Create user_model.py

src/models/user_model.py

@@ -0,0 +1,28 @@
+from sqlalchemy import Column, Integer, String, DateTime
+from sqlalchemy.ext.declarative import declarative_base
+from sqlalchemy.orm import validates
+import datetime
+
+Base = declarative_base()
+
+class User(Base):
+    __tablename__ = 'users'
+
+    id = Column(Integer, primary_key=True, autoincrement=True)
+    username = Column(String(100), unique=True, nullable=False)
+    email = Column(String(100), unique=True, nullable=False)
+    password_hash = Column(String(255), nullable=False)
+    created_at = Column(DateTime, default=datetime.datetime.utcnow)
+
+    @validates('email')
+    def validate_email(self, key, email):
+        # Ensure the email is lowercased
+        return email.lower()
+
+    def __repr__(self):
+        return f"<User(id={self.id}, username={self.username}, email={self.email})>"
+
+    def __init__(self, username, email, password_hash):
+        self.username = username
+        self.email = email
+        self.password_hash = password_hash