Rails输出对象哈希 [英] Rails outputting object hash

问题描述

这很有趣。我有一些类似于以下的视图代码：

This is interesting. I have some view code that looks like this:

    <%= @cause.updates.each do |update| %>
      <div class="streamComment group">

      <img class="userPhoto" src="<%= update.user.avatar.url %>">

      <p class="userComment"><%= update.update_text %></p>
      </div>
    <% end %>

在段落标记的末尾与div标记的末尾之间，rails输出的是当视图中不存在任何更新对象时，即为< #Update 0x6993934ksf>。

Between the end of the paragraph tag and the end of the div tag, rails is outputting the hash of the update object i.e. "<#Update 0x6993934ksf>" when nothing exists there in the view. What could be causing this?

推荐答案

您在需要<％=％>的地方使用<％=％>。由于每个对象都返回迭代的对象，因此，完成更新迭代后，更新将返回并输出到HTML

Your using <%= %> where you need <% %>. Since each returns the object it iterated over, once you are done iterating over updates, updates is returned and output to the HTML

<% @cause.updates.each do |update| # remove the = at the beginning of this line %>
  <div class="streamComment group">

  <img class="userPhoto" src="<%= update.user.avatar.url %>">

  <p class="userComment"><%= update.update_text %></p>
  </div>
<% end %>

这篇关于Rails输出对象哈希的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！