Rails migration default 0 is not false?

Question

In the migration file I have:

class AddEnabledToJob < ActiveRecord::Migration
  def change
    add_column :jobs, :enabled, :boolean, default: 0
  end
end

But then in my view I'm looking for every :enabled => false object:

<% @jobs.where(enabled: false).order("id DESC").each do |job| %>

This doesn't work. It works if I change it to:

<% @jobs.where(enabled: 0).order("id DESC").each do |job| %>

And this is confusing since I'm changing the enabled value to false somewhere else in my application so I have some Job objects with enabled: false and some with enabled: 0 . How can I correct this and why does it happen?

EDIT:

To expand on this issue I have populated all Jobs ( Job.all ) via the console and I see that the while the new records are created with default: 0 they have a value of false . So why is @jobs.where(enabled: false) failing to retrieve them?

Answer 1

use change_column_default to change default to false, and after allow each 0 to be false for old records:

def up
  change_column_default :jobs, :enabled, false
  Job.where(enabled: 0).update_all(enabled: false)
end

def down
  change_column_default :jobs, :enabled, 0
end