Question

This is my model and I’m trying to call self.red but it’s not working. Is this even possible?

# Shirt has size and color
class Shirt < ActiveRecord::Base
    scope :red, where(:color => 'red')

    def find_red
        return self.red
    end
end

Answer 1

Try Shirt.red
self.red would be an object method. scope :red is already a class method so you don’t have to write a method find_red to perform a query, Shirt.red will already do that.