Adds new role and permissions

bookwyrm/migrations/0168_auto_20221205_2331.py

@@ -0,0 +1,59 @@
+""" I added two new permission types and a new group to the management command that
+creates the database on install, this creates them for existing instances """
+# Generated by Django 3.2.16 on 2022-12-05 23:31
+
+from django.db import migrations
+
+
+def create_groups_and_perms(apps, schema_editor):
+    """create the new "owner" group and "system admin" permission"""
+    db_alias = schema_editor.connection.alias
+    group_model = apps.get_model("auth", "Group")
+    # Add the "owner" group, if needed
+    owner_group, group_created = group_model.objects.using(db_alias).get_or_create(
+        name="owner"
+    )
+
+    # Create perms, if needed
+    user_model = apps.get_model("bookwyrm", "User")
+    content_type_model = apps.get_model("contenttypes", "ContentType")
+    content_type = content_type_model.objects.get_for_model(user_model)
+    perms_model = apps.get_model("auth", "Permission")
+    _, perm_created = perms_model.objects.using(db_alias).get_or_create(
+        codename="manage_registration",
+        name="allow or prevent user registration",
+        content_type=content_type,
+    )
+    _, admin_perm_created = perms_model.objects.using(db_alias).get_or_create(
+        codename="system_administration",
+        name="technical controls",
+        content_type=content_type,
+    )
+
+    # Add perms to the group if anything was created
+    if group_created or perm_created or admin_perm_created or True:
+        perms = [
+            "manage_registration",
+            "system_administration",
+            "edit_instance_settings",
+            "set_user_group",
+            "control_federation",
+            "create_invites",
+            "moderate_user",
+            "moderate_post",
+            "edit_book",
+        ]
+        owner_group.permissions.set(
+            perms_model.objects.using(db_alias).filter(codename__in=perms).all()
+        )
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ("bookwyrm", "0167_auto_20221125_1900"),
+    ]
+
+    operations = [
+        migrations.RunPython(create_groups_and_perms, migrations.RunPython.noop)
+    ]