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expand on set_callback method to explain that in

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some cases an implicit :before is assumed
This commit is contained in:
Neeraj Singh 2010-12-13 22:13:33 -05:00
parent 68ebd332d0
commit 3c1a0a8b62
1 changed files with 4 additions and 0 deletions
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4
activesupport/lib/active_support/callbacks.rb
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@ -447,6 +447,10 @@ module ActiveSupport
# set_callback :save, :after, :after_meth, :if => :condition
# set_callback :save, :around, lambda { |r| stuff; yield; stuff }
#
# If the second argument is not :before, :after or :around then an implicit :before is assumed.
# It means the first example mentioned above can also be written as:
# set_callback :save, :before_meth
#
# Use skip_callback to skip any defined one.
#
# When creating or skipping callbacks, you can specify conditions that