I have this Symfony form with a ManyToMany relation working fine, it displays all the parties with the property name
on the entity Party
.
When submitted, it queries the database according to the parties that are selected and retrieves the persons that are invited to those parties.
public function buildForm(FormBuilderInterface $builder, array $options) {
$builder
->add('parties', 'entity', array(
'class' => 'ProtoBundle:Party',
'multiple' => true,
'expanded' => false,
'property' => 'name',
'required' => false,));
}
with the parameter
'multiple' => 'true,
all the parties are displayed at the same time in a select drop down box (not what i want).
What I want is just to have one select tag with parameter
'empty_value' => 'choose a party'
, then when the user clicks on it, the values are displayed. Actually I can do this with the parameter
'multiple'=> false,
but the problem is that I get this error message:
Neither the property "parties" nor one of the methods "setParties()", "__set()" or "__call()" exist and have public access in class "Acme\ProtoBundle\Entity\Person".
Does anyone knows how to make this select tag working and bring me a detailed solution?