Question

是否可以使用f.label中的道具名称显示错误消息？

我想显示＆＃34; abc无效＆＃34;而不是＆＃34;电子邮件无效＆＃34;，＆＃34; xyz太短（最少是6个charachtars）＆＃34;而不是＆＃34;密码太短（最少是6个charachtars）＆＃34;。

模型\ user.rb

class User < ActiveRecord::Base
.
.
.
  validates :email, presence: true, format: { with: VALID_EMAIL_REGEX }, uniqueness: { case_sensitive: false }
  validates :password, length: { minimum: 6 }
.
.
.
end

new.html.erb

<div class="row">
  <div class="form-space">
  <%= form_for(@user) do |f| %>
    <%= render 'shared/error_messages', object: f.object %>
    <%= render 'fields', f: f %>
    <br>
    <%= f.submit "create", class: "btn btn-warning" %>
  </div>
  <% end %>
</div>

_fields.html.erb

<%= f.label :email, "abc" %>
<%= f.text_field :email %>

<%= f.label :password, "xyz" %>
<%= f.password_field :password %>

_error_messages.html.erb

<% if object.errors.any? %>
  <div id="error_explanation">
    <div class="alert alert-error">
      The form contains <%= pluralize(object.errors.count, "error") %>.
    </div>
    <ul>
    <% object.errors.full_messages.each do |msg| %>
      <li>* <%= msg %></li>
    <% end %>
    </ul>
  </div>
<% end %>

Answer 1

您可以使用I18n翻译文件（config/locales/en.yml）来“翻译”这些名称。显示错误消息时，ActiveRecord将首先查找activerecord.attributes.user.email条目，然后默认为该字段的名称。

en:
  activerecord:
    attributes:
      user:
        email: "abc"
        password: "xyz"

Rails 4：如何使用f.label中的prop名称显示错误消息

1 个答案: