for_commit for rails controller

after_commit

rescue_from AccountError, :with => :render_internal_error

after_commit :render_created, :on => :create

def create
  Account.transaction do
    modify_underlying_system
    @account.save!
  end
end

protected
def render_created
  render :status => 201, :json => {...}
end

def render_internal_error
  render :status => 500, :json => {...}
end

after_commit

def create
  begin
    Account.transaction do
      modify_underlying_system
      @acount.save!
    end
    render :status => 201, :json => {...}
  rescue ActiveRecord::RecordInvalid
    render :status => 500, :json => {...}
  end
end