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add modify in place setters for relations
#3867
While playing around with Arel I was surprised to find that
there were no setters to modify a relation. In other words, "bang"
methods (!) to update a relation using multiple calls. I think it
would be nice if the following were possible:
users = Table[:users]
users.where!(users[:id].eq(1))
This would make it possible to use conditionals when generating
a query.
I realize I can achieve a similar effect today just by storing
the results of a where call into a new variable, but I think the
bang methods are more elegant.
Thanks for your consideration.
Reported by Steve Erickson ·
February 5th, 2010 @ 09:10 PM
Most of the core team believes that it's great to have
immutability and is the recommended way. So I don't see ! methods
making it to the core. However, it should be simple to write a
plugin for it.
