Add async queries

app/controllers/overview_controller.rb

@@ -23,10 +23,10 @@ class OverviewController < SqmApplicationController
   end
 
   def measures
-    @measures ||= Measure.all.includes(%i[scales admin_data_items category])
+    @measures ||= Measure.all.includes(%i[scales admin_data_items category]).load_async
   end
 
   def subcategories
-    @subcategories ||= Subcategory.all
+    @subcategories ||= Subcategory.all.load_async
   end
 end

app/controllers/sqm_application_controller.rb

@@ -7,11 +7,11 @@ class SqmApplicationController < ApplicationController
 
   def set_schools_and_districts
     @district = District.find_by_slug district_slug
-    @districts = District.all.order(:name)
+    @districts = District.all.order(:name).load_async
     @school = School.find_by_slug(school_slug)
-    @schools = School.includes([:district]).where(district: @district).order(:name)
+    @schools = School.includes([:district]).where(district: @district).order(:name).load_async
     @academic_year = AcademicYear.find_by_range params[:year]
-    @academic_years = AcademicYear.all.order(range: :desc)
+    @academic_years = AcademicYear.all.order(range: :desc).load_async
   end
 
   def district_slug

config/environments/development.rb

@@ -71,4 +71,5 @@ Rails.application.configure do
   config.file_watcher = ActiveSupport::EventedFileUpdateChecker
 
   config.action_controller.include_all_helpers = false
+  config.active_record.async_query_executor = :global_thread_pool
 end

config/environments/production.rb

@@ -111,4 +111,5 @@ Rails.application.configure do
   # config.active_record.database_resolver_context = ActiveRecord::Middleware::DatabaseSelector::Resolver::Session
 
   config.action_controller.include_all_helpers = false
+  config.active_record.async_query_executor = :global_thread_pool
 end