Sort for search results

Gemfile

@@ -73,7 +73,7 @@ gem "juggernaut"
 # Diff 内容并输出 HTML 格式
 gem "htmldiff", :git => "git://github.com/huacnlee/htmldiff.git"
 
-gem "redis-search", "0.4"
+gem "redis-search", "0.5"
 
 group :development do
 	gem 'rails-dev-boost-beta','0.1.2', :require => 'rails_development_boost'

Gemfile.lock

@@ -172,7 +172,7 @@ GEM
     redis (2.1.1)
     redis-namespace (1.0.3)
       redis (< 3.0.0)
-    redis-search (0.4)
+    redis-search (0.5)
       redis (>= 2.1.1)
       rmmseg-cpp-huacnlee (~> 0.2.8)
     resque (1.15.0)
@@ -243,7 +243,7 @@ DEPENDENCIES
   rails (= 3.0.5)
   rails-dev-boost-beta (= 0.1.2)
   redis (= 2.1.1)
-  redis-search (= 0.4)
+  redis-search (= 0.5)
   resque (= 1.15.0)
   resque_mailer (= 1.0.1)
   rmmseg-cpp-huacnlee (= 0.2.8)

app/models/ask.rb

@@ -60,7 +60,9 @@ class Ask
   # 问我的问题
   scope :asked_to, lambda { |to_user_id| where(:to_user_id => to_user_id) }
 
-  redis_search_index(:title_field => :title,:ext_fields => [:topics])
+  redis_search_index(:title_field => :title,
+                     :score_field => :score,
+                     :ext_fields => [:topics])
 
   before_save :fill_default_values
   after_create :create_log, :inc_counter_cache, :send_mails
@@ -70,6 +72,10 @@ class Ask
   def view!
     self.inc(:views_count, 1)
   end
+
+  def score
+    self.comments_count + (self.answers_count * 3) + (self.follower_ids.count * 2)
+  end
 
   def send_mails
     # 向某人提问

app/models/topic.rb

@@ -43,7 +43,8 @@ def cover_small_changed?
 
   redis_search_index(:title_field => :name,
 										 :prefix_index_enable => true,
-                     :ext_fields => [:followers_count,:cover_small])
+										 :score_field => :followers_count,
+                     :ext_fields => [:followers_count,:asks_count,:cover_small])
 
   # 敏感词验证
   before_validation :check_spam_words

app/models/user.rb

@@ -90,6 +90,7 @@ def score_changed?
 
   redis_search_index(:title_field => :name, 
 										 :prefix_index_enable => true,
+										 :score_field => :score,
                      :ext_fields => [:id, :slug,:avatar_small,:tagline, :score])
 
   # 敏感词验证