ILTDeleteForm.php in Opigno Instructor-led Trainings 3.x

Namespace

Drupal\opigno_ilt\Form

File

src/Form/ILTDeleteForm.php

<?php

namespace Drupal\opigno_ilt\Form;

use Drupal\Core\Entity\ContentEntityConfirmFormBase;
use Drupal\Core\Form\FormStateInterface;
use Drupal\Core\Url;
use Drupal\opigno_ilt\Entity\ILT;
use Drupal\Core\Form\ConfirmFormHelper;

/**
 * Provides a form for deleting a opigno_ilt entity.
 */
class ILTDeleteForm extends ContentEntityConfirmFormBase {
  private $hasResults;
  private $hasTraining;

  /**
   * Checks if ILT has results.
   */
  private function _hasResults() {
    $ilt = ILT::load($this->entity
      ->id());
    if ($ilt
      ->getResultsIds()) {
      return TRUE;
    }
    return FALSE;
  }

  /**
   * Checks if ILT has parent training.
   */
  private function _hasTraining() {
    $training = $this->entity
      ->getTrainingId();
    return (bool) $training;
  }

  /**
   * {@inheritdoc}
   */
  public function buildForm(array $form, FormStateInterface $form_state) {
    $this->hasResults = $this
      ->_hasResults();
    $this->hasTraining = $this
      ->_hasTraining();
    $form = parent::buildForm($form, $form_state);
    return $form;
  }

  /**
   * {@inheritdoc}
   */
  public function getQuestion() {
    return $this
      ->t('Are you sure you want to delete the %ilt Instructor-Led Training?', [
      '%ilt' => $this->entity
        ->label(),
    ]);
  }

  /**
   * {@inheritdoc}
   */
  public function getDescription() {
    if ($this->hasResults) {
      return $this
        ->t('There are some results for this ILT, and it cannot consequently be deleted in order to keep the users achievements');
    }
    if ($this->hasTraining) {
      return $this
        ->t('This ILT is being used and it needs to be removed from the training(s) using it before being able to delete it.');
    }
    return $this
      ->t('This action cannot be undone.');
  }

  /**
   * {@inheritdoc}
   */
  public function getConfirmText() {
    return $this
      ->t('Delete');
  }

  /**
   * {@inheritdoc}
   */
  public function getCancelUrl() {
    return Url::fromRoute('entity.opigno_ilt.canonical', [
      'opigno_ilt' => $this->entity
        ->id(),
    ]);
  }

  /**
   * {@inheritdoc}
   */
  public function submitForm(array &$form, FormStateInterface $form_state) {
    $this->entity
      ->delete();
    $this
      ->messenger()
      ->addMessage($this
      ->t('The Instructor-Led Training %ilt has been deleted.', [
      '%ilt' => $this->entity
        ->label(),
    ]));
  }

  /**
   * {@inheritdoc}
   */
  protected function actions(array $form, FormStateInterface $form_state) {
    $attributes = [];
    if ($this->hasResults || $this->hasTraining) {
      $attributes = [
        'disabled' => 'disabled',
      ];
    }
    return [
      'submit' => [
        '#type' => 'submit',
        '#attributes' => $attributes,
        '#value' => $this
          ->getConfirmText(),
        '#submit' => [
          [
            $this,
            'submitForm',
          ],
        ],
      ],
      'cancel' => ConfirmFormHelper::buildCancelLink($this, $this
        ->getRequest()),
    ];
  }

}

Classes

Name	Description
ILTDeleteForm	Provides a form for deleting a opigno_ilt entity.