Simple way to always make a field lowercase in db

Question

Currently I'm doing the following in the model:

before_save :to_lower
before_create :to_lower

def to_lower
  self.name = self.name.downcase
end

Seems pretty repetitive to me.

Answer 1

You don't need the before_create if you already have before_save.

before_save { |user| user.name = user.name.downcase }

Answer 2

I generally handle such cases by:

def name= name
  super(name.try(:downcase))
end