[add]: timestamp fix

app/models/charge.py

@@ -1,6 +1,7 @@
 from datetime import datetime, timezone, timedelta
 from app.extensions import db
 from sqlalchemy.orm import relationship
+from sqlalchemy.sql import func
 
 
 class Charge(db.Model):
@@ -12,9 +13,8 @@ class Charge(db.Model):
     percent = db.Column(db.Float, default=0.0)
     description = db.Column(db.Text, nullable=True)
     due = db.Column(db.Integer, 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())
     offer = relationship(
         "Offer",
         primaryjoin="Charge.offer_id == Offer.id",