连接到多个 Rails DB、SQLite3 和 SQLServer 2008答案

【问题标题】：Connecting to multiple Rails DBs, SQLite3 and SQLServer 2008连接到多个 Rails DB、SQLite3 和 SQLServer 2008
【发布时间】：2012-03-09 07:40:36
【问题描述】：

我正在尝试使用此 gem 连接到名为 Demand 的 SQL 服务器： https://github.com/rails-sqlserver/I'm

我正在遵循“Rails 食谱”一书中的食谱 #3 http://pragprog.com/book/rr2/rails-recipes

这是我的 database.yml 文件：

demand:
  adapter: sqlserver
  host: 172.21.148.01
  port: 1433
  database: Demand
  username: DEapp
  password: @pp1user
  timeout: 5000

从 rails 控制台，当我测试与 Demand.connection 的连接时，我得到以下信息：（我知道 addy 和 pw 很好，因为我目前通过 toad 连接，还创建了模型“Demand”，因此 rails 会有一个对象）

> TinyTds::Error: Login failed for user ‘DEapp’. from
> /Users/drewgilliam/.rvm/gems/ruby-1.9.2-p290/gems/tiny_tds-0.5.1/lib/tiny_tds/client.rb:68:in
> `connect’ from
> /Users/drewgilliam/.rvm/gems/ruby-1.9.2-p290/gems/tiny_tds-0.5.1/lib/tiny_tds/client.rb:68:in
> `initialize’ from
> /Users/drewgilliam/.rvm/gems/ruby-1.9.2-p290/gems/activerecord-sqlserver-adapter-3.1.6/lib/active_record/connection_adapters/sqlserver_adapter.rb:400:in
> `new’ from
> /Users/drewgilliam/.rvm/gems/ruby-1.9.2-p290/gems/activerecord-sqlserver-adapter-3.1.6/lib/active_record/connection_adapters/sqlserver_adapter.rb:400:in
> `connect’ from
> /Users/drewgilliam/.rvm/gems/ruby-1.9.2-p290/gems/activerecord-sqlserver-adapter-3.1.6/lib/active_record/connection_adapters/sqlserver_adapter.rb:198:in
> `initialize’ from
> /Users/drewgilliam/.rvm/gems/ruby-1.9.2-p290/gems/activerecord-sqlserver-adapter-3.1.6/lib/active_record/connection_adapters/sqlserver_adapter.rb:35:in `new’ from
> /Users/drewgilliam/.rvm/gems/ruby-1.9.2-p290/gems/activerecord-sqlserver-adapter-3.1.6/lib/active_record/connection_adapters/sqlserver_adapter.rb:35:in `sqlserver_connection’ from
> /Users/drewgilliam/.rvm/gems/ruby-1.9.2-p290/gems/activerecord-3.1.3/lib/active_record/connection_adapters/abstract/connection_pool.rb:304:in
> `new_connection’ from
> /Users/drewgilliam/.rvm/gems/ruby-1.9.2-p290/gems/activerecord-3.1.3/lib/active_record/connection_adapters/abstract/connection_pool.rb:323:in
> `checkout_new_connection’ from
> /Users/drewgilliam/.rvm/gems/ruby-1.9.2-p290/gems/activerecord-3.1.3/lib/active_record/connection_adapters/abstract/connection_pool.rb:265:in
> `block (2 levels) in checkout’ from
> /Users/drewgilliam/.rvm/gems/ruby-1.9.2-p290/gems/activerecord-3.1.3/lib/active_record/connection_adapters/abstract/connection_pool.rb:261:in
> `loop’ from
> /Users/drewgilliam/.rvm/gems/ruby-1.9.2-p290/gems/activerecord-3.1.3/lib/active_record/connection_adapters/abstract/connection_pool.rb:261:in
> `block in checkout’ from
> /Users/drewgilliam/.rvm/rubies/ruby-1.9.2-p290/lib/ruby/1.9.1/monitor.rb:201:in
> `mon_synchronize’ from
> /Users/drewgilliam/.rvm/gems/ruby-1.9.2-p290/gems/activerecord-3.1.3/lib/active_record/connection_adapters/abstract/connection_pool.rb:260:in
> `checkout’ from
> /Users/drewgilliam/.rvm/gems/ruby-1.9.2-p290/gems/activerecord-3.1.3/lib/active_record/connection_adapters/abstract/connection_pool.rb:162:in
> `connection’ from
> /Users/drewgilliam/.rvm/gems/ruby-1.9.2-p290/gems/activerecord-3.1.3/lib/active_record/connection_adapters/abstract/connection_pool.rb:409:in
> `retrieve_connection’ from
> /Users/drewgilliam/.rvm/gems/ruby-1.9.2-p290/gems/activerecord-3.1.3/lib/active_record/connection_adapters/abstract/connection_specification.rb:115:in
> `retrieve_connection’ from
> /Users/drewgilliam/.rvm/gems/ruby-1.9.2-p290/gems/activerecord-3.1.3/lib/active_record/connection_adapters/abstract/connection_specification.rb:89:in `connection’ from (irb):11 from
> /Users/drewgilliam/.rvm/gems/ruby-1.9.2-p290/gems/railties-3.1.3/lib/rails/commands/console.rb:45:in
> `start’ from
> /Users/drewgilliam/.rvm/gems/ruby-1.9.2-p290/gems/railties-3.1.3/lib/rails/commands/console.rb:8:in
> `start’ from
> /Users/drewgilliam/.rvm/gems/ruby-1.9.2-p290/gems/railties-3.1.3/lib/rails/commands.rb:40:in
> `‘ from script/rails:6:in `require’

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【问题讨论】：

一定要使用混合模式（使用服务器ip地址）认证吗？还是您可以选择使用 Windows 身份验证？
不能使用windows auth，是远程机器，其实我觉得是linux box，虚拟windows。你认为这是登录的问题吗？

标签： ruby-on-rails-3 sql-server-2008 activerecord sqlite

【解决方案1】：

我发现因为外部 DB 用户密码以 @ 符号开头，rails 对此并不满意，因为它认为它是实例变量。

我将 PW 更改为不以 @ 开头的东西，它连接得很好。

    Drews-MacBook-Air:DE_App drewgilliam$ rails console
Loading development environment (Rails 3.1.3)
1.9.2p290 :001 > Externaldb.connection
  EXECUTE (36.7ms)  USE [DemandEstimator]
 => #<ActiveRecord::ConnectionAdapters::SQLServerAdapter version: 3.1.6, year: 2008, product_level: "SP1", product_version: "10.50.2500.0", edition: "Enterprise Edition (64-bit)", connection_options: {:adapter=>"sqlserver", :host=>"172.21.148.01", :port=>1433, :database=>"DemandEstimator", :username=>"DEapp", :password=>"demand_app_user", :timeout=>5000, :mode=>:dblib}> 
1.9.2p290 :002 >

【讨论】：