[fpc-pascal] freereport and tiOPF

[Michael Van Canneyt]

On Sat, 25 Feb 2006, Graeme Geldenhuys wrote:

> tiOPF version 2 has already been converted to Free Pascal. 

Excellent news !!

> I convinced
> my client to sponsor the work for their next project, and did it
> during Desember.  Get the latest tiOPF framework from the TechInsite
> SVN repository.

This is not yet official ? The latest stable version is 1.41 ?

> 
> Regarding the persistence layers.  I only needed Firebird support, so
> started with that, but persistence layers are quick to write. Anyway,
> I started by using the SqlDB components that came with FPC.  I got it
> working, until I needed to execute a few sql statements under one
> transaction (and the sql statements had parameters).  It was a weird
> problem, I will attend to later.
> 
> I also needed Server Services, which SqlDB doesn't support and found
> another free firebird component set called FBLib (Firebird Library). 
> I created another persistence layer using these components and they
> work 100%.  I am currenty using these in my latest comercial
> application.

Any chance of donating this persistence layer to tiOPF ?

> 
> I would still like to get the SqlDB components working 100%, as it
> will be easy to add more database vendor support to the framework.
> SqlDB is similar to Delphi's dbExpress.
> 
> Peter Hinrichsen metioned the other day, that he will be using the
> Free Pascal compiler with the tiOPF framework for his first Linux
> project.  He normally uses Oracle and XML, so will most probably
> complete those persistence layers under FPC/Lazarus.

Even more excellent news :-)

> 
> Regarding the visual components.  I opted to do the same as I have
> done with Kylix and the tiOPF.  I rather use the Model-Gui-Mediator
> (MGM) pattern, to hook the tiOPF objects to standard GUI components
> instead of converting the tiOPF GUI components.  Again, converting the
> components are not difficult, it is just much easier to get cross
> platform abilities when using standard components.  You can also swap
> out other components it the need arises without issues.  Look in the
> tiOPF SVN repository under Demos for my generic mediating views I
> created.
> 
> On the reporting side.  I haven't decided what to use in my latest
> project yet.  I was going to give LazReport a go.  Under Kylix I used
> Report Manager.  There are talks about getting Report Manager to
> compile under Lazarus as well.

Lazreport is based on FreeReport (fastreport 1 or 2).
Fastreport 3 is a good engine, 2 was not very good because of 
it's extensive use of global variables, but you can create
excellent-looking reports with it.

> 
> Visit the news.techinsite.com.au  News Server if you want more support
> on tiOPF under Free Pascal and Lazarus.

Thanks for this update. You just clinched the decision to create
a new commercial application with Lazarus instead of Delphi :-)

Michael.

> 
> Regards,
>   - Graeme -
> 
> 
> 
> On 2/25/06, Michael Van Canneyt <michael at freepascal.org> wrote:
> >
> >
> > On Fri, 24 Feb 2006, Bisma Jayadi wrote:
> >
> > > Dear all,
> > >
> > > Is there possible to convert Delphi code of FreeReport and tiOPF to FPC/Lazarus?
> > > Or are there any attempts done? Any hints will be appreciated. TIA.
> >
> > I have looked at tiOPF, because I would like to use it in Lazarus myself.
> >
> > The core should compile quite easily. It's programmed quite clean, does not
> > seem to have Windows dependencies.
> >
> > The persistence layers are a different thing: IBX will compile (maybe not easily),
> > Indy 9 should, I think Marco got it running. The ADO layer not, because we don't
> > have ADO. Oracle: No idea.
> >
> > I think the best option would be to try and go for writing a new persistence layer,
> > based on SQLDB or so.
> >
> > I haven't looked at the visual components, though.
> >
> > Michael.
> >
> >
> > _______________________________________________
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> >
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