[add]: timestamp fix

app/models/transaction.py

@@ -3,6 +3,7 @@ from app.extensions import db
 from app.models import account
 from sqlalchemy.exc import IntegrityError
 from sqlalchemy import and_, or_, not_
+from sqlalchemy.sql import func
 
 class Transaction(db.Model):
     __tablename__ = 'transactions'
@@ -16,9 +17,8 @@ class Transaction(db.Model):
     customer_id = db.Column(db.String(50), nullable=True)
     type = db.Column(db.String(50), nullable=False)
     channel = db.Column(db.String(50), nullable=False)
-    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())
     def __repr__(self):
         return f'<Transaction {self.id}>'