Merge pull request #186 from coderdojo-japan/fix-np1

Fix N+1

Author: yasulab

lib/statistics/aggregation.rb

@@ -2,9 +2,9 @@ module Statistics
   class Aggregation
     class << self
       def run(date:)
-        cnps_dojos = Dojo.joins(:dojo_event_services).where(dojo_event_services: { name: :connpass }).to_a
-        drkp_dojos = Dojo.joins(:dojo_event_services).where(dojo_event_services: { name: :doorkeeper }).to_a
-        fsbk_dojos = Dojo.joins(:dojo_event_services).where(dojo_event_services: { name: :facebook }).to_a
+        cnps_dojos = Dojo.includes(:dojo_event_services).where(dojo_event_services: { name: :connpass }).to_a
+        drkp_dojos = Dojo.includes(:dojo_event_services).where(dojo_event_services: { name: :doorkeeper }).to_a
+        fsbk_dojos = Dojo.includes(:dojo_event_services).where(dojo_event_services: { name: :facebook }).to_a
 
         Connpass.run(cnps_dojos, date)
         Doorkeeper.run(drkp_dojos, date)