MultipleNodeExportForm.php in Node export 8

Namespace

Drupal\node_Export\Form

File

src/Form/MultipleNodeExportForm.php

<?php

namespace Drupal\node_Export\Form;

use Drupal\Core\Form\FormBase;
use Drupal\Core\Form\FormStateInterface;

/**
 * Provides a Node Export form.
 */
class MultipleNodeExportForm extends FormBase {

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

  /**
   * {@inheritdoc}
   */
  public function buildForm(array $form, FormStateInterface $form_state) {

    // Loads all the content typess in the drupal site.
    $contentTypes = \Drupal::service('entity_type.manager')
      ->getStorage('node_type')
      ->loadMultiple();
    $contentTypesList = [];
    foreach ($contentTypes as $contentType) {
      $contentTypesList[$contentType
        ->id()] = $contentType
        ->label();
    }
    $form['ct'] = [
      '#markup' => $this
        ->t('Select the content type of the node you want to export : '),
    ];
    $form['export_type'] = [
      '#type' => 'select',
      '#title' => $this
        ->t('Select Type'),
      '#options' => $contentTypesList,
    ];
    $form['submit'] = [
      '#type' => 'submit',
      '#value' => $this
        ->t('Export'),
    ];
    return $form;
  }

  /**
   * {@inheritdoc}
   */
  public function submitForm(array &$form, FormStateInterface $form_state) {
    $export_type = $form_state
      ->getValue('export_type');

    // Loads all the node of selected content type.
    $nids = \Drupal::entityQuery('node')
      ->condition('type', $export_type)
      ->execute();
    $batch = [
      'title' => $this
        ->t('Generating Export Code...'),
      'operations' => [],
      'init_message' => $this
        ->t('Exporting '),
      'progress_message' => $this
        ->t('Processed @current out of @total.'),
      'error_message' => $this
        ->t('An error occurred during processing'),
      'finished' => '\\Drupal\\node_export\\NodeExport::nodeExportFinishedCallback',
    ];
    if (!empty($nids)) {
      foreach ($nids as $nid) {
        $batch['operations'][] = [
          '\\Drupal\\node_export\\NodeExport::nodeExport',
          [
            $nid,
          ],
        ];
      }
      batch_set($batch);
      $this
        ->messenger()
        ->addStatus($this
        ->t('The File with export code has been saved in your public directory'));
    }
    else {
      $this
        ->messenger()
        ->addError($this
        ->t('There are no nodes to export.'));
    }
  }

}

Classes

Name	Description
MultipleNodeExportForm	Provides a Node Export form.