如何在Rails中发回js.haml

问题描述：

我有一个rails create动作，该动作将文件中的一些jquery发送回去:

I have a rails create action which send back some jquery in a file:

create.js.erb

var appearance = $("<%= escape_javascript(render(:partial => @appearance)) %>").effect("highlight", {color: '#E6ff00'}, 2000);
$("#sortable").append(appearance);
$("#new_appearance")[0].reset();

我已经开始使用HAML，并且想知道我应该如何转换它.我可以使用js.haml吗? 如果是这样，标记应该是什么样?

I have started using HAML and want to know how I should be converting this. Can I use js.haml? If so what should the markup look like?

答

实际上，在HAML中返回JS非常简单，只需使用:plain过滤器并在#{}中包含要评估的任何内容即可.

Actually, returning JS in HAML is pretty easy, just use the :plain filter and enclose anything you want evaluated in #{}.

:plain
  var appearance = $("#{escape_javascript(render(:partial => @appearance)}").effect("highlight", {color: '#E6ff00'}, 2000);
  $("#sortable").append(appearance);
  $("#new_appearance")[0].reset();

请勿使用:javascript过滤器，因为它会将所有不必要的标签括在标签中.

Do not use the :javascript filter as it will enclose everything in a tag which is unnecessary.

如果需要使用一些逻辑，只需将:plain放在嵌套中即可.

If you need to use some logic, just put the :plain inside the nesting.

- if params[:printing]
  :plain
    $('#print-view').html("#{escape_javascript(render 'print_preview')}");

对不起ERB.

如何在Rails中发回js.haml

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