cache_key = 'frm_form_templates_l'; if ( ! empty( $this->license ) ) { $this->cache_key .= md5( $this->license ); } else { $this->cache_key .= '01fd72122f4a90f15684915c729d4368'; } } /** * @since 3.06 * * @return string */ protected function api_url() { $url = self::$base_api_url . 'list'; if ( empty( $this->license ) ) { $url .= '?l=RlJFRVRFTVBMQVRFUyEhIQ%3D%3D&v=' . FrmAppHelper::plugin_version(); } return $url; } /** * @since 3.06 * * @return string[] */ protected function skip_categories() { return array(); } /** * AJAX Hook for signing free users up for a template API key * * @return void */ public static function signup() { _deprecated_function( __METHOD__, '6.20' ); } /** * @return string */ public function get_free_license() { _deprecated_function( __METHOD__, '6.20' ); return ''; } /** * Check to make sure the free code is being used. * * @since 4.09.02 * * @return bool */ public function has_free_access() { _deprecated_function( __METHOD__, '6.20' ); return true; } }