ruby-on-rails - Ruby 可枚举收集数组仍然显示在列表末尾

Question

我正在使用 Ruby 可枚举来从另一个模型创建数组。方法“companyattending”

class Conference < ActiveRecord::Base
  has_many :accountconferences
  has_many :accounts, :through => :accountconferences
  accepts_nested_attributes_for :accounts

  def companiesattending
    accounts.collect {|f| f.name }
  end

end

奇怪的是，当我将其放入 View 中时，我得到了预期的项目列表，然后列表末尾的数组成员仍然在数组中:

查看结果

    <ul style="list-style-type: none;">
        <li>Company 1</li>
    </ul>

    <ul style="list-style-type: none;">
        <li>Company 2</li>
    </ul>
[&quot;3point5.com&quot;, &quot;Company&quot;, &quot;5.1&quot;, &quot;A O Coolers&quot;, &quot;Abo Gear&quot;, &quot;Access Fund&quot;, &quot;AceCamp.com&quot;, &quot;ACORN&quot;

/app/views/conferences/_accounts.html.erb

<div class="span5">
<h3 class="pull-left">Companies That Are Attending</h3></br></br></br>
 <%= @accounts.each do |f|%>
    <ul style="list-style-type: none;">
        <li><%= f %></li>
    </ul>
 <% end %>
</div>

/app/models/conferences.rb(显示操作)

  def show
    @conference = Conference.find(params[:id])
    @accounts = @conference.companiesattending  
  end

我错过了什么？

Answer 1

而不是:

<%= @accounts.each do |f|%>

在没有=的情况下使用它:

<% @accounts.each do |f|%>

= 是您的代码显示数组的原因。