[FIXED] How to Remove Duplicates Values after Merging Different Model Querysets in Django

Issue

how to remove duplicates after merging two different models like this

import itertools

events_list = list(itertools.chain(events_list, speakers_list))

I am getting duplicate values in the Django REST serializer

Solution

You can use union(); here is doc about union()

qs1.union(qs2)
# no duplicates

By default, union()only gives you distinct values. If you want to allow duplicates, you use

qs1.union(qs2, all=True)
# allow duplicates

Answered By - ha-neul