修改密码验证的方法

app/controllers/account_controller.rb

@@ -154,7 +154,7 @@ class AccountController < ApplicationController
         else
           register_manually_by_administrator(@user)
         end
-       
+
        #added by bai
         if @user.id != nil
           ue = @user.user_extensions ||= UserExtensions.new
@@ -168,7 +168,7 @@ class AccountController < ApplicationController
           ue.location_city = params[:city] if params[:city] != nil
           ue.save
         end
-        
+
       end
     end
     if params[:identity] == "2"

app/models/user.rb

@@ -930,7 +930,7 @@ class User < Principal
 
   def validate_password_length
     # Password length validation based on setting
-    if !password.nil? && password.size < Setting.password_min_length.to_i
+    if password.nil? || password.size < Setting.password_min_length.to_i
       errors.add(:password, :too_short, :count => Setting.password_min_length.to_i)
     end
   end