Ruby Guard问题-'请安装sqlite3适配器'-railstutorial.org [英] Ruby Guard questions - 'Please install the sqlite3 adapter' - railstutorial.org

问题描述

我正在遵循 Ruby on Rails教程，并且在测试部分有些困惑，尤其是-3.6.2-使用Guard进行自动测试

I am following along the Ruby on Rails Tutorial and have gotten somewhat confused in the testing section, in particular - 3.6.2 - Automated tests with Guard

根据教程中有关将其部署到Heroku的说明，我已切换到Postgresql并从我的gemfile中删除了sqlite3，并进行了捆绑安装以进行更新。

As per the tutorial's instructions for deployment to Heroku, I've switched over to Postgresql and removed sqlite3 from my gemfile and did a bundle install to update.

但是，一旦我运行

捆绑执行卫兵

bundle exec guard

我收到消息：

/Users/username/.rvm/gems/ruby-1.9.3-p125@global/gems /bundler-1.1.3/lib/bundler/rubygems_integration.rb:147:in replace_gem中的块'：请安装sqlite3适配器： gem install activerecord-sqlite3-adapter` （sqlite3不属于捆绑软件。将其添加到Gemfile中。）（LoadError）

/Users/username/.rvm/gems/ruby-1.9.3-p125@global/gems/bundler-1.1.3/lib/bundler/rubygems_integration.rb:147:in block in replace_gem': Please install the sqlite3 adapter:gem install activerecord-sqlite3-adapter` (sqlite3 is not part of the bundle. Add it to Gemfile.) (LoadError)

我感到困惑，为什么我需要这样做，因为sqlite3已从我的环境中删除？

I'm confused why I need this as sqlite3 has been removed from my environment?

我的Gemfile如下：

My Gemfile is as follows:

source 'https://rubygems.org'

gem 'rails', '3.2.3'
gem 'pg', '0.12.2'

group :development, :test do
  gem 'rspec-rails', '2.9.0'
  gem 'guard-rspec', '0.5.5'
end

# Gems used only for assets and not required
# in production environments by default.
group :assets do
  gem 'sass-rails',   '3.2.4'
  gem 'coffee-rails', '3.2.2'
  gem 'uglifier', '1.2.3'
end

gem 'jquery-rails', '2.0.0'

group :test do
    gem 'rspec-rails', '2.9.0'
  gem 'capybara', '1.1.2'
  gem 'rb-fsevent', :require => false
  gem 'growl', '1.0.3'
  gem 'spork', '0.9.0'
end

我有点困惑，因为本教程中的Gemfile再次显示了sqlite3，即使在本教程的上一节中将其删除了。

I'm a bit confused because the Gemfile in the tutorial shows sqlite3 again even though it was removed in the previous section of the tutorial.

推荐答案

更新数据库配置文件以使用PostgreSQL适配器：

Update your database config file to use postgresql adapter:

adapter: postgresql
encoding: unicode
database:
username:
password:

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