> > c) Anthony tried to force the transaction open with the FOR UPDATE clause, > but that doesn’t work in SQLite. >
To clarify, in recognition of the fact that SQLite does not support "FOR UPDATE", the DAL attempts to simulate it with SQLite by instead preceding the select with "BEGIN IMMEDIATE TRANSACTION" (this works in non-WAL mode because it locks the entire database for reads and writes). However, a bug was introduced to the DAL whereby in addition to executing "BEGIN IMMEDIATE TRANSACTION", it now *also* adds "FOR UPDATE" to the select itself, which results in an exception. My suggested workaround is to *not* use .select(..., for_update=True), which is broken, and to manually do what for_update used to do with SQLite, which is to execute "BEGIN IMMEDIATE TRANSACTION". I have opened an issue on Github regarding the bug. Anthony -- Resources: - http://web2py.com - http://web2py.com/book (Documentation) - http://github.com/web2py/web2py (Source code) - https://code.google.com/p/web2py/issues/list (Report Issues) --- You received this message because you are subscribed to the Google Groups "web2py-users" group. To unsubscribe from this group and stop receiving emails from it, send an email to web2py+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
