[LON-CAPA-cvs] cvs: loncom /interface loncreateuser.pm

raeburn raeburn@source.lon-capa.org
Thu, 05 Feb 2009 12:19:50 -0000


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--raeburn1233836390
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raeburn		Thu Feb  5 12:19:50 2009 EDT

  Modified files:              
    /loncom/interface	loncreateuser.pm 
  Log:
  - Bug 5558
  - Where self-enrollment requests require approval ...
    - "Enrollment Requests" Link added to Manage Course Users menu
    - &display_selfenroll_queue() generates table of pending self-enrollment requests requiring approval or rejection.  
   -  &update_selfenroll_queue() enrolls approved requests
       - removes processed requests from queue
       - sends message to requestor with enrollment decision
       - sends messages to Course Coordinators on self-enrollment approvals notification list.
  
  
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Index: loncom/interface/loncreateuser.pm
diff -u loncom/interface/loncreateuser.pm:1.276 loncom/interface/loncreateuser.pm:1.277
--- loncom/interface/loncreateuser.pm:1.276	Tue Feb  3 05:28:00 2009
+++ loncom/interface/loncreateuser.pm	Thu Feb  5 12:19:50 2009
@@ -1,7 +1,7 @@
 # The LearningOnline Network with CAPA
 # Create a user
 #
-# $Id: loncreateuser.pm,v 1.276 2009/02/03 05:28:00 raeburn Exp $
+# $Id: loncreateuser.pm,v 1.277 2009/02/05 12:19:50 raeburn Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -68,6 +68,7 @@
 use Apache::lonlocal;
 use Apache::longroup;
 use Apache::lonuserutils;
+use Apache::selfenroll();
 use LONCAPA qw(:DEFAULT :match);
 
 my $loginscript; # piece of javascript used in two separate instances
@@ -3409,6 +3410,29 @@
             &update_selfenroll_config($r,$context,$permission);
         }
         $r->print(&Apache::loncommon::end_page());
+    } elsif ($env{'form.action'} eq 'selfenrollqueue') {
+        $r->print(&header());
+        &Apache::lonhtmlcommon::add_breadcrumb
+            ({href=>'/adm/createuser?action=selfenrollqueue',
+              text=>"Enrollment requests"});
+        my $cid = $env{'request.course.id'};
+        my $cdom = $env{'course.'.$cid.'.domain'};
+        my $cnum = $env{'course.'.$cid.'.num'};
+        if (!exists($env{'form.state'})) {
+            $r->print(&Apache::lonhtmlcommon::breadcrumbs('Enrollment requests',
+                                                          'Course_SelfEnrollment_Approval'));
+            $r->print('<h3>'.&mt('Pending enrollment requests').'</h3>'."\n");
+            &display_selfenroll_queue($r,$context,$permission,$cnum,$cdom);
+        } elsif ($env{'form.state'} eq 'done') {
+            &Apache::lonhtmlcommon::add_breadcrumb
+            ({href=>'/adm/createuser?action=selfenrollqueue',
+              text=>"Result"});
+            $r->print(&Apache::lonhtmlcommon::breadcrumbs('Enrollment result',
+                                                          'Course_Self_Enrollment'));
+            $r->print('<h3>'.&mt('Enrollment request processing').'</h3>'."\n");
+            &update_selfenroll_queue($r,$context,$permission,$cid,$cnum,$cdom);
+        }
+        $r->print(&Apache::loncommon::end_page());
     } elsif ($env{'form.action'} eq 'changelogs') {
         $r->print(&header());
         &Apache::lonhtmlcommon::add_breadcrumb
@@ -3551,6 +3575,16 @@
 			permission => $permission->{'custom'},
 			linktitle => 'Configure a custom role.',
         	});
+        if ($env{'course.'.$env{'request.course.id'}.'.internal.selfenroll_approval'}) {
+            push(@{ $menu[1]->{items} },
+                    {   linktext => 'Enrollment Requests',
+                        icon => 'selfenrl-queue.png',
+                        #help => 'Course_Approve_Selfenroll',
+                        url => '/adm/createuser?action=selfenrollqueue',
+                        permission => $permission->{'cusr'},
+                        linktitle =>'Approve or reject enrollment requests.',
+                });
+        }
 		
         if (!exists($permission->{'cusr_section'})){
         	
@@ -3982,7 +4016,7 @@
                     }
                 }
                 if (@ccs) {
-                    $output .= '<br />'.&mt('Personnel to be notified when a self-enrollment request needs approval, or has been approved:').'&nbsp;'.&Apache::loncommon::start_data_table().
+                    $output .= '<br />'.&mt('Personnel to be notified when an enrollment request needs approval, or has been approved:').'&nbsp;'.&Apache::loncommon::start_data_table().
                                &Apache::loncommon::start_data_table_row();
                     my $count = 0;
                     my $numcols = 4;
@@ -4053,6 +4087,238 @@
     return;
 }
 
+sub display_selfenroll_queue {
+    my ($r,$context,$permission,$cnum,$cdom) = @_;
+    my $namespace = 'selfenrollrequests';
+    my ($output,%queue_by_date);
+    my %requesthash = &Apache::lonnet::dump($namespace,$cdom,$cnum);
+    if (keys(%requesthash) > 0) {
+        $r->print('<form method="post" name="changequeue" action="/adm/createuser" />'.
+                  '<input type="hidden" name="action" value="'.$env{'form.action'}.'" />'.
+                  '<input type="hidden" name="state" value="done" />'.
+                  &Apache::loncommon::start_data_table().
+                  &Apache::loncommon::start_data_table_header_row().
+                  '<th>'.&mt('Action').'</th>'.
+                  '<th>'.&mt('Requestor').'</th>'.
+                  '<th>'.&mt('Section').'</th>'.
+                  '<th>'.&mt('Date requested').'</th>'.
+                  &Apache::loncommon::end_data_table_header_row());
+        foreach my $item (keys(%requesthash)) {
+            my ($timestamp,$usec) = split(/:/,$requesthash{$item});
+            if (exists($queue_by_date{$timestamp})) {
+                if (ref($queue_by_date{$timestamp}) eq 'ARRAY') {
+                    push(@{$queue_by_date{$timestamp}},$item.':'.$usec);
+                }
+            } else {
+                @{$queue_by_date{$timestamp}} = ($item.':'.$usec);
+            }
+        }
+        my @sortedtimes = sort {$a <=> $b} (keys(%queue_by_date));
+        my $count = 0;
+        foreach my $item (@sortedtimes) {
+            if (ref($queue_by_date{$item}) eq 'ARRAY') {
+                foreach my $request (sort(@{$queue_by_date{$item}})) {
+                    my ($puname,$pudom,$pusec) = split(/:/,$request);
+                    my $showsec = $pusec;
+                    if ($showsec eq '') {
+                        $showsec = &mt('none');
+                    }
+                    my $namelink = &Apache::loncommon::aboutmewrapper(
+                                     &Apache::loncommon::plainname($puname,$pudom),
+                                     $puname,$pudom);
+                    $r->print(&Apache::loncommon::start_data_table_row().
+                              '<td><span class="LC_nobreak"><label>'.
+                              '<input type="checkbox" value="'.$count.':'.$puname.':'.$pudom.':'.$pusec.'" name="approvereq" />'.&mt('Approve').'</label></span><br />'.
+                              '<span class="LC_nobreak"><label>'.
+                              '<input type="checkbox" value="'.$puname.':'.$pudom.'" name="rejectreq" />'.&mt('Reject').'</label></span><br /></td>'.
+                              '<td>'.$namelink.'</td>'.
+                              '<td>'.$showsec.'</td>'.
+                              '<td>'.&Apache::lonlocal::locallocaltime($item).'</td>'.
+                              &Apache::loncommon::end_data_table_row());
+                    $count ++;
+                }
+            }
+        }
+        $r->print(&Apache::loncommon::end_data_table().
+                  '<input type="submit" name="processqueue" value="'.&mt('Save').'" /></form>');
+    } else {
+        $r->print(&mt('There are currently no enrollment requests.'));  
+    }
+    return;
+}
+
+sub update_selfenroll_queue {
+    my ($r,$context,$permission,$cid,$cnum,$cdom) = @_;
+    my @approvals = &Apache::loncommon::get_env_multiple('form.approvereq');
+    my @rejections = &Apache::loncommon::get_env_multiple('form.rejectreq');
+    my $access_start =  $env{'course.'.$cid.'.internal.selfenroll_start_access'};
+    my $access_end =  $env{'course.'.$cid.'.internal.selfenroll_end_access'};
+    my $limit = $env{'course.'.$cid.'.internal.selfenroll_limit'}; 
+    my $cap = $env{'course.'.$cid.'.internal.selfenroll_cap'};
+    my $notifylist = $env{'course.'.$cid.'.internal.selfenroll_notifylist'};
+    my $namespace = 'selfenrollrequests';
+    my ($stucounts,$idx,$classlist) = &get_student_counts($cdom,$cnum);
+    my %requesthash = &Apache::lonnet::dump($namespace,$cdom,$cnum);
+    my $coursedesc = $env{'course.'.$cid.'.description'};
+    my $chome = &Apache::lonnet::homeserver($cnum,$cdom);
+    my $hostname = &Apache::lonnet::hostname($chome);
+    my $protocol = $Apache::lonnet::protocol{$chome};
+    $protocol = 'http' if ($protocol ne 'https');
+    my (@existing,@missingreq,@invalidusers,@limitexceeded,@enrolled,@enrollerrors,);
+    my $now = time;
+    my $sender = $env{'user.name'}.':'.$env{'user.domain'};
+    my $approvedmsg = [{
+                        mt => 'Your request for enrollment has been approved.',
+                      },
+                      {
+                        mt => 'Visit [_1], to log-in and access the course',
+                        args => [$protocol.'://'.$hostname],
+                      }];
+                      
+    my $rejectedmsg =  [{
+                         mt => 'Your request for enrollment has not been approved.',
+                       }];
+    foreach my $item (sort {$a <=> $b} @approvals) {
+        my ($num,$uname,$udom,$usec) = split(/:/,$item);
+        my $uhome = &Apache::lonnet::homeserver($uname,$udom);
+        if ($uhome ne 'no_host') {
+            if (exists($requesthash{$uname.':'.$udom})) {
+               
+                if (exists($classlist->{$uname.':'.$udom})) {
+                    if (ref($classlist->{$uname.':'.$udom}) eq 'ARRAY') {
+                        if (($classlist->{$uname.':'.$udom}->[$idx->{'status'}] eq 'Active') ||
+                            ($classlist->{$uname.':'.$udom}->[$idx->{'status'}] eq 'Future')) {
+                            push(@existing,$uname.':'.$udom);
+                            next;
+                        }
+                    }
+                }
+            } else {
+                push(@missingreq,$uname.':'.$udom);
+                next;
+            }
+            if (!grep(/^\Q$item\E$/,@rejections)) {
+                if ($limit eq 'allstudents') {
+                    if ($stucounts->{$limit} >= $cap) {
+                        push(@limitexceeded,$uname.':'.$udom);
+                        last;
+                    }
+                } elsif ($limit eq 'selfenrolled') {
+                    if ($stucounts->{$limit} >= $cap) {
+                        push(@limitexceeded,$uname.':'.$udom);
+                        last;
+                    }
+                }
+                my $result = 
+                    &Apache::lonnet::modify_student_enrollment($udom,$uname,undef,undef,undef,undef,undef,$usec,$access_end,$access_start,'selfenroll',undef,$cdom.'_'.$cnum,1);
+                if ($result eq 'ok') {
+                    push(@enrolled,$uname.':'.$udom);
+                    $stucounts->{'allstudents'} ++;
+                    $stucounts->{'selfenrolled'} ++;
+                    &Apache::selfenroll::send_notification($uname.':'.$udom,$approvedmsg,$cid,
+                                               $coursedesc,$now,'enroller',$sender);
+                } else {
+                    push(@enrollerrors,$uname.':'.$udom);
+                }
+            }
+        } else {
+            push(@invalidusers,$uname.':'.$udom);
+        }
+    }
+    my @changes = (@enrolled,@rejections);
+    if (@rejections) {
+        foreach my $user (@rejections) {
+            &Apache::selfenroll::send_notification($user,$rejectedmsg,$cid,
+                                                   $coursedesc,$now,'enroller',$sender);
+        }
+    }
+    if (@changes) {
+        my $delresult = &Apache::lonnet::del($namespace,\@changes,$cdom,$cnum);
+        if ($delresult eq 'ok') {
+            my $namelink = 
+                &Apache::loncommon::plainname($env{'user.name'},$env{'user.domain'}).' ('.$env{'user.name'}.':'.$env{'user.domain'}.')';
+            my $chgmsg = "'Action was taken on the following enrollment requests by [_1].',$namelink";
+            my ($approvedlist,$rejectedlist);
+            if (@enrolled) { 
+                $approvedlist = join("\n",@enrolled);
+                $r->print('<p>'.&mt('The following were enrolled in the course:').'<ul>');
+                foreach my $user (@enrolled) {
+                    my ($uname,$udom) = split(/:/,$user); 
+                    my $userlink = 
+                        &Apache::loncommon::aboutmewrapper(&Apache::loncommon::plainname($uname,$udom),$uname,$udom);
+                    $r->print('<li>'.$userlink.'</li>');
+                }
+                $r->print('</ul></p>');
+            }
+            if (@rejections) {
+                $rejectedlist = join("\n",@rejections);
+                $r->print('<p>'.&mt('The following enrollment requests were rejected:').'<ul>');
+                foreach my $user (@rejections) {
+                    $r->print('<li>'.$user.'</li>');
+                }
+                $r->print('</ul></p>');
+            }
+            &Apache::selfenroll::send_notification($notifylist,$chgmsg,$cid,
+                                                   $coursedesc,$now,'managers',
+                                                   $sender,$approvedlist,$rejectedlist);
+        }
+    }
+    if (@existing) {
+        $r->print('<p>'.&mt('The following enrollment requests were deleted because the user is already enrolled in the course:').'<ul>');
+        foreach my $user (@existing) {
+            $r->print('<li>'.$user.'</li>');
+        }
+        $r->print('</ul></p>');
+    }
+    if (@missingreq) {
+        $r->print('<p>'.&mt('The following enrollment requests were ignored because the request is no longer in the enrollment queue:').'<ul>');
+        foreach my $user (@missingreq) {
+            $r->print('<li>'.$user.'</li>');
+        }
+        $r->print('</ul></p>');
+    }
+    if (@invalidusers) {
+        $r->print('<p>'.&mt('The following enrollment requests were deleted because the requestor does not have a LON-CAPA account:').'<ul>');
+        foreach my $user (@invalidusers) {
+            $r->print('<li>'.$user.'</li>');
+        }
+        $r->print('</ul></p>');
+    }
+    if (@limitexceeded) {
+        $r->print('<p>'.&mt('The following enrollment requests were skipped because the enrollment limit has been reached for the course:').'<ul>');
+        foreach my $user (@limitexceeded) {
+            $r->print('<li>'.$user.'</li>');
+        }
+        $r->print('</ul></p>');
+    }
+    if (@enrollerrors) {
+        $r->print('<p>'.&mt('The following enrollment requests could not be processed because an error occurred:').'<ul>');
+        foreach my $user (@enrollerrors) {
+            $r->print('<li>'.$user.'</li>');
+        }
+        $r->print('</ul></p>');
+    }
+    return;
+}
+
+sub get_student_counts {
+    my ($cdom,$cnum) = @_;
+    my (%idx,%stucounts);
+    my $classlist = &Apache::loncoursedata::get_classlist($cdom,$cnum);
+    $idx{'type'} = &Apache::loncoursedata::CL_TYPE();
+    $idx{'status'} = &Apache::loncoursedata::CL_STATUS();
+    while (my ($student,$data) = each(%$classlist)) {
+        if (($data->[$idx{'status'}] eq 'Active') ||
+            ($data->[$idx{'status'}] eq 'Future')) {
+            if ($data->[$idx{'type'}] eq 'selfenroll') {
+                $stucounts{'selfenroll'} ++;
+            }
+            $stucounts{'allstudents'} ++;
+        }
+    }
+    return (\%stucounts,\%idx,$classlist);
+}
+
 sub visible_in_cat {
     my ($cdom,$cnum) = @_;
     my %domconf = &Apache::lonnet::get_dom('configuration',['coursecategories'],$cdom);
@@ -5438,9 +5704,9 @@
                             }
                             $r->print('<li>'.&mt('"[_1]" set to "[_2]".',$title,$newval));
                             if ($newnotify) {
-                                $r->print('<br />'.&mt('The following will be notified when a self-enrollment request needs approval, or has been approved: [_1].',$newnotify));
+                                $r->print('<br />'.&mt('The following will be notified when an enrollment request needs approval, or has been approved: [_1].',$newnotify));
                             } else {
-                                $r->print('<br />'.&mt('No notifications sent when a self-enrollment request needs approval, or has been approved.'));
+                                $r->print('<br />'.&mt('No notifications sent when an enrollment request needs approval, or has been approved.'));
                             }
                             $r->print('</li>'."\n");
                         }

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