显示页面上的Rails嵌套表单

Question

我正在尝试在company＃show页面上使用嵌套表格向一家公司添加地址。我可以成功添加新地址，但是在重新加载页面时，新地址的表单区域将填充现有记录。

我如何仅显示空的已建记录，而不显示现有记录？

这是在表单区域中显示的内容...

这就是我所期望的...

这是公司＃显示页面...

= form_for @company do |f|
  = f.fields_for :addresses do |t|
    .form-inline
      .col-md-2
        = t.text_field :street1, class: 'form-control form-control-sm', placeholder: 'Street 1', id: 'street1'
      .col-md-2
        = t.text_field :street2, class: 'form-control form-control-sm', placeholder: 'Street 2', id: 'street2'
      .col-md-2
        = t.text_field :apt_other, class: 'form-control form-control-sm', placeholder: 'Suite #', id: 'apt_other'
      .col-md-2
        = t.text_field :city, class: 'form-control form-control-sm', placeholder: 'City', id: 'city'
      .col-md-1
        = t.collection_select :state_id, @states, :id, :state_abbr, {:include_blank => 'State'} , {:class => 'form-control form-control-sm'}
      .col-md-2
        = t.text_field :zip, class: 'form-control form-control-sm', placeholder: 'Zip', id: 'zip'
    .form-inline
      .col-md-2
        = t.text_field :phone, class: 'form-control form-control-sm', placeholder: 'Phone', id: 'phone'
      .col-md-2
        = t.text_field :fax, class: 'form-control form-control-sm', placeholder: 'Fax', id: 'fax'
  .form-group-row
    .text-center
      .btn-group{role: 'group'}
        = f.submit 'Save', class: 'btn btn-outline-success btn-sm', style: 'margin-bottom: .5em;'

Answer 1

如果希望将其分开，则需要添加检查或条件以仅在fields_for中显示非持久性地址，或者需要在控制器中初始化新地址并仅显示该地址的表单。例如：

(typeaheadOnSelect)

然后不显示#companies_controller.rb ... def show @company = Company.find(params[:id]) @new_address = @company.addresses.build() end ... ，而应该创建一个fields_for :addresses

我认为您也可以像这样将form_for @new_address直接传递到@new_address中：

fields_for

我还没有测试过，您可能需要将其写为数组= f.fields_for :addresses, @new_address do |t|。这样做的主要目的是强制将特定的对象集合用于嵌套的[@new_address]。您还可以阅读docs on fields_for。

Answer 2

我将回答它以关闭线程。

这行是错误的。

= f.fields_for :addresses do |t|

这就是我将其更改为的

= f.fields_for :addresses, Address.new do |t|