Select multiple into a Symfony2 FORM

Question

I have this scenario

EntityA related to EntityB into a one-to-many fashion. I have created a form for EntityB and I want to select (with checkboxes) some of EntityA element.

How can I achieve this?

UPDATE

public function viewAction()
{
    $id_struttura = 9;
    $channel_rates = $this->getDoctrine()->getRepository('SestanteChannelManagerBundle:StrutturaCanaleTariffa')->findByStruttura($id_struttura);
    $list = array();
    foreach ($channel_rates as $channel_rate) {
        $list[$channel_rate->getId()] = $channel_rate->getNomeCameraTariffa();
    }
    $view = new View();
    $view->addChannelRate($channel_rates);
    $form = $this->createForm(new ViewType(), $view);
    $request = $this->getRequest();
    if ($request->getMethod() == 'POST') {
        $form->bindRequest($request);
        if ($form->isValid()) {
            $dateRange = new DateRange($date_from, $date_to);
            $channelDisp = $this->get('channel_dispatcher');
            $inventories = $channelDisp->queryAvailabilityRates($dateRange, $channelRateList);
            return $this->render('SestanteCDTestBundle:Main:view_result.html.twig', array('inventories' => $inventories));
        }
    }
    return $this->render('SestanteCDTestBundle:Main:view.html.twig', array('form' => $form->createView()));
}

This is my entity

<?php

namespace Sestante\CDTestBundle\Entity;

use Doctrine\Common\Collections\ArrayCollection;

class View
{
    protected $channel_rate;

    function __construct()
    {
        $this->channel_rate = new ArrayCollection();
    }


    /**
     * @return the $date_from
     */
    public function getDateFrom() {
        return $this->date_from;
    }

    /**
     * @return the $date_to
     */
    public function getDateTo() {
        return $this->date_to;
    }

    /**
     * @return the $channel_rate
     */
    public function getChannelRate() {
        return $this->channel_rate;
    }

    /**
     * @param field_type $date_from
     */
    public function setDateFrom($date_from) {
        $this->date_from = $date_from;
    }

    /**
     * @param field_type $date_to
     */
    public function setDateTo($date_to) {
        $this->date_to = $date_to;
    }

    /**
     * @param field_type $channel_rate
     */
    public function addChannelRate($channel_rate) {
          $this->channel_rate[] = $channel_rate;
    }
}

And this is my form

<?php

namespace Sestante\CDTestBundle\Form;

use Symfony\Component\Form\AbstractType;
use Symfony\Component\Form\FormBuilderInterface;

class ViewType extends AbstractType
{
    public function buildForm(FormBuilderInterface $builder, array $options)
    {
        $builder->add('date_from', 'date', array('widget' => 'single_text','format' => 'yyyy-MM-dd'));
        $builder->add('date_to', 'date', array('widget' => 'single_text','format' => 'yyyy-MM-dd'));
        $builder->add('channel_rate', 'entity', array('class'=>'SestanteChannelManagerBundle:StrutturaCanaleTariffa', 'multiple'=>true, 'expanded'=>true));
    }

    public function getName()
    {
        return 'view';
    }
}

If I add a statement like this (into entity) all works good:

foreach ($channel_rate as $ch)
{
$this->channel_rate[] = $ch;
}

moonwave99 · Accepted Answer · 2012-09-27 11:49:55Z

5

In your form's buildForm method:

$builder->add('entitya', 'entity', array(
    'class'     => 'YourAwesomeBundle:EntityA',
    'expanded'  => true,
    'multiple'  => true
));

As stated in reference.

EDIT looking at your code:

/**
 * @param field_type $channel_rate
 */
public function addChannelRate($channel_rate) {
      $this->channel_rate[] = $ch;
}

$ch is not defined in this method, you need to write `$this->channel_rate[] = $channel_rate.

Anyway, provide a setChannelRate method, as:

/**
 * @param ArrayCollection $rates
 */
public function setChannelRate($rates) {
      $this->channel_rate = $rates;
}

And retry.

edited Sep 27, 2012 at 11:49

answered Sep 27, 2012 at 11:24

moonwave99

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5 Comments

DonCallisto Over a year ago

It doesn't works. It gave me an error like "Collection expected, array given" (sorry I can't report it because now I've choose another way that isn't the best)

moonwave99 Over a year ago

Please post your entities code, and your request binding logic as well.

DonCallisto Over a year ago

So I have to create a set method and iterate over my array provided into input, as I do into my last "hint" in question??

moonwave99 Over a year ago

You don't need to iterate as you are replacing the whole collection - just copy/paste my method.

DonCallisto Over a year ago

$rates isn't an array collection.. Is an Array, an this make a problem. So I need to iterate.. But I get what you're saying, so I was on the right way.... ;-)

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