[add]: define offers update

app/models/loan.py

@@ -156,6 +156,20 @@ class Loan(db.Model):
 
         return loan
 
+        @classmethod
+        def get_active_loans_by_original_transaction(cls, original_transaction_id):
+            """
+            Get all active loans with the same original_transaction ID.
+            """
+           
+            active_loans = cls.query.filter_by(
+                original_transaction=original_transaction_id,
+                # status='active'
+            ).all()
+
+            return active_loans
+
+
     @classmethod
     def update_status(cls, loan_id, status):
         """