www.aleph1.co.uk Git - yaffs-website/blob - web/core/modules/workflows/src/Form/WorkflowTransitionDeleteForm.php

   1 <?php
   2
   3 namespace Drupal\workflows\Form;
   4
   5 use Drupal\workflows\WorkflowInterface;
   6 use Drupal\Core\Form\ConfirmFormBase;
   7 use Drupal\Core\Form\FormStateInterface;
   8 use Symfony\Component\HttpKernel\Exception\NotFoundHttpException;
   9
  10 /**
  11  * Builds the form to delete transitions from Workflow entities.
  12  */
  13 class WorkflowTransitionDeleteForm extends ConfirmFormBase {
  14
  15   /**
  16    * The workflow entity the transition being deleted belongs to.
  17    *
  18    * @var \Drupal\workflows\WorkflowInterface
  19    */
  20   protected $workflow;
  21
  22   /**
  23    * The workflow transition being deleted.
  24    *
  25    * @var \Drupal\workflows\TransitionInterface
  26    */
  27   protected $transition;
  28
  29   /**
  30    * The transition being deleted.
  31    *
  32    * @var string
  33    */
  34   protected $transitionId;
  35
  36   /**
  37    * {@inheritdoc}
  38    */
  39   public function getFormId() {
  40     return 'workflow_transition_delete_form';
  41   }
  42
  43   /**
  44    * {@inheritdoc}
  45    */
  46   public function getQuestion() {
  47     return $this->t('Are you sure you want to delete %transition from %workflow?', ['%transition' => $this->transition->label(), '%workflow' => $this->workflow->label()]);
  48   }
  49
  50   /**
  51    * {@inheritdoc}
  52    */
  53   public function getCancelUrl() {
  54     return $this->workflow->toUrl();
  55   }
  56
  57   /**
  58    * {@inheritdoc}
  59    */
  60   public function getConfirmText() {
  61     return $this->t('Delete');
  62   }
  63
  64   /**
  65    * Form constructor.
  66    *
  67    * @param array $form
  68    *   An associative array containing the structure of the form.
  69    * @param \Drupal\Core\Form\FormStateInterface $form_state
  70    *   The current state of the form.
  71    * @param \Drupal\workflows\WorkflowInterface $workflow
  72    *   The workflow entity being edited.
  73    * @param string|null $workflow_transition
  74    *   The workflow transition being deleted.
  75    *
  76    * @return array
  77    *   The form structure.
  78    */
  79   public function buildForm(array $form, FormStateInterface $form_state, WorkflowInterface $workflow = NULL, $workflow_transition = NULL) {
  80     try {
  81       $this->transition = $workflow->getTypePlugin()->getTransition($workflow_transition);
  82     }
  83     catch (\InvalidArgumentException $e) {
  84       throw new NotFoundHttpException();
  85     }
  86     $this->workflow = $workflow;
  87     return parent::buildForm($form, $form_state);
  88   }
  89
  90   /**
  91    * {@inheritdoc}
  92    */
  93   public function submitForm(array &$form, FormStateInterface $form_state) {
  94     $this->workflow
  95       ->getTypePlugin()
  96       ->deleteTransition($this->transition->id());
  97     $this->workflow->save();
  98
  99     drupal_set_message($this->t('%transition transition deleted.', ['%transition' => $this->transition->label()]));
 100     $form_state->setRedirectUrl($this->getCancelUrl());
 101   }
 102
 103 }