Re: Qualifier help with ERXToManyQualifier (? or an alternative)
Re: Qualifier help with ERXToManyQualifier (? or an alternative)
- Subject: Re: Qualifier help with ERXToManyQualifier (? or an alternative)
- From: Chuck Hill <email@hidden>
- Date: Mon, 17 Jan 2011 12:45:15 -0800
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
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