Model Methods

rubyonrails-talk
1

I would like to write a few custom methods for my model, but keep getting an error saying the method is not defined for the model (playing in the console).

For example, I have a product model, and I want a method called stocked? that will return 'yes' or 'no' depending on an in_stock boolean field for the model:

class Product < ActiveRecord::Base def self.stocked?    self.in_stock ? 'yes' : 'no' end end

How would I fix this?...

2

don’t think you need the ‘self’ after def.

3

That method should be an instance method instead of a class method, since you want to be able to ask each product whether it’s stocked.

Regards, Craig