Update

cinema/serializers.py

@@ -60,7 +60,30 @@ def update(self, instance, validated_data):
         return instance
 
 
-class MovieSerializer(serializers.ModelSerializer):
-    class Meta:
-        model = Movie
-        fields = "__all__"
+class MovieSerializer(serializers.Serializer):
+    id = serializers.IntegerField(read_only=True)
+    title = serializers.CharField(max_length=255)
+    description = serializers.CharField()
+    duration = serializers.IntegerField()
+    actors = serializers.PrimaryKeyRelatedField(
+        queryset=Actor.objects.all(),
+        many=True
+    )
+    genres = serializers.PrimaryKeyRelatedField(
+        queryset=Genre.objects.all(),
+        many=True
+    )
+
+    def create(self, validated_data):
+        return Movie.objects.create(**validated_data)
+
+    def update(self, instance, validated_data):
+        instance.title = validated_data.get("title", instance.title)
+        instance.description = validated_data.get(
+            "description", instance.description
+        )
+        instance.duration = validated_data.get("duration", instance.duration)
+
+        instance.save()
+
+        return instance