class Admin::PagePartsController

def create
  model.attributes = page_parts_params
  @controller_name = 'page'
  @template_name = 'edit'
  render partial: 'page_part', object: model,
         locals: { page_part_counter: params[:index].to_i }
end

def page_parts_params
  params.require(:page_part).permit(:name, :filter_id, :content)
end