"solution"

cinema/models.py

@@ -27,13 +27,13 @@ class Actor(models.Model):
     first_name = models.CharField(max_length=255)
     last_name = models.CharField(max_length=255)
 
-    def __str__(self):
-        return f"{self.first_name} {self.last_name}"
-
     @property
     def full_name(self):
         return self.__str__()
 
+    def __str__(self):
+        return f"{self.first_name} {self.last_name}"
+
 
 class Movie(models.Model):
     title = models.CharField(max_length=255)

cinema/serializers.py

@@ -1,22 +1,26 @@
 from rest_framework import serializers
-from .models import Actor, CinemaHall, Genre, Movie, MovieSession, Order, Ticket
+from .models import Actor, CinemaHall, Genre, Movie, MovieSession, Order, \
+    Ticket
+
 
 class ActorSerializer(serializers.ModelSerializer):
     class Meta:
         model = Actor
-        fields = ["id", "first_name", "last_name"]
+        fields = ["id", "first_name", "last_name", "full_name"]
 
 
 class GenreSerializer(serializers.ModelSerializer):
     class Meta:
         model = Genre
         fields = ["id", "name"]
 
+
 class MovieSerializer(serializers.ModelSerializer):
     class Meta:
         model = Movie
         fields = ["id", "title", "description", "duration", "genres", "actors"]
 
+
 class MovieListSerializer(MovieSerializer):
     genres = serializers.SlugRelatedField(
         many=True, read_only=True, slug_field="name"
@@ -25,6 +29,7 @@ class MovieListSerializer(MovieSerializer):
         many=True, read_only=True, slug_field="full_name"
     )
 
+
 class MovieDetailSerializer(MovieSerializer):
     genres = GenreSerializer(many=True, read_only=True)
     actors = ActorSerializer(many=True, read_only=True)
@@ -33,13 +38,15 @@ class MovieDetailSerializer(MovieSerializer):
 class CinemaHallSerializer(serializers.ModelSerializer):
     class Meta:
         model = CinemaHall
-        fields = ["id", "name", "rows", "seats_in_row"]
+        fields = ["id", "name", "rows", "seats_in_row", "capacity"]
+
 
 class MovieSessionSerializer(serializers.ModelSerializer):
     class Meta:
         model = MovieSession
         fields = ["id", "show_time", "movie", "cinema_hall"]
 
+
 class MovieSessionListSerializer(MovieSessionSerializer):
     movie_title = serializers.CharField(source="movie.title", read_only=True)
     cinema_hall_name = serializers.CharField(
@@ -51,9 +58,10 @@ class MovieSessionListSerializer(MovieSessionSerializer):
 
     class Meta:
         model = MovieSession
-        exclude = ["movie", "cinema_hall"]
+        fields = ["id", "show_time", "movie_title", "cinema_hall_name",
+                  "cinema_hall_capacity"]
 
 
 class MovieSessionDetailSerializer(MovieSessionSerializer):
     movie = MovieListSerializer(read_only=True)
-    cinema_hall = CinemaHallSerializer(read_only=True)
+    cinema_hall = CinemaHallSerializer(read_only=True)

cinema/urls.py

@@ -2,14 +2,15 @@
 from rest_framework import routers
 from rest_framework.urls import app_name
 
-from cinema.views import GenreViewSet, ActorViewSet, CinemaHallViewSet, MovieViewSet, MovieSessionViewSet
+from cinema.views import GenreViewSet, ActorViewSet, CinemaHallViewSet, \
+    MovieViewSet, MovieSessionViewSet
 
 router = routers.DefaultRouter()
-router.register("genre", GenreViewSet)
-router.register("actor", ActorViewSet)
-router.register("cinema_hall", CinemaHallViewSet)
-router.register("movie", MovieViewSet)
-router.register("movie_session", MovieSessionViewSet)
+router.register("genres", GenreViewSet)
+router.register("actors", ActorViewSet)
+router.register("cinema_halls", CinemaHallViewSet)
+router.register("movies", MovieViewSet)
+router.register("movie_sessions", MovieSessionViewSet)
 
 urlpatterns = [
     path("", include(router.urls)),

cinema/views.py

@@ -10,14 +10,17 @@ class GenreViewSet(viewsets.ModelViewSet):
     queryset = Genre.objects.all()
     serializer_class = GenreSerializer
 
+
 class ActorViewSet(viewsets.ModelViewSet):
     queryset = Actor.objects.all()
     serializer_class = ActorSerializer
 
+
 class CinemaHallViewSet(viewsets.ModelViewSet):
     queryset = CinemaHall.objects.all()
     serializer_class = CinemaHallSerializer
 
+
 class MovieViewSet(viewsets.ModelViewSet):
     queryset = Movie.objects.prefetch_related("actors", "genres")
 
@@ -28,6 +31,7 @@ def get_serializer_class(self):
             return MovieDetailSerializer
         return MovieSerializer
 
+
 class MovieSessionViewSet(viewsets.ModelViewSet):
     queryset = MovieSession.objects.select_related("movie", "cinema_hall")