[API] Corrected variable name and check

application/controllers/Api.php

@@ -440,7 +440,7 @@ class API extends CI_Controller {
 
 		$userid = $this->api_model->key_userid($obj['key']);
 
-		if(!isset($obj['station_profile_id']) || $this->stations->check_station_against_user($obj['station_profile_id'], $userid) == 0) {
+		if(!isset($obj['station_profile_id']) || $this->stations->check_station_against_user($obj['station_profile_id'], $userid) == false) {
 			http_response_code(401);
 			echo json_encode(['status' => 'failed', 'reason' => "station id does not belong to the API key owner."]);
 			die();

application/models/Stations.php

@@ -427,7 +427,7 @@ class Stations extends CI_Model {
 	public function check_station_against_user($stationid, $userid) {
 		$this->db->select('station_id');
 		$this->db->where('user_id', $userid);
-		$this->db->where('station_id', $id);
+		$this->db->where('station_id', $stationid);
 		$query = $this->db->get('station_profile');
 		if ($query->num_rows() == 1) {
 			return true;