Symfony validate form with mapped false form fields

Question

I\'ve got a form with extra fields added with the option mapped to false. But when I try to validate my form, it won\'t pass indicating \"this valu

Answer 1

Symfony 3.4 expression constraint based on non mapped fields :

$resolver->setDefaults([
        'data_class' => MyClass::class,
        'constraints' => [
            new Expression([
                'expression' => 'this["endTime"].getData() >= this["startTime"].getData()',
                'message' => 'L\'heure de fin doit être plus grande ou égale à l\'heure de début'
            ])
        ]
    ]);