Browse other questions tagged ruby-on-rails activerecord transactions or ask your own question. A transaction like the one in the first snippet (without throwing exceptions), is not a Rails transaction at all. In any case the status flag is returned. Not the answer you're looking for? withdrawal (100) mary. I have an inventory system that tracks I have been reading that ActiveRecord Transactions are automatically wrapped around save and destroy actions. This method is available within the context of an ActiveRecord::Base instance.

The after_commit and after_rollback callbacks are guaranteed to be called for all models created, updated, or destroyed within a transaction block. transaction do david.

If any exceptions are raised within one of these callbacks, they will be ignored so that they don’t interfere with the other callbacks. As such, if your callback code could raise an exception, you’ll need to rescue it and handle it appropriately within the … A transaction like the one in the second snippet should rescue all exceptions (rescue => e), handle failure, and possibly raise the same exception again. ActiveRecord:: Base. If the status is true the transaction is committed, otherwise a ROLLBACK is issued. My question relates to the following scenario. Class methods (1) included (= v2.3.8); Instance methods (27) add_to_transaction; before_committed!

deposit (100) end This example will only take money from David and give it to Mary if neither withdrawal nor deposit raise an exception. If the status is true the transaction is committed, otherwise a ROLLBACK is issued. In any case the status flag is returned. Executes method within a transaction and captures its return value as a status flag. Related methods. This method is available within the context of an ActiveRecord::Base instance. – aercolino Dec 8 '12 at 18:27 Executes method within a transaction and captures its return value as a status flag.