Oct 2, 2025 · Oct 2, 2025
diff --git a/reference/constraints/UniqueEntity.rst b/reference/constraints/UniqueEntity.rst
 ``email`` and a unique ``username``), you use two ``UniqueEntity`` entries,
 each with a single field.

 ``identifierFieldNames``
 ~~~~~~~~~~~~~~~~~~~~~~~~

 **type**: ``array``

 When applying the constraint to a non-entity class, this allows you to specify
 which field(s), on the object being validated, should be used to determine
 whether the object being validated is the same as an existing entity found
 with matching field value(s).

 If the value(s) found in the object being validated's ``identifierFieldNames``
 fields match the itentifiers of the object found in the databased, then that
 match is permitted.  If the identifiers to not match, then the found record
 will cause the valudation to fail.

 .. warning::

    The array of values given should be the same as the identifier fields on
    the entity class, otherwise a
    ``\Symfony\Component\Validator\Exception\ConstraintDefinitionException``
    will be thrown during validation.

 .. include:: /reference/constraints/_groups-option.rst.inc

 ``ignoreNull``
Original file line number	Diff line number	Diff line change
Expand Up		@@ -272,6 +272,28 @@ If you need to require two fields to be individually unique (e.g. a unique
		``email`` and a unique ``username``), you use two ``UniqueEntity`` entries,
		each with a single field.

		``identifierFieldNames``
		~~~~~~~~~~~~~~~~~~~~~~~~

		type: ``array``

		When applying the constraint to a non-entity class, this allows you to specify
		which field(s), on the object being validated, should be used to determine
		whether the object being validated is the same as an existing entity found
		with matching field value(s).

		If the value(s) found in the object being validated's ``identifierFieldNames``
		fields match the itentifiers of the object found in the databased, then that
		match is permitted. If the identifiers to not match, then the found record
		will cause the valudation to fail.

		.. warning::

		The array of values given should be the same as the identifier fields on
		the entity class, otherwise a
		``\Symfony\Component\Validator\Exception\ConstraintDefinitionException``
		will be thrown during validation.

		.. include:: /reference/constraints/_groups-option.rst.inc

		``ignoreNull``
Expand Down