Adding ledger module

api/app/ledger/resource.py

@@ -0,0 +1,18 @@
+from datetime import date
+
+from sqlalchemy import and_, select
+from sqlalchemy.orm import aliased
+
+from transaction.models import Split, Transaction
+
+
+class LedgerResource:
+    @classmethod
+    def get_ledger(cls, session, account_id):
+        split_account = aliased(Split)
+
+        return session.exec(
+            select(Transaction, split_account).join(split_account, and_(
+                                        split_account.account_id == account_id,
+                                        Transaction.id == split_account.transaction_id
+            ))).all()