From 9cbe6ef95b5f4a603e95a4da4a924ee6f8ec8d22 Mon Sep 17 00:00:00 2001 From: Yaroslav Bordovoy Date: Sun, 8 Dec 2024 19:01:57 +0200 Subject: [PATCH] Solution --- cinema/migrations/0001_initial.py | 30 ------- cinema/models.py | 29 +++++++ cinema/serializers.py | 72 ++++++++++++++++- cinema/urls.py | 43 +++++++++- cinema/views.py | 126 +++++++++++++++++++++++------- 5 files changed, 236 insertions(+), 64 deletions(-) delete mode 100644 cinema/migrations/0001_initial.py diff --git a/cinema/migrations/0001_initial.py b/cinema/migrations/0001_initial.py deleted file mode 100644 index 514947a64..000000000 --- a/cinema/migrations/0001_initial.py +++ /dev/null @@ -1,30 +0,0 @@ -# Generated by Django 4.0.2 on 2022-05-03 13:41 - -from django.db import migrations, models - - -class Migration(migrations.Migration): - - initial = True - - dependencies = [] - - operations = [ - migrations.CreateModel( - name="Movie", - fields=[ - ( - "id", - models.BigAutoField( - auto_created=True, - primary_key=True, - serialize=False, - verbose_name="ID", - ), - ), - ("title", models.CharField(max_length=255)), - ("description", models.TextField()), - ("duration", models.IntegerField()), - ], - ), - ] diff --git a/cinema/models.py b/cinema/models.py index cc477513f..82a262775 100644 --- a/cinema/models.py +++ b/cinema/models.py @@ -5,6 +5,35 @@ 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): return self.title + + +class Actor(models.Model): + first_name = models.CharField(max_length=255) + last_name = models.CharField(max_length=255) + + def __str__(self) -> str: + return f"{self.first_name} {self.last_name}" + + +class Genre(models.Model): + name = models.CharField(max_length=255, unique=True) + + def __str__(self) -> str: + return self.name + + +class CinemaHall(models.Model): + name = models.CharField(max_length=255) + rows = models.PositiveIntegerField() + seats_in_row = models.PositiveIntegerField() + + def __str__(self) -> str: + return self.name diff --git a/cinema/serializers.py b/cinema/serializers.py index 050db5771..d2b8a25fc 100644 --- a/cinema/serializers.py +++ b/cinema/serializers.py @@ -1,10 +1,13 @@ from rest_framework import serializers +from rest_framework.validators import UniqueValidator -from cinema.models import Movie +from cinema.models import Movie, Actor, Genre, CinemaHall + +ID = serializers.IntegerField(read_only=True) class MovieSerializer(serializers.Serializer): - id = serializers.IntegerField(read_only=True) + id = ID title = serializers.CharField(max_length=255) description = serializers.CharField() duration = serializers.IntegerField() @@ -22,3 +25,68 @@ def update(self, instance, validated_data): instance.save() return instance + + +class ActorSerializer(serializers.Serializer): + id = ID + 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 = ID + name = serializers.CharField( + max_length=255, + validators=[ + UniqueValidator(queryset=Genre.objects.all()) + ] + ) + + 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 = ID + name = serializers.CharField(max_length=255) + rows = serializers.IntegerField() + seats_in_row = serializers.IntegerField() + + 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 diff --git a/cinema/urls.py b/cinema/urls.py index 1ae7d5cb0..5c95a924f 100644 --- a/cinema/urls.py +++ b/cinema/urls.py @@ -1,10 +1,45 @@ -from django.urls import path +from django.urls import path, include +from rest_framework import routers + + +from cinema.views import ( + GenreList, + GenreDetail, + ActorList, + ActorDetail, + CinemaHallViewSet, + 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", + } +) + +router = routers.DefaultRouter() +router.register("movies", MovieViewSet) -from cinema.views import movie_list, movie_detail urlpatterns = [ - path("movies/", movie_list, name="movie-list"), - path("movies//", movie_detail, name="movie-detail"), + path("", include(router.urls)), + path("genres/", GenreList.as_view(), name="genre-list"), + path("genres//", GenreDetail.as_view(), name="genre-detail"), + path("actors/", ActorList.as_view(), name="actor-list"), + path("actors//", ActorDetail.as_view(), name="actor-detail"), + path("cinema_halls/", cinema_hall_list, name="cinema-hall-list"), + path( + "cinema_halls//", + cinema_hall_detail, + name="cinema-hall-detail" + ), ] app_name = "cinema" diff --git a/cinema/views.py b/cinema/views.py index 78ba8a79c..9302f2810 100644 --- a/cinema/views.py +++ b/cinema/views.py @@ -1,45 +1,115 @@ -from rest_framework.decorators import api_view from rest_framework.response import Response -from rest_framework import status +from rest_framework import status, generics, mixins, viewsets from django.shortcuts import get_object_or_404 +from rest_framework.views import APIView +from rest_framework.viewsets import ModelViewSet -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) -> Response: + genres = Genre.objects.all() + serializer = GenreSerializer(genres, many=True) + return Response(serializer.data, status=status.HTTP_200_OK) - if request.method == "POST": - serializer = MovieSerializer(data=request.data) - if serializer.is_valid(): - serializer.save() - return Response(serializer.data, status=status.HTTP_201_CREATED) + def post(self, request) -> Response: + serializer = GenreSerializer(data=request.data) + serializer.is_valid(raise_exception=True) + serializer.save() + + return Response(serializer.data, status=status.HTTP_201_CREATED) + - return Response(serializer.errors, status=status.HTTP_400_BAD_REQUEST) +class GenreDetail(APIView): + def get_object(self, pk: int) -> Genre | None: + return get_object_or_404(Genre, pk=pk) + def get(self, request, pk: int) -> Response: + genre = self.get_object(pk=pk) + serializer = GenreSerializer(genre) -@api_view(["GET", "PUT", "DELETE"]) -def movie_detail(request, pk): - movie = get_object_or_404(Movie, pk=pk) + return Response(serializer.data, status=status.HTTP_200_OK) + + def put(self, request, pk: int) -> Response: + genre = self.get_object(pk=pk) + serializer = GenreSerializer(genre, request.data) + serializer.is_valid(raise_exception=True) + serializer.save() - if request.method == "GET": - serializer = MovieSerializer(movie) return Response(serializer.data, status=status.HTTP_200_OK) - if request.method == "PUT": - serializer = MovieSerializer(movie, data=request.data) - if serializer.is_valid(): - serializer.save() - return Response(serializer.data, status=status.HTTP_200_OK) + def patch(self, request, pk: int) -> Response: + genre = self.get_object(pk=pk) + serializer = GenreSerializer(genre, request.data, partial=True) + serializer.is_valid(raise_exception=True) + serializer.save() - return Response(serializer.errors, status=status.HTTP_400_BAD_REQUEST) + return Response(serializer.data, status=status.HTTP_200_OK) + + def delete(self, request, pk: int) -> Response: + self.get_object(pk=pk).delete() - if request.method == "DELETE": - movie.delete() return Response(status=status.HTTP_204_NO_CONTENT) + + +class ActorList( + generics.GenericAPIView, + mixins.ListModelMixin, + mixins.CreateModelMixin, +): + 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( + generics.GenericAPIView, + mixins.RetrieveModelMixin, + mixins.UpdateModelMixin, + mixins.DestroyModelMixin, +): + 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.ListModelMixin, + mixins.CreateModelMixin, + mixins.RetrieveModelMixin, + mixins.UpdateModelMixin, + mixins.DestroyModelMixin, +): + queryset = CinemaHall.objects.all() + serializer_class = CinemaHallSerializer + + +class MovieViewSet(viewsets.ModelViewSet): + queryset = Movie.objects.all() + serializer_class = MovieSerializer