TaxonomyImporterForm.php in Hierarchical Taxonomy Import 8

Namespace

Drupal\hierarchical_taxonomy_importer\Form

File

src/Form/TaxonomyImporterForm.php

<?php

namespace Drupal\hierarchical_taxonomy_importer\Form;

use Drupal\Core\Form\FormBase;
use Drupal\Core\Form\FormStateInterface;
use Symfony\Component\DependencyInjection\ContainerInterface;
use Drupal\Core\Entity\EntityTypeManager;
use Drupal\hierarchical_taxonomy_importer\services\ImporterService;
use Drupal\taxonomy\Entity\Vocabulary;

/**
 * Class TaxonomyImporterForm.
 */
class TaxonomyImporterForm extends FormBase {

  /**
   * Drupal\Core\Entity\EntityTypeManager definition.
   *
   * @var \Drupal\Core\Entity\EntityTypeManager
   */
  protected $entityTypeManager;

  /**
   * Drupal\hierarchical_taxonomy_importer\services\ImporterService definition.
   *
   * @var \Drupal\hierarchical_taxonomy_importer\services\ImporterService
   */
  protected $hierarchicalTaxonomyImporter;

  /**
   * Constructs a new TaxonomyImporterForm object.
   */
  public function __construct(EntityTypeManager $entity_type_manager, ImporterService $hierarchical_taxonomy_importer_importer) {
    $this->entityTypeManager = $entity_type_manager;
    $this->hierarchicalTaxonomyImporter = $hierarchical_taxonomy_importer_importer;
  }

  /**
   *
   */
  public static function create(ContainerInterface $container) {
    return new static($container
      ->get('entity_type.manager'), $container
      ->get('hierarchical_taxonomy_importer.importer'));
  }

  /**
   * {@inheritdoc}
   */
  public function getFormId() {
    return 'taxonomy_importer_form';
  }

  /**
   * {@inheritdoc}
   */
  public function buildForm(array $form, FormStateInterface $form_state) {
    $output = [
      [
        'Honda',
        '',
        '',
      ],
      [
        '',
        'Honda',
        '',
      ],
      [
        '',
        '',
        '100',
      ],
      [
        '',
        '',
        '200',
      ],
      [
        '',
        '',
        '300',
      ],
      [
        '',
        '',
        '400',
      ],
      [
        '',
        '',
        '500',
      ],
      [
        '',
        'Londa',
        '',
      ],
      [
        '',
        '',
        '600',
      ],
      [
        '',
        '',
        '700',
      ],
      [
        '',
        '',
        '800',
      ],
      [
        '',
        '',
        '900',
      ],
    ];

    // $this->hierarchicalTaxonomyImporter->import('new_test', $output);.
    $form['vocabulary'] = [
      '#type' => 'select',
      '#title' => $this
        ->t('Vocabularies'),
      '#description' => $this
        ->t('Select a vocabulary to import taxonomies terms from CSV file.'),
      '#options' => $this
        ->getVocabularies(),
      '#required' => TRUE,
      '#size' => 1,
    ];
    $form['csv_file'] = [
      '#type' => 'file',
      '#title' => $this
        ->t('CSV File'),
      '#description' => $this
        ->t('Upload a CSV file with taxonomy information.'),
    ];
    $form['submit'] = [
      '#type' => 'submit',
      '#value' => $this
        ->t('Submit'),
    ];
    return $form;
  }

  /**
   * {@inheritdoc}
   */
  public function validateForm(array &$form, FormStateInterface $form_state) {
    parent::validateForm($form, $form_state);

    // Getting file array.
    $files = $this
      ->getRequest()->files
      ->get('files', []);

    // Checking if file is uploaded.
    if (!empty($files['csv_file'])) {
      $file_upload = $files['csv_file'];
      if ($file_upload
        ->isValid()) {
        $form_state
          ->setValue('csv_file', $file_upload
          ->getRealPath());
        return;
      }
    }
    $form_state
      ->setErrorByName('csv_file', $this
      ->t('The file could not be uploaded.'));
  }

  /**
   * {@inheritdoc}
   */
  public function submitForm(array &$form, FormStateInterface $form_state) {
    $csv_file_path = $form_state
      ->getValue('csv_file');
    if (($handle = fopen($csv_file_path, "r")) !== FALSE) {

      // taxonomy_' . time();
      $vid = $form_state
        ->getValue('vocabulary');
      $output = [];
      while (($data = fgetcsv($handle, 1000, ",")) !== FALSE) {
        $output[] = $data;
      }
      $result = $this->hierarchicalTaxonomyImporter
        ->import($vid, $output);
    }
    drupal_set_message(t('All terms have been imported successfully.'));
  }

  /**
   * This method returns the list of existing vocabularies.
   *
   * @return mixed
   *   List of existing Vocabularies in an associative array's form.
   */
  public function getVocabularies() {
    $output = [];

    // Loading existing vocabularies.
    $vocabularies = Vocabulary::loadMultiple();

    // If vocabularies are not empty then load them to an array one by one
    // Vocabulary ID would be used as offset and label as value of array on that
    // offset.
    if (!empty($vocabularies)) {

      // Traversal of vocabularies is taking place and preparing an options array.
      foreach ($vocabularies as $vocabulary) {
        $output[$vocabulary
          ->id()] = $vocabulary
          ->get('name');
      }
    }

    // Return the output back to the form.
    return $output;
  }

}

Classes

Name	Description
TaxonomyImporterForm	Class TaxonomyImporterForm.