SOME ABEBE

services/backend/apps/task/validators.py

@@ -0,0 +1,24 @@
+from django.core.exceptions import ValidationError
+from pydantic import BaseModel
+from pydantic import ValidationError as PydanticValidationError
+
+
+class Criteria(BaseModel):
+    name: str
+    slug: str
+    max_value: int
+    min_value: int
+
+
+class ContestTaskCriteriesValidator:
+    def __call__(self, instance):
+        if instance.criterties and not isinstance(instance.criterties, list):
+            err = "criteries must be a valid dictionary"
+            raise ValidationError(err)
+
+        try:
+            for criteria in instance.criterties:
+                Criteria(**criteria)
+        except PydanticValidationError:
+            err = "invalid criteries data"
+            raise ValidationError(err)