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Re: Qualifier help with ERXToManyQualifier (? or an alternative)
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Re: Qualifier help with ERXToManyQualifier (? or an alternative)


  • Subject: Re: Qualifier help with ERXToManyQualifier (? or an alternative)
  • From: Mark Wardle <email@hidden>
  • Date: Mon, 17 Jan 2011 22:54:00 +0000

Thanks Chuck.

I'll go back to the drawing board with this I think.

Many thanks.

Mark

On 17 January 2011 20:45, Chuck Hill <email@hidden> wrote:
> Hi Mark,
>
>
> On Jan 16, 2011, at 1:18 PM, Mark Wardle wrote:
>
>> Hi there.
>>
>> I'm defining some export stuff within a property list and wish to
>> include an arbitrary qualifier during the export of arbitrary entities
>> (* see below)
>>
>> I usually generate qualifiers in code and so am not particularly
>> familiar with generating qualifiers from a qualifierFormat string and
>> some bindings.
>>
>> For instance, I wish to qualifier a fetch specification based on
>> user's membership of certain projects. Patients are also member of
>> particular projects.
>>
>> NSArray<Project> projects = currentUser().projects()   // defined
>> elsewhere as the list of projects that this user is a member of
>> EOQualifier qual = Patient.ENTITY_NAME, new
>> ERXToManyQualifier(Patient.PROJECTS.key(), projects, 1));
>>
>> How would I represent this as text... ?
>
> I don't think that you can.  The EOQualifier JavaDocs state "The operators you can use in constructing qualifiers are =, ==, !=, <, >, <=, >=, "like", and "caseInsensitiveLike"."
>
> I am not aware of any way to extend this.
>
> You may be able to create them in code and then use the Serializable interface to get a text version.  I have never tried that.
>
>
> Chuck
>
>
>> "projects containsAny %@"
>>
>> I note ERXToManyQualifier doesn't implement qualifierWithBindings().
>>
>> I was even considering looking at a selector although I can't find
>> much documentation on this...
>>
>> Many thanks,
>>
>> Mark
>>
>>
>> (*) this is an example property list for these exporters:
>>
>> (
>>        {
>>            entityName = "Patient";
>>            qualifier = "projects contains %@";
>>            keyPaths = (
>>                {   keyPath = "id"; },
>>                {   keyPath = "patientIdentifier"; },
>>                {   keyPath = "status"; },
>>                {   keyPath = "currentAge"; },
>>                {   keyPath = "sex"; },
>>                {   keyPath = "mother"; },
>>                {   keyPath = "father"; },
>>                {   keyPath = "dateDeath"; },
>>                {
>>                    keyPath = "currentAddress.postcode.localHealthBoard.name";
>>                    columnName = "localHealthBoard";
>>                }
>>       }
>> )
>> --
>> Dr. Mark Wardle
>> Specialist registrar, Neurology
>> Cardiff, UK
>> _______________________________________________
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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/products/practical_webobjects
>
>
>
>
>
>
>
>



--
Dr. Mark Wardle
Specialist registrar, Neurology
Cardiff, UK
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References: 
 >Qualifier help with ERXToManyQualifier (? or an alternative) (From: Mark Wardle <email@hidden>)
 >Re: Qualifier help with ERXToManyQualifier (? or an alternative) (From: Chuck Hill <email@hidden>)

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