Scope examples

posts_controller(1).rb

# /app/controllers/posts_controller.rb
def index
  @posts = Post.find(
              :all,
              :conditions => {:user_id => current_user.id}, :order => 'created_at desc',
              :limit => 10
            )
  @trending = Topic.find(
                :all,
                :conditions => ["started_trending > ?", 1.day.ago],
                :order => 'mentions desc',
                :limit => 7
              )
  # ...
end