method
mattr_accessor
mattr_accessor(*syms)
public
Extends the module object with module and instance accessors for class attributes, just like the native attr* accessors for instance attributes.
module AppConfiguration mattr_accessor :google_api_key self.google_api_key = "123456789" end AppConfiguration.google_api_key # => "123456789" AppConfiguration.google_api_key = "overriding the api key!" AppConfiguration.google_api_key # => "overriding the api key!"
To opt out of the instance writer method, pass instance_writer: false. To opt out of the instance reader method, pass instance_reader: false. To opt out of both instance methods, pass instance_accessor: false.