3 commits

Author	SHA1	Message	Date
Lin Jen-Shin	7839aa55f5	Use Arel to avoid MySQL triple quoting	2016-12-01 17:17:04 +08:00
Lin Jen-Shin	5747b0d3ed	Make deleting with optimistic locking respect NULL ... For now deleting with optimistic locking is broken when lock_version is still NULL, because Rails would try to delete with `lock_version = 0` while in the database the column is still `NULL`. The monkey patches would force Rails just pass whatever in the column, and stop Rails from casting `NULL` into `0` when the value is read from database. Closes #24766	2016-12-01 16:17:20 +08:00
Valery Sizov	8f9a7ca854	Revert the revert of Optimistic Locking	2016-08-22 18:43:13 +03:00