1 files changed, 24 insertions, 1 deletions
diff --git a/app/controllers/application_controller.rb b/app/controllers/application_controller.rb
index 3a4c95db4..ba0098c71 100644
--- a/app/controllers/application_controller.rb
+++ b/app/controllers/application_controller.rb
@@ -31,6 +31,10 @@ class ApplicationController < ActionController::Base
     I18n.locale = I18n.default_locale
   end
 
+  def require_admin!
+    redirect_to root_path unless current_user&.admin?
+  end
+
   protected
 
   def not_found
@@ -46,6 +50,25 @@ class ApplicationController < ActionController::Base
   end
 
   def current_account
-    current_user.try(:account)
+    @current_account ||= current_user.try(:account)
+  end
+
+  def cache_collection(raw, klass)
+    uncached_ids           = []
+    cached_keys_with_value = Rails.cache.read_multi(*raw.map(&:cache_key))
+
+    raw.each do |item|
+      uncached_ids << item.id unless cached_keys_with_value.key?(item.cache_key)
+    end
+
+    unless uncached_ids.empty?
+      uncached = klass.where(id: uncached_ids).with_includes.map { |item| [item.id, item] }.to_h
+
+      uncached.values.each do |item|
+        Rails.cache.write(item.cache_key, item)
+      end
+    end
+
+    raw.map { |item| cached_keys_with_value[item.cache_key] || uncached[item.id] }.compact
   end
 end