渲染部分视图导致错误

Question

rails 3.2 Ruby2.1.5

我正在尝试为票证制作一个表格，其中包括多个部分。

其中一个部分称为 customer_info

在app/views/tickets/show.html.slim中，我有：

= render 'tickets/sections/customer_info', locals: { customer_info: CustomerInfo.new, ticket: @ticket }

在我的 app/views/tickets/sections/_customer_info.html.slim 中，我有：

= form_for customer_info do |f|
  - f.hidden_field :ticket_id, :value => ticket.id
  .form-horizontal-column.customer-info
    .form-group
      = f.label :pre_tax_total
      = f.text_field :pre_tax_total, maxlength: 50
    .form-group
      = f.label :post_tax_total
      = f.text_field :post_tax_total, maxlength: 50
   .actions = f.submit 'Save'
  .clear

当应用程序尝试呈现 customer_info 表单时，我收到以下错误消息：

undefined method `model_name' for NilClass:Class

当它命中表格的第一行时：

= form_for customer_info do |f|

知道怎么做吗？

Answer 1

尝试更改渲染代码

= render 'tickets/sections/customer_info', locals: { customer_info: CustomerInfo.new, ticket: @ticket }

到

= render partial: 'tickets/sections/customer_info', locals: { customer_info: CustomerInfo.new, ticket: @ticket }

如果使用 locals，请务必记得添加 partial。

Answer 2

使用这样的东西

= render 'tickets/sections/customer_info', locals: { ticket: @ticket }

和

= form_for CustomerInfo.new do |f|
  - f.hidden_field :ticket_id, :value => ticket.id
  .form-horizontal-column.customer-info
    .form-group
      = f.label :pre_tax_total
      = f.text_field :pre_tax_total, maxlength: 50
    .form-group
      = f.label :post_tax_total
      = f.text_field :post_tax_total, maxlength: 50
   .actions = f.submit 'Save'
  .clear

渲染部分视图导致错误

Rendering partial view resulting in error

ruby-on-rails

slim-lang