Re: Qualifier through relationship
Re: Qualifier through relationship
- Subject: Re: Qualifier through relationship
- From: Lachlan Deck <email@hidden>
- Date: Fri, 4 Dec 2009 11:23:45 +1100
On 03/12/2009, at 10:25 PM, Riccardo De Menna wrote:
> Ok ok... I suck at writing examples as I incorrectly explained myself.
>
> The relationship is a toMany so... rewording my request:
>
> I want all the records from the 'Book' entity that have an 'authors' relationship that CONTAINS a specific record coming form the 'Author' entity.
new EOKeyValueQualifier(Book.AUTHORS, EOQualifier.QualifierOperatorContains, author)
Hint: read javadoc :-)
Note: some suggest this doesn't always work with some databases.
> On 03/dic/2009, at 12.10, Stefan Klein wrote:
>
>> Hi,
>>
>> new EOKeyValueQualifier(_Book.AUTHOR, EOQualifier.QualifierOperatorEqual, author)
>>
>> EOF is doing the rest
>>
>> Stefan
>>
>> Riccardo De Menna schrieb:
>>> Hi,
>>>
>>> How do I build a fetch specification that qualifies objects based on the content of relationship and not an attribute?
>>>
>>> In other words let's say I want all the records from the 'Book' entity that have an 'author' relationship to a specific record in the 'Author' entity.
>>>
>>> Riccardo De Menna
>>>
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>
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with regards,
--
Lachlan Deck
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