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Clarify thread_mattr_accessor subclass behavior documentation

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Nate Berkopec 2015-12-17 10:31:54 -05:00
parent ff85101730
commit 0c28a06495
1 changed files with 9 additions and 8 deletions
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15
activesupport/lib/active_support/core_ext/module/attribute_accessors_per_thread.rb
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@ -96,22 +96,23 @@ class Module
# Defines both class and instance accessors for class attributes. # Defines both class and instance accessors for class attributes.
# #
# class Current # class Account
# thread_mattr_accessor :user # thread_mattr_accessor :user
# end # end
# #
# Current.user = "DHH" # Account.user = "DHH"
# Current.user # => "DHH" # Account.user # => "DHH"
# Current.new.user # => "DHH" # Account.new.user # => "DHH"
# #
# If a subclass changes the value then that will not change the value for # If a subclass changes the value, the parent class' value is not changed.
# parent class. Similarly if parent class changes the value then that will not # Similarly, if the parent class changes the value, the value of subclasses
# change the value of subclasses either. # is not changed.
# #
# class Customer < Account # class Customer < Account
# end # end
# #
# Customer.user = "Rafael" # Customer.user = "Rafael"
# Customer.user # => "Rafael"
# Account.user # => "DHH" # Account.user # => "DHH"
# #
# To opt out of the instance writer method, pass <tt>instance_writer: false</tt>. # To opt out of the instance writer method, pass <tt>instance_writer: false</tt>.