diff options
Diffstat (limited to 'activerecord/lib')
| -rwxr-xr-x | activerecord/lib/active_record/validations.rb | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/activerecord/lib/active_record/validations.rb b/activerecord/lib/active_record/validations.rb index f455b97e0a..fb207ef4b2 100755 --- a/activerecord/lib/active_record/validations.rb +++ b/activerecord/lib/active_record/validations.rb @@ -572,7 +572,10 @@ module ActiveRecord # validates_associated :book # end # - # this would specify a circular dependency and cause infinite recursion. The Rails team recommends against this practice. + # ...this would specify a circular dependency and cause infinite recursion. + # + # NOTE: This validation will not fail if the association hasn't been assigned. If you want to ensure that the association + # is both present and guaranteed to be valid, you also need to use validates_presence_of. # # Configuration options: # * <tt>on</tt> Specifies when this validation is active (default is :save, other options :create, :update) |