Comments on: Handling Multiple Checkbox Updates in SQL

By: johnb

johnb — Fri, 04 Apr 2008 15:48:36 +0000

there i was over complicating the problem – good points patrick.

with regards to the delete, yeah – i mentioned that in the second to last paragraph, I intentionally ommitted it from my posted cost.

By: Patrick McElhaney

Patrick McElhaney — Fri, 04 Apr 2008 15:33:48 +0000

I might be missing something in your code, but in case the user is already assigned to some groups, you need to handle clearing of checkboxes / removal from groups too.

begin transaction;

delete users_to_groups
where userid = #userid#

insert into users_to_groups
(userid, groupid)
select #userid#, groupid
from groups
where groupid in (#groupIDs#)

commit transaction;

By: Patrick McElhaney

Patrick McElhaney — Fri, 04 Apr 2008 15:30:52 +0000

I’ve been doing something similar for a long time, sans the user defined function.

insert into users_to_groups
(userid, groupid)
select #userid#, groupid
from groups
where groupid in (#groupIDs#)