[Zope] acquisition

[Peter Bengtsson]

Dennis Schulz wrote:
> I found no example how to define it in the class generally for all 
> instances
> 
> i would like to access the supplier container under a different name 
> inside one instance of Purchase Requisition.
> 
> class PurchaseRequisition( SimpleItem, Implicit ):
> 
>         suppliers = property ( lambda self: str( 
> self.context.aq_inner.aq_parent.supplier) )
> 
Keep it simple like Andreas suggested::

from Acquisition import aq_inner, aq_parent
class PurchaseRequisition( SimpleItem, Implicit ):

     def suppliers(self):
         parent = aq_parent(aq_inner(self))
         return parent.supplier

     # does exactly the same thing thanks to automatic
     # acquisition:
     def suppliers(self):
         return self.supplier





> Andreas Jung escribió:
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>>
>> - --On 13. Dezember 2006 19:12:13 +0100 Dennis Schulz 
>> <d.schulz81 at gmx.net> wrote:
>>
>>  
>>> Hi
>>>
>>> I want to acquire an persistent zope object (supplier) that is inside my
>>> productfolder
>>>
>>> myproductfolder/supplier
>>>
>>> How to get a reference to this object? Also, Is there a method to get 
>>> the
>>> product root?
>>>
>>>     
>>
>> context.myproductfolder.supplier?
>>
>> That's basic acquisition and should be documented in the Zope Book:
>>
>> <http://www.plope.com/Books/2_7Edition/Acquisition.stx>
>>
>> - -aj
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> 
> 
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-- 
Peter Bengtsson,
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