public function save() {
		global $wpdb;

		$bp = buddypress();

		$this->subject = apply_filters( 'messages_notice_subject_before_save', $this->subject, $this->id );
		$this->message = apply_filters( 'messages_notice_message_before_save', $this->message, $this->id );

		/**
		 * Fires before the current message notice item gets saved.
		 *
		 * Please use this hook to filter the properties above. Each part will be passed in.
		 *
		 * @since 1.0.0
		 *
		 * @param BP_Messages_Notice $this Current instance of the message notice item being saved. Passed by reference.
		 */
		do_action_ref_array( 'messages_notice_before_save', array( &$this ) );

		if ( empty( $this->id ) ) {
			$sql = $wpdb->prepare( "INSERT INTO {$bp->messages->table_name_notices} (subject, message, date_sent, is_active) VALUES (%s, %s, %s, %d)", $this->subject, $this->message, $this->date_sent, $this->is_active );
		} else {
			$sql = $wpdb->prepare( "UPDATE {$bp->messages->table_name_notices} SET subject = %s, message = %s, is_active = %d WHERE id = %d", $this->subject, $this->message, $this->is_active, $this->id );
		}

		if ( ! $wpdb->query( $sql ) ) {
			return false;
		}

		if ( ! $id = $this->id ) {
			$id = $wpdb->insert_id;
		}

		// Now deactivate all notices apart from the new one.
		$wpdb->query( $wpdb->prepare( "UPDATE {$bp->messages->table_name_notices} SET is_active = 0 WHERE id != %d", $id ) );

		bp_update_user_last_activity( bp_loggedin_user_id(), bp_core_current_time() );

		/**
		 * Fires after the current message notice item has been saved.
		 *
		 * @since 1.0.0
		 *
		 * @param BP_Messages_Notice $this Current instance of the message item being saved. Passed by reference.
		 */
		do_action_ref_array( 'messages_notice_after_save', array( &$this ) );

		return true;
	}