[Zope-CMF] Re: Multiple GS profiles per product

[Hanno Schlichting]

Hi.

Maurits van Rees wrote:
> This is on Plone 3.0 with CMFQuickInstaller 2.0.4.

I think you are on the wrong list here. QuickInstaller is a part of 
Plone and not CMF and should be discussed on plone-dev. I'll give some 
responses anyways ;)

> Question 1: can I influence which profile is picked here?  Should we
> add some code to the QuickInstaller.getInstallProfile(s) methods to
> for instance prefer a profile with a name like "productname:default"?

Picking the first profile from the arbitrarily sorted list of profiles 
is obviously a shortcoming of QI. The main problem here is that QI uses 
the product name as a primary key for all its operations and thus can 
only really handle one installation record for one product. The whole 
use of extension profiles as installation procedures is a bit of a hack. 
What should really happen and which I'll do for Plone 4.0 is to remove 
the support for Extensions/Install.py and give up the one-to-one 
relationship between products and installation records. What happens in 
the end is that you apply configurations to a site - that can be as many 
as you want with extension profiles. I just don't see a way on how to 
move forward with this without a clear cut.

> Now, I tested with eXtremeManagement 1.5.2, the latest stable release,
> in case anyone wants to try it out (remember to add a Poi 1.1 bundle
> too).  That release also has Extensions/(App)Install.py files.  I
> moved those out of the way and restarted.

Why did you remove Extensions/Install.py? This one is supposed to take 
precedence over extensions profiles. In your case having one, which 
installs the GS profile you want internally should work just fine.

> Question 2: I am used to having a profiles directory in a product and
> a subdirectory inside it named 'default'.  eXtremeManagement is the
> only product I know that has a second profile next to it.  Are others
> using more than one profile?  Well, CMFPlone does a few things here.

Multiple profiles are common. I think I made the profiles/default thingy 
the default value, when you don't provide one in ZCML, but that's all 
the magic there is and should be.

> Question 3: Should we encourage programmers to only use one profile,
> presumably simply in a directory named 'profile' by default?

No. :)

> In the case of eXtremeManagement, the day is saved because it still
> has an Extensions/Install.py.  That is the installer that is actually
> executed and it has some code to run the correct profile, including a
> dependency.  The only hickup so far is that with the newer QI the name
> of the other profile is listed instead of the default profile.

That is a bug. I think someone added this code of taking the title from 
the profile, shortly before the final and I missed to review it 
properly. We should just revert those changes. If you have an 
Extensions/Install.py nothing should be read from the profile database.

Can you add a ticket for this last issue?

Hanno