Test(py-genres-and-actors)

db/migrations/0001_initial.py

@@ -0,0 +1,37 @@
+# Generated by Django 4.0.2 on 2023-10-07 13:48
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+    initial = True
+
+    dependencies = [
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name='Actor',
+            fields=[
+                ('id', models.AutoField(
+                    auto_created=True,
+                    primary_key=True,
+                    serialize=False,
+                    verbose_name='ID')),
+                ('first_name', models.CharField(max_length=255)),
+                ('last_name', models.CharField(max_length=255)),
+            ],
+        ),
+        migrations.CreateModel(
+            name='Genre',
+            fields=[
+                ('id', models.AutoField(
+                    auto_created=True,
+                    primary_key=True,
+                    serialize=False,
+                    verbose_name='ID'
+                )),
+                ('name', models.CharField(max_length=255)),
+            ],
+        ),
+    ]

db/models.py

@@ -1 +1,10 @@
 from django.db import models
+
+
+class Genre(models.Model):
+    name = models.CharField(max_length=255)
+
+
+class Actor(models.Model):
+    first_name = models.CharField(max_length=255)
+    last_name = models.CharField(max_length=255)

main.py

@@ -1,7 +1,53 @@
 import init_django_orm  # noqa: F401
-
+from db.models import Genre, Actor
 from django.db.models import QuerySet
 
 
 def main() -> QuerySet:
-    pass
+    create_genres = ["Western", "Action", "Dramma"]
+    for genre in create_genres:
+        Genre.objects.create(name=genre)
+
+    create_actors = [
+        {"first_name": "George", "last_name": "Klooney"},
+        {"first_name": "Kianu", "last_name": "Reaves"},
+        {"first_name": "Scarlett", "last_name": "Keegan"},
+        {"first_name": "Will", "last_name": "Smith"},
+        {"first_name": "Jaden", "last_name": "Smith"},
+        {"first_name": "Scarlett", "last_name": "Johansson"}
+    ]
+    for actor_data in create_actors:
+        Actor.objects.create(**actor_data)
+
+    update_genres = {"Dramma": "Drama"}
+    for old_name, new_name in update_genres.items():
+        Genre.objects.filter(name=old_name).update(name=new_name)
+
+    update_actors = [
+        {"last_name": "Klooney", "new_last_name": "Clooney"},
+        {"first_name": "Kianu", "new_first_name": "Keanu",
+         "last_name": "Reaves", "new_last_name": "Reeves"}
+    ]
+    for actor_data in update_actors:
+        filter_fields = {
+            key: value for key, value in actor_data.items() if
+            not key.startswith("new_")
+        }
+        update_fields = {
+            key.replace("new_", ""): value for key, value in
+            actor_data.items() if key.startswith("new_")
+        }
+
+        Actor.objects.filter(**filter_fields).update(**update_fields)
+
+    delete_genres = ["Action"]
+    for genre_name in delete_genres:
+        Genre.objects.filter(name=genre_name).delete()
+
+    delete_actors = {"first_name": "Scarlett"}
+    Actor.objects.filter(**delete_actors).delete()
+
+    last_name_is_smith = Actor.objects.filter(
+        last_name="Smith").order_by("first_name")
+
+    return last_name_is_smith