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-rw-r--r--activerecord/lib/active_record/validations/length.rb5
1 files changed, 4 insertions, 1 deletions
diff --git a/activerecord/lib/active_record/validations/length.rb b/activerecord/lib/active_record/validations/length.rb
index 5991fbad8e..ebb1034da7 100644
--- a/activerecord/lib/active_record/validations/length.rb
+++ b/activerecord/lib/active_record/validations/length.rb
@@ -22,7 +22,10 @@ module ActiveRecord
end
module ClassMethods
- # See <tt>ActiveModel::Validation::LengthValidator</tt> for more information.
+ # Validates that the specified attributes matches the length restrictions supplied.
+ # If the attribute is an association, records that are marked for destruction are not counted.
+ #
+ # See ActiveModel::Validations::HelperMethods.validates_length_of for more information.
def validates_length_of(*attr_names)
validates_with LengthValidator, _merge_attributes(attr_names)
end