New the Model’s attributes is mapped with the fields in the database,
Such as:
Class User extends CModel
{
public $username;
public $email;
}
$user = User::model()->find();
$user->save(); //even the user has no any change, it will run the save again to database.
Can we do this?
Class User extends CModel
{
protected $_attributes = array(
"username"=>"",
"email",
);
}
then we use magic method to access the username and email? with this, we can log which attribute has been changed or not. when we run update, we can know this record is changed or not, also we can only know which fields we need to update, no need to update the whole record.
That’s only a very simple example. but I think we don’t access the attribute directly is better, then we can attach more methods when accessing the data.