From a970f916fb1e05376733e2d42d9bcc2b873af355 Mon Sep 17 00:00:00 2001 From: Xavier Noria Date: Thu, 21 Aug 2008 15:45:06 +0100 Subject: Fix has_many#count_records. [#865 state:resolved] Signed-off-by: Pratik Naik --- .../lib/active_record/associations/has_many_association.rb | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) (limited to 'activerecord/lib/active_record/associations/has_many_association.rb') diff --git a/activerecord/lib/active_record/associations/has_many_association.rb b/activerecord/lib/active_record/associations/has_many_association.rb index e6fa15c173..ce62127505 100644 --- a/activerecord/lib/active_record/associations/has_many_association.rb +++ b/activerecord/lib/active_record/associations/has_many_association.rb @@ -35,8 +35,11 @@ module ActiveRecord else @reflection.klass.count(:conditions => @counter_sql, :include => @reflection.options[:include]) end - - @target = [] and loaded if count == 0 + + # If there's nothing in the database and @target has no new records + # we are certain the current target is an empty array. This is a + # documented side-effect of the method that may avoid an extra SELECT. + @target ||= [] and loaded if count == 0 if @reflection.options[:limit] count = [ @reflection.options[:limit], count ].min -- cgit v1.2.3