Not using json_encode() manually in the controller is the cleanest way.
So please see http://book.cakephp.org/2.0/en/views/json-and-xml-views.html 
on how to leverage JsonView instead
Also see http://www.dereuromark.de/2014/01/09/ajax-and-cakephp/ for 
additional information.


Am Donnerstag, 13. März 2014 12:29:42 UTC+1 schrieb wchopite:
>
> Use at the beginning of your controller function:
>
> $this->autoRender=false;
>
> Wladimir Chópite
> +584249700264
> ve.linkedin.com/in/wchopite
> "Mejor pirata de la armada". Hack the planet! 
> El 13/03/2014 06:57, "Sam" <light...@gmail.com <javascript:>> escribió:
>
>>
>>
>> On Thursday, March 13, 2014 7:21:26 PM UTC+8, wchopite wrote:
>>>
>>> Use the php function json_encode( ). 
>>>
>>> http://php.net/manual/en/function.json-encode.php
>>>
>>> You can generate an associative array with the message you want, and use:
>>>
>>> return json_encode($your_array);
>>>
>> Thanks. This worked. I can see the json message in the HTTP response. But 
>> I still have a problem. When I look at the HTTP response, it is full of 
>> other HTML code besides the json message. How can I remove the other HTML 
>> code and leave behind only a clean json message? 
>>
>> Thank you.
>>  
>>
>>> Wladimir Chópite
>>> +584249700264
>>> ve.linkedin.com/in/wchopite
>>> "Mejor pirata de la armada". Hack the planet! 
>>> El 13/03/2014 06:45, "Sam" <light...@gmail.com> escribió:
>>>
>>>> I have a controller which takes in an id and checks whether this id 
>>>> exists inside the Model. If it does not exist, I would like the controller 
>>>> to return a validation error message "id not found" in json when it 
>>>> returns 
>>>> the HTTP response. This controller takes in a normal HTTP POST which is 
>>>> not 
>>>> in json.
>>>>
>>>> How can this be done in Cakephp 2.4.5?
>>>>
>>>> My controller code looks something like this;
>>>>
>>>> public function controller_function($id=null){
>>>>     if ($this->request->is('post')) 
>>>>     {
>>>>        $field=$this->request->data['Model']['field'];
>>>>        $Model_id = $this->Model->findFieldID($field);
>>>>        if (empty($Model_id) ) //record not found. Return validation error
>>>>        {
>>>>            //Send validation error back in JSON. How??
>>>>        }
>>>>     }}
>>>>
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