Complete project with serializers and views(API, Generic and ViewSet)

.gitignore

@@ -7,4 +7,4 @@ venv/
 .pytest_cache/
 **__pycache__/
 *.pyc
-db.sqlite3
+db.sqlite3git

cinema/migrations/0002_actor_cinemahall_genre_movie_actors_movie_genres.py

@@ -0,0 +1,47 @@
+# Generated by Django 4.1 on 2024-12-22 17:50
+
+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')),
+                ('first_name', models.CharField(max_length=50)),
+                ('last_name', models.CharField(max_length=50)),
+            ],
+        ),
+        migrations.CreateModel(
+            name='CinemaHall',
+            fields=[
+                ('id', models.BigAutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('name', models.CharField(max_length=100)),
+                ('rows', models.PositiveIntegerField()),
+                ('seats_in_row', models.PositiveIntegerField()),
+            ],
+        ),
+        migrations.CreateModel(
+            name='Genre',
+            fields=[
+                ('id', models.BigAutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('name', models.CharField(max_length=100, 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/models.py

@@ -1,10 +1,36 @@
 from django.db import models
 
 
+class Actor(models.Model):
+    first_name = models.CharField(max_length=50)
+    last_name = models.CharField(max_length=50)
+
+    def __str__(self):
+        return f"{self.first_name} {self.last_name}"
+
+
+class Genre(models.Model):
+    name = models.CharField(max_length=100, unique=True)
+
+    def __str__(self):
+        return self.name
+
+
+class CinemaHall(models.Model):
+    name = models.CharField(max_length=100)
+    rows = models.PositiveIntegerField()
+    seats_in_row = models.PositiveIntegerField()
+
+    def __str__(self):
+        return self.name
+
+
 class Movie(models.Model):
     title = models.CharField(max_length=255)
     description = models.TextField()
     duration = models.IntegerField()
+    actors = models.ManyToManyField(Actor)
+    genres = models.ManyToManyField(Genre)
 
     def __str__(self):
         return self.title

cinema/serializers.py

@@ -1,6 +1,5 @@
 from rest_framework import serializers
-
-from cinema.models import Movie
+from cinema.models import Movie, Actor, Genre, CinemaHall
 
 
 class MovieSerializer(serializers.Serializer):
@@ -22,3 +21,60 @@ def update(self, instance, validated_data):
         instance.save()
 
         return instance
+
+
+class ActorSerializer(serializers.Serializer):
+    id = serializers.IntegerField(read_only=True)
+    first_name = serializers.CharField(max_length=255)
+    last_name = serializers.CharField(max_length=255)
+
+    def create(self, validated_data):
+        return Actor.objects.create(**validated_data)
+
+    def update(self, instance, validated_data):
+        instance.first_name = validated_data.get(
+            "first_name", instance.first_name
+        )
+        instance.last_name = validated_data.get(
+            "last_name", instance.last_name
+        )
+
+        instance.save()
+
+        return instance
+
+
+class GenreSerializer(serializers.Serializer):
+    id = serializers.IntegerField(read_only=True)
+    name = serializers.CharField(max_length=255, required=True)
+
+    def create(self, validated_data):
+        return Genre.objects.create(**validated_data)
+
+    def update(self, instance, validated_data):
+        instance.name = validated_data.get("name", instance.name)
+
+        instance.save()
+
+        return instance
+
+
+class CinemaHallSerializer(serializers.Serializer):
+    id = serializers.IntegerField(read_only=True)
+    name = serializers.CharField(max_length=255, required=True)
+    rows = serializers.IntegerField(required=True)
+    seats_in_row = serializers.IntegerField(required=True)
+
+    def create(self, validated_data):
+        return CinemaHall.objects.create(**validated_data)
+
+    def update(self, instance, validated_data):
+        instance.name = validated_data.get("name", instance.name)
+        instance.rows = validated_data.get("rows", instance.rows)
+        instance.seats_in_row = validated_data.get(
+            "seats_in_row", instance.seats_in_row
+        )
+
+        instance.save()
+
+        return instance

cinema/urls.py

@@ -1,10 +1,24 @@
-from django.urls import path
+from django.urls import path, include
+from rest_framework.routers import DefaultRouter
+from cinema.views import (
+    GenreList,
+    GenreDetail,
+    CinemaHallViewSet,
+    MovieViewSet,
+    ActorList,
+    ActorDetail,
+)
 
-from cinema.views import movie_list, movie_detail
+router = DefaultRouter()
+router.register("cinema_halls", CinemaHallViewSet, basename="cinema_hall")
+router.register("movies", MovieViewSet, basename="movie")
 
 urlpatterns = [
-    path("movies/", movie_list, name="movie-list"),
-    path("movies/<int:pk>/", movie_detail, name="movie-detail"),
+    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("", include(router.urls)),
 ]
 
 app_name = "cinema"

cinema/views.py

@@ -1,45 +1,124 @@
-from rest_framework.decorators import api_view
+from django.http import Http404
+from rest_framework.generics import (
+    RetrieveAPIView,
+    CreateAPIView,
+    UpdateAPIView,
+    DestroyAPIView, GenericAPIView,
+)
+from rest_framework.mixins import (
+    ListModelMixin,
+    CreateModelMixin,
+    RetrieveModelMixin,
+    UpdateModelMixin,
+    DestroyModelMixin
+)
 from rest_framework.response import Response
 from rest_framework import status
+from rest_framework.views import APIView
+from rest_framework.viewsets import GenericViewSet, ModelViewSet
 
-from django.shortcuts import get_object_or_404
+from cinema.models import Movie, Genre, Actor, CinemaHall
+from cinema.serializers import MovieSerializer, GenreSerializer, ActorSerializer, CinemaHallSerializer
 
-from cinema.models import Movie
-from cinema.serializers import MovieSerializer
 
+class GenreList(APIView):
+    def get(self, request):
+        genres = Genre.objects.all()
+        serializer = GenreSerializer(genres, many=True)
+        return Response(serializer.data)
 
-@api_view(["GET", "POST"])
-def movie_list(request):
-    if request.method == "GET":
-        movies = Movie.objects.all()
-        serializer = MovieSerializer(movies, 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)
-        return Response(serializer.data, status=status.HTTP_200_OK)
+    def get(self, request, pk):
+        genre = self.get_object(pk)
+        serializer = GenreSerializer(genre)
+        return Response(serializer.data)
 
-    if request.method == "PUT":
-        serializer = MovieSerializer(movie, data=request.data)
+    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, status=status.HTTP_200_OK)
-
+            return Response(serializer.data)
         return Response(serializer.errors, status=status.HTTP_400_BAD_REQUEST)
 
-    if request.method == "DELETE":
-        movie.delete()
+    def putch(self, request, pk):
+        genre = self.get_object(pk)
+        serializer = GenreSerializer(genre, data=request.data, partial=True)
+        serializer.is_valid(raise_exception=True)
+        serializer.save()
+        return Response(serializer.data, status=status.HTTP_200_OK)
+
+    def delete(self, request, pk):
+        genre = self.get_object(pk)
+        genre.delete()
         return Response(status=status.HTTP_204_NO_CONTENT)
+
+
+class ActorDetail(
+    CreateAPIView,
+    RetrieveAPIView,
+    UpdateAPIView,
+    DestroyAPIView,
+):
+    queryset = Actor.objects.all()
+    serializer_class = ActorSerializer
+
+
+class ActorList(
+    GenericAPIView,
+    ListModelMixin,
+    CreateModelMixin,
+    RetrieveModelMixin,
+    UpdateModelMixin,
+    DestroyModelMixin
+):
+    queryset = Actor.objects.all()
+    serializer_class = ActorSerializer
+
+    def get(self, request, *args, **kwargs):
+        if "pk" in kwargs:
+            return self.retrieve(request, *args, **kwargs)
+        return self.list(request, *args, **kwargs)
+
+    def post(self, request, *args, **kwargs):
+        return self.create(request, *args, **kwargs)
+
+    def put(self, request, *args, **kwargs):
+        return self.update(request, *args, **kwargs)
+
+    def delete(self, request, *args, **kwargs):
+        return self.destroy(request, *args, **kwargs)
+
+    def patch(self, request, *args, **kwargs):
+        return self.partial_update(request, *args, **kwargs)
+
+
+class CinemaHallViewSet(
+    GenericViewSet,
+    ListModelMixin,
+    CreateModelMixin,
+    RetrieveModelMixin,
+    UpdateModelMixin,
+    DestroyModelMixin
+):
+    queryset = CinemaHall.objects.all()
+    serializer_class = CinemaHallSerializer
+
+
+class MovieViewSet(ModelViewSet):
+    queryset = Movie.objects.all()
+    serializer_class = MovieSerializer