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problem in helper [message #1075558]

Mon, 29 July 2013 16:27

Jeni Martin

Messages: 42
Registered: November 2012

Member

Hi,

I have a lazy rule and this lazy rule calls a helper. Although I pass the elements of input model to this helper, It checks for both elements of input and output and it stops with OUT! <unnamed>.
Before, that I use a helper in a rule not lazy rule, was fine. Is it because that I defined it in a lazy rule?

Thanks

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Re: problem in helper [message #1075562 is a reply to message #1075558]

Mon, 29 July 2013 16:35

Jeni Martin

Messages: 42
Registered: November 2012

Member

here is the helper:

helper context MM! Dependency
def: findCM (): Set (MM! Association) =
MM!Association.allInstances()->select (e|e-> debug ('CM').hasStereotype('PRO1::CM') and
and e.endType -> at (1) =self.client -> at(1)

);

How I can specify that allInstances () should be calculated only for input elements not output elements?

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Re: problem in helper [message #1075569 is a reply to message #1075562]

Mon, 29 July 2013 16:50

Sylvain EVEILLARD

Messages: 556
Registered: July 2009

Senior Member

I think there's a declinaison of allInstances that allows to specifiy precisely for which model you're asking all the instances.
This should be

allInstancesFrom('model name')

Btw you can remove the () in the helper name, that way it does cache for the helper and it behaves just like a property so it's only calculated once for each element and not re-computed afterwards.

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