Piwik\Columns\Updater::getActionDimensions PHP Method

    private function getActionDimensions()
    {
        // see eg https://github.com/piwik/piwik/issues/8399 we fetch them only on demand to improve performance
        if (!isset($this->actionDimensions)) {
            $this->actionDimensions = ActionDimension::getAllDimensions();
        }
        return $this->actionDimensions;
    }