For me, I mostly use the DAL directly in controllers.  

But, I have a few areas where there is really complicated business logic 
that is needed by multiple controller functions.  Instead of repeating that 
complicated logic in the controller, I've created classes (stored in 
/modules) that I import and execute in my controller functions.  But as I 
said, there are very few.  Out of hundreds of controller functions, 
separate classes are used in only a couple dozen.

Using the DAL directly in controller methods is a big part of why you can 
develop so quickly using web2py.

What I try to do is keep it simple.  Use the DAL directly when appropriate 
and only use classes/objects to keep from repeating yourself.

Just my 2 cents...

-Jim 

On Friday, November 18, 2016 at 7:12:52 AM UTC-6, mfarees...@gmail.com 
wrote:
>
> I understand your point now. But if controllers are accessing the DAL then 
> what goes in the models and modules? The modules will have the BO (later), 
> what else?
>

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