用于开发和生产的Rails初始化器

I have the following code in /config/initializers/chargify.rb

我在/config/initializers/chargify.rb中有以下代码

Chargify.configure do |c|
  c.subdomain = 'example'
  c.api_key   = '123xyz'
end

But I have different settings for development and production.

但是我有不同的开发和生产环境。

So, how would I have a different set of variables values based on environment?

那么，如何根据环境得到一组不同的变量值呢?

4 个解决方案

#1

I would create a config file for this (config/chargify.yml):

我将为此创建一个配置文件(config/chargify.yml):

development:
  subdomain: example
  api_key: 123abc
production:
  subdomain: production_domain
  api_key: 890xyz

And then change your Initializer like this:

然后像这样改变初始化器:

chargify_config_file = File.join(Rails.root,'config','chargify.yml')
raise "#{chargify_config_file} is missing!" unless File.exists? chargify_config_file
chargify_config = YAML.load_file(chargify_config_file)[Rails.env].symbolize_keys

Chargify.configure do |c|
  c.subdomain = chargify_config[:subdomain]
  c.api_key   = chargify_config[:api_key]
end

#2

What about:

是什么:

Chargify.configure do |c|
  if Rails.env.production?
    # production settings
    c.api_key   = '123xyz'
  else
    # dev. and test settings
    c.api_key   = '123xyz'
  end
end

Better yet, you can reduce duplication with case block:

更好的是，您可以使用case block减少重复:

Chargify.configure do |c|
  c.subdomain = 'example'
  c.api_key   = case
    when Rails.env.production?
      '123xyz'
    when Rails.env.staging?
      'abc123'
    else
      'xyz123'
    end
end

#3

If you're going to need different settings for different environments, it's best to put them in the respective environment file, like config/environments/development.rb.

如果您需要针对不同的环境进行不同的设置，最好将它们放在相应的环境文件中，如config/environment /development.rb。

If you absolutely insist on putting them in an initializer (but please don't, that's what the environment files are for), you can use a case statement and inspect the value of Rails.env, which returns the name of the current environment as a string.

如果您绝对坚持将它们放在初始化器中(但请不要这样做，这就是环境文件所要做的)，您可以使用case语句并检查Rails的值。env，它以字符串的形式返回当前环境的名称。

#4

I would suggest you to use env variables

我建议你使用env变量

Chargify.configure do |c|
  c.subdomain = ENV['APP_SUBDOMAIN']
  c.api_key = ENV['API_KEY']
end

and set appropriate variables in ~/.bashrc or ~/.profile but note: this must be set for same user as Rails instance is opareting on. E.g. deploy user specified in capistrano is you used that for deployments

并在~/中设置适当的变量。bashrc或(~ /。配置文件但注意:这必须设置为与Rails实例相同的用户。在capistrano中指定的部署用户是用于部署的。

#1