blocks|key|606994|text|我做了一个自定义响应器，它总是返回JSON编码的资源，即使在PUT/POST时也是如此。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|606995|我把这个文件放在lib/responders/json_responder.rb里。您的/lib目录应自动加载。|offset|length|style|CODE|606996|module+Responders::JsonResponder
++protected

++#+simply+render+the+resource+even+on+POST+instead+of+redirecting+for+ajax
++def+api_behavior(error)
++++if+post?
++++++display+resource,+:status+=>+:created
++++#+render+resource+instead+of+204+no+content
++++elsif+put?
++++++display+resource,+:status+=>+:ok
++++else
++++++super
++++end
++end
end|code-block|syntax|javascript|606997|现在，显式修改需要此行为的控制器，或将其放入应用程序控制器中。|606998|class+ApplicationController+<+ActionController::Base

++protect_from_forgery

++responders+:json

end|606999|您现在应该在PUT上重新获得JSON编码的资源。|607000|entityMap^0|0|8|W|18|4|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|U|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|V|8|@$D|W|E|X|F|G]|$D|Y|E|Z|F|G]]|9|@]|A|$]]|$1|H|3|I|5|J|7|10|8|@]|9|@]|A|$K|L]]|$1|M|3|N|5|6|7|11|8|@]|9|@]|A|$]]|$1|O|3|P|5|J|7|12|8|@]|9|@]|A|$K|L]]|$1|Q|3|R|5|6|7|13|8|@]|9|@]|A|$]]|$1|S|3|-4|5|6|7|14|8|@]|9|@]|A|$]]]|T|$]]

I made a custom responder which always returns my JSON encoded resource even on PUT/POST.

I put this file in <code>lib/responders/json_responder.rb</code>. Your <code>/lib</code> dir should be autoloaded.

<pre><code>module Responders::JsonResponder
 protected

 # simply render the resource even on POST instead of redirecting for ajax
 def api_behavior(error)
 if post?
 display resource, :status =&gt; :created
 # render resource instead of 204 no content
 elsif put?
 display resource, :status =&gt; :ok
 else
 super
 end
 end
end
</code></pre>

Now, explicitly modify the controller which requires this behavior, or place it in the application controller.

<pre><code>class ApplicationController &lt; ActionController::Base

 protect_from_forgery

 responders :json

end
</code></pre>

You should now get JSON encoded resources back on PUT.

blocks|key|607055|text|简单地做以下事情有什么错：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|607056|def+update
++some_object+=+SomeObject.update()
++render+json:+some_object
end|code-block|syntax|javascript|607057|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

What's wrong with simply doing:

<pre><code>def update
 some_object = SomeObject.update()
 render json: some_object
end
</code></pre>

blocks|key|607153|text|只是为了澄清，你不需要响应器的gem来做这件事...你可以这样做：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|607154|config/initializers/responder_with_put_content.rb|607155|class+ResponderWithPutContent+<+ActionController::Responder
++def+api_behavior(*args,+&block)
++++if+put?
++++++display+resource,+:status+=>+:ok
++++else
++++++super
++++end
++end
end|code-block|syntax|javascript|607156|然后(对于所有受影响的更新操作)：|607157|class+ApplicationController+<+ActionController::Base
++def+self.responder
++++ResponderWithPutContent
++end
end|607158|或者在你的行动中：|607159|def+update
++foo+=+Foo.find(params[:id])
++foo.update_attributes(params[:foo])
++respond_with+foo,+responder:+ResponderWithPutContent
end|607160|entityMap^0|0|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|S|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|T|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|U|8|@]|9|@]|A|$G|H]]|$1|I|3|J|5|6|7|V|8|@]|9|@]|A|$]]|$1|K|3|L|5|F|7|W|8|@]|9|@]|A|$G|H]]|$1|M|3|N|5|6|7|X|8|@]|9|@]|A|$]]|$1|O|3|P|5|F|7|Y|8|@]|9|@]|A|$G|H]]|$1|Q|3|-4|5|6|7|Z|8|@]|9|@]|A|$]]]|R|$]]

Just to clarify, you do not need the responders gem to do this... You can just do:

<h1>config/initializers/responder_with_put_content.rb</h1>

<pre><code>class ResponderWithPutContent &lt; ActionController::Responder
 def api_behavior(*args, &amp;block)
 if put?
 display resource, :status =&gt; :ok
 else
 super
 end
 end
end
</code></pre>

and then either (for all updates actions to be affected):

<pre><code>class ApplicationController &lt; ActionController::Base
 def self.responder
 ResponderWithPutContent
 end
end
</code></pre>

or in your action:

<pre><code>def update
 foo = Foo.find(params[:id])
 foo.update_attributes(params[:foo])
 respond_with foo, responder: ResponderWithPutContent
end
</code></pre>

blocks|key|607259|text|作为一种侵入性较小的替代方法，您可以将json:选项传递给控制器update操作中的respond_with方法调用，如下所示：|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|607260|def+update
++#+...
++respond_with+some_object,+json:+some_object
end|code-block|syntax|javascript|607261|假设必须在参数中重复两次对象，这看起来有点unDRY，但它会给你想要的东西，对象在PUT请求的响应中的json表示，而且你不需要使用render+json:方法，这不会给你响应器的好处。|607262|然而，如果你有很多控制器在这种情况下，那么定制响应器，就像jpfuentes2在accepted+anwser中所显示的那样，是可行的方法。但对于一个快速的单一案例，这个替代方案可能更容易。|607263|来源：https://github.com/plataformatec/responders/pull/115#issuecomment-72517532|607264|entityMap|0|LINK|mutability|MUTABLE|url|https://github.com/plataformatec/responders/pull/115#issuecomment-72517532^0|J|5|W|6|16|C|0|0|1U|C|0|0|3|22|0|0^^$0|@$1|2|3|4|5|6|7|Y|8|@$9|Z|A|10|B|C]|$9|11|A|12|B|C]|$9|13|A|14|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|15|8|@]|D|@]|E|$I|J]]|$1|K|3|L|5|6|7|16|8|@$9|17|A|18|B|C]]|D|@]|E|$]]|$1|M|3|N|5|6|7|19|8|@]|D|@]|E|$]]|$1|O|3|P|5|6|7|1A|8|@]|D|@$9|1B|A|1C|1|1D]]|E|$]]|$1|Q|3|-4|5|6|7|1E|8|@]|D|@]|E|$]]]|R|$S|$5|T|U|V|E|$W|X]]]]

As a less invasive alternative, you can pass a <code>json:</code> option to the <code>respond_with</code> method invocation inside your controller <code>update</code> action, like this:

<pre><code>def update
 # ...
 respond_with some_object, json: some_object
end
</code></pre>

Granted it seems a bit unDRY having to repeat the object twice in the arguments, but it'll give you what you want, the json representation of the object in the response of a PUT request, and you don't need to use the <code>render json:</code> way, which won't give you the benefits of responders.

However, if you have a lot of controllers with this situation, then customizing the responders, as jpfuentes2 showed in the accepted anwser, is the way to go. But for a quick single case, this alternative may be easier.

Source: <a href="https://github.com/plataformatec/responders/pull/115#issuecomment-72517532">https://github.com/plataformatec/responders/pull/115#issuecomment-72517532</a>

blocks|key|391111|text|我不太喜欢这种行为。为了解决这个问题，我不得不避免使用respond_with方法：|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|391112|class+SomeController+<+ApplicationController
++respond_to+:json

++def+update
++++#+...
++++respond_to+do+%7Cformat%7C
++++++format.json+{+render(json:+some_object,+status:+200)+}
++++end
++end
end|code-block|syntax|javascript|391113|entityMap^0|R|C|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@$9|N|A|O|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|P|8|@]|D|@]|E|$I|J]]|$1|K|3|-4|5|6|7|Q|8|@]|D|@]|E|$]]]|L|$]]

Not a big fan of this behavior. To get around it, I had to avoid using the <code>respond_with</code> method:

<pre><code>class SomeController &lt; ApplicationController
 respond_to :json

 def update
 # ...
 respond_to do |format|
 format.json { render(json: some_object, status: 200) }
 end
 end
end
</code></pre>

I want to <code>PUT</code> to rails and avoid getting a <code>204</code>. I am using this pattern:

<pre><code>class SomeController &lt; ApplicationController
 respond_to :json

 def update
 # ...
 respond_with(some_object)
 end
end
</code></pre>

However, when I do a <code>put</code> to update, I get a <code>204</code> back. I realize this is completely valid etc, but I explicitly want the content back. I can override it to some extent like this:

<pre><code>def update
 respond_with(some_object) do |format|
 format.json{render json: some_object}
 end
end
</code></pre>

but this seems a bit too hands-on for rails. Is there any more idiomatic way of avoiding a <code>204</code> and requesting the full content to be sent back? This is Rails 3.2.

In summary: I want maximally idiomatic rails that avoids a <code>204</code>.

Simple respond_with in rails that avoids 204 from PUT

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

页面排版不美观，阅读体验差。

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我想通过PUT连接到rails，并避免使用204。我正在使用这个模式：class SomeController < ApplicationController respond_to :json def update # ... respond_with(some_object) endend然而，当我...

问rails中的简单respond_with，避免了PUT中的204
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