Symfonyのセレクトボックスを選択しても値が空のまま送信される

Question

Symfony3（EC-CUBE4）でフォームを作成したのですが、フォームのセレクトボックスを選択しても以下のエラー通り、値がnullのまま送信されてしまいます。

SQLSTATE[23000]: Integrity constraint violation: 1048 Column 'channel_id' cannot be null

値を送信するにはどうしたらいいでしょうか。ご助言よろしくお願いします。

関連するtemplate、Entity、FormTypeは以下になります。

{#
This file is part of EC-CUBE

Copyright(c) EC-CUBE CO.,LTD. All Rights Reserved.

http://www.ec-cube.co.jp/

For the full copyright and license information, please view the LICENSE
file that was distributed with this source code.
#}
{% extends '@admin/default_frame.twig' %}

{% set menus = ['live', 'authority'] %}

{% block title %}
	配信権限登録
{% endblock %}
{% block sub_title %}
	{{ 'admin.setting.system'|trans }}
{% endblock %}

{% form_theme form '@admin/Form/bootstrap_4_horizontal_layout.html.twig' %}

{% block main %}
	<form name="member_form" role="form" id="member_form" method="post" action="" novalidate>
		{{ form_widget(form._token) }}
		<div class="c-contentsArea__cols">
			<div class="c-contentsArea__primaryCol">
				<div class="c-primaryCol">
					<div class="card rounded border-0 mb-4">
						<div class="card-header">
							<div class="row">
								<div class="col-8">
									<span class="card-title">{{ 'admin.setting.system.member.member_registration'|trans }}</span>
								</div>
								<div class="col-4 text-right">
									<a data-toggle="collapse" href="#memberInfo" aria-expanded="false" aria-controls="memberInfo">
										<i class="fa fa-angle-up fa-lg"></i>
									</a>
								</div>
							</div>
						</div>
						<div class="collapse show ec-cardCollapse" id="memberInfo">
							<div class="card-body">
								<div class="row mb-2">
									<div class="col-3">
										<span>チャンネル名</span>
										<span class="badge badge-primary ml-1">{{ 'admin.common.required'|trans }}</span>
									</div>
								    <div class="col">
										<div class="row">
											<div class="col">
												{{ form_widget(form.Channel) }}
											</div>
											{{ form_errors(form.Channel) }}
										</div>
									</div>
								</div>

								<div class="row mb-2">
									<div class="col-3">
										<span>条件</span>
										<span class="badge badge-primary ml-1">{{ 'admin.common.required'|trans }}</span>
									</div>
									<div class="col">
										<div class="row">
											<div class="col">
												{{ form_widget(form.live_condition) }}
											</div>
											{{ form_errors(form.live_condition) }}										</div>
								</div>
								</div>

								<div class="row mb-2">
									<div class="col-3">
										<span>条件の組み合わせ</span>
										<span class="badge badge-primary ml-1">{{ 'admin.common.required'|trans }}</span>
									</div>
									<div class="col">
										<div class="row">
											<div class="col">
												{{ form_widget(form.Combination) }}
											</div>
											{{ form_errors(form.Combination) }}
										</div>
									</div>
								</div>
								{# エンティティ拡張の自動出力 #}
								{% for f in form if f.vars.eccube_form_options.auto_render %}
									{% if f.vars.eccube_form_options.form_theme %}
										{% form_theme f f.vars.eccube_form_options.form_theme %}
										{{ form_row(f) }}
									{% else %}
										<div class="row mb-2">
											<div class="col-3">
												<span>{{ f.vars.label|trans }}</span>
											</div>
											<div class="col">
												{{ form_widget(f) }}
												{{ form_errors(f) }}
											</div>
										</div>
									{% endif %}
								{% endfor %}
							</div>
						</div>
					</div>
				</div>
			</div>
		</div>

		<div class="c-conversionArea">
			<div class="c-conversionArea__container">
				<div class="row justify-content-between align-items-center">
					<div class="col-6">
						<div class="c-conversionArea__leftBlockItem">
							<a class="c-baseLink" href="{{ url('admin_setting_system_member') }}">
								<i class="fa fa-backward" aria-hidden="true"></i>
								<span>{{ 'admin.setting.system.member_management'|trans }}</span>
							</a>
						</div>
					</div>
					<div class="col-6">
						<div id="ex-conversion-action" class="row align-items-center justify-content-end">
							<div class="col-auto">
								<button class="btn btn-ec-conversion px-5" type="submit">{{ 'admin.common.registration'|trans }}</button>
							</div>
						</div>
					</div>
				</div>
			</div>
		</div>
	</form>
{% endblock %}

<?php

namespace Customize\Entity;

use Customize\Entity\Master\Combination;
use DateTime;
use Doctrine\ORM\Mapping as ORM;
use Eccube\Entity\Member;
use Grpc\Channel;

/**
 * AuthorityRole
 *
 * @ORM\Table(name="dtb_live_authority_role")
 * @ORM\InheritanceType("SINGLE_TABLE")
 * @ORM\DiscriminatorColumn(name="discriminator_type", type="string", length=255)
 * @ORM\HasLifecycleCallbacks()
 * @ORM\Entity(repositoryClass="Customize\Repository\LiveAuthorityRoleRepository")
 */
class LiveAuthorityRole extends \Eccube\Entity\AbstractEntity
{

    /**
     * @var Channel
     *
     * @ORM\ManyToOne(targetEntity="Customize\Entity\LiveChannel")
     * @ORM\JoinColumns({
     *   @ORM\JoinColumn(name="channel_id", referencedColumnName="id")
     * })
     */
    private $Channel;

    /**
     * Set channel.
     *
     * @param Channel|null $channel
     *
     * @return LiveAuthorityRole
     */
    public function setChannel(Channel $channel = null)
    {
        $this->Channel = $channel;

        return $this;
    }

    /**
     * Get channel.
     *
     * @return Channel
     */
    public function getChannel()
    {
        return $this->Channel;
    }
}

<?php

/*
 * This file is part of EC-CUBE
 *
 * Copyright(c) EC-CUBE CO.,LTD. All Rights Reserved.
 *
 * http://www.ec-cube.co.jp/
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */

namespace Customize\Form\Type\Admin;

use Symfony\Bridge\Doctrine\Form\Type\EntityType;
use Symfony\Component\Form\AbstractType;
use Symfony\Component\Form\CallbackTransformer;
use Symfony\Component\Form\Extension\Core\Type\TextType;
use Symfony\Component\Form\FormBuilderInterface;
use Symfony\Component\Form\FormError;
use Symfony\Component\Form\FormEvent;
use Symfony\Component\Form\FormEvents;
use Symfony\Component\OptionsResolver\OptionsResolver;
use Symfony\Component\Validator\Constraints\Regex;
use Symfony\Component\Validator\Constraints\Length;
use Eccube\Common\EccubeConfig;
use Customize\Form\Type\Master\CombinationType;

class LiveAuthorityRoleType extends AbstractType
{
    /**
     * @var EccubeConfig
     */
    protected $eccubeConfig;

    public function __construct(EccubeConfig $eccubeConfig)
    {
        $this->eccubeConfig = $eccubeConfig;
    }

    /**
     * {@inheritdoc}
     */
    public function buildForm(FormBuilderInterface $builder, array $options)
    {
        $builder
            ->add('Channel', EntityType::class, [
                'class' => 'Customize\Entity\LiveChannel',
                'expanded' => false,
                'multiple' => false,
                'required' => true,
                "mapped" => false,
                'choice_label' => 'name',
            ])
            ->add('Combination', CombinationType::class, [
                'required' => true,
            ])
            ->add('live_condition', TextType::class, [
                'required' => true,
                'constraints' => [
                    new Length(['max' => $this->eccubeConfig['eccube_stext_len']]),
                ],
            ])
            ->addEventListener(FormEvents::POST_SUBMIT, function (FormEvent $event) {
                $form = $event->getForm();

                $Channel = $form['Channel']->getData();
                $condition = $form['live_condition']->getData();

                if (!$Channel && !empty($condition)) {
                    $form['Channel']->addError(new FormError(trans('admin.setting.system.authority.authority_not_selected')));
                } elseif ($Channel && empty($condition)) {
                    $form['live_condition']->addError(new FormError(trans('admin.setting.system.authority.deny_url_is_empty')));
                }
            });
    }

    /**
     * {@inheritdoc}
     */
    public function configureOptions(OptionsResolver $resolver)
    {
        $resolver->setDefaults([
            'data_class' => 'Customize\Entity\LiveAuthorityRole',
        ]);
    }

    /**
     * {@inheritdoc}
     */
    public function getBlockPrefix()
    {
        return 'admin_live_authority_role';
    }
}

Comments

[m.ts10806]

htmlが提示されていませんがview側の問題は全くないという根拠をご提示ください。

[dauto]

view側に問題があるという考えに至らなかったので提示していませんでした。
先程twigを追記しましたのでご確認よろしくお願いします。

Answer 1

"mapped" => false になっているため、 Entity に bind されていないのだと思われます