Refactor QuickFormInstanceManager to return config entities.

modules/core/quick/src/Controller/QuickFormController.php

@@ -48,7 +48,7 @@ class QuickFormController extends ControllerBase {
    *   Returns a render array.
    */
   public function index(): array {
-    /** @var \Drupal\farm_quick\Plugin\QuickForm\QuickFormInterface[] $quick_forms */
+    /** @var \Drupal\farm_quick\Entity\QuickFormInstanceInterface[] $quick_forms */
     $quick_forms = $this->quickFormInstanceManager->getInstances();
     $items = [];
     foreach ($quick_forms as $id => $quick_form) {

modules/core/quick/src/Form/QuickForm.php

@@ -63,7 +63,7 @@ class QuickForm extends FormBase implements BaseFormIdInterface {
     $form_id = $this->getBaseFormId();
     $id = $this->getRouteMatch()->getParameter('id');
     if (!is_null($id)) {
-      $form_id .= '_' . $this->quickFormInstanceManager->createInstance($id)->getFormId();
+      $form_id .= '_' . $this->quickFormInstanceManager->createInstance($id)->getPlugin()->getFormId();
     }
     return $form_id;
   }
@@ -93,7 +93,7 @@ class QuickForm extends FormBase implements BaseFormIdInterface {
    *   The access result.
    */
   public function access(AccountInterface $account, string $id) {
-    return $this->quickFormInstanceManager->createInstance($id)->access($account);
+    return $this->quickFormInstanceManager->createInstance($id)->getPlugin()->access($account);
   }
 
   /**
@@ -105,9 +105,7 @@ class QuickForm extends FormBase implements BaseFormIdInterface {
     $this->quickFormId = $id;
 
     // Load the quick form.
-    /** @var \Drupal\farm_quick\Plugin\QuickForm\QuickFormInterface $quick_form */
-    $quick_form = $this->quickFormInstanceManager->createInstance($id);
-    $form = $quick_form->buildForm($form, $form_state);
+    $form = $this->quickFormInstanceManager->createInstance($id)->getPlugin()->buildForm($form, $form_state);
 
     // Add a submit button, if one wasn't provided.
     if (empty($form['actions']['submit'])) {
@@ -128,14 +126,14 @@ class QuickForm extends FormBase implements BaseFormIdInterface {
    * {@inheritdoc}
    */
   public function validateForm(array &$form, FormStateInterface $form_state) {
-    $this->quickFormInstanceManager->createInstance($this->quickFormId)->validateForm($form, $form_state);
+    $this->quickFormInstanceManager->createInstance($this->quickFormId)->getPlugin()->validateForm($form, $form_state);
   }
 
   /**
    * {@inheritdoc}
    */
   public function submitForm(array &$form, FormStateInterface $form_state) {
-    $this->quickFormInstanceManager->createInstance($this->quickFormId)->submitForm($form, $form_state);
+    $this->quickFormInstanceManager->createInstance($this->quickFormId)->getPlugin()->submitForm($form, $form_state);
   }
 
 }

modules/core/quick/src/Plugin/Derivative/QuickFormMenuLink.php

@@ -45,7 +45,7 @@ class QuickFormMenuLink extends DeriverBase implements ContainerDeriverInterface
     $links = [];
 
     // Load quick forms.
-    /** @var \Drupal\farm_quick\Plugin\QuickForm\QuickFormInterface[] $quick_forms */
+    /** @var \Drupal\farm_quick\Entity\QuickFormInstanceInterface[] $quick_forms */
     $quick_forms = $this->quickFormInstanceManager->getInstances();
 
     // Add a top level menu parent.

modules/core/quick/src/QuickFormInstanceManager.php

@@ -3,6 +3,7 @@
 namespace Drupal\farm_quick;
 
 use Drupal\Core\Entity\EntityTypeManagerInterface;
+use Drupal\farm_quick\Entity\QuickFormInstance;
 use Symfony\Component\DependencyInjection\ContainerInterface;
 
 /**
@@ -56,8 +57,17 @@ class QuickFormInstanceManager implements QuickFormInstanceManagerInterface {
     // Iterate through quick form plugin definitions.
     foreach ($this->quickFormPluginManager->getDefinitions() as $plugin) {
 
-      // Instantiate a quick form for the plugin.
-      $instances[$plugin['id']] = $this->quickFormPluginManager->createInstance($plugin['id']);
+      // Load quick form instance configuration entities for this plugin.
+      $entities = $this->entityTypeManager->getStorage('quick_form')->loadByProperties(['plugin' => $plugin['id']]);
+      if (!empty($entities)) {
+        $instances += $entities;
+      }
+
+      // If there are no config entities, create a new (unsaved) config entity
+      // with default values from the plugin.
+      else {
+        $instances[$plugin['id']] = QuickFormInstance::create(['id' => $plugin['id'], 'plugin' => $plugin['id']]);
+      }
     }
 
     return $instances;
@@ -67,7 +77,16 @@ class QuickFormInstanceManager implements QuickFormInstanceManagerInterface {
    * {@inheritdoc}
    */
   public function createInstance($id) {
-    return $this->quickFormPluginManager->createInstance($id);
+
+    // First attempt to load a quick form instance config entity.
+    $entity = $this->entityTypeManager->getStorage('quick_form')->load($id);
+    if (!empty($entity)) {
+      return $entity;
+    }
+
+    // Otherwise, create a new (unsaved) config entity with default values from
+    // the plugin.
+    return QuickFormInstance::create(['id' => $id, 'plugin' => $id]);
   }
 
 }

modules/core/quick/src/QuickFormInstanceManagerInterface.php

@@ -10,10 +10,10 @@ interface QuickFormInstanceManagerInterface {
   /**
    * Get all quick form instances.
    *
-   * @return array
+   * @return \Drupal\farm_quick\Entity\QuickFormInstanceInterface[]
    *   An array of quick form instances.
    */
-  public function getInstances(): array;
+  public function getInstances();
 
   /**
    * Create an instance of a quick form.
@@ -21,7 +21,7 @@ interface QuickFormInstanceManagerInterface {
    * @param string $id
    *   The quick form ID.
    *
-   * @return \Drupal\farm_quick\Plugin\QuickForm\QuickFormInterface|null
+   * @return \Drupal\farm_quick\Entity\QuickFormInstanceInterface|null
    *   Returns an instantiated quick form object.
    */
   public function createInstance($id);

modules/core/quick/src/Routing/QuickFormRoutes.php

@@ -48,7 +48,7 @@ class QuickFormRoutes implements ContainerInjectionInterface {
    */
   public function routes(): RouteCollection {
     $route_collection = new RouteCollection();
-    /** @var \Drupal\farm_quick\Plugin\QuickForm\QuickFormInterface[] $quick_forms */
+    /** @var \Drupal\farm_quick\Entity\QuickFormInstanceInterface[] $quick_forms */
     $quick_forms = $this->quickFormInstanceManager->getInstances();
     foreach ($quick_forms as $id => $quick_form) {
       $route = new Route(

modules/core/quick/tests/src/Kernel/QuickFormTest.php

@@ -62,7 +62,7 @@ class QuickFormTest extends KernelTestBase {
   public function testQuickFormDiscovery() {
 
     // Load quick forms.
-    /** @var \Drupal\farm_quick\Plugin\QuickForm\QuickFormInterface[] $quick_forms */
+    /** @var \Drupal\farm_quick\Entity\QuickFormInstanceInterface[] $quick_forms */
     $quick_forms = $this->quickFormInstanceManager->getInstances();
 
     // Confirm that one quick form was discovered.
@@ -72,7 +72,7 @@ class QuickFormTest extends KernelTestBase {
     $this->assertEquals('Test quick form', $quick_forms['test']->getLabel());
     $this->assertEquals('Test quick form description.', $quick_forms['test']->getDescription());
     $this->assertEquals('Test quick form help text.', $quick_forms['test']->getHelpText());
-    $this->assertEquals(['create test log'], $quick_forms['test']->getPermissions());
+    $this->assertEquals(['create test log'], $quick_forms['test']->getPlugin()->getPermissions());
   }
 
   /**