1 files changed, 53 insertions, 0 deletions
diff --git a/yaksh/management/commands/create_moderator.py b/yaksh/management/commands/create_moderator.py
new file mode 100644
index 0000000..86489d5
--- /dev/null
+++ b/yaksh/management/commands/create_moderator.py
@@ -0,0 +1,53 @@
+'''
+   This command creates a moderator group and adds users to the moderator group
+   with permissions to add, change and delete
+   the objects in the exam app.
+'''
+
+# django imports
+from django.core.management.base import BaseCommand, CommandError
+from django.contrib.auth.models import User, Group, Permission
+from django.contrib.contenttypes.models import ContentType
+
+
+class Command(BaseCommand):
+    help = 'Adds users to the moderator group'
+
+    def add_arguments(self, parser):
+        # Positional arguments
+        parser.add_argument('usernames', nargs='*', type=str)
+
+    def handle(self, *args, **options):
+        app_label = 'yaksh'
+
+        try:
+            group = Group.objects.get(name='moderator')
+        except Group.DoesNotExist:
+            group = Group(name='moderator')
+            group.save()
+            # Get the models for the given app
+            content_types = ContentType.objects.filter(app_label=app_label)
+            # Get list of permissions for the models
+            permission_list = Permission.objects.filter(
+                content_type__in=content_types)
+            group.permissions.add(*permission_list)
+            group.save()
+            self.stdout.write('Moderator group added successfully')
+
+        if options['usernames']:
+            for uname in options['usernames']:
+                try:
+                    user = User.objects.get(username=uname)
+                except User.DoesNotExist:
+                    raise CommandError('User "{0}" does not exist'.format(
+                        uname)
+                    )
+                if user in group.user_set.all():
+                    self.stdout.write('User "{0}" is '
+                                      'already a Moderator'.format(uname)
+                                      )
+                else:
+                    group.user_set.add(user)
+                    self.stdout.write('Successfully added User "{0}"'
+                                      ' to Moderator group'.format(uname)
+                                      )