Fixing boo-boo in r11802 - but you can assign integers to booleans on all dbs

db/migrate/013_add_email_valid.rb

@@ -1,7 +1,7 @@
 class AddEmailValid < ActiveRecord::Migration
   def self.up
     add_column "users", "email_valid", :boolean, :default => false, :null => false
-    User.update_all(:email_valid => true)
+    User.update_all("email_valid = (active != 0)") #email_valid is :boolean, but active is :integer. "email_valid = active" (see r11802 or earlier) will fail for stricter dbs than mysql
   end
 
   def self.down