Re: Re: Accidentally sharing item that was only emailed around...

If the 'same item' on the server has different UUIDs, is this going  
to affect edit/update scenarios on the desktop? Edit/Update allows  
users to essentially share an item via email. But it only works if  
the item being sent back and forth has the same UUID at both ends.

What happens when the 'same item' *is* actually added to a shared  
collection? Will you end up with 2 versions of that item in the  
collection? We'd have to something to make sure they 'rationalize' to  
become the same item.

Mimi

On Dec 18, 2007, at 4:02 PM, Brian Moseley wrote:

> On Dec 18, 2007 3:15 PM, Randy Letness <[email protected]>  
> wrote:
>
>> The relationship would be that they have the same uuid.  One thing  
>> the
>> client could do is to always assume the data in the most recently
>> updated item trumps other items.
>
> a uid is no longer a uuid if multiple items share it. every item
> should have a uuid if for no other reason than that we can use that to
> unambiguously locate it within a federated database.
>
> every item could have a "copy-of" attribute that acts as a foreign
> key, storing the uuid of the original item. this opens the door to
> protocol queries like "find all copies of the item with uuid {uuid}".
>
> also, this whole concept basically assumes that we want to move the
> web ui to a sync model as opposed to a live query model. it's not
> longer sufficient for the web ui to ask for a list of items in a
> collection. it has to ask for both the member items *and* all the
> items related to members that have changed since a certain time.
>
> we could probably optimize this a bit by having the server return the
> member items and descriptions of the changes to each member's copies.
> the web ui could then go through a change application process similar
> to the desktop's, including allowing the user to resolve conflicts.
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