fixed indentation error, and import error on action.

qrtr_account/migrations/0013_auto_20211229_1935.py

@@ -0,0 +1,24 @@
+# Generated by Django 3.2.3 on 2021-12-29 19:35
+
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('qrtr_account', '0012_slice_description'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='transaction',
+            name='is_split',
+            field=models.BooleanField(default=False),
+        ),
+        migrations.AddField(
+            model_name='transaction',
+            name='split_parent',
+            field=models.ForeignKey(blank=True, null=True, on_delete=django.db.models.deletion.CASCADE, related_name='split_children', to='qrtr_account.transaction'),
+        ),
+    ]

qrtr_account/models.py

@@ -124,7 +124,7 @@ class Transaction(models.Model):
     created_at = models.DateTimeField(auto_now_add=True)
 
     is_split = models.BooleanField(default=False)
-    split_parent = models.models.ForeignKey(Transaction, on_delete=models.CASCADE, blank=True, null=True, related_name="split_children")
+    split_parent = models.ForeignKey("Transaction", on_delete=models.CASCADE, blank=True, null=True, related_name="split_children")
 
     @property
     def qid(self):

qrtr_account/views.py

@@ -2,6 +2,7 @@ from django.shortcuts import render
 from rest_framework import viewsets, mixins
 from .models import Account, Bank, Institution, Transaction, Slice, Rule
 from rest_framework.permissions import IsAuthenticated
+from rest_framework.decorators import action
 from connection.models import Connection, ConnectionType
 from api.serializers import (AccountReadSerializer, AccountWriteSerializer,
                              BankSerializer, BankSerializerPOST,