diff options
Diffstat (limited to 'activerecord/lib/active_record')
| -rw-r--r-- | activerecord/lib/active_record/counter_cache.rb | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/activerecord/lib/active_record/counter_cache.rb b/activerecord/lib/active_record/counter_cache.rb index 0ba54e6248..7d9b1b45b3 100644 --- a/activerecord/lib/active_record/counter_cache.rb +++ b/activerecord/lib/active_record/counter_cache.rb @@ -25,8 +25,14 @@ module ActiveRecord self.name end - foreign_key = has_many_association.foreign_key.to_s - child_class = has_many_association.klass + if has_many_association.is_a? ActiveRecord::Reflection::ThroughReflection + foreign_key = has_many_association.through_reflection.foreign_key.to_s + child_class = has_many_association.through_reflection.klass + else + foreign_key = has_many_association.foreign_key.to_s + child_class = has_many_association.klass + end + belongs_to = child_class.reflect_on_all_associations(:belongs_to) reflection = belongs_to.find { |e| e.foreign_key.to_s == foreign_key && e.options[:counter_cache].present? } counter_name = reflection.counter_cache_column |