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我跟隨this simple tutorial,我遵循所有步驟......但瀏覽器根本沒有顯示任何我放入fields_for
標籤的內容。Rails Screencast - 完全卡在「fields_for」
<%= form_for :activity, :url => activities_path do |f| %>
<% if @activity.errors.any? %>
<div id="error_explanation">
<h2><%= pluralize(@activity.errors.count, "error") %> prohibited this activity from being saved:</h2>
<ul>
<% @activity.errors.full_messages.each do |msg| %>
<li><%= msg %></li>
<% end %>
</ul>
</div>
<% end %>
<div class="field">
<%= f.label "Foto" %><br />
<%= f.text_field :photo %>
</div>
<div class="field">
<%= f.label "Foto per la home" %><br />
<%= f.text_field :photoHome %>
</div>
<% for info in @activity.infos %>
This is rendered<br>
<% fields_for "activity[info_attributes][]", info do |info_form| %>
This is not rendered<br>
<p>
Titolo: <%= info_form.text_field :title %>
</p>
<p>
Descrizione: <%= info_form.text_field :description %>
</p>
<% end %>
<% end %>
<p><%= submit_tag "Create activity" %></p>
<% end %>
上面的代碼的結果是這樣的:
我在想什麼?
哦,是的,這是我無知的證據! ;-) – Abramodj 2011-03-19 11:26:24
@Abramodj:我不知道 - 我在文檔中沒有看到關於<%=和<%之間區別的任何內容。另外,如果你沒有問這個問題,我不得不問。 – Marcin 2011-05-27 13:37:39