Version 1

[yaffs-website] / web / core / modules / workflows / src / Form / WorkflowTransitionEditForm.php

diff --git a/web/core/modules/workflows/src/Form/WorkflowTransitionEditForm.php b/web/core/modules/workflows/src/Form/WorkflowTransitionEditForm.php
new file mode 100644 (file)
index 0000000..5bbabae
--- /dev/null
+++ b/web/core/modules/workflows/src/Form/WorkflowTransitionEditForm.php
@@ -0,0 +1,178 @@
+<?php
+
+namespace Drupal\workflows\Form;
+
+use Drupal\Core\Entity\EntityForm;
+use Drupal\Core\Entity\EntityInterface;
+use Drupal\Core\Form\FormStateInterface;
+use Drupal\Core\Url;
+use Drupal\workflows\State;
+
+/**
+ * Class WorkflowTransitionEditForm.
+ */
+class WorkflowTransitionEditForm extends EntityForm {
+
+  /**
+   * The ID of the transition that is being edited.
+   *
+   * @var string
+   */
+  protected $transitionId;
+
+  /**
+   * {@inheritdoc}
+   */
+  public function getFormId() {
+    return 'workflow_transition_edit_form';
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function buildForm(array $form, FormStateInterface $form_state, $workflow_transition = NULL) {
+    $this->transitionId = $workflow_transition;
+    return parent::buildForm($form, $form_state);
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function form(array $form, FormStateInterface $form_state) {
+    $form = parent::form($form, $form_state);
+
+    /* @var \Drupal\workflows\WorkflowInterface $workflow */
+    $workflow = $this->getEntity();
+    $transition = $workflow->getTransition($this->transitionId);
+    $form['label'] = [
+      '#type' => 'textfield',
+      '#title' => $this->t('Label'),
+      '#maxlength' => 255,
+      '#default_value' => $transition->label(),
+      '#description' => $this->t('Label for the transition.'),
+      '#required' => TRUE,
+    ];
+
+    $form['id'] = [
+      '#type' => 'value',
+      '#value' => $this->transitionId,
+    ];
+
+    // @todo https://www.drupal.org/node/2830584 Add some ajax to ensure that
+    //   only valid transitions are selectable.
+    $states = array_map([State::class, 'labelCallback'], $workflow->getStates());
+    $form['from'] = [
+      '#type' => 'checkboxes',
+      '#title' => $this->t('From'),
+      '#required' => TRUE,
+      '#default_value' => array_keys($transition->from()),
+      '#options' => $states,
+    ];
+    $form['to'] = [
+      '#type' => 'radios',
+      '#title' => $this->t('To'),
+      '#required' => TRUE,
+      '#default_value' => $transition->to()->id(),
+      '#options' => $states,
+      '#disabled' => TRUE,
+    ];
+
+    // Add additional form fields from the workflow type plugin.
+    $form['type_settings'] = [
+      $workflow->get('type') => $workflow->getTypePlugin()->buildTransitionConfigurationForm($form_state, $workflow, $transition),
+      '#tree' => TRUE,
+    ];
+
+    return $form;
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function validateForm(array &$form, FormStateInterface $form_state) {
+    /** @var \Drupal\workflows\WorkflowInterface $workflow */
+    $workflow = $this->getEntity();
+    $values = $form_state->getValues();
+    foreach (array_filter($values['from']) as $from_state_id) {
+      if ($workflow->hasTransitionFromStateToState($from_state_id, $values['to'])) {
+        $transition = $workflow->getTransitionFromStateToState($from_state_id, $values['to']);
+        if ($transition->id() !== $values['id']) {
+          $form_state->setErrorByName('from][' . $from_state_id, $this->t('The transition from %from to %to already exists.', [
+            '%from' => $workflow->getState($from_state_id)->label(),
+            '%to' => $workflow->getState($values['to'])->label(),
+          ]));
+        }
+      }
+    }
+  }
+
+  /**
+   * Copies top-level form values to entity properties
+   *
+   * This form can only change values for a state, which is part of workflow.
+   *
+   * @param \Drupal\Core\Entity\EntityInterface $entity
+   *   The entity the current form should operate upon.
+   * @param array $form
+   *   A nested array of form elements comprising the form.
+   * @param \Drupal\Core\Form\FormStateInterface $form_state
+   *   The current state of the form.
+   */
+  protected function copyFormValuesToEntity(EntityInterface $entity, array $form, FormStateInterface $form_state) {
+    if (!$form_state->isValidationComplete()) {
+      // Only do something once form validation is complete.
+      return;
+    }
+    /** @var \Drupal\workflows\WorkflowInterface $entity */
+    $values = $form_state->getValues();
+    $form_state->set('created_transition', FALSE);
+    $entity->setTransitionLabel($values['id'], $values['label']);
+    $entity->setTransitionFromStates($values['id'], array_filter($values['from']));
+    if (isset($values['type_settings'])) {
+      $configuration = $entity->getTypePlugin()->getConfiguration();
+      $configuration['transitions'][$values['id']] = $values['type_settings'][$entity->getTypePlugin()->getPluginId()];
+      $entity->set('type_settings', $configuration);
+    }
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function save(array $form, FormStateInterface $form_state) {
+    /** @var \Drupal\workflows\WorkflowInterface $workflow */
+    $workflow = $this->entity;
+    $workflow->save();
+    drupal_set_message($this->t('Saved %label transition.', [
+      '%label' => $workflow->getTransition($this->transitionId)->label(),
+    ]));
+    $form_state->setRedirectUrl($workflow->toUrl('edit-form'));
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  protected function actions(array $form, FormStateInterface $form_state) {
+    $actions['submit'] = [
+      '#type' => 'submit',
+      '#value' => $this->t('Save'),
+      '#submit' => ['::submitForm', '::save'],
+    ];
+
+    $actions['delete'] = [
+      '#type' => 'link',
+      '#title' => $this->t('Delete'),
+      // Deleting a transition is editing a workflow.
+      '#access' => $this->entity->access('edit'),
+      '#attributes' => [
+        'class' => ['button', 'button--danger'],
+      ],
+      '#url' => Url::fromRoute('entity.workflow.delete_transition_form', [
+        'workflow' => $this->entity->id(),
+        'workflow_transition' => $this->transitionId
+      ])
+    ];
+
+    return $actions;
+  }
+
+}