命名空间嵌套资源答案

【问题标题】：Namespace nested resources命名空间嵌套资源
【发布时间】：2019-07-25 00:09:00
【问题描述】：

我的项目有以下路线：

namespace :teacher do
 resources job_applications do
   resources :job_application_addresses
 end

我的表单有以下代码

<%= simple_form_for [:teacher, @job_application_address] do |form|

<% end %>

我的控制器有以下内容：

def new
 @job_application_address = JobApplicationAddress.new
end

def create
 @job_application_address = JobApplicationAddress.new(job_application_address_params)
 @job_application_address.job_application = @job_application
   if @job_application_address.save
    flash[:success] = 'Successfully created'
   end
end

最后我得到了这个错误：

undefined method `teacher_job_application_addresses_path' for #<#<Class:0x00007fda0c4191d0>:0x00007fda143d1af8>
Did you mean?  teacher_job_application_path
               teacher_job_applications_path

Extracted source (around line #3):
<%= simple_form_for [:teacher, @job_application_address] do |form| %>

这是我查看此视图的路线：

teacher_job_application_job_application_addresses GET    /teacher/job_applications/:job_application_id/job_application_addresses(.:format)          teacher/job_application_addresses#index
                                                              POST   /teacher/job_applications/:job_application_id/job_application_addresses(.:format)          teacher/job_application_addresses#create
          new_teacher_job_application_job_application_address GET    /teacher/job_applications/:job_application_id/job_application_addresses/new(.:format)      teacher/job_application_addresses#new
         edit_teacher_job_application_job_application_address GET    /teacher/job_applications/:job_application_id/job_application_addresses/:id/edit(.:format) teacher/job_application_addresses#edit
              teacher_job_application_job_application_address GET    /teacher/job_applications/:job_application_id/job_application_addresses/:id(.:format)      teacher/job_application_addresses#show
                                                              PATCH  /teacher/job_applications/:job_application_id/job_application_addresses/:id(.:format)      teacher/job_application_addresses#update
                                                              PUT    /teacher/job_applications/:job_application_id/job_application_addresses/:id(.:format)      teacher/job_application_addresses#update
                                                              DELETE /teacher/job_applications/:job_application_id/job_application_addresses/:id(.:format)      teacher/job_application_addresses#destroy

我该怎么办？感谢您的帮助。

【问题讨论】：

请将rake routes 的结果添加到您的问题中。
感谢您的评论，我已经用我的路线更新了问题。

标签： ruby-on-rails ruby ruby-on-rails-3 ruby-on-rails-4 ruby-on-rails-5

【解决方案1】：

您的job_application_addresses 是job_application 的嵌套资源。但我没有在你的表格中看到它。你可以通过两种方式做到这一点：

您可以像这样在 simple_form_for url builder 中添加 job_application 对象

<%= simple_form_for [:teacher, @job_application, @job_application_address] do |form|

<% end %>

您可以在表单中添加一个 url 选项

<%= simple_form_for [@job_application, @job_application_address], url: teacher_job_application_job_application_addresses_path do |form|

<% end %>`

在这两种情况下，您都需要在控制器中的 new 操作中使用 @job_application object。

希望对你有帮助

【讨论】：

第二个选项确实有效，非常感谢您的帮助。