post.py

class PostSerializer(ModelSerializer):
	"""
	General post serializer.
	"""
	url = ReverseField(view_name='post-instance')
	channel = ChannelSerializer(read_only=True)
	user = UserInstanceSerializer(read_only=True)
	latest_comments = serializers.SerializerMethodField('get_latest_comments')
	comments_url = ReverseField(view_name='post-comment-list')
	channel_id = serializers.PrimaryKeyRelatedField(source='channel', write_only=True)
	user_id = serializers.PrimaryKeyRelatedField(source='user', write_only=True)

	class Meta():
		model = Post