到新关联模型的Rails路由

Question

我有一个应用程序，其中有访问我的代理的家庭，我记录每次家庭访问。我在住户索引中选择住户并打开我索引中的访问模型中的访问视图来选择住户并创建新的访问我在住户的索引视图中有以下代码:

 = link_to  'Visit', new_household_visit_path(household), class: 'btn btn-mini'

Rake Routes显示:

new_household_visit GET    /households/:household_id/visits/new(.:format)    visits#new

这会把我带到一个url如下的表单:

  http://localhost:3000/households/5/visits/new

我在这个视图中设置了一个简单的表单，如下所示:

= simple_form_for [household, visit], url: new_household_visit_path  do |f|
%h2 Household: #{household.name}

现在，当我填写表单并尝试保存提交时，我得到:

 No route matches [POST] "/households/5/visits/new"

现在我确实注意到，在Rake路由我有一个GET，但不是POST，但我仍然不确定我的问题是什么?

路线。rb:

  resources :households do
    resources :visits
    resources :neighbors
  end

我将简单的表单调用改为:

= simple_form_for [household, visit], url: household_visits_path do |f|

我正在创建我的表单，但在保存时我得到错误:

Required parameter missing: household

日志显示:

Started POST "/households/8/visits" for 127.0.0.1 at 2013-06-22 07:58:34 -0400
Processing by VisitsController#create as HTML
  Parameters: {"utf8"=>"✓",    "authenticity_token"=>"HCivpI4SLQTzj2VlwibssNEw/o69jIt4J54/hjVPgJ4=", "visit"=>{"visited_on(1i)"=>"2013", "visited_on(3i)"=>"22", "visited_on(2i)"=>"6", "neighbor_id"=>"46", "starch"=>"Beans", "cereal"=>"", "option1"=>"", "items_received"=>"", "notes"=>""}, "commit"=>"Create Visit", "household_id"=>"8"}
  User Load (0.4ms)  SELECT "users".* FROM "users" WHERE "users"."id" = 1 LIMIT 1
      (0.2ms)  BEGIN
  Neighbor Load (0.8ms)  SELECT "neighbors".* FROM "neighbors" WHERE "neighbors"."id"  = 46 ORDER BY last_name ASC LIMIT 1
  (0.2ms)  ROLLBACK
  Rendered visits/_new.html.haml (129.7ms)
  Rendered visits/new.html.haml within layouts/application (136.2ms)
  Rendered text template (0.0ms) 
Completed 400 Bad Request in 1126ms (Views: 7.7ms | ActiveRecord: 0.0ms)

我相信我就要成功了

Answer 1

假设您使用的是标准路由，例如:

resources :households do
  resources :visits
end

那么你想要发送到household_visits_path而不是new_household_visit_path。

如果你运行rake routes，你可能会得到类似这样的东西:

    household_visits GET    /households/:household_id/visits(.:format)          visits#index
                     POST   /households/:household_id/visits(.:format)          visits#create
 new_household_visit GET    /households/:household_id/visits/new(.:format)      visits#new
edit_household_visit GET    /households/:household_id/visits/:id/edit(.:format) visits#edit
     household_visit GET    /households/:household_id/visits/:id(.:format)      visits#show
                     PUT    /households/:household_id/visits/:id(.:format)      visits#update
                     DELETE /households/:household_id/visits/:id(.:format)      visits#destroy

您将注意到唯一接受POST请求的是household_visits。new_household_visit仅用于GET表单