diff options
Diffstat (limited to 'activerecord/lib/active_record/associations/has_many_association.rb')
| -rw-r--r-- | activerecord/lib/active_record/associations/has_many_association.rb | 5 |
1 files changed, 4 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 dda22668c6..3b2f306637 100644 --- a/activerecord/lib/active_record/associations/has_many_association.rb +++ b/activerecord/lib/active_record/associations/has_many_association.rb @@ -17,7 +17,10 @@ module ActiveRecord # Returns the number of records in this collection. # # If the association has a counter cache it gets that value. Otherwise - # a count via SQL is performed, bounded to <tt>:limit</tt> if there's one. + # it will attempt to do a count via SQL, bounded to <tt>:limit</tt> if + # there's one. Some configuration options like :group make it impossible + # to do a SQL count, in those cases the array count will be used. + # # That does not depend on whether the collection has already been loaded # or not. The +size+ method is the one that takes the loaded flag into # account and delegates to +count_records+ if needed. |