Stephen Leake wrote:
> I've installed QtAda GPL 3.0.0 on Debian, compiled with GNAT GPL 2009.
> 
> When I run examples/qtada/sql/relational_table_model/main, it dies
> with an exception:
> 
> raised CONSTRAINT_ERROR : invalid interface conversion
> 
> In the debugger I can trace this to
> qt4-sql_relational_delegates-constructors.adb
> 
> Is there a fix for this?
> 
Stephen,

It is known problem. The only way to workaround it now is modify Qt's
sources (macro Q_OBJECT must be added in the QSqlRelationalDelegate
class declaration) and rebuild Qt.

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