[add]: timestamp fix

app/models/repayment.py

@@ -4,6 +4,7 @@ from app.extensions import db
 from app.models.customer import Customer
 from app.models.loan import Loan
 from sqlalchemy.exc import IntegrityError
+from sqlalchemy.sql import func
 
 
 class Repayment(db.Model):
@@ -17,8 +18,8 @@ class Repayment(db.Model):
     loan_id = db.Column(db.String(50), nullable=False)
     customer_id = db.Column(db.String(50), nullable=False)
     product_id = db.Column(db.String(20), nullable=True)
-    created_at = db.Column(db.DateTime, default=datetime.now(timezone.utc))
-    updated_at = db.Column(db.DateTime, default=datetime.now(timezone.utc), onupdate=datetime.now(timezone.utc))
+    created_at = db.Column(db.DateTime(timezone=True), server_default=func.now())
+    updated_at = db.Column(db.DateTime(timezone=True), onupdate=func.now())
     transaction_id = db.Column(db.String(50), nullable=True)
 
     @classmethod