feat: initial work for DCA tool

app/apps/dca/migrations/0001_initial.py

@@ -0,0 +1,54 @@
+# Generated by Django 5.1.2 on 2024-11-12 01:41
+
+import django.db.models.deletion
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    initial = True
+
+    dependencies = [
+        ('currencies', '0006_currency_exchange_currency'),
+        ('transactions', '0022_rename_paused_recurringtransaction_is_paused'),
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name='DCAStrategy',
+            fields=[
+                ('id', models.BigAutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('name', models.CharField(max_length=255, verbose_name='Name')),
+                ('notes', models.TextField(blank=True, null=True, verbose_name='Notes')),
+                ('created_at', models.DateTimeField(auto_now_add=True)),
+                ('updated_at', models.DateTimeField(auto_now=True)),
+                ('payment_currency', models.ForeignKey(on_delete=django.db.models.deletion.PROTECT, related_name='dca_payment_strategies', to='currencies.currency', verbose_name='Payment Currency')),
+                ('target_currency', models.ForeignKey(on_delete=django.db.models.deletion.PROTECT, related_name='dca_target_strategies', to='currencies.currency', verbose_name='Target Currency')),
+            ],
+            options={
+                'verbose_name': 'DCA Strategy',
+                'verbose_name_plural': 'DCA Strategies',
+                'ordering': ['-created_at'],
+            },
+        ),
+        migrations.CreateModel(
+            name='DCAEntry',
+            fields=[
+                ('id', models.BigAutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('date', models.DateField(verbose_name='Date')),
+                ('amount_paid', models.DecimalField(decimal_places=8, max_digits=20, verbose_name='Amount Paid')),
+                ('amount_received', models.DecimalField(decimal_places=8, max_digits=20, verbose_name='Amount Received')),
+                ('notes', models.TextField(blank=True, null=True, verbose_name='Notes')),
+                ('created_at', models.DateTimeField(auto_now_add=True)),
+                ('updated_at', models.DateTimeField(auto_now=True)),
+                ('expense_transaction', models.ForeignKey(blank=True, null=True, on_delete=django.db.models.deletion.SET_NULL, related_name='dca_expense_entries', to='transactions.transaction', verbose_name='Expense Transaction')),
+                ('income_transaction', models.ForeignKey(blank=True, null=True, on_delete=django.db.models.deletion.SET_NULL, related_name='dca_income_entries', to='transactions.transaction', verbose_name='Income Transaction')),
+                ('strategy', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, related_name='entries', to='dca.dcastrategy', verbose_name='Strategy')),
+            ],
+            options={
+                'verbose_name': 'DCA Entry',
+                'verbose_name_plural': 'DCA Entries',
+                'ordering': ['-date'],
+            },
+        ),
+    ]