Related
The data object or list of data objects to which the current form is bound. In order to be a custom data object, a class must implement the following methods:

- schema(): Returns an array defining the objects fields and their data types. - data(): Returns an associative array of the data that this object represents. - errors(): Returns an associate array of validation errors for the current data set, where the keys match keys from `schema()`, and the values are either strings (in cases where a field only has one error) or an array (in case of multiple errors), For an example of how to implement these methods, see the `lithium\data\Entity` object.