serializser working for tags but not single tags

products/serializers.py

@@ -3,14 +3,14 @@ from rest_framework import serializers
 from taggit_serializer.serializers import TagListSerializerField, TaggitSerializer
 from products.models import Product
 
-from utils.tag_serializers import SingleTagSerializerField
+from utils.tag_serializers import SingleTagSerializerField, CustomTagSerializer
 
 
-class ProductSerializer(TaggitSerializer, serializers.ModelSerializer):
+class ProductSerializer(CustomTagSerializer, serializers.ModelSerializer):
 
-    tags = TagListSerializerField( )
+    tags = TagListSerializerField(required=False)
-    category = SingleTagSerializerField() # main tag category
+    category = SingleTagSerializerField(required=False) # main tag category
-    attributes = TagListSerializerField()
+    attributes = TagListSerializerField(required=False)
 
     class Meta:
         model = Product

products/tests.py

@@ -116,9 +116,9 @@ class ProductViewSetTest(APITestCase):
             'update_date': datetime.datetime.now().isoformat()+'Z',
             'discount': '0.05',
             'stock': 22,
-            # tags = models.ManyToMany(Tag, null=True, blank=True )
+            'tags': ['tag1, tag2'],
-            # category = models.ForeignKey(Tag, null=true) # main tag category
+            # 'category': 'MayorTagCategory',
-            # attributes = models.ManyToMany(Tag, null=True, blank=True )
+            # 'attributes': ['color/red', 'size/xxl'],
             'identifiers': '34rf34f43c43',
         }
 
@@ -128,6 +128,7 @@ class ProductViewSetTest(APITestCase):
 
         # Query endpoint
         response = self.client.post(self.endpoint, data=data, format='json')
+        import ipdb; ipdb.set_trace()
 
         # Assert endpoint returns created status
         self.assertEqual(response.status_code, status.HTTP_201_CREATED)
@@ -160,9 +161,9 @@ class ProductViewSetTest(APITestCase):
             'update_date': datetime.datetime.now().isoformat()+'Z',
             'discount': '0.05',
             'stock': 22,
-            # tags = models.ManyToMany(Tag, null=True, blank=True )
+            'tags': ['tag1x, tag2x'],
-            # category = models.ForeignKey(Tag, null=true) # main tag category
+            'category': 'MayorTagCategory2',
-            # attributes = models.ManyToMany(Tag, null=True, blank=True )
+            'attributes': ['color/blue', 'size/m'],
             'identifiers': '34rf34f43c43',
         }
 

utils/tag_serializers.py

@@ -1,5 +1,6 @@
 from rest_framework import serializers
 
+from taggit_serializer.serializers import TagListSerializerField, TaggitSerializer
 
 
 class SingleTag(str):
@@ -37,3 +38,40 @@ class SingleTagSerializerField(serializers.Field):
                 value = value.name
             value = SingleTag(value)
         return value
+
+
+class CustomTagSerializer(serializers.Serializer):
+
+    def create(self, validated_data):
+        to_be_tagged, validated_data = self._pop_tags(validated_data)
+
+        tag_object = super(CustomTagSerializer, self).create(validated_data)
+
+        return self._save_tags(tag_object, to_be_tagged)
+
+    def update(self, instance, validated_data):
+        to_be_tagged, validated_data = self._pop_tags(validated_data)
+
+        tag_object = super(CustomTagSerializer, self).update(
+            instance, validated_data)
+
+        return self._save_tags(tag_object, to_be_tagged)
+
+    def _save_tags(self, tag_object, tags):
+        for key in tags.keys():
+            tag_values = tags.get(key)
+            getattr(tag_object, key).set(*tag_values)
+
+        return tag_object
+
+    def _pop_tags(self, validated_data):
+        to_be_tagged = {}
+        import ipdb; ipdb.set_trace()
+        for key in self.fields.keys():
+            field = self.fields[key]
+            if isinstance(field, TagListSerializerField):
+                if key in validated_data:
+                    to_be_tagged[key] = validated_data.pop(key)
+
+        return (to_be_tagged, validated_data)
+