BP_Document_Folder::save()

	public function save() {

		global $wpdb;

		$bp = buddypress();

		$this->id            = apply_filters_ref_array( 'bp_document_id_before_save', array( $this->id, &$this ) );
		$this->user_id       = apply_filters_ref_array( 'bp_document_user_id_before_save', array( $this->user_id, &$this, ) );
		$this->blog_id       = apply_filters_ref_array( 'bp_document_blog_id_before_save', array( $this->blog_id, &$this, ) );
		$this->group_id      = apply_filters_ref_array( 'bp_document_group_id_before_save', array( $this->group_id, &$this, ) );
		$this->title         = apply_filters_ref_array( 'bp_document_title_before_save', array( $this->title, &$this, ) );
		$this->privacy       = apply_filters_ref_array( 'bp_document_privacy_before_save', array( $this->privacy, &$this, ) );
		$this->date_created  = apply_filters_ref_array( 'bp_document_date_created_before_save', array( $this->date_created, &$this, ) );
		$this->date_modified = apply_filters_ref_array( 'bp_document_date_modified_before_save', array( $this->date_modified, &$this, ) );
		$this->parent        = apply_filters_ref_array( 'bp_document_parent_before_save', array( $this->parent, &$this, ) );

		/**
		 * Fires before the current folder gets saved.
		 * Please use this hook to filter the properties above. Each part will be passed in.
		 *
		 * @param BP_Document $this Current instance of the folder being saved. Passed by reference.
		 *
		 * @since BuddyBoss 1.4.0
		 */
		do_action_ref_array( 'bp_document_folder_before_save', array( &$this ) );

		if ( 'wp_error' === $this->error_type && $this->errors->get_error_code() ) {
			return $this->errors;
		}

		// If we have an existing ID, update the folder, otherwise insert it.
		if ( ! empty( $this->id ) ) {
			$q = $wpdb->prepare( "UPDATE {$bp->document->table_name_folder} SET blog_id = %d, user_id = %d, group_id = %d, title = %s, privacy = %s, parent = %d, date_modified = %s WHERE id = %d", $this->blog_id, $this->user_id, $this->group_id, $this->title, $this->privacy, $this->parent, $this->date_modified, $this->id );
		} else {
			$q = $wpdb->prepare( "INSERT INTO {$bp->document->table_name_folder} ( blog_id, user_id, group_id, title, privacy, date_created, date_modified, parent ) VALUES ( %d, %d, %d, %s, %s, %s, %s, %d )", $this->blog_id, $this->user_id, $this->group_id, $this->title, $this->privacy, $this->date_created, $this->date_modified, $this->parent );
		}

		$q = $wpdb->query( $q ); // db call ok; no-cache ok;
		if ( false === $q ) {
			return false;
		}

		// If this is a new folder, set the $id property.
		if ( empty( $this->id ) ) {
			$this->id = $wpdb->insert_id;
		}

		/**
		 * Fires after an folder has been saved to the database.
		 *
		 * @param BP_Document $this Current instance of folder being saved. Passed by reference.
		 *
		 * @since BuddyBoss 1.4.0
		 */
		do_action_ref_array( 'bp_document_folder_after_save', array( &$this ) );

		return true;
	}