[FLOW3-general] Ajaxable Actions / JSON as content-type

[David Schoen]

Hi Ferdinand,

thank you very much for your reply, that helped me alot. It took me some 
time now to dig into the FLOW3 sources concerning Json. I'm not sure why 
I didn't find the JsonView on my codesearch before, should have found 
it, sorry.

I tried implementing it and got some interesting behavior:

1. If I use exactly the lines you provided with a call from jQuery I 
won't get Json but html. My guess is that's because jQuery sets the 
header "Accept: application/json, text/javascript, */*; q=0.01". I'm not 
able to tell jQuery to use just "Accept: application/json". Shouldn't 
the controller choose the JsonView if the content-type is 
"application/json" and the accept-header like above? Otherwise nobody 
could use the JsonView with a jQuery.getJson-request and that would be 
sad :)

2. If I set the $supportedFormats to "json" only I would expect the 
action to use the JsonView. But it uses the TemplateView. The only way I 
can get the action to return Json in response to a jQuery-request is to 
set the $defaultViewObjectName to the JsonView and the $supportedFormats 
to "json" only.

So far I got Json working (thanks again), but can't find a way to get 
html and json in one controller because of the behavior described above.

Does this behavior make sense? I would prefer a change (like mentioned 
above) to make the JsonView work with an ordinary 
jQuery.getJson-request. I could even provide a patch. If the behavior is 
necessary the way it is could someone enlighten me? :)

Best regards,
David



Am 18.09.11 17:25, schrieb Ferdinand Kuhl:
> Hi David,
>
> just add the following two lines to your controller:
>
> protected $supportedFormats = array("html", "json");
> protected $viewFormatToObjectNameMap = array(
> 	"json" =>  "\TYPO3\FLOW3\MVC\View\JsonView",
> 	"html" =>  "\TYPO3\Fluid\View\TemplateView"
> );
>
> And have a look at the really well documented JsonView-Class. (You can
> configure the depth the objects are rendered)
>
> The controller automatically detects what the request accepts, so if your
> ajax-call (for example per jquery) explicitly asks for json, your controller
> will answer with json.
>
> Have a nice sunday,
> Ferdinand
>
> David Schoen wrote:
>
>> Hello List,
>>
>> can anyone tell me how to make an action ajaxable? I would like to call
>> an action with an JSON-request and would like to get the answer in JSON
>> so I would have to change the content-type.
>>
>> Here is what I imagine:
>>
>> /**
>> * Returns some json-object
>> * @someAnnotationToSetTheReturnTypeToJSON
>> * @return void
>> */
>> public function jsonAction() {
>> ...
>> return<someJsonObject>;
>> }
>>
>> I can't find anything about that in the documentation or the
>> blog-example. If you have any clue, tip or link, please answer :)
>>
>> Thanks in advance,
>> David
>