append_row
Description:
Appends a row to the data model (the new row will possibly have NULL values for all columns, or some other values depending on the data model implementation)
Upon errors -1 will be returned and throws will be assigned a Error from the DataModelError domain.
Parameters:
| this |
a DataModel object. |
Returns:
|
the number of the added row, or -1 if an error occurred |