Building a GUI agnostic database application
bkelley at wi.mit.edu
Wed Dec 3 12:48:32 CET 2003
Uwe Grauer wrote:
> Take at look at PAF http://www.dctools.org
> Rasjid Wilcox wrote:
>> I am wanting to write a database application using Python.
>> I want it to be GUI agnostic. The GUI will probably be
>> Python/wxPython, but
>> I would also like the option of a Webbased (PHP?) gui, and possibly GUI's
>> in Java or C++, Visual Basic etc.
>> The Python 'backend' may run on the same machine as the client (thick
>> client), or on the same machine as the database (thin client).
>> My main requirements are:
>> 1. Reasonably light-weight
>> 2. Secure authentication between the GUI and the backend.
>> 3. Ideally runs wherever Python runs, and at least on Linux, Mac and
Why not just make a database model that doesn't know anything about the
GUI? The model can a python compliant database driver (say odbc or
whatnot) and you can supply the proper business logic in a concise model.
Now using this database model you can control it with a webbased gui or
a wxPython gui. I don't think that there is a need to use a wire
protocol in this case to attach to your database code which itself uses
a wire protocol to attach to the database. Just consolidate your code
into a model.
This is a typical model->view->controller approach. In my experience
the best way to program this is to write the model first without using a
gui, just a lot of test cases. Once the model does what you want, hook
it up to a gui. This helps to ensure that the model works in at least
two independent environments, the python interactive environment and
also your gui code.
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