ruby-on-rails-3attr-accessorattr-accessible

Specify attribute list in attr_accessor with method call

I want to create large number of attributes which can be done with ease if constructed with method call like this,

 attr_accessor :attr_list 

 def attr_list
   [:x1, :y1, :x2, :y2]   
 end

This is not working. Is there any other way to achieve this?

Any help will be appreciated.

Solution

  • Figured it out,

    def self.attr_list
 [:x1, :y1, :x2, :y2]   
end

attr_accessor *attr_list

    Explanation:

    As attr_accessor is a method call which expects parameters list. So we can not pass array as it is. (*) will convert array into parameters list.

    Just need to define a class method returning array of attribute list passed to attr_accessor.

    Works well with attr_accessible(or anything similar) as well.