Ruby on Rails: before_save fields to lowercase
downcase returns a copy of the string, doesn't modify the string itself. Use downcase! instead:
def downcase_fields self.name.downcase!endSee documentation for more details.
You're not setting name to downcase by running self.name.downcase, because #downcase does not modify the string, it returns it. You should use the bang downcase method
self.name.downcase!However, there's another way I like to do it in the model:
before_save { name.downcase! }
String#downcase does not mutate the string, it simply returns a modified copy of that string. As others said, you could use the downcase! method.
def downcase_fields name.downcase!endHowever, if you wanted to stick with the downcase method, then you could do the following:
def downcase_fields self.name = name.downcaseendThis reassigns the name instance variable to the result of calling downcase on the original value of name.