[Cosmo-dev] recurring events in multiple collections

[Aparna Kadakia]

I think the fix for the 26 modifications should be included as part  
of  Cosmo 0.7 migration. It is data loss/inconsistency in some sense.  
Putting it off after preview is just asking for trouble. 26  
modifications seems a relatively small number to fix right now.  
Waiting any longer may get us in the 100s of range which we would  
rather not.
If it is part of 0.7 migration, we will need to add it to the  
migration test plan to make sure we validate them as part of testing.

So, +1
Aparna


On Sep 17, 2007, at 2:08 PM, Randy Letness wrote:

> This bug:
>
> http://bugzilla.osafoundation.org/show_bug.cgi?id=10209
>
> describes a problem where event modifications can exist in  
> different collections than the parent item.  I've checked in a fix  
> for this that keeps all new data in sync, but the question now is  
> what do we do with existing data on hub?
> Currently there are about 26 modifications that are "out-of-sync"  
> with the parent items.  What this means is that one collection will  
> show the modification and another won't.  What problems does this  
> cause?  Users may see unexpected things when using cosmo ui or  
> caldav as these modifications may show up in some collections and  
> not others.  For example, a morse code subscribe may return one  
> modification and an atom or caldav query may return the same  
> modification, plus additional modifications that exist in other  
> collections but not in the current collection.
>
> So should the data migration include logic to fix this?  It would  
> involve going through all the event modifications and making sure  
> they exist in all collections that the parent is in.  Its not  
> trivial, but not too complicated either.  Should this be included  
> in the 0.7 migration?  Do we live with these out-of-sync  
> modifications?  Do we not worry about it for preview and if it  
> becomes a problem fix it later?
>
> -Randy
>
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