add new database fields and migrate the data

2021-05-11 07:35:56 +02:00
parent 2575e1e1d1
commit 5ac5f1c2d7
3 changed files with 86 additions and 1 deletions
@@ -0,0 +1,35 @@
+# Generated by Django 3.2 on 2021-05-11 05:03
+
+from django.db import migrations
+
+def separate_fees(apps, schema_editor):
+
+    Person = apps.get_model('transactions', 'Transaction')
+    for tr in Transaction.objects.all():
+        if tr.amount_before_fee > 0:
+            tr.crypto_fee = tr.amount_before_fee - tr.amount_after_fee
+            tr.crypto_amount = tr.amount_before_fee
+            tr.transaction_type = 'B'
+        elif tr.amount_before_fee < 0:
+            tr.crypto_fee = -1 * tr.amount_before_fee + tr.amount_after_fee
+            tr.crypto_amount = -1 * tr.amount_before_fee
+            tr.transaction_type = 'S'
+        else:
+            tr.crypto_fee = 0
+            tr.crypto_amount = 0
+            tr.transaction_type = 'T'
+
+        tr.fiat_amount = tr.amount
+        tr.fiat_fee = 0
+
+        tr.save()
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('transactions', '0003_auto_20210511_0703'),
+    ]
+
+    operations = [
+        migrations.RunPython(separate_fees),
+    ]