/**
* Create JSON response
*
* Encodes and returns data to JSON. Content-Type header set to
* 'application/json', and disables layouts and viewRenderer (if being
* used).
*
* @param mixed $data
* @param boolean $keepLayouts
* @param boolean|array $keepLayouts
* NOTE: if boolean, establish $keepLayouts to true|false
* if array, admit params for Zend_Json::encode as enableJsonExprFinder=>true|false
* if $keepLayouts and parmas for Zend_Json::encode are required
* then, the array can contains a 'keepLayout'=>true|false
* that will not be passed to Zend_Json::encode method but will be passed
* to Zend_View_Helper_Json
* @throws EvHttp_Controller_Action_Helper_Json
* @return string
*/
public function encodeJson($data, $keepLayouts = false)
{
/**
* @see Zend_View_Helper_Json
*/
require_once 'Zend/View/Helper/Json.php';
$jsonHelper = new Zend_View_Helper_Json();
$data = $jsonHelper->json($data, $keepLayouts);
if (!$keepLayouts) {
/**
* @see EvHttp_Controller_Action_HelperBroker
*/
require_once 'EvHttp/Controller/Action/HelperBroker.php';
EvHttp_Controller_Action_HelperBroker::getStaticHelper('viewRenderer')->setNoRender(true);
}
return $data;
}
/**
* Prepare data for autocompletion
*
* @param mixed $data
* @param boolean $keepLayouts
* @return string
*/
public function prepareAutoCompletion($data, $keepLayouts = false)
{
if (!$data instanceof Zend_Dojo_Data) {
require_once 'Zend/Dojo/Data.php';
$items = array();
foreach ($data as $key => $value) {
$items[] = array('label' => $value, 'name' => $value);
}
$data = new Zend_Dojo_Data('name', $items);
}
if (!$keepLayouts) {
require_once 'EvHttp/Controller/Action/HelperBroker.php';
EvHttp_Controller_Action_HelperBroker::getStaticHelper('viewRenderer')->setNoRender(true);
require_once 'Zend/Layout.php';
$layout = Zend_Layout::getMvcInstance();
if ($layout instanceof Zend_Layout) {
$layout->disableLayout();
}
}
$response = EvHttp_Controller_Front::getInstance()->getResponse();
$response->setHeader('Content-Type', 'application/json');
return $data->toJson();
}
/**
* Encode data to JSON
*
* @param mixed $data
* @param bool $keepLayouts
* @throws EvHttp_Controller_Action_Exception
* @return string
*/
public function encodeJson($data, $keepLayouts = false)
{
if ($this->validateData($data)) {
return EvHttp_Controller_Action_HelperBroker::getStaticHelper('Json')->encodeJson($data, $keepLayouts);
}
/**
* @see EvHttp_Controller_Action_Exception
*/
require_once 'EvHttp/Controller/Action/Exception.php';
throw new EvHttp_Controller_Action_Exception('Invalid data passed for autocompletion');
}
/**
* Retrieve ViewRenderer
*
* @return EvHttp_Controller_Action_Helper_ViewRenderer Provides a fluent interface
*/
protected function _getViewRenderer()
{
if (null === $this->_viewRenderer) {
$this->_viewRenderer = EvHttp_Controller_Action_HelperBroker::getStaticHelper('viewRenderer');
}
return $this->_viewRenderer;
}
