Rails 3 - 如何完全避免使用数据库? [英] Rails 3 - how do I avoid database altogether?

问题描述

我正在尝试在没有任何数据库后端的情况下使用 rails 3，但是当我尝试访问页面时它仍然坚持要求使用 'sqlite3' gem，并抛出错误 no such file to load -- sqlite3，即使应用程序中没有任何代码需要 sqlite，但我将 database.yml 保留为 sqlite3 的默认设置，因为删除内容会引发其他错误.知道如何在没有任何数据库的情况下使用 rails 并避免上述错误吗?谢谢.

I'm trying to use rails 3 without any db backend, but it still insists on requiring 'sqlite3' gem when I try to access a page, and throws an error no such file to load -- sqlite3, even though no code in the application requires sqlite, except I left database.yml with its default setting for sqlite3, since removing the content raised other errors. Any idea how I could use rails without any database and avoid said errors? thanks.

(另外，我对 Sinatra 很熟悉——只是更喜欢这个项目的 rails).

(also, I'm familiar with Sinatra - just prefer rails for this project).

推荐答案

Rails 3:

在 application.rb 中，删除 require 'rails/all' 行并添加以下行:

In application.rb, remove the require 'rails/all' line and instead add these lines:

require "action_controller/railtie"
require "action_mailer/railtie"
require "active_resource/railtie"
require "rails/test_unit/railtie"
require "sprockets/railtie"

另请参阅在 Rails 3 中删除 ActiveRecord并查看 Active Model railscast

Also see Remove ActiveRecord in Rails 3 and look into the Active Model railscast

Rails 3.2.x:

Rails 3.2.x:

您还需要在 application.rb 中删除/注释掉这一行

You'll also need to remove/comment out this line in application.rb

config.active_record.whitelist_attributes = true

并从 development.rb 中删除/注释这两行

And remove/comment these two lines from development.rb

config.active_record.mass_assignment_sanitizer = :strict
config.active_record.auto_explain_threshold_in_seconds = 0.5

Rails 2.x:

在 config/environment.rb 中添加(或取消注释)该行

In config/environment.rb add (or uncomment) the line

config.frameworks -= [ :active_record, :active_resource, :action_mailer ]

这将导致 Rails 不使用这些框架.(注意几乎不可见的 -= ！)

This will cause Rails not to use those frameworks. (Note the nearly-invisible -= !)

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