[Dev] Simplifying biref definition and kind extensions

[Morgen Sagen]

I'm glad I brought this up then, I didn't think this was supported.

~morgen

On Sep 8, 2005, at 1:58 PM, Andi Vajda wrote:

>
>
>> I have a question though -- since this still adds an attribute to  
>> the CalendarEventMixin under the hood, do we still have the  
>> problem that a Kind can't be modified once instances of it have  
>> been created?  You couldn't create a bunch of CalendarEvents in  
>> your repository and then later add in 'foreign' (or whatever we're  
>> calling them) attributes to that Kind, right?  I realize this is  
>> nothing new, I just wanted to verify my understanding.
>>
>
> The core schema sure supports it. You can add an attribute to a  
> Kind at any time, even when items of that kind exist already. What  
> is not done at the moment is setting a possible initial value for  
> that new attribute on these existing items.
>
> Andi..
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