fix

reaction/serializers.py

@@ -4,23 +4,4 @@ from utils.api import serializers
 
 class SetReactionSerializer(serializers.Serializer):
     problem_id = serializers.IntegerField()
-    type = serializers.ChoiceField(choices=ReactionType.choices, required=False)
-    types = serializers.ListField(
-        child=serializers.ChoiceField(choices=ReactionType.choices),
-        required=False,
-        allow_empty=False,
-    )
-
-    def validate(self, attrs):
-        reaction_type = attrs.get("type")
-        legacy_types = list(dict.fromkeys(attrs.get("types", [])))
-
-        if len(legacy_types) > 1:
-            raise serializers.ValidationError({"types": "只能选择一个评价"})
-        if reaction_type is None and not legacy_types:
-            raise serializers.ValidationError({"type": "This field is required."})
-        if reaction_type is not None and legacy_types and reaction_type != legacy_types[0]:
-            raise serializers.ValidationError({"types": "新旧评价字段不一致"})
-
-        attrs["type"] = reaction_type or legacy_types[0]
-        return attrs
+    type = serializers.ChoiceField(choices=ReactionType.choices)

reaction/tests.py

@@ -11,29 +11,6 @@ class SetReactionSerializerTests(TestCase):
         self.assertTrue(serializer.is_valid(), serializer.errors)
         self.assertEqual(serializer.validated_data["type"], "learned")
 
-    def test_accepts_legacy_single_reaction(self):
-        serializer = SetReactionSerializer(data={"problem_id": 1, "types": ["learned"]})
-
-        self.assertTrue(serializer.is_valid(), serializer.errors)
-        self.assertEqual(serializer.validated_data["type"], "learned")
-
-    def test_accepts_matching_transition_fields(self):
-        serializer = SetReactionSerializer(data={"problem_id": 1, "type": "learned", "types": ["learned"]})
-
-        self.assertTrue(serializer.is_valid(), serializer.errors)
-
-    def test_rejects_multiple_legacy_reactions(self):
-        serializer = SetReactionSerializer(data={"problem_id": 1, "types": ["learned", "interesting"]})
-
-        self.assertFalse(serializer.is_valid())
-        self.assertIn("types", serializer.errors)
-
-    def test_rejects_mismatched_transition_fields(self):
-        serializer = SetReactionSerializer(data={"problem_id": 1, "type": "learned", "types": ["interesting"]})
-
-        self.assertFalse(serializer.is_valid())
-        self.assertIn("types", serializer.errors)
-
     def test_rejects_missing_reaction(self):
         serializer = SetReactionSerializer(data={"problem_id": 1})
 
@@ -53,4 +30,3 @@ class ReactionModelConstraintTests(TestCase):
 
         constraint = constraints["reaction_problem_user_unique"]
         self.assertEqual(tuple(constraint.fields), ("problem", "user"))
-        self.assertEqual(Reaction._meta.unique_together, ())

reaction/views/oj.py

@@ -23,8 +23,8 @@ class ReactionAPI(AsyncAPIView):
             return self.error("problem_id is required")
         mine = await Reaction.objects.filter(user=request.user, problem_id=problem_id).values_list("type", flat=True).afirst()
         if mine is None:
-            return self.success({"mine": [], "mine_type": None, "counts": None})
-        return self.success({"mine": [mine], "mine_type": mine, "counts": await self.get_counts(problem_id)})
+            return self.success({"mine": None, "counts": None})
+        return self.success({"mine": mine, "counts": await self.get_counts(problem_id)})
 
     @login_required
     @validate_serializer(SetReactionSerializer)
@@ -54,4 +54,4 @@ class ReactionAPI(AsyncAPIView):
             defaults={"type": reaction_type},
         )
 
-        return self.success({"mine": [reaction.type], "mine_type": reaction.type, "counts": await self.get_counts(problem.id)})
+        return self.success({"mine": reaction.type, "counts": await self.get_counts(problem.id)})