Hi Folks,
while using the Masochism plugin for Master-Slave database setup (http://github.com/technoweenie/masochism/tree/master) I discovered a problem with starting transactions in the ConnectionProxy:
79 def transaction(start_db_transaction = true, &block) 80 with_master(start_db_transaction) do 81 master.transaction(start_db_transaction, &block) 82 end 83 end
Despite there is a problem in Masochism itself I discovered there is (at least for me) a strange behavior in the AbstractAdapter within ActiveRecord:
158 def decrement_open_transactions 159 @open_transactions -= 1 160 end
In some cases there is the decrement_open_transactions method called for connections with an uninitialized @open_transactions variable (the value is nil). I tracked this down to the initialize method in the same class. Besides other initializations the @open_transactions variable is not initialized:
37 def initialize(connection, logger = nil) #:nodoc: 38 @connection, @logger = connection, logger 39 @runtime = 0 40 @last_verification = 0 41 @query_cache_enabled = false 42 end
Is there a reason to init the variable via the attribute accessor?
149 def open_transactions 150 @open_transactions ||= 0 151 end
Thanks in advance!
Dirk