I may be overlooking something really obvious here but I'm not getting
it. I have a Category model. Categories can have sub categories and
parent categories, but when a category doesn't have a parent category,
its "parent_categoryid" field is set to null. As far as I know, what I
am doing here has been working in the past because there are many
categories in my categories table with null parent_categoryid fields.
For some reason, when I do:
c = Category.find(12345)
It returns false when c.parent_categoryid = NULL, and c.errors says
not a number"]}, ...
In the DB on the exact same record, I can do:
update categories set parent_categoryid = NULL where id = 12345;
And it works just fine. Any ideas why I'm getting this problem? I am
running Rails v1.2.6, PostgreSQL 8.2.4, and Ruby 1.8.6. The relevant
database constraints are:
Column | Type |