Some error about models.

[eluser]danmontgomery[/eluser]
It's a MySQL error:

General error: 1452 Cannot add or update a child row: a foreign key constraint fails (`ci_doctrine`.`bank`, CONSTRAINT `bank_category_id_category_id` FOREIGN KEY (`category_id`) REFERENCES `category` (`id`))

I would guess that category.id isn't indexed or is indexed improperly