feat(__init__): Bump version

requirements-test.txt

@@ -8,4 +8,4 @@ flake8>=2.1.0
 tox>=1.7.0
 
 djangorestframework==3.0.5
-django-taggit==0.12.2
+django-taggit==0.13.0

taggit_serializer/__init__.py

@@ -1 +1 @@
-__version__ = '0.1.1'
+__version__ = '0.1.2'

taggit_serializer/serializers.py

@@ -30,7 +30,12 @@ def update(self, object, validated_data):
     def _save_tags(self, tag_object, tags):
         for key in tags.keys():
             tag_values = tags.get(key)
-            [getattr(tag_object, key).add(tag) for tag in tag_values]
+            for tag in tag_values:
+                getattr(tag_object, key).add(tag)
+
+            for tag in tag_object.tags.names():
+                if tag not in tag_values:
+                    getattr(tag_object, key).remove(tag)
 
         return tag_object
 

tests/test_serializers.py

@@ -62,3 +62,21 @@ def test_taggit_serializer_create(self):
         test_model = serializer.save()
 
         assert len(test_model.tags.all()) == len(request_data.get('tags'))
+
+    def test_taggit_removes_tags(self):
+        """
+        Test if the old assigned tags are removed
+        """
+        test_model = TestModel.objects.create()
+        test_model.tags.add("1")
+
+        request_data = {
+            "tags": ["2", "3"]
+        }
+
+        serializer = TestModelSerializer(test_model, data=request_data)
+        serializer.is_valid()
+        test_model = serializer.save()
+
+        assert TestModel.objects.filter(tags__name__in=["1"]).count() == 0
+        assert TestModel.objects.filter(tags__name__in=["1", "2"]).count() == 1