Command 'add_group' created for adding the moderator group

2 files changed, 33 insertions, 29 deletions

diff --git a/testapp/exam/fixtures/initial_fixture.json b/testapp/exam/fixtures/initial_fixture.json
deleted file mode 100644
index e1b49b7..0000000
--- a/testapp/exam/fixtures/initial_fixture.json
+++ /dev/null
@@ -1,29 +0,0 @@
-[
-    {
-        "fields": {
-            "name": "moderator",
-            "permissions": [
-                31,
-                37,
-                43,
-                32,
-                38,
-                44,
-                33,
-                39,
-                45,
-                34,
-                40,
-                46,
-                35,
-                41,
-                47,
-                36,
-                42,
-                48
-            ]
-        },
-        "model": "auth.group",
-        "pk": 1
-    }
-]
diff --git a/testapp/exam/management/commands/add_group.py b/testapp/exam/management/commands/add_group.py
new file mode 100644
index 0000000..e6ac888
--- /dev/null
+++ b/testapp/exam/management/commands/add_group.py
@@ -0,0 +1,33 @@
+'''
+   This command adds moderator group with permissions to add, change and delete
+   the objects in the exam app.
+   We can modify this command to add more groups by providing arguments.
+   Arguments like group-name, app-name can be passed.
+
+'''
+# django imports
+from django.core.management.base import BaseCommand, CommandError
+from django.contrib.auth.models import Group, Permission
+from django.contrib.contenttypes.models import ContentType
+from django.db.utils import IntegrityError
+
+class Command(BaseCommand):
+    help = 'Adds the moderator group'
+
+    def handle(self, *args, **options):
+        app = 'exam'
+        group = Group(name='moderator')
+        try:
+            group.save()
+        except IntegrityError:
+            raise CommandError("The group already exits")
+        else:
+            # Get the models for the given app
+            content_types = ContentType.objects.filter(app_label=app)
+            # Get list of permissions for the models
+            permission_list = Permission.objects.filter(content_type=content_types)
+            for permission in permission_list:
+                group.permissions.add(permission)
+                group.save()
+
+        self.stdout.write('Moderator group added successfully')