Part-DB.Part-DB-server/src/DataTables/Column/EntityColumn.php

<?php
/**
 * This file is part of Part-DB (https://github.com/Part-DB/Part-DB-symfony)
 *
 * Copyright (C) 2019 Jan Böhmer (https://github.com/jbtronics)
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA
 *
 */

namespace App\DataTables\Column;


use App\Entity\Base\DBElement;
use App\Entity\Base\NamedDBElement;
use App\Entity\Parts\Part;
use App\Services\EntityURLGenerator;
use Omines\DataTablesBundle\Column\AbstractColumn;
use Symfony\Component\OptionsResolver\Options;
use Symfony\Component\OptionsResolver\OptionsResolver;
use Symfony\Component\PropertyAccess\PropertyAccessorInterface;

class EntityColumn extends AbstractColumn
{

    protected $urlGenerator;
    protected $accessor;

    public function __construct(EntityURLGenerator $URLGenerator, PropertyAccessorInterface $accessor)
    {
        $this->urlGenerator = $URLGenerator;
        $this->accessor = $accessor;
    }

    /**
     * The normalize function is responsible for converting parsed and processed data to a datatables-appropriate type.
     *
     * @param mixed $value The single value of the column
     * @return mixed
     */
    public function normalize($value)
    {
        /** @var NamedDBElement $value */
        return $value;
    }

    public function configureOptions(OptionsResolver $resolver)
    {
        parent::configureOptions($resolver);

        $resolver->setRequired('property');

        $resolver->setDefault('field', function (Options $option) {
            return $option['property'] . '.name';
        });

        $resolver->setDefault('render', function (Options $options) {
            return function ($value, Part $context) use ($options) {
                /** @var DBElement $entity */
                $entity = $this->accessor->getValue($context, $options['property']);

                if ($entity) {
                    if ($entity->getID() !== null) {
                        return sprintf(
                            '<a href="%s">%s</a>',
                            $this->urlGenerator->listPartsURL($entity),
                            $value
                        );
                    } else {
                        return sprintf('<i>%s</i>', $value);
                    }
                }
            };
        });
    }
}