How do I validate that two values do not equal each other in a Rails model?

Question

I have a User model, which has an email and a password field. For security, these may not be equal to each other. How can I define this in my model?

Answer 1

By using custom validations we can do this operation

validate :validate_address

def validate_address
errors.add(:permenent_address, "can't be the same as present_address") if self.present_address== self.permenent_address end