MRT
I was following on : http://www.webassist.com/tutorials/Manage-relational-tables
I added same feature in my edit page. It shows the existing selected from DB(relationaltable)
After submitting form i m receiving error lik this:
Notice: Undefined index: ID in /***/edit-lockout-point.php on line 126
Notice: Undefined index: ID in /***/edit-lockout-point.php on line 218
Column 'LOPID' cannot be null
File Attached.