aleph1.co.uk Git - yaffs-website/blob - web/core/modules/workflows/src/Form/WorkflowStateDeleteForm.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 states from Workflow entities.
  12  */
  13 class WorkflowStateDeleteForm extends ConfirmFormBase {
  14
  15   /**
  16    * The workflow entity the state being deleted belongs to.
  17    *
  18    * @var \Drupal\workflows\WorkflowInterface
  19    */
  20   protected $workflow;
  21
  22   /**
  23    * The state being deleted.
  24    *
  25    * @var string
  26    */
  27   protected $stateId;
  28
  29   /**
  30    * {@inheritdoc}
  31    */
  32   public function getFormId() {
  33     return 'workflow_state_delete_form';
  34   }
  35
  36   /**
  37    * {@inheritdoc}
  38    */
  39   public function getQuestion() {
  40     return $this->t('Are you sure you want to delete %state from %workflow?', ['%state' => $this->workflow->getTypePlugin()->getState($this->stateId)->label(), '%workflow' => $this->workflow->label()]);
  41   }
  42
  43   /**
  44    * {@inheritdoc}
  45    */
  46   public function getCancelUrl() {
  47     return $this->workflow->toUrl();
  48   }
  49
  50   /**
  51    * {@inheritdoc}
  52    */
  53   public function getConfirmText() {
  54     return $this->t('Delete');
  55   }
  56
  57   /**
  58    * Form constructor.
  59    *
  60    * @param array $form
  61    *   An associative array containing the structure of the form.
  62    * @param \Drupal\Core\Form\FormStateInterface $form_state
  63    *   The current state of the form.
  64    * @param \Drupal\workflows\WorkflowInterface $workflow
  65    *   The workflow entity being edited.
  66    * @param string|null $workflow_state
  67    *   The workflow state being deleted.
  68    *
  69    * @return array
  70    *   The form structure.
  71    */
  72   public function buildForm(array $form, FormStateInterface $form_state, WorkflowInterface $workflow = NULL, $workflow_state = NULL) {
  73     if (!$workflow->getTypePlugin()->hasState($workflow_state)) {
  74       throw new NotFoundHttpException();
  75     }
  76     $this->workflow = $workflow;
  77     $this->stateId = $workflow_state;
  78
  79     if ($this->workflow->getTypePlugin()->workflowStateHasData($this->workflow, $this->workflow->getTypePlugin()->getState($this->stateId))) {
  80       $form['#title'] = $this->getQuestion();
  81       $form['description'] = ['#markup' => $this->t('This workflow state is in use. You cannot remove this workflow state until you have removed all content using it.')];
  82       return $form;
  83     }
  84
  85     return parent::buildForm($form, $form_state);
  86   }
  87
  88   /**
  89    * {@inheritdoc}
  90    */
  91   public function submitForm(array &$form, FormStateInterface $form_state) {
  92
  93     $workflow_label = $this->workflow->getTypePlugin()->getState($this->stateId)->label();
  94     $this->workflow
  95       ->getTypePlugin()
  96       ->deleteState($this->stateId);
  97     $this->workflow->save();
  98
  99     drupal_set_message($this->t(
 100       'State %label deleted.',
 101       ['%label' => $workflow_label]
 102     ));
 103
 104     $form_state->setRedirectUrl($this->getCancelUrl());
 105   }
 106
 107 }