Methods
A
B
Class Public methods
after(model)

Source: show | on GitHub 

# File activesupport/test/callbacks_test.rb, line 53
def self.after(model)
  model.history << [:after_save, :class]
end
before(model)

Source: show | on GitHub 

# File activesupport/test/callbacks_test.rb, line 49
def self.before(model)
  model.history << [:before_save, :class]
end