python - Django Rest Framework: Including multiple choice fields in Serializer -

i'm using django rest framework create custom api movies model defined follows:

models.py

from django.db import models  class movies(models.model):     popularity = models.floatfield()     director = models.charfield(max_length = 128)     genre_choices = (('adventure', 'adventure'), ('family', 'family'), ('fantasy', 'fantasy'),                         ('musical', 'musical'), ('sci-fi', 'sci-fi'), ('drama', 'drama'), ('war', 'war'),                             ('romance', 'romance'), ('comedy', 'comedy'), ('thriller', 'thriller'),                                 ('crime', 'crime'), ('horror', 'horror'), ('history', 'history'), ('family', 'family'),                                     ('animation', 'animation'), ('short', 'short'), ('western', 'western'),                                         ('action', 'action'), ('biography', 'biography'))     genre = models.charfield(max_length = 128, choices = genre_choices)     imdb_score = models.floatfield()     movie_name = models.charfield(max_length = 500) 

now, want allow admin of application enter new instances of movies model api. want genre field multiple choice field, i.e. admin should able select more 1 genres particular movie.

serializers.py

from shoppy.models import movies rest_framework import serializers   class moviesserializer(serializers.modelserializer):     #genre = serializers.charfield(max_length = 128, choices = movies.genre_choices)      class meta:         model = movies         fields = ('popularity', 'director', 'genre', 'imdb_score',                         'movie_name') 

however, @ api endpoint, admin able select 1 genre given list of choices. know if working forms, how have implemented multiple choices checkbox:

genre = forms.charfield(max_length = 1230, widget=forms.checkboxselectmultiple(                                                     choices=movies.genre_choices)) 

how implement multiple choice fields in serializers, admin chose more 1 genre in api endpoint?

the root issue model:

genre = models.charfield(max_length=128, choices=genre_choices) 

your model allows store single value in column hence drf (django rest framework) enforces same restrictions in api. if want users able select multiple genres, easiest solution introduce genres model movies have m2m relationship:

class genres(models.model):     genre = models.charfield(unique=true)  class movies(models.model):     genres = manytomanyfield(genres, related_name='movies')