Revert "Removed reference to composed_of."

This reverts commit c34c1916d1d6cd6ba219aa39eb97fa2e77c4c61f.

Reason: composed_of was added from now to discuss better

1 files changed, 3 insertions, 0 deletions

diff --git a/activerecord/lib/active_record/sanitization.rb b/activerecord/lib/active_record/sanitization.rb
index 0dd4070ba4..ca767cc704 100644
--- a/activerecord/lib/active_record/sanitization.rb
+++ b/activerecord/lib/active_record/sanitization.rb
@@ -54,6 +54,9 @@ module ActiveRecord
       #     # => "`other_records`.`id` = 7"
       #   { :other_records => { :id => 7 } }
       #     # => "`other_records`.`id` = 7"
+      # And for value objects on a composed_of relationship:
+      #   { :address => Address.new("123 abc st.", "chicago") }
+      #     # => "address_street='123 abc st.' and address_city='chicago'"
       def sanitize_sql_hash_for_conditions(attrs, default_table_name = self.table_name)
         table = Arel::Table.new(table_name).alias(default_table_name)
         PredicateBuilder.build_from_hash(arel_engine, attrs, table).map { |b|