FIX

Question

Couldn't find Submission without an ID

这个问题困扰了我最近几天，我似乎无法解决它。当我尝试在应用程序中创建Emailinterest对象时会发生此问题。

我有两个模特。

提交
Emailinterest

对于每次提交，都可能有多个电子邮件兴趣，但电子邮件兴趣不存在

C：\滑轨\ actuirl5 \应用\控制器\ emailinterests_controller.rb

submission_id实际上是emailinterest对象的成员。 submission_id假设包含提交对象的ID值。

def create
    @emailinterest = Emailinterest.new(params[:emailinterest])
    @submission = Submission.find(params[:submission_id])

    respond_to do |format|
        if @emailinterest.save
            Notifier.emailinterest_notification(@emailinterest, @submission).deliver
            format.html { redirect_to(@emailinterest, :notice => 'Email was successfully sent!') }
            format.xml  { render :xml => @emailinterest, :status => :created, :location => @emailinterest }
        else
            format.html { render :action => "new" }
            format.xml  { render :xml => @emailinterest.errors, :status => :unprocessable_entity }
        end
    end
end

C：\滑轨\ actuirl5 \应用\视图\提交\ show.html.erb

....

<%= render :partial=>"form_new_emailinterest", :locals=>{:emailinterest=>Emailinterest.new(:submission_id=>@submission.id)} %>

C：\滑轨\ actuirl5 \应用\视图\提交

<%= form_for(emailinterest) do |f| %>

    <%= hidden_field :submission_id, :value => @submission.id %>

    <div class="field">
        <%= f.label :sender_email %><br />
        <%= f.text_field :sender_email %>
    </div>
    <div class="field">
        <%= f.label :sender_email_content %><br />
        <%= f.text_area :sender_email_content %>
    </div>
    <div class="actions">
        <%= f.submit %>
    </div>
<% end %>

FIX

C：\滑轨\ actuirl5 \应用\控制器\ emailinterests_controller.rb

def create
    @emailinterest = Emailinterest.new(params[:emailinterest])
    @submission = Submission.find(params[:submission_id])

    respond_to do |format|
        if @emailinterest.save
            Notifier.emailinterest_notification(@emailinterest, @submission).deliver
            format.html { redirect_to(@emailinterest, :notice => 'Email was successfully sent!') }
            format.xml  { render :xml => @emailinterest, :status => :created, :location => @emailinterest }
        else
            format.html { render :action => "new" }
            format.xml  { render :xml => @emailinterest.errors, :status => :unprocessable_entity }
        end
    end
end

C：\滑轨\ actuirl5 \应用\视图\ submissions_form_new_emailinterest.html.erb

<%= form_for(emailinterest) do |f| %>
    <%= hidden_field_tag :submission_id, value = @submission.id %>
    <div class="field">
        <%= f.label :sender_email %><br />
        <%= f.text_field :sender_email %>
    </div>
    <div class="field">
        <%= f.label :sender_email_content %><br />
        <%= f.text_area :sender_email_content %>
    </div>
    <div class="actions">
        <%= f.submit %>
    </div>
<% end %>

C：\滑轨\ actuirl5 \应用\视图\提交\ show.html.erb

<%= render :partial=>"form_new_emailinterest", :locals=>{:emailinterest=>Emailinterest.new} %>

Answer 1

考虑到你在show动作中设置了@submission，这应该有效：

<%= hidden_field :submission_id, :value => emailinterest.submission_id %>

然后

@submission = Submission.find(params[:emailinterest][:submission_id])

您无法在部分中访问@submission等实例变量。这就是为什么你有选择：locals。

Rails 3-“找不到没有ID的[型号]问题

FIX

1 个答案: