onSetNull property

Future<void> Function(GeneratedDatabase database)? onSetNull

The function to call before value gets set to null.

When onSetNull gets called, value retains its previous value, which may or may not be null.

This is useful when a column or columns represent a foreign key, and you need to delete the other side of a one-to-one relationship.

Implementation

final Future<void> Function(GeneratedDatabase database)? onSetNull;