Re: ERD2W and EOGeneralAdaptorException
Re: ERD2W and EOGeneralAdaptorException
- Subject: Re: ERD2W and EOGeneralAdaptorException
- From: Tim Worman <email@hidden>
- Date: Mon, 03 Jun 2013 14:50:48 -0700
Ramsey:
Thanks much. I'll check out freshness explorer.
What do you do for D2W typically? Clobber all fetches with a rule and have it always refreshRefetchedObjects for everything or do you typically only put a rule in for certain views and relationships?
Tim
On Jun 3, 2013, at 1:19 PM, Ramsey Gurley <email@hidden> wrote:
>
> On Jun 3, 2013, at 12:06 PM, Tim Worman wrote:
>
>> an optimistic locking problem I believe. If I kick a new instance everything is fine.
>
> That sounds like you need to refreshRefetchedObjects on your fetch spec. If you've previously fetched a row, and then another instance changes that same row, then you fetch the row again in the first instance, the snapshot is not refreshed unless you tell it do so explicitly.
>
> With the default false value for refreshRefetchedObjects, you can actually fetch with a qualifier q, and then filter your fetched array with q in memory and get a smaller array of results.
>
> I suggest playing around with the freshness explorer app for a few minutes. I found the results to be eye opening.
>
> https://github.com/nullterminated/ponder/blob/master/ERR2d2w/Support/FreshnessExplorer.zip
>
> Ramsey
>
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