method

transaction

v2.2.1 - Show latest stable - Class: ActiveRecord::ConnectionAdapters::DatabaseStatements

transaction(start_db_transaction = true)

public

Wrap a block in a transaction. Returns result of block.

# File activerecord/lib/active_record/connection_adapters/abstract/database_statements.rb, line 58
      def transaction(start_db_transaction = true)
        transaction_open = false
        begin
          if block_given?
            if start_db_transaction
              begin_db_transaction
              transaction_open = true
            end
            yield
          end
        rescue Exception => database_transaction_rollback
          if transaction_open
            transaction_open = false
            rollback_db_transaction
          end
          raise unless database_transaction_rollback.is_a? ActiveRecord::Rollback
        end
      ensure
        if transaction_open
          begin
            commit_db_transaction
          rescue Exception => database_transaction_rollback
            rollback_db_transaction
            raise
          end
        end
      end

1Note

Rollback

wiseleyb · Jan 3, 20111 thank

To rollback the transaction...

transaction do
unless user.save && company.save
   raise raise ActiveRecord::Rollback
end
end

Or - catch anonymous exceptions, roll back and re-throw error

transaction do
user.save
company.save
x = 1/0
rescue
exp = $!
begin
  raise ActiveRecord::Rollback
rescue
end
raise exp
end

transaction

1Note

Rollback

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