Re: Order by primary key
Re: Order by primary key
- Subject: Re: Order by primary key
- From: David LeBer <email@hidden>
- Date: Thu, 12 Apr 2012 11:43:44 -0400
If you are using Wonder, ERXS is your friend:
NSArray<Address> allAddresses = Address.fetchPUPAddresses(ec, qualifier, ERXS.descs("id"));
D
--
David LeBer
Codeferous Software
On 2012-04-12, at 11:36 AM, Ken Anderson wrote:
> This worked perfectly...I know using "id" is not ideal, but it is rough fix until I can do some revision to the architecture.
>
> NSMutableArray<EOSortOrdering> ordering = new NSMutableArray<EOSortOrdering>();
> EOSortOrdering byPK = new EOSortOrdering("id", EOSortOrdering.CompareDescending);
> ordering.add(byPK);
>
> NSArray<Address> allAddresses = Address.fetchPUPAddresses(ec, qualifier, ordering);
>
> Ken Anderson
> email@hidden
>
>
>
> On Apr 12, 2012, at 8:21 AM, Chuck Hill wrote:
>
>> But I would not rely on that to get the latest object. That is inferring meaning in the PK. Add a timestamp and sort on that.
>>
>> Chuck
>>
>> On 2012-04-12, at 4:48 AM, Kieran Kelleher wrote:
>>
>>> In memory you can sort by "rawPrimaryKey"
>>>
>>> For a fetch spec, even if PK is not exposed as a class property, you can still use it in a sort ordering.
>>>
>>>
>>>
>>> On Apr 11, 2012, at 10:29 PM, Ken Anderson wrote:
>>>
>>>> Is there a way to sort a fetch result by primary key? I just need to access the latest object (order desc).
>>>>
>>>> Ken Anderson
>>>> email@hidden
>>>>
>>>>
>>>>
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>>
>> --
>> Chuck Hill Senior Consultant / VP Development
>>
>> Practical WebObjects - for developers who want to increase their overall knowledge of WebObjects or who are trying to solve specific problems.
>> http://www.global-village.net/gvc/practical_webobjects
>>
>>
>>
>>
>>
>>
>>
>>
>
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