[Zope-CMF] Re: GenericSetup: purging steps on new base profile

Florent Guillaume fg at nuxeo.com
Wed Feb 1 15:22:09 EST 2006

On 1 Feb 2006, at 20:45, yuppie wrote:
> Tres Seaver wrote:
>> Florent Guillaume wrote:
>>> Jens Vagelpohl wrote:
>>>> On 1 Feb 2006, at 17:30, Florent Guillaume wrote:
>>>>> When you select a new base profile in the Properties tab, the  
>>>>> toolset
>>>>> and import/export steps are not reset but simply updated. This  
>>>>> means
>>>>> you can get steps unrelated to your profile that linger.
>>>>> I'd like to change that behavior so that the toolset and steps are
>>>>> reset when a base profile is selected.
>>>> +1 (unless I misinterpret the desired behavior of switching between
>>>> base profiles)
>>> Hm a side effect is that if you select the initial base profile,  
>>> then an
>>> extension profile, then the original base profile again, you  
>>> won't have
>>> what you expect.
>>> Because the "current base profile id" is not stored, there's no  
>>> way to
>>> do detect the change to a different base profile. Should I store  
>>> that
>>> property to allow for that use case?
> Selecting a profile should never be destructive. Maybe I just want  
> to load new handlers or run a single import step.
> But why not clearing the registries if a complete base profile is  
> *applied*? Even if it is the current base profile I can't see why  
> we would not want to do that.

This would work. But I realize that there's something else I want: I  
want to be able to apply a base profile without purge. That's  
important to refresh a base profile config without touching potential  
extensions that have already been imported.

So just deciding to clean the registries when a base profile is  
applied is too restrictive.


>> Yes.  In fact, I would prefer to be able to introspect both "current
>> base profile" and "applied extension profiles" from the tool.
> I don't want to go down that road. The next step would be to keep  
> track of the applied profiles a snapshot is based on. Things become  
> more and more complicated and we still can't rely on that  
> information: Sites created with older CMF versions don't have that  
> information and manual customizations can make it quite useless.

Florent Guillaume, Nuxeo (Paris, France)   Director of R&D
+33 1 40 33 71 59   http://nuxeo.com   fg at nuxeo.com

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