ActiveRecord Callbacks correction

bill.rb

class Bill < ActiveRecord::Base

    attr_accessible :name

    before_validation  :bvm
    after_validation   :avm 

    before_save :bsm
    around_save :arsm
    after_save :asm

    before_create :bcm
    around_create :arcm
    after_create :acm



    def bvm
        p '...........before validation call back'
        return true
    end 

    def avm
        p '...........after validation call back'
        return true
    end 

    def bsm
        p '...........before save call back'
        return true
    end 

    def arsm
        p '...........before yield - around save call back'
        yield
        p '...........after yield - around save call back'
        return true
    end 

    def bcm
        p '...........before create call back'
        return true
    end 

    def arcm
        p '...........before yield - around create call back'
        yield
        p '...........after yield - around create call back'
        return true
    end 

    def acm
        p '...........after create call back'
        return true
    end 

    def asm
        p '...........after save call back'
        return true
    end

end