Solution

db/migrations/0002_cinemahall_movie_moviesession.py

@@ -0,0 +1,82 @@
+# Generated by Django 4.1.2 on 2025-01-10 20:01
+
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+    dependencies = [
+        ("db", "0001_initial"),
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name="CinemaHall",
+            fields=[
+                (
+                    "id",
+                    models.AutoField(
+                        auto_created=True,
+                        primary_key=True,
+                        serialize=False,
+                        verbose_name="ID",
+                    ),
+                ),
+                ("name", models.CharField(max_length=255)),
+            ],
+        ),
+        migrations.CreateModel(
+            name="Movie",
+            fields=[
+                (
+                    "id",
+                    models.AutoField(
+                        auto_created=True,
+                        primary_key=True,
+                        serialize=False,
+                        verbose_name="ID",
+                    ),
+                ),
+                ("title", models.CharField(max_length=255)),
+                (
+                    "actors",
+                    models.ManyToManyField(related_name="actors", to="db.actor"),
+                ),
+                (
+                    "genres",
+                    models.ManyToManyField(related_name="genres", to="db.genre"),
+                ),
+            ],
+        ),
+        migrations.CreateModel(
+            name="MovieSession",
+            fields=[
+                (
+                    "id",
+                    models.AutoField(
+                        auto_created=True,
+                        primary_key=True,
+                        serialize=False,
+                        verbose_name="ID",
+                    ),
+                ),
+                ("show_time", models.DateTimeField()),
+                (
+                    "cinema_hall",
+                    models.ForeignKey(
+                        on_delete=django.db.models.deletion.CASCADE,
+                        related_name="movie_sessions",
+                        to="db.cinemahall",
+                    ),
+                ),
+                (
+                    "movie",
+                    models.ForeignKey(
+                        on_delete=django.db.models.deletion.CASCADE,
+                        related_name="movie_sessions",
+                        to="db.movie",
+                    ),
+                ),
+            ],
+        ),
+    ]

db/migrations/0003_cinemahall_rows_cinemahall_seats_in_row.py

@@ -0,0 +1,22 @@
+# Generated by Django 4.1.2 on 2025-01-10 20:07
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+    dependencies = [
+        ("db", "0002_cinemahall_movie_moviesession"),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name="cinemahall",
+            name="rows",
+            field=models.IntegerField(default=1),
+        ),
+        migrations.AddField(
+            model_name="cinemahall",
+            name="seats_in_row",
+            field=models.IntegerField(default=1),
+        ),
+    ]

db/migrations/0004_movie_description.py

@@ -0,0 +1,17 @@
+# Generated by Django 4.1.2 on 2025-01-10 20:08
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+    dependencies = [
+        ("db", "0003_cinemahall_rows_cinemahall_seats_in_row"),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name="movie",
+            name="description",
+            field=models.TextField(null=True),
+        ),
+    ]

db/models.py

@@ -14,3 +14,43 @@ class Actor(models.Model):
 
     def __str__(self) -> str:
         return f"{self.first_name} {self.last_name}"
+
+
+class Movie(models.Model):
+    title = models.CharField(max_length=255)
+    description = models.TextField(null=True)
+    actors = models.ManyToManyField(Actor, related_name="actors")
+    genres = models.ManyToManyField(Genre, related_name="genres")
+
+    def __str__(self) -> str:
+        return self.title
+
+
+class CinemaHall(models.Model):
+    name = models.CharField(max_length=255)
+    rows = models.IntegerField(default=1)
+    seats_in_row = models.IntegerField(default=1)
+
+    def __str__(self) -> str:
+        return self.name
+
+    @property
+    def capacity(self) -> int:
+        return self.rows * self.seats_in_row
+
+
+class MovieSession(models.Model):
+    show_time = models.DateTimeField()
+    cinema_hall = models.ForeignKey(
+        CinemaHall,
+        on_delete=models.CASCADE,
+        related_name="movie_sessions"
+    )
+    movie = models.ForeignKey(
+        Movie,
+        on_delete=models.CASCADE,
+        related_name="movie_sessions"
+    )
+
+    def __str__(self) -> str:
+        return f"{self.movie.title} {self.show_time}"

services/cinema_hall.py

@@ -0,0 +1,17 @@
+from db.models import CinemaHall
+
+
+def get_cinema_halls() -> list:
+    return CinemaHall.objects.all()
+
+
+def create_cinema_hall(
+        hall_name: str,
+        hall_rows: int,
+        hall_seats_in_row: int
+) -> str:
+    return CinemaHall.objects.create(
+        name=hall_name,
+        rows=hall_rows,
+        seats_in_row=hall_seats_in_row
+    )

services/movie.py

@@ -0,0 +1,34 @@
+from db.models import Movie
+
+
+def get_movies(genres_ids: list = None, actors_ids: list = None) -> str:
+    query = Movie.objects.all()
+    if genres_ids:
+        query = query.filter(genres__id__in=genres_ids)
+    if actors_ids:
+        query = query.filter(actors__id__in=actors_ids)
+    return query.distinct()
+
+
+def get_movie_by_id(movie_id: int) -> str:
+    return Movie.objects.get(id=movie_id)
+
+
+def create_movie(
+    movie_title: str,
+    movie_description: str,
+    genres_ids: list = None,
+    actors_ids: list = None
+) -> str:
+
+    movie = Movie.objects.create(
+        title=movie_title,
+        description=movie_description,
+        actors=actors_ids,
+        genres=genres_ids
+    )
+    if genres_ids:
+        movie.genres.set(genres_ids)
+    if actors_ids:
+        movie.actors.set(actors_ids)
+    return movie

services/movie_session.py

@@ -0,0 +1,47 @@
+from db.models import MovieSession
+
+
+def create_movie_session(
+        movie_show_time: str,
+        movie_id: int,
+        cinema_hall_id: int
+) -> str:
+    return MovieSession.objects.create(
+        show_time=movie_show_time,
+        cinema_hall=cinema_hall_id,
+        movie=movie_id
+    )
+
+
+def get_movies_sessions(session_date: str = None) -> str:
+    query = MovieSession.objects.all()
+    if session_date:
+        query = query.filter(show_time__date=session_date)
+    return query
+
+
+def get_movie_session_by_id(movie_session_id: int) -> str:
+    return MovieSession.objects.get(id=movie_session_id)
+
+
+def update_movie_session(
+        session_id: int,
+        show_time: str = None,
+        movie_id: int = None,
+        cinema_hall_id: int = None
+) -> str:
+    session = MovieSession.objects.get(id=session_id)
+
+    if show_time:
+        session.show_time = show_time
+    if movie_id:
+        session.movie = movie_id
+    if cinema_hall_id:
+        session.cinema_hall = cinema_hall_id
+
+    session.save()
+    return session
+
+
+def delete_movie_session_by_id(session_id: int) -> None:
+    MovieSession.objects.filter(id=session_id).delete()

settings.py

@@ -21,6 +21,6 @@
 
 USE_I18N = True
 
-USE_TZ = False
+USE_TZ = True
 
 INSTALLED_APPS = ("db",)