Flowdock

Good notes posted by wiseleyb

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February 10, 2011 - (<= v2.3.8)
3 thanks

Undocumented callbacks

Not sure why this isn’t documented… there are callbacks for before/after_add and before/after_remove. Example

has_many :things, :after_add => :set_things, :after_remove => :remove_things

def set_things(thing)
  ...
end
def remove_things(thing)
  ...
end