hellboy insert return.js

var _putItem = function (item, shouldCreateNewItem, shouldReturnInformationFromJoinedTable) {
	return knex(...).update()
	.then(function(affectedRows) {
		if (affectedRows == 0 && shouldCreateNewItem) return knex.insert(...);
		else if (shouldReturnInformationFromJoinedTable) return knex(...). ....leftJoin(..).select().first()
		else return true;
		})
	}