get loan

app/models/loan.py

@@ -72,6 +72,10 @@ class Loan(db.Model):
     def get_loan_by_transaction_id(cls, transaction_id):
         return cls.query.filter_by(transaction_id=transaction_id).first()
 
+    @classmethod
+    def get_loan_by_debt_id(cls, debt_id):
+        return cls.query.filter_by(id=debt_id).first()
+
     @classmethod
     def set_disbursement_date(cls, loan_id, customer_id):
         """