[lazarus] streaming error with TIBDatabase

[Mattias Gaertner]

On Thu, 15 May 2003 17:30:36 +0200 (W. Europe Daylight Time)
Michael Van Canneyt <michael.vancanneyt at wisa.be> wrote:

> 
> 
> On Thu, 15 May 2003, Mattias Gaertner wrote:
> 
> > On Thu, 15 May 2003 17:10:23 +0200 (W. Europe Daylight Time)
> > Michael Van Canneyt <michael.vancanneyt at wisa.be> wrote:
> >
> > >
> > >
> > > On Thu, 15 May 2003, Mattias Gaertner wrote:
> > >
> > > > On Mon, 12 May 2003 07:13:09 +0800
> > > > hernan.et at pg.com wrote:
> > > >
> > > > > Hi all,
> > > > >
> > > > > At least I have confirmed that there is indeed a problem with
> > > > > TIBDatabase. Here is what I have found this weekend. Whenever you
> > > > > drop TIBDatabase control into a form, the name property is not
> > > > > there. I have put in lots of writeln in Writer.inc I found that it
> > > > > is somehow reading a property but I cannot pin down what property
> > > > > it is. Hope some Lazarus/Fpc guru out there can have a look on
> > > > > this. This problem is beyond my comprehension.
> > > >
> > > > It's a compiler bug.
> > > > When a forward defined class is used as type for a published
> > > > property, the class has no RTTI information about its properties. I
> > > > reported it as
> > > > #2492.
> > > > This is the case for TDataBase and TDBDataSet.
> > >
> > > Wouldn't the simple fix be to declare these properties in
> > > TDatabase/TDBDataset as public instead of Published, and to change
> > > them in the descendent classes as published ?
> >
> > Yes.
> 
> I've changed the FCL accordingly. db.pp and interbase.pp have been
> updated.

Great. Streaming seems to work now. At least if you delete the double
DataBase property of TIBQuery.

I have added a lazarus package InterbaseLaz for interbase. It also shows how
to create packages for the FCL.


Mattias