FEATURE: badges for inviting users

First invite = Promoter
3 TL2 = Campaigner
10 TL3 = Champion

app/models/badge.rb

@@ -21,6 +21,10 @@ class Badge < ActiveRecord::Base
   GreatShare = 23
   OneYearAnniversary = 24
 
+  Promoter = 25
+  Campaigner = 26
+  Champion = 27
+
   # other consts
   AutobiographerMinBioLength = 10
 
@@ -189,6 +193,22 @@ SQL
      HAVING COUNT(p.id) > 0
 SQL
 
+    def self.invite_badge(count,trust_level)
+"
+    SELECT u.id user_id, current_timestamp granted_at
+    FROM users u
+    WHERE u.id IN (
+      SELECT invited_by_id
+      FROM invites i
+      JOIN users u2 ON u2.id = i.user_id
+      WHERE i.deleted_at IS NULL AND u2.active AND u2.trust_level >= #{trust_level.to_i} AND not u2.blocked
+      GROUP BY invited_by_id
+      HAVING COUNT(*) > #{count.to_i}
+    ) AND u.active AND NOT u.blocked AND u.id > 0 AND
+      (:backfill OR u.id IN (:user_ids) )
+"
+    end
+
     def self.like_badge(count, is_topic)
       # we can do better with dates, but its hard work
 "

config/locales/client.en.yml

@@ -2521,6 +2521,15 @@ en:
         first_flag:
           name: First Flag
           description: Flagged a post
+        promoter:
+          name: Promoter
+          description: Invited a user
+        campaigner:
+          name: Campaigner
+          description: Invited 3 members
+        champion:
+          name: Champion
+          description: Invited 10 members
         first_share:
           name: First Share
           description: Shared a post

db/fixtures/006_badges.rb

@@ -140,6 +140,29 @@ Badge.seed do |b|
   b.system = true
 end
 
+
+[
+  [Badge::Promoter,"Promoter",BadgeType::Bronze,1,0],
+  [Badge::Campaigner,"Campaigner",BadgeType::Silver,3,2],
+  [Badge::Champion,"Champion",BadgeType::Gold,10,2],
+].each do |id, name, type, count, trust_level|
+  Badge.seed do |b|
+    b.id = id
+    b.default_name = name
+    b.default_icon = "fa-user-plus"
+    b.badge_type_id = type
+    b.multiple_grant = false
+    b.target_posts = false
+    b.show_posts = false
+    b.query = Badge::Queries.invite_badge(count,trust_level)
+    b.default_badge_grouping_id = BadgeGrouping::Community
+    # daily is good enough
+    b.trigger = Badge::Trigger::None
+    b.auto_revoke = true
+    b.system = true
+  end
+end
+
 Badge.seed do |b|
   b.id = Badge::FirstShare
   b.default_name = "First Share"