Symfony2复选框和原理

Question

I would like to record a choice of checkboxes in my data base. I get this error:

ContextErrorException: Notice: Array to string conversion in //vendor/doctrine/dbal/lib/Doctrine/DBAL/Statement.php line 120

My form :

public function buildForm(FormBuilderInterface $builder, array $options)
    {
        $builder->add('adult_available', 'choice', array(
            'choices'   => array('A' => 'Adult', 'C' => 'Children'),
            'required'  => false,
            'expanded' => true,
            'multiple' => true
        ));

My field :

/**
     * @ORM\Column(type="string", columnDefinition="CHAR(1) NOT NULL")
     */
    protected $adult_available;

My form looks good! But when I submit I got the ContextErrorException exception

Thanks!

Answer 1

Try this:

/**
 * @var array
 *
 * @ORM\Column(name="adult_available", type="simple_array")
 */
private $adultAvailable;