Handle duplicate repayment attempts

app/api/services/repayment.py

@@ -57,7 +57,7 @@ class RepaymentService(BaseService):
                         return ResponseHelper.error(result_description="Failed to save repayment details.")
 
                     #Update Loan status
-                    Loan.update_status(loan_id = loan_id, status = LoanStatus.START_REPAY) # repay started bu user
+                    Loan.update_status(loan_id = loan_id, status = LoanStatus.START_REPAY) # repay started by user
                     transaction = RepaymentService.log_transaction(validated_data = validated_data)
 
                     if not transaction:

app/models/transaction.py

@@ -4,6 +4,8 @@ from app.models import account
 from sqlalchemy.exc import IntegrityError
 from sqlalchemy import and_, or_, not_
 from sqlalchemy.sql import func
+from app.api.enums import TransactionType
+
 
 class Transaction(db.Model):
     __tablename__ = 'transactions'
@@ -20,7 +22,7 @@ class Transaction(db.Model):
     phone_number = db.Column(db.String(50), nullable=True)
     created_at = db.Column(db.DateTime(timezone=True), server_default=func.now())
     updated_at = db.Column(db.DateTime(timezone=True), server_default=func.now(), onupdate=func.now())
-    
+
     def __repr__(self):
         return f'<Transaction {self.id}>'
 
@@ -30,17 +32,21 @@ class Transaction(db.Model):
         # if cls.query.filter_by(transaction_id=transaction_id).first():
         #     raise ValueError("Duplicate Transaction")
 
-        if cls.query.filter( and_( cls.transaction_id ==transaction_id, cls.type==type) ).first():
-            raise ValueError("Duplicate Transaction")
-
-
+        if cls.query.filter(and_(cls.transaction_id == transaction_id, cls.type == type)).first():
+            if type == TransactionType.REPAYMENT:
+                logger.info('Repayment transaction already exists :::: But we like to continue.')
+                now = datetime.now()
+                type = TransactionType.REPAYMENT + '.'+ now.strftime("%Y%m%d%H%M%S")
+                logger.info('Modify Type  :::: {0}'.format(type))
+            else:
+                raise ValueError("Duplicate Transaction")
 
         transaction = cls(
-            transaction_id = transaction_id,
-            customer_id = customer_id,
-            account_id = account_id,
-            type = type,
-            channel = channel,
+            transaction_id=transaction_id,
+            customer_id=customer_id,
+            account_id=account_id,
+            type=type,
+            channel=channel,
             created_at=datetime.now(timezone.utc),
             updated_at=datetime.now(timezone.utc)
         )
@@ -54,4 +60,4 @@ class Transaction(db.Model):
 
     @classmethod
     def get_transaction_by_id(cls, transaction_id):
-        return cls.query.get(transaction_id)
+        return cls.query.get(transaction_id)