Rails 3.2 - 嵌套的资源传递ID [英] Rails 3.2 - Nested Resource Passing ID

问题描述

好吧，我的协会是：

  Outlet  - > has_many：监控
监控 - > belongs_to：outlet 
  

我的路线：

  resources：outlets做
资源：监控
结束
  

查看：

 <％= link_to new_outlet_monitoring_path（@outlet）％> 
  

当我点击链接时，日志显示outlet_id作为参数传递到新页面正确。
但是当保存监控记录时，outlet_id变为零。

有什么帮助吗？

更新：

 ＃views / monitorings / _form.html.erb 
 
 <％= form_for（@monitoring）do | f | ％GT; 
< h2>监控类型< / h2> 
< fieldset data-role =controlgroup> 
< div class =radio-group> 
 <％= f.radio_button：mtype，Full％><％= f.label：mtype，Full，value：Full％> 
<％= f.radio_button：mtype，Partial％><％= f.label：mtype，Partial，value：Partial％> 
<％= f.radio_button：mtype，None％><％= f.label：mtype，None，value：None％> 
< / div> 
< / fieldset> 
< hr> 
<％= f.submit下一步％> 
<％end％> 
  

和控制器：

 ＃controllers / monitoring_controller.rb 
 
 
 def new 
 @monitoring = Monitoring.new 
 
 respond_to do | format | 
 format.html＃new.html.erb 
 format.json {render json：@monitoring} 
 end 
 end 
 
 def create 
 @monitoring = Monitoring.new（params [：monitoring]）
 
 respond_to do | format | 
 if @ monitoring.save 
 format.html {redirect_to @monitoring，notice：'Monitoring was successfully created。'} 
 format.json {render json：@monitoring，status：：created， location：@monitoring} 
 else 
 format.html {render action：new} 
 format.json {render json：@ monitoring.errors，status：：unprocessable_entity} 
 end 
 end 
 end 
  

解决方案

这很可能是您创建新监控记录方式的一个问题。我们能否看到您的表单和您的创建控制器操作？

Okay so my associations are:

Outlet -> has_many :monitorings
Monitoring -> belongs_to :outlet

My Routes:

resources :outlets do
   resources :monitorings
end

View:

<%= link_to new_outlet_monitoring_path(@outlet) %>

When I click the link, the logs show that the outlet_id is passed as a parameter to the new page correctly. But when saving the monitoring record, the outlet_id becomes nil.

Any help?

UPDATE:

# views/monitorings/_form.html.erb  

<%= form_for(@monitoring) do |f| %>
<h2>Type of Monitoring</h2>
<fieldset data-role="controlgroup" >
    <div class="radio-group">
      <%= f.radio_button :mtype, "Full" %><%= f.label :mtype, "Full", value: "Full" %>
      <%= f.radio_button :mtype, "Partial" %><%= f.label :mtype, "Partial", value: "Partial" %>
      <%= f.radio_button :mtype, "None" %><%= f.label :mtype, "None", value: "None" %>
    </div>
</fieldset>
<hr>
<%= f.submit "Next Step" %>
<% end %>

And the controller:

# controllers/monitoring_controller.rb  


def new
    @monitoring = Monitoring.new

    respond_to do |format|
      format.html # new.html.erb
      format.json { render json: @monitoring }
    end
end

def create
  @monitoring = Monitoring.new(params[:monitoring])

  respond_to do |format|
    if @monitoring.save
      format.html { redirect_to @monitoring, notice: 'Monitoring was successfully created.' }
      format.json { render json: @monitoring, status: :created, location: @monitoring }
    else
      format.html { render action: "new" }
      format.json { render json: @monitoring.errors, status: :unprocessable_entity }
    end
  end
end

解决方案

This is most likely an issue with the way you are creating the new monitoring record. Can we see your form and your create controller action?

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