check whether a relationship is empty, efficiently
check whether a relationship is empty, efficiently
- Subject: check whether a relationship is empty, efficiently
- From: OC <email@hidden>
- Date: Thu, 04 Feb 2016 02:34:30 +0100
Hello there,
I'd bet this must be a WebObjects 101, but I can't see the best answer: is there an efficient way of checking whether an eo.someRelationship is empty?
So far I simply check eo.someRelationship.count==0, but that might fire a fault, which is not exactly efficient if the only need is to know whether the relationship is empty or not.
Of course I could rig myself something like “if already fetched in, simply check array count; if still fault, fetch max one object and see whether there's any...”, but this looks like a ubiquitous task enough it simply _must_ be done already (and in a far better way than I would do it myself)?
Thanks for any advice,
OC
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