如何在更新更新對象時更改狀態時不包含時間戳？

Question

我正在使用工作流作爲狀態機。我想在每次更新之後移動狀態到awaiting_review但我也有current_sign_in_at屬性用戶登錄後他的狀態改爲awaiting_review如何避免這種情況？

before_save :needs_review, on: :update 

# before_save 
def needs_review 
    self.state = 'awaiting_review' unless state_changed? 
end 

workflow do 
    state :awaiting_review do 
    event :accept, :transitions_to => :accepted 
    event :reject, :transitions_to => :rejected 
    end 
    state :accepted do 
    event :reject, :transitions_to => :rejected 
    end 
    state :rejected 
end 
# sign_in_count   :integer   default(0) 
# current_sign_in_at  :datetime 
# last_sign_in_at  :datetime 
# current_sign_in_ip  :string(255) 
# last_sign_in_ip  :string(255) 

Answer 1

def needs_review 
    if (%w[sign_in_count current_sign_in_at last_sign_in_at ...] & changes).empty? 
    self.state = 'awaiting_review' unless state_changed? 
    end 
end