ruby-on-rails-3 – 在顶部显示simple_form错误消息

发布时间：2020-12-16 19:43:38 所属栏目：百科来源：网络整理

导读：我有以下两个_forms：用户表单 %= simple_form_for(@user,:url = @target) do |f| % % if @user.errors.any? % div id="error_explanation" h2%= pluralize(@user.errors.count,"error") % prohibited this user from being saved:/h2 ul % @user.errors.fu

我有以下两个_forms：

用户表单

<%= simple_form_for(@user,:url => @target) do |f| %>
  <% if @user.errors.any? %>
    <div id="error_explanation">
      <h2><%= pluralize(@user.errors.count,"error") %> prohibited this user from being saved:</h2>
      <ul>
      <% @user.errors.full_messages.each do |msg| %>
        <li><%= msg %></li>
      <% end %>
      </ul>
    </div>
  <% end %>

  <%= f.input :email,:label => "User Email" %>
  <%= f.input :password,:label => "User Password" %>
  <%= f.input :first_name %>
  <%= f.input :last_name %>
  <%= f.button :submit %>
<% end %>

租户形式

<%= simple_form_for(@tenant,:url => @target) do |f| %>
  <% if @tenant.errors.any? %>
    <div id="error_explanation">
      <h2><%= pluralize(@tenant.errors.count,"error") %> prohibited this tenant from being saved:</h2>

      <ul>
      <% @tenant.errors.full_messages.each do |msg| %>
        <li><%= msg %></li>
      <% end %>
      </ul>
    </div>
  <% end %>

  <%= f.input :name,:label => 'Name',:required => true %>
  <%= f.input :billing_email,:label => 'Email',:required => true %>
  <%= f.input :country,:label => 'Country',:required => true %>
  <%= f.button :submit %>
<% end %>

我从stackoverflow f.error_messages in Rails 3.0遇到了以下帖子

这里有一些方法可以通过使用f.error_messages从简单的表单返回错误消息,但是由于我不确定该方法应该被保存,所以我无法得到这个工作.任何人有任何提示？方法如下：

class StandardBuilder < ActionView::Helpers::FormBuilder
  def error_messages
    return unless object.respond_to?(:errors) && object.errors.any?

    errors_list = ""
    errors_list << @template.content_tag(:span,"There are errors!",:class => "title-error")
    errors_list << object.errors.full_messages.map { |message| @template.content_tag(:li,message) }.join("n")

    @template.content_tag(:ul,errors_list.html_safe,:class => "error-recap round-border")
  end
end

解决方法

只需添加错误：false给您的输入,这将不会清除CSS,但会清除内联错误

f.input error: false or :error => false

编辑：

从http://ruby.railstutorial.org/book/ruby-on-rails-tutorial

/app/views/shared/_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 %>

在VIEW中

<%= form_for(@user) do |f| %>
  <%= render 'shared/error_messages',object: f.object %>

  <%= f.label :name %>
  <%= f.text_field :name %>

  <%= f.label :email %>
  <%= f.text_field :email %>

  <%= f.label :password %>
  <%= f.password_field :password %>

  <%= f.label :password_confirmation,"Confirmation" %>
  <%= f.password_field :password_confirmation %>

  <%= f.submit "Create my account",class: "btn btn-large btn-primary" %>
<% end %>

（编辑：李大同）

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