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Here I want to verify that the attribute has changed in my model
model columns
Customer
ID
First
Last
curr_gender
Model
before_update :gender_changed
protected
def gender_changed
self.curr_gender.changed?
#do code
end
But i guess the following error
NoMethodError in CustomersController#update
undefined method `changed?' for "2":String
Thank you!
i think it’s
curr_gender_changed?