[Tickets #12175] Re: ActiveSync misses changes from history database

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Ticket URL: http://bugs.horde.org/ticket/12175
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  Ticket             | 12175
  Updated By         | Michael Rubinsky <mrubinsk at horde.org>
  Summary            | ActiveSync misses changes from history database
  Queue              | Synchronization
  Version            | Git master
  Type               | Bug
  State              | Assigned
  Priority           | 1. Low
  Milestone          |
  Patch              |
  Owners             | Michael Rubinsky
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Michael Rubinsky <mrubinsk at horde.org> (2013-04-12 13:16) wrote:

> First draft of needed changes:
> -----------------------------------
> - Add sequence (=monotonic counter) support to Horde_DB.

Horde_Db already supports sequences, though I'd have to double check  
if they can be used on rows outside of the primary key.

> - Adapt ActiveSync code
>     - Store last seen sequence number for each device
>     - Use new API::getChanges($last_seen_seq, null, true) API
>       to collect the changes on the server

This is a BC break. This would mean the new version of  
Horde_ActiveSync would require a updated version of the groupware  
apps. We can make the applications require newer versions of  
libraries, but we can't do the opposite.