Mongoidがルビで失敗する1.9.3

Question

だから私はモンゴルのもので遊んでいる。新しいherokuアプリを作成し、それにmongolabオプションを追加しましたが、すべてのmongoidメソッドは失敗します。

私はグーグルで調べてみましたが、この問題は1.9.3より前のルビーとよく似ていましたが、私は1.9.3を実行しています。私は何

12:22:33 web.1 | NoMethodError - undefined method `match' for nil:NilClass: 
12:22:33 web.1 | /Users/sdx/.rvm/gems/ruby-1.9.3-p327/gems/mongoid-3.0.13/lib/mongoid/sessions/mongo_uri.rb:49:in `initialize' 
12:22:33 web.1 | /Users/sdx/.rvm/gems/ruby-1.9.3-p327/gems/mongoid-3.0.13/lib/mongoid/sessions/factory.rb:103:in `new' 
12:22:33 web.1 | /Users/sdx/.rvm/gems/ruby-1.9.3-p327/gems/mongoid-3.0.13/lib/mongoid/sessions/factory.rb:103:in `parse' 
12:22:33 web.1 | /Users/sdx/.rvm/gems/ruby-1.9.3-p327/gems/mongoid-3.0.13/lib/mongoid/sessions/factory.rb:62:in `create_session' 
12:22:33 web.1 | /Users/sdx/.rvm/gems/ruby-1.9.3-p327/gems/mongoid-3.0.13/lib/mongoid/sessions/factory.rb:43:in `default' 
12:22:33 web.1 | /Users/sdx/.rvm/gems/ruby-1.9.3-p327/gems/mongoid-3.0.13/lib/mongoid/sessions.rb:109:in `default' 
12:22:33 web.1 | /Users/sdx/.rvm/gems/ruby-1.9.3-p327/gems/mongoid-3.0.13/lib/mongoid/sessions.rb:378:in `__session__' 
12:22:33 web.1 | /Users/sdx/.rvm/gems/ruby-1.9.3-p327/gems/mongoid-3.0.13/lib/mongoid/sessions.rb:213:in `mongo_session' 
12:22:33 web.1 | /Users/sdx/.rvm/gems/ruby-1.9.3-p327/gems/mongoid-3.0.13/lib/mongoid/sessions.rb:157:in `collection' 
12:22:33 web.1 | /Users/sdx/.rvm/gems/ruby-1.9.3-p327/gems/mongoid-3.0.13/lib/mongoid/contextual/mongo.rb:216:in `initialize' 
12:22:33 web.1 | /Users/sdx/.rvm/gems/ruby-1.9.3-p327/gems/mongoid-3.0.13/lib/mongoid/contextual.rb:47:in `new' 
12:22:33 web.1 | /Users/sdx/.rvm/gems/ruby-1.9.3-p327/gems/mongoid-3.0.13/lib/mongoid/contextual.rb:47:in `create_context' 
12:22:33 web.1 | /Users/sdx/.rvm/gems/ruby-1.9.3-p327/gems/mongoid-3.0.13/lib/mongoid/contextual.rb:30:in `context' 
12:22:33 web.1 | /Users/sdx/.rvm/gems/ruby-1.9.3-p327/gems/mongoid-3.0.13/lib/mongoid/contextual.rb:20:in `rescue in exists?' 
12:22:33 web.1 | /Users/sdx/.rvm/gems/ruby-1.9.3-p327/gems/mongoid-3.0.13/lib/mongoid/contextual.rb:18:in `exists?' 
12:22:33 web.1 | /Users/sdx/.rvm/gems/ruby-1.9.3-p327/gems/mongoid-3.0.13/lib/mongoid/finders.rb:43:in `exists?' 
12:22:33 web.1 | app.rb:22:in `block in <main>' 
12:22:33 web.1 | /Users/sdx/.rvm/gems/ruby-1.9.3-p327/gems/sinatra-1.3.3/lib/sinatra/base.rb:1265:in `call' 
12:22:33 web.1 | /Users/sdx/.rvm/gems/ruby-1.9.3-p327/gems/sinatra-1.3.3/lib/sinatra/base.rb:1265:in `block in compile!' 
12:22:33 web.1 | /Users/sdx/.rvm/gems/ruby-1.9.3-p327/gems/sinatra-1.3.3/lib/sinatra/base.rb:835:in `[]' 
12:22:33 web.1 | /Users/sdx/.rvm/gems/ruby-1.9.3-p327/gems/sinatra-1.3.3/lib/sinatra/base.rb:835:in `block (3 levels) in route!' 
12:22:33 web.1 | /Users/sdx/.rvm/gems/ruby-1.9.3-p327/gems/sinatra-1.3.3/lib/sinatra/base.rb:851:in `route_eval' 
12:22:33 web.1 | /Users/sdx/.rvm/gems/ruby-1.9.3-p327/gems/sinatra-1.3.3/lib/sinatra/base.rb:835:in `block (2 levels) in route!' 
12:22:33 web.1 | /Users/sdx/.rvm/gems/ruby-1.9.3-p327/gems/sinatra-1.3.3/lib/sinatra/base.rb:872:in `block in process_route' 
12:22:33 web.1 | /Users/sdx/.rvm/gems/ruby-1.9.3-p327/gems/sinatra-1.3.3/lib/sinatra/base.rb:870:in `catch' 
12:22:33 web.1 | /Users/sdx/.rvm/gems/ruby-1.9.3-p327/gems/sinatra-1.3.3/lib/sinatra/base.rb:870:in `process_route' 
12:22:33 web.1 | /Users/sdx/.rvm/gems/ruby-1.9.3-p327/gems/sinatra-1.3.3/lib/sinatra/base.rb:834:in `block in route!' 
12:22:33 web.1 | /Users/sdx/.rvm/gems/ruby-1.9.3-p327/gems/sinatra-1.3.3/lib/sinatra/base.rb:833:in `each' 
12:22:33 web.1 | /Users/sdx/.rvm/gems/ruby-1.9.3-p327/gems/sinatra-1.3.3/lib/sinatra/base.rb:833:in `route!' 
12:22:33 web.1 | /Users/sdx/.rvm/gems/ruby-1.9.3-p327/gems/sinatra-1.3.3/lib/sinatra/base.rb:936:in `dispatch!' 
12:22:33 web.1 | /Users/sdx/.rvm/gems/ruby-1.9.3-p327/gems/sinatra-1.3.3/lib/sinatra/base.rb:769:in `block in call!' 
12:22:33 web.1 | /Users/sdx/.rvm/gems/ruby-1.9.3-p327/gems/sinatra-1.3.3/lib/sinatra/base.rb:921:in `block in invoke' 
12:22:33 web.1 | /Users/sdx/.rvm/gems/ruby-1.9.3-p327/gems/sinatra-1.3.3/lib/sinatra/base.rb:921:in `catch' 
12:22:33 web.1 | /Users/sdx/.rvm/gems/ruby-1.9.3-p327/gems/sinatra-1.3.3/lib/sinatra/base.rb:921:in `invoke' 
12:22:33 web.1 | /Users/sdx/.rvm/gems/ruby-1.9.3-p327/gems/sinatra-1.3.3/lib/sinatra/base.rb:769:in `call!' 
12:22:33 web.1 | /Users/sdx/.rvm/gems/ruby-1.9.3-p327/gems/sinatra-1.3.3/lib/sinatra/base.rb:755:in `call' 
12:22:33 web.1 | /Users/sdx/.rvm/gems/ruby-1.9.3-p327/gems/rack-protection-1.2.0/lib/rack/protection/xss_header.rb:22:in `call' 
12:22:33 web.1 | /Users/sdx/.rvm/gems/ruby-1.9.3-p327/gems/rack-protection-1.2.0/lib/rack/protection/path_traversal.rb:16:in `call' 
12:22:33 web.1 | /Users/sdx/.rvm/gems/ruby-1.9.3-p327/gems/rack-protection-1.2.0/lib/rack/protection/json_csrf.rb:17:in `call' 
12:22:33 web.1 | /Users/sdx/.rvm/gems/ruby-1.9.3-p327/gems/rack-protection-1.2.0/lib/rack/protection/base.rb:47:in `call' 
12:22:33 web.1 | /Users/sdx/.rvm/gems/ruby-1.9.3-p327/gems/rack-protection-1.2.0/lib/rack/protection/xss_header.rb:22:in `call' 
12:22:33 web.1 | /Users/sdx/.rvm/gems/ruby-1.9.3-p327/gems/rack-1.4.1/lib/rack/logger.rb:15:in `call' 
12:22:33 web.1 | /Users/sdx/.rvm/gems/ruby-1.9.3-p327/gems/rack-1.4.1/lib/rack/commonlogger.rb:20:in `call' 
12:22:33 web.1 | /Users/sdx/.rvm/gems/ruby-1.9.3-p327/gems/sinatra-1.3.3/lib/sinatra/base.rb:136:in `call' 
12:22:33 web.1 | /Users/sdx/.rvm/gems/ruby-1.9.3-p327/gems/sinatra-1.3.3/lib/sinatra/base.rb:129:in `call' 
12:22:33 web.1 | /Users/sdx/.rvm/gems/ruby-1.9.3-p327/gems/rack-1.4.1/lib/rack/head.rb:9:in `call' 
12:22:33 web.1 | /Users/sdx/.rvm/gems/ruby-1.9.3-p327/gems/rack-1.4.1/lib/rack/methodoverride.rb:21:in `call' 
12:22:33 web.1 | /Users/sdx/.rvm/gems/ruby-1.9.3-p327/gems/sinatra-1.3.3/lib/sinatra/showexceptions.rb:21:in `call' 
12:22:33 web.1 | /Users/sdx/.rvm/gems/ruby-1.9.3-p327/gems/sinatra-1.3.3/lib/sinatra/base.rb:99:in `call' 
12:22:33 web.1 | /Users/sdx/.rvm/gems/ruby-1.9.3-p327/gems/sinatra-1.3.3/lib/sinatra/base.rb:1389:in `block in call' 
12:22:33 web.1 | /Users/sdx/.rvm/gems/ruby-1.9.3-p327/gems/sinatra-1.3.3/lib/sinatra/base.rb:1471:in `synchronize' 
12:22:33 web.1 | /Users/sdx/.rvm/gems/ruby-1.9.3-p327/gems/sinatra-1.3.3/lib/sinatra/base.rb:1389:in `call' 
12:22:33 web.1 | /Users/sdx/.rvm/gems/ruby-1.9.3-p327/gems/thin-1.5.0/lib/thin/connection.rb:81:in `block in pre_process' 
12:22:33 web.1 | /Users/sdx/.rvm/gems/ruby-1.9.3-p327/gems/thin-1.5.0/lib/thin/connection.rb:79:in `catch' 
12:22:33 web.1 | /Users/sdx/.rvm/gems/ruby-1.9.3-p327/gems/thin-1.5.0/lib/thin/connection.rb:79:in `pre_process' 
12:22:33 web.1 | /Users/sdx/.rvm/gems/ruby-1.9.3-p327/gems/eventmachine-1.0.0/lib/eventmachine.rb:1037:in `call' 
12:22:33 web.1 | /Users/sdx/.rvm/gems/ruby-1.9.3-p327/gems/eventmachine-1.0.0/lib/eventmachine.rb:1037:in `block in spawn_threadpool' 
12:22:33 web.1 | 127.0.0.1 - - [21/Nov/2012 12:22:33] "GET /__sinatra__/500.png HTTP/1.1" 200 31056 0.0062 

：私は（mongolabのDBに対して）ローカルでこれを実行したり、Herokuの上で、私はエラーの同じ種類を取得天気を

require 'sinatra' 
require 'mongoid' 
require 'json' 
require "sinatra/reloader" if development? 

Mongoid.load!("mongoid.yml") 

class Company 
    include Mongoid::Document 

    field :code, type: String 
    field :sector, type: String 
    field :share_id, type: Integer 
    field :jse_code, type: Integer 
end 

get '/' do 
    "Hello" 
end 

get '/company' do 
    Company.exists? 
end 

：ここ

は、最も単純な失敗例です間違っている？ここを更新し

は私のmongoid.ymlです：mongo_uriのコンストラクタにnull値が渡されているように見えるのスタックトレースに基づいて

production: 
    sessions: 
     default: 
      uri: <%= ENV['MONGOLAB_URI'] %> 
      options: 
       skip_version_check: true 
       safe: true 
development: 
    sessions: 
     default: 
      uri: <%= ENV['MONGOLAB_URI'] %> 

Answer 1

。私はあなたのmongoid.ymlでは、以下の項目をチェックしたい：それはどのような環境変数を参照する場合、それは正しく

を構成しています

適切な場所に

• それは正しい場所にあります/引数load!にポイントを（例えばMONGOLAB_URIを
  ：MongoLab Herokuのアドオン）これらは、ご使用の環境に

関連する行を設定していることを、例外がスローされmongo_uri.rb:49、からのために

# Create the new uri from the provided string. 
    # 
    # @example Create the new uri. 
    # MongoUri.new(uri) 
    # 
    # @param [ String ] string The uri string. 
    # 
    # @since 3.0.0 
    def initialize(string) 
    @match = string.match(URI) 
    end 

Answer 2

資産をコンパイルするときに環境変数を使用しないherokuと関係があります。このラボは、Herokuの特色から

使用は、この問題に役立ちます：https://devcenter.heroku.com/articles/labs-user-env-compile