orbit-basic/app/controllers/admin/links_controller.rb

class Admin::LinksController < Admin::ItemsController
  
  def show
    @item ||= Link.find(params[:id])
  end
  
  def new
    @item = Link.new
    @item.parent = Page.find(params[:parent_id]) rescue nil
    render layout: false
  end

  def edit
    @item = Link.find(params[:id])
    render layout: false
  end

  def create
    @item = Link.new(params[:link])

    if @item.save(params[:link])
      success = true
    else
      success = check_valid_url
    end
    if success
      flash.now[:notice] = t('create.success.link')
      respond_to do |format|
        format.js { render 'admin/items/reload_items' }
      end
    else
      flash.now[:error] = t('create.error.link')
      render :action => "new"
    end
  end

  def update
    @item = Link.find(params[:id])

    if @item.update_attributes(params[:link])
      success = true
    else
      success = check_valid_url
    end
    if success
      flash.now[:notice] = t('update.success.link')
      respond_to do |format|
        format.js { render 'admin/items/reload_items' }
      end
    else
      flash.now[:error] = t('update.error.link')
      render :action => "edit"
    end
  end

  protected

  def check_valid_url
    if @item.errors.include?(:url) && !@item.errors.added?(:url, :blank) && @item.errors.added?(:url, :invalid)
      begin
        url = @item.url
        url.gsub!('http://', '').slice!(/^\//)
        path = Rails.application.routes.recognize_path(url)
        if path.has_key?(:page_name)
          if Page.where(path: path[:page_name]).first
            new_url = "#{request.base_url}/#{url}"
          else
            success = false
          end
        else
          new_url = "#{request.base_url}/#{url}"
        end
        if @item.errors.count == 1
          @item.url = new_url
          if @item.save
            success = true
          else
            success = false
          end
        else
          @item.url = new_url
          success = false
        end unless success == false
      rescue
        success = false
      end
    else
      success = false
    end
    success
  end
  
end