CareerjobsForm.php

// Drupal 9 Custom Moduel Form file field with upload, validate and move and save.

<?php


namespace Drupal\careerjobs\Form;


use Drupal\Core\Database\Database;
use Drupal\Core\Entity\EntityStorageException;
use Drupal\Core\Form\FormStateInterface;
use Drupal\Core\Form\FormBase;
use Drupal\file\Entity\File;

class CareerjobsForm extends FormBase {

  protected static array $file_ext = ['pdf doc docx'];

  protected static int $file_size = 2048000000;

  /**
   * @inheritDoc
   */
  public function getFormId(): string {
    return 'careerjobs_form';
  }

  /**
   * @inheritDoc
   */
  public function buildForm(array $form, FormStateInterface $form_state): array {
    $form['#attributes']['enctype'] = 'multipart/form-data';
    /** @var \Drupal\node\Entity\Node $node */
    $node = \Drupal::routeMatch()->getParameter('node');
    $nid = 0;
    if ($node instanceof \Drupal\node\NodeInterface) {
      $nid = $node->id();
    }
    $form['name'] = [
      '#title' => t('Name'),
      '#type' => 'textfield',
      '#size' => 25,
      '#description' => t('Your name.'),
      '#required' => TRUE,
    ];
    $form['email'] = [
      '#title' => t('Email Address'),
      '#type' => 'email',
      '#size' => 25,
      '#description' => t('Your email address for us to contact.'),
      '#required' => TRUE,
    ];
    $form['phone'] = [
      '#title' => t('Contact Number'),
      '#type' => 'tel',
      '#size' => 25,
      '#description' => t('Your contact phone number.'),
      '#required' => TRUE,
      '#pattern' => '[+]?[1-9][0-9]{9,14}',
    ];
    $form['cover_letter'] = [
      '#title' => t('Cover Letter'),
      '#type' => 'textarea',
      '#maxlength' => 5000,
      '#rows' => 5,
      '#description' => t('Write something about yourself.'),
      '#required' => FALSE,
    ];
    $form['resume_upload'] = [
      '#title' => t('Upload your Resume file'),
      '#type' => 'managed_file',
      '#upload_location' => 'public://careerjobs/resume/',
      '#multiple' => FALSE,
      '#description' => t('Allowed extensions: pdf doc docx. \\n Filesize <= 2MB'),
      '#upload_validators' => [
        'file_validate_extensions' => self::$file_ext,
        'file_validate_size' => [self::$file_size],
      ],
      '#required' => FALSE,
      '#validated' => TRUE,
      '#attached' => [
        'library' => [],
      ],
    ];
    $form['terms'] = [
      '#type' => 'checkbox',
      '#title' => t('By using this form you agree with the storage and handling of your data by this website.'),
      '#required' => TRUE,
    ];
    $form['submit'] = [
      '#type' => 'submit',
      '#value' => t('Apply'),
      '#attributes' => ['class' => ['btn btn-success']],
    ];
    $form['nid'] = [
      '#type' => 'hidden',
      '#value' => $nid,
    ];
    return $form;
  }

  /**
   * @inheritDoc
   */
  public function validateForm(array &$form, FormStateInterface $form_state):void {
    //EMAIL
    $terms = $form_state->getValue('terms');
    if (!$terms) {
      $form_state->setErrorByName('terms', $this->t('You must accept our terms first!'));
    }
    //    NAME
    $name_len = strlen($form_state->getValue('name'));
    if ($name_len < 3) {
      $form_state->setErrorByName('name', $this->t('Name must have at-least 3 characters long.'));
    }
    elseif ($name_len > 25) {
      $form_state->setErrorByName('name', $this->t('Name can\'t be more than 25 characters.'));
    }
    //EMAIL
    $value = $form_state->getValue('email');
    if ($value == !\Drupal::service('email.validator')->isValid($value)) {
      $form_state->setErrorByName('email', t('The email address %mail is not valid.', ['%mail' => $value]));
    }
    /** @var \Drupal\node\Entity\Node $node */
    $node = \Drupal::routeMatch()->getParameter('node');
    // Check if email already is set for this node
    $select = Database::getConnection()->select('fz__careerjobs', 'r');
    $select->fields('r', ['nid']);
    //    $select->condition('nid', $node->id());
    $select->condition('nid', 1);
    $select->condition('mail', $value);
    $results = $select->execute();
    if (!empty($results->fetchCol())) {
      // We found a row with this nid and email.
      $form_state->setErrorByName('email', t('The address %mail is already subscribed to this list.', ['%mail' => $value]));
    }
    // PHONE
    if (!preg_match("/^[+]?[1-9][0-9]{9,14}$/", $form_state->getValue('phone'))) {
      $form_state->setErrorByName('phone', $this->t('Invalid phone number.'));
    }
    // COVER_LETTER
    $cover_letter_len = strlen($form_state->getValue('cover_letter'));
    if ($cover_letter_len != NULL && $cover_letter_len < 10) {
      $form_state->setErrorByName('cover_letter', $this->t('Too small, please make it long.'));
    }
    elseif ($cover_letter_len != NULL && $cover_letter_len > 5000) {
      $form_state->setErrorByName('cover_letter', $this->t('Too long, please make it short.'));
    }
    //    FILE => Handled in buildForm itself.
  }

  /**
   * @inheritDoc
   */
  public function submitForm(array &$form, FormStateInterface $form_state):void {
    //    $this->messenger()->addMessage(t('Submit form.'));
    $files = $form_state->getValue('resume_upload');
    $file = reset($files);
//    dpm($file);
    $fileName = NULL;
    if (!empty($file)) {
      $fileName = $this->saveFile($file);
    }

    try {
      //    $this->messenger()->addMessage(t('The form is working.'));
      $user = \Drupal\user\Entity\User::load(\Drupal::currentUser()->id());
      \Drupal::database()->insert('fz__careerjobs')
        ->fields([
          'name' => $form_state->getValue('name'),
          'mail' => $form_state->getValue('email'),
          'phone' => $form_state->getValue('phone'),
          'cover_letter' => $form_state->getValue('cover_letter'),
          'resume' => $fileName,
          'nid' => $form_state->getValue('nid'),
          'uid' => $user->id(),
          'created' => time(),
        ])
        ->execute();
      $this->messenger()
        ->addMessage(t('Thankyou for your interest, you are on the list for this job.'));
    } catch (\Exception  $e) {
      $this->messenger()
        ->addError(t('Error occured while saving your data!'));
    }
  }

  private function saveFile($files) {
    try {
      $file = File::load(reset($files));
      $file->setTemporary();

      $ext = pathinfo($file->getFileUri(), PATHINFO_EXTENSION);
      $file_name = "CareerJob_" . (new \DateTime())->format("dmYHisv") . '.' . $ext;

      $file->setFilename($file_name);
      $file->save();
      $fx = \Drupal::service('file.repository')
        ->move($file, 'public://careerjobs/resume/' . $file_name);

      return \Drupal::service('file_url_generator')
        ->generateString($fx->getFileUri());
    } catch (EntityStorageException $e) {
      $this->messenger()
        ->addError(t('Error while processing your file on save. Please report us or try again later.'));
    }
    return NULL;
  }

}