feat: add billing pricing rules

2026-07-02 15:28:19 +08:00
parent cbc56ee15d
commit 826f5f685b
14 changed files with 548 additions and 34 deletions
@@ -0,0 +1,51 @@
+# Generated by Django 5.2.15 on 2026-07-02 07:09
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('billing', '0001_initial'),
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name='ExchangeRate',
+            fields=[
+                ('id', models.BigAutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('currency', models.CharField(default='CNY', max_length=10)),
+                ('points_per_unit', models.DecimalField(decimal_places=4, max_digits=12)),
+                ('is_active', models.BooleanField(default=True)),
+                ('effective_from', models.DateTimeField()),
+                ('note', models.CharField(blank=True, max_length=255)),
+                ('created_at', models.DateTimeField(auto_now_add=True)),
+                ('updated_at', models.DateTimeField(auto_now=True)),
+            ],
+            options={
+                'db_table': 'exchange_rate',
+                'ordering': ('-effective_from', '-id'),
+                'indexes': [models.Index(fields=['currency', 'is_active', 'effective_from'], name='exchange_ra_currenc_d69abe_idx')],
+                'constraints': [models.CheckConstraint(condition=models.Q(('points_per_unit__gt', 0)), name='exchange_rate_points_per_unit_positive')],
+            },
+        ),
+        migrations.CreateModel(
+            name='PricingRule',
+            fields=[
+                ('id', models.BigAutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('operation_type', models.CharField(choices=[('title', 'Generate title'), ('image', 'Generate image')], max_length=32)),
+                ('alias', models.CharField(max_length=64)),
+                ('resolution', models.CharField(blank=True, default='', help_text='Leave blank to apply to every resolution for this alias.', max_length=32)),
+                ('points_cost', models.BigIntegerField()),
+                ('is_active', models.BooleanField(default=True)),
+                ('created_at', models.DateTimeField(auto_now_add=True)),
+                ('updated_at', models.DateTimeField(auto_now=True)),
+            ],
+            options={
+                'db_table': 'pricing_rule',
+                'ordering': ('operation_type', 'alias', 'resolution'),
+                'indexes': [models.Index(fields=['operation_type', 'alias', 'is_active'], name='pricing_rul_operati_580547_idx'), models.Index(fields=['operation_type', 'alias', 'resolution', 'is_active'], name='pricing_rul_operati_52be66_idx')],
+                'constraints': [models.UniqueConstraint(fields=('operation_type', 'alias', 'resolution'), name='unique_pricing_rule_per_alias_resolution'), models.CheckConstraint(condition=models.Q(('points_cost__gt', 0)), name='pricing_rule_points_cost_positive')],
+            },
+        ),
+    ]