Ruby on Rails
Monday, August 18, 2014
On Monday, August 18, 2014 2:57:05 AM UTC+1, Phil wrote:
Is there a way to turn this sort of caching off globally? (Other caching is fine, I don't want to turn all caching off.)
BTW- It is a bit mind blowing that this is turned on by default. Possible data corruption shouldn't ever be preferred by default over (possible) speed gains. I'd still categorize this as a serious bug, at least as a configuration default.
Not that I know of. As of rails 4 (or is it 3.2?) the generated association accessors are defined in a module (rather than directly on the class so it's easy enough to override them so you could do
class TestParent
has_many :test_children
def test_childen(force_reload=true)
super(force_reload)
end
end
To change it for all associations without having to do this on a per association basis would probably require some monkey patching inside the activerecord code - sounds brittle.
As tamouse says if you use build/create on the association then you won't see this behaviour, although there can still be differences between the array thus constructed in memory and the array you'd get if you had selected from the database (for example if you have an order clause on the association, custom select etc.)
Rails has been like this at least since the 1.0 days - I can't say I've ever run into particular issues from it.
Fred
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