--- loncom/interface/lonuserutils.pm	2007/12/21 20:34:26	1.21
+++ loncom/interface/lonuserutils.pm	2007/12/22 00:39:52	1.22
@@ -1,7 +1,7 @@
 # The LearningOnline Network with CAPA
 # Utility functions for managing LON-CAPA user accounts
 #
-# $Id: lonuserutils.pm,v 1.21 2007/12/21 20:34:26 raeburn Exp $
+# $Id: lonuserutils.pm,v 1.22 2007/12/22 00:39:52 raeburn Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -68,7 +68,8 @@ sub modifystudent {
                     my $reply=&Apache::lonnet::modifystudent
                         # dom  name  id mode pass     f     m     l     g
                         ($udom,$unam,'',  '',  '',undef,undef,undef,undef,
-                         $section,time,undef,undef,$desiredhost);
+                         $section,time,undef,undef,$desiredhost,'','manual',
+                         '',$courseid);
                     $result .= $reply.':';
                 }
             }
@@ -126,6 +127,7 @@ sub modifyuserrole {
                                     $email,$role,$start,$end);
     if ($userresult eq 'ok') {
         if ($role ne '') {
+            $role =~ s/_/\//g;
             $roleresult = &Apache::lonnet::assignrole($udom,$uname,$scope,
                                                       $role,$end,$start);
         }
@@ -145,7 +147,7 @@ sub propagate_id_change {
                 one_time => 1,
                );
     foreach my $item (keys(%roleshash)) {
-        my ($cnum,$cdom,$role) = split(/:/,$item);
+        my ($cnum,$cdom,$role) = split(/:/,$item,-1);
         my ($start,$end) = split(/:/,$roleshash{$item});
         if (&Apache::lonnet::is_course($cdom,$cnum)) {
             my $result = &update_classlist($cdom,$cnum,$udom,$uname,$user);
@@ -265,7 +267,7 @@ sub hidden_input {
 }
 
 sub print_upload_manager_header {
-    my ($r,$datatoken,$distotal,$krbdefdom,$context)=@_;
+    my ($r,$datatoken,$distotal,$krbdefdom,$context,$permission)=@_;
     my $javascript;
     #
     if (! exists($env{'form.upfile_associate'})) {
@@ -295,9 +297,14 @@ sub print_upload_manager_header {
         $password_choice = 'int';
     }
     #
+    my $groupslist;
+    if ($context eq 'course') {
+        $groupslist = &get_groupslist();
+    }
     my $javascript_validations =
-        &javascript_validations('auth',$krbdefdom,$password_choice,undef,
-                                $env{'request.role.domain'});
+        &javascript_validations('upload',$krbdefdom,$password_choice,undef,
+                                $env{'request.role.domain'},$context,
+                                $permission,$groupslist);
     my $checked=(($env{'form.noFirstLine'})?' checked="checked" ':'');
     $r->print(&mt('Total number of records found in file: <b>[_1]</b>.',$distotal).
               "<br />\n");
@@ -324,26 +331,51 @@ sub print_upload_manager_header {
 ###############################################################
 ###############################################################
 sub javascript_validations {
-    my ($mode,$krbdefdom,$curr_authtype,$curr_authfield,$domain)=@_;
-    my $authheader;
-    if ($mode eq 'auth') {
-        my %param = ( formname => 'studentform',
-                      kerb_def_dom => $krbdefdom,
-                      curr_authtype => $curr_authtype);
-        $authheader = &Apache::loncommon::authform_header(%param);
-    } elsif ($mode eq 'createcourse') {
-        my %param = ( formname => 'ccrs',
-                      kerb_def_dom => $krbdefdom,
-                      curr_authtype => $curr_authtype );
-        $authheader = &Apache::loncommon::authform_header(%param);
-    } elsif ($mode eq 'modifycourse') {
-        my %param = ( formname => 'cmod',
+    my ($mode,$krbdefdom,$curr_authtype,$curr_authfield,$domain,
+        $context,$permission,$groupslist)=@_;
+
+    my %param = (
                   kerb_def_dom => $krbdefdom,
-                  mode => 'modifycourse',
                   curr_authtype => $curr_authtype,
-                  curr_autharg => $curr_authfield );
-        $authheader = &Apache::loncommon::authform_header(%param);
+                );
+    if ($mode eq 'createuser') {
+        $param{'formname'} = 'cu';
+    } elsif ($mode eq 'upload') {
+        $param{'formname'} = 'studentform';
+    } elsif ($mode eq 'singlestudent') {
+        $param{'formname'} = 'cu';
+    } elsif ($mode eq 'createcourse') {
+        $param{'formname'} = 'ccrs';
+    } elsif ($mode eq 'modifycourse') {
+        $param{'formname'} = 'cmod';
+        $param{'mode'} = 'modifycourse',
+        $param{'curr_autharg'} = $curr_authfield;
+    }
+
+    my ($setsection_call,$setsections_js);
+    my $finish = "  vf.submit();\n";
+    if ($mode eq 'upload') {
+        if (($context eq 'course') || ($context eq 'domain')) {
+            if ($context eq 'course') {
+                if ($env{'request.course.sec'} eq '') {
+                    $setsection_call = 'setSections(document.'.$param{'formname'}.');';
+                    $setsections_js =
+                        &setsections_javascript($param{'formname'},$groupslist,
+                                                $mode);
+                } else {
+                    $setsection_call = "'ok'";
+                }
+            } elsif ($context eq 'domain') {
+                $setsection_call = 'setCourse()';
+                $setsections_js = &dc_setcourse_js($param{'formname'},$mode);
+            }
+            $finish = "  var checkSec = $setsection_call\n".
+                      "  if (checkSec == 'ok') {\n".
+                      "      vf.submit();\n".
+                      "   }\n";
+        }
     }
+    my $authheader = &Apache::loncommon::authform_header(%param);
 
     my %alert = &Apache::lonlocal::texthash
         (username => 'You need to specify the username field.',
@@ -358,8 +390,9 @@ sub javascript_validations {
          continue => 'Continue adding users?',
          );
 
-#    my $pjump_def = &Apache::lonhtmlcommon::pjump_javascript_definition();
     my $function_name =(<<END);
+$setsections_js
+
 function verify_message (vf,founduname,foundpwd,foundname,foundid,foundsec,foundemail) {
 END
     my ($authnum,%can_assign) =  &Apache::loncommon::get_assignable_auth($domain);
@@ -479,21 +512,21 @@ END
         message+= '\\n$alert{'continue'}';
         if (confirm(message)) {
             vf.state.value='enrolling';
-            vf.submit();
+            $finish
         }
     } else {
         vf.state.value='enrolling';
-        vf.submit();
+        $finish
     }
 }
 END
     }
     my $result = $function_name;
-    if ( ($mode eq 'auth') || ($mode eq 'createcourse') || ($mode eq 'modifycourse')  ) {
+    if ( ($mode eq 'upload') || ($mode eq 'createcourse') || ($mode eq 'modifycourse')  ) {
         $result .= $auth_checks;
     }
     $result .= $optional_checks."\n".$section_checks;
-    if ( ($mode eq 'auth') || ($mode eq 'createcourse') || ($mode eq 'modifycourse')  ) {
+    if ( ($mode eq 'upload') || ($mode eq 'createcourse') || ($mode eq 'modifycourse')  ) {
         $result .= $authheader;
     }
     return $result;
@@ -654,18 +687,12 @@ ENDPICK
 ###############################################################
 ###############################################################
 sub print_upload_manager_footer {
-    my ($r,$i,$keyfields,$defdom,$today,$halfyear,$context)=@_;
-    my $formname;
-    if ($context eq 'course') {
-        $formname = 'document.studentform';
-    } elsif ($context eq 'author') {
-        $formname = 'document.studentform';
-    } elsif ($context eq 'domain') {
-        $formname = 'document.studentform';
-    }
+    my ($r,$i,$keyfields,$defdom,$today,$halfyear,$context,$permission) = @_;
+    my $form = 'document.studentform';
+    my $formname = 'studentform';
     my ($krbdef,$krbdefdom) =
         &Apache::loncommon::get_kerberos_defaults($defdom);
-    my %param = ( formname => $formname,
+    my %param = ( formname => $form,
                   kerb_def_dom => $krbdefdom,
                   kerb_def_auth => $krbdef
                   );
@@ -677,8 +704,8 @@ sub print_upload_manager_footer {
     my $krbform = &Apache::loncommon::authform_kerberos(%param);
     my $intform = &Apache::loncommon::authform_internal(%param);
     my $locform = &Apache::loncommon::authform_local(%param);
-    my $date_table = &date_setting_table(undef,undef,$context);
-
+    my $date_table = &date_setting_table(undef,undef,$context,undef,
+                                         $formname,$permission);
     my $Str = "\n".'<div class="LC_left_float">';
     $Str .= &hidden_input('nfields',$i);
     $Str .= &hidden_input('keyfields',$keyfields);
@@ -719,21 +746,22 @@ sub print_upload_manager_footer {
         $Str .= '<br /><br /><b>'.&mt('Default role and/or section')."</b><br />\n".
                 &mt('Role and/or section for users without one in the uploaded file.');
     }
-    $Str .= '<br /><br />';
-    my ($options,$cb_script,$coursepick) = &default_role_selector($context,'defaultrole',1);
-    if ($context eq 'domain') {
-        $Str .= '<span class="LC_role_level">'.&mt('Domain Level').'</span><br />'.$options.'<br /><br /><span class="LC_role_level">'.&mt('Course Level').'</span><br />'.$cb_script.$coursepick;
-    } elsif ($context eq 'author') {
-        $Str .= $options;
+    $Str .= '<br />';
+    if (($context eq 'domain') || ($context eq 'author')) {
+        my ($options,$cb_script,$coursepick) = &default_role_selector($context,1);
+        if ($context eq 'domain') {
+            $Str .= '<span class="LC_role_level">'.&mt('Domain Level').'</span><br />'.$options.'<br /><br /><span class="LC_role_level">'.&mt('Course Level').'</span><br />'.$cb_script.$coursepick;
+        } elsif ($context eq 'author') {
+            $Str .= $options;
+        }
     } else {
-        $Str .= '<table><tr><td><span class="LC_nobreak"<b>'.&mt('role').':&nbsp;</b>'.
-                $options.'</span></td><td>&nbsp;</td><td><span class="LC_nobreak">'.
-                '<b>'.&mt('section').':&nbsp;</b><input type="text" name="section" value="" size="12" /></span></td></tr></table>';
-    }
-    if ($context eq 'course') {
-        $Str .= "<h3>".&mt('Full Update')."</h3>\n".
-                '<label><input type="checkbox" name="fullup" value="yes">'.
-                ' '.&mt('Full update (also print list of users not enrolled anymore)').
+        my ($cnum,$cdom) = &get_course_identity();
+        my $rowtitle = &mt('section');
+        my $secbox = &section_picker($cdom,$cnum,'Any',$rowtitle,
+                                     $permission,$context,'upload');
+        $Str .= $secbox."<h3>".&mt('Full Update')."</h3>\n".
+                '<p><label><input type="checkbox" name="fullup" value="yes">'.
+                ' '.&mt('Display students with current/future access, who are  not in the uploaded file.').'<br />'.&mt('Students selected from this list can be dropped.');
                 "</label></p>\n";
     }
     if ($context eq 'course' || $context eq 'domain') {
@@ -815,7 +843,8 @@ sub print_upload_manager_form {
     my ($krbdef,$krbdefdom) =
         &Apache::loncommon::get_kerberos_defaults($defdom);
     #
-    &print_upload_manager_header($r,$datatoken,$distotal,$krbdefdom,$context);
+    &print_upload_manager_header($r,$datatoken,$distotal,$krbdefdom,$context,
+                                 $permission);
     my $i;
     my $keyfields;
     if ($total>=0) {
@@ -849,11 +878,14 @@ sub print_upload_manager_form {
     }
     $r->print('</div>');
     &print_upload_manager_footer($r,$i,$keyfields,$defdom,$today,$halfyear,
-                                 $context);
+                                 $context,$permission);
 }
 
 sub setup_date_selectors {
-    my ($starttime,$endtime,$mode,$nolink) = @_;
+    my ($starttime,$endtime,$mode,$nolink,$formname) = @_;
+    if ($formname eq '') {
+        $formname = 'studentform';
+    }
     if (! defined($starttime)) {
         $starttime = time;
         unless ($mode eq 'create_enrolldates' || $mode eq 'create_defaultdates') {
@@ -876,11 +908,11 @@ sub setup_date_selectors {
     }
 
     my $startdateform = 
-        &Apache::lonhtmlcommon::date_setter('studentform','startdate',$starttime,
+        &Apache::lonhtmlcommon::date_setter($formname,'startdate',$starttime,
             undef,undef,undef,undef,undef,undef,undef,$nolink);
 
     my $enddateform = 
-        &Apache::lonhtmlcommon::date_setter('studentform','enddate',$endtime,
+        &Apache::lonhtmlcommon::date_setter($formname,'enddate',$endtime,
             undef,undef,undef,undef,undef,undef,undef,$nolink);
 
     if ($mode eq 'create_enrolldates') {
@@ -913,24 +945,27 @@ sub get_dates_from_form {
 }
 
 sub date_setting_table {
-    my ($starttime,$endtime,$mode,$bulkaction) = @_;
+    my ($starttime,$endtime,$mode,$bulkaction,$formname,$permission) = @_;
     my $nolink;
     if ($bulkaction) {
         $nolink = 1;
     }
     my ($startform,$endform) = 
-        &setup_date_selectors($starttime,$endtime,$mode,$nolink);
+        &setup_date_selectors($starttime,$endtime,$mode,$nolink,$formname);
     my $dateDefault;
     if ($mode eq 'create_enrolldates' || $mode eq 'create_defaultdates') {
         $dateDefault = '&nbsp;';
     } elsif ($mode ne 'author' && $mode ne 'domain') {
         if (($bulkaction eq 'reenable') || 
             ($bulkaction eq 'activate') || 
-            ($bulkaction eq 'chgdates')) { 
-            $dateDefault = '<span class="LC_nobreak">'.
-                '<label><input type="checkbox" name="makedatesdefault" /> '.
-                &mt('make these dates the default for future enrollment').
-                '</label></span>';
+            ($bulkaction eq 'chgdates') ||
+            ($env{'form.action'} eq 'upload')) {
+            if ($env{'request.course.sec'} eq '') {
+                $dateDefault = '<span class="LC_nobreak">'.
+                    '<label><input type="checkbox" name="makedatesdefault" /> '.
+                    &mt('make these dates the default access dates for future student enrollment').
+                    '</label></span>';
+            }
         }
     }
     my $perpetual = '<span class="LC_nobreak"><label><input type="checkbox" name="no_end_date"';
@@ -950,7 +985,7 @@ sub date_setting_table {
                                                      'LC_oddrow_value')."\n".
                $endform.'&nbsp;'.$perpetual.
                &Apache::lonhtmlcommon::row_closure(1).
-               &Apache::lonhtmlcommon::end_pick_box().'<br />';
+               &Apache::lonhtmlcommon::end_pick_box();
     if ($dateDefault) {
         $result .=  $dateDefault.'<br />'."\n";
     }
@@ -1011,33 +1046,36 @@ sub default_role_selector {
            $options .= '  <option value="'.$role.'">'.$plrole.'</option>';
         }
         my $courseform = &Apache::loncommon::selectcourse_link
-            ('studentform','defaultcourse','defaultdomain','defaultdesc',"$env{'request.role.domain'}",undef,'Course');
+            ('studentform','dccourse','dcdomain','coursedesc',"$env{'request.role.domain'}",undef,'Course');
         $cb_jscript = 
-            &Apache::loncommon::coursebrowser_javascript($env{'request.role.domain'},'defaultsec','studentform');
+            &Apache::loncommon::coursebrowser_javascript($env{'request.role.domain'},'currsec','studentform');
         $coursepick = &Apache::loncommon::start_data_table().
                       &Apache::loncommon::start_data_table_header_row().
                       '<th>'.$courseform.'</th><th>'.$lt{'rol'}.'</th>'.
                       '<th>'.$lt{'grs'}.'</th>'.
                       &Apache::loncommon::end_data_table_header_row().
                       &Apache::loncommon::start_data_table_row()."\n".
-                      '<td><input type="text" name="defaultdesc" value="" onFocus="this.blur();opencrsbrowser('."'studentform','defcourse','defdomain','coursedesc',''".')" /></td>'."\n".
+                      '<td><input type="text" name="coursedesc" value="" onFocus="this.blur();opencrsbrowser('."'studentform','dccourse','dcdomain','coursedesc',''".')" /></td>'."\n".
                       '<td><select name="courserole">'."\n".
                       &default_course_roles($context,$checkpriv,%customroles)."\n".
                       '</select></td><td>'.
                       '<table class="LC_createuser">'.
                       '<tr class="LC_section_row"><td valign"top">'.
-                      $lt{'exs'}.'<br /><select name="defaultsec">'.
+                      $lt{'exs'}.'<br /><select name="currsec">'.
                       ' <option value=""><--'.&mt('Pick course first').
                       '</select></td>'.
                       '<td>&nbsp;&nbsp;</td>'.
                       '<td valign="top">'.$lt{'new'}.'<br />'.
                       '<input type="text" name="newsec" value="" size="5" />'.
-                      '<input type="hidden" name="groups" value="" /></td>'.
-                      '</tr></table></td>'.
+                      '<input type="hidden" name="groups" value="" />'.
+                      '<input type="hidden" name="sections" value="" />'.
+                      '<input type="hidden" name="origdom" value="'.
+                      $env{'request.role.domain'}.'" />'.
+                      '<input type="hidden" name="dccourse" value="" />'.
+                      '<input type="hidden" name="dcdomain" value="" />'.
+                      '</td></tr></table></td>'.
                       &Apache::loncommon::end_data_table_row().
-                      &Apache::loncommon::end_data_table()."\n".
-                      '<input type="hidden" name="defaultcourse" value="" />'.
-                      '<input type="hidden" name="defaultdomain" value="" />';
+                      &Apache::loncommon::end_data_table()."\n";
     }
     $options .= '</select>';
     return ($options,$cb_jscript,$coursepick);
@@ -1049,15 +1087,18 @@ sub default_course_roles {
     my $custom = 1;
     my @roles = &course_roles($context,$checkpriv,$custom);
     foreach my $role (@roles) {
-        my $plrole=&Apache::lonnet::plaintext($role);
-        $output .= '  <option value="'.$role.'">'.$plrole.'</option>';
+        if ($role ne 'cr') {
+            my $plrole=&Apache::lonnet::plaintext($role);
+            $output .= '  <option value="'.$role.'">'.$plrole.'</option>';
+        }
     }
     if (keys(%customroles) > 0) {
-        my %customroles = &my_custom_roles();
-        foreach my $cust (sort(keys(%customroles))) {
-            my $custrole='cr_cr_'.$env{'user.domain'}.
-                '_'.$env{'user.name'}.'_'.$cust;
-            $output .= '  <option value="'.$custrole.'">'.$cust.'</option>';
+        if (grep(/^cr$/,@roles)) {
+            foreach my $cust (sort(keys(%customroles))) {
+                my $custrole='cr_'.$env{'user.domain'}.
+                             '_'.$env{'user.name'}.'_'.$cust;
+                $output .= '  <option value="'.$custrole.'">'.$cust.'</option>';
+            }
         }
     }
     return $output;
@@ -1108,10 +1149,10 @@ sub course_roles {
                     if (&Apache::lonnet::allowed('c'.$role,$env{'request.course.id'})) {
                         push(@roles,$role);
                     } else {
-                        if ($role ne 'cc' && $env{'request.course.section'} ne '') {
-                            if (!&Apache::lonnet::allowed('c'.$role,
+                        if ($role ne 'cc' && $env{'request.course.sec'} ne '') {
+                            if (&Apache::lonnet::allowed('c'.$role,
                                              $env{'request.course.id'}.'/'.
-                                             $env{'request.course.section'})) {
+                                             $env{'request.course.sec'})) {
                                 push(@roles,$role);
                             }
                         }
@@ -1236,15 +1277,15 @@ sub print_userlist {
             if ($role eq $env{'form.showrole'}) {
                 $roleselected = ' selected="selected" ';
             }
-            my $plrole=&Apache::lonnet::plaintext($role);
+            my $plrole;
+            if ($role eq 'cr') {
+                $plrole = &mt('Custom role');
+            } else {
+                $plrole=&Apache::lonnet::plaintext($role);
+            }
             $role_select .= '<option value="'.$role.'"'.$roleselected.'>'.$plrole.'</option>';
         }
-        $roleselected = '';
-        if ($env{'form.showrole'} eq 'cr') {
-            $roleselected = ' selected="selected" ';
-        }
-        $role_select .= '<option value="cr"'.$roleselected.'>'.&mt('Custom role').'</option>'.
-                        '</select>';
+        $role_select .= '</select>';
         $r->print('<label>'.&mt('Role: [_1]',$role_select).'</label>');
     }
     if (!(($context eq 'domain') && ($env{'form.roletype'} eq 'course'))) {
@@ -1275,9 +1316,11 @@ sub print_userlist {
     if ($context eq 'course') {
         my $classlist = &Apache::loncoursedata::get_classlist();
         my $secidx = &Apache::loncoursedata::CL_SECTION();
+        my $viewablesec = &viewable_section($permission);
         foreach my $student (keys(%{$classlist})) {
-            if (exists($permission->{'view_section'})) {
-                if ($classlist->{$student}[$secidx] ne $permission->{'view_section'}) {
+            my $section = $classlist->{$student}[$secidx];
+            if ($viewablesec ne '') {
+                if ($section ne $viewablesec) {
                     next;
                 } else {
                     $userlist{$student} = $classlist->{$student};
@@ -1286,7 +1329,7 @@ sub print_userlist {
                 $userlist{$student} = $classlist->{$student};
             }
         }
-        my $cid =$env{'request.course.id'};
+        my $cid = $env{'request.course.id'};
         my ($cnum,$cdom) = &get_course_identity($cid);
         my $showroles;
         if ($env{'form.showrole'} ne 'Any') {
@@ -1294,8 +1337,9 @@ sub print_userlist {
         } else {
             $showroles = undef;
         }
+        my $withsec = 1;
         my %advrolehash = &Apache::lonnet::get_my_roles($cnum,$cdom,undef,
-                                                        \@statuses,$showroles);
+                                    \@statuses,$showroles,undef,$withsec);
         &gather_userinfo($context,$format,\%userlist,$indexhash,\%userinfo,
                          \%advrolehash,$permission);
     } else {
@@ -1327,12 +1371,12 @@ sub print_userlist {
                         } else {
                             my @possroles;
                             if ($env{'form.showrole'} eq 'Any') {
-                                my @possroles = &roles_by_context($context);
+                                @possroles = &roles_by_context('author');
                             } else {
                                 @possroles = ($env{'form.showrole'}); 
                             }
                             foreach my $author (sort(keys(%{$dom_roles{$key}}))) {
-                                my ($role,$authorname,$authordom) = split(/:/,$author);
+                                my ($role,$authorname,$authordom) = split(/:/,$author,-1);
                                 my $extent = '/'.$authordom.'/'.$authorname;
                                 %{$coauthors{$extent}} =
                                     &Apache::lonnet::get_my_roles($authorname,
@@ -1348,8 +1392,6 @@ sub print_userlist {
                     my %courses = &process_coursepick();
                     my %allusers; 
                     foreach my $cid (keys(%courses)) {
-                        my %coursehash =
-                            &Apache::lonnet::coursedescription($cid,{'one_time' => 1});
                         my ($cnum,$cdom,$cdesc) = &get_course_identity($cid);
                         next if ($cnum eq '' || $cdom eq '');
                         my $custom = 1;
@@ -1357,7 +1399,6 @@ sub print_userlist {
                             %statushash);
                         if ($env{'form.showrole'} eq 'Any') {
                             @roles = &course_roles($context,undef,$custom);
-                            unshift(@roles,'cr');
                         } else {
                             @roles = ($env{'form.showrole'});
                         }
@@ -1433,13 +1474,21 @@ sub list_submit_button {
 sub gather_userinfo {
     my ($context,$format,$userlist,$indexhash,$userinfo,$rolehash,$permission) = @_;
     foreach my $item (keys(%{$rolehash})) {
-        @{$userlist->{$item}} = ();
         my %userdata;
-        if ($context eq 'author' || $context eq 'course') { 
+        if ($context eq 'author') { 
             ($userdata{'username'},$userdata{'domain'},$userdata{'role'}) =
                 split(/:/,$item);
             ($userdata{'start'},$userdata{'end'})=split(/:/,$rolehash->{$item});
             &build_user_record(\%userdata,$userinfo,$indexhash,$item,$userlist);
+        } elsif ($context eq 'course') {
+            my $viewablesec = &viewable_section($permission);
+            ($userdata{'username'},$userdata{'domain'},$userdata{'role'},
+             $userdata{'section'}) = split(/:/,$item,-1);
+            ($userdata{'start'},$userdata{'end'})=split(/:/,$rolehash->{$item});
+            if (($viewablesec ne '') && ($userdata{'section'} ne '')) {
+                next if ($viewablesec ne $userdata{'section'});
+            }
+            &build_user_record(\%userdata,$userinfo,$indexhash,$item,$userlist);
         } elsif ($context eq 'domain') {
             if ($env{'form.roletype'} eq 'domain') {
                 ($userdata{'role'},$userdata{'username'},$userdata{'domain'}) =
@@ -1754,10 +1803,10 @@ sub show_users_list {
     if (!grep(/^\Q$sortby\E$/,@sortable)) {
         $sortby = 'username';
     }
-    my $setting = $env{'form.roleaction'};
+    my $setting = $env{'form.roletype'};
     my ($cid,$cdom,$cnum,$classgroups,$displayphotos,$displayclickers);
     if ($context eq 'course') {
-        $cid=$env{'request.course.id'};
+        $cid = $env{'request.course.id'};
         ($cnum,$cdom) = &get_course_identity($cid);
         ($classgroups) = &Apache::loncoursedata::get_group_memberships(
                                      $userlist,$keylist,$cdom,$cnum);
@@ -2685,6 +2734,20 @@ sub results_header_row {
     }
     return $description;
 }
+
+sub viewable_section {
+    my ($permission) = @_;
+    my $viewablesec;
+    if (ref($permission) eq 'HASH') {
+        if (exists($permission->{'view_section'})) {
+            $viewablesec = $permission->{'view_section'};
+        } elsif (exists($permission->{'cusr_section'})) {
+            $viewablesec = $permission->{'cusr_section'};
+        }
+    }
+    return $viewablesec;
+}
+
     
 #################################################
 #################################################