[FEAT] ERD 기반 DB 모델 및 초기 데이터 구축

accounts/migrations/0001_initial.py

@@ -0,0 +1,53 @@
+# Generated by Django 6.0.7 on 2026-07-29 12:25
+
+import django.contrib.auth.models
+import django.contrib.auth.validators
+import django.contrib.postgres.fields
+import django.utils.timezone
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    initial = True
+
+    dependencies = [
+        ('auth', '0012_alter_user_first_name_max_length'),
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name='User',
+            fields=[
+                ('id', models.BigAutoField(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')),
+                ('created_at', models.DateTimeField(auto_now_add=True)),
+                ('updated_at', models.DateTimeField(auto_now=True)),
+                ('name', models.CharField(max_length=50)),
+                ('birth_date', models.DateField(blank=True, null=True)),
+                ('gender', models.CharField(blank=True, choices=[('FEMALE', '여성'), ('MALE', '남성'), ('OTHER', '기타')], max_length=10)),
+                ('spending_type', models.CharField(blank=True, choices=[('EXPERIENCE', '경험·만족 중시'), ('VALUE', '가성비 중시'), ('GROWTH', '성장·자기개발 중시'), ('ASSET', '자산 형성 중심')], max_length=20)),
+                ('value_criteria', django.contrib.postgres.fields.ArrayField(base_field=models.CharField(choices=[('PRICE', '가격'), ('SATISFACTION', '만족도'), ('QUALITY', '품질'), ('UTILIZATION', '활용도'), ('LONG_TERM_VALUE', '장기 가치')], max_length=30), blank=True, default=list)),
+                ('monthly_budget', models.CharField(blank=True, choices=[('UNDER_100K', '10만원 이하'), ('100K_300K', '10~30만원'), ('300K_500K', '30~50만원'), ('500K_1M', '50~100만원'), ('1M_2M', '100~200만원'), ('OVER_2M', '200만원 이상')], max_length=20)),
+                ('groups', 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')),
+                ('user_permissions', 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')),
+            ],
+            options={
+                'verbose_name': 'user',
+                'verbose_name_plural': 'users',
+                'abstract': False,
+            },
+            managers=[
+                ('objects', django.contrib.auth.models.UserManager()),
+            ],
+        ),
+    ]

accounts/models.py

@@ -1,3 +1,70 @@
+from django.contrib.auth.models import AbstractUser
+from django.contrib.postgres.fields import ArrayField
 from django.db import models
 
-# Create your models here.
+from core.models import TimeStampedModel
+
+
+class User(AbstractUser, TimeStampedModel):
+    class Gender(models.TextChoices):
+        FEMALE = "FEMALE", "여성"
+        MALE = "MALE", "남성"
+        OTHER = "OTHER", "기타"
+
+    class SpendingType(models.TextChoices):
+        EXPERIENCE = "EXPERIENCE", "경험·만족 중시"
+        VALUE = "VALUE", "가성비 중시"
+        GROWTH = "GROWTH", "성장·자기개발 중시"
+        ASSET = "ASSET", "자산 형성 중심"
+
+    class ValueCriterion(models.TextChoices):
+        PRICE = "PRICE", "가격"
+        SATISFACTION = "SATISFACTION", "만족도"
+        QUALITY = "QUALITY", "품질"
+        UTILIZATION = "UTILIZATION", "활용도"
+        LONG_TERM_VALUE = "LONG_TERM_VALUE", "장기 가치"
+
+    class MonthlyBudget(models.TextChoices):
+        UNDER_100K = "UNDER_100K", "10만원 이하"
+        FROM_100K_TO_300K = "100K_300K", "10~30만원"
+        FROM_300K_TO_500K = "300K_500K", "30~50만원"
+        FROM_500K_TO_1M = "500K_1M", "50~100만원"
+        FROM_1M_TO_2M = "1M_2M", "100~200만원"
+        OVER_2M = "OVER_2M", "200만원 이상"
+
+    name = models.CharField(max_length=50)
+
+    birth_date = models.DateField(
+        null=True,
+        blank=True,
+    )
+
+    gender = models.CharField(
+        max_length=10,
+        choices=Gender.choices,
+        blank=True,
+    )
+
+    spending_type = models.CharField(
+        max_length=20,
+        choices=SpendingType.choices,
+        blank=True,
+    )
+
+    value_criteria = ArrayField(
+        base_field=models.CharField(
+            max_length=30,
+            choices=ValueCriterion.choices,
+        ),
+        default=list,
+        blank=True,
+    )
+
+    monthly_budget = models.CharField(
+        max_length=20,
+        choices=MonthlyBudget.choices,
+        blank=True,
+    )
+
+    def __str__(self):
+        return self.username

alternatives/migrations/0001_initial.py

@@ -0,0 +1,89 @@
+# Generated by Django 6.0.7 on 2026-07-29 12:25
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    initial = True
+
+    dependencies = [
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name='Alternative',
+            fields=[
+                ('id', models.BigAutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('created_at', models.DateTimeField(auto_now_add=True)),
+                ('updated_at', models.DateTimeField(auto_now=True)),
+                ('slot', models.PositiveSmallIntegerField()),
+                ('version', models.PositiveIntegerField(default=1)),
+                ('is_current', models.BooleanField(default=True)),
+                ('unit_price', models.PositiveIntegerField()),
+                ('duration', models.CharField(blank=True, max_length=100)),
+                ('expected_effect', models.TextField(blank=True)),
+                ('ai_reason', models.TextField(blank=True)),
+                ('result_type', models.CharField(choices=[('QUANTITY', '수량 환산'), ('FUTURE_VALUE', '미래가치')], max_length=20)),
+                ('equivalent_quantity', models.DecimalField(blank=True, decimal_places=2, max_digits=8, null=True)),
+                ('future_value', models.PositiveIntegerField(blank=True, null=True)),
+                ('display_text', models.CharField(max_length=300)),
+            ],
+            options={
+                'ordering': ['category__display_order', 'slot', '-version'],
+            },
+        ),
+        migrations.CreateModel(
+            name='AlternativeItem',
+            fields=[
+                ('id', models.BigAutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('created_at', models.DateTimeField(auto_now_add=True)),
+                ('updated_at', models.DateTimeField(auto_now=True)),
+                ('name', models.CharField(max_length=200)),
+                ('unit_label', models.CharField(blank=True, max_length=30)),
+                ('average_price', models.PositiveIntegerField()),
+                ('spec_note', models.CharField(blank=True, max_length=300)),
+                ('calc_type', models.CharField(choices=[('UNIT_PRICE', '단가 환산'), ('SAVINGS', '적금'), ('DEPOSIT', '예금'), ('INVESTMENT', '투자')], default='UNIT_PRICE', max_length=20)),
+                ('calc_params', models.JSONField(blank=True, default=dict)),
+                ('source_name', models.CharField(max_length=200)),
+                ('source_url', models.URLField(max_length=500)),
+                ('effective_date', models.DateField()),
+                ('is_active', models.BooleanField(default=True)),
+            ],
+            options={
+                'ordering': ['category__display_order', 'name', '-effective_date'],
+            },
+        ),
+        migrations.CreateModel(
+            name='Category',
+            fields=[
+                ('id', models.BigAutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('created_at', models.DateTimeField(auto_now_add=True)),
+                ('updated_at', models.DateTimeField(auto_now=True)),
+                ('code', models.CharField(choices=[('TRAVEL', '여행'), ('HEALTH', '운동(건강)'), ('CULTURE', '문화(여가)'), ('LIVING', '생활편의'), ('DIGITAL', '디지털 전자기기'), ('FINANCE', '재정')], max_length=20, unique=True)),
+                ('name', models.CharField(max_length=50)),
+                ('emoji', models.CharField(blank=True, max_length=10)),
+                ('display_order', models.PositiveSmallIntegerField(default=0)),
+                ('is_active', models.BooleanField(default=True)),
+            ],
+            options={
+                'ordering': ['display_order', 'id'],
+            },
+        ),
+        migrations.CreateModel(
+            name='LLMRequestLog',
+            fields=[
+                ('id', models.BigAutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('created_at', models.DateTimeField(auto_now_add=True)),
+                ('updated_at', models.DateTimeField(auto_now=True)),
+                ('purpose', models.CharField(choices=[('GENERATE', '최초 생성'), ('REGENERATE', '개별 재생성'), ('DECISION', '구매 의사결정')], max_length=20)),
+                ('model', models.CharField(max_length=100)),
+                ('prompt', models.TextField()),
+                ('response', models.JSONField(blank=True, null=True)),
+                ('status', models.CharField(choices=[('SUCCESS', '성공'), ('FAILED', '실패')], max_length=20)),
+            ],
+            options={
+                'ordering': ['-created_at'],
+            },
+        ),
+    ]

alternatives/migrations/0002_initial.py

@@ -0,0 +1,70 @@
+# Generated by Django 6.0.7 on 2026-07-29 12:25
+
+import django.db.models.deletion
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    initial = True
+
+    dependencies = [
+        ('alternatives', '0001_initial'),
+        ('products', '0001_initial'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='alternative',
+            name='consideration',
+            field=models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, related_name='alternatives', to='products.consideration'),
+        ),
+        migrations.AddField(
+            model_name='alternative',
+            name='item',
+            field=models.ForeignKey(on_delete=django.db.models.deletion.PROTECT, related_name='alternatives', to='alternatives.alternativeitem'),
+        ),
+        migrations.AddField(
+            model_name='alternativeitem',
+            name='category',
+            field=models.ForeignKey(on_delete=django.db.models.deletion.PROTECT, related_name='alternative_items', to='alternatives.category'),
+        ),
+        migrations.AddField(
+            model_name='alternative',
+            name='category',
+            field=models.ForeignKey(on_delete=django.db.models.deletion.PROTECT, related_name='alternatives', to='alternatives.category'),
+        ),
+        migrations.AddField(
+            model_name='llmrequestlog',
+            name='consideration',
+            field=models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, related_name='llm_request_logs', to='products.consideration'),
+        ),
+        migrations.AddIndex(
+            model_name='alternativeitem',
+            index=models.Index(fields=['category', 'is_active'], name='alt_item_category_active_idx'),
+        ),
+        migrations.AddConstraint(
+            model_name='alternativeitem',
+            constraint=models.CheckConstraint(condition=models.Q(('average_price__gt', 0)), name='alternative_item_price_gt_0'),
+        ),
+        migrations.AddConstraint(
+            model_name='alternative',
+            constraint=models.CheckConstraint(condition=models.Q(('slot__gte', 1), ('slot__lte', 3)), name='alternative_slot_between_1_and_3'),
+        ),
+        migrations.AddConstraint(
+            model_name='alternative',
+            constraint=models.CheckConstraint(condition=models.Q(('version__gte', 1)), name='alternative_version_gte_1'),
+        ),
+        migrations.AddConstraint(
+            model_name='alternative',
+            constraint=models.CheckConstraint(condition=models.Q(('unit_price__gt', 0)), name='alternative_unit_price_gt_0'),
+        ),
+        migrations.AddConstraint(
+            model_name='alternative',
+            constraint=models.UniqueConstraint(fields=('consideration', 'category', 'slot', 'version'), name='unique_alternative_slot_version'),
+        ),
+        migrations.AddConstraint(
+            model_name='alternative',
+            constraint=models.UniqueConstraint(condition=models.Q(('is_current', True)), fields=('consideration', 'category', 'slot'), name='unique_current_alternative_slot'),
+        ),
+    ]

alternatives/migrations/0003_alternative_valid_alternative_result.py

@@ -0,0 +1,18 @@
+# Generated by Django 6.0.7 on 2026-07-29 12:27
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('alternatives', '0002_initial'),
+        ('products', '0001_initial'),
+    ]
+
+    operations = [
+        migrations.AddConstraint(
+            model_name='alternative',
+            constraint=models.CheckConstraint(condition=models.Q(models.Q(('equivalent_quantity__isnull', False), ('future_value__isnull', True), ('result_type', 'QUANTITY')), models.Q(('equivalent_quantity__isnull', True), ('future_value__isnull', False), ('result_type', 'FUTURE_VALUE')), _connector='OR'), name='valid_alternative_result'),
+        ),
+    ]

alternatives/migrations/0004_seed_categories.py

@@ -0,0 +1,68 @@
+from django.db import migrations
+
+
+CATEGORIES = [
+    {
+        "code": "TRAVEL",
+        "name": "여행",
+        "display_order": 1,
+    },
+    {
+        "code": "HEALTH",
+        "name": "운동·건강",
+        "display_order": 2,
+    },
+    {
+        "code": "CULTURE",
+        "name": "문화·여가",
+        "display_order": 3,
+    },
+    {
+        "code": "LIVING",
+        "name": "생활·편의",
+        "display_order": 4,
+    },
+    {
+        "code": "DIGITAL",
+        "name": "디지털·전자기기",
+        "display_order": 5,
+    },
+    {
+        "code": "FINANCE",
+        "name": "재정",
+        "display_order": 6,
+    },
+]
+
+
+def seed_categories(apps, schema_editor):
+    Category = apps.get_model("alternatives", "Category")
+
+    for category in CATEGORIES:
+        Category.objects.update_or_create(
+            code=category["code"],
+            defaults={
+                "name": category["name"],
+                "display_order": category["display_order"],
+                "is_active": True,
+            },
+        )
+
+
+def remove_categories(apps, schema_editor):
+    Category = apps.get_model("alternatives", "Category")
+    category_codes = [category["code"] for category in CATEGORIES]
+    Category.objects.filter(code__in=category_codes).delete()
+
+
+class Migration(migrations.Migration):
+    dependencies = [
+        ("alternatives", "0003_alternative_valid_alternative_result"),
+    ]
+
+    operations = [
+        migrations.RunPython(
+            seed_categories,
+            remove_categories,
+        ),
+    ]