[add]: timestamp fix

app/models/loan_charge.py

@@ -2,6 +2,7 @@ from datetime import datetime, timezone, timedelta
 from app.extensions import db
 from sqlalchemy.orm import relationship
 from app.utils.logger import logger
+from sqlalchemy.sql import func
 
 
 class LoanCharge(db.Model):
@@ -16,9 +17,8 @@ class LoanCharge(db.Model):
     description = db.Column(db.Text, nullable=True)
     due = db.Column(db.Integer, nullable=False)
     due_date = db.Column(db.DateTime, 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())
     loan = relationship(
         "Loan",
         primaryjoin="LoanCharge.loan_id == Loan.id",