NoMethodError：未定义的方法`[]”假：FalseClass

这里有日志NoMethodError：未定义的方法`[]”假：FalseClass

umair-2:game-minion umairejaz$ rails c 
/Users/umairejaz/.rvm/gems/[email protected]/gems/railties-3.0.7/lib/rails/script_rails_loader.rb:11: warning: Insecure world writable dir /usr/local/bin in PATH, mode 040777 
/Users/umairejaz/.rvm/gems/[email protected]/gems/bundler-1.0.18/lib/bundler/runtime.rb:136: warning: Insecure world writable dir /usr/local/bin in PATH, mode 040777 
Loading development environment (Rails 3.0.7) 
ruby-1.9.2-p290 :001 > u = User.new 
=> #<User _id: 4e53f783713931a571000001, _type: nil, username: nil, first_name: nil, last_name: nil, email: nil, password: nil, password_salt: nil, password_hash: nil, profile_picture: nil, facebook_id: nil, facebook_enabled: nil, facebook_access_token: nil, twitter_id: nil, twitter_enabled: nil, twitter_access_token: nil, twitter_access_secret: nil, points: nil, remember_token: nil, remember_token_expires_at: nil> 
ruby-1.9.2-p290 :002 > u.username = "umair" 
=> "umair" 
ruby-1.9.2-p290 :003 > u.save(false) 
NoMethodError: undefined method `[]' for false:FalseClass 
from /Users/umairejaz/.rvm/gems/[email protected]/gems/mongoid-2.1.9/lib/mongoid/persistence/operations.rb:143:in `validating?' 
from /Users/umairejaz/.rvm/gems/[email protected]/gems/mongoid-2.1.9/lib/mongoid/persistence/insertion.rb:23:in `block in prepare' 
from /Users/umairejaz/.rvm/gems/[email protected]/gems/mongoid-2.1.9/lib/mongoid/persistence/insertion.rb:22:in `tap' 
from /Users/umairejaz/.rvm/gems/[email protected]/gems/mongoid-2.1.9/lib/mongoid/persistence/insertion.rb:22:in `prepare' 
from /Users/umairejaz/.rvm/gems/[email protected]/gems/mongoid-2.1.9/lib/mongoid/persistence/operations/insert.rb:26:in `persist' 
from /Users/umairejaz/.rvm/gems/[email protected]/gems/mongoid-2.1.9/lib/mongoid/persistence.rb:44:in `insert' 
from /Users/umairejaz/.rvm/gems/[email protected]/gems/mongoid-2.1.9/lib/mongoid/persistence.rb:142:in `upsert' 
from (irb):3 
from /Users/umairejaz/.rvm/gems/[email protected]/gems/railties-3.0.7/lib/rails/commands/console.rb:44:in `start' 
from /Users/umairejaz/.rvm/gems/[email protected]/gems/railties-3.0.7/lib/rails/commands/console.rb:8:in `start' 
from /Users/umairejaz/.rvm/gems/[email protected]/gems/railties-3.0.7/lib/rails/commands.rb:23:in `<top (required)>' 
from script/rails:6:in `require' 
from script/rails:6:in `<main>' 
ruby-1.9.2-p290 :004 >

，当我试图挽救一些对象，我得到这个上面的响应。 Follwoing是mongoid和蒙戈我的宝石版本，我认为是它的mongoid.yml的问题，但不知道我的阳明海运是完全正常的

使用BSON（1.3.1）使用bson_ext（1.3.1）使用蒙戈（1.3.1）安装mongoid（2.1.9）

mongoid.yml

defaults: &defaults 
    host: localhost 

development: 
    <<: *defaults 
    database: gm_development 

test: 
    <<: *defaults 
    database: gm_test 
production: 
    host: <%= ENV['MONGOID_HOST'] %> 
    port: <%= ENV['MONGOID_PORT'] %> 
    username: <%= ENV['MONGOID_USERNAME'] %> 
    password: <%= ENV['MONGOID_PASSWORD'] %> 
    database: <%= ENV['MONGOID_DATABASE'] %> 
    uri: mongodb://username:[email protected]:10029/appid

请让你发现任何错误在此

来源

2011-08-23 Umair Ejaz

User类的定义是什么？ –

尝试'保存（：验证=> false）' – apneadiving

'u.save（：validate => false）' – rubish

试试我知道：

u.save(:validate=> false)

来源

2011-08-23 20:45:57 apneadiving

这不是真的解决底层问题吗？坚持让自己在沙滩上行走就会在其他地方出现这个问题 –

@Bill Leeper：OP已经尝试过跳过验证，但使用了旧的语法'u.save（false）'。出现错误消息是由于语法错误。 – rekado

我张贴我的目标并获得对Rails 3.0的错误：

undefined method `[]' for false:FalseClass

但现在的工作找到后，我从我的代码更改：

save(false)

到：

save(:validate=> false)

来源

2012-03-06 07:00:37

这个答案除了接受之外还添加了新的信息吗？ –

NoMethodError：未定义的方法`[]”假：FalseClass

回答

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