diff options
Diffstat (limited to 'activerecord/lib')
| -rw-r--r-- | activerecord/lib/active_record/associations/has_many_association.rb | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/activerecord/lib/active_record/associations/has_many_association.rb b/activerecord/lib/active_record/associations/has_many_association.rb index ca27c9fdde..794eb9e183 100644 --- a/activerecord/lib/active_record/associations/has_many_association.rb +++ b/activerecord/lib/active_record/associations/has_many_association.rb @@ -80,8 +80,15 @@ module ActiveRecord [association_scope.limit_value, count].compact.min end + + # Returns whether a counter cache should be used for this association. + # + # The counter_cache option must be given on either the owner or inverse + # association, and the column must be present on the owner. def has_cached_counter?(reflection = reflection()) - owner.attribute_present?(cached_counter_attribute_name(reflection)) + if reflection.options[:counter_cache] || (inverse = inverse_which_updates_counter_cache(reflection)) && inverse.options[:counter_cache] + owner.attribute_present?(cached_counter_attribute_name(reflection)) + end end def cached_counter_attribute_name(reflection = reflection()) |