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[Validator] Clarify the usage of the value variable for the When constraint #21191

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Jul 9, 2025
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[Validator] Clarify the usage of the value variable for the When constraint #21191

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5 changes: 3 additions & 2 deletions reference/constraints/When.rst
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Expand Up @@ -173,8 +173,9 @@ in your expression:
``this``
The object being validated (e.g. an instance of Discount).
``value``
The value of the property being validated (only available when
the constraint is applied to a property).
Either the object being validated (when the constraint is applied to a class),
the value of the property being validated (when applied to a property),
or the :doc:`raw value </validation/raw_values>`.

The ``value`` variable can be used when you want to execute more complex
validation based on its value:
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