blocks|key|1617018|text|我喜欢simpleconfig。它允许您具有每个环境的配置。|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|1617019|entityMap|0|LINK|mutability|MUTABLE|url|http://github.com/lukeredpath/simpleconfig/tree/master^0|3|C|0|0^^$0|@$1|2|3|4|5|6|7|L|8|@]|9|@$A|M|B|N|1|O]]|C|$]]|$1|D|3|-4|5|6|7|P|8|@]|9|@]|C|$]]]|E|$F|$5|G|H|I|C|$J|K]]]]

I like <a href="http://github.com/lukeredpath/simpleconfig/tree/master" rel="nofollow noreferrer">simpleconfig</a>. It allows you to have per environment configuration.

blocks|key|1402368|text|查看我对Where+is+the+best+place+to+store+application+parameters+:+database,+file,+code...?的回复|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|1402369|这是你所拥有的一个变体，因为它是对另一个文件的简单引用。它认为environment.rb不是不断更新的，也没有一堆应用程序特定的东西。尽管对你的问题“这是Rails的方式吗？”没有一个明确的答案，但也许会有一些关于这个问题的讨论。|1402370|entityMap|0|LINK|mutability|MUTABLE|url|https://stackoverflow.com/questions/566333/where-is-the-best-place-to-store-application-parameters-database-file-code/1697933#1697933^0|4|2A|0|0|0^^$0|@$1|2|3|4|5|6|7|N|8|@]|9|@$A|O|B|P|1|Q]]|C|$]]|$1|D|3|E|5|6|7|R|8|@]|9|@]|C|$]]|$1|F|3|-4|5|6|7|S|8|@]|9|@]|C|$]]]|G|$H|$5|I|J|K|C|$L|M]]]]

see my response to <a href="https://stackoverflow.com/questions/566333/where-is-the-best-place-to-store-application-parameters-database-file-code/1697933#1697933">Where is the best place to store application parameters : database, file, code...?</a>

A variation to what you had in that it's a simple reference to another file. It sees that environment.rb isn't constantly updated and doesn't have a heap of app specific stuff in it. 
Though not a specific answer to your question of 'is it the Rails way?', perhaps there'll be some discussion there about that.

blocks|key|1617165|text|Rails+3版本的初始化器代码如下(RAILS_ROOT和RAILS_ENV已弃用)|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1617166|APP_CONFIG+=+YAML.load_file(Rails.root.join('config',+'config.yml'))[Rails.env]|offset|length|style|CODE|1617167|此外，Ruby+1.9.3使用了使合并关键字区分大小写的which，因此您需要更改配置文件以考虑到这一点，例如|1617168|defaults:+&DEFAULTS
++audiocast_uri_format:+http://blablalba/blabbitybla/yadda

development:
++<<:+*DEFAULTS

test:
++<<:+*DEFAULTS

production:
++<<:+*DEFAULTS|code-block|syntax|javascript|1617169|entityMap^0|0|0|27|0|0|0^^$0|@$1|2|3|4|5|6|7|Q|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|R|8|@$D|S|E|T|F|G]]|9|@]|A|$]]|$1|H|3|I|5|6|7|U|8|@]|9|@]|A|$]]|$1|J|3|K|5|L|7|V|8|@]|9|@]|A|$M|N]]|$1|O|3|-4|5|6|7|W|8|@]|9|@]|A|$]]]|P|$]]

Rails 3 version of initialiser code is as follows (RAILS_ROOT &amp; RAILS_ENV are deprecated)

<code>APP_CONFIG = YAML.load_file(Rails.root.join('config', 'config.yml'))[Rails.env]</code>

Also, Ruby 1.9.3 uses Psych which makes merge keys case sensitive so you'll need to change your config file to take that into account, e.g.

<pre><code>defaults: &amp;DEFAULTS
 audiocast_uri_format: http://blablalba/blabbitybla/yadda

development:
 &lt;&lt;: *DEFAULTS

test:
 &lt;&lt;: *DEFAULTS

production:
 &lt;&lt;: *DEFAULTS
</code></pre>

blocks|key|1402505|text|我在Rails+3.0/3.1中使用了类似于John的东西，但我让erb先解析文件：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1402506|APP_CONFIG+=+YAML.load(ERB.new(File.new(File.expand_path('../config.yml',+__FILE__)).read).result)[Rails.env]|code-block|syntax|javascript|1402507|这允许我在需要的时候在我的配置中使用ERB，就像读取heroku的redistogo+url：|1402508|production:
++<<:+*default
++redis:++++++++++++++++++<%25=+ENV['REDISTOGO_URL']+%25>|1402509|entityMap^0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|N|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|O|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|P|8|@]|9|@]|A|$E|F]]|$1|K|3|-4|5|6|7|Q|8|@]|9|@]|A|$]]]|L|$]]

I use something similar to John for Rails 3.0/3.1, but I have erb parse the file first:

<pre><code>APP_CONFIG = YAML.load(ERB.new(File.new(File.expand_path('../config.yml', __FILE__)).read).result)[Rails.env]
</code></pre>

This allows me to use ERB in my config if I need to, like reading heroku's redistogo url:

<pre><code>production:
 &lt;&lt;: *default
 redis: &lt;%= ENV['REDISTOGO_URL'] %&gt;
</code></pre>

blocks|key|1402596|text|只是关于这个主题的一些额外信息：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1402597|APP_CONFIG+=+YAML.load_file(Rails.root.join('config',+'config.yml'))[Rails.env].with_indifferent_access|code-block|syntax|javascript|1402598|".with_indifferent_access“允许您使用字符串键或等效的符号键来访问散列中的值。|1402599|例如：|1402600|APP_CONFIG['audiocast_uri_format']++=>+'http://blablalba/blabbitybla/yadda'+APP_CONFIG[:audiocast_uri_format]++=>+'http://blablalba/blabbitybla/yadda'|offset|length|style|CODE|1402601|纯粹是为了方便，但我更喜欢将我的键表示为符号。|1402602|entityMap^0|0|0|0|0|0|23|24|22|0|0^^$0|@$1|2|3|4|5|6|7|U|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|V|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|W|8|@]|9|@]|A|$]]|$1|I|3|J|5|6|7|X|8|@]|9|@]|A|$]]|$1|K|3|L|5|6|7|Y|8|@$M|Z|N|10|O|P]|$M|11|N|12|O|P]]|9|@]|A|$]]|$1|Q|3|R|5|6|7|13|8|@]|9|@]|A|$]]|$1|S|3|-4|5|6|7|14|8|@]|9|@]|A|$]]]|T|$]]

Just some extra info on this topic:

<pre><code>APP_CONFIG = YAML.load_file(Rails.root.join('config', 'config.yml'))[Rails.env].with_indifferent_access
</code></pre>

".with_indifferent_access" allows you to access the values in the hash using a string key or with an equivalent symbol key.

eg. 
<code>APP_CONFIG['audiocast_uri_format'] =&gt; 'http://blablalba/blabbitybla/yadda'</code>
<code>APP_CONFIG[:audiocast_uri_format] =&gt; 'http://blablalba/blabbitybla/yadda'</code>

Purely a convenience thing, but I prefer to have my keys represented as symbols.

blocks|key|1402673|text|我只想更新这个Rails+4.2和5中最酷的东西，你现在可以在你的任何config/**/*.rb文件中这样做：|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|1402674|config.x.whatever+=+42|code-block|syntax|javascript|1402675|(这是一个字面上的x。从字面上看，config.x.必须是这样的，然后您可以在x之后添加任何您想要的内容)|1402676|...and这将在你的应用程序中提供：|1402677|Rails.configuration.x.whatever|1402678|点击此处查看更多信息：http://guides.rubyonrails.org/configuring.html#custom-configuration|1402679|entityMap|0|LINK|mutability|MUTABLE|url|http://guides.rubyonrails.org/configuring.html#custom-configuration^0|Z|E|0|0|9|1|H|9|13|1|0|0|0|B|1V|0|0^^$0|@$1|2|3|4|5|6|7|10|8|@$9|11|A|12|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|13|8|@]|D|@]|E|$I|J]]|$1|K|3|L|5|6|7|14|8|@$9|15|A|16|B|C]|$9|17|A|18|B|C]|$9|19|A|1A|B|C]]|D|@]|E|$]]|$1|M|3|N|5|6|7|1B|8|@]|D|@]|E|$]]|$1|O|3|P|5|H|7|1C|8|@]|D|@]|E|$I|J]]|$1|Q|3|R|5|6|7|1D|8|@]|D|@$9|1E|A|1F|1|1G]]|E|$]]|$1|S|3|-4|5|6|7|1H|8|@]|D|@]|E|$]]]|T|$U|$5|V|W|X|E|$Y|Z]]]]

I just wanted to update this for the latest cool stuff in Rails 4.2 and 5, you can now do this inside any of your <code>config/**/*.rb</code> files:

<pre><code>config.x.whatever = 42
</code></pre>

(and that's a literal <code>x</code> in there, ie. the <code>config.x.</code> literally must be that, and then you can add whatever you want after the <code>x</code>)

...and this will be available in your app as:

<pre><code>Rails.configuration.x.whatever
</code></pre>

See more here: <a href="http://guides.rubyonrails.org/configuring.html#custom-configuration" rel="nofollow noreferrer">http://guides.rubyonrails.org/configuring.html#custom-configuration</a>

blocks|key|1617393|text|Rails+4|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|1617394|要创建自定义配置yaml并加载它(并使其可用于您的应用程序)，方法与database_configuration类似。|1617395|创建您的*.yml，在我的例子中，我需要一个redis配置文件。|1617396|config/redis.yml|1617397|default:+&default
++host:+localhost
++port:+6379

development:
++<<:+*default

test:
++<<:+*default

production:
++<<:+*default
++host:+<%25=+ENV['ELASTICACHE_HOST']+%25>
++port:+<%25=+ENV['ELASTICACHE_PORT']+%25>|code-block|syntax|javascript|1617398|然后加载配置|1617399|config/application.rb|1617400|module+MyApp
++class+Application+<+Rails::Application

++++##+http://guides.rubyonrails.org/configuring.html#initialization-events
++++config.before_initialize+do
++++++Rails.configuration.redis_configuration+=+YAML.load_file("#{Rails.root}/config/redis.yml")
++++end

++end
end|1617401|访问值：|1617402|Rails.configuration.redis_configuration[Rails.env]类似于通过Rails.configuration.database_configuration[Rails.env]访问database.yml的方式|1617403|entityMap^0|0|7|0|Y|M|0|4|5|0|0|G|0|0|0|0|L|0|0|0|0|1E|1J|1H|32|C|0^^$0|@$1|2|3|4|5|6|7|12|8|@$9|13|A|14|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|15|8|@$9|16|A|17|B|C]]|D|@]|E|$]]|$1|H|3|I|5|6|7|18|8|@$9|19|A|1A|B|C]]|D|@]|E|$]]|$1|J|3|K|5|6|7|1B|8|@$9|1C|A|1D|B|C]]|D|@]|E|$]]|$1|L|3|M|5|N|7|1E|8|@]|D|@]|E|$O|P]]|$1|Q|3|R|5|6|7|1F|8|@]|D|@]|E|$]]|$1|S|3|T|5|6|7|1G|8|@$9|1H|A|1I|B|C]]|D|@]|E|$]]|$1|U|3|V|5|N|7|1J|8|@]|D|@]|E|$O|P]]|$1|W|3|X|5|6|7|1K|8|@]|D|@]|E|$]]|$1|Y|3|Z|5|6|7|1L|8|@$9|1M|A|1N|B|C]|$9|1O|A|1P|B|C]|$9|1Q|A|1R|B|C]]|D|@]|E|$]]|$1|10|3|-4|5|6|7|1S|8|@]|D|@]|E|$]]]|11|$]]

<code>Rails 4</code>

To create a custom configuration yaml and load it (and make available to your app) similar to how <code>database_configuration</code>.

Create your <code>*.yml</code>, in my case I needed a redis configuration file.

<code>config/redis.yml</code>

<pre><code>default: &amp;default
 host: localhost
 port: 6379

development:
 &lt;&lt;: *default

test:
 &lt;&lt;: *default

production:
 &lt;&lt;: *default
 host: &lt;%= ENV['ELASTICACHE_HOST'] %&gt;
 port: &lt;%= ENV['ELASTICACHE_PORT'] %&gt;
</code></pre>

Then load the configuration

<code>config/application.rb</code>

<pre><code>module MyApp
 class Application &lt; Rails::Application

 ## http://guides.rubyonrails.org/configuring.html#initialization-events
 config.before_initialize do
 Rails.configuration.redis_configuration = YAML.load_file("#{Rails.root}/config/redis.yml")
 end

 end
end
</code></pre>

Access the values:

<code>Rails.configuration.redis_configuration[Rails.env]</code> similar to how you can have access to your <code>database.yml</code> by <code>Rails.configuration.database_configuration[Rails.env]</code>

blocks|key|1617461|text|在Omer+Aslam的优雅解决方案的基础上，我决定将键转换为符号。唯一的变化是：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1617462|all_config+=+YAML.load_file("#{Rails.root}/config/config.yml").with_indifferent_access+%7C%7C+{}|code-block|syntax|javascript|1617463|这允许您随后通过符号引用值作为键，例如|1617464|AppConfig[:twitter][:key]|1617465|这在我看来更整洁。|1617466|(作为答案发布，因为我的声誉不够高，无法对Omer的回复发表评论)|1617467|entityMap^0|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|Q|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|R|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|S|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|T|8|@]|9|@]|A|$E|F]]|$1|K|3|L|5|6|7|U|8|@]|9|@]|A|$]]|$1|M|3|N|5|6|7|V|8|@]|9|@]|A|$]]|$1|O|3|-4|5|6|7|W|8|@]|9|@]|A|$]]]|P|$]]

Building on Omer Aslam's elegant solution, I decided to convert the keys into symbols. The only change is:

<pre><code>all_config = YAML.load_file("#{Rails.root}/config/config.yml").with_indifferent_access || {}
</code></pre>

This allows you to then reference values by symbols as keys, e.g.

<pre><code>AppConfig[:twitter][:key]
</code></pre>

This seems neater to my eyes.

(Posted as an answer as my reputation isn't high enough to comment on Omer's reply)

blocks|key|1617513|text|我自定义配置的最好方法，在缺少setting.yml时发出消息。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1617514|从config/initializers/+custom+_config.rb中的自定义初始值设定项加载|1617515|setting_config+=+File.join(Rails.root,'config','setting.yml')
raise+"#{setting_config}+is+missing!"+unless+File.exists?+setting_config
config+=+YAML.load_file(setting_config)[Rails.env].symbolize_keys

@APP_ID+=+config[:app_id]
@APP_SECRET+=+config[:app_secret]|code-block|syntax|javascript|1617516|在config/setting.yml中创建YAML|1617517|development:
++app_id:+433387212345678
++app_secret:+f43df96fc4f65904083b679412345678

test:
++app_id:+148166412121212
++app_secret:+7409bda8139554d11173a32222121212

production:
++app_id:+148166412121212
++app_secret:+7409bda8139554d11173a32222121212|1617518|entityMap^0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|O|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|P|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|Q|8|@]|9|@]|A|$G|H]]|$1|I|3|J|5|6|7|R|8|@]|9|@]|A|$]]|$1|K|3|L|5|F|7|S|8|@]|9|@]|A|$G|H]]|$1|M|3|-4|5|6|7|T|8|@]|9|@]|A|$]]]|N|$]]

My best way to custom config, with raise message when setting.yml is missing.

gets loaded from a custom initializer in config/initializers/custom_config.rb

<pre><code>setting_config = File.join(Rails.root,'config','setting.yml')
raise "#{setting_config} is missing!" unless File.exists? setting_config
config = YAML.load_file(setting_config)[Rails.env].symbolize_keys

@APP_ID = config[:app_id]
@APP_SECRET = config[:app_secret]
</code></pre>

Create a YAML in config/setting.yml

<pre><code>development:
 app_id: 433387212345678
 app_secret: f43df96fc4f65904083b679412345678

test:
 app_id: 148166412121212
 app_secret: 7409bda8139554d11173a32222121212

production:
 app_id: 148166412121212
 app_secret: 7409bda8139554d11173a32222121212
</code></pre>

I need to create one config option for my Rails application. It can be the same for all environments. I found that if I set it in <code>environment.rb</code>, it's available in my views, which is exactly what I want...

<pre><code>environment.rb

AUDIOCAST_URI_FORMAT = http://blablalba/blabbitybla/yadda
</code></pre>

Works great.

However, I'm a little uneasy. Is this a good way to do it? Is there a way that's more hip?

Best way to create custom config options for my Rails app?

我需要为我的Rails应用程序创建一个配置选项。它对于所有环境都可以是相同的。我发现如果我在environment.rb中设置它，它在我的视图中是可用的，这正是我想要的……environment.rbAUDIOCAST_URI_FORMAT = http://blablalba/blabbitybla/yadda效果很...

问为我的Rails应用程序创建自定义配置选项的最佳方式？
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问为我的Rails应用程序创建自定义配置选项的最佳方式？
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