python - Django Rest Framework: Implementing Many-to-Many relationship in Serializer -

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

models.py

from django.db import models   class genres(models.model):     genre = models.charfield(max_length = 128, unique = true)  class movies(models.model):     popularity = models.floatfield()     director = models.charfield(max_length = 128)     genres = models.manytomanyfield(genres, related_name = 'movies')     imdb_score = models.floatfield()     movie_name = models.charfield(max_length = 500) 

now, in application, each genre can have multiple movie instances , vice versa. result, there many-to-many relationship between genres model , movies model. want allow admin chose multiple genres particular movie while posting new movies instances @ api endpoint.

serializers.py

from shoppy.models import movies, genres rest_framework import serializers   class genresserializer(serializers.modelserializer):      class meta:         model = genres  class moviesserializer(serializers.modelserializer):       class meta:         model = movies         fields = ('popularity', 'director', 'imdb_score', 'genres',                         'movie_name') 

views.py

from shoppy.models import movies rest_framework import viewsets shoppy.serializers import moviesserializer   class movieviewset(viewsets.modelviewset):     """     api endpoint allows users viewed or edited.     """     queryset = movies.objects.all()     serializer_class = moviesserializer 

urls.py

from django.conf.urls import url, include rest_framework import routers shoppy import views  router = routers.defaultrouter() router.register(r'movies', views.movieviewset) # wire our api using automatic url routing. # additionally, include login urls browsable api. urlpatterns = [     url(r'^', include(router.urls)),     url(r'^api-auth/', include('rest_framework.urls', namespace='rest_framework')) ] 

however, i'm encountering following error:

exception type: operationalerror @ /movies/ exception value: no such table: shoppy_genres 

what seems wrong code?