diff options
| -rw-r--r-- | activerecord/lib/active_record/connection_adapters/abstract/query_cache.rb | 20 | ||||
| -rw-r--r-- | activerecord/test/cases/query_cache_test.rb | 24 |
2 files changed, 37 insertions, 7 deletions
diff --git a/activerecord/lib/active_record/connection_adapters/abstract/query_cache.rb b/activerecord/lib/active_record/connection_adapters/abstract/query_cache.rb index 25622e34c8..8aeb934ec2 100644 --- a/activerecord/lib/active_record/connection_adapters/abstract/query_cache.rb +++ b/activerecord/lib/active_record/connection_adapters/abstract/query_cache.rb @@ -110,12 +110,7 @@ module ActiveRecord if @query_cache[sql].key?(binds) ActiveSupport::Notifications.instrument( "sql.active_record", - sql: sql, - binds: binds, - type_casted_binds: -> { type_casted_binds(binds) }, - name: name, - connection_id: object_id, - cached: true, + cache_notification_info(sql, name, binds) ) @query_cache[sql][binds] else @@ -125,6 +120,19 @@ module ActiveRecord end end + # Database adapters can override this method to + # provide custom cache information. + def cache_notification_info(sql, name, binds) + { + sql: sql, + binds: binds, + type_casted_binds: -> { type_casted_binds(binds) }, + name: name, + connection_id: object_id, + cached: true + } + end + # If arel is locked this is a SELECT ... FOR UPDATE or somesuch. Such # queries should not be cached. def locked?(arel) diff --git a/activerecord/test/cases/query_cache_test.rb b/activerecord/test/cases/query_cache_test.rb index 0f990bac9d..1c05571f1b 100644 --- a/activerecord/test/cases/query_cache_test.rb +++ b/activerecord/test/cases/query_cache_test.rb @@ -13,12 +13,13 @@ class QueryCacheTest < ActiveRecord::TestCase fixtures :tasks, :topics, :categories, :posts, :categories_posts class ShouldNotHaveExceptionsLogger < ActiveRecord::LogSubscriber - attr_reader :logger + attr_reader :logger, :events def initialize super @logger = ::Logger.new File::NULL @exception = false + @events = [] end def exception? @@ -26,6 +27,7 @@ class QueryCacheTest < ActiveRecord::TestCase end def sql(event) + @events << event super rescue @exception = true @@ -265,6 +267,26 @@ class QueryCacheTest < ActiveRecord::TestCase end end + def test_cache_notifications_can_be_overridden + logger = ShouldNotHaveExceptionsLogger.new + subscriber = ActiveSupport::Notifications.subscribe "sql.active_record", logger + + connection = ActiveRecord::Base.connection.dup + + def connection.cache_notification_info(sql, name, binds) + super.merge(neat: true) + end + + connection.cache do + connection.select_all "select 1" + connection.select_all "select 1" + end + + assert_equal true, logger.events.last.payload[:neat] + ensure + ActiveSupport::Notifications.unsubscribe subscriber + end + def test_cache_does_not_raise_exceptions logger = ShouldNotHaveExceptionsLogger.new subscriber = ActiveSupport::Notifications.subscribe "sql.active_record", logger |