How to serialize a model with many to maany relashionship?-CodePudding

I have this function in my model,

    def serialize(self):
        return {
            'id': self.id,
            'author': self.author.username,
            'text': self.text,
            'timestamp': self.timestamp.strftime("%b %d %Y, %I:%M %p"),
            'likes': self.likes.all(),
            'likes_number': len(self.likes.all()),
        }

but likes is actualy a many to many relashionship with User. How can I serialize it to get something like this?

    def serialize(self):
        return {
            'id': self.id,
            'author': self.author.username,
            'text': self.text,
            'timestamp': self.timestamp.strftime("%b %d %Y, %I:%M %p"),
            'likes': [
                    user1,
                    user2,
                    etc.
               ],
        }

So that I can also get rid of the 'likes number' property.

CodePudding user response：

You can use list comprehension to serialize your data, but using django rest framework's serializer is more proper.

 return {
        'id': self.id,
        'author': self.author.username,
        'text': self.text,
        'timestamp': self.timestamp.strftime("%b %d %Y, %I:%M %p"),
        'likes': [{'id':like.id,...} for like self.likes.all()],
        'likes_number': len(self.likes.all()),
    }