[英]How can I get results from multiple models with Django REST Framework
I have some models : User/Like/Dislike... 我有一些型号:用户/喜欢/不喜欢...
class Like(models.Model):
""" Like """
user = models.ForeignKey(User)
movie_id = models.IntegerField()
created = models.DateTimeField(auto_now_add=True)
class Dislike(models.Model):
""" Dislike """
user = models.ForeignKey(User)
movie_id = models.IntegerField()
created = models.DateTimeField(auto_now_add=True)
How can I get results like this with Django REST Framework by movie_id list and current user? 如何通过movie_id列表和当前用户使用Django REST Framework获得类似结果?
movie_id = [11111,22222,33333,44444] movie_id = [11111,22222,33333,44444]
{
"results": [
{
"movie_id": 125405,
"like": True,
"dislike": False,
},
...
]
}
LikeSerializer: LikeSerializer:
class LikeSerializer(serializers.ModelSerializer):
user = UserSerializer(required=False)
class Meta:
model = Like
fields = ('id', 'user', 'movie_id', 'created')
class LikeViewSet(viewsets.ModelViewSet):
model = Like
serializer_class = LikeSerializer
permission_classes = (IsAuthenticated,)
DisLikeSerializer: DisLikeSerializer:
class DislikeSerializer(serializers.ModelSerializer):
user = UserSerializer(required=False)
class Meta:
model = Dislike
fields = ('id', 'user', 'movie_id', 'created')
class DislikeViewSet(viewsets.ModelViewSet):
model = Dislike
serializer_class = DislikeSerializer
permission_classes = (IsAuthenticated,)
Thanks... 谢谢...
You can add custom field to response . 您可以将自定义字段添加到响应。
Here we can't use like
. 在这里我们不能使用
like
。 as its reserved keyword in python . 作为python中的保留关键字。 See this code .
请参阅此代码。 implement same for dislike .
为不喜欢而实施同样的措施。
class LikeSerializer(serializers.ModelSerializer):
user = UserSerializer(required=False)
likes = serializers.SerializerMethodField('no_likes_get')
def no_likes_get(self, like_obj):
return Like.objects.filter(movie_id = like_obj.movie_id).count()
class Meta:
model = Like
fields = ('id', 'user', 'movie_id', 'likes')
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