[Zope] persistance

[Paul Winkler]

On Tue, Nov 13, 2001 at 07:00:36PM +0100, Michel Vayssade wrote:
> 
> Hi,
> 
> I have an instance of an object of a product, which inherits
> Persistent.
> 
> I made some : self.listdata[item] = newdata

Which of the above inherit from Persistent?  If it's just the "self"
object, that's not enough to tell ZODB that self.listdata has changed.

You can either

A) use a Persistent subclass for listdata, instead of a normal list.
   Then it should be automatic.

Or

B) Explicitly tell Zope when you change things like this. Example:

   def some_method(self, data, REQUEST=None):
       self.listdata = data
       self._p_changed = 1  # this updates the object in the ZODB  

-- 

paul winkler
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