ruby-on-rails - 使用 haml 显示错误消息

Question

这是我的表格:

= form_for @talent do |f|

  - if @talent.errors.any?
    #error_explanation
      %h2= pluralize(@talent.errors.count, "error")
      "prohibited this user from being saved:"
         %ul - @talent.errors.full_messages.each do |msg|
           %li= msg

  = f.label :First_Name
  = f.text_field :first_name
  = f.label :Last_Name
  = f.text_field :last_name
  = f.label :City
  = f.text_field :city
  = f.label :State
  = f.text_field :state
  = f.label :Zip_code
  = f.text_field :zip_code
  = f.label :Email
  = f.text_field :email
  = f.submit "Create"

这是我的错误消息:

Illegal nesting: nesting within plain text is illegal.

Extracted source (around line #7):

4:     #error_explanation
5:       %h2= pluralize(@talent.errors.count, "error")
6:       "prohibited this user from being saved:"
7:         %ul - @talent.errors.full_messages.each do |msg|
8:           %li= msg
9: 
10:   = f.label :First_Name

我不知道我做错了什么。

Answer 1

首先，您的 %ul 行应该是单独的，其下有循环。另外，您的 %ul 行不应在上面的字符串下方缩进:

- if @talent.errors.any?
  #error_explanation
    %h2= pluralize(@talent.errors.count, "error")
    "prohibited this user from being saved:"
    %ul
      - @talent.errors.full_messages.each do |msg|
        %li= msg

但是您可能想要的是“禁止...”部分成为您的 h2 的一部分？如果是这样:

- if @talent.errors.any?
  #error_explanation
    %h2
      = pluralize(@talent.errors.count, "error")
      "prohibited this user from being saved:"
    %ul 
      - @talent.errors.full_messages.each do |msg|
        %li= msg