如何从Rails控制台中的ActiveRecord类访问此哈希？

Question

I have a simple hash I created to make it easier to do dictionary type lookups. For instance:

class Numbers < ActiveRecord::Base

   MY_TYPES {
      one: => 1,
      two: => 2
   }

end

Is it not possible in the rails console to access this hash via Numbers.MY_TYPES[:one] ?

Answer 1

Try

Numbers::MY_TYPES[:one]

Why: MY_TYPES is not a method of class Numbers. It is a constant. So you use Numbers::MY_TYPES as the reference