Webmaster Forum / ColdFusion / Advanced Techniques / August 2005

The question has come up, how to lock a section of an application so two users
can not update the same form at once.  Let?s say there is some type of work
flow in an HR application.  There is a section to update an employee's Contact
Information.  

There is one to many administrators that have access to update this
information.  How can you prevent admin 2 from loading the form to update John
Doe's information, if admin 1 is already making changes?

If there isn't any locking feature put in place, admin 1 could make a change,
but if admin 2 loaded the form before admin 1 was finished, admin 2 could
overwrite the changes.

Any recommend ways to solve this problem would be greatly appreciated?