Rake：移行しようとすると表が存在しないと言っています....いいえ、それは存在しません。そのため、移行しようとしています。

Question

コマンドおよびトレース：

% rake db:migrate RAILS_ENV=test --trace 
(in /Users/lprestonsegoiii/Work/GravityLabs/TinderBox) 
** Invoke db:migrate (first_time) 
** Invoke environment (first_time) 
** Execute environment 
rake aborted! 
Mysql::Error: Table 'project.medias' doesn't exist: SHOW FIELDS FROM `medias` 
/Library/Ruby/Gems/1.8/gems/activerecord-2.3.8/lib/active_record/connection_adapters/abstract_adapter.rb:221:in `log' 
/Library/Ruby/Gems/1.8/gems/activerecord-2.3.8/lib/active_record/connection_adapters/mysql_adapter.rb:323:in `execute' 
/Library/Ruby/Gems/1.8/gems/activerecord-2.3.8/lib/active_record/connection_adapters/mysql_adapter.rb:470:in `columns' 
/Library/Ruby/Gems/1.8/gems/activerecord-2.3.8/lib/active_record/base.rb:1301:in `columns' 
/Library/Ruby/Gems/1.8/gems/activerecord-2.3.8/lib/active_record/base.rb:1314:in `column_names' 
/Library/Ruby/Gems/1.8/gems/searchlogic-2.5.6/lib/searchlogic/named_scopes/ordering.rb:33:in `ordering_condition_details' 
/Library/Ruby/Gems/1.8/gems/searchlogic-2.5.6/lib/searchlogic/named_scopes/ordering.rb:25:in `create_condition' 
/Library/Ruby/Gems/1.8/gems/searchlogic-2.5.6/lib/searchlogic/named_scopes/or_conditions.rb:28:in `create_condition' 
/Library/Ruby/Gems/1.8/gems/searchlogic-2.5.6/lib/searchlogic/named_scopes/column_conditions.rb:63:in `respond_to?' 
/Library/Ruby/Gems/1.8/gems/activerecord-2.3.8/lib/active_record/base.rb:1511:in `respond_to?' 
/Library/Ruby/Gems/1.8/gems/paperclip-2.4.0/lib/paperclip.rb:402:in `attachment_definitions' 
/Library/Ruby/Gems/1.8/gems/paperclip-2.4.0/lib/paperclip.rb:283:in `has_attached_file' 
/project/app/models/media.rb:23 
/Library/Ruby/Gems/1.8/gems/activesupport-2.3.8/lib/active_support/dependencies.rb:158:in `require' 
/Library/Ruby/Gems/1.8/gems/activesupport-2.3.8/lib/active_support/dependencies.rb:158:in `require' 
/Library/Ruby/Gems/1.8/gems/activesupport-2.3.8/lib/active_support/dependencies.rb:265:in `require_or_load' 
/Library/Ruby/Gems/1.8/gems/activesupport-2.3.8/lib/active_support/dependencies.rb:425:in `load_missing_constant' 
/Library/Ruby/Gems/1.8/gems/activesupport-2.3.8/lib/active_support/dependencies.rb:80:in `const_missing' 
/Library/Ruby/Gems/1.8/gems/activesupport-2.3.8/lib/active_support/dependencies.rb:92:in `const_missing' 
project/test/factories/general.rb:87 #This is where Media is referenced... but it should have errored about any of the other 10 Models that don't have tables above where this one is used in this file.... 
/Library/Ruby/Gems/1.8/gems/activesupport-2.3.8/lib/active_support/dependencies.rb:147:in `load_without_new_constant_marking' 
/Library/Ruby/Gems/1.8/gems/activesupport-2.3.8/lib/active_support/dependencies.rb:147:in `load' 
/Library/Ruby/Gems/1.8/gems/factory_girl-2.0.5/lib/factory_girl/find_definitions.rb:20:in `find_definitions' 
/Library/Ruby/Gems/1.8/gems/factory_girl-2.0.5/lib/factory_girl/find_definitions.rb:19:in `each' 
/Library/Ruby/Gems/1.8/gems/factory_girl-2.0.5/lib/factory_girl/find_definitions.rb:19:in `find_definitions' 
/Library/Ruby/Gems/1.8/gems/factory_girl-2.0.5/lib/factory_girl/find_definitions.rb:15:in `each' 
/Library/Ruby/Gems/1.8/gems/factory_girl-2.0.5/lib/factory_girl/find_definitions.rb:15:in `find_definitions' 
/Library/Ruby/Gems/1.8/gems/factory_girl-2.0.5/lib/factory_girl/rails2.rb:6 
/Library/Ruby/Gems/1.8/gems/rails-2.3.8/lib/initializer.rb:614:in `call' 
/Library/Ruby/Gems/1.8/gems/rails-2.3.8/lib/initializer.rb:614:in `after_initialize' 
/Library/Ruby/Gems/1.8/gems/rails-2.3.8/lib/initializer.rb:613:in `each' 
/Library/Ruby/Gems/1.8/gems/rails-2.3.8/lib/initializer.rb:613:in `after_initialize' 
/Library/Ruby/Gems/1.8/gems/rails-2.3.8/lib/initializer.rb:179:in `process' 
/Library/Ruby/Gems/1.8/gems/rails-2.3.8/lib/initializer.rb:113:in `send' 
/Library/Ruby/Gems/1.8/gems/rails-2.3.8/lib/initializer.rb:113:in `run' 
/project/config/environment.rb:17 #why does it jump into the env? this is irrelevant to raking. 
/Library/Ruby/Gems/1.8/gems/activesupport-2.3.8/lib/active_support/dependencies.rb:156:in `require' 
/Library/Ruby/Gems/1.8/gems/activesupport-2.3.8/lib/active_support/dependencies.rb:156:in `require' 
/Library/Ruby/Gems/1.8/gems/activesupport-2.3.8/lib/active_support/dependencies.rb:521:in `new_constants_in' 
/Library/Ruby/Gems/1.8/gems/activesupport-2.3.8/lib/active_support/dependencies.rb:156:in `require' 
/Library/Ruby/Gems/1.8/gems/rails-2.3.8/lib/tasks/misc.rake:4 
/Library/Ruby/Gems/1.8/gems/rake-0.8.7/lib/rake.rb:636:in `call' 
/Library/Ruby/Gems/1.8/gems/rake-0.8.7/lib/rake.rb:636:in `execute' 
/Library/Ruby/Gems/1.8/gems/rake-0.8.7/lib/rake.rb:631:in `each' 
/Library/Ruby/Gems/1.8/gems/rake-0.8.7/lib/rake.rb:631:in `execute' 
/Library/Ruby/Gems/1.8/gems/rake-0.8.7/lib/rake.rb:597:in `invoke_with_call_chain' 
/System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/1.8/monitor.rb:242:in `synchronize' 
/Library/Ruby/Gems/1.8/gems/rake-0.8.7/lib/rake.rb:590:in `invoke_with_call_chain' 
/Library/Ruby/Gems/1.8/gems/rake-0.8.7/lib/rake.rb:607:in `invoke_prerequisites' 
/Library/Ruby/Gems/1.8/gems/rake-0.8.7/lib/rake.rb:604:in `each' 
/Library/Ruby/Gems/1.8/gems/rake-0.8.7/lib/rake.rb:604:in `invoke_prerequisites' 
/Library/Ruby/Gems/1.8/gems/rake-0.8.7/lib/rake.rb:596:in `invoke_with_call_chain' 
/System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/1.8/monitor.rb:242:in `synchronize' 
/Library/Ruby/Gems/1.8/gems/rake-0.8.7/lib/rake.rb:590:in `invoke_with_call_chain' 
/Library/Ruby/Gems/1.8/gems/rake-0.8.7/lib/rake.rb:583:in `invoke' 
/Library/Ruby/Gems/1.8/gems/rake-0.8.7/lib/rake.rb:2051:in `invoke_task' 
/Library/Ruby/Gems/1.8/gems/rake-0.8.7/lib/rake.rb:2029:in `top_level' 
/Library/Ruby/Gems/1.8/gems/rake-0.8.7/lib/rake.rb:2029:in `each' 
/Library/Ruby/Gems/1.8/gems/rake-0.8.7/lib/rake.rb:2029:in `top_level' 
/Library/Ruby/Gems/1.8/gems/rake-0.8.7/lib/rake.rb:2068:in `standard_exception_handling' 
/Library/Ruby/Gems/1.8/gems/rake-0.8.7/lib/rake.rb:2023:in `top_level' 
/Library/Ruby/Gems/1.8/gems/rake-0.8.7/lib/rake.rb:2001:in `run' 
/Library/Ruby/Gems/1.8/gems/rake-0.8.7/lib/rake.rb:2068:in `standard_exception_handling' 
/Library/Ruby/Gems/1.8/gems/rake-0.8.7/lib/rake.rb:1998:in `run' 
/Library/Ruby/Gems/1.8/gems/rake-0.8.7/bin/rake:31 
/usr/bin//rake:19:in `load' 
/usr/bin//rake:19 

EDIT： 最初の移行ファイル： http://pastebin.com/49aJe2wv それもまだ存在していない上erroringだテーブル。

テストDBにテーブルがありません。

EDIT2：スタックトレースの詳細一般 工場/：87

Factory.define :media, :class => Media do |m| #line 87 <---- 
    m.name "Alice is in an asian wonderland" 
    m.document_file_name "alice_test_image.jpeg" 
    m.document_content_type "image/jpeg" 
    m.document_file_size "155548" 
... 
end 

EDIT3： Media.rb http://pastebin.com/rZpdBTyq

Answer 1

まず第一に、私たちはあなたの移行のすべてを確認する必要があります。マイグレーションを削除したり、作成後に変更した場合、この種の動作につながる可能性があります（または、スキャフォールディングを使用して移行を生成しなかった場合は、誤って書き込んだ可能性があります）。

この場合、おそらくテーブルを変更する移行を実行しようとしていますが、そのテーブルを実際に作成する移行が実行されていないため、表示されるエラーにつながります。

Answer 2

これはあなたのデシベルを実行しているので、何が起こっている：テスト環境でタスクを移行して、工場出荷時のプラグインがまだ存在しないテーブルのモデルをロードしようとしている：

/ユーザ/ lprestonsegoiii /仕事/ GravityLabs/Tinderboxの/テスト/工場/ general.rb：87

あなたの開発デシベルであなたの移行を実行し、DBを使用する必要があります：テスト：テスト用データベースのクローンを作成するための準備：

rake db:migrate 
rake db:test:prepare 

Answer 3

このルックスあなたの工場の問題のように、あるいはおそらくfactory_girl/factory_girl_rails。

factory_girl_railsは、起動時にすべてのファクトリをロードします。アソシエーションや検証などが含まれていると、ActiveModel/ActiveRecordが呼び出されてモデルが検査されます。もちろん、このケースでは、検査するデータベースがないことがわかります。

私は同じ問題を抱えていた、その溶液/回避策は宝石「factory_girl_rails」を削除して、プレーンな「factory_girl」でそれを交換した後、spec_helperに手動で工場をロードすることです：

require 'factory_girl' 
FactoryGirl.find_definitions