categories_controller.rb~

class Admin::CategoriesController < Admin::ApplicationController
  before_filter :find_category, :only => [:show, :edit, :delete, :update,:destroy]
  
  def new
    @category = Category.new
    @parent_category = Category.where(["parent_id IS NULL"]).map{|x| [x.name, x.id ]}
  end
  
  def show
    
  end
  def index
    @categories = Category.all  
  end
  
  def create
    @category = Category.new(params[:category])
    
    if @category.save
      flash[:notice] = 'Category was succesful create' 
      redirect_to admin_categories_path
    else
      flash[:error] = 'Category Faild to create'
      render new_admin_category_path
    end
  end
  
  def find_category
    @category = Category.find_by_id(params[:id])
    if @category.nil?
      flash[:notice] = 'Article not found'
      redirect_to category_path
    end
  end
end