使用 gem "bullet"修复 "declarative_authorization" gem 中的 N+1 查询

Question

目前我正在开发一个大型web应用程序，为了使它工作得更快，我决定重构所有N+1查询(以减少对数据库的请求数量，http://rails-bestpractices.com/posts/29-fix-n-1-queries)。所以我安装了gem"bullet"，它现在不能与Rails 3.1.1一起工作(你可以从https://github.com/flyerhzm/bullet使用fork)。当在每个页面上使用declarative_authorization gem时，我得到相同的警报:

N+1 Query detected
  Role => [:permissions]
  Add to your finder: :include => [:permissions]
N+1 Query detected
  Permission => [:permission_rules]
  Add to your finder: :include => [:permission_rules]
CACHE (0.0ms)  SELECT "roles".* FROM "roles" 
  CACHE (0.0ms)  SELECT "permissions".* FROM "permissions" WHERE "permissions"."role_id" = 1
  CACHE (0.0ms)  SELECT "permissions".* FROM "permissions" WHERE "permissions"."role_id" = 2
  CACHE (0.0ms)  SELECT "permissions".* FROM "permissions" WHERE "permissions"."role_id" = 3
  CACHE (0.0ms)  SELECT "permissions".* FROM "permissions" WHERE "permissions"."role_id" = 4
  CACHE (0.0ms)  SELECT "permissions".* FROM "permissions" WHERE "permissions"."role_id" = 6
  CACHE (0.0ms)  SELECT "permissions".* FROM "permissions" WHERE "permissions"."role_id" = 7
  CACHE (0.0ms)  SELECT "permissions".* FROM "permissions" WHERE "permissions"."role_id" = 8
  CACHE (0.0ms)  SELECT "permission_rules".* FROM "permission_rules" INNER JOIN "permission_rules_permissions" ON "permission_rules"."id" = "permission_rules_permissions"."permission_rule_id" WHERE "permission_rules_permissions"."permission_id" = 30
  CACHE (0.0ms)  SELECT "permission_rules".* FROM "permission_rules" INNER JOIN "permission_rules_permissions" ON "permission_rules"."id" = "permission_rules_permissions"."permission_rule_id" WHERE "permission_rules_permissions"."permission_id" = 31
...

你能帮我一下，让这个查询更快吗?

Answer 1

我会移除宝石，但在两个模型中分别添加:include。