diff options
Diffstat (limited to 'activerecord/lib/active_record/aggregations.rb')
| -rw-r--r-- | activerecord/lib/active_record/aggregations.rb | 13 |
1 files changed, 6 insertions, 7 deletions
diff --git a/activerecord/lib/active_record/aggregations.rb b/activerecord/lib/active_record/aggregations.rb index 087462a5bb..83a9ab46c5 100644 --- a/activerecord/lib/active_record/aggregations.rb +++ b/activerecord/lib/active_record/aggregations.rb @@ -11,11 +11,11 @@ module ActiveRecord # Active Record implements aggregation through a macro-like class method called +composed_of+ # for representing attributes as value objects. It expresses relationships like "Account [is] - # composed of Money [among other things]" or "Person [is] - # composed of [an] address". Each call to the macro adds a description of how the value objects - # are created from the attributes of the entity object (when the entity is initialized either - # as a new object or from finding an existing object) and how it can be turned back into attributes - # (when the entity is saved to the database). + # composed of Money [among other things]" or "Person [is] composed of [an] address". Each call + # to the macro adds a description of how the value objects are created from the attributes of + # the entity object (when the entity is initialized either as a new object or from finding an + # existing object) and how it can be turned back into attributes (when the entity is saved to + # the database). # # class Customer < ActiveRecord::Base # composed_of :balance, :class_name => "Money", :mapping => %w(balance amount) @@ -83,8 +83,7 @@ module ActiveRecord # customer.balance < Money.new(5) # => false # # Value objects can also be composed of multiple attributes, such as the case of Address. The order - # of the mappings will - # determine the order of the parameters. + # of the mappings will determine the order of the parameters. # # customer.address_street = "Hyancintvej" # customer.address_city = "Copenhagen" |