Improve fields.

lib/generators/active_record/devise_generator.rb

@@ -31,8 +31,8 @@ CONTENT
       def migration_data
 <<RUBY
       ## Database authenticatable
-      t.string :email,              :null => false
-      t.string :encrypted_password, :null => false
+      t.string :email,              :null => false, :default => ""
+      t.string :encrypted_password, :null => false, :default => ""
 
       ## Recoverable
       t.string   :reset_password_token

lib/generators/mongoid/devise_generator.rb

@@ -20,8 +20,8 @@ module Mongoid
       def migration_data
 <<RUBY
   ## Database authenticatable
-  field :email,              :type => String, :null => false
-  field :encrypted_password, :type => String, :null => false
+  field :email,              :type => String, :null => false, :default => ""
+  field :encrypted_password, :type => String, :null => false, :default => ""
 
   ## Recoverable
   field :reset_password_token,   :type => String
@@ -31,7 +31,7 @@ module Mongoid
   field :remember_created_at, :type => Time
 
   ## Trackable
-  field :sign_in_count,      :type => Integer
+  field :sign_in_count,      :type => Integer, :default => 0
   field :current_sign_in_at, :type => Time
   field :last_sign_in_at,    :type => Time
   field :current_sign_in_ip, :type => String
@@ -47,11 +47,11 @@ module Mongoid
   # field :unconfirmed_email,    :type => String # Only if using reconfirmable
 
   ## Lockable
-  # field :failed_attempts, :type => Integer # Only if lock strategy is :failed_attempts
+  # field :failed_attempts, :type => Integer, :default => 0 # Only if lock strategy is :failed_attempts
   # field :unlock_token,    :type => String # Only if unlock strategy is :email or :both
   # field :locked_at,       :type => Time
 
-  # Token authenticatable
+  ## Token authenticatable
   # field :authentication_token, :type => String
 RUBY
       end

test/rails_app/app/mongoid/admin.rb

@@ -5,5 +5,20 @@ class Admin
   include Shim
   include SharedAdmin
 
-  field :remember_token, :type => String
+  ## Database authenticatable
+  field :email,              :type => String, :null => false, :default => ""
+  field :encrypted_password, :type => String, :null => false, :default => ""
+
+  ## Recoverable
+  field :reset_password_token,   :type => String
+  field :reset_password_sent_at, :type => Time
+
+  ## Rememberable
+  field :remember_created_at, :type => Time
+
+  ## Encryptable
+  field :password_salt, :type => String
+
+  ## Lockable
+  field :locked_at, :type => Time
 end

test/rails_app/app/mongoid/user.rb

@@ -7,4 +7,39 @@ class User
 
   field :username, :type => String
   field :facebook_token, :type => String
+
+  ## Database authenticatable
+  field :email,              :type => String, :null => false, :default => ""
+  field :encrypted_password, :type => String, :null => false, :default => ""
+
+  ## Recoverable
+  field :reset_password_token,   :type => String
+  field :reset_password_sent_at, :type => Time
+
+  ## Rememberable
+  field :remember_created_at, :type => Time
+
+  ## Trackable
+  field :sign_in_count,      :type => Integer, :default => 0
+  field :current_sign_in_at, :type => Time
+  field :last_sign_in_at,    :type => Time
+  field :current_sign_in_ip, :type => String
+  field :last_sign_in_ip,    :type => String
+
+  ## Encryptable
+  # field :password_salt, :type => String
+
+  ## Confirmable
+  field :confirmation_token,   :type => String
+  field :confirmed_at,         :type => Time
+  field :confirmation_sent_at, :type => Time
+  # field :unconfirmed_email,    :type => String # Only if using reconfirmable
+
+  ## Lockable
+  field :failed_attempts, :type => Integer, :default => 0 # Only if lock strategy is :failed_attempts
+  field :unlock_token,    :type => String # Only if unlock strategy is :email or :both
+  field :locked_at,       :type => Time
+
+  # Token authenticatable
+  field :authentication_token, :type => String
 end