print(&Apache::lonhtmlcommon::breadcrumbs('Course/Community Catalog'));
+        $r->print(&coursesearch($codedom,$domdesc,$uniquecode));
+        if ($uniquecode =~ /^\w{6}$/) {
+            $r->print('<hr />');
+            my $confname = $codedom.'-domainconfig';
+            my %codes = &Apache::lonnet::get('uniquecodes',[$uniquecode],$codedom,$confname);
+            if ($codes{$uniquecode}) {
+                $cnum = $codes{$uniquecode};
+                my %courses = &Apache::lonnet::courseiddump($codedom,'.',1,'.','.',
+                                                            $cnum,undef,undef,'.',1);
+                if (keys(%courses)) {
+                    $env{'form.coursenum'} = $cnum;  
+                    my %courseinfo = &build_courseinfo_hash(\%courses,$knownuser,$codedom);
+                    undef($env{'form.coursenum'});
+                    if (ref($courseinfo{$codedom.'_'.$cnum}) eq 'HASH') {
+                        $r->print(&Apache::lonhtmlcommon::start_pick_box());
+                        my @cols = ('title','ownerlastnames','seclist','access');
+                        my %lt = &Apache::lonlocal::texthash(
+                                     title          => 'Title',
+                                     ownerlastnames => 'Owner & Co-owner(s)',
+                                     seclist        => 'Sections',
+                                     access         => 'Default Access Dates for Students',
+                                 );
+                        my @shown;
+                        foreach my $item (@cols) {
+                            if ($courseinfo{$codedom.'_'.$cnum}{$item}) {
+                                push(@shown,$item);
+                            }
+                        }
+                        my $num = 0;
+                        foreach my $item (@shown) {
+                            $num ++;
+                            $r->print(&Apache::lonhtmlcommon::row_title($lt{$item}).
+                                      $courseinfo{$codedom.'_'.$cnum}{$item});
+                            if ($item eq 'title') {
+                                if ($courseinfo{$codedom.'_'.$cnum}{'showsyllabus'}) {
+                                    $r->print('&nbsp;<font size="-2">'.
+                                              '<a href="javascript:ToSyllabus('."'$codedom','$cnum'".')">'.
+                                              &mt('Syllabus').'</a></font>');
+                                }
+                            }
+                            my $arg = ( $num == scalar(@shown) ? 1 : '' );
+                            $r->print(&Apache::lonhtmlcommon::row_closure($arg));
+                        }
+                        $r->print(&Apache::lonhtmlcommon::end_pick_box());
+                        my $selfenroll = &selfenroll_status($courseinfo{$codedom.'_'.$cnum},$codedom.'_'.$cnum);
+                        if ($selfenroll) {
+                            $r->print('<br />'.$selfenroll);
+                        }
+                        $r->print('<form name="linklaunch" method="post" action="">'."\n".
+                                  '<input type="hidden" name="backto" value="coursecatalog" />'."\n".
+                                  '<input type="hidden" name="courseid" value="" />'."\n".
+                                  '</form>'."\n");
+
+                    } else {
+                        $codemsg = &mt('Code matched, but course ID to which this mapped is invalid.');
+                    }
+                } else {
+                    $codemsg = &mt('Code matched, but course ID to which this mapped is invalid.');              
+                } 
+            } else {
+                $codemsg = &mt('No match');
+            }
+        }
+        $r->print('<br />'.&Apache::loncommon::end_page());
+        return OK;
+    } else {
+        if ($env{'form.coursenum'}) {
+            $cnum = $env{'form.coursenum'};
+        }
+    }
+
+    if ($env{'form.catalog_maxdepth'} ne '') {
+        $env{'form.catalog_maxdepth'} =~ s{\D}{}g;
     }
-    my $subcats;
+
+    my (@cats,@trails,%allitems,%idx,@jsarray,%subcathash,$subcats);
     if ($env{'form.withsubcats'}) {
         $subcats = \%subcathash;
     }
     &Apache::loncommon::extract_categories($cathash,\@cats,\@trails,\%allitems,
                                            \%idx,\@jsarray,$subcats);
     my ($numtitles,@codetitles);
-    if ($env{'form.coursenum'} ne '' && &user_is_known()) {
+    if (($env{'form.coursenum'} ne '') && ($knownuser)) {
         &course_details($r,$codedom,$formname,$domdesc,\@trails,\%allitems,\@codetitles);
     } else {
         my ($catlinks,$has_subcats,$selitem) = &category_breadcrumbs($codedom,@cats);
@@ -147,7 +277,7 @@ ENDTOGGJS
         }
         if ($env{'form.currcat_0'} eq 'instcode::0') {
             $numtitles = &instcode_course_selector($r,$codedom,$formname,$domdesc,
-                                                   $catlinks,$catjs,\@codetitles);
+                                                   $catlinks,$catjs,\@codetitles,$cattype);
             if ($env{'form.state'} eq 'listing') {
                 $r->print(&print_course_listing($codedom,$numtitles,undef,undef,undef,
                                                 \@codetitles));
@@ -170,7 +300,7 @@ function check_selected() {
 ENDJS
             }
             $catjs = '<script type="text/javascript">'."\n".$catjs."\n".'</script>';
-            &cat_header($r,$codedom,$catjs,\%add_entries,$catlinks);
+            &cat_header($r,$codedom,$catjs,\%add_entries,$catlinks,undef,$cattype);
             if ($env{'form.currcat_0'} ne '') {
                 $r->print('<form name="'.$formname.
                           '" method="post" action="/adm/coursecatalog">'.
@@ -229,29 +359,48 @@ sub course_details {
              ({href=>"javascript:document.$formname.submit()",
               text=>$brtextone},
              {text=>$brtexttwo});
-    $r->print(&Apache::lonhtmlcommon::breadcrumbs('Course/Community Catalog'));
-    $r->print('<br />');
-    if ($env{'form.currcat_0'} eq 'communities::0') {
-        $r->print(&mt('Detailed community information:'));
-    } else {
-        $r->print(&mt('Detailed course information:'));
-    }
-    $r->print('<br /><br />'.
-              &print_course_listing($codedom,undef,$trails,$allitems,undef,$codetitles).
-              '<br /><br />');
-    $r->print('<form name="'.$formname.'" method="post" action="/adm/coursecatalog">'.
-              '<a href = "javascript:document.coursecatalog.submit()">');
-    if ($env{'form.currcat_0'} eq 'communities::0') {
-        $r->print(&mt('Back to community listing'));
-    } else {
-        $r->print(&mt('Back to course listing'));
-    }
-    $r->print('</a>'.
-              &Apache::lonhtmlcommon::echo_form_input(['coursenum','catalogfilter',
-                                                       'showdetails','courseid']).'</form>');
+    $r->print(
+        &Apache::lonhtmlcommon::breadcrumbs('Course/Community Catalog').
+        '<h2>'.
+        (($env{'form.currcat_0'} eq 'communities::0') ?
+            &mt('Detailed community information:') :
+            &mt('Detailed course information:')).
+        '</h2>'.
+        &print_course_listing($codedom,undef,$trails,$allitems,undef,$codetitles).
+        '<br />'.
+        '<form name="'.$formname.'" method="post" action="/adm/coursecatalog">'.
+        &Apache::lonhtmlcommon::actionbox([
+            '<a href = "javascript:document.coursecatalog.submit()">'.
+            (($env{'form.currcat_0'} eq 'communities::0') ?
+                &mt('Back to community listing') : &mt('Back to course listing')).
+            '</a>'
+        ]).
+        &Apache::lonhtmlcommon::echo_form_input(['coursenum','catalogfilter',
+                                                 'showdetails','courseid']).
+        '</form>');
     return;
 }
 
+sub coursesearch {
+    my ($codedom,$domdesc,$uniquecode) = @_;
+    my %lt = &Apache::lonlocal::texthash (
+                                           crlk => 'Course look-up',  
+                                           code => 'Code',
+                                           ifyo => 'Enter the character code (six letters and numbers)',
+                                           srch => 'Find course',
+                                         );
+    return <<"END";
+<h3>$lt{'crlk'} ($domdesc)</h3>
+$lt{'ifyo'}
+<form name="searchbycode" method="post" action="">
+<span class="LC_nobreak">
+<input type="text" value="$uniquecode" size="6" name="uniquecode" />&nbsp;
+<br />
+<input type="submit" value="$lt{'srch'}" name="srch" /></span>
+</form>
+END
+}
+
 sub courselink_javascript {
     return <<"END";
 
@@ -279,7 +428,7 @@ END
 }
 
 sub instcode_course_selector {
-    my ($r,$codedom,$formname,$domdesc,$catlinks,$catjs,$codetitles) = @_;
+    my ($r,$codedom,$formname,$domdesc,$catlinks,$catjs,$codetitles,$cattype) = @_;
     my %coursecodes = ();
     my %codes = ();
     my %cat_titles = ();
@@ -292,8 +441,11 @@ sub instcode_course_selector {
     my ($jscript,$totcodes,$numtitles,$lasttitle) = 
         &Apache::courseclassifier::instcode_selectors_data($codedom,$formname,
                            \%cat_items,$codetitles,\%cat_titles,\%cat_order);
-    my $js = '<script type"text/javascript">'."\n$jscript\n$catjs\n".
-              '</script>';
+    my $js = '<script type="text/javascript">'."\n".
+             '// <![CDATA['."\n".
+             "$jscript\n$catjs\n".
+             '// ]]>'."\n".
+             '</script>';
     if ($totcodes) {
         if (($env{'form.state'} eq 'listing') && ($numtitles > 0)) {
             $add_entries{'onLoad'} = 'setElements();';
@@ -301,7 +453,7 @@ sub instcode_course_selector {
         if (&user_is_dc($codedom)) {
             $add_entries{'onLoad'} .= ' toggleStatuses();toggleWasActive();'
         }
-        &cat_header($r,$codedom,$js,\%add_entries,$catlinks,$numtitles);
+        &cat_header($r,$codedom,$js,\%add_entries,$catlinks,$numtitles,$cattype);
         my $cat_maxdepth = $env{'form.catalog_maxdepth'};
         $r->print('<form name="'.$formname.'" method="post" action="/adm/coursecatalog">'.
                   '<input type="hidden" name="catalog_maxdepth" value="'.$cat_maxdepth.'" />'."\n".
@@ -321,8 +473,12 @@ sub instcode_course_selector {
                   '<input type="hidden" name="numtitles" value="'.$numtitles.
                   '" /></form><br /><br />');
     } else {
-        $js = '<script type"text/javascript">'."\n$catjs\n".'</script>';
-        &cat_header($r,$codedom,$js,\%add_entries,$catlinks,$numtitles);
+        $js = '<script type="text/javascript">'."\n".
+              '// <![CDATA['."\n".
+              "$catjs\n".
+              '// ]]>'."\n".
+              '</script>';
+        &cat_header($r,$codedom,$js,\%add_entries,$catlinks,$numtitles,$cattype);
         my $cat_maxdepth = $env{'form.catalog_maxdepth'};
         $r->print('<form name="'.$formname.'" method="post" action="/adm/coursecatalog">'.
                   '<input type="hidden" name="catalog_maxdepth" value="'.$cat_maxdepth.'" />'.
@@ -334,7 +490,7 @@ sub instcode_course_selector {
 }
 
 sub cat_header {
-    my ($r,$codedom,$js,$add_entries,$catlinks,$numtitles) = @_;
+    my ($r,$codedom,$js,$add_entries,$catlinks,$numtitles,$cattype) = @_;
     my $start_page =
         &Apache::loncommon::start_page('Course/Community Catalog',$js,
                                        { 'add_entries' => $add_entries, });
@@ -359,15 +515,17 @@ sub cat_header {
           text=>"Course/Community Catalog"});
     }
     $r->print(&Apache::lonhtmlcommon::breadcrumbs('Course/Community Catalog'));
-    my $onchange = 'this.form.submit()';
-    $r->print('<form name="coursecatdom" method="post" action="/adm/coursecatalog">'.
-              '<table border="0"><tr><td><b>'.&mt('Domain:').'</b></td><td>'.
-              &Apache::loncommon::select_dom_form($codedom,'showdom','',1,$onchange));
-    if (!$onchange) {
+    if ($cattype eq 'std') {
+        my $onchange = 'this.form.submit()';
+        $r->print('<form name="coursecatdom" method="post" action="/adm/coursecatalog">'.
+                  '<table border="0"><tr><td><b>'.&mt('Domain:').'</b></td><td>'.
+                  &Apache::loncommon::select_dom_form($codedom,'showdom','',1,$onchange));
+        if (!$onchange) {
 	   $r->print('&nbsp;<input type="submit" name="godom" value="'.&mt('Change').'" />');
+        }
+        $r->print('</td></tr></table></form>');
     }
-    $r->print('</td></tr></table></form>'.
-	      '<form name="coursecats" method="post" action="/adm/coursecatalog"'.
+    $r->print('<form name="coursecats" method="post" action="/adm/coursecatalog"'.
               ' onsubmit="return check_selected();">'.
               '<table border="0"><tr>'.$catlinks.'</tr></table></form>');
     return;
@@ -405,8 +563,6 @@ sub category_breadcrumbs {
             if (($env{'form.currcat_0'} ne '') && 
                 ($env{'form.currcat_0'} ne 'instcode::0')) {
                 $catlinks .= $crumbsymbol;
-            } else {
-                $catlinks .= '</td>';
             }
         }
     } else {
@@ -633,12 +789,12 @@ sub additional_filters {
                                ' />'.$title.'</label></span>';
                     if ($type eq 'Previous') {
                         my %milestonetext = &Apache::lonlocal::texthash (
-                            accessend => 'prior to default end access date',
-                            enrollend => 'prior to end date for auto-enrollment',
-                            date      => 'prior to specific date:',
+                            accessend => 'immediately prior to default end access date',
+                            enrollend => 'immediately prior to end date for auto-enrollment',
+                            date      => 'immediately prior to specific date:',
                         );
                         my @statuses = &Apache::loncommon::get_env_multiple('form.showcounts');
-                        $output .= '<span id="choosewasacctext">';
+                        $output .= '<span id="choosewasacctext" class="LC_nobreak">';
                         if ($checked) {
                             $output .= &get_wasactive_text();
                         }
@@ -736,11 +892,10 @@ sub get_statustitles {
 sub get_wasactive_text {
     my $wasacctext = ' -- ';
     if ($env{'form.currcat_0'} eq 'communities::0') {
-        $wasacctext .= &mt('where members had access ...');
+        $wasacctext .= &mt('where member access status was current ...');
     } else {
-        $wasacctext .= &mt('where students had access ...');
+        $wasacctext .= &mt('where student access status was current ...');
     }
-    $wasacctext .= '<br />';
     return $wasacctext;
 }
 
@@ -818,11 +973,13 @@ sub print_course_listing {
                                                  $env{'form.coursenum'},
                                                  undef,undef,'.',1);
         if (keys(%courses) == 0) {
+            $output = '<p class="LC_error">';
             if ($env{'form.currcat_0'} eq 'communities::0') {
                 $output .= &mt('The courseID provided does not match a community in this domain.');
             } else { 
                 $output .= &mt('The courseID provided does not match a course in this domain.');
             }
+            $output .= '</p>';
             return $output;
         }
     } else {
@@ -832,17 +989,13 @@ sub print_course_listing {
             %courses = &search_courselist($domain,$subcats);
         }
         if (keys(%courses) == 0) {
+            $output = '<p class="LC_info">';
             if ($env{'form.currcat_0'} eq 'communities::0') {
-                $output =
-                    '<p class="LC_info">'
-                   .&mt('No communities match the criteria you selected.')
-                   .'</p>';
+                $output .= &mt('No communities match the criteria you selected.');
             } else {
-                $output =
-                    '<p class="LC_info">'
-                   .&mt('No courses match the criteria you selected.')
-                   .'</p>';
+                $output .= &mt('No courses match the criteria you selected.');
             }
+            $output .= '</p>';
             return $output;
         }
         if (($knownuser) && (!$env{'form.showdetails'}) && (!&user_is_dc($domain))) {
@@ -852,10 +1005,8 @@ sub print_course_listing {
         }
     }
     my $now = time;
-    my %domconfig =
-        &Apache::lonnet::get_dom('configuration',['usercreation'],$domain);
     $output .= &construct_data_table($knownuser,$domain,\%courses,$details,undef,
-                                     $now,\%domconfig,$trails,$allitems);
+                                     $now,$trails,$allitems);
     $output .= "\n".'<form name="linklaunch" method="post" action="">'.
                '<input type="hidden" name="backto" value="coursecatalog" />'.
                '<input type="hidden" name="courseid" value="" />'.
@@ -864,8 +1015,7 @@ sub print_course_listing {
 }
 
 sub construct_data_table {
-    my ($knownuser,$domain,$courses,$details,$usersections,$now,$domconfig,
-        $trails,$allitems) = @_;
+    my ($knownuser,$domain,$courses,$details,$usersections,$now,$trails,$allitems) = @_;
     my %sortname;
     if (($details eq '') || ($env{'form.showdetails'})) {
         $sortname{'Code'} = 'code';
@@ -946,10 +1096,21 @@ sub construct_data_table {
     }
     $output .= '<th>'.&mt('Self-enroll (if permitted)').'</th>';
     &Apache::loncommon::end_data_table_header_row();
-    my %numbers;
+    my (%numbers,%creditsum);
+    my ($showcredits,$defofficial,$defunofficial,$deftextbook);
+    my %domdefaults = &Apache::lonnet::get_domain_defaults($domain);
+    unless ($env{'form.currcat_0'} eq 'communities::0') {
+        if ($domdefaults{'officialcredits'} || $domdefaults{'unofficialcredits'} || $domdefaults{'textbookcredits'}) {
+            $showcredits = 1;
+            $defofficial = $domdefaults{'officialcredits'};
+            $defunofficial = $domdefaults{'unofficialcredits'};
+            $deftextbook = $domdefaults{'textbookcredits'};
+        }
+    }
     my %courseinfo = &build_courseinfo_hash($courses,$knownuser,$domain,$details,
                                             $usersections,\@fields,\%fieldtitles,
-                                            $wasactiveon,\%numbers);
+                                            $wasactiveon,\%numbers,\%creditsum,
+                                            $showcredits,$defofficial,$defunofficial,$deftextbook);
     my %Sortby;
     foreach my $course (sort(keys(%{$courses}))) {
         if ($env{'form.sortby'} eq 'code') {
@@ -992,33 +1153,51 @@ sub construct_data_table {
                                                      'Previous' => 'Total previous students',
                                                      'courses'  => 'Total unique codes and courses without codes',
                                                      'sections' => 'Total sections',
-                                                     'xlists'   => 'Total cross-listings',  
+                                                     'xlists'   => 'Total cross-listings',
                                                  );
+            if ($showcredits) {
+                $lt{'cr_Active'} = &mt('Total current student credit hours');
+                $lt{'cr_Future'} = &mt('Total future student credit hours');
+                $lt{'cr_Previous'} = &mt('Total previous student credit hours');
+            }
             if ($env{'form.currcat_0'} eq 'communities::0') {
                 $lt{'courses'} = &mt('Total communities');
                 $lt{'Active'} = &mt('Total current members'); 
                 $lt{'Future'} = &mt('Total future members');
                 $lt{'Previous'} = &mt('Total previous members');
-            } 
+            }
+            my $colspan = 8;
+            if ($showcredits) {
+                $colspan = 4;
+            }
             $output .= '<tr class="LC_footer_row">'.
                        '<td colspan="2">&nbsp;</td>'.
-                       '<td colspan="8">'.
+                       '<td colspan="'.$colspan.'">'.
                        '<table border="0">';
             foreach my $item ('courses','sections','xlists') {
                 $output .= '<tr>'.
-                           '<td>'.$lt{$item}.'</td>'.
+                           '<td>'.$lt{$item}.'</td><td>&nbsp;</td>'.
                            '<td align="right">'.$numbers{$item}.'</td>'.
                            '</tr>'."\n";
             }
             if (@fields > 0) { 
                 foreach my $status (@fields) {
                     $output .= '<tr>'.
-                               '<td>'.$lt{$status}.'</td>'.
+                               '<td>'.$lt{$status}.'</td><td>&nbsp;</td>'.
                                '<td align="right">'.$numbers{$status}.'</td>'.
                                '</tr>'."\n";
                 }
             }
-            $output .= '</table></td></tr>';
+            $output .= '</table></td>';
+            if ($showcredits) {
+                $output .= '<td colspan="'.$colspan.'" valign="bottom"><table>';
+                foreach my $status (@fields) {
+                    $output .= '<tr>'.
+                               '<td>'.$lt{'cr_'.$status}.'</td><td>&nbsp;</td>'.
+                               '<td align="right">'.$creditsum{$status}.'</td></tr>';
+                }
+                $output .= '</table></td></tr>';
+            }
         }
     }
     $output .= &Apache::loncommon::end_data_table();
@@ -1027,14 +1206,14 @@ sub construct_data_table {
 
 sub build_courseinfo_hash {
     my ($courses,$knownuser,$domain,$details,$usersections,$fields,$fieldtitles,
-        $wasactiveon,$numbers) = @_;
+        $wasactiveon,$numbers,$creditsum,$showcredits,$defofficial,$defunofficial) = @_;
     my %courseinfo;
     my $now = time;
     my $gettotals;
     if ((keys(%{$courses}) > 0) && (&user_is_dc($domain)) && ($details)) {
         $gettotals = 1;
     }
-    my (%uniquecodes,$nocodes),;
+    my (%uniquecodes,$nocodes,$defcreds);
     foreach my $course (keys(%{$courses})) {
         my $descr;
         if (ref($courses->{$course}) eq 'HASH') {
@@ -1116,6 +1295,16 @@ sub build_courseinfo_hash {
             $showsyllabus = $coursehash{'showsyllabus'};
         }
         $courseinfo{$course}{'showsyllabus'} = $showsyllabus;
+        if ($showcredits) {
+            if ($coursehash{'internal.defaultcredits'}) {
+                $courseinfo{$course}{'defaultcredits'} = $coursehash{'internal.defaultcredits'};
+            } elsif ($instcode ne '') {
+                $courseinfo{$course}{'defaultcredits'} = $defofficial;
+            } else {
+                $courseinfo{$course}{'defaultcredits'} = $defunofficial;
+            }
+            $defcreds = $courseinfo{$course}{'defaultcredits'};
+        }
         if (((defined($env{'form.coursenum'}) && ($cnum eq $env{'form.coursenum'}))) ||
             ($knownuser && ($details == 1))) {
             my $milestone;
@@ -1136,7 +1325,7 @@ sub build_courseinfo_hash {
             }
             $courseinfo{$course}{'counts'} =  
                 &count_students($cdom,$cnum,$numsec,$fields,$fieldtitles,$gettotals,
-                                $numbers,$milestone);
+                                $numbers,$creditsum,$showcredits,$defcreds,$milestone);
             if ($instcode ne '') {
                 $courseinfo{$course}{'autoenrollment'} =
                     &autoenroll_info(\%coursehash,$now,$seclist,$xlist_items,
@@ -1201,7 +1390,8 @@ sub build_courseinfo_hash {
 }
 
 sub count_students {
-    my ($cdom,$cnum,$numsec,$fieldsref,$titlesref,$getcounts,$numbers,$wasactiveon) = @_;
+    my ($cdom,$cnum,$numsec,$fieldsref,$titlesref,$getcounts,$numbers,$creditsum,
+        $showcredits,$defcreds,$wasactiveon) = @_;
     my $countslist = '<span class="LC_nobreak">'.
                      &mt('[quant,_1,section,sections,No sections]',$numsec).'</span>';
     my (@fields,%titles,$showexpired);
@@ -1216,23 +1406,42 @@ sub count_students {
         return;
     }
     my $classlist = &Apache::loncoursedata::get_classlist($cdom,$cnum);
-    my %student_count = (
+    my (%student_count,%credit_count);
+    %student_count = (
                            Active   => 0,
                            Future   => 0,
                            Previous => 0,
-                       );
+                     );
+    if ($showcredits) {
+        %credit_count = (
+                          Active   => 0,
+                          Future   => 0,
+                          Previous => 0,
+                        );
+    }
     my %idx;
     $idx{'status'} = &Apache::loncoursedata::CL_STATUS();
     $idx{'end'}    = &Apache::loncoursedata::CL_END();
+    $idx{'credits'} = &Apache::loncoursedata::CL_CREDITS();
     while (my ($student,$data) = each(%$classlist)) {
         my $status = $data->[$idx{'status'}];
+        my $credits = $data->[$idx{'credits'}];
+        if ($credits eq '') {
+            $credits = $defcreds;  
+        }
         if ($status eq 'Expired') {
             if (($showexpired) &&
                 ($data->[$idx{'end'}] >= $wasactiveon)) {
                 $student_count{'Previous'} ++;
+                if ($showcredits) {
+                    $credit_count{'Previous'} += $credits; 
+                }
             }
         } else {
             $student_count{$status} ++;
+            if ($showcredits) {
+                $credit_count{$status} += $credits;
+            }
         }
     }
     if (@fields) {
@@ -1241,6 +1450,9 @@ sub count_students {
             $countslist .= '<span class="LC_nobreak">'.$titles{$status}.': '.
                            $student_count{$status}.'</span><br />';
             $numbers->{$status} += $student_count{$status};
+            if ($showcredits) {
+                $creditsum->{$status} += $credit_count{$status};
+            }
         }
     }
     return $countslist;
@@ -1308,29 +1520,39 @@ sub courseinfo_row {
             $output .= "<td><a href=\"javascript:setCourseId('$cnum')\">".&mt('Show more details').'</a></td>';
         }
     }
-    my $selfenroll;
-    if ($info->{'selfenroll_types'}) {
-        my $showstart = &Apache::lonlocal::locallocaltime($info->{'selfenroll_start'});
-        my $showend = &Apache::lonlocal::locallocaltime($info->{'selfenroll_end'});
-        if (($info->{'selfenroll_end'} > 0) && ($info->{'selfenroll_end'} > $now)) {
-            if (($info->{'selfenroll_start'} > 0) && ($info->{'selfenroll_start'} > $now)) {
-                $output .= '<td>'.&mt('Starts: [_1]','<span class="LC_cusr_emph">'.$showstart.'</span>').'<br />'.&mt('Ends: [_1]','<span class="LC_cusr_emph">'.$showend.'</span>').'</td>';
-            } else { 
-                $output .= '<td><a href="javascript:ToSelfenroll('."'$course'".')">'.&mt('Enroll in course').'</a><br />';
-                if ($info->{'selfenroll_end'} == 0) {
-                    $output .= &mt('Available permanently');
-                } elsif ($info->{'selfenroll_end'} > $now) {
-                    $output .= &mt('Self-enrollment ends: [_1]','<span class="LC_cusr_emph">'.$showend.'</span>');
+    my $selfenroll = &selfenroll_status($info,$course);
+    if ($selfenroll) {
+        $output .= '<td>'.$selfenroll.'</td>';
+    } else {
+        $output .= '<td>&nbsp;</td>';
+    }
+    $$countref ++;
+    return $output;
+}
+
+sub selfenroll_status {
+    my ($info,$course) = @_;
+    my $now = time;
+    my $output;
+    if (ref($info) eq 'HASH') {
+        if ($info->{'selfenroll_types'}) {
+            my $showstart = &Apache::lonlocal::locallocaltime($info->{'selfenroll_start'});
+            my $showend = &Apache::lonlocal::locallocaltime($info->{'selfenroll_end'});
+            if (($info->{'selfenroll_end'} > 0) && ($info->{'selfenroll_end'} > $now)) {
+                if (($info->{'selfenroll_start'} > 0) && ($info->{'selfenroll_start'} > $now)) {
+                    $output = &mt('Starts: [_1]','<span class="LC_cusr_emph">'.$showstart.'</span>').'<br />'.&mt('Ends: [_1]','<span class="LC_cusr_emph">'.$showend.'</span>');
+                } else {
+                    $output = '<a href="javascript:ToSelfenroll('."'$course'".')">'.
+                              &mt('Enroll in course').'</a><br />';
+                    if ($info->{'selfenroll_end'} == 0) {
+                        $output .= &mt('Available permanently');
+                    } elsif ($info->{'selfenroll_end'} > $now) {
+                        $output .= &mt('Self-enrollment ends: [_1]','<span class="LC_cusr_emph">'.$showend.'</span>');
+                    }
                 }
-                $output .= '</td>';
             }
-            $selfenroll = 1;
         }
     }
-    if (!$selfenroll) {
-        $output .= '<td>&nbsp;</td>';
-    }
-    $$countref ++;
     return $output;
 }