diff options
Diffstat (limited to 'activerecord/lib/active_record')
-rw-r--r-- | activerecord/lib/active_record/attribute_methods/before_type_cast.rb | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/activerecord/lib/active_record/attribute_methods/before_type_cast.rb b/activerecord/lib/active_record/attribute_methods/before_type_cast.rb index 7fe5411a3b..faee99ccd1 100644 --- a/activerecord/lib/active_record/attribute_methods/before_type_cast.rb +++ b/activerecord/lib/active_record/attribute_methods/before_type_cast.rb @@ -1,5 +1,28 @@ module ActiveRecord module AttributeMethods + # = Active Record Attribute Methods Before Type Cast + # + # <tt>ActiveRecord::AttributeMethods::BeforeTypeCast</tt> provides a way to + # read the value of the attributes before typecasting and deserialization. + # + # class Task < ActiveRecord::Base + # end + # + # task = Task.new(id: '1', completed_on: '2012-10-21') + # task.id # => 1 + # task.completed_on # => Sun, 21 Oct 2012 + # + # task.attributes_before_type_cast + # # => {"id"=>"1", "completed_on"=>"2012-10-21", ... } + # task.read_attribute_before_type_cast('id') # => 1 + # task.read_attribute_before_type_cast('completed_on') # => "2012-10-21" + # + # In addition to #read_attribute_before_type_cast and #attributes_before_type_cast, + # it declares a method for all attributes with the <tt>*_before_type_cast</tt> + # suffix. + # + # task.id_before_type_cast # => "1" + # task.completed_on_before_type_cast # => "2012-10-21" module BeforeTypeCast extend ActiveSupport::Concern |