cadmium-org / cadmium-cms

		 * @return int|false : the number of entities or false on failure

		 */

		public function getSubtreeCount(int $parent_id = 0) {

			if (!(static::$nesting && ($parent_id >= 0))) return false;

			# Get count

			$query = $this->getCountQuery($parent_id);

			if (!(DB::send($query) && DB::getLast()->status)) return false;

			# ------------------------

			return intval(DB::getLast()->getRow()['count']);

		}

		/**

		 * Get the subtree depth

		 * @return int|false : the depth or false on failure

		 */

		public function getSubtreeDepth(int $parent_id = 0) {

			if (!(static::$nesting && ($parent_id >= 0))) return false;

			# Get depth

			$query = $this->getDepthQuery($parent_id);

			if (!(DB::send($query) && DB::getLast()->status)) return false;

			# ------------------------

			return intval(DB::getLast()->getRow()['depth']);

		}

		/**

		 * Get the entity path