1
我將我的開發數據庫從SQLite切換到postgresql。我的應用程序可以在開發和生產（Heroku，postgresql）中工作，但現在我無法在新的postgresql開發數據庫中修改，刪除或創建記錄。用戶只能正確登錄，查看他們的個人資料信息和登出。上創建用戶爲什麼我的應用程序在從SQLite遷移後無法修改開發postgresql數據庫？
錯誤：
ActiveRecord::StatementInvalid in Devise::RegistrationsController#create
Errno::EBADF: Bad file descriptor - rb_thread_select(): INSERT INTO "users" ("field1", "field2", "field3", ...etc continues through..., "Field28") VALUES ($1, $2, $3, $4, $5, $6, $7, $8, $9, $10, $11, $12, $13, $14, $15, $16, $17, $18, $19, $20, $21, $22, $23, $24, $25, $26, $27, $28) RETURNING "id"
錯誤的刪除用戶：
ActiveRecord::StatementInvalid in Devise::RegistrationsController#destroy
Errno::EBADF: Bad file descriptor - rb_thread_select(): DELETE FROM "users" WHERE "users"."id" = $1
這一切都在產生正確的行爲。
我在Windows 7上使用Cygwin並使用pgAdmin Windows軟件包來安裝postgresql。
我使用以下方法創建了4個不同時間的新數據庫，所有這些方法都產生了上述相同的結果。
在pgAdmin的創建一個空的數據庫，並使用
rake db:migrate產生的場正確，但程序是無法創建記錄。在pgAdmin中創建一個空數據庫，然後使用
db:schema:load，結果與＃1相同。在pgAdmin中創建一個空的數據庫。使用
pgbackups從我的製作應用中創建.dump文件，然後將pgrestore用於新的空數據庫。所有看起來不錯，字段和記錄，但仍然無法修改，刪除或創建。只能登錄，並查看用戶配置文件。跟隨Railscast #342 Migrating to PostgreSQL使用所有的步驟，包括龍頭寶石，正如在4:40開始描述的那樣。再次，所有看起來不錯，領域和記錄，但行爲與＃3相同。
我可以通過pgAdmin GUI或psql mydatabase命令行直接與數據庫進行交互。
的database.yml
development:
adapter: postgresql
encoding: unicode
database: devdatabase
pool: 5
username: postgres
password: 'password'
test:
adapter: postgresql
encoding: unicode
database: testdatabase
pool: 5
username: postgress
password: 'password'
我的PostgreSQL的日誌顯示到數據庫的成功連接：
2013-04-18 15:12:09 EDT LOG: database system was shut down at 2013-04-18 15:03:00 EDT
2013-04-18 15:12:09 EDT LOG: database system is ready to accept connections
2013-04-18 15:12:09 EDT LOG: autovacuum launcher started
2013-04-18 15:12:10 EDT LOG: connection received: host=::1 port=58635
2013-04-18 15:13:14 EDT LOG: connection received: host=::1 port=58637
2013-04-18 15:13:14 EDT LOG: connection authorized: user=postgres database=brdevelopment
2013-04-18 15:13:25 EDT LOG: connection received: host=::1 port=58653
2013-04-18 15:13:25 EDT LOG: connection authorized: user=postgres database=brdevelopment
2013-04-18 15:18:32 EDT LOG: received fast shutdown request
2013-04-18 15:18:32 EDT LOG: aborting any active transactions
2013-04-18 15:18:32 EDT LOG: autovacuum launcher shutting down
2013-04-18 15:18:32 EDT LOG: shutting down
2013-04-18 15:18:32 EDT LOG: database system is shut down
我的應用程序日誌顯示了成功的用戶signins，signouts並請求查看配置文件。它還顯示用戶如何通過點擊確認電子郵件中的鏈接成功更改密碼。它還會顯示用戶嘗試更改個人資料，刪除其帳戶或新用戶嘗試註冊時的錯誤。錯誤：
Rendered /home/Pavilion/.rvm/gems/ruby-1.9.3-p374/gems/actionpack-3.2.11/lib/action_dispatch/middleware/templates/rescues/_trace.erb (1.0ms)
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Connecting to database specified by database.yml
Connecting to database specified by database.yml
...
Started DELETE "/users" for 127.0.0.1 at 2013-04-18 15:14:20 -0400
Processing by Devise::RegistrationsController#destroy as HTML
Parameters: {"authenticity_token"=>"xxxxx="}
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Errno::EBADF: Bad file descriptor - rb_thread_select(): DELETE FROM "users" WHERE "users"."id" = $1
[1m[36m (0.0ms)[0m [1mROLLBACK[0m
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ActiveRecord::StatementInvalid (Errno::EBADF: Bad file descriptor - rb_thread_select(): DELETE FROM "users" WHERE "users"."id" = $1):
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...
Started POST "/users" for 127.0.0.1 at 2013-04-18 15:15:23 -0400
Processing by Devise::RegistrationsController#create as HTML
Parameters: {"utf8"=>"✓", "authenticity_token"=>"xxxxx=", "user"=>{"email"=>"[email protected]", "password"=>"[FILTERED]", "password_confirmation"=>"[FILTERED]"}, "commit"=>"Sign up"}
[1m[36m (1.0ms)[0m [1mBEGIN[0m
[1m[35mUser Exists (0.0ms)[0m SELECT 1 AS one FROM "users" WHERE "users"."email" = '[email protected]' LIMIT 1
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Errno::EBADF: Bad file descriptor - rb_thread_select(): INSERT INTO "users" ("confirmation_sent_at", "confirmation_token", "confirmed_at", "created_at", "current_sign_in_at", "current_sign_in_ip", "description", "email", "encrypted_password", "first_name", "headline", "image", "industry", "last_name", "last_sign_in_at", "last_sign_in_ip", "location", "name", "nickname", "provider", "public_profile", "remember_created_at", "reset_password_sent_at", "reset_password_token", "sign_in_count", "uid", "unconfirmed_email", "updated_at") VALUES ($1, $2, $3, $4, $5, $6, $7, $8, $9, $10, $11, $12, $13, $14, $15, $16, $17, $18, $19, $20, $21, $22, $23, $24, $25, $26, $27, $28) RETURNING "id"
[1m[36m (1.0ms)[0m [1mROLLBACK[0m
Completed 500 Internal Server Error in 469ms
ActiveRecord::StatementInvalid (Errno::EBADF: Bad file descriptor - rb_thread_select(): INSERT INTO "users" ("confirmation_sent_at", "confirmation_token", "confirmed_at", "created_at", "current_sign_in_at", "current_sign_in_ip", "description", "email", "encrypted_password", "first_name", "headline", "image", "industry", "last_name", "last_sign_in_at", "last_sign_in_ip", "location", "name", "nickname", "provider", "public_profile", "remember_created_at", "reset_password_sent_at", "reset_password_token", "sign_in_count", "uid", "unconfirmed_email", "updated_at") VALUES ($1, $2, $3, $4, $5, $6, $7, $8, $9, $10, $11, $12, $13, $14, $15, $16, $17, $18, $19, $20, $21, $22, $23, $24, $25, $26, $27, $28) RETURNING "id"):
...
Started DELETE "/users" for 127.0.0.1 at 2013-04-18 15:17:25 -0400
Processing by Devise::RegistrationsController#destroy as HTML
Parameters: {"authenticity_token"=>"xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx="}
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Errno::EBADF: Bad file descriptor - rb_thread_select(): DELETE FROM "users" WHERE "users"."id" = $1
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Completed 500 Internal Server Error in 7ms
ActiveRecord::StatementInvalid (Errno::EBADF: Bad file descriptor - rb_thread_select(): DELETE FROM "users" WHERE "users"."id" = $1):
爲什麼我不能從我新創建的開發數據庫中獲得全部功能，同時所有工作都正常工作？我從我的研究中瞭解到，在開發和生產中使用相同的數據庫非常重要。
我是新來的，學習ruby，rails，數據庫和postgresql。 stackoverflow一直非常有幫助。
你的'database.yml'中沒有'host'？ ActiveRecord :: Base.connection.execute（'select count（*）from users'）'必須從Rails控制檯說出什麼？ –
我在'database.yml'中有'host：localhost：5432'，但Rails Server無法解析並且無法啓動。 Rails控制檯返回'（1.0ms）select count（*）from users =>＃'我可以通過'User.find_by_email（「user @ example .com「）' –