blocks|key|1351521|text|在environment.rb文件中取消对该行的注释：|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|1351522|config.frameworks+-=+[+:active_record,+:active_resource,+:action_mailer]|code-block|syntax|javascript|1351523|entityMap^0|1|E|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@$9|N|A|O|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|P|8|@]|D|@]|E|$I|J]]|$1|K|3|-4|5|6|7|Q|8|@]|D|@]|E|$]]]|L|$]]

Uncomment this line in the <code>environment.rb</code> file:

<pre><code>config.frameworks -= [ :active_record, :active_resource, :action_mailer]
</code></pre>

blocks|key|1567094|text|如果您不需要数据库，那么您可能不需要大量的Rails。您可能需要一个更小、更可定制的框架来使用。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1567095|Sinatra是一个很小的框架，非常适合提供基本的静态页面。|offset|length|1567096|但是，如果您坚持使用Rails，here是一篇向您展示如何做到这一点或here的文章。|1567097|entityMap|0|LINK|mutability|MUTABLE|url|http://www.sinatrarb.com/|1|http://media.pragprog.com/titles/fr_rr/NoDatabase.pdf|2|http://log4p.com/2007/12/04/using-rails-without-a-database/^0|0|0|7|0|0|G|4|1|Z|4|2|0^^$0|@$1|2|3|4|5|6|7|T|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|U|8|@]|9|@$D|V|E|W|1|X]]|A|$]]|$1|F|3|G|5|6|7|Y|8|@]|9|@$D|Z|E|10|1|11]|$D|12|E|13|1|14]]|A|$]]|$1|H|3|-4|5|6|7|15|8|@]|9|@]|A|$]]]|I|$J|$5|K|L|M|A|$N|O]]|P|$5|K|L|M|A|$N|Q]]|R|$5|K|L|M|A|$N|S]]]]

If you don't need a database then you probably don't need to have the bulk of Rails. You may want a smaller more customizable framework to work with. 

<a href="http://www.sinatrarb.com/" rel="noreferrer">Sinatra</a> is a tiny framework that is great for serving up basic static pages.

But if you insist on using Rails <a href="http://media.pragprog.com/titles/fr_rr/NoDatabase.pdf" rel="noreferrer">here</a> is an article that will show you how to do just that or <a href="http://log4p.com/2007/12/04/using-rails-without-a-database/" rel="noreferrer">here</a>.

blocks|key|1351647|text|在Rails4中，当开始一个新项目时，您可以使用-O或-O-active-record|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1351648|rails+new+my_project+-O
rails+new+my_project+--skip-active-record|code-block|syntax|javascript|1351649|如果您已经创建了一个项目，则需要添加注释|1351650|+require+"active_record/railtie"|1351651|来自config/application.rb和|1351652|+config.active_record.migration_error+=+:page_load|1351653|来自config/environment/development.rb|1351654|entityMap^0|0|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|S|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|T|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|U|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|V|8|@]|9|@]|A|$E|F]]|$1|K|3|L|5|6|7|W|8|@]|9|@]|A|$]]|$1|M|3|N|5|D|7|X|8|@]|9|@]|A|$E|F]]|$1|O|3|P|5|6|7|Y|8|@]|9|@]|A|$]]|$1|Q|3|-4|5|6|7|Z|8|@]|9|@]|A|$]]]|R|$]]

In Rails 4 when starting a new project you can use -O or --skip-active-record

<pre><code>rails new my_project -O
rails new my_project --skip-active-record
</code></pre>

If you've already created a project you will need to comment

<pre><code> require "active_record/railtie"
</code></pre>

from config/application.rb and 

<pre><code> config.active_record.migration_error = :page_load
</code></pre>

from config/environments/development.rb

blocks|key|1567154|text|对于现有的Rails+4/5/6项目，在config/application.rb文件中包含以下行：|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|1567155|require+'rails/all'+#+or+`require+"rails"'+in+newer+versions|code-block|syntax|javascript|1567156|(作为参考，该行正在加载this+file)|1567157|因此，您必须分别加载每个库，而不是全部加载，如下所示：|1567158|#+active_record+is+what+we're+not+going+to+use+it,+so+comment+it+"just+in+case"
#+require+"active_record/railtie"+

#+This+is+not+loaded+in+rails/all+but+inside+active_record+so+add+it+if
#+you+want+your+models+work+as+expected
require+"active_model/railtie"+
#+And+now+the+rest
require+"action_controller/railtie"
require+"action_mailer/railtie"
require+"action_view/railtie"
require+"active_job/railtie"+#+Only+for+Rails+>=+4.2
require+"action_cable/engine"+#+Only+for+Rails+>=+5.0
require+"sprockets/railtie"
require+"rails/test_unit/railtie"

#+All+these+depend+on+active_record,+so+they+should+be+excluded+also
#+require+"action_text/engine"+#+Only+for+Rails+>=+6.0
#+require+"action_mailbox/engine"+#+Only+for+Rails+>=+6.0
#+require+"active_storage/engine"+#+Only+for+Rails+>=+5.2|1567159|请关注评论，了解有关您的Rails版本的加载内容。|1567160|还要检查以下文件(如果有)，并注释以下行：|1567161|#+package.json
"@rails/activestorage":+"%5E6.0.0",

#+app/javascript/packs/application.js
require("@rails/activestorage").start()

#+bin/setup
system!+'bin/rails+db:prepare'

#+config/environments/development.rb
config.active_storage.service+=+:local+#+For+Rails+>=+5.2
config.active_record.migration_error+=+:page_load
config.active_record.verbose_query_logs+=+true

#+config/environments/test.rb
config.active_storage.service+=+:test+#+For+Rails+>=+5.2

#+config/environments/production.rb
config.active_storage.service+=+:local+#+For+Rails+>=+5.2
config.active_record.dump_schema_after_migration+=+false

#+spec/rails_helper.rb
ActiveRecord::Migration.maintain_test_schema!

#+test/test_helper.rb
fixtures+:all+#+In+case+you're+using+fixtures

#+Only+for+Rails+>=+5.0
#config/initializers/new_framework_defaults.rb
Rails.application.config.active_record.belongs_to_required_by_default+=+true|1567162|还要删除模型文件中对ActiveRecord::Base的任何引用(如果适用，则直接删除文件)。例如，自动生成的app/models/application_record.rb文件。|1567163|entityMap|0|LINK|mutability|MUTABLE|url|https://github.com/rails/rails/blob/master/railties/lib/rails/all.rb^0|K|L|0|0|C|9|0|0|0|0|0|0|0|A|I|1K|W|0^^$0|@$1|2|3|4|5|6|7|16|8|@$9|17|A|18|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|19|8|@]|D|@]|E|$I|J]]|$1|K|3|L|5|6|7|1A|8|@]|D|@$9|1B|A|1C|1|1D]]|E|$]]|$1|M|3|N|5|6|7|1E|8|@]|D|@]|E|$]]|$1|O|3|P|5|H|7|1F|8|@]|D|@]|E|$I|J]]|$1|Q|3|R|5|6|7|1G|8|@]|D|@]|E|$]]|$1|S|3|T|5|6|7|1H|8|@]|D|@]|E|$]]|$1|U|3|V|5|H|7|1I|8|@]|D|@]|E|$I|J]]|$1|W|3|X|5|6|7|1J|8|@$9|1K|A|1L|B|C]|$9|1M|A|1N|B|C]]|D|@]|E|$]]|$1|Y|3|-4|5|6|7|1O|8|@]|D|@]|E|$]]]|Z|$10|$5|11|12|13|E|$14|15]]]]

For an existing Rails 4/5/6 project, in your <code>config/application.rb</code> file you have the following line:

<pre><code>require 'rails/all' # or `require "rails"' in newer versions
</code></pre>

(As reference that line is loading <a href="https://github.com/rails/rails/blob/master/railties/lib/rails/all.rb" rel="noreferrer">this file</a>) 
So instead of load ALL, you must to load each library separately as follows:

<pre><code># active_record is what we're not going to use it, so comment it "just in case"
# require "active_record/railtie" 

# This is not loaded in rails/all but inside active_record so add it if
# you want your models work as expected
require "active_model/railtie" 
# And now the rest
require "action_controller/railtie"
require "action_mailer/railtie"
require "action_view/railtie"
require "active_job/railtie" # Only for Rails &gt;= 4.2
require "action_cable/engine" # Only for Rails &gt;= 5.0
require "sprockets/railtie"
require "rails/test_unit/railtie"

# All these depend on active_record, so they should be excluded also
# require "action_text/engine" # Only for Rails &gt;= 6.0
# require "action_mailbox/engine" # Only for Rails &gt;= 6.0
# require "active_storage/engine" # Only for Rails &gt;= 5.2
</code></pre>

Keep an eye to the comments to know what to load regarding your Rails version. 
Also check the following files (in case you have them) and comment the following lines:

<pre><code># package.json
"@rails/activestorage": "^6.0.0",

# app/javascript/packs/application.js
require("@rails/activestorage").start()

# bin/setup
system! 'bin/rails db:prepare'

# config/environments/development.rb
config.active_storage.service = :local # For Rails &gt;= 5.2
config.active_record.migration_error = :page_load
config.active_record.verbose_query_logs = true

# config/environments/test.rb
config.active_storage.service = :test # For Rails &gt;= 5.2

# config/environments/production.rb
config.active_storage.service = :local # For Rails &gt;= 5.2
config.active_record.dump_schema_after_migration = false

# spec/rails_helper.rb
ActiveRecord::Migration.maintain_test_schema!

# test/test_helper.rb
fixtures :all # In case you're using fixtures

# Only for Rails &gt;= 5.0
#config/initializers/new_framework_defaults.rb
Rails.application.config.active_record.belongs_to_required_by_default = true
</code></pre>

Also remove any reference to <code>ActiveRecord::Base</code> in your model files (or simply delete the files if apply). For example, the autogenerated <code>app/models/application_record.rb</code> file.

It would be convenient to use Ruby on Rails for a small website project that has no current need for a database. I know I could create an empty database in MySQL and go from there, but does anyone know a better way to run Rails without a database?

Thanks

How to configure Ruby on Rails with no database?

对于当前不需要数据库的小型网站项目，使用Ruby on Rails会很方便。我知道我可以在MySQL中创建一个空数据库，然后从那里开始，但是有没有人知道在没有数据库的情况下运行Rails的更好方法？谢谢

问如何在没有数据库的情况下配置Ruby on Rails？
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