php - How can I implement Ajax Form Validation in Sonata Admin Bundle? -

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i newbie in symfony. use sonata admin bundle symfony 2.1. how can implement ajax form validation? there solutions?

i'm not sure if works in sonata admin 2.1 can try following if have example *sonata_type_collection*. set option: 'cascade_validation' => true should job.

that works quite fine @ current sonata admin (2.3).

$formmapper          ->with('customer_contacts', array('collapsed' => true))             ->add('customer_has_contacts', 'sonata_type_collection', array('cascade_validation' => true),                  array(                     'edit'              => 'inline',                     'inline'            => 'table',                     'sortable'          => 'position',                     'admin_code'        => 'acme_demo_bundle.customer_has_contacts',                 )             )         ->end();

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