Rails 4:escape_javascript渲染部分不起作用 [英] Rails 4: escape_javascript render partial not working

问题描述

在我的Rails 4应用程序中，我试图将某些视图显示为modals(具有Bootstrap模式)，而不是常规的.html.erb视图.

In my Rails 4 app, I am trying to display some views as modals (with Bootstrap modal), instead of the regular .html.erb views.

例如，我有一个calendar模型，在控制器中有一个自定义的analysis动作:

For instance, I have a calendar model, with a custom analysis action in the controller:

def analysis
  @calendar = Calendar.find(params[:id])
  respond_to do |format|
    format.js
  end
end

按照本教程和该其他教程，我正在尝试创建以下文件:

Following what is explained in this tutorial and that other tutorial, I am trying to create the following files:

# _dialog.html.erb

<div class="modal fade" id="dialog" tabindex="-1" role="dialog"  aria-labelledby="myModalLabel" aria-hidden="true" data-backdrop="static" data-keyboard="true">
  <div class="modal-dialog">
    <div class="modal-content">
      <div class="modal-header">
        <button type="button" class="close" 
                data-dismiss="modal" 
                aria-label="Close">
                <span aria-hidden="true">&times;</span></button>
        <h3 class="modal-title"></h3>
      </div>
      <div class="modal-body">
      </div>

    </div><!-- /.modal-content -->
  </div><!-- /.modal-dialog -->
</div><!-- /.modal -->

---

# _analysis.html.erb

<p><%= @calendar.name %> Analysis</p>

---

# analysis.js.erb

// Add the dialog title
$('#dialog h3').html("Calendar Analysis");

// Render calendar analysis
$('.modal-body').html('<%= j render(:partial => 'calendars/analysis') %>');

// Show the dynamic dialog
$('#dialog').modal("show");

// Set focus to the first element
$('#dialog').on('shown.bs.modal', function () {
    $('.first_input').focus()
  })

最后但并非最不重要的一点是，我使用<%= render 'analysis' %>助手和以下链接，从呈现在日历show.html.erb视图内的_heading.html.erb部分调用了模态:

Last but not least, I call the modal from a _heading.html.erb partial, rendered inside the calendar show.html.erb view, with the <%= render 'analysis' %> helper and the following link:

<%= link_to '<i class="glyphicon glyphicon-dashboard"></i>'.html_safe, calendar_analysis_path, :remote => true, 'data-toggle' =>  "modal", 'data-target' => '#modal-window' %>

启动应用程序时，出现以下错误:

When I launch my app, I then get the following error:

undefined method `render' for #<#<Class:0x007fee248d8118>:0x007fee23577ce0>

—————

更新:我尝试了不同的方式来渲染部分内容:

UPDATE: I have tried different ways to render the partial:

• 按照此处的建议，我同时尝试了escape_javascript render和.
• 根据那里的建议，我也尝试了render_to_string而不是只是render.
• 按照另一个问题的建议，我什至尝试了使用render(:partial => 'calendars/analysis')和(render 'calendars/analysis')的不同方式来调用部分.

• As recommended here, I tried both escape_javascript render and j render.
• As recommended there, I have also tried render_to_string instead of just render.
• As recommended in that other question, I even tried different ways to call the partial, both with render(:partial => 'calendars/analysis') and (render 'calendars/analysis').

但是这些解决方案都不起作用.

But none of these solutions worked.

—————

我已经对该主题进行了大量研究，不得不说我现在很困惑.

I have done quite a lot of research on that topic and I have to say that I am confused now.

虽然上述两个教程都推荐了这种方法，但其他资源包括，请指出您不能从Rails中的资产渲染部分.

While both tutorials mentioned above recommend this approach, other sources, including this one, point out that you cannot render a partial from assets in Rails.

因此:

1. 我当前的代码有什么问题?
2. 我尝试使用的方法是否完全有意义，如果没有，我应该怎么做?

推荐答案

app/assets下的代码无法调用render.实际上，除了很少的方法外，它几乎不能调用任何东西.

The code under app/assets can not call render. Actually it can not call almost anything except a very few methods.

将其移动到app/views/somethings/analysis.js.erb

其中somethings是您的控制器名称的复数形式，因此只需将其放在_analysis.html.erb附近.

Where somethings is the name of your controller in plural form, so just put it near the _analysis.html.erb.

这篇关于Rails 4:escape_javascript渲染部分不起作用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！