[Zope3-dev] Re: trigger persistence

[Jim Fulton]

Jeremy Hylton wrote:
> I've seen code that says this:
> 
>         self._registry = self._registry #trigger persistence, if pertinent
> 
> Wouldn't it be clearer to say this directly?
> 
>         self._p_changed = 1
> 
> Then there would be no mystery and no need for a comment.

Well, yes, but, the former will work for non-persistent
objects without creating an extraneous attribute. I encouraged people
to do the former, but *now* tend to lean toward the later, especially
when you know you are persistent. The former is still handy in mix-ins that
*might or might not* be used with persistence.

Jim

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