[Zope] Get a reference to the latest transaction

[Jonathan]

----- Original Message ----- 
From: "Peter Bengtsson" <peter at fry-it.com>
To: "Jonathan" <dev101 at magma.ca>
Cc: "Zope Generic List" <zope at zope.org>
Sent: Tuesday, December 12, 2006 10:11 AM
Subject: Re: [Zope] Get a reference to the latest transaction


> that doesn't get a particular transaction, it gets all the latest
> ones. If I use that approach, how do I know that I get my particular
> transaction and not some other concurrent one?
>

If you want a specific user to be able to undo a specific transaction, then 
you may be able do this by getting a transaction id (does transaction_commit 
return a transaction id?) and then stuffing the transaction id into a 
SESSION variable.

Jonathan


> On 12/12/06, Jonathan <dev101 at magma.ca> wrote:
>>
>> ----- Original Message -----
>> From: "Peter Bengtsson" <peter at fry-it.com>
>> To: "Zope Generic List" <zope at zope.org>
>> Sent: Tuesday, December 12, 2006 9:51 AM
>> Subject: [Zope] Get a reference to the latest transaction
>>
>>
>> > Is it possible? If so, how do I get a reference to the last/current
>> > transaction that just happened within a method?
>> > Pseudo code:
>> >
>> > class MyFolder(Folder):
>> >    def manage_afterAdd(self):
>> >           self.image_count = 0
>> >    def addImage(self, imgdata, REQUEST):
>> >           self.manage_addImage('someid', file=imgdata)
>> >           self.image_count = self.image_count + 1
>> >           url = self.absolute_url() + '?transactionid=%s' %
>> > get_transaction().getId()
>> >           REQUEST.RESPONSE.redirect(url)
>> >
>> > If I had that, I could then do the following in my template:
>> >
>> > <div tal:condition="request/transactionid|nothing">
>> > Image uploaded.
>> > <a tal:attributes="href
>> > string:undoTransaction?transactionid=${request/transactionid}"
>> > >Undo</a>
>> > </div>
>> >
>> > Is it possible?
>>
>> You could have a look at manage_UndoForm and see how it gets the 
>> transaction
>> information.
>>
>>
>> Jonathan
>>
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>
>
> -- 
> Peter Bengtsson,
> work www.fry-it.com
> home www.peterbe.com
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>