MVC (was Text database using custom properties)

[MisterX]

Dan, Dave,

Interesting. I've used MVC concepts without knowing what it was! ;)

Until I read Wiki! I love that thing!

Did the same thing with Xanadu... I thought I had an original idea
developping modular CMS stacks in HyperCard back in 1980s but now
this is really taking a dimension of it's own. 

That's the Tao, you know you're on the path or not ;)

The thing about MVC is that it is an excellent coding practice 
that applies well to rev. OK, I've never coded MVC compliant 
anything but from the wiki page, that's pretty much the attitude 
I take in TAOO or any other stack which is to do the IO, GUI and 
ouput as modular, hence as independent and disparate from the 
other.

For example: if you make an import button or add an Import menuitem
in your gui. Or why not do both? And hop, you need to have one 
handler, not different functions in the button and menu...

Another day, another stack, another import feature. Do you reuse 
that import function you used the first time or make a new one?

Somewhere, things work the same everywhere - the OOP phylosophy
helps us make that work better in Rev. Yes, not the same way as 
in C++ or real OOP languages. But Object Based Programming is 
definitely not less efficient. And Xtalk has it's object oriented
tricks that defy C++ logic :)

As the wiki page said, there remains bounds where MVC is or not 
so good. Optimal Rev coding with Object or patterns is not alien 
to rev. 

But don't try to apply them as if rev was C++ or smalltalk.

keep the good in C or ST but please use the better in rev to
make them better - C or ST compatibility is not the point - we
work at a higher level in rev - lower level objects and higher
level objects can mix but not the same...

That's the key advantage to separating objects (rev objects) into
a class of it's own. Naturally dependencies cannot be avoided but
in releasing the XOSMediaLib, I had no trouble integrating parts 
of a larger framework with distributed classes into my stack. 

Copy paste and hop!

And this little action is just like compiling C apps the old way
with Make! And I could automate it too - but foo the scripting 
time ;)... 

Pieces of gui with a logic of their own across different 
applications or cloning features across heterogeneous 
applications dealing with different objects - is in anyway
you look at them just fields, buttons and media in an interface. 

If the gui parts all speak the same language, you soon have some 
kind of synergy... I call it TAOO ;) It's not that simple but
that's the principle "way" of doing things ;)

MVC seems nice... adequate and antiquated in some cases too... 
But it enforces better coding practices such as portability, 
maintainability and other ility qualities of good software. 

I sure learned a lot from these 3 letters in just this week! ;)

Thanks for bringing it up and showing me some light in my project's
architecture... Something I can relate to or relate to others... 

cheers
Xavier

http://monsieurx.com/taoo



> -----Original Message-----
> From: use-revolution-bounces at lists.runrev.com 
> [mailto:use-revolution-bounces at lists.runrev.com] On Behalf Of 
> Dan Shafer
> Sent: Wednesday, 14 December, 2005 03:33
> To: How to use Revolution
> Subject: Re: MVC (was Text database using custom properties)
> 
> Dave....
> 
> Short answer (and admittedly over-simplistic) is that Rev 
> doesn't lend itself to MVC app design and construction. To do 
> true MVC you need an object-oriented environment, which Rev 
> decidedly is not.
> 
> If you want to take the project you describe to MVC, I 
> suggest you look at an MVC-based app framework. It'll save 
> you tons of time.
> 
> But since that's not about how to use Rev, I'll shut up now.
> 
> :-)
> 
> On 12/12/05, Dave LeYanna <dleyanna at rtl.org> wrote:
> >
> > David;
> >
> > I read a little about the benefits of using MVC but I had a little 
> > trouble mapping that paradigm to Rev. One of the major 
> issues wasn't 
> > really Rev related but really needed to be thought through 
> and I came 
> > up blank and confused
> 
> 
> 
> 
> I really would like to use MVC if I can because I am on the brink of a
> > LARGE project that needs to last a long time and go through 
> a lot of 
> > contortions by many different programmers over it's 
> lifetime. We are a 
> > non-profit and I am "converting" an old FoxPro for DOS 
> system that was 
> > started in the 80s (and still runs in a DOS window... on a 50 user 
> > network with some data access provided to 5 other offices 
> across the 
> > state.
> >
> >
> >
> --
> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> Dan Shafer, Information Product Consultant and Author 
> http://www.shafermedia.com Get my book, "Revolution: Software 
> at the Speed of Thought"
> >From http://www.shafermediastore.com/tech_main.html
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