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From Robert Samuel Newson <rnew...@apache.org>
Subject Re: CouchDB: Returning latest revision as update function result
Date Mon, 30 Dec 2013 22:24:24 GMT
It's worth remembering that the update hasn't yet happened at the point
that the update handler returns (it could even fail with a conflict!).

The return value is two parts, the first is the document you want
couchdb to attempt to update and the second is the response to return to
the user.

B.


On 30/12/2013 20:59, Stanley Iriele wrote:
> No sadly there isn't and that is by design.
> 
> In the city text of an update handler you only have the doc before it gets
> persisted to disk so you don't know the new revision till afterwards
> On Dec 30, 2013 3:36 PM, "Hank Knight" <hknight555@gmail.com> wrote:
> 
>> Thanks.  Accessing the headers is better than nothing but is there any
>> way to get the revision information returned like this?
>> return [doc, doc._rev]
>>
>> On Mon, Dec 30, 2013 at 4:17 PM, Stanley Iriele <siriele2x3@gmail.com>
>> wrote:
>>> Yes...the new ID and rev are returned as headers.
>>>
>>> X-Couch-Id is the  new ID
>>> X-Couch-Update-Newrev is the new revision
>>>
>>> Here's where its mentioned in the docs
>>>
>>>
>> http://docs.couchdb.org/en/latest/api/ddoc/render.html?highlight=update#put--db-_design-ddoc-_update-func-docid
>>> On Dec 30, 2013 3:11 PM, "Hank Knight" <hknight555@gmail.com> wrote:
>>>
>>>> I use this in my update function:
>>>> return [doc, doc._rev]
>>>>
>>>> When a document is updated using the update function, I want the
>>>> latest revision information to be returned, however that returns
>>>> revision information of the document BEFORE being updated by the
>>>> update function.  So it actually always returns a previous revision
>>>> and not the latest revision.
>>>>
>>>> Is it possible for the update function to return the latest revision
>>>> information or will I have to get this from a separate query after
>>>> updating the document with the update function?
>>>>
>>
> 

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