module NoTransactionBlock                                                       
                                                                                  
    module Nothing                                                                
      def nothing                                                                 
        puts "CALLED"                                                             
      end                                                                         
    end                                                                           
                                                                                  
    module MigrationHelpers                                                       
      def without_transaction_block(&block)                                       
        ActiveRecord::ConnectionAdapters::PostgreSQLAdapter.send(:include,Nothing)
        ActiveRecord::ConnectionAdapters::PostgreSQLAdapter.class_eval do         
          alias_method :orig_begin_db_transaction, :begin_db_transaction          
          alias_method :orig_commit_db_transaction, :commit_db_transaction        
          alias_method :orig_rollback_db_transaction, :rollback_db_transaction    
                                                                                  
          alias_method :begin_db_transaction, :nothing                            
          alias_method :commit_db_transaction, :nothing                           
          alias_method :rollback_db_transaction, :nothing                         
        end                                                                       
        block.call                                                                
      end                                                                         
    end                                                                           
                                                                                  
    def self.included(base)                                                       
      base.extend MigrationHelpers                                                
    end                                                                           
                                                                                  
  end                                                                             
                                                                                  
  include NoTransactionBlock