如何在 Rails 中呈现不同格式的一部分? [英] How do I render a partial of a different format in Rails?

问题描述

我正在尝试生成包含一些 HTML 的 JSON 响应.因此，我有 /app/views/foo/bar.json.erb:

I'm trying to generate a JSON response that includes some HTML. Thus, I have /app/views/foo/bar.json.erb:

{
  someKey: 'some value',
  someHTML: "<%= h render(:partial => '/foo/baz') -%>"
}

我希望它渲染 /app/views/foo/_baz.html.erb，但它只会渲染 /app/views/foo/_baz.json.erb代码>.传递 :format =>'html' 没有帮助.

I want it to render /app/views/foo/_baz.html.erb, but it will only render /app/views/foo/_baz.json.erb. Passing :format => 'html' doesn't help.

推荐答案

基于 roninek 的回应，我发现最佳解决方案如下:

Building on roninek's response, I've found the best solution to be the following:

在/app/helpers/application.rb:

in /app/helpers/application.rb:

def with_format(format, &block)
  old_format = @template_format
  @template_format = format
  result = block.call
  @template_format = old_format
  return result
end

在/app/views/foo/bar.json:

In /app/views/foo/bar.json:

<% with_format('html') do %>
  <%= h render(:partial => '/foo/baz') %>
<% end %>

另一种解决方案是重新定义 render 以接受 :format 参数.

An alternate solution would be to redefine render to accept a :format parameter.

我无法让 render :file 与当地人一起工作，而且没有一些路径问题.

I couldn't get render :file to work with locals and without some path wonkiness.

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