Question

用户提交搜索后，我无法重定向到模型显示页面。搜索有两种方式。它搜索数据库以查看ETF是否存在。如果没有，它会抓取数据的网页并将其保存在数据库中。搜索表单的路由是http://localhost:3000/search_etfs这是控制器：

类EtfsController＆lt; ApplicationController中

  def search
    if params[:etf]
      @etf = Etf.find_by_ticker(params[:etf])
      @etf ||= Scraper.new_from_lookup(params[:etf])
    end
    if @etf.present?
      redirect_to @etf
    else
      puts "ETF was not found."
    end
  end

  def show
    @etf = Etf.find(params[:id])
    @top_holdings = @etf.top_holdings
    @country_weights = @etf.country_weights
    @sector_allocations = @etf.sector_allocations
  end

end

终端意味着它应该重定向到相应的ETF显示页面。然而，该网页没有转到新的相应网址

Started GET "/etfs/2" for ::1 at 2017-04-30 11:27:34 -0400
Processing by EtfsController#show as JS
  Parameters: {"id"=>"2"}
  User Load (0.2ms)  SELECT  "users".* FROM "users" WHERE "users"."id" = ? ORDER BY "users"."id" ASC LIMIT ?  [["id", 1], ["LIMIT", 1]]
  Etf Load (0.1ms)  SELECT  "etfs".* FROM "etfs" WHERE "etfs"."id" = ? LIMIT ?  [["id", 2], ["LIMIT", 1]]

  Rendering etfs/show.html.erb within layouts/application

  TopHolding Exists (0.1ms)  SELECT  1 AS one FROM "top_holdings" WHERE "top_holdings"."etf_id" = ? LIMIT ?  [["etf_id", 2], ["LIMIT", 1]]
  TopHolding Load (0.2ms)  SELECT "top_holdings".* FROM "top_holdings" WHERE "top_holdings"."etf_id" = ?  [["etf_id", 2]]
  SectorAllocation Exists (0.2ms)  SELECT  1 AS one FROM "sector_allocations" WHERE "sector_allocations"."etf_id" = ? LIMIT ?  [["etf_id", 2], ["LIMIT", 1]]
  SectorAllocation Load (0.2ms)  SELECT "sector_allocations".* FROM "sector_allocations" WHERE "sector_allocations"."etf_id" = ?  [["etf_id", 2]]
  CountryWeight Exists (0.2ms)  SELECT  1 AS one FROM "country_weights" WHERE "country_weights"."etf_id" = ? LIMIT ?  [["etf_id", 2], ["LIMIT", 1]]
  CountryWeight Load (0.3ms)  SELECT "country_weights".* FROM "country_weights" WHERE "country_weights"."etf_id" = ?  [["etf_id", 2]]

  Rendered etfs/show.html.erb within layouts/application (14.5ms)
Completed 200 OK in 148ms (Views: 130.6ms | ActiveRecord: 1.4ms)

以下是路线：

  root 'welcome#index'
  get 'search_etfs', to: 'etfs#search'
  get '/etfs/:id', to: 'etfs#show', as: 'etf'

理想情况下，我会将网址设为http://localhost:3000/search_etfs?=SPY，以显示搜索到的ETF的展示位置。

添加更多信息以回应@Robikul：

我的搜索表单是通过ajax完成的：

<%= form_tag search_etfs_path, remote: true, method: :get, id: 'etf-lookup-form' do %>

Answer 1

从您的日志Processing by EtfsController#show as JS开始，它似乎是ajax request。请求的格式为js而非html，这就是redirect无效的原因。

如果成功，您可以创建一个search.js.erb文件，通过javascript使用window.location = "etf/<%=@etf.id%>"处理重定向。您的控制器必须具有@etf变量。

或者您可以在控制器中替换redirect_to @etf

中尝试以下代码段

render js: "window.location = '#{etf_path(@eft)}'"

搜索后重定向到显示页面 - Rails

1 个答案: