Implemented Carrier Aerodrome AircraftBase Equipment

simulator/admin.py

@@ -1,3 +1,8 @@
 from django.contrib import admin
-
+from .models import Carrier, AircraftBase, Equipment, Aerodrome
 # Register your models here.
+
+admin.site.register(Carrier)
+admin.site.register(AircraftBase)
+admin.site.register(Equipment)
+admin.site.register(Aerodrome)

simulator/migrations/0001_initial.py

@@ -0,0 +1,56 @@
+# Generated by Django 5.2.6 on 2025-09-30 02:02
+
+import django.db.models.deletion
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    initial = True
+
+    dependencies = [
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name='Aerodrome',
+            fields=[
+                ('id', models.BigAutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('icao', models.CharField(max_length=4, unique=True)),
+                ('iata', models.CharField(blank=True, max_length=3, null=True, unique=True)),
+                ('name', models.CharField(max_length=100)),
+                ('city', models.CharField(max_length=100)),
+                ('country', models.CharField(max_length=100)),
+            ],
+        ),
+        migrations.CreateModel(
+            name='AircraftBase',
+            fields=[
+                ('id', models.BigAutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('name', models.CharField(max_length=20)),
+                ('manufacturer', models.CharField(max_length=50)),
+                ('range_nm', models.IntegerField()),
+                ('capacity', models.IntegerField()),
+                ('cruise_speed_kt', models.IntegerField()),
+            ],
+        ),
+        migrations.CreateModel(
+            name='Carrier',
+            fields=[
+                ('id', models.BigAutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('icao', models.CharField(max_length=3, unique=True)),
+                ('iata', models.CharField(max_length=2, unique=True)),
+                ('name', models.CharField(max_length=100, unique=True)),
+                ('country', models.CharField(max_length=30)),
+            ],
+        ),
+        migrations.CreateModel(
+            name='Equipment',
+            fields=[
+                ('id', models.BigAutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('registration', models.CharField(max_length=10, unique=True)),
+                ('model', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, related_name='aircraft', to='simulator.aircraftbase')),
+                ('owner', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, related_name='fleet', to='simulator.carrier')),
+            ],
+        ),
+    ]

simulator/migrations/0002_alter_aerodrome_country.py

@@ -0,0 +1,18 @@
+# Generated by Django 5.2.6 on 2025-09-30 02:04
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('simulator', '0001_initial'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='aerodrome',
+            name='country',
+            field=models.CharField(max_length=2),
+        ),
+    ]

simulator/migrations/0003_alter_aerodrome_country.py

@@ -0,0 +1,18 @@
+# Generated by Django 5.2.6 on 2025-09-30 02:05
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('simulator', '0002_alter_aerodrome_country'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='aerodrome',
+            name='country',
+            field=models.CharField(max_length=3),
+        ),
+    ]

simulator/models.py

@@ -1,3 +0,0 @@
-from django.db import models
-
-# Create your models here.

simulator/models/__init__.py

@@ -0,0 +1,3 @@
+from .carrier import Carrier
+from .aircraft import Equipment, AircraftBase
+from .aerodrome import Aerodrome

simulator/models/aerodrome.py

@@ -0,0 +1,12 @@
+from django.db import models
+
+
+class Aerodrome(models.Model):
+    icao = models.CharField(max_length=4, unique=True)
+    iata = models.CharField(max_length=3, unique=True, blank=True, null=True)
+    name = models.CharField(max_length=100)
+    city = models.CharField(max_length=100)
+    country = models.CharField(max_length=3)
+
+    def __str__(self):
+        return f"{self.icao} - {self.city}"

simulator/models/aircraft.py

@@ -0,0 +1,23 @@
+from django.db import models
+
+
+class AircraftBase(models.Model):
+    name = models.CharField(max_length=20)
+    manufacturer = models.CharField(max_length=50)
+    range_nm = models.IntegerField()
+    capacity = models.IntegerField()
+    cruise_speed_kt = models.IntegerField()
+
+    def __str__(self):
+        return f"{self.manufacturer} {self.name}"
+
+
+class Equipment(models.Model):
+    registration = models.CharField(max_length=10, unique=True)
+    model = models.ForeignKey(
+        "AircraftBase", on_delete=models.CASCADE, related_name="aircraft"
+    )
+    owner = models.ForeignKey("Carrier", on_delete=models.CASCADE, related_name="fleet")
+
+    def __str__(self):
+        return f"{self.registration} ({self.model})"

simulator/models/carrier.py

@@ -0,0 +1,15 @@
+from django.db import models
+from .aircraft import Equipment
+
+
+class Carrier(models.Model):
+    icao = models.CharField(max_length=3, unique=True)
+    iata = models.CharField(max_length=2, unique=True)
+    name = models.CharField(max_length=100, unique=True)
+    country = models.CharField(max_length=3)
+
+    def __str__(self) -> str:
+        return f"{self.name} ({self.icao}/{self.iata})"
+
+    def fleet_size(self) -> int:
+        return Equipment.objects.filter(owner=self).count()