--- loncom/interface/lonpickcourse.pm	2009/11/04 14:12:19	1.90
+++ loncom/interface/lonpickcourse.pm	2010/03/16 05:11:40	1.94
@@ -1,7 +1,7 @@
 # The LearningOnline Network
 # Pick a course
 #
-# $Id: lonpickcourse.pm,v 1.90 2009/11/04 14:12:19 raeburn Exp $
+# $Id: lonpickcourse.pm,v 1.94 2010/03/16 05:11:40 raeburn Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -79,7 +79,7 @@ sub handler {
         $typeelement = '<input type="hidden" name="typeelement" value="'.$env{'form.typeelement'}.'" />';
     }
 
-    # if called when a DC is creating a course
+    # if called when a DC is creating a course for another user.
     if ($env{'form.form'} eq 'ccrs') {
         ($cloneruname,$clonerudom) = ($env{'form.cloner'} =~ /^($match_username):($match_domain)$/);
     }
@@ -142,8 +142,16 @@ sub handler {
     my $action = '/adm/pickcourse';
     my ($numtitles,$showroles,$nohost);
     if (!$onlyown) {
-        my $filterlist = ['domainfilter','descriptfilter',
-                          'instcodefilter'];
+        my $filterlist = ['domainfilter'];
+        # created filter for DCs only
+        if ($env{'user.adv'} && $env{'form.domainfilter'} &&
+            exists($env{'user.role.dc./'.$env{'form.domainfilter'}.'/'})) {
+            my $loncaparev = &Apache::lonnet::get_server_loncaparev($env{'form.domainfilter'});
+            if ($loncaparev ne 'unknown_cmd') {
+                push(@{$filterlist},'createdfilter');
+            }
+        }
+        push(@{$filterlist},('descriptfilter','instcodefilter'));
         if ($env{'form.form'} eq 'rules') {
             push(@{$filterlist},'personfilter');
             if (($env{'form.personfilter'} ne '') && ($env{'form.persondomfilter'} ne '')) {
@@ -306,12 +314,8 @@ sub display_matched_courses {
             }
             my $cctitle = &Apache::lonnet::plaintext($ccrole,$type);
             my $dctitle = &Apache::lonnet::plaintext('dc');
-            my $ccrolechk = ' checked="checked" ';
-            my $menuchk = ' ';
-            if ($env{'form.prevphase'} ne '') {
-                 $ccrolechk = ' ';
-                 $menuchk = ' checked="checked" ';
-            }
+            my $ccrolechk = ' ';
+            my $menuchk = ' checked="checked" ';
             $r->print(
                 '<fieldset>'
                .'<legend>'.&mt('Action').'</legend>'
@@ -380,6 +384,14 @@ sub display_matched_courses {
         }
         $r->print(&Apache::loncommon::end_data_table_header_row());
     }
+    my %cc_cloneable;
+    if (($env{'form.form'} eq 'ccrs') || ($env{'form.form'} eq 'requestcrs')) {
+        my ($coord_cloneable,$warning) =
+            &get_coordinator_cloneable($cloneruname,$clonerudom,$type);
+        if ($coord_cloneable) {
+            map {$cc_cloneable{$_} = 1;} split('&',$coord_cloneable);
+        }
+    }
     foreach my $description (sort { lc($a) cmp lc($b) } (keys(%by_descrip))) {
         foreach my $course (@{$by_descrip{$description}}) {
             $r->print(&Apache::loncommon::start_data_table_row());
@@ -392,17 +404,22 @@ sub display_matched_courses {
                 $instcode = $courses{$course}{'inst_code'};
                 $ttype = $courses{$course}{'type'};
                 if (($env{'form.form'} eq 'ccrs') || ($env{'form.form'} eq 'requestcrs')) {
-                    my $cloners = $courses{$course}{'cloners'};
-                    if ($cloners ne '') { 
-                        my @cloneable = split(',',$cloners);
-                        if (grep(/^\*$/,@cloneable)) {
-                            $canclone = 1;
-                        }
-                        if (grep(/^\*:\Q$env{'form.clonerudom'}\E$/,@cloneable)) {
-                            $canclone = 1;
-                        }
-                        if (grep(/^\Q$cloneruname\E:\Q$clonerudom\E$/,@cloneable)) {
-                            $canclone = 1;
+                    if ($cc_cloneable{$courses{$course}{'cnum'}.':'.$courses{$course}{'domain'}}) {
+                        $canclone = 1;
+                    }
+                    unless ($canclone) {
+                        my $cloners = $courses{$course}{'cloners'};
+                        if ($cloners ne '') { 
+                            my @cloneable = split(',',$cloners);
+                            if (grep(/^\*$/,@cloneable)) {
+                                $canclone = 1;
+                            }
+                            if (grep(/^\*:\Q$env{'form.clonerudom'}\E$/,@cloneable)) {
+                                $canclone = 1;
+                            }
+                            if (grep(/^\Q$cloneruname\E:\Q$clonerudom\E$/,@cloneable)) {
+                                $canclone = 1;
+                            }
                         }
                     }
                 }
@@ -417,7 +434,7 @@ sub display_matched_courses {
                 ($descr,$instcode,$singleowner,$ttype)=split(/:/,$courses{$course});
                 push(@owners,&unescape($singleowner));
             }
-            my $ownerstr = join(', ',@owners);
+            my $ownerstr = join(', ',map { &Apache::loncommon::plainname(split(':',$_)); } @owners);
             $r->print('<td>'.&course_chooser($multiple,$cdom,$cnum,$cleandesc,$canclone).'</td>');
             $r->print('<td>'.$description.'</td>');
             $r->print('<td>');
@@ -522,8 +539,9 @@ sub build_filters {
     unless ($env{'form.interface'} eq 'textual') {
         $onchange = 'javascript:updateFilters(this)';
     }
-    my ($domainselectform,$sincefilterform,$ownerdomselectform,$persondomselectform,
-        $instcodeform,$typeselectform,$instcodetitle);
+    my ($domainselectform,$sincefilterform,$createdfilterform,
+        $ownerdomselectform,$persondomselectform,$instcodeform,
+        $typeselectform,$instcodetitle);
     foreach my $item (@{$filterlist}) {
         $filter->{$item} = $env{'form.'.$item};
         if ($item ne 'descriptfilter' && $item ne 'instcodefilter') {
@@ -586,30 +604,23 @@ sub build_filters {
     }
 
     # last course activity filter and selection
-    $filter->{'sincefilter'} = $env{'form.sincefilter'};
-    $filter->{'sincefilter'} =~ s/[^\d-]//g;
-    if (!$filter->{'sincefilter'}) { $filter->{'sincefilter'}=-1; }
-    $sincefilterform=&Apache::loncommon::select_form($filter->{'sincefilter'},
-       'sincefilter',('-1'=>'',
-                      '86400' => 'today',
-                      '604800' => 'last week',
-                      '2592000' => 'last month',
-                      '7776000' => 'last three months',
-                      '15552000' => 'last six months',
-                      '31104000' => 'last year',
-                      'select_form_order' =>
-                      ['-1','86400','604800','2592000','7776000',
-                      '15552000','31104000']));
-
-    my %lt = (
-              'cac' => &mt("$type Activity"),
-              'cde' => &mt("$type Title"),
-              'cdo' => &mt("$type Domain"),
-              'ins' => &mt('Institutional Code'),
-              'inc' => &mt('Institutional Categorization'),
-              'cow' => &mt("$type Owner/Co-owner"),
-              'cop' => &mt("$type Personnel Includes"),
-              'cog' => &mt('Type')
+    $sincefilterform = &timebased_select_form('sincefilter',$filter);
+
+    # course created filter and selection
+    if (exists($filter->{'createdfilter'})) {
+        $createdfilterform = &timebased_select_form('createdfilter',$filter);
+    }
+
+    my %lt = &Apache::lonlocal::texthash(
+                'cac' => "$type Activity",
+                'ccr' => "$type Created", 
+                'cde' => "$type Title",
+                'cdo' => "$type Domain",
+                'ins' => 'Institutional Code',
+                'inc' => 'Institutional Categorization',
+                'cow' => "$type Owner/Co-owner",
+                'cop' => "$type Personnel Includes",
+                'cog' => 'Type',
              );
 
     if (($env{'form.form'} eq 'ccrs') || ($env{'form.form'} eq 'requestcrs')) {
@@ -708,6 +719,11 @@ $typeelement
                   .$sincefilterform
                   .&Apache::lonhtmlcommon::row_closure();
     }
+    if ($createdfilterform) {
+        $output .= &Apache::lonhtmlcommon::row_title($lt{'ccr'})
+                  .$createdfilterform
+                  .&Apache::lonhtmlcommon::row_closure();
+    }
     if ($domainselectform) {
         $output .= &Apache::lonhtmlcommon::row_title($lt{'cdo'})
                   .$domainselectform
@@ -760,33 +776,15 @@ $typeelement
                   .&Apache::lonhtmlcommon::row_closure(1);
     }
     $output .= &Apache::lonhtmlcommon::end_pick_box().'<p>';
-    my $warning;
+    my ($coord_cloneable,$warning);
     if (($env{'form.form'} eq 'ccrs') || ($env{'form.form'} eq 'requestcrs')) {
-        my $cloneruhome=&Apache::lonnet::homeserver($cloneruname,$clonerudom);
-        my $cc_clone;
-        if ($cloneruhome eq 'no_host') {
-            $warning = '<div class="LC_error">'.&mt('Intended course owner does not exist').
-                       '</div>';
-        } else {
-            my $ccrole;
-            if ($type eq 'Community') {
-                $ccrole = 'co';
-            } elsif ($type eq 'Course') {
-                $ccrole = 'cc';
-            }
-            if ($env{'form.form'} eq 'ccrs') {
-                $output .= '<input type="hidden" name="cloner" value="'.$env{'form.cloner'}.'" />'."\n";
-            }
-            my %ccroles = &Apache::lonnet::get_my_roles($cloneruname,$clonerudom,
-                                                        'userroles',['active'], [$ccrole]);
-            foreach my $key (sort(keys(%ccroles))) {
-                my ($cnum,$cdom,$role) = split(':',$key);
-                $cc_clone .= $cdom.':'.$cnum.'&';
-            }
-            $cc_clone =~ s/\&$//;
+        ($coord_cloneable,$warning) = 
+            &get_coordinator_cloneable($cloneruname,$clonerudom,$type);
+        if ($env{'form.form'} eq 'ccrs') {
+            $output .= '<input type="hidden" name="cloner" value="'.$env{'form.cloner'}.'" />'."\n";
         }
-        if ($cc_clone ne '') {
-            $output .= '<input type="hidden" name="cc_clone" value="'.$cc_clone.'" />';
+        if ($coord_cloneable) {
+            $output .= '<input type="hidden" name="cc_clone" value="'.$coord_cloneable.'" />';
         }
     }
     $output .= '<input type="hidden" name="updater" value="">'."\n".
@@ -795,6 +793,52 @@ $typeelement
     return $jscript.$warning.$output;
 }
 
+sub timebased_select_form {
+    my ($item,$filter) = @_;
+    if (ref($filter) eq 'HASH') {
+        $filter->{$item} = $env{'form.'.$item};
+        $filter->{$item} =~ s/[^\d-]//g;
+        if (!$filter->{$item}) { $filter->{$item}=-1; }
+        return &Apache::loncommon::select_form( 
+                            $filter->{$item},
+                            $item,
+                            (      '-1' => '',
+                                '86400' => &mt('today'),
+                               '604800' => &mt('last week'),
+                              '2592000' => &mt('last month'),
+                              '7776000' => &mt('last three months'),
+                             '15552000' => &mt('last six months'),
+                             '31104000' => &mt('last year'),
+                    'select_form_order' =>
+                           ['-1','86400','604800','2592000','7776000',
+                            '15552000','31104000']));
+    }
+}
+
+sub get_coordinator_cloneable {
+    my ($cloneruname,$clonerudom,$type) = @_;
+    if (&Apache::lonnet::homeserver($cloneruname,$clonerudom) eq 'no_host') {
+        my $warning = '<div class="LC_error">'.&mt('Intended course owner does not exist').
+                   '</div>';
+        return ('',$warning);
+    } else {
+        my ($cc_clone,$ccrole);
+        if ($type eq 'Community') {
+            $ccrole = 'co';
+        } elsif ($type eq 'Course') {
+            $ccrole = 'cc';
+        }
+        my %ccroles = &Apache::lonnet::get_my_roles($cloneruname,$clonerudom,
+                                                    'userroles',['active'], [$ccrole]);
+        foreach my $key (sort(keys(%ccroles))) {
+            my ($cnum,$cdom,$role) = split(':',$key);
+            $cc_clone .= $cdom.':'.$cnum.'&';
+        }
+        $cc_clone =~ s/\&$//;
+        return ($cc_clone);
+    }
+}
+
 sub instcode_selectors {
     my ($codedom,$formname,$officialjs) = @_;
     my ($output,@codetitles,%cat_titles,%cat_order,%cat_items);
@@ -843,8 +887,14 @@ sub search_courses {
                 $filter->{$item}='.';
             }
         }
+        my $now = time;
         my $timefilter = 
-           ($filter->{'sincefilter'}==-1?1:time-$filter->{'sincefilter'});
+           ($filter->{'sincefilter'}==-1?1:$now-$filter->{'sincefilter'});
+        my ($createdbefore,$createdafter);
+        if (($filter->{'createdfilter'} ne '') && ($filter->{'createdfilter'} !=-1)) {
+            $createdbefore = $now;
+            $createdafter = $now-$filter->{'createdfilter'};
+        }
         my ($instcodefilter,$regexpok);
         if ($numtitles) {
             if ($env{'form.official'} eq 'on') {
@@ -875,7 +925,8 @@ sub search_courses {
                                           $filter->{'coursefilter'},
                                           undef,undef,$type,$regexpok,undef,undef,
                                           undef,undef,$cloner,$env{'form.cc_clone'},
-                                          $filter->{'cloneableonly'});
+                                          $filter->{'cloneableonly'},
+                                          $createdbefore,$createdafter);
         if (($filter->{'personfilter'} ne '') && ($filter->{'persondomfilter'} ne '')) {
             my %rolehash = &Apache::lonnet::get_my_roles($filter->{'personfilter'},
                                                          $filter->{'persondomfilter'},