[Zope-dev] Dependencies and future of zope 3

[Roger Ineichen]

Hi Martijn
 
> Betreff: Re: [Zope-dev] Dependencies and future of zope 3
> 
> Hi there,
> Roger Ineichen wrote:
> [snip]
> > Is someone willing to help doing that task? 
> 
> I'm very interested in this topic as well, especially from 
> the perspective of Grok of course.

That whould be great. I'll let you know if I have something ready
for review or like to discuss new topics about dependency refactoring.

> There are many strategies to go ahead in doing this. I'll 
> list just one observation I've had here.
> 
> One observation is that the pattern of '.browser' subpackages 
> tends to expand the dependency structure significantly. Often 
> you want to use non-browser functionality and don't care 
> about the UI that ships with .browser. At the same time 
> .browser tends to add dependencies to the overall package.
> 
> Other times (such as for zope.app.form.browser) the main 
> reusable functionality of a package is actually almost 
> completely in the .browser sub package. It might be nicer to 
> flatten the namespace then and move things from .browser into 
> the main package.
> 
> It might therefore make sense to review packages one by one, 
> and see whether zope.foo.browser can be factored out into a 
> zope.fooui package or something like that. Of course the 
> question remains how we can get from A to B without a major 
> breakage in backwards compatibility then.

Good point, that will be a lot of work. 

The menu/menu item supported by the ZCML directive and
the browser:page built in menu option is also a nesty
part if it comes to dependencies. 

Right now I use zc.configuration to exclude every browser 
configuration from the zope.app* core packages and use my 
own management views if I need them. But I'm looking forward
to use the zope.* packages without any exclude tweak.

Regards
Roger Ineichen

> Regards,
> 
> Martijn
> 
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