Question

所以我有两个flash通知，如果邮件成功保存则应该显示一个，如果创建新帖子时出错则应该显示另一个。我实施了一段时间但我刚刚意识到错误闪存没有正确显示。它显示的全部是窗口顶部的红色空白通知，而“成功保存”的通知确实正确显示。

我的控制器我有：

  def create
     @topic = Topic.new
     @topic.name = params[:topic][:name]
     @topic.description = params[:topic][:description]
     @topic.public = params[:topic][:public]

     if @topic.save
       redirect_to @topic, notice: "Topic was saved successfully."
     else
       flash.now[:alert] = "Error creating topic. Please try again."
       render :new
     end
   end

新帖子视图：

  <div class="col-md-8">
    <%= render partial: 'form', locals: { topic: @topic, post: @post } %>

  </div>
</div>

_form.html：

<%= form_for [topic, post] do |f| %>
  <% if post.errors.any? %>
  <div class="alert alert-denger">
    <h4><%= pluralize(post.errors.count, "error") %>.</h4>
    <ul>
      <% post.errors.full_messages.each do |msg| %>
        <li><%= msg %></li>
      <% end %>
    </ul>
  </div>
<% end %>
<%= form_group_tag(post.errors[:title]) do %>
    <%= f.label :title %>
    <%= f.text_field :title, class: 'form-control', placeholder: "Enter post title" %>
  <% end %>
<%= form_group_tag(post.errors[:body]) do %>
    <%= f.label :body %>
    <%= f.text_area :body, rows: 8, class: 'form-control', placeholder: "Enter post body" %>
  <% end %>
  <div class="form-group">
    <%= f.submit "Save", class: 'btn btn-success' %>
  </div>
<% end %>

Answer 1

请将它放在application.html.erb文件中。

<% flash.each do |key, value| %>
  <div class="flash <%= key %>"><%= value %></div>
<% end %>

Answer 2

尝试在flash中添加application.html.erb次按摩：

<% flash.each do |key, value| %>
  <div class="alert alert-<%= key %>">
     <%= value %>
  </div>
<% end %>

通常将其置于<%= yield %>

之上

闪存警报错误不显示Rails

2 个答案: