Can we select which object to return from serializer[many=true] based on condition

[aryaraj132]

Lets suppose i have a model Post with field such as

Model Post
- Name :  TextField
- Body : TextField
- isPrivate : Boolean

Now the query post_obj = Post.objects.all() return 10 objects which is passed to getPostDataSerializer()

class getPostDataSerializer(serializers.ModelSerializer):
    permission_set = serializers.SerializerMethodField()
    class Meta:
        model = Galaxy
        fields =  ("Name","Body")
    def get_permission_set():
        permissions = some_other_serializer_which_gives_us_permission().data
        return set(permissions)

we have

post_data = getPostDataSerializer(post_obj,many=True).data

which returns name, body and permission_set of all 10 objects but i want to receive data of only those posts which have certain permissions which is extracted in serializer itself

Please help