CODEWITHSUNDEEP
djangodjango-rest-framework
User34
User34

Reputation: 425

How update relation fiels in DjangoRestFramework

I recently began to learn DRF library, I do not understand how in this example make method update in AlbumSerializer to save foreign key. Thank you in advance.

Upvotes: 1

Views: 49

Answers (1)

zaidfazil
zaidfazil

Reputation: 9235

It's basic example serializer, but if you need a suggestion, then this may help you. A simple update method for the serializer,

def update(self, instance, validated_data):
    tracks = validated_data.pop('tracks')
    instance.album_name = validated_data.get('title', instance.album_name)
    instance.artist = validated_data.get('artist', instance.artist)
    instance.save()
    for track in tracks:
        new_track = Track.objects.get(album=instance, order=track['order'])
        new_track.title = track.get('title', new_track.title)
        new_track.duration = track.get('duration', new_track.duration)
        new_track.save()
    return instance

Upvotes: 1

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