I'm calling a function from an abstract class that's extending Controller already.
abstract class RestController extends Controller {
public $appVersion = null;
public function checkPlugin() {
$this->config->set('config_error_display', 0);
$this->response->addHeader('Content-Type: application/json; charset=utf-8');
if (!$this->config->get('rest_api_status')) {
$json["error"] = 'API is disabled. Enable it!';
}
if(isset($json["error"])){
header("Content-Type: application/json;charset=utf-8");
echo(json_encode($json));
exit;
}
$this->validateToken();
$token = $this->getTokenValue();
$this->update_session($token['access_token'], json_decode($token['data'], true));
$headers = apache_request_headers();
//set language
$osc_lang = "";
if(isset($headers['X-Oc-Merchant-Language'])){
$osc_lang = $headers['X-Oc-Merchant-Language'];
}else if(isset($headers['X-OC-MERCHANT-LANGUAGE'])){
$osc_lang = $headers['X-OC-MERCHANT-LANGUAGE'];
}
if($osc_lang != ""){
$this->session->data['language'] = $osc_lang;
$this->config->set('config_language', $osc_lang);
$languages = array();
$this->load->model('localisation/language');
$all = $this->model_localisation_language->getLanguages();
foreach ($all as $result) {
$languages[$result['code']] = $result;
}
$this->config->set('config_language_id', $languages[$osc_lang]['language_id']);
}
if(isset($headers['X-Oc-Store-Id'])){
$this->config->set('config_store_id', $headers['X-Oc-Store-Id']);
} else if(isset($headers['X-OC-STORE-ID'])){
$this->config->set('config_store_id', $headers['X-OC-STORE-ID']);
}
$currency = "";
if(isset($headers['X-Oc-Currency'])){
$currency = $headers['X-Oc-Currency'];
} else if(isset($headers['X-OC-CURRENCY'])){
$currency = $headers['X-OC-CURRENCY'];
}
if (!empty($currency)) {
$this->currency->set($currency);
}
if(isset($headers['X-Oc-Image-Dimension'])){
$d = $headers['X-Oc-Image-Dimension'];
$d = explode('x', $d);
$this->config->set('config_rest_api_image_width', $d[0]);
$this->config->set('config_rest_api_image_height', $d[1]);
} else if(isset($headers['X-OC-IMAGE-DIMENSION'])){
$d = $headers['X-OC-IMAGE-DIMENSION'];
$d = explode('x', $d);
$this->config->set('config_rest_api_image_width', $d[0]);
$this->config->set('config_rest_api_image_height', $d[1]);
} else {
$this->config->set('config_rest_api_image_width', 500);
$this->config->set('config_rest_api_image_height', 500);
}
if(defined('VERSION')) {
$version = str_replace('.', '', VERSION);
$this->appVersion = sprintf('%-04s', $version);
} else {
$this->appVersion = 1234;
}
}
Since according to OOP you can't Cannot instantiate abstract class what I did is created a new controller class extending the abstract class.
require_once(DIR_SYSTEM . 'engine/restcontroller.php');
class ControllerRestRestApi extends RestController {
function __construct(){
//public $opencartVersion = null;
parent::__construct('checkPlugin');
$this->checkPlugin();
}
public function __get($json) {
return $this->checkPlugin($json);
}
public function __set($json, $token) {
$this->checkPlugin($json, $token);
}
//
// public function __call($methodName, $args)
// {
// call_user_func_array(array($this, $methodName), $args);
// call_user_func_array(array('parent', $methodName), $args);
// }
function parentCheckPlugin(){
// parent::checkPlugin();
echo "Say Hello";
}
}
Then I called the abstract class from the new extended controller class to call the function I wan't from the main abstract class with use of VQMod.
<operation>
<search position="before"><![CDATA[
class ControllerProductCategory extends Controller {
]]></search>
<add><![CDATA[
require_once(DIR_APPLICATION . 'controller/rest/extrestapi.php');
]]></add>
</operation>
<operation>
<search position="after"><![CDATA[
public function index() {
]]></search>
<add><![CDATA[
$checkPlugin = new ControllerRestRestApi();
$checkPlugin->parentCheckPlugin();
]]></add>
</operation>
<operation>
<search position="replace"><![CDATA[
$this->response->setOutput($this->render());
]]></search>
<add><![CDATA[
if ( $_SERVER['REQUEST_METHOD'] === 'GET' ){
$json['success'] = true;
$this->response->addHeader('Content-Type: application/json; charset=utf-8');
$this->response->setOutput(json_encode($this->data));
}else {
$this->response->setOutput($this->render());
}
]]></add>
</operation>
Now I'm testing it using Postman after I called the http and added the valid token I got an error.
Notice: Undefined property: ControllerRestRestApi::$config in /home/user/public_html/system/engine/restcontroller.php on line 10
Fatal error: Uncaught Error: Call to a member function set() on null in /home/user/public_html/system/engine/restcontroller.php:10 Stack trace:0 /home/user/public_html/catalog/controller/rest/extrestapi.php(13): RestController->checkPlugin('config')
1 /home/user/public_html/system/engine/restcontroller.php(10): ControllerRestRestApi->__get('config')
2 /home/user/public_html/catalog/controller/rest/extrestapi.php(9): RestController->checkPlugin()
3 /home/user/public_html/vqmod/vqcache/vq2-catalog_controller_product_category.php(9):
ControllerRestRestApi->__construct()
4 /home/user/public_html/vqmod/vqcache/vq2-system_engine_front.php(47):
ControllerProductCategory->index()
5 /home/user/public_html/vqmod/vqcache/vq2-system_engine_front.php(29):
Front->execute('')
6 /home/user/public_html/index.php(237): Front->dispatch(Object(Action), Object(Action))
7 {main} thrown in /home/user/public_html/system/engine/restcontroller.php on line
10
Acccording to this error it's referring to this line and all after in main abstract class function
public function checkPlugin() {
$this->config->set('config_error_display', 0);
$this->response->addHeader('Content-Type: application/json; charset=utf-8');
This same function checkPlugin() works perfectly in other controller as such
require_once(DIR_SYSTEM . 'engine/restcontroller.php');
class ControllerFeedRestApi extends RestController {
public function getInfo() {
$this->checkPlugin();
But Not the other controller I'm using and trying to achieve. What did I do wrong and how to resolve it any help please, thanks in advanced!
