我将开发数据库从SQLite切换到postgresql。我的应用程序在开发和生产（Heroku，postgresql）中都有效，但现在我无法在新的postgresql开发数据库中修改，删除或创建记录。用户只能正确登录，查看他们的个人资料信息和注销。
创建用户时出错：
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"
删除用户时出错：
ActiveRecord::StatementInvalid in Devise::RegistrationsController#destroy
Errno::EBADF: Bad file descriptor - rb_thread_select(): DELETE FROM "users" WHERE "users"."id" = $1
这一切在生产中都表现正确。
我在Windows 7上使用Cygwin并使用pgAdmin Windows软件包安装postgresql。
我使用以下方法创建了4个不同时间的新数据库，所有这些方法都产生了相同的结果。
在pgAdmin中创建了一个空数据库，并使用rake db:migrate正确创建了字段，但该应用无法创建记录。
在pgAdmin中创建了一个空数据库，然后使用db:schema:load，其结果与＃1相同。
在pgAdmin中创建了一个空数据库。使用pgbackups从我的生产应用程序创建.dump文件，然后使用pgrestore到新的空数据库中。所有看起来都很好，字段和记录但仍然无法修改，删除或创建。只能登录，并查看用户个人资料。
关注Railscast #342 Migrating to PostgreSQL使用所有步骤，包括Taps Gem，完全按照4:40开始的描述。所有看起来都很好，字段和记录，但行为与＃3相同。
我可以通过pgAdmin GUI或psql mydatabase命令行直接与数据库进行交互。
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日志显示与数据库的成功连接：
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
我的应用程序日志显示成功的用户登录，注销和查看配置文件的请求。它还显示用户如何通过单击确认电子邮件中的链接成功更改其密码。它还会显示用户尝试更改其个人资料，删除其帐户或新用户尝试注册时的错误。错误：
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)
Rendered /home/Pavilion/.rvm/gems/ruby-1.9.3-p374/gems/actionpack-3.2.11/lib/action_dispatch/middleware/templates/rescues/_request_and_response.erb (2.0ms)
Rendered /home/Pavilion/.rvm/gems/ruby-1.9.3-p374/gems/actionpack-3.2.11/lib/action_dispatch/middleware/templates/rescues/diagnostics.erb within rescues/layout (42.0ms)
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="}
[1m[35mUser Load (0.0ms)[0m SELECT "users".* FROM "users" WHERE "users"."id" = 57 LIMIT 1
[1m[36m (0.0ms)[0m [1mBEGIN[0m
[1m[35mSQL (1.0ms)[0m DELETE FROM "users" WHERE "users"."id" = $1 [["id", 57]]
Errno::EBADF: Bad file descriptor - rb_thread_select(): DELETE FROM "users" WHERE "users"."id" = $1
[1m[36m (0.0ms)[0m [1mROLLBACK[0m
Completed 500 Internal Server Error in 5ms
ActiveRecord::StatementInvalid (Errno::EBADF: Bad file descriptor - rb_thread_select(): DELETE FROM "users" WHERE "users"."id" = $1):
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/home/Pavilion/.rvm/rubies/ruby-1.9.3-p374/lib/ruby/1.9.1/webrick/httpserver.rb:138:in `service'
/home/Pavilion/.rvm/rubies/ruby-1.9.3-p374/lib/ruby/1.9.1/webrick/httpserver.rb:94:in `run'
/home/Pavilion/.rvm/rubies/ruby-1.9.3-p374/lib/ruby/1.9.1/webrick/server.rb:191:in `block in start_thread'
...
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"=>"me@example.com", "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" = 'me@example.com' LIMIT 1
[1m[36mUser Load (0.0ms)[0m [1mSELECT "users".* FROM "users" WHERE "users"."confirmation_token" = 'xxxxx' LIMIT 1[0m
[1m[35mSQL (1.0ms)[0m 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" [["confirmation_sent_at", Thu, 18 Apr 2013 19:15:23 UTC +00:00], ["confirmation_token", "xxxxx"], ["confirmed_at", nil], ["created_at", Thu, 18 Apr 2013 19:15:23 UTC +00:00], ["current_sign_in_at", nil], ["current_sign_in_ip", nil], ["description", nil], ["email", "me@example.com"], ["encrypted_password", "xxxxx"], ["first_name", nil], ["headline", nil], ["image", nil], ["industry", nil], ["last_name", nil], ["last_sign_in_at", nil], ["last_sign_in_ip", nil], ["location", nil], ["name", nil], ["nickname", nil], ["provider", nil], ["public_profile", nil], ["remember_created_at", nil], ["reset_password_sent_at", nil], ["reset_password_token", nil], ["sign_in_count", 0], ["uid", nil], ["unconfirmed_email", nil], ["updated_at", Thu, 18 Apr 2013 19:15:23 UTC +00:00]]
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="}
[1m[35mUser Load (1.0ms)[0m SELECT "users".* FROM "users" WHERE "users"."id" = 57 LIMIT 1
[1m[36m (3.0ms)[0m [1mBEGIN[0m
[1m[35mSQL (0.0ms)[0m DELETE FROM "users" WHERE "users"."id" = $1 [["id", 57]]
Errno::EBADF: Bad file descriptor - rb_thread_select(): DELETE FROM "users" WHERE "users"."id" = $1
[1m[36m (1.0ms)[0m [1mROLLBACK[0m
Completed 500 Internal Server Error in 7ms
ActiveRecord::StatementInvalid (Errno::EBADF: Bad file descriptor - rb_thread_select(): DELETE FROM "users" WHERE "users"."id" = $1):
为什么我无法从新创建的开发数据库中获得完整功能，而所有功能在生产中都能正常运行？我从研究中了解到，在开发和生产中使用相同的数据库非常重要。
我是新手，学习ruby，rails，数据库和postgresql。 stackoverflow非常有用。
答案 0 :(得分：1)
我可以通过pgAdmin GUI或psql＆gt;直接与数据库交互。 mydatabase命令行。
那么为什么要继续摆弄数据库呢？这不是导致你出现问题的部分。
此：
EBADF：错误的文件描述符
表示连接问题，或者甚至是数据库连接库本身的问题。
在PostgreSQL中打开连接日志记录。在您的应用程序中打开登录。确保在进一步查看之前可以连接。