FEATURE: Gives Back badge

app/models/badge.rb

@@ -27,6 +27,7 @@ class Badge < ActiveRecord::Base
   HotLink = 29
   FamousLink = 30
   Admired = 31
+  GivesBack = 32
 
   # other consts
   AutobiographerMinBioLength = 10
@@ -207,6 +208,16 @@ SQL
     HAVING count(*)::float / us.post_count > 0.75
 SQL
 
+    GivesBack = <<-SQL
+    SELECT us.user_id, current_timestamp AS granted_at
+    FROM user_stats AS us
+    INNER JOIN posts AS p ON us.user_id = p.user_id
+    WHERE p.like_count > 0
+      AND (:backfill OR us.user_id IN (:user_ids))
+    GROUP BY us.user_id
+    HAVING us.likes_given::float / count(*) > 5.0
+SQL
+
     def self.invite_badge(count,trust_level)
 "
     SELECT u.id user_id, current_timestamp granted_at

config/locales/client.en.yml

@@ -2967,6 +2967,9 @@ en:
         admired:
           name: Admired
           description: Has a high ratio of liked posts
+        gives_back:
+          name: Gives Back
+          description: Has a high ratio of likes given to likes received
 
     google_search: |
       <h3>Search with Google</h3>

db/fixtures/006_badges.rb

@@ -300,7 +300,19 @@ Badge.seed do |b|
   b.query = Badge::Queries::Admired
   b.default_badge_grouping_id = BadgeGrouping::Community
   b.trigger = Badge::Trigger::None
-  b.auto_revoke = true
+  b.auto_revoke = false
+  b.system = true
+end
+
+Badge.seed do |b|
+  b.id = Badge::GivesBack
+  b.default_name = "Gives Back"
+  b.default_icon = "fa-heart"
+  b.badge_type_id = BadgeType::Silver
+  b.query = Badge::Queries::GivesBack
+  b.default_badge_grouping_id = BadgeGrouping::Community
+  b.trigger = Badge::Trigger::None
+  b.auto_revoke = false
   b.system = true
 end