new() Class Public methods

with_lock(lock = true) Instance Public methods Wraps the passed block in a transaction, locking the object before yielding. You can pass the SQL locking clause as argument (see lock!).

lock!(lock = true) Instance Public methods Obtain a row lock on this record. Reloads the record to obtain the requested lock. Pass an SQL locking clause to append the end of the SELECT statement or pass true for âFOR UPDATEâ (the default, an exclusive row lock). Returns the locked record.

update_counters(id, counters) Instance Public methods Make sure the lock version column gets updated when counters are updated.

reset_locking_column() Instance Public methods Reset the column used for optimistic locking back to the lock_version default.

quoted_locking_column() Instance Public methods Quote the column name used for optimistic locking.

locking_enabled?() Instance Public methods Returns true if the lock_optimistically flag is set to true (which it is, by default) and the table includes the locking_column column (defaults to lock_version).

locking_column=(value) Instance Public methods Set the column to use for optimistic locking. Defaults to lock_version.

locking_column() Instance Public methods The version column used for optimistic locking. Defaults to lock_version.

column_defaults() Instance Public methods