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| -rw-r--r-- | guides/source/active_record_validations.md | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/guides/source/active_record_validations.md b/guides/source/active_record_validations.md index c98f24d786..0fda7c5cfd 100644 --- a/guides/source/active_record_validations.md +++ b/guides/source/active_record_validations.md @@ -538,7 +538,8 @@ end If you want to be sure that an association is present, you'll need to test whether the associated object itself is present, and not the foreign key used -to map the association. +to map the association. This way, it is not only checked that the foreign key +is not empty but also that the referenced object exists. ```ruby class LineItem < ApplicationRecord |