1

嗨，我遇到了和这个人一样的问题：Ruby Guard questions - 'Please install the sqlite3 adapter' - railstutorial.org

执行“bundle exec rspec spec/requests/static_pages_spec.rb”给了我这个：

C:\Users\Me\Ruby\sample_app>bundle exec rspec spec/requests/static_pages_spec
.rb
Rack::File headers parameter replaces cache_control after Rack 1.5.
C:/Ruby193/lib/ruby/gems/1.9.1/gems/bundler-1.2.3/lib/bundler/rubygems_integrati
on.rb:147:in `block in replace_gem': Please install the sqlite3 adapter: `gem in
stall activerecord-sqlite3-adapter` (sqlite3 is not part of the bundle. Add it t
o Gemfile.) (LoadError)
        from C:/Ruby193/lib/ruby/gems/1.9.1/gems/activerecord-3.2.11/lib/active_
record/connection_adapters/sqlite3_adapter.rb:3:in `<top (required)>'
        from C:/Ruby193/lib/ruby/gems/1.9.1/gems/activesupport-3.2.11/lib/active
_support/dependencies.rb:251:in `require'
        from C:/Ruby193/lib/ruby/gems/1.9.1/gems/activesupport-3.2.11/lib/active
_support/dependencies.rb:251:in `block in require'
        from C:/Ruby193/lib/ruby/gems/1.9.1/gems/activesupport-3.2.11/lib/active
_support/dependencies.rb:236:in `load_dependency'
        from C:/Ruby193/lib/ruby/gems/1.9.1/gems/activesupport-3.2.11/lib/active
_support/dependencies.rb:251:in `require'
        from C:/Ruby193/lib/ruby/gems/1.9.1/gems/activerecord-3.2.11/lib/active_
record/connection_adapters/abstract/connection_specification.rb:50:in `resolve_h
ash_connection'
        from C:/Ruby193/lib/ruby/gems/1.9.1/gems/activerecord-3.2.11/lib/active_
record/connection_adapters/abstract/connection_specification.rb:41:in `resolve_s
tring_connection'
        from C:/Ruby193/lib/ruby/gems/1.9.1/gems/activerecord-3.2.11/lib/active_
record/connection_adapters/abstract/connection_specification.rb:25:in `spec'
        from C:/Ruby193/lib/ruby/gems/1.9.1/gems/activerecord-3.2.11/lib/active_
record/connection_adapters/abstract/connection_specification.rb:130:in `establis
h_connection'
        from C:/Ruby193/lib/ruby/gems/1.9.1/gems/activerecord-3.2.11/lib/active_
record/railtie.rb:82:in `block (2 levels) in <class:Railtie>'
        from C:/Ruby193/lib/ruby/gems/1.9.1/gems/activesupport-3.2.11/lib/active
_support/lazy_load_hooks.rb:36:in `instance_eval'
        from C:/Ruby193/lib/ruby/gems/1.9.1/gems/activesupport-3.2.11/lib/active
_support/lazy_load_hooks.rb:36:in `execute_hook'
        from C:/Ruby193/lib/ruby/gems/1.9.1/gems/activesupport-3.2.11/lib/active
_support/lazy_load_hooks.rb:43:in `block in run_load_hooks'
        from C:/Ruby193/lib/ruby/gems/1.9.1/gems/activesupport-3.2.11/lib/active
_support/lazy_load_hooks.rb:42:in `each'
        from C:/Ruby193/lib/ruby/gems/1.9.1/gems/activesupport-3.2.11/lib/active
_support/lazy_load_hooks.rb:42:in `run_load_hooks'
        from C:/Ruby193/lib/ruby/gems/1.9.1/gems/activerecord-3.2.11/lib/active_
record/base.rb:720:in `<top (required)>'
        from C:/Ruby193/lib/ruby/gems/1.9.1/gems/rspec-rails-2.11.0/lib/rspec/ra
ils/extensions/active_record/base.rb:19:in `<module:Extensions>'
        from C:/Ruby193/lib/ruby/gems/1.9.1/gems/rspec-rails-2.11.0/lib/rspec/ra
ils/extensions/active_record/base.rb:4:in `<module:Rails>'
        from C:/Ruby193/lib/ruby/gems/1.9.1/gems/rspec-rails-2.11.0/lib/rspec/ra
ils/extensions/active_record/base.rb:2:in `<module:RSpec>'
        from C:/Ruby193/lib/ruby/gems/1.9.1/gems/rspec-rails-2.11.0/lib/rspec/ra
ils/extensions/active_record/base.rb:1:in `<top (required)>'
        from C:/Ruby193/lib/ruby/gems/1.9.1/gems/activesupport-3.2.11/lib/active
_support/dependencies.rb:251:in `require'
        from C:/Ruby193/lib/ruby/gems/1.9.1/gems/activesupport-3.2.11/lib/active
_support/dependencies.rb:251:in `block in require'
        from C:/Ruby193/lib/ruby/gems/1.9.1/gems/activesupport-3.2.11/lib/active
_support/dependencies.rb:236:in `load_dependency'
        from C:/Ruby193/lib/ruby/gems/1.9.1/gems/activesupport-3.2.11/lib/active
_support/dependencies.rb:251:in `require'
        from C:/Ruby193/lib/ruby/gems/1.9.1/gems/rspec-rails-2.11.0/lib/rspec/ra
ils/extensions.rb:1:in `<top (required)>'
        from C:/Ruby193/lib/ruby/gems/1.9.1/gems/activesupport-3.2.11/lib/active
_support/dependencies.rb:251:in `require'
        from C:/Ruby193/lib/ruby/gems/1.9.1/gems/activesupport-3.2.11/lib/active
_support/dependencies.rb:251:in `block in require'
        from C:/Ruby193/lib/ruby/gems/1.9.1/gems/activesupport-3.2.11/lib/active
_support/dependencies.rb:236:in `load_dependency'
        from C:/Ruby193/lib/ruby/gems/1.9.1/gems/activesupport-3.2.11/lib/active
_support/dependencies.rb:251:in `require'
        from C:/Ruby193/lib/ruby/gems/1.9.1/gems/rspec-rails-2.11.0/lib/rspec/ra
ils.rb:8:in `<top (required)>'
        from C:/Ruby193/lib/ruby/gems/1.9.1/gems/activesupport-3.2.11/lib/active
_support/dependencies.rb:251:in `require'
        from C:/Ruby193/lib/ruby/gems/1.9.1/gems/activesupport-3.2.11/lib/active
_support/dependencies.rb:251:in `block in require'
        from C:/Ruby193/lib/ruby/gems/1.9.1/gems/activesupport-3.2.11/lib/active
_support/dependencies.rb:236:in `load_dependency'
        from C:/Ruby193/lib/ruby/gems/1.9.1/gems/activesupport-3.2.11/lib/active
_support/dependencies.rb:251:in `require'
        from C:/Users/Ayhan/Ruby/sample_app/spec/spec_helper.rb:4:in `<top (requ
ired)>'
        from C:/Users/Ayhan/Ruby/sample_app/spec/requests/static_pages_spec.rb:1
:in `require'
        from C:/Users/Ayhan/Ruby/sample_app/spec/requests/static_pages_spec.rb:1
:in `<top (required)>'
        from C:/Ruby193/lib/ruby/gems/1.9.1/gems/rspec-core-2.11.1/lib/rspec/cor
e/configuration.rb:780:in `load'
        from C:/Ruby193/lib/ruby/gems/1.9.1/gems/rspec-core-2.11.1/lib/rspec/cor
e/configuration.rb:780:in `block in load_spec_files'
        from C:/Ruby193/lib/ruby/gems/1.9.1/gems/rspec-core-2.11.1/lib/rspec/cor
e/configuration.rb:780:in `map'
        from C:/Ruby193/lib/ruby/gems/1.9.1/gems/rspec-core-2.11.1/lib/rspec/cor
e/configuration.rb:780:in `load_spec_files'
        from C:/Ruby193/lib/ruby/gems/1.9.1/gems/rspec-core-2.11.1/lib/rspec/cor
e/command_line.rb:22:in `run'
        from C:/Ruby193/lib/ruby/gems/1.9.1/gems/rspec-core-2.11.1/lib/rspec/cor
e/runner.rb:69:in `run'
        from C:/Ruby193/lib/ruby/gems/1.9.1/gems/rspec-core-2.11.1/lib/rspec/cor
e/runner.rb:8:in `block in autorun'

但我的 database.yml 看起来像这样：

# SQLite version 3.x
#   gem install sqlite3
#
#   Ensure the SQLite 3 gem is defined in your Gemfile
#   gem 'sqlite3'
development:
  adapter: postgresql
  host: localhost
  username: user
  database: app-dev

# Warning: The database defined as "test" will be erased and
# re-generated from your development database when you run "rake".
# Do not set this db to the same as development or production.
test:
  adapter: sqlite3
  database: db/test.sqlite3
  pool: 5
  timeout: 5000

production:
  adapter: sqlite3
  database: db/production.sqlite3
  pool: 5
  timeout: 5000

我必须在这里改变什么？或者还有其他我看不到的问题？

PS：我安装了postgreSQL，所以我改变了database.yml中的开发通道。gemfile 看起来像这样：

source 'https://rubygems.org'

gem 'rails', '3.2.11'
gem 'pg', '0.12.2'

# Bundle edge Rails instead:
# gem 'rails', :git => 'git://github.com/rails/rails.git'

group :development, :test do
  gem 'rspec-rails', '2.11.0'
end

# Gems used only for assets and not required
# in production environments by default.
group :assets do
  gem 'sass-rails',   '~> 3.2.5'
  gem 'coffee-rails', '~> 3.2.2'
  gem 'uglifier', '>= 1.2.3'
end

gem 'jquery-rails'

group :test do
  gem 'capybara', '1.1.2'
end

# To use ActiveModel has_secure_password
# gem 'bcrypt-ruby', '~> 3.0.0'

# To use Jbuilder templates for JSON
# gem 'jbuilder'

# Use unicorn as the app server
# gem 'unicorn'

# Deploy with Capistrano
# gem 'capistrano'

# To use debugger
# gem 'debugger'
4

1 回答 1

1

使用 中的当前配置config/database.yml，开发环境postgres在test&production使用时处于开启状态sqlite3。并且没有sqlite3包含在Gemfile. 因此有关Please install the sqlite3 adapter.

为什么不postgres用于所有环境而不是仅用于development？

分别使用适当的数据库名称 - & database: app-prod`制作test与inproduction类似的部分。developmentconfig/database.ymldatabase: app-test

或者，如果您想sqlite3用于某些环境，请sqlite3仅包含该环境的 gem，并pg包含其他环境的 gem。

示例 Gemfile 配置：

下面的配置将包括pggem only forproduction和sqlite3gem only for development& testenvironment。

group :production do
  gem 'pg', '0.11.0'
end

group :development, :test do
  gem 'sqlite3-ruby', :require => 'sqlite3'
end
于 2013-02-10T16:27:20.267 回答