Fix serializer fields

api/v1/serializers/content.py

@@ -97,12 +97,14 @@ class TextCreateSerializer(serializers.ModelSerializer):
             'lesson',
             'title',
             'position',
+            'type',
             'created_at',
             'update_at',
         ) + ('txt',)
 
         read_only_fields = (
             'id',
+            'type',
             'created_at',
             'update_at',
         )
@@ -128,12 +130,14 @@ class ImageTextCreateSerializer(serializers.ModelSerializer):
             'position',
             'img',
             'txt',
+            'type',
             'created_at',
             'update_at',
         )
 
         read_only_fields = (
             'id',
+            'type',
             'created_at',
             'update_at',
         )
@@ -157,12 +161,14 @@ class VideoCreateSerializer(serializers.ModelSerializer):
             'lesson',
             'title',
             'position',
+            'type',
             'created_at',
             'update_at',
         ) + ('url',)
 
         read_only_fields = (
             'id',
+            'type',
             'created_at',
             'update_at',
         )
@@ -211,12 +217,14 @@ class GallerySerializer(serializers.ModelSerializer):
             'title',
             'position',
             'gallery_images',
+            'type',
             'created_at',
             'update_at',
         )
 
         read_only_fields = (
             'id',
+            'type',
             'created_at',
             'update_at',
         )