removed secrets from the code (reom from chatgpt)

models.py

@@ -2,6 +2,7 @@ from flask_sqlalchemy import SQLAlchemy
 from flask_login import UserMixin
 from werkzeug.security import generate_password_hash, check_password_hash
 from datetime import datetime
+from sqlalchemy import func
 
 db = SQLAlchemy() # Create the extension object
 
@@ -72,12 +73,26 @@ class User(UserMixin, db.Model):
             return 0
 
 class ListOfItems(db.Model):
+    __table_args__ = (
+        db.UniqueConstraint("owner_user_id", "name", name="uq_list_owner_name"),
+    )
+
     id = db.Column(db.Integer, primary_key=True)
     updated_at = db.Column(db.TIMESTAMP, default=datetime.now(), onupdate=datetime.now(), nullable=False)
     owner_user_id = db.Column(db.Integer, nullable=False)
-    name = db.Column(db.String(40), unique=True, nullable=False)
+    name = db.Column(db.String(40), nullable=False)
     is_active = db.Column(db.Boolean, default=False)
 
+    @classmethod
+    def name_exists_for_owner(cls, owner_user_id, name, exclude_id=None):
+        query = cls.query.filter(
+            cls.owner_user_id == owner_user_id,
+            func.lower(cls.name) == name.strip().lower(),
+        )
+        if exclude_id is not None:
+            query = query.filter(cls.id != exclude_id)
+        return query.first() is not None
+
     def as_dict(self):
         result = {}
         for p in ['id','name','owner_user_id','is_active']: