ruby on rails - Friendly id don't change slug in url -

i use friendly_id gem making slugs , globalize gem translations in rails when go show.html.erb , change language controller can't find entry. files are:

category.rb model:

# == schema information # # table name: categories # #  id          :integer          not null, primary key #  name        :string #  description :text #  slug        :string #  created_at  :datetime         not null #  updated_at  :datetime         not null #  class category < activerecord::base     validates_presence_of :name      translates :name, :description, :slug    extend friendlyid   friendly_id :name, :use => [:slugged, :globalize]      def should_generate_new_friendly_id?    name_changed?     end      has_and_belongs_to_many :sponsors    def name_with_initial     "#{name}"   end end 

categories_controller.rb (only part try find category):

...   private   def set_category     @category = category.friendly.find(params[:id])   rescue    flash[:alert] = "category don't exist."    redirect_to admin_categories_path   end ... 

when change locales on index.html.erb normal , see translations when i'm on show.html.erb page , change locales problems. make first en translation (default) , cz translation. when got to: http://localhost:3000/en/admin/categories/name-eng

than change cz link looks like: http://localhost:3000/cz/admin/categories/name-eng

only locales changed not slug , there no errors.

--- problem --- when go first cz variant link: http://localhost:3000/cz/admin/categories/name-cz

and try change en error. controller can't find because try find cz slug.

in console when change i18n slugs present.

do know why happening , how fix it? thank you!

--- edit --- works when change

@category = category.find(params[:id]) 

and link show.html.erb looks this:

<%= link_to category.name, admin_category_path(:id => category.id) %> 

but can't have te friendly id.