使用Rails安装Mongoid 3.2.2

我想要使用Mongoid与导轨3.2.2，我已经添加了：使用Rails安装Mongoid 3.2.2

gem "mongoid", "~> 2.4" 
gem "bson_ext", "~> 1.5"

我的Gemfile，运行：

bundle install

然后

rails g mongoid:config

然后编辑我的application.rb中这样：

#require "active_record/railtie" commented because of mongoid 
require "action_controller/railtie" 
require "action_mailer/railtie" 
require "active_resource/railtie" 
require "sprockets/railtie"

和我有mongoid.yml：

development: 
    host: localhost 
    database: boards_development 

test: 
    host: localhost 
    database: boards_test 

# set these environment variables on your prod server 
production: 
    host: <%= ENV['MONGOID_HOST'] %> 
    port: <%= ENV['MONGOID_PORT'] %> 
    username: <%= ENV['MONGOID_USERNAME'] %> 
    password: <%= ENV['MONGOID_PASSWORD'] %> 
    database: <%= ENV['MONGOID_DATABASE'] %> 
    # slaves: 
    # - host: slave1.local 
    #  port: 27018 
    # - host: slave2.local 
    #  port: 27019

我已经删除databse.yml如在mongoid文档说，但是当运行轨道服务器我得到的错误是这样的：

[email protected]:~/Matteo/Dev/boards$ rails s 
=> Booting WEBrick 
=> Rails 3.2.2 application starting in development on http://0.0.0.0:3000 
=> Call with -d to detach 
=> Ctrl-C to shutdown server 
Exiting 
/home/matteo/.rvm/gems/ruby-1.9.3-p125/gems/railties-3.2.2/lib/rails/railtie/configuration.rb:85:in `method_missing': undefined method `active_record' for #<Rails::Application::Configuration:0x8eb762c> (NoMethodError) 
    from /home/matteo/Matteo/Dev/boards/config/environments/development.rb:26:in `block in <top (required)>' 
    from /home/matteo/.rvm/gems/ruby-1.9.3-p125/gems/railties-3.2.2/lib/rails/railtie/configurable.rb:24:in `class_eval' 
    from /home/matteo/.rvm/gems/ruby-1.9.3-p125/gems/railties-3.2.2/lib/rails/railtie/configurable.rb:24:in `configure' 
    from /home/matteo/Matteo/Dev/boards/config/environments/development.rb:1:in `<top (required)>' 
    from /home/matteo/.rvm/gems/ruby-1.9.3-p125/gems/activesupport-3.2.2/lib/active_support/dependencies.rb:251:in `require' 
    from /home/matteo/.rvm/gems/ruby-1.9.3-p125/gems/activesupport-3.2.2/lib/active_support/dependencies.rb:251:in `block in require' 
    from /home/matteo/.rvm/gems/ruby-1.9.3-p125/gems/activesupport-3.2.2/lib/active_support/dependencies.rb:236:in `load_dependency' 
    from /home/matteo/.rvm/gems/ruby-1.9.3-p125/gems/activesupport-3.2.2/lib/active_support/dependencies.rb:251:in `require' 
    from /home/matteo/.rvm/gems/ruby-1.9.3-p125/gems/railties-3.2.2/lib/rails/engine.rb:571:in `block in <class:Engine>' 
    from /home/matteo/.rvm/gems/ruby-1.9.3-p125/gems/railties-3.2.2/lib/rails/initializable.rb:30:in `instance_exec' 
    from /home/matteo/.rvm/gems/ruby-1.9.3-p125/gems/railties-3.2.2/lib/rails/initializable.rb:30:in `run' 
    from /home/matteo/.rvm/gems/ruby-1.9.3-p125/gems/railties-3.2.2/lib/rails/initializable.rb:55:in `block in run_initializers' 
    from /home/matteo/.rvm/gems/ruby-1.9.3-p125/gems/railties-3.2.2/lib/rails/initializable.rb:54:in `each' 
    from /home/matteo/.rvm/gems/ruby-1.9.3-p125/gems/railties-3.2.2/lib/rails/initializable.rb:54:in `run_initializers' 
    from /home/matteo/.rvm/gems/ruby-1.9.3-p125/gems/railties-3.2.2/lib/rails/application.rb:136:in `initialize!' 
    from /home/matteo/.rvm/gems/ruby-1.9.3-p125/gems/railties-3.2.2/lib/rails/railtie/configurable.rb:30:in `method_missing' 
    from /home/matteo/Matteo/Dev/boards/config/environment.rb:5:in `<top (required)>' 
    from /home/matteo/Matteo/Dev/boards/config.ru:4:in `require' 
    from /home/matteo/Matteo/Dev/boards/config.ru:4:in `block in <main>' 
    from /home/matteo/.rvm/gems/ruby-1.9.3-p125/gems/rack-1.4.1/lib/rack/builder.rb:51:in `instance_eval' 
    from /home/matteo/.rvm/gems/ruby-1.9.3-p125/gems/rack-1.4.1/lib/rack/builder.rb:51:in `initialize' 
    from /home/matteo/Matteo/Dev/boards/config.ru:1:in `new' 
    from /home/matteo/Matteo/Dev/boards/config.ru:1:in `<main>' 
    from /home/matteo/.rvm/gems/ruby-1.9.3-p125/gems/rack-1.4.1/lib/rack/builder.rb:40:in `eval' 
    from /home/matteo/.rvm/gems/ruby-1.9.3-p125/gems/rack-1.4.1/lib/rack/builder.rb:40:in `parse_file' 
    from /home/matteo/.rvm/gems/ruby-1.9.3-p125/gems/rack-1.4.1/lib/rack/server.rb:200:in `app' 
    from /home/matteo/.rvm/gems/ruby-1.9.3-p125/gems/railties-3.2.2/lib/rails/commands/server.rb:46:in `app' 
    from /home/matteo/.rvm/gems/ruby-1.9.3-p125/gems/rack-1.4.1/lib/rack/server.rb:301:in `wrapped_app' 
    from /home/matteo/.rvm/gems/ruby-1.9.3-p125/gems/rack-1.4.1/lib/rack/server.rb:252:in `start' 
    from /home/matteo/.rvm/gems/ruby-1.9.3-p125/gems/railties-3.2.2/lib/rails/commands/server.rb:70:in `start' 
    from /home/matteo/.rvm/gems/ruby-1.9.3-p125/gems/railties-3.2.2/lib/rails/commands.rb:55:in `block in <top (required)>' 
    from /home/matteo/.rvm/gems/ruby-1.9.3-p125/gems/railties-3.2.2/lib/rails/commands.rb:50:in `tap' 
    from /home/matteo/.rvm/gems/ruby-1.9.3-p125/gems/railties-3.2.2/lib/rails/commands.rb:50:in `<top (required)>' 
    from script/rails:6:in `require' 
    from script/rails:6:in `<main>' 
[email protected]:~/Matteo/Dev/boards$ rails s 
=> Booting WEBrick 
=> Rails 3.2.2 application starting in development on http://0.0.0.0:3000 
=> Call with -d to detach 
=> Ctrl-C to shutdown server 
host is not a valid option for Mongo::Connection 
[2012-03-16 20:00:08] INFO WEBrick 1.3.1 
[2012-03-16 20:00:08] INFO ruby 1.9.3 (2012-02-16) [i686-linux] 
[2012-03-16 20:00:08] INFO WEBrick::HTTPServer#start: pid=9936 port=3000 
^C[2012-03-16 20:01:03] INFO going to shutdown ... 
[2012-03-16 20:01:03] INFO WEBrick::HTTPServer#start done. 
Exiting

离开关于活动记录的行我没有得到任何错误，但这是：

host is not a valid option for Mongo::Connection

我应该安装其他的东西吗？

来源

2012-03-16 Matteo Pagliazzi

哦，不，这只是计算器 – 2012-03-16 19:52:18

我有一个类似的问题（除主机问题） - 但你不应该删除的database.yml，根据自己的文档： “现在你有一个mongoid.yml，你不能等待删除那个讨厌的dat abase.yml，对吧？做到这一点，你就会开始在所有地方发现ActiveRecord错误。“http://mongoid.org/docs/installation/configuration.html @ pierre-louis-g有正确的解决方法，下面我提到了两条提到的路线主动记录和我的安装现在工作。 – jbnunn 2012-03-30 11:19:55

您从您的应用程序删除ActiveRecord的，但你仍然有它的配置选项。查看“active_record”中的environment.rb和application.rb（以及/ config下的其他文件）。

来源

2012-03-16 21:00:10

你也必须在配置/环境/ development.rb行代码注释

由于Rails的3.2，他们将2线在这个文件中所说的“active_record”代码。只是评论它

# Raise exception on mass assignment protection for Active Record models 
    config.active_record.mass_assignment_sanitizer = :strict 

    # Log the query plan for queries taking more than this (works 
    # with SQLite, MySQL, and PostgreSQL) 
    config.active_record.auto_explain_threshold_in_seconds = 0.5

编辑：关于主机的问题，它的怪异，但答案是否定的，你不应该安装别的东西......

来源

2012-03-16 21:00:04

下次尝试使用rails模板。他们会帮助你较快地启动，将增加很多其他不错的宝石，你将很快需要：

https://github.com/RailsApps/rails3-application-templates

如果你想安装不活跃记录一个Rails3中的项目，使用此命令，并添加mongoid到后来的Gemfile没有任何麻烦：

rails new appname --skip-active-record

来源

2012-04-29 15:16:51 Fa11enAngel

使用Rails安装Mongoid 3.2.2

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