instance method
option
Ruby on Rails edge
Since edgeSignature
option(*key, default: nil)Find singular or nested keys across all backends. Returns nil if no backend holds the key. If a default value is defined, it (or its callable value) will be returned on a missing key or nil value.
Given ENV:
DATABASE__HOST: "env.example.com"And credentials:
database:
host: "creds.example.com"
api_key: "secret"
api_host: nullExamples:
option(:database, :host) # => "env.example.com" (ENV overrides credentials)
option(:missing) # => nil
option(:missing, default: "localhost") # => "localhost"
option(:missing, default: -> { "localhost" }) # => "localhost"
option(:api_host, default: "api.example.com") # => "api.example.com" (nil values use default)
Parameters
-
keyrest -
defaultkey = nil
Source
# File activesupport/lib/active_support/combined_configuration.rb, line 80
def option(*key, default: nil)
@configurations.each do |config|
value = config.option(*key)
return value unless value.nil?
end
default.respond_to?(:call) ? default.call : default
end
Defined in activesupport/lib/active_support/combined_configuration.rb line 80
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Defined in ActiveSupport::CombinedConfiguration