fix: fix duplicated-error not being parsed correctly

Author: joaodaher

drf_kit/exceptions.py

@@ -16,7 +16,7 @@ def __init__(self, serializer, integrity_error):
         self.engine = self._get_engine(integrity_error=self.integrity_error)
         self.constraints, self.values = self._parse_error()
 
-        model_name = {self.model.__class__.__name__}
+        model_name = self.model.__name__
         violation = " and ".join([f"{constraint}={value}" for constraint, value in zip(self.constraints, self.values)])
         message = f"A {model_name} with `{violation}` already exists."
         super().__init__(message=message, code=status.HTTP_409_CONFLICT)

pyproject.toml

@@ -1,6 +1,6 @@
 [tool.poetry]
 name = "drf-kit"
-version = "1.7.0"
+version = "1.7.1"
 description = "DRF Toolkit"
 authors = ["eduK <pd@eduk.com>"]
 packages = [

test_app/tests/tests_views/test_bulk_views.py

@@ -24,6 +24,8 @@ def test_post_endpoint_with_existing(self):
             response = self.client.post(url, data=data, format="json")
 
         self.assertEqual(409, response.status_code)
+        expected = "A House with `id=42` already exists."
+        self.assertResponseMatch(expected=expected, received=response.json()["errors"])
 
         houses = models.House.objects.all()
         self.assertEqual(4, houses.count())

test_app/tests/tests_views/tests_crud_views.py

@@ -14,13 +14,13 @@ def setUp(self):
         super().setUp()
         self.houses = self._set_up_houses()
 
-    def _simulate_integrity_error(self):
+    def _simulate_integrity_error(self, constraint="(id)=(42)"):
         # IntegrityError by duplicate key is a very rare exception because the serializer
         # validators pre-check before committing them to the database
         # Then we have to simulate this error happening
         klass_name = "drf_kit.serializers.BaseModelSerializer.create"
         error = IntegrityError(
-            "duplicate key value violates unique constraint potato\n" "DETAIL:  Key (id)=(42) already exists."
+            "duplicate key value violates unique constraint potato\n" f"DETAIL:  Key {constraint} already exists."
         )
         return patch(klass_name, side_effect=error)
 
@@ -83,6 +83,8 @@ def test_post_endpoint_with_existing(self):
             response = self.client.post(url, data=data)
 
         self.assertEqual(409, response.status_code)
+        expected = "A House with `id=42` already exists."
+        self.assertResponseMatch(expected=expected, received=response.json()["errors"])
 
         houses = models.House.objects.all()
         self.assertEqual(4, houses.count())