Scopes for conditions

It is common for your named and anonymous scopes to only specify the :conditions option. In RailsCast #112, Ryan Bates suggests adding a conditions named_scope:


This allows you to replace:

active_people = People.scoped(:conditions => {:active => true})

with:

active_people = People.conditions(:active => true)

A step further

This can be taken a step further by adding a class method, named_conditions, to ActiveRecord::Base:


Now you can replace:

class Post
  named_scope :recent, lambda { {:conditions => ['created_at > ?',  1.day.ago] } }
end

with:

class Post
  named_conditions :recent, lambda { ['created_at > ?',  1.day.ago] }
end

Not very exciting, but it's the little things that count. You can download the module at http://gist.github.com/111783.