Don't instantiate AR objects in Event.in_projects

Signed-off-by: Rémy Coutable <remy@rymai.me>

app/models/event.rb

@@ -36,7 +36,7 @@ class Event < ActiveRecord::Base
   scope :code_push, -> { where(action: PUSHED) }
 
   scope :in_projects, ->(projects) do
-    where(project_id: projects.map(&:id)).recent
+    where(project_id: projects).recent
   end
 
   scope :with_associations, -> { includes(project: :namespace) }

changelogs/unreleased/27395-reduce-group-activity-sql-queries.yml

+---
+title: Don't instantiate AR objects in Event.in_projects
+merge_request:
+author: