如何将旧的网址重定向到新的friendly_id在rails应用程序中生成的网址？

Question

我使用friendy_id来加密我的网址。我的旧的URL中使用的样子如下：

localhost:3000/search?category_id=208

现在看起来是这样的：

localhost:3000/search?category_id=metal-processing-and-machine-tool

我的控制器是这样的：

def search_equipments 
    begin 
     if (params.keys & ['category_id', 'sub_category', 'manufacturer', 'country', 'state', 'keyword']).present? 
     if params[:category_id].present? 
      @category = Category.active.friendly.find_by_friendly_id params[:category_id] 
     else 
      @category = Category.active.friendly.find_by_friendly_id params[:sub_category] if params[:sub_category].present? 
     end 
     @root_categories = Category.active.roots 
     @sub_categories = @category.children.active if params[:category_id].present? 
     @sub_categories ||= {} 
     @countries = Country.active.all 
     @manufacturers = Manufacturer.active.all 
     @states = State.active.where("country_id = ?", params[:country]) if params[:country].present? 
     @states ||= {} 
     unless params[:category_id].present? && params[:sub_category].present? 
      params[:category_id] = @category.id if params[:category_id].present? 
      params[:sub_category] = @category.id if params[:sub_category].present? 
     end 
     @equipments = Equipment.active.filter(params.slice(:manufacturer, :country, :state, :category_id, :sub_category, :keyword)).order("#{sort_column} #{sort_direction}, created_at desc").page(params[:page]).per(per_page_items)    
     else 
     redirect_to root_path 
     end 
    rescue Exception => e 
     render :file=>"#{Rails.root}/public/404.html",:status=>404 
    end 

    end 

现在我重定向老网址为404页。但是，我希望旧网址能够重定向到新的网址。我怎样才能做到这一点？我经历了一些解决方案。但是我的大控制器方法使其足够复杂，可以遵循这些解决方案。

Answer 1

你可以试试这个：

if params[:category_id].present? and params[:category_id].to_s !~ /\D/ 
     category = Category.find_by_id(params[:category_id]) 
     return redirect_to search_equipments_path(request.query_parameters.merge(category_id: category.name.parameterize)) if category.present? 

如果你有子类，你可以用相同的条件下仅改变PARAMS category到sub-category。

Answer 2

添加到您的方法search_equipments开始

if params[:category_id].present? and params[:category_id].to_s !~ /\D/ 
     category = Category.find_by_id(params[:category_id]) 
     return redirect_to search_equipments_path(category_id: category.name.parameterize) if category.present? 
    end