Question

We have a boolean field in our system (using Rails 3.0.4) and when attached to MySQL the fields report true and false as appropriate. When attached to Oracle (production) it is returning Fixnum. The column is of type NUMBER(1). Other models correctly return true and false. The controller is doing a simple find. This only happens on the show action. Index returns true false. This happens for both HTML and XML responses. When asking for the type of a field the Console reports a class of FalseClass or TrueClass. The View reports Fixnum.

What could possibly be going wrong?

Updated: Code

create_table "people", :force => true do |t|
  t.string   "name"
  t.boolean  "has_information"
end

class Person < ActiveRecord::Base
  has_many :groups
end

Updated with a clearer question

The Rails convention is to make the field a NUMBER(1) type column. Then converts it to a boolean in the model. This is working in several models in our application. Only ONE model is having this issue. And it only has the issue on the show action. The show action was created by scaffold so is very generic. Why would it Rails not follow convention in this one instance?

Updated with solution

It was fixed in this instance by calling Person.find_by_id!(params[:id]) instead of Person.find(params[:id]) Why the default was returning the wrong class for a field in a normal find is beyond me.

Answer 1

The answer, update the Oracle Adapter because it is out of date. Version 1.3.0 of the activerecord-oracle_enhanced-adapter gem has a bug that was reported:

https://github.com/rsim/oracle-enhanced/issues/7

We updated the driver and everything works as expected now.