given parent.list is a has_many of Child, I’ve found that if I do this:
child = Child.new(...) parent.list << child
rails will select * all of parent.list before doing the insert of the
new child (if parent.list isn’t already loaded). This is -bad- because
my parent.list is huge.
So instead, I do this:
child = Child.new(...) child.parent = parent child.save!
This ensures a single insert and also throws an exception if any DB
constraints are violated, thus ensuring any encompassing transactions
and/or top level logging is handled.
is this generally the right thing to do with rails? I’m a noob coming
from enterprise development in other languages.
Or is there some other magic way to add to parent.list with the above