Database connections are now pooled, one pool per #establish_connection call.

Pools start out empty and grow as necessary to a maximum size (default is 5,
configure size with key 'pool' in your database configuration). If no
connections are available, a thread will wait up to a 'wait_timeout' time
(default is 5 seconds).

Connections are verified and reset when checked out from the pool (usually
upon first access to ActiveRecord::Base.connection), and returned back to the
pool after each request.

If you would like to use connection pools outside of ActionPack, there is an
ActiveRecord::Base.connection_pool method that gives you access to the pool,
and you can manually checkout/checkin connections, or supply a block to
ActiveRecord::Base.connection_pool.with_connection which takes care of the
checkout/checkin for you.

[#936 state:resolved]

1 files changed, 1 insertions, 1 deletions

diff --git a/activemodel/lib/active_model/validations.rb b/activemodel/lib/active_model/validations.rb
index 7efe9901ca..460d2d82e5 100644
--- a/activemodel/lib/active_model/validations.rb
+++ b/activemodel/lib/active_model/validations.rb
@@ -4,7 +4,7 @@ module ActiveModel
   module Validations
     def self.included(base) # :nodoc:
       base.extend(ClassMethods)
-      base.send!(:include, ActiveSupport::Callbacks)
+      base.__send__(:include, ActiveSupport::Callbacks)
       base.define_callbacks :validate, :validate_on_create, :validate_on_update
     end