EC-CUBE
4.2.3
サーバーOS
Linux djungy 6.1.0-18-amd64 #1 SMP PREEMPT_DYNAMIC Debian 6.1.76-1 (2024-02-01) x86_64
DBサーバー
SQLite version 3.40.1
WEBサーバー
symfony-cli/5.8.14
PHP
7.4.33 (Core, date, libxml, openssl, pcre, sqlite3, zlib, 
bcmath, bz2, ctype, curl, dom, hash, fileinfo, filter, ftp, 
gd, SPL, iconv, intl, json, mbstring, session, standard, 
pcntl, mysqlnd, PDO, pdo_mysql, pdo_pgsql, pdo_sqlite, pgsql, 
Phar, posix, readline, Reflection, mysqli, shmop, SimpleXML, 
soap, sockets, exif, sysvsem, sysvshm, tidy, tokenizer, xml, 
xmlreader, xmlrpc, xmlwriter, xsl, zip, cgi-fcgi, Zend 
OPcache, xdebug)
User Agent
Mozilla/5.0 (X11; Linux x86_64; rv:109.0) Gecko/20100101 Firefox/115.0

                                <div class="ec-select ec-select__time">
                                    <label>{{ 'front.shopping.delivery_time'|trans }}</label>
                                    {{ form_widget(form.Shippings[idx].DeliveryTime, {'attr': {'class': 'form-control'}}) }}
                                    {{ form_errors(form.Shippings[idx].DeliveryTime) }}
                                </div>

        ])->add('Shippings', CollectionType::class, [
            'entry_type' => ShippingType::class,
            'by_reference' => false,

                $form->add(
                    'DeliveryTime',
                    EntityType::class,
                    [
                        'label' => 'front.shopping.delivery_time',
                        'class' => 'Eccube\Entity\DeliveryTime',
                        'choice_label' => 'deliveryTime',
                        'choices' => $DeliveryTimes,
                        'required' => false,
                        'placeholder' => 'common.select__unspecified',
                        'mapped' => false,
                        'data' => $ShippingDeliveryTime,
                    ]
                );

<?php

namespace Customize\Entity;

use Doctrine\ORM\Mapping as ORM;
use Eccube\Annotation\EntityExtension;
use Eccube\Entity\Shipping;
use Symfony\Component\Validator\Constraints as Assert;

/**
 * @EntityExtension("Eccube\Entity\Shipping")
 */
trait ShippingTrait
{
    /**
     * @var string|null
     * @ORM\Column(name="departure_time", type="string", length=255, nullable=true)
     * @Eccube\Annotation\FormAppend(
     *     auto_render=false,
     *     type="\Symfony\Component\Form\Extension\Core\Type\TextType",
     *     options={
     *          "required": true,
     *          "label": "出発時刻",
     *          "attr": {"placeholder": "例：10"}
     *     })
     * @Assert\NotBlank(message="入力されていません。")
     */
    private $shipping_departure_time;

    /**
     * Set shippingDepartureTime.
     *
     * @param string|null $shippingDepartureTime
     *
     * @return Shipping
     */
    public function setShippingDepartureTime($shippingDepartureTime = null)
    {
        $this->shipping_departure_time = $shippingDepartureTime;

        return $this;
    }

    /**
     * Get shippingDepartureTime.
     *
     * @return string|null
     */
    public function getShippingDepartureTime()
    {
        return $this->shipping_departure_time;
    }
}
```

フォームタイプ拡張用のコード
app/Customize/Form/Extension/OrderAddDepartureTimeExtension.php
[code]
<?php

namespace Customize\Form\Extension;

use Symfony\Component\Form\Extension\Core\Type\ChoiceType;
use Eccube\Form\Type\Front\EntryType;
use Eccube\Entity\Shipping;
use Symfony\Component\Form\AbstractTypeExtension;
use Symfony\Component\Form\Extension\Core\Type\TextType;
use Symfony\Component\Form\FormBuilderInterface;
use Symfony\Component\Validator\Constraints\NotBlank;
use Symfony\Component\Form\FormEvent;
use Symfony\Component\Form\FormEvents;

class OrderAddDepartureTimeExtension extends AbstractTypeExtension
{
    /**
     * {@inheritdoc}
     */
    public function buildForm(FormBuilderInterface $builder, array $options)
    {
        $builder->addEventListener(
            FormEvents::PRE_SET_DATA,
            function (FormEvent $event) {
                $form = $event->getForm();
                $form->add(
                    'shipping_departure_time',
                    ChoiceType::class,
                    [
                        'choices' => array_combine(range(1,20), range(1,20)),
                        'required' => false,
                        'placeholder' => 'common.select__unspecified',
                        'mapped' => false,
                        'data' => '0',
                    ]
                );
            }
        );
    }

    /**
     * {@inheritdoc}
     */
    public function getExtendedType()
    {
        return Shipping::class;
    }

    /**
     * {@inheritdoc}
     */
    public static function getExtendedTypes(): iterable
    {
        yield Shipping::class;
    }
}

                            <div class="ec-selects">
                                <div class="ec-select ec-select__time">
                                    <label>{{ 'front.shopping.delivery_time'|trans }}</label>
                                    {{ form_widget(form.Shippings[idx].shipping_departure_time, {'attr': {'class': 'form-control'}}) }}
                                    {{ form_errors(form.Shippings[idx].shipping_departure_time) }}
                                </div>
                            </div>

    'multiple' => false,
    'expanded' => false,

                    ChoiceType::class,
                    [
                        'choices' => array_combine(range(1,20), range(1,20)),
                        'required' => false,
                        'placeholder' => 'common.select__unspecified',
                        'mapped' => false,
                        'multiple' => false,
                        'expanded' => false,
                        'data' => '0',
                    ]