使用mongoid

Active Record迁移到mongoid

1. 修改文件：config/application.rb

require 'rails/all'　　修改为

require "action_controller/railtie"

require "action_mailer/railtie"

require "active_resource/railtie"

require "rails/test_unit/railtie"

注释　　config.active_record.whitelist_attributes = true

2. 修改文件：config/environments/development.rb，config/environments/test.rb

注释　　config.active_record.mass_assignment_sanitizer = :strict

注释　　config.active_record.auto_explain_threshold_in_seconds = 0.5

3. 删除文件：config/database.yml

4. 修改Gemfile

添加　　gem 'mongoid'

添加　　gem 'bson_ext'

5. 创建配置

$ rails g mongoid:config