Constants in model

rubyonrails-talk
1

Hi,

I have a constant in Model like;

class Post < ActiveRecord::Base

  STATES = {:id => 100, :status => "public"},     {:id => 110, :status => "protected"},     {:id => 120, :status => "private"},     {:id => 130, :status => "deleted"} end

And i write a method to find elements in that STATES constant

class Post < ActiveRecord::Base

  ...

  def self.find_state(key, value)     Post::STATES.collect { |state| return state if state[:"#{key}"] == value }   end end

When I write Post.find_state('status', 'private') it brings me back that hash and i get id with the symbol of [:id].

How can I improve this? Could i use it like "Post::STATES.find(:id => 120)" or something else? or Could i use it in a named_scope like "named_scope :status"?

I need your advices.

Thanks