diff options
Diffstat (limited to 'activerecord/lib/active_record/sanitization.rb')
| -rw-r--r-- | activerecord/lib/active_record/sanitization.rb | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/activerecord/lib/active_record/sanitization.rb b/activerecord/lib/active_record/sanitization.rb index ca767cc704..b502907c21 100644 --- a/activerecord/lib/active_record/sanitization.rb +++ b/activerecord/lib/active_record/sanitization.rb @@ -43,6 +43,36 @@ module ActiveRecord end end + # Accepts a hash of SQL conditions and replaces those attributes + # that correspond to a +composed_of+ relationship with their expanded + # aggregate attribute values. + # Given: + # class Person < ActiveRecord::Base + # composed_of :address, :class_name => "Address", + # :mapping => [%w(address_street street), %w(address_city city)] + # end + # Then: + # { :address => Address.new("813 abc st.", "chicago") } + # # => { :address_street => "813 abc st.", :address_city => "chicago" } + def expand_hash_conditions_for_aggregates(attrs) + expanded_attrs = {} + attrs.each do |attr, value| + if aggregation = reflect_on_aggregation(attr.to_sym) + mapping = aggregation.mapping + mapping.each do |field_attr, aggregate_attr| + if mapping.size == 1 && !value.respond_to?(aggregate_attr) + expanded_attrs[field_attr] = value + else + expanded_attrs[field_attr] = value.send(aggregate_attr) + end + end + else + expanded_attrs[attr] = value + end + end + expanded_attrs + end + # Sanitizes a hash of attribute/value pairs into SQL conditions for a WHERE clause. # { :name => "foo'bar", :group_id => 4 } # # => "name='foo''bar' and group_id= 4" @@ -58,6 +88,8 @@ module ActiveRecord # { :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) + attrs = expand_hash_conditions_for_aggregates(attrs) + table = Arel::Table.new(table_name).alias(default_table_name) PredicateBuilder.build_from_hash(arel_engine, attrs, table).map { |b| connection.visitor.accept b |