diff options
Diffstat (limited to 'activerecord/lib/active_record/relation/predicate_builder/association_query_value.rb')
-rw-r--r-- | activerecord/lib/active_record/relation/predicate_builder/association_query_value.rb | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/activerecord/lib/active_record/relation/predicate_builder/association_query_value.rb b/activerecord/lib/active_record/relation/predicate_builder/association_query_value.rb new file mode 100644 index 0000000000..3e19646ae5 --- /dev/null +++ b/activerecord/lib/active_record/relation/predicate_builder/association_query_value.rb @@ -0,0 +1,44 @@ +module ActiveRecord + class PredicateBuilder + class AssociationQueryValue # :nodoc: + def initialize(associated_table, value) + @associated_table = associated_table + @value = value + end + + def queries + [associated_table.association_foreign_key.to_s => ids] + end + + # TODO Change this to private once we've dropped Ruby 2.2 support. + # Workaround for Ruby 2.2 "private attribute?" warning. + protected + attr_reader :associated_table, :value + + private + def ids + case value + when Relation + value.select_values.empty? ? value.select(primary_key) : value + when Array + value.map { |v| convert_to_id(v) } + else + convert_to_id(value) + end + end + + def primary_key + associated_table.association_primary_key + end + + def convert_to_id(value) + case value + when Base + value._read_attribute(primary_key) + else + value + end + end + end + end +end |