lib/carte/server/models/card.rb in carte-server-0.0.9 vs lib/carte/server/models/card.rb in carte-server-0.0.10

@@ -4,14 +4,16 @@
       class Card
         include Mongoid::Document
         include Mongoid::Timestamps
         include Mongoid::Attributes::Dynamic
         include Mongoid::Document::Taggable
+        include Mongoid::Geospatial
       
         field :title, type: String
         field :new_title, type: String
         field :content, type: String
+        field :random_point, type: Point, spatial: true
 
         index({title: 1}, {unique: true, name: "title_index"})
       
         validates :title,
           presence: true,
@@ -36,12 +38,16 @@
           if self.new_title
             self.title = self.new_title
             self.new_title = nil
           end
         end
+
+        before_create do
+          self.random_point = [Random.rand, 0]
+        end
       
-        def self.sample(size=1)
-          self.in(id: (1..self.count).to_a.sample(size))
+        def self.random
+          self.near(random_point: [Random.rand, 0])
         end
       
         def lefts(size=1)
           ids = []
           count = self.class.all.count