From 1728b8bc919b7c6ff9c5056542ac01bef35f1171 Mon Sep 17 00:00:00 2001 From: Mike Gunderloy Date: Sat, 4 Oct 2008 08:31:50 -0500 Subject: Revise associations guide: no need to set default on counter_cache columns. --- railties/doc/guides/activerecord/association_basics.txt | 2 -- 1 file changed, 2 deletions(-) (limited to 'railties/doc/guides/activerecord/association_basics.txt') diff --git a/railties/doc/guides/activerecord/association_basics.txt b/railties/doc/guides/activerecord/association_basics.txt index b91052f91f..f9ec7a5f55 100644 --- a/railties/doc/guides/activerecord/association_basics.txt +++ b/railties/doc/guides/activerecord/association_basics.txt @@ -698,8 +698,6 @@ end Counter cache columns are added to the containing model's list of read-only attributes through +attr_readonly+. -WARNING: When you create a counter cache column in the database, be sure to specify a default value of zero. Otherwise, Rails will not properly maintain the counter. - ===== +:dependent+ If you set the +:dependent+ option to +:destroy+, then deleting this object will call the destroy method on the associated object to delete that object. If you set the +:dependent+ option to +:delete+, then deleting this object will delete the associated object _without_ calling its +destroy+ method. -- cgit v1.2.3