Re: Storing EOQualifiers in an EO
Re: Storing EOQualifiers in an EO
- Subject: Re: Storing EOQualifiers in an EO
- From: Ramsey Gurley <email@hidden>
- Date: Fri, 19 Oct 2012 10:48:22 -0700
Hey Dave,
Check out the ERDSavedQueriesComponent in ERD2W. I'm not fond of how it ties them to a specific user's prefs, but I've considered extending the idea to make it more general on more than one occasion.
Ramsey
On Oct 19, 2012, at 9:49 AM, David Avendasora wrote:
> Hey all,
>
> I've got a situation where I'm allowing the user to create some basic business rules within the application at runtime. I'm planning on creating EOQualifiers based on their input that will then be used to determine how to categorize EOs in one of our Entities. Kinda like:
>
> boolean studentMeetsRequirements = aSchool().enrollmentRequirement().evaluateWithObject(aStudent());
> if(studentMeetsRequirements) {
> aStudent().setStatus(StudentStatus.ACCEPTED);
> }
>
> In this example the user would be able to create an arbitrarily complex set of rules that I will then turn into the enrollmentRequirement() EOQualifier, and each School can have it's own set of rules which will be stored in the database just like any other attribute of a School.
>
> What I want to know is if anyone has done something similar and has a good design pattern for it. I've got a decent idea of how to do it, but before I go creating it I figured I'd ask if anyone has any experience they care to share. I'm specifically looking for ideas on how to store EOQualifiers in the database.
>
> Thanks!
>
> Dave
>
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> —————————————————————————————
> David Avendasora
> Senior Software Abuser
> Kaiten, Inc.
>
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>
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