diff options
| -rw-r--r-- | activesupport/lib/active_support/core_ext/class/attribute.rb | 10 | ||||
| -rw-r--r-- | guides/source/active_support_core_extensions.md | 3 |
2 files changed, 11 insertions, 2 deletions
diff --git a/activesupport/lib/active_support/core_ext/class/attribute.rb b/activesupport/lib/active_support/core_ext/class/attribute.rb index a72dbc7bf0..e5a52db36a 100644 --- a/activesupport/lib/active_support/core_ext/class/attribute.rb +++ b/activesupport/lib/active_support/core_ext/class/attribute.rb @@ -8,6 +8,16 @@ class Class # Declare a class-level attribute whose value is inheritable by subclasses. # Subclasses can change their own value and it will not impact parent class. # + # ==== Options + # + # * <tt>:instance_reader</tt> - Sets the instance reader method (defaults to true). + # * <tt>:instance_writer</tt> - Sets the instance writer method (defaults to true). + # * <tt>:instance_accessor</tt> - Sets both instance methods (defaults to true). + # * <tt>:instance_predicate</tt> - Sets a predicate method (defaults to true). + # * <tt>:default</tt> - Sets a default value for the attribute (defaults to nil). + # + # ==== Examples + # # class Base # class_attribute :setting # end diff --git a/guides/source/active_support_core_extensions.md b/guides/source/active_support_core_extensions.md index 23f53ac084..4c37f6aba9 100644 --- a/guides/source/active_support_core_extensions.md +++ b/guides/source/active_support_core_extensions.md @@ -927,8 +927,7 @@ The generation of the writer instance method can be prevented by setting the opt ```ruby module ActiveRecord class Base - class_attribute :table_name_prefix, instance_writer: false - self.table_name_prefix = "" + class_attribute :table_name_prefix, instance_writer: false, default: "my" end end ``` |