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我有這種形式,我想通過AJAX加載到視頻節目的看法:通過Ajax加載模板 - 錯誤
<%= form_for @video, :url => {:action => "update"}, :remote => true do |f| %>
<div class="field">
<%= f.text_field :topic_names, :class => "topic_field" %>
</div>
<%= f.submit "Add Topic" %>
<% end %>
我在視頻節目鑑於這種鏈接,單擊時,我想它呈現形式:
<%= link_to "Add Topics", new_topicable_path(@topicable, :format => :js), :remote => true, :id => 'edit_topics_link' %>
我把形式topicables/new.html.erb和我有topicables/new.js.erb文件,其中有:
$("<%= escape_javascript render(:file => 'topicables/new.html.erb') %>").insertAfter('.topic_holder');
$('#edit_topics_link').hide();
現在,當我單擊鏈接時,我的日誌中出現錯誤。這是我的日誌顯示:
Started GET "/topicables/new.js" for 127.0.0.1 at Sat Apr 02 03:58:52 -0700 2011
Processing by TopicablesController#new as JS
Rendered topicables/new.html.erb (0.7ms)
Rendered topicables/new.js.erb (2.6ms)
Completed in 15ms
ActionView::Template::Error (undefined method `model_name' for NilClass:Class):
1: <%= form_for @video, :url => {:action => "update"}, :remote => true do |f| %>
2: <div class="field">
3: <%= f.text_field :topic_names, :class => "topic_field" %>
4: </div>
app/views/topicables/new.html.erb:1:in `_app_views_topicables_new_html_erb___1876131309_2172772700_0'
app/views/topicables/new.js.erb:1:in `_app_views_topicables_new_js_erb__1367015167_2172792200_0'
Rendered /Library/Ruby/Gems/1.8/gems/actionpack-3.0.4/lib/action_dispatch/middleware/templates/rescues/_trace.erb (1.1ms)
Rendered /Library/Ruby/Gems/1.8/gems/actionpack-3.0.4/lib/action_dispatch/middleware/templates/rescues/_request_and_response.erb (92.5ms)
Rendered /Library/Ruby/Gems/1.8/gems/actionpack-3.0.4/lib/action_dispatch/middleware/templates/rescues/template_error.erb within rescues/layout (98.9ms)
這是怎麼回事?我怎樣才能解決這個錯誤,使表單的AJAX渲染工作?
請你展開或提供的例子嗎? – 2011-04-02 08:18:30
另外,我不確定爲什麼會發生這種情況......在視頻節目視圖中定義了「@ video」,除非它沒有在'topicables/new.html.erb'中定義的事實? – 2011-04-02 08:21:26
也可能是'render:file =>'不會在該動作的上下文中加載文件。爲什麼你不想使用'render:action =>'new''? – picardo 2011-04-02 08:37:24