class-based views

cinema/migrations/0002_actor_cinemahall_genre_movie_actors_movie_genres.py

@@ -0,0 +1,47 @@
+# Generated by Django 4.1 on 2023-11-28 19:14
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('cinema', '0001_initial'),
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name='Actor',
+            fields=[
+                ('id', models.BigAutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('firs_name', models.CharField(max_length=255)),
+                ('last_name', models.CharField(max_length=255)),
+            ],
+        ),
+        migrations.CreateModel(
+            name='CinemaHall',
+            fields=[
+                ('id', models.BigAutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('name', models.CharField(max_length=255)),
+                ('rows', models.IntegerField()),
+                ('seats_in_row', models.IntegerField()),
+            ],
+        ),
+        migrations.CreateModel(
+            name='Genre',
+            fields=[
+                ('id', models.BigAutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('name', models.CharField(max_length=255, unique=True)),
+            ],
+        ),
+        migrations.AddField(
+            model_name='movie',
+            name='actors',
+            field=models.ManyToManyField(to='cinema.actor'),
+        ),
+        migrations.AddField(
+            model_name='movie',
+            name='genres',
+            field=models.ManyToManyField(to='cinema.genre'),
+        ),
+    ]

cinema/migrations/0003_rename_firs_name_actor_first_name.py

@@ -0,0 +1,18 @@
+# Generated by Django 4.1 on 2023-11-28 19:15
+
+from django.db import migrations
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('cinema', '0002_actor_cinemahall_genre_movie_actors_movie_genres'),
+    ]
+
+    operations = [
+        migrations.RenameField(
+            model_name='actor',
+            old_name='firs_name',
+            new_name='first_name',
+        ),
+    ]

cinema/migrations/0004_alter_movie_actors_alter_movie_genres.py

@@ -0,0 +1,23 @@
+# Generated by Django 4.1 on 2023-11-30 19:13
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('cinema', '0003_rename_firs_name_actor_first_name'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='movie',
+            name='actors',
+            field=models.ManyToManyField(related_name='movies', to='cinema.actor'),
+        ),
+        migrations.AlterField(
+            model_name='movie',
+            name='genres',
+            field=models.ManyToManyField(related_name='movies', to='cinema.genre'),
+        ),
+    ]

cinema/models.py

@@ -5,6 +5,23 @@ class Movie(models.Model):
     title = models.CharField(max_length=255)
     description = models.TextField()
     duration = models.IntegerField()
+    actors = models.ManyToManyField("Actor", related_name="movies")
+    genres = models.ManyToManyField("Genre", related_name="movies")
 
-    def __str__(self):
+    def __str__(self) -> str:
         return self.title
+
+
+class Genre(models.Model):
+    name = models.CharField(max_length=255, unique=True)
+
+
+class Actor(models.Model):
+    first_name = models.CharField(max_length=255)
+    last_name = models.CharField(max_length=255)
+
+
+class CinemaHall(models.Model):
+    name = models.CharField(max_length=255)
+    rows = models.IntegerField()
+    seats_in_row = models.IntegerField()

cinema/serializers.py

@@ -1,24 +1,29 @@
 from rest_framework import serializers
+from cinema.models import Movie, Genre, Actor, CinemaHall
 
-from cinema.models import Movie
 
+class GenreSerializer(serializers.ModelSerializer):
+    class Meta:
+        model = Genre
+        fields = "__all__"
 
-class MovieSerializer(serializers.Serializer):
-    id = serializers.IntegerField(read_only=True)
-    title = serializers.CharField(max_length=255)
-    description = serializers.CharField()
-    duration = serializers.IntegerField()
 
-    def create(self, validated_data):
-        return Movie.objects.create(**validated_data)
+class ActorSerializer(serializers.ModelSerializer):
+    class Meta:
+        model = Actor
+        fields = "__all__"
 
-    def update(self, instance, validated_data):
-        instance.title = validated_data.get("title", instance.title)
-        instance.description = validated_data.get(
-            "description", instance.description
-        )
-        instance.duration = validated_data.get("duration", instance.duration)
 
-        instance.save()
+class CinemaHallSerializer(serializers.ModelSerializer):
+    class Meta:
+        model = CinemaHall
+        fields = "__all__"
 
-        return instance
+
+class MovieSerializer(serializers.ModelSerializer):
+    actors = ActorSerializer(many=True, read_only=True)
+    genres = GenreSerializer(many=True, read_only=True)
+
+    class Meta:
+        model = Movie
+        fields = ["id", "title", "description", "duration", "actors", "genres"]

cinema/urls.py

@@ -1,10 +1,46 @@
-from django.urls import path
+from django.urls import path, include
+from rest_framework import routers
 
-from cinema.views import movie_list, movie_detail
+from cinema.views import (GenreList,
+                          GenreDetail,
+                          ActorList,
+                          ActorDetail,
+                          CinemaHallViewSet,
+                          MovieViewSet)
+
+router = routers.DefaultRouter()
+router.register("movies", MovieViewSet)
+
+cinema_hall_list = CinemaHallViewSet.as_view(
+    actions={"get": "list", "post": "create"}
+)
+cinema_hall_detail = CinemaHallViewSet.as_view(
+    actions={"get": "retrieve",
+             "put": "update",
+             "patch": "partial_update",
+             "delete": "destroy"}
+)
 
 urlpatterns = [
-    path("movies/", movie_list, name="movie-list"),
-    path("movies/<int:pk>/", movie_detail, name="movie-detail"),
+    path("", include(router.urls)),
+    path("genres/",
+         GenreList.as_view(),
+         name="genre-list"),
+    path("genres/<int:pk>/",
+         GenreDetail.as_view(),
+         name="genre-detail"),
+    path("actors/",
+         ActorList.as_view(),
+         name="actor-list"),
+    path("actors/<int:pk>/",
+         ActorDetail.as_view(),
+         name="actor-detail"),
+    path("cinema_halls/",
+         cinema_hall_list,
+         name="cinema-hall-list"),
+    path("cinema_halls/<int:pk>/",
+         cinema_hall_detail,
+         name="cinema-hall-detail"),
 ]
 
 app_name = "cinema"

cinema/views.py

@@ -1,45 +1,113 @@
-from rest_framework.decorators import api_view
+from django.http import Http404
 from rest_framework.response import Response
-from rest_framework import status
+from rest_framework import status, mixins, generics, viewsets
 
-from django.shortcuts import get_object_or_404
+from rest_framework.views import APIView
 
-from cinema.models import Movie
-from cinema.serializers import MovieSerializer
+from cinema.models import Movie, Genre, Actor, CinemaHall
+from cinema.serializers import (MovieSerializer,
+                                GenreSerializer,
+                                ActorSerializer,
+                                CinemaHallSerializer)
 
 
-@api_view(["GET", "POST"])
-def movie_list(request):
-    if request.method == "GET":
-        movies = Movie.objects.all()
-        serializer = MovieSerializer(movies, many=True)
+class GenreList(APIView):
+    def get(self, request):
+        genre = Genre.objects.all()
+        serializer = GenreSerializer(genre, many=True)
         return Response(serializer.data, status=status.HTTP_200_OK)
 
-    if request.method == "POST":
-        serializer = MovieSerializer(data=request.data)
+    def post(self, request):
+        serializer = GenreSerializer(data=request.data)
+
         if serializer.is_valid():
             serializer.save()
             return Response(serializer.data, status=status.HTTP_201_CREATED)
 
         return Response(serializer.errors, status=status.HTTP_400_BAD_REQUEST)
 
 
-@api_view(["GET", "PUT", "DELETE"])
-def movie_detail(request, pk):
-    movie = get_object_or_404(Movie, pk=pk)
+class GenreDetail(APIView):
+    def get_object(self, pk):
+        try:
+            return Genre.objects.get(pk=pk)
+        except Genre.DoesNotExist:
+            raise Http404
 
-    if request.method == "GET":
-        serializer = MovieSerializer(movie)
+    def get(self, request, pk):
+        genre = self.get_object(pk)
+        serializer = GenreSerializer(genre)
         return Response(serializer.data, status=status.HTTP_200_OK)
 
-    if request.method == "PUT":
-        serializer = MovieSerializer(movie, data=request.data)
+    def patch(self, request, pk):
+        genre = self.get_object(pk)
+        serializer = GenreSerializer(genre, data=request.data, partial=True)
+
         if serializer.is_valid():
             serializer.save()
             return Response(serializer.data, status=status.HTTP_200_OK)
 
         return Response(serializer.errors, status=status.HTTP_400_BAD_REQUEST)
 
-    if request.method == "DELETE":
-        movie.delete()
+    def put(self, request, pk):
+        genre = self.get_object(pk)
+        serializer = GenreSerializer(genre, data=request.data)
+
+        if serializer.is_valid():
+            serializer.save()
+            return Response(serializer.data)
+
+        return Response(serializer.errors, status=status.HTTP_400_BAD_REQUEST)
+
+    def delete(self, request, pk):
+        genre = self.get_object(pk)
+        genre.delete()
         return Response(status=status.HTTP_204_NO_CONTENT)
+
+
+class ActorList(mixins.ListModelMixin,
+                mixins.CreateModelMixin,
+                generics.GenericAPIView):
+    queryset = Actor.objects.all()
+    serializer_class = ActorSerializer
+
+    def get(self, request, *args, **kwargs):
+        return self.list(request, *args, **kwargs)
+
+    def post(self, request, *args, **kwargs):
+        return self.create(request, *args, **kwargs)
+
+
+class ActorDetail(mixins.RetrieveModelMixin,
+                  mixins.UpdateModelMixin,
+                  mixins.DestroyModelMixin,
+                  generics.GenericAPIView):
+    queryset = Actor.objects.all()
+    serializer_class = ActorSerializer
+
+    def get(self, request, *args, **kwargs):
+        return self.retrieve(request, *args, **kwargs)
+
+    def put(self, request, *args, **kwargs):
+        return self.update(request, *args, **kwargs)
+
+    def patch(self, request, *args, **kwargs):
+        return self.partial_update(request, *args, **kwargs)
+
+    def delete(self, request, *args, **kwargs):
+        return self.destroy(request, *args, **kwargs)
+
+
+class CinemaHallViewSet(viewsets.GenericViewSet,
+                        mixins.UpdateModelMixin,
+                        mixins.RetrieveModelMixin,
+                        mixins.DestroyModelMixin,
+                        mixins.ListModelMixin,
+                        mixins.CreateModelMixin):
+    queryset = CinemaHall.objects.all()
+    serializer_class = CinemaHallSerializer
+
+
+class MovieViewSet(viewsets.ModelViewSet):
+    queryset = Movie.objects.all()
+    serializer_class = MovieSerializer

requirements.txt

@@ -1,7 +1,13 @@
-django==4.1
+asgiref==3.7.2
+Django==4.1
+django-debug-toolbar==3.2.4
+djangorestframework==3.13.1
 flake8==5.0.4
 flake8-quotes==3.3.1
 flake8-variables-names==0.0.5
+mccabe==0.7.0
 pep8-naming==0.13.2
-django-debug-toolbar==3.2.4
-djangorestframework==3.13.1
+pycodestyle==2.9.1
+pyflakes==2.5.0
+pytz==2023.3.post1
+sqlparse==0.4.4