[Zope] Catalog aware

[Garito]

Tino Wildenhain escribió:
> Garito wrote:
>   
>> Tino Wildenhain escribió:
>>     
>>> Garito wrote:
>>>       
>>>> Andreas Jung escribió:
>>>>         
>>>>> --On 19. Juli 2006 09:34:58 +0200 Garito <garito at sistes.net> wrote:
>>>>>
>>>>>           
>>>>>> Andreas Jung escribió:
>>>>>>             
>>>>>>> --On 18. Juli 2006 15:14:54 +0200 Garito <garito at sistes.net> wrote:
>>>>>>>
>>>>>>>               
>>>>>>>> Hi all!
>>>>>>>>
>>>>>>>> Is possible to create an object (for example a Page Template) and
>>>>>>>> make it
>>>>>>>> catalog aware?
>>>>>>>>                 
>>>>>>> Look at the CatalogAware mixin class.
>>>>>>>               
>>>>>> But with this class I could create a new class of PT Catalog aware,
>>>>>> isn't
>>>>>> it?
>>>>>> I would like to convert a normal PT is this possible?
>>>>>>             
>>>>> It makes little sense to index the contents of PTs. PTs are used to
>>>>> present a view on a particular instance of your class but not for
>>>>> providing content
>>>>> itself.
>>>>>
>>>>>           
>>>>>>>> I wonder why the objects aren't catalogable by default (I need
>>>>>>>> all my
>>>>>>>> object catalogables)
>>>>>>>>
>>>>>>>>                 
>>>>>>> Because Zope is not CMF and Zope is not Plone. Because you need this
>>>>>>> feature it does not mean that everyone needs this feature by default.
>>>>>>>
>>>>>>> -aj
>>>>>>>               
>>>>>> Sure but Is the cost so big?
>>>>>>             
>>>>> This is not the question. If you need catalog awareness, either
>>>>> implement it as stated above or use one of the frameworks....little
>>>>> need to discuss the pros and cons...by default Zope default
>>>>> content-types  don't depend on the catalog. CMF and Plone depend on
>>>>> the catalog for various reasons. If you have the requirement to use
>>>>> a catalog you have the mentioned options.
>>>>>
>>>>> -aj
>>>>>
>>>>>           
>>>> Yes but what about something like
>>>>
>>>> if self.default_catalog != '': self.reindex_object()
>>>>
>>>> ?
>>>>
>>>> I think it's a question of preferences
>>>>
>>>> Then can I "inject" Catalog awarness to an object?
>>>>         
>>> Yes you can. Its possible with so called monkeypatching.
>>> However if you can do that, you better just write
>>> a product w/ subclasses of the standard zope objects and
>>> your CatalogAwareness. Its easy and clean and you dont
>>> interfere with further development of zope.
>>>
>>> Regards
>>> Tino
>>>       
>> Sure, but I can't create a new product for every product I'll use only
>> to do it catalog aware, isn't it?
>>     
>
> Yes you can. Why not? I mean you are using them - so you can use
> your products instead as well.
>   
Yes but what if tomorrow you create a product? need work to times: you 
first, me later
In my opinion (is only an opinion) these is not the best situation in a 
future

Sorry but is not so acceptable for me
>
>   
>> Can you say more about monkeypatching?
>>     
>
> If you cant figure out (google, imagination)
> you better dont do it :-)
>
> The code to monkey-patch is roughly the same
> as subclassing. So you better just subclass
> and use your products.
>
> Hint: you can use loops in python too .-)
>
> Kind regards
> Tino
>   
A! sure, I'll searched at google!

-- 
Mis Cosas
http://blogs.sistes.net/Garito