Kunstmaan / KunstmaanBundlesCMS

src/Kunstmaan/GeneratorBundle/Command/KunstmaanGenerateCommand.php

<?php

namespace Kunstmaan\GeneratorBundle\Command;

use Kunstmaan\AdminBundle\Form\WysiwygType;
use Kunstmaan\GeneratorBundle\Helper\CommandAssistant;
use Kunstmaan\GeneratorBundle\Helper\GeneratorUtils;
use Kunstmaan\GeneratorBundle\Helper\Sf4AppBundle;
use Kunstmaan\MediaBundle\Form\Type\MediaType;
use Kunstmaan\NodeBundle\Form\Type\URLChooserType;
use Sensio\Bundle\GeneratorBundle\Command\GenerateDoctrineCommand;
use Symfony\Bridge\Doctrine\Form\Type\EntityType;
use Symfony\Component\Console\Input\InputInterface;
use Symfony\Component\Console\Output\OutputInterface;
use Symfony\Component\DependencyInjection\Container;
use Symfony\Component\Finder\Finder;
use Symfony\Component\Form\Extension\Core\Type\CheckboxType;
use Symfony\Component\Form\Extension\Core\Type\DateTimeType;
use Symfony\Component\Form\Extension\Core\Type\IntegerType;
use Symfony\Component\Form\Extension\Core\Type\NumberType;
use Symfony\Component\Form\Extension\Core\Type\TextareaType;
use Symfony\Component\Form\Extension\Core\Type\TextType;
use Symfony\Component\HttpKernel\Bundle\BundleInterface;
use Symfony\Component\HttpKernel\Kernel;
use Symfony\Component\Yaml\Exception\ParseException;
use Symfony\Component\Yaml\Yaml;

abstract class KunstmaanGenerateCommand extends GenerateDoctrineCommand
{
    /**
     * @var CommandAssistant
     */
    protected $assistant;

    /**
     * Interacts with the user.
     *
     * @param InputInterface  $input  An InputInterface instance
     * @param OutputInterface $output An OutputInterface instance
     */
    protected function interact(InputInterface $input, OutputInterface $output)
    {
        $this->setInputAndOutput($input, $output);

        $welcomeText = $this->getWelcomeText();
        if (!empty($welcomeText)) {
            $this->assistant->writeSection($this->getWelcomeText());
        }

        $this->doInteract();
    }

    /**
     * @return int|null
     */
    protected function execute(InputInterface $input, OutputInterface $output)
    {
        $this->setInputAndOutput($input, $output);

        return $this->doExecute();
    }

    /**
     * Create the CommandAssistant.
     */
    private function setInputAndOutput(InputInterface $input, OutputInterface $output)
    {
        if (is_null($this->assistant)) {
            $this->assistant = new CommandAssistant();
            $this->assistant->setQuestionHelper($this->getQuestionHelper());
            $this->assistant->setKernel($this->getApplication()->getKernel());
        }
        $this->assistant->setOutput($output);
        $this->assistant->setInput($input);
    }

    /**
     * Do the interaction with the end user.
     */
    abstract protected function doInteract();

    /**
     * This function implements the final execution of the Generator.
     * It calls the execute function with the correct parameters.
     */
    abstract protected function doExecute();

    /**
     * The text to be displayed on top of the generator.
     *
     * @return string|array
     */
    abstract protected function getWelcomeText();

    /**
     * Get an array with all the bundles the user has created.
     *
     * @return array
     */
    protected function getOwnBundles()
    {
        $bundles = [];
        $counter = 1;
        $dir = dirname($this->getContainer()->getParameter('kernel.root_dir') . '/') . '/src/';
        $finder = new Finder();
        $finder->in($dir)->name('*Bundle.php');

        foreach ($finder as $file) {
            $bundles[$counter++] = [
                'name' => basename($file->getFilename(), '.php'),
                'namespace' => $file->getRelativePath(),
                'dir' => $file->getPath(),
            ];
        }

        return $bundles;
    }

    /**
     * Check that a bundle is available (loaded in AppKernel)
     *
     * @param string $bundleName
     *
     * @return bool
     */
    protected function isBundleAvailable($bundleName)
    {
        $allBundles = array_keys($this->assistant->getKernel()->getBundles());

        return in_array($bundleName, $allBundles);
    }

    /**
     * Asks for the prefix and sets it on the InputInterface as the 'prefix' option, if this option is not set yet.
     * Will set the default to a snake_cased namespace when the namespace has been set on the InputInterface.
     *
     * @param array  $text      What you want printed before the prefix is asked. If null is provided it'll write a default text.
     * @param string $namespace An optional namespace. If this is set it'll create the default based on this prefix.
     *                          If it's not provided it'll check if the InputInterface already has the namespace option.
     *
     * @return string The prefix. But it's also been set on the InputInterface.
     */
    protected function askForPrefix(array $text = null, $namespace = null)
    {
        $prefix = $this->assistant->getOptionOrDefault('prefix', null);

        if (is_null($text)) {
            $text = [
                'You can add a prefix to the table names of the generated entities for example: ' .
                '<comment>projectname_bundlename_</comment>',
                'Enter an underscore \'_\' if you don\'t want a prefix.',
                '',
            ];
        }

        while (is_null($prefix)) {
            if (count($text) > 0) {
                $this->assistant->writeLine($text);
            }

            if (is_null($namespace) || empty($namespace)) {
                $namespace = $this->assistant->getOption('namespace');
            } else {
                $namespace = $this->fixNamespace($namespace);
            }
            $defaultPrefix = GeneratorUtils::cleanPrefix($this->convertNamespaceToSnakeCase($namespace));
            $prefix = GeneratorUtils::cleanPrefix($this->assistant->ask('Tablename prefix', $defaultPrefix));

            if ($prefix == '') {
                break;
            }

            $output = $this->assistant->getOutput();
            if (!preg_match('/^[a-zA-Z_\x7f-\xff][a-zA-Z0-9_\x7f-\xff]*$/', $prefix)) {
                $output->writeln(sprintf('<bg=red> "%s" contains invalid characters</>', $prefix));
                $prefix = $text = null;

                continue;
            }

            $this->assistant->setOption('prefix', $prefix);
        }

        return $prefix;
    }

    /**
     * Converts something like Namespace\BundleNameBundle to namespace_bundlenamebundle.
     *
     * @param string $namespace
     *
     * @return string
     */
    private function convertNamespaceToSnakeCase($namespace)
    {
        if (is_null($namespace)) {
            return null;
        }

        return str_replace('/', '_', strtolower($this->fixNamespace($namespace)));
    }

    /**
     * Replaces '\' with '/'.
     *
     * @param $namespace
     *
     * @return mixed
     */
    private function fixNamespace($namespace)
    {
        return str_replace('\\', '/', $namespace);
    }

    /**
     * Ask for which bundle we need to generate something. It there is only one custom bundle
     * created by the user, we don't ask anything and just use that bundle. If the user provided
     * a namespace as input option, we try to get that bundle first.
     *
     * @param string      $objectName          The thing we are going to create (pagepart, bundle, layout, ...)
     * @param string|null $namespace           The namespace provided as input option
     * @param string      $questionMoreBundles
     * @param string      $questionOneBundle
     *
     * @return BundleInterface
     */
    protected function askForBundleName(
        $objectName,
        $namespace = null,
        $questionMoreBundles = "\nIn which bundle do you want to create the %s",
        $questionOneBundle = "The %s will be created for the <comment>%s</comment> bundle.\n"
    ) {
        if (Kernel::VERSION_ID >= 40000) {
            return new Sf4AppBundle($this->getContainer()->getParameter('kernel.project_dir'));
        }

        $ownBundles = $this->getOwnBundles();
        if (count($ownBundles) <= 0) {
            $this->assistant->writeError("Looks like you don't have created any bundles for your project...", true);
        }

        // If the user provided the namespace as input option
        if (!is_null($namespace)) {
            foreach ($ownBundles as $key => $bundleInfo) {
                if (GeneratorUtils::fixNamespace($namespace) == GeneratorUtils::fixNamespace(
                        $bundleInfo['namespace']
                    )
                ) {
                    $bundleName = $bundleInfo['name'];

                    break;
                }
            }

            // When the provided namespace was not found, we show an error on the screen and ask the bundle again
            if (empty($bundleName)) {
                $this->assistant->writeError("The provided bundle namespace '$namespace' was not found...");
            }
        }

        if (empty($bundleName)) {
            // If we only have 1 bundle, we don't need to ask
            if (count($ownBundles) > 1) {
                $bundleSelect = [];
                foreach ($ownBundles as $key => $bundleInfo) {
                    $bundleSelect[$key] = $bundleInfo['name'];
                }
                $bundleId = $this->assistant->askSelect(
                    sprintf($questionMoreBundles, $objectName),
                    $bundleSelect
                );
                $bundleName = $ownBundles[$bundleId]['name'];

                $this->assistant->writeLine('');
            } else {
                $bundleName = $ownBundles[1]['name'];
                $this->assistant->writeLine(
                    [sprintf($questionOneBundle, $objectName, $bundleName)]
                );
            }
        }

        $bundle = $this->assistant->getKernel()->getBundle($bundleName);

        return $bundle;
    }

    /**
     * Ask the end user to select one (or more) section configuration(s).
     *
     * @param string      $question
     * @param bool        $multiple
     * @param string|null $context
     * @param array       $defaultSections
     *
     * @return array|null
     */
    protected function askForSections(
        $question,
        BundleInterface $bundle,
        $multiple = false,
        $context = null,
        $defaultSections = []
    ) {
        $allSections = $this->getAvailableSections($bundle, $context, $defaultSections);
        $sections = [];

        // If there are more options to choose from, we ask the end user
        if (count($allSections) > 0) {
            $sectionSelect = [];
            foreach ($allSections as $key => $sectionInfo) {
                $sectionSelect[$key] = $sectionInfo['name'] . ' (' . $sectionInfo['file'] . ')';
            }
            $this->assistant->writeLine('');
            $sectionIds = $this->assistant->askSelect($question, $sectionSelect, null, $multiple);
            if (is_array($sectionIds)) {
                foreach ($sectionIds as $id) {
                    $sections[] = $allSections[$id]['file'];
                }
            } else {
                $sections[] = $allSections[$sectionIds]['file'];
            }
        }

        if ($multiple) {
            return $sections;
        } else {
            return count($sections) > 0 ? $sections[0] : null;
        }
    }

    /**
     * Get an array with the available page sections. We also parse the yaml files to get more information about
     * the sections.
     *
     * @param BundleInterface $bundle          The bundle for which we want to get the section configuration
     * @param string|null     $context         If provided, only return configurations with this context
     * @param array           $defaultSections The default section configurations that are always available
     *
     * @return array
     */
    protected function getAvailableSections(BundleInterface $bundle, $context = null, $defaultSections = [])
    {
        $configs = [];
        $counter = 1;

        // Get the available sections from disc
        $dir = Kernel::VERSION_ID >= 40000 ?
            $this->getContainer()->getParameter('kernel.project_dir') . '/config/kunstmaancms/pageparts/' :
            $bundle->getPath() . '/Resources/config/pageparts/'
        ;
        if (file_exists($dir) && is_dir($dir)) {
            $finder = new Finder();
            $finder->files()->in($dir)->depth('== 0');
            foreach ($finder as $file) {
                $info = $this->getSectionInfo($dir, $file->getFileName());

                if (is_array($info) && (is_null($context) || $info['context'] == $context)) {
                    $configs[$counter++] = $info;
                    if (array_key_exists($info['file'], $defaultSections)) {
                        unset($defaultSections[$info['file']]);
                    }
                }
            }
        }

        // Add the default sections
        foreach ($defaultSections as $file => $info) {
            if (is_null($context) || $info['context'] == $context) {
                $configs[$counter++] = $info;
            }
        }

        return $configs;
    }

    /**
     * Get the information about a pagepart section configuration file.
     *
     * @param string $dir
     * @param string $file
     *
     * @return array|null
     */
    private function getSectionInfo($dir, $file)
    {
        $info = null;

        try {
            $data = Yaml::parse(file_get_contents($dir . $file));

            if (array_key_exists('kunstmaan_page_part', $data)) {
                //Get rid of the bundle config lines
                $data = array_values(array_values(array_values($data)[0])[0])[0];
            }

            $info = [
                'name' => $data['name'],
                'context' => $data['context'],
                'file' => $file,
                //'file_clean' => substr($file, 0, strlen($file)-4)
            ];
        } catch (ParseException $e) {
        }

        return $info;
    }

    /**
     * Get an array of fields that need to be added to the entity.
     *
     * @return array
     */
    protected function askEntityFields(BundleInterface $bundle, array $reservedFields = ['id'])
    {
        $this->assistant->writeLine('<info>Available field types:</info> ');
        $typeSelect = $this->getTypes(true);
        foreach ($typeSelect as $type) {
            $this->assistant->writeLine(sprintf('<comment>- %s</comment>', $type));
        }

        $fields = [];
        $typeStrings = $this->getTypes();
        $mediaTypeSelect = $this->getMediaTypes();
        $generator = $this->getGenerator();
        $container = $this->getContainer();

        while (true) {
            $this->assistant->writeLine('');

            $fieldName = $this->assistant->askAndValidate(
                'New field name (press <return> to stop adding fields)',
                function ($name) use ($fields, $reservedFields, $generator) {
                    // The fields cannot exist in the reserved field list
                    if (in_array($name, $reservedFields)) {
                        throw new \InvalidArgumentException(sprintf('Field "%s" is already defined in the parent class', $name));
                    }

                    // The fields cannot exist already
                    if (isset($fields[$name])) {
                        throw new \InvalidArgumentException(sprintf('Field "%s" is already defined', $name));
                    }

                    // Check reserved words
                    if ($generator->isReservedKeyword($name)) {
                        throw new \InvalidArgumentException(sprintf('Name "%s" is a reserved word', $name));
                    }

                    // Only accept a-z
                    if (!preg_match('/^[a-zA-Z][a-zA-Z_0-9]+$/', $name) && $name != '') {
                        throw new \InvalidArgumentException(sprintf('Name "%s" is invalid', $name));
                    }

                    return $name;
                }
            );

            // When <return> is entered
            if (!$fieldName) {
                break;
            }

            $typeId = $this->assistant->askSelect('Field type', $typeSelect);

            // If single -or multipe entity reference in chosen, we need to ask for the entity name
            if (in_array($typeStrings[$typeId], ['single_ref', 'multi_ref'])) {
                $bundleName = $bundle->getName();
                $egName = $this->isSymfony4() ? 'App\Entity\FaqItem' : "$bundleName:FaqItem, $bundleName:Blog/Comment";
                $question = sprintf('Reference entity name (eg. %s)', $egName);
                $name = $this->assistant->askAndValidate(
                    $question,
                    function ($name) use ($generator, $container) {
                        /*
                         * Replace slash to backslash. Eg: CmsBundle:Blog/Comment --> CmsBundle:Blog\Comment
                         *
                         * @see \Doctrine\Common\Persistence\Mapping\AbstractClassMetadataFactory::getMetadataFor()
                         * @see \Doctrine\ORM\Mapping\ClassMetadataFactory::getFqcnFromAlias()
                         */
                        if (!$this->isSymfony4()) {
                            $name = strtr($name, '/', '\\');

                            $parts = explode(':', $name);

                            // Should contain colon
                            if (count($parts) != 2) {
                                throw new \InvalidArgumentException(sprintf('"%s" is an invalid entity name', $name));
                            }
                        } else {
                            $parts = explode('\\', $name);
                        }

                        // Check reserved words
                        if ($generator->isReservedKeyword(end($parts))) {
                            throw new \InvalidArgumentException(sprintf('"%s" contains a reserved word', $name));
                        }

                        $em = $container->get('doctrine')->getManager();

                        try {
                            $em->getClassMetadata($name);
                        } catch (\Exception $e) {
                            throw new \InvalidArgumentException(sprintf('Entity "%s" not found', $name));
                        }

                        return $name;
                    },
                    null,
                    [$bundleName]
                );

                $extra = $name;
            } else {
                $extra = null;
            }

            // If image type, force image media filter
            if ($typeStrings[$typeId] == 'image') {
                $extra = 'image';
            }

            // If media type, ask for media filter
            if ($typeStrings[$typeId] == 'media') {
                $mediaTypeId = $this->assistant->askSelect('Media filter', $mediaTypeSelect);
                $extra = strtolower($mediaTypeSelect[$mediaTypeId]);
            }

            if ($typeStrings[$typeId] == 'image' || $typeStrings[$typeId] == 'media') {
                // Ask the allowed mimetypes for the media ojbect
                $mimeTypes = $this->assistant->ask('Do you want to limit the possible file types? Then specify a comma-seperated list of types (example: image/png,image/svg+xml), otherwise press ENTER',
                    null
                );
                if (isset($mimeTypes)) {
                    $mimeTypes = explode(',', $mimeTypes);
                }
                $data = [
                    'name' => $fieldName,
                    'type' => $typeStrings[$typeId],
                    'extra' => $extra,
                    'mimeTypes' => $mimeTypes,
                    'minHeight' => null,
                    'maxHeight' => null,
                    'minWidth' => null,
                    'maxWidth' => null,
                ];

                if ($extra == 'image') {
                    $minHeight = $maxHeight = $minWidth = $maxWidth = null;
                    if ($this->assistant->askConfirmation('Do you want to add validation of the dimensions of the media object? (y/n)',
                        'n',
                        '?',
                        false
                    )) {
                        // Ask the minimum height allowed for the image
                        $lengthValidation = function ($length) {
                            if ((is_numeric($length) && $length < 0) || (!is_numeric($length) && !empty($length))) {
                                throw new \InvalidArgumentException(sprintf('"%s" is not a valid length', $length));
                            } else {
                                return $length;
                            }
                        };

                        $minHeight = $this->assistant->askAndValidate('What is the minimum height for the media object? (in pixels)',
                            $lengthValidation
                        );

                        // Ask the maximum height allowed for the image
                        $maxHeight = $this->assistant->askAndValidate('What is the maximum height for the media object? (in pixels)',
                            $lengthValidation
                        );

                        // Ask the minimum width allowed for the image
                        $minWidth = $this->assistant->askAndValidate('What is the minimum width for the media object? (in pixels)',
                            $lengthValidation
                        );

                        //Ask the maximum width allowed for the image
                        $maxWidth = $this->assistant->askAndValidate('What is the maximum width for the media object? (in pixels)',
                            $lengthValidation
                        );
                    }
                    $data = [
                        'name' => $fieldName,
                        'type' => 'image',
                        'extra' => $extra,
                        'minHeight' => $minHeight,
                        'maxHeight' => $maxHeight,
                        'minWidth' => $minWidth,
                        'maxWidth' => $maxWidth,
                        'mimeTypes' => $mimeTypes,
                    ];
                }
            } else {
                $data = [
                    'name' => $fieldName,
                    'type' => $typeStrings[$typeId],
                    'extra' => $extra,
                    'minHeight' => null,
                    'maxHeight' => null,
                    'minWidth' => null,
                    'maxWidth' => null,
                    'mimeTypes' => null,
                ];
            }

            $fields[$fieldName] = $data;
        }

        return $fields;
    }

    /**
     * Get all the available types.
     *
     * @param bool $niceNames
     *
     * @return array
     */
    private function getTypes($niceNames = false)
    {
        $counter = 1;

        $types = [];
        $types[$counter++] = $niceNames ? 'Single line text' : 'single_line';
        $types[$counter++] = $niceNames ? 'Multi line text' : 'multi_line';
        $types[$counter++] = $niceNames ? 'Wysiwyg' : 'wysiwyg';
        $types[$counter++] = $niceNames ? 'Link (url, text, new window)' : 'link';
        if ($this->isBundleAvailable('KunstmaanMediaPagePartBundle')) {
            $types[$counter++] = $niceNames ? 'Image (media, alt text)' : 'image';
            $types[$counter++] = $niceNames ? 'Media (File or Video or Slideshow)' : 'media';
        }
        $types[$counter++] = $niceNames ? 'Single entity reference' : 'single_ref';
        $types[$counter++] = $niceNames ? 'Multi entity reference' : 'multi_ref';
        $types[$counter++] = $niceNames ? 'Boolean' : 'boolean';
        $types[$counter++] = $niceNames ? 'Integer' : 'integer';
        $types[$counter++] = $niceNames ? 'Decimal number' : 'decimal';
        $types[$counter++] = $niceNames ? 'DateTime' : 'datetime';

        return $types;
    }

    /**
     * Get all available media types.
     *
     * @return array
     */
    private function getMediaTypes()
    {
        $counter = 1;

        $types = [];
        $types[$counter++] = 'None';
        $types[$counter++] = 'File';
        $types[$counter++] = 'Image';
        $types[$counter++] = 'Video';

        return $types;
    }

    /**
     * Get all the entity fields for a specific type.
     *
     * @param      $objectName
     * @param      $prefix
     * @param      $name
     * @param      $type
     * @param null $extra
     * @param bool $allNullable
     * @param null $minHeight
     * @param null $maxHeight
     * @param null $minWidth
     * @param null $maxWidth
     * @param null $mimeTypes
     *
     * @return array
     */
    protected function getEntityFields(
        BundleInterface $bundle,
        $objectName,
        $prefix,
        $name,
        $type,
        $extra = null,
        $allNullable = false,
        $minHeight = null,
        $maxHeight = null,
        $minWidth = null,
        $maxWidth = null,
        $mimeTypes = null
    ) {
        $fields = [];
        switch ($type) {
            case 'single_line':
                $fields[$type][] = [
                    'fieldName' => lcfirst(Container::camelize($name)),
                    'type' => 'string',
                    'length' => '255',
                    'formType' => TextType::class,
                    'nullable' => $allNullable,
                ];

                break;
            case 'multi_line':
                $fields[$type][] = [
                    'fieldName' => lcfirst(Container::camelize($name)),
                    'type' => 'text',
                    'formType' => TextareaType::class,
                    'nullable' => $allNullable,
                ];

                break;
            case 'wysiwyg':
                $fields[$type][] = [
                    'fieldName' => lcfirst(Container::camelize($name)),
                    'type' => 'text',
                    'formType' => WysiwygType::class,
                    'nullable' => $allNullable,
                ];

                break;
            case 'link':
                foreach (['url', 'text'] as $subField) {
                    $fields[$type][$subField] = [
                        'fieldName' => lcfirst(Container::camelize($name . '_' . $subField)),
                        'type' => 'string',
                        'formType' => $subField == 'url' ? URLChooserType::class : TextType::class,
                        'nullable' => $allNullable,
                    ];
                }
                $fields[$type]['new_window'] = [
                    'fieldName' => lcfirst(Container::camelize($name . '_new_window')),
                    'type' => 'boolean',
                    'nullable' => true,
                    'formType' => CheckboxType::class,
                ];

                break;
            case 'image':
                $fields[$type]['image'] = [
                    'fieldName' => lcfirst(Container::camelize($name)),
                    'type' => 'image',
                    'formType' => MediaType::class,
                    'mediaType' => $extra,
                    'minHeight' => $minHeight,
                    'maxHeight' => $maxHeight,
                    'minWidth' => $minWidth,
                    'maxWidth' => $maxWidth,
                    'mimeTypes' => $mimeTypes,
                    'targetEntity' => 'Kunstmaan\MediaBundle\Entity\Media',
                    'joinColumn' => [
                        'name' => str_replace('.', '_', Container::underscore($name . '_id')),
                        'referencedColumnName' => 'id',
                    ],
                    'nullable' => $allNullable,
                ];
                $fields[$type]['alt_text'] = [
                    'fieldName' => lcfirst(Container::camelize($name . '_alt_text')),
                    'type' => 'text',
                    'nullable' => true,
                    'formType' => TextType::class,
                ];

                break;
            case 'media':
                $fields[$type][] = [
                    'fieldName' => lcfirst(Container::camelize($name)),
                    'type' => 'media',
                    'formType' => MediaType::class,
                    'mediaType' => $extra,
                    'mimeTypes' => $mimeTypes,
                    'targetEntity' => 'Kunstmaan\MediaBundle\Entity\Media',
                    'joinColumn' => [
                        'name' => str_replace('.', '_', Container::underscore($name . '_id')),
                        'referencedColumnName' => 'id',
                    ],
                    'nullable' => $allNullable,
                ];

                break;
            case 'single_ref':
                $em = $this->getContainer()->get('doctrine')->getManager();
                $entityName = $em->getClassMetadata($extra)->getName();
                $fields[$type][] = [
                    'fieldName' => lcfirst(Container::camelize($name)),
                    'type' => 'entity',
                    'formType' => EntityType::class,
                    'targetEntity' => $entityName,
                    'joinColumn' => [
                        'name' => str_replace('.', '_', Container::underscore($name . '_id')),
                        'referencedColumnName' => 'id',
                    ],
                    'nullable' => $allNullable,
                ];

                break;
            case 'multi_ref':
                $em = $this->getContainer()->get('doctrine')->getManager();
                $entityName = $em->getClassMetadata($extra)->getName();
                $parts = explode('\\', $entityName);
                $joinTableName = strtolower(
                    $prefix . Container::underscore($objectName) . '_' . Container::underscore(
                        $parts[count($parts) - 1]
                    )
                );
                $fields[$type][] = [
                    'fieldName' => lcfirst(Container::camelize($name)),
                    'type' => 'entity',
                    'formType' => EntityType::class,
                    'targetEntity' => $entityName,
                    'joinTable' => [
                        'name' => $joinTableName,
                        'joinColumns' => [
                            [
                                'name' => strtolower(Container::underscore($objectName)) . '_id',
                                'referencedColumnName' => 'id',
                            ],
                        ],
                        'inverseJoinColumns' => [
                            [
                                'name' => strtolower(
                                        Container::underscore($parts[count($parts) - 1])
                                    ) . '_id',
                                'referencedColumnName' => 'id',
                                'unique' => true,
                            ],
                        ],
                    ],
                    'nullable' => $allNullable,
                ];

                break;
            case 'boolean':
                $fields[$type][] = [
                    'fieldName' => lcfirst(Container::camelize($name)),
                    'type' => 'boolean',
                    'formType' => CheckboxType::class,
                    'nullable' => $allNullable,
                ];

                break;
            case 'integer':
                $fields[$type][] = [
                    'fieldName' => lcfirst(Container::camelize($name)),
                    'type' => 'integer',
                    'formType' => IntegerType::class,
                    'nullable' => $allNullable,
                ];

                break;
            case 'decimal':
                $fields[$type][] = [
                    'fieldName' => lcfirst(Container::camelize($name)),
                    'type' => 'decimal',
                    'precision' => 10,
                    'scale' => 2,
                    'formType' => NumberType::class,
                    'nullable' => $allNullable,
                ];

                break;
            case 'datetime':
                $fields[$type][] = [
                    'fieldName' => lcfirst(Container::camelize($name)),
                    'type' => 'datetime',
                    'formType' => DateTimeType::class,
                    'nullable' => $allNullable,
                ];

                break;
        }

        return $fields;
    }

    /**
     * Get an array with the available page templates.
     *
     * @param BundleInterface $bundle The bundle for which we want to get the template configurations
     *
     * @return array
     */
    protected function getAvailableTemplates(BundleInterface $bundle)
    {
        $configs = [];
        $counter = 1;

        // Get the available sections from disc
        if (Kernel::VERSION_ID >= 40000) {
            $dir = $this->getContainer()->getParameter('kernel.project_dir') . '/config/kunstmaancms/pagetemplates/';
        } else {
            $dir = $bundle->getPath() . '/Resources/config/pagetemplates/';
        }

        if (file_exists($dir) && is_dir($dir)) {
            $finder = new Finder();
            $finder->files()->in($dir)->depth('== 0');
            foreach ($finder as $file) {
                $info = $this->getTemplateInfo($dir, $file->getFileName());
                if (is_array($info)) {
                    $configs[$counter++] = $info;
                }
            }
        }

        return $configs;
    }

    /**
     * Get the information about a pagepart section configuration file.
     *
     * @param string $dir
     * @param string $file
     *
     * @return array|null
     */
    protected function getTemplateInfo($dir, $file)
    {
        $info = null;

        try {
            $data = Yaml::parse(file_get_contents($dir . $file));

            if (array_key_exists('kunstmaan_page_part', $data)) {
                //Get rid of the bundle config lines
                $data = array_values(array_values(array_values($data)[0])[0])[0];
            }

            // Parse contexts
            $contexts = [];
            foreach ($data['rows'] as $row) {
                foreach ($row['regions'] as $region) {
                    $contexts[] = $region['name'];
                }
            }
            $info = [
                'name' => $data['name'],
                'contexts' => $contexts,
                'file' => $file,
            ];
        } catch (ParseException $e) {

Consider adding a comment why this CATCH block is empty.

        }

        return $info;
    }

    /**
     * Get an array with the available page templates.
     *
     * @param BundleInterface $bundle The bundle for which we want to get the template configurations
     *
     * @return array
     */
    protected function getAvailablePages(BundleInterface $bundle)
    {
        $pages = [];
        $counter = 1;

        // Get the available pages from disc
        $dir = $bundle->getPath() . '/Entity/Pages/';
        if (file_exists($dir) && is_dir($dir)) {
            $finder = new Finder();
            $finder->files()->in($dir)->depth('== 0');
            foreach ($finder as $file) {
                $pages[$counter++] = [
                    'name' => substr($file->getFileName(), 0, strlen($file->getFileName()) - 4),
                    'path' => $file->getPathName(),
                ];
            }
        }

        return $pages;
    }

    /**
     * Check that it is possible to generate the behat tests.
     *
     * @return bool
     */
    protected function canGenerateBehatTests(BundleInterface $bundle)
    {
        $behatFile = dirname($this->getContainer()->getParameter('kernel.root_dir') . '/') . '/behat.yml';
        $pagePartContext = $bundle->getPath() . '/Features/Context/PagePartContext.php';
        $behatTestPage = $bundle->getPath() . '/Entity/Pages/BehatTestPage.php';

        // Make sure behat is configured and the PagePartContext and BehatTestPage exits
        return file_exists($behatFile) && file_exists($pagePartContext) && file_exists($behatTestPage);
    }

    /**
     * @internal
     */
    protected function isSymfony4()
    {
        return Kernel::VERSION_ID >= 40000;
    }
}