permission.rb

class Permission < ActiveRecord::Base
  extend Enumerize

  belongs_to :model_list
  belongs_to :role
  #belongs_to :user,:inverse_of => :permissions
  serialize :fields, Array


  def some_attribute
   if self.model_list.present?
     self.model_list.name.constantize.column_names.map{|c| c.to_s.split("_id").first}
      #binding.pry
   else
     ["first default"]
   end
  end

  attr_accessible :action, :role_id, :model_list_id , :user_id, :fields#, :some_attribute
  #attr_accessor :some_attribute

  enumerize :action, in: [:show, :edit]

  rails_admin do

    edit do

      configure :fields, :enum do
        #binding.pry

        enum_method do
          :some_attribute
        end

        enum do
          #binding.pry
          bindings[:object].model_list.name.constantize.column_names.map{|c| c.to_s.split("_id").first} #if bindings[:object].model_list.present?
        end

        pretty_value do
          bindings[:object].send(:some_attribute).map{|v| v.to_s.humanize.titleize }.join(', ') #if bindings[:object].model_list.present?
        end

        def form_value
          bindings[:object].send(:some_attribute) #if bindings[:object].model_list.present?
        end

        # set this to true for multi-select
        multiple do
          true
        end
    end

    end

  end




end