Draft: fix: use EntityWorkflowStateForm for bank transaction state form

src/Form/BankTransactionStateForm.php

@@ -2,17 +2,17 @@
 
 namespace Drupal\banking\Form;
 
-use Drupal\Core\Form\FormBase;
+// use Drupal\Core\Form\FormBase;
 use Drupal\Core\Form\FormStateInterface;
 use Drupal\Core\Url;
 
+use Drupal\simple_workflows\Form\EntityWorkflowStateForm;
 use Drupal\banking\Entity\BankTransaction;
 
 /**
  * Class BankTransactionStateForm.
  */
-class BankTransactionStateForm extends FormBase {
-
+class BankTransactionStateForm extends EntityWorkflowStateForm {
 
   /**
    * {@inheritdoc}
@@ -21,50 +21,11 @@ class BankTransactionStateForm extends FormBase {
     return 'bank_transaction_state_form';
   }
 
-  /**
-   * {@inheritdoc}
-   */
-  public function buildForm(array $form, FormStateInterface $form_state) {
+  protected function getEntity() {
     $current_url = Url::fromRoute('<current>')->toString();
     $params = Url::fromUserInput($current_url)->getRouteParameters();
     $transaction = BankTransaction::load($params['bank_transaction']);
-    $form_state->getStorage()['transaction'] = $params['bank_transaction'];
-
-    $form['state'] = [
-      '#type' => 'select',
-      '#title' => $this->t('State'),
-      '#description' => $this->t('State of the transaction.'),
-      '#options' => [
-        'draft' => $this->t('draft'),
-        'manual' => $this->t('manual'),
-        'done' => $this->t('done'),
-      ],
-      '#default_value' => $transaction->getState(),
-      '#weight' => '0',
-    ];
-    $form['submit'] = [
-      '#type' => 'submit',
-      '#value' => $this->t('Submit'),
-    ];
-
-    return $form;
-  }
-
-  /**
-   * {@inheritdoc}
-   */
-  public function validateForm(array &$form, FormStateInterface $form_state) {
-    parent::validateForm($form, $form_state);
-  }
-
-  /**
-   * {@inheritdoc}
-   */
-  public function submitForm(array &$form, FormStateInterface $form_state) {
-    $transaction = BankTransaction::load($form_state->getStorage()['transaction']);
-    $transaction->setState($form_state->getValue('state'));
-    $transaction->save();
-    $form_state->setRedirect('entity.bank_transaction.canonical', ['bank_transaction' => $transaction->id()]);
+    return $transaction;
   }
 
 }