has_many :through and named_scope

Hi    I have the models roles, users and user_roles. The relationship among them is

user.r

user1.roles returns an array of roles. The array class has a function "include?(obj)" that returns true or false.

Something like this should work: user1.roles.include?(Role.find_by_name('admin'))

Named scopes are not ment for stuff like this. You can create a function on the user model "is_admin?" for the code above. That way if how an admin is defined changes, you only need to update the code in one place.

Better off saying !roles.find_by_name("admin").blank? Saves on SQL

Blog: http://random8.zenunit.com/ Twitter: http://twitter.com/random8r Learn: http://sensei.zenunit.com/ New video up now at http://sensei.zenunit.com/ real fastcgi rails deploy process! Check it out now!