Solution

db/migrations/0001_initial.py

@@ -0,0 +1,52 @@
+# Generated by Django 4.0.2 on 2024-11-04 14:48
+
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+
+    initial = True
+
+    dependencies = [
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name='Guild',
+            fields=[
+                ('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('name', models.CharField(max_length=255, unique=True)),
+                ('description', models.TextField(null=True)),
+            ],
+        ),
+        migrations.CreateModel(
+            name='Race',
+            fields=[
+                ('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('name', models.CharField(max_length=255, unique=True)),
+                ('description', models.TextField(blank=True)),
+            ],
+        ),
+        migrations.CreateModel(
+            name='Skill',
+            fields=[
+                ('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('name', models.CharField(max_length=255, unique=True)),
+                ('bonus', models.CharField(max_length=255, verbose_name='This field describes what kind of bonus players can get from it.')),
+                ('race', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, to='db.race')),
+            ],
+        ),
+        migrations.CreateModel(
+            name='PlayerMode',
+            fields=[
+                ('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('nickname', models.CharField(max_length=255, unique=True)),
+                ('email', models.EmailField(max_length=255)),
+                ('bio', models.CharField(max_length=255, verbose_name='It stores a short description provided by a user about himself/herself.')),
+                ('created_at', models.DateTimeField(auto_now=True)),
+                ('guild', models.ForeignKey(on_delete=django.db.models.deletion.DO_NOTHING, to='db.guild')),
+                ('race', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, to='db.race')),
+            ],
+        ),
+    ]

db/migrations/0002_player_delete_playermode.py

@@ -0,0 +1,29 @@
+# Generated by Django 4.0.2 on 2024-11-04 17:24
+
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('db', '0001_initial'),
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name='Player',
+            fields=[
+                ('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('nickname', models.CharField(max_length=255, unique=True)),
+                ('email', models.EmailField(max_length=255)),
+                ('bio', models.CharField(max_length=255, verbose_name='It stores a short description provided by a user about himself/herself.')),
+                ('created_at', models.DateTimeField(auto_now=True)),
+                ('guild', models.ForeignKey(null=True, on_delete=django.db.models.deletion.SET_NULL, to='db.guild')),
+                ('race', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, to='db.race')),
+            ],
+        ),
+        migrations.DeleteModel(
+            name='PlayerMode',
+        ),
+    ]

db/migrations/0003_alter_player_bio_alter_player_created_at_and_more.py

@@ -0,0 +1,28 @@
+# Generated by Django 4.0.2 on 2024-11-04 22:50
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('db', '0002_player_delete_playermode'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='player',
+            name='bio',
+            field=models.CharField(max_length=255),
+        ),
+        migrations.AlterField(
+            model_name='player',
+            name='created_at',
+            field=models.DateTimeField(auto_now_add=True),
+        ),
+        migrations.AlterField(
+            model_name='skill',
+            name='bonus',
+            field=models.CharField(max_length=255),
+        ),
+    ]

db/models.py

@@ -1 +1,26 @@
 from django.db import models
+
+
+class Race(models.Model):
+    name = models.CharField(max_length=255, unique=True)
+    description = models.TextField(blank=True)
+
+
+class Skill(models.Model):
+    name = models.CharField(max_length=255, unique=True)
+    bonus = models.CharField(max_length=255)
+    race = models.ForeignKey(Race, on_delete=models.CASCADE)
+
+
+class Guild(models.Model):
+    name = models.CharField(max_length=255, unique=True)
+    description = models.TextField(null=True)
+
+
+class Player(models.Model):
+    nickname = models.CharField(max_length=255, unique=True)
+    email = models.EmailField(max_length=255, unique=False)
+    bio = models.CharField(max_length=255)
+    race = models.ForeignKey(Race, on_delete=models.CASCADE)
+    guild = models.ForeignKey(Guild, on_delete=models.SET_NULL, null=True)
+    created_at = models.DateTimeField(auto_now_add=True)

main.py

@@ -1,10 +1,40 @@
+import json
 import init_django_orm  # noqa: F401
-
 from db.models import Race, Skill, Player, Guild
 
 
 def main() -> None:
-    pass
+    with open("players.json", "r") as file:
+        players_data = json.load(file)
+
+    for nickname, player_data in players_data.items():
+        race_info = player_data.get("race")
+        race_player, created = Race.objects.get_or_create(
+            name=race_info.get("name"),
+            description=race_info.get("description")
+        )
+        skills = race_info.get("skills")
+        for skill in skills:
+            Skill.objects.get_or_create(
+                name=skill.get("name"),
+                race=race_player,
+                bonus=skill.get("bonus"),
+            )
+        guild_info = player_data.get("guild")
+        if guild_info:
+            guild_player, created = Guild.objects.get_or_create(
+                name=guild_info.get("name"),
+                description=guild_info.get("description")
+            )
+        else:
+            guild_player = None
+        Player.objects.get_or_create(
+            nickname=nickname,
+            email=player_data.get("email"),
+            bio=player_data.get("bio"),
+            race=race_player,
+            guild=guild_player
+        )
 
 
 if __name__ == "__main__":