Multiple Carets in TextMate 2.0; Default Scope
Don't get me wrong, I'm quickly learning to love VIM since that's all we use at Hashrocket, but TextMate will always be the first text editor that I loved. I haven't been following the Alpha that closely, but I did read about the new Multiple Caret features and I'm really excited about it, I think it looks pretty great.
Found out about
default_scope on Destroy All Software 21: Coupling and
Abstraction. When you do:
And you've got:
class User < ActiveRecord::Base default_scope where(active: true) end
all method will use that default and only return active users. Pretty neat.
Gregory warns though, that you can easily become coupled to this behavior in a bad way and advises that if you actually want to use this default, you might want to try using an alias instead:
class User < ActiveRecord::Base default_scope where(active: true) class << self alias_method :all_active_users, :all end end
And then you can use
User.all_active_users instead. What's nice about this
approach is that if you later want to change the default scope, you'll notice
all_active_users is using it and can make a better choice about your