将 onClick 事件附加到 Rails 的 link_to_function

发布于 2024-07-19 00:29:12 字数 1012 浏览 5 评论 0 原文

如何将 onclick 事件附加到 link_to_function 以便单击该事件刷新页面上的元素（使用部分）？

当用户单击生成的链接时，我想刷新包含代码的部分，以便更新 i 。

 def add_step_link(form_builder)
    logger.info 'ADD_STEP_LINK'
    link_to_function 'add a step' do |page|
      form_builder.fields_for :steps, Step.new, :child_index => 'NEW_RECORD' do |f|
        logger.info 'inserted js'
        html = render(:partial => 'step', :locals => { :step_form => f, :i=>@i+=1})
        page << "$('steps').insert({ bottom: '#{escape_javascript(html)}'.replace(/NEW_RECORD/g, new Date().getTime()) });"
      end
    end
  end

我有一个更大的部分，其中仅包含：

<%= add_step_link(technique_form) %>

我正在尝试跟踪技术中的步骤数。在我创建的表单中，用户可以向一组指令添加新步骤。现在，我有步骤 1-7 的默认字段。添加一个步骤，得到步骤 8。问题是后续步骤也编号为“8”。

我正在 http://railsforum.com 中扩展“动态形式的多个子模型”教程/viewtopic.php?id=28447 出于我自己的目的。

原文

How do I attach an onclick event to a link_to_function such that clicking on the event refreshes an element on the page (using partials)?

When the user clicks the generated link, I'd like to refresh the partial containing the code so that i gets updated.

 def add_step_link(form_builder)
    logger.info 'ADD_STEP_LINK'
    link_to_function 'add a step' do |page|
      form_builder.fields_for :steps, Step.new, :child_index => 'NEW_RECORD' do |f|
        logger.info 'inserted js'
        html = render(:partial => 'step', :locals => { :step_form => f, :i=>@i+=1})
        page << "$('steps').insert({ bottom: '#{escape_javascript(html)}'.replace(/NEW_RECORD/g, new Date().getTime()) });"
      end
    end
  end

I have a partial in a larger form that contains just:

<%= add_step_link(technique_form) %>

I am attempting keeping track of the number of steps in a technique. In the form I am creating, users can add new steps to a set of instructions. Right now, I have default fields for steps 1-7. Adding one step, gets you step 8. The problem is that subsequent steps are numbered '8' also.

I am extending the "Multiple child models in a dynamic form" tutorial in http://railsforum.com/viewtopic.php?id=28447 for my own purposes.