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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