Add one off job to grant the emoji badge retroactively

app/jobs/base.rb

@@ -262,5 +262,6 @@ module Jobs
   end
 end
 
+Dir["#{Rails.root}/app/jobs/onceoff/*.rb"].each {|file| require_dependency file }
 Dir["#{Rails.root}/app/jobs/regular/*.rb"].each {|file| require_dependency file }
 Dir["#{Rails.root}/app/jobs/scheduled/*.rb"].each {|file| require_dependency file }

app/jobs/onceoff/grant_emoji.rb

@@ -0,0 +1,27 @@
+module Jobs
+
+  class GrantEmoji < Jobs::Base
+    sidekiq_options retry: false
+
+    def execute(args)
+
+      to_award = {}
+
+      Post.secured(Guardian.new).visible.public_posts.find_in_batches(batch_size: 5000) do |group|
+        group.each do |p|
+          doc = Nokogiri::HTML::fragment(p.cooked)
+          if (doc.css("img.emoji") - doc.css(".quote img")).size > 0
+            to_award[p.user_id] ||= { post_id: p.id, created_at: p.created_at }
+          end
+        end
+      end
+
+      badge = Badge.find(Badge::FirstEmoji)
+      to_award.each do |user_id, opts|
+        BadgeGranter.grant(badge, User.find(user_id), opts)
+      end
+    end
+
+  end
+
+end

app/services/badge_granter.rb

@@ -32,7 +32,7 @@ class BadgeGranter
         user_badge = UserBadge.create!(badge: @badge,
                                        user: @user,
                                        granted_by: @granted_by,
-                                       granted_at: Time.now,
+                                       granted_at: @opts[:created_at] || Time.now,
                                        post_id: @post_id,
                                        seq: seq)
 

db/migrate/20160407174541_schedule_emoji_grant.rb

@@ -0,0 +1,5 @@
+class ScheduleEmojiGrant < ActiveRecord::Migration
+  def up
+    Jobs.enqueue(:grant_emoji)
+  end
+end