Piwik\ViewDataTable\Manager::getViewDataTableParameters PHP Method

    public static function getViewDataTableParameters($login, $controllerAction)
    {
        $paramsKey = self::buildViewDataTableParametersOptionKey($login, $controllerAction);
        $params = Option::get($paramsKey);
        if (empty($params)) {
            return array();
        }
        $params = json_decode($params);
        $params = (array) $params;
        // when setting an invalid parameter, we silently ignore the invalid parameter and proceed
        $params = self::removeNonOverridableParameters($controllerAction, $params);
        return $params;
    }

 public function test_clearUserViewDataTableParameters_shouldOnlyRemoveAUsersParameters()
 {
     ViewDataTableManager::saveViewDataTableParameters('mylogin1', 'API.get1', array('flat' => 1));
     ViewDataTableManager::saveViewDataTableParameters('mylogin1', 'API.get2', array('flat' => 1));
     ViewDataTableManager::saveViewDataTableParameters('mylogin2', 'API.get3', array('flat' => 1));
     ViewDataTableManager::saveViewDataTableParameters('mylogin1', 'API.get4', array('flat' => 1));
     ViewDataTableManager::saveViewDataTableParameters('mylogin3', 'API.get5', array('flat' => 1));
     $this->assertNotEmpty(ViewDataTableManager::getViewDataTableParameters('mylogin1', 'API.get1'));
     $this->assertNotEmpty(ViewDataTableManager::getViewDataTableParameters('mylogin1', 'API.get2'));
     $this->assertNotEmpty(ViewDataTableManager::getViewDataTableParameters('mylogin2', 'API.get3'));
     $this->assertNotEmpty(ViewDataTableManager::getViewDataTableParameters('mylogin1', 'API.get4'));
     $this->assertNotEmpty(ViewDataTableManager::getViewDataTableParameters('mylogin3', 'API.get5'));
     ViewDataTableManager::clearUserViewDataTableParameters('mylogin1');
     $this->assertEmpty(ViewDataTableManager::getViewDataTableParameters('mylogin1', 'API.get1'));
     $this->assertEmpty(ViewDataTableManager::getViewDataTableParameters('mylogin1', 'API.get2'));
     $this->assertEmpty(ViewDataTableManager::getViewDataTableParameters('mylogin1', 'API.get4'));
     $this->assertNotEmpty(ViewDataTableManager::getViewDataTableParameters('mylogin2', 'API.get3'));
     $this->assertNotEmpty(ViewDataTableManager::getViewDataTableParameters('mylogin3', 'API.get5'));
 }