diff --git a/db/migrations/0002_user_order_ticket_alter_movie_actors_and_more.py b/db/migrations/0002_user_order_ticket_alter_movie_actors_and_more.py new file mode 100644 index 000000000..c1931e947 --- /dev/null +++ b/db/migrations/0002_user_order_ticket_alter_movie_actors_and_more.py @@ -0,0 +1,114 @@ +# Generated by Django 4.0.2 on 2024-09-03 00:49 + +from django.conf import settings +import django.contrib.auth.models +import django.contrib.auth.validators +from django.db import migrations, models +import django.db.models.deletion +import django.utils.timezone + + +class Migration(migrations.Migration): + + dependencies = [ + ('auth', '0012_alter_user_first_name_max_length'), + ('db', '0001_initial'), + ] + + operations = [ + migrations.CreateModel( + name='User', + fields=[ + ('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')), + ('password', models.CharField(max_length=128, verbose_name='password')), + ('last_login', models.DateTimeField(blank=True, null=True, verbose_name='last login')), + ('is_superuser', models.BooleanField(default=False, help_text='Designates that this user has all permissions without explicitly assigning them.', verbose_name='superuser status')), + ('username', models.CharField(error_messages={'unique': 'A user with that username already exists.'}, help_text='Required. 150 characters or fewer. Letters, digits and @/./+/-/_ only.', max_length=150, unique=True, validators=[django.contrib.auth.validators.UnicodeUsernameValidator()], verbose_name='username')), + ('first_name', models.CharField(blank=True, max_length=150, verbose_name='first name')), + ('last_name', models.CharField(blank=True, max_length=150, verbose_name='last name')), + ('email', models.EmailField(blank=True, max_length=254, verbose_name='email address')), + ('is_staff', models.BooleanField(default=False, help_text='Designates whether the user can log into this admin site.', verbose_name='staff status')), + ('is_active', models.BooleanField(default=True, help_text='Designates whether this user should be treated as active. Unselect this instead of deleting accounts.', verbose_name='active')), + ('date_joined', models.DateTimeField(default=django.utils.timezone.now, verbose_name='date joined')), + ], + options={ + 'verbose_name': 'user', + 'verbose_name_plural': 'users', + 'abstract': False, + }, + managers=[ + ('objects', django.contrib.auth.models.UserManager()), + ], + ), + migrations.CreateModel( + name='Order', + fields=[ + ('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')), + ('created_at', models.DateTimeField(auto_now_add=True)), + ], + options={ + 'ordering': ['-created_at'], + }, + ), + migrations.CreateModel( + name='Ticket', + fields=[ + ('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')), + ('row', models.IntegerField()), + ('seat', models.IntegerField()), + ], + ), + migrations.AlterField( + model_name='movie', + name='actors', + field=models.ManyToManyField(related_name='movies', to='db.Actor'), + ), + migrations.AlterField( + model_name='movie', + name='genres', + field=models.ManyToManyField(related_name='movies', to='db.Genre'), + ), + migrations.AlterField( + model_name='moviesession', + name='cinema_hall', + field=models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, related_name='movie_sessions', to='db.cinemahall'), + ), + migrations.AlterField( + model_name='moviesession', + name='movie', + field=models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, related_name='movie_sessions', to='db.movie'), + ), + migrations.AddIndex( + model_name='movie', + index=models.Index(fields=['title'], name='db_movie_title_5d0841_idx'), + ), + migrations.AddField( + model_name='ticket', + name='movie_session', + field=models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, related_name='tickets', to='db.moviesession'), + ), + migrations.AddField( + model_name='ticket', + name='order', + field=models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, related_name='tickets', to='db.order'), + ), + migrations.AddField( + model_name='order', + name='user', + field=models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, related_name='orders', to=settings.AUTH_USER_MODEL), + ), + migrations.AddField( + model_name='user', + name='groups', + field=models.ManyToManyField(blank=True, help_text='The groups this user belongs to. A user will get all permissions granted to each of their groups.', related_name='user_set', related_query_name='user', to='auth.Group', verbose_name='groups'), + ), + migrations.AddField( + model_name='user', + name='user_permissions', + field=models.ManyToManyField(blank=True, help_text='Specific permissions for this user.', related_name='user_set', related_query_name='user', to='auth.Permission', verbose_name='user permissions'), + ), + migrations.AddConstraint( + model_name='ticket', + constraint=models.UniqueConstraint(fields=('seat', 'row', 'movie_session'), name='unique_seat_row_movie_session'), + ), + ] diff --git a/db/models.py b/db/models.py index 2a3359a63..cfab917e7 100644 --- a/db/models.py +++ b/db/models.py @@ -1,4 +1,12 @@ +from django.conf import settings +from django.contrib.auth.models import AbstractUser +from django.core.exceptions import ValidationError from django.db import models +from django.db.models import UniqueConstraint + + +class User(AbstractUser): + pass class Genre(models.Model): @@ -22,6 +30,11 @@ class Movie(models.Model): actors = models.ManyToManyField(to=Actor, related_name="movies") genres = models.ManyToManyField(to=Genre, related_name="movies") + class Meta: + indexes = [ + models.Index(fields=["title"]) + ] + def __str__(self) -> str: return self.title @@ -50,3 +63,65 @@ class MovieSession(models.Model): def __str__(self) -> str: return f"{self.movie.title} {str(self.show_time)}" + + +class Order(models.Model): + created_at = models.DateTimeField(auto_now_add=True) + user = models.ForeignKey( + to=settings.AUTH_USER_MODEL, + on_delete=models.CASCADE, + related_name="orders" + ) + + class Meta: + ordering = ["-created_at"] + + def __str__(self) -> str: + return f"{self.created_at}" + + +class Ticket(models.Model): + movie_session = models.ForeignKey( + to=MovieSession, on_delete=models.CASCADE, related_name="tickets" + ) + order = models.ForeignKey( + to=Order, on_delete=models.CASCADE, related_name="tickets" + ) + row = models.IntegerField() + seat = models.IntegerField() + + class Meta: + constraints = [ + UniqueConstraint( + fields=["seat", "row", "movie_session"], + name="unique_seat_row_movie_session" + ) + ] + + def clean(self) -> None: + if not (1 <= self.row <= self.movie_session.cinema_hall.rows): + raise ValidationError( + { + "row": f"row number must be in available range: (1, " + f"rows): (1, {self.movie_session.cinema_hall.rows})" + } + ) + if not (1 <= self.seat <= self.movie_session.cinema_hall.seats_in_row): + raise ValidationError( + { + "seat": f"seat number must be in available range: " + f"(1, seats_in_row): (1, " + f"{self.movie_session.cinema_hall.seats_in_row})" + } + ) + + def save(self, *args, **kwargs) -> None: + self.full_clean() + return super().save(*args, **kwargs) + + def __str__(self) -> str: + return ( + f"{self.movie_session.movie.title} " + f"{self.movie_session.show_time} (row: {self.row}, " + f"seat: {self.seat})" + ) diff --git a/services/movie.py b/services/movie.py index 4d0f63237..bfcd44627 100644 --- a/services/movie.py +++ b/services/movie.py @@ -1,11 +1,15 @@ +from typing import Optional + +from django.db import transaction from django.db.models import QuerySet from db.models import Movie def get_movies( - genres_ids: list[int] = None, - actors_ids: list[int] = None, + genres_ids: Optional[list[int]] = None, + actors_ids: Optional[list[int]] = None, + title: Optional[str] = None, ) -> QuerySet: queryset = Movie.objects.all() @@ -15,6 +19,9 @@ def get_movies( if actors_ids: queryset = queryset.filter(actors__id__in=actors_ids) + if title: + queryset = queryset.filter(title__contains=title) + return queryset @@ -28,13 +35,14 @@ def create_movie( genres_ids: list = None, actors_ids: list = None, ) -> Movie: - movie = Movie.objects.create( - title=movie_title, - description=movie_description, - ) - if genres_ids: - movie.genres.set(genres_ids) - if actors_ids: - movie.actors.set(actors_ids) - - return movie + with transaction.atomic(): + movie = Movie.objects.create( + title=movie_title, + description=movie_description, + ) + if genres_ids: + movie.genres.set(genres_ids) + if actors_ids: + movie.actors.set(actors_ids) + + return movie diff --git a/services/movie_session.py b/services/movie_session.py index f326a082e..25a7f9013 100644 --- a/services/movie_session.py +++ b/services/movie_session.py @@ -1,3 +1,5 @@ +from typing import Optional + from django.db.models import QuerySet from db.models import MovieSession @@ -24,11 +26,19 @@ def get_movie_session_by_id(movie_session_id: int) -> MovieSession: return MovieSession.objects.get(id=movie_session_id) +def get_taken_seats(movie_session_id: int) -> list[dict]: + return list( + MovieSession.objects.get( + id=movie_session_id + ).tickets.values("row", "seat") + ) + + def update_movie_session( session_id: int, - show_time: str = None, - movie_id: int = None, - cinema_hall_id: int = None, + show_time: Optional[str] = None, + movie_id: Optional[int] = None, + cinema_hall_id: Optional[int] = None, ) -> None: movie_session = MovieSession.objects.get(id=session_id) if show_time: diff --git a/services/order.py b/services/order.py new file mode 100644 index 000000000..e1611dcf7 --- /dev/null +++ b/services/order.py @@ -0,0 +1,51 @@ +from datetime import datetime +from typing import Optional + +from django.contrib.auth import get_user_model +from django.core.exceptions import ObjectDoesNotExist +from django.db import transaction +from django.db.models import QuerySet + +from db.models import Order, Ticket, MovieSession + + +def create_order( + tickets: list[dict], + username: str, + date: Optional[datetime] = None +) -> None: + with transaction.atomic(): + order = Order.objects.create( + user=get_user_model().objects.get(username=username) + ) + if date: + order.created_at = date + order.save() + + movie_session_ids = {ticket["movie_session"] for ticket in tickets} + + existing_sessions = set( + MovieSession.objects.filter(id__in=movie_session_ids).values_list( + "id", flat=True + ) + ) + + if movie_session_ids - existing_sessions: + raise ObjectDoesNotExist + + Ticket.objects.bulk_create([ + Ticket( + movie_session_id=ticket["movie_session"], + order=order, + row=ticket["row"], + seat=ticket["seat"] + ) + for ticket in tickets + ]) + + +def get_orders(username: Optional[str] = None) -> QuerySet: + queryset = Order.objects.all() + if username: + queryset = queryset.filter(user__username=username) + return queryset diff --git a/services/user.py b/services/user.py new file mode 100644 index 000000000..fb403e621 --- /dev/null +++ b/services/user.py @@ -0,0 +1,53 @@ +from typing import Optional + +from django.contrib.auth import get_user_model + + +def create_user( + username: str, + password: str, + email: Optional[str] = None, + first_name: Optional[str] = None, + last_name: Optional[str] = None +) -> None: + user = get_user_model().objects.create_user( + username=username, + password=password + ) + + if email: + user.email = email + if first_name: + user.first_name = first_name + if last_name: + user.last_name = last_name + + user.save() + + +def get_user(user_id: int) -> get_user_model(): + return get_user_model().objects.get(pk=user_id) + + +def update_user( + user_id: int, + username: Optional[str] = None, + password: Optional[str] = None, + email: Optional[str] = None, + first_name: Optional[str] = None, + last_name: Optional[str] = None +) -> None: + user = get_user(user_id) + + if username: + user.username = username + if password: + user.set_password(password) + if email: + user.email = email + if first_name: + user.first_name = first_name + if last_name: + user.last_name = last_name + + user.save() diff --git a/settings.py b/settings.py index f25910b30..7fccca04e 100644 --- a/settings.py +++ b/settings.py @@ -8,6 +8,10 @@ DEFAULT_AUTO_FIELD = "django.db.models.AutoField" +ALLOWED_HOSTS = ["*"] + +AUTH_USER_MODEL = "db.User" + DATABASES = { "default": { "ENGINE": "django.db.backends.sqlite3", @@ -24,5 +28,7 @@ USE_TZ = False INSTALLED_APPS = [ + "django.contrib.auth", + "django.contrib.contenttypes", "db", ]