1 files changed, 4 insertions, 4 deletions
diff --git a/activerecord/lib/active_record/connection_adapters/abstract_adapter.rb b/activerecord/lib/active_record/connection_adapters/abstract_adapter.rb
index 0c7197a002..137396a677 100644
--- a/activerecord/lib/active_record/connection_adapters/abstract_adapter.rb
+++ b/activerecord/lib/active_record/connection_adapters/abstract_adapter.rb
@@ -62,17 +62,17 @@ module ActiveRecord
     # notably, the instance methods provided by SchemaStatements are very useful.
     class AbstractAdapter
       ADAPTER_NAME = "Abstract".freeze
+      include ActiveSupport::Callbacks
+      define_callbacks :checkout, :checkin
+
       include Quoting, DatabaseStatements, SchemaStatements
       include DatabaseLimits
       include QueryCache
-      include ActiveSupport::Callbacks
       include ColumnDumper
       include Savepoints
 
       SIMPLE_INT = /\A\d+\z/
 
-      define_callbacks :checkout, :checkin
-
       attr_accessor :visitor, :pool
       attr_reader :schema_cache, :owner, :logger
       alias :in_use? :owner
@@ -106,7 +106,7 @@ module ActiveRecord
         @pool                = nil
         @schema_cache        = SchemaCache.new self
         @quoted_column_names, @quoted_table_names = {}, {}
-        @visitor             = arel_visitor
+        @visitor = arel_visitor
 
         if self.class.type_cast_config_to_boolean(config.fetch(:prepared_statements) { true })
           @prepared_statements = true