Jul 13 - Optimize code

app/models/review.py

@@ -1,5 +1,6 @@
 """Seller reviews — left by buyers after a listing is marked sold."""
 from datetime import datetime
+from app.utils.time import utcnow
 from app.extensions import db
 
 
@@ -16,7 +17,7 @@ class Review(db.Model):
                           db.ForeignKey("users.id"), nullable=False, index=True)
     rating = db.Column(db.SmallInteger, nullable=False)   # 1–5
     body = db.Column(db.Text, nullable=True)
-    created_at = db.Column(db.DateTime, default=datetime.utcnow, nullable=False)
+    created_at = db.Column(db.DateTime, default=utcnow, nullable=False)
 
     listing = db.relationship("Listing",
                               backref=db.backref("reviews", lazy="dynamic"))