[crud] add step "delete"

CRUD/Controller/CRUDController.php

@@ -33,6 +33,7 @@ use Symfony\Component\Security\Core\Role\Role;
 use Symfony\Component\EventDispatcher\EventDispatcherInterface;
 use Chill\MainBundle\CRUD\Resolver\Resolver;
 use Chill\MainBundle\Pagination\PaginatorInterface;
+use Chill\MainBundle\CRUD\Form\CRUDDeleteEntityForm;
 
 /**
  * 
@@ -54,6 +55,93 @@ class CRUDController extends AbstractController
         $this->crudConfig = $config;
     }
     
+    public function delete(Request $request, $id)
+    {
+        return $this->deleteAction('delete', $request, $id);
+    }
+    
+    protected function deleteAction(string $action, Request $request, $id, $formClass = null)
+    {
+        $this->onPreDelete($action, $request, $id);
+        
+        $entity = $this->getEntity($action, $id, $request);
+        
+        $postFetch = $this->onPostFetchEntity($action, $request, $entity);
+        
+        if ($postFetch instanceof Response) {
+            return $postFetch;
+        }
+        
+        if (NULL === $entity) {
+            throw $this->createNotFoundException(sprintf("The %s with id %s "
+                . "is not found"), $this->getCrudName(), $id);
+        }
+        
+        $response = $this->checkACL($action, $entity);
+        if ($response instanceof Response) {
+            return $response;
+        }
+        
+        $response = $this->onPostCheckACL($action, $request, $entity);
+        if ($response instanceof Response) {
+            return $response;
+        }
+        
+        $form = $this->createFormFor($action, $entity, $formClass);
+        
+        $form->handleRequest($request);
+        
+        if ($form->isSubmitted() && $form->isValid()) {
+            $this->onFormValid($entity, $form, $request);
+            $em = $this->getDoctrine()->getManager();
+            
+            $this->onPreRemove($action, $entity, $form, $request);
+            $this->removeEntity($action, $entity, $form, $request);
+            $this->onPostRemove($action, $entity, $form, $request);
+            
+            $this->onPreFlush($action, $entity, $form, $request);
+            $em->flush();
+            $this->onPostFlush($action, $entity, $form, $request);
+            
+            $this->addFlash('success', $this->generateFormSuccessMessage($action, $entity));
+            
+            $result = $this->onBeforeRedirectAfterSubmission($action, $entity, $form, $request);
+            
+            if ($result instanceof Response) {
+                return $result;
+            }
+            
+            return $this->redirectToRoute('chill_crud_'.$this->getCrudName().'_view', ['id' => $entity->getId()]);
+            
+        } elseif ($form->isSubmitted()) {
+            $this->addFlash('error', $this->generateFormErrorMessage($action, $form));
+        }
+        
+        $defaultTemplateParameters = [
+            'form' => $form->createView(),
+            'entity' => $entity,
+            'crud_name' => $this->getCrudName()
+        ];
+        
+        return $this->render(
+            $this->getTemplateFor($action, $entity, $request), 
+            $this->generateTemplateParameter($action, $entity, $request, $defaultTemplateParameters)
+            );
+    }
+    
+    protected function onPreDelete(string $action, Request $request) {}
+    
+    protected function onPreRemove(string $action, $entity, FormInterface $form, Request $request) {}
+    
+    protected function onPostRemove(string $action, $entity, FormInterface $form, Request $request) {}
+    
+    protected function removeEntity(string $action, $entity, FormInterface $form, Request $request)
+    {
+        $this->getDoctrine()
+            ->getManager()
+            ->remove($entity);
+    }
+    
     /**
      * Base method called by index action.
      * 
@@ -673,10 +761,20 @@ class CRUDController extends AbstractController
      */
     protected function getFormClassFor($action)
     {
+        if ($action === 'delete') {
+            return $this->crudConfig[$action]['form_class']
+            ?? $this->getDefaultDeleteFormClass($action);
+        }
+        
         return $this->crudConfig[$action]['form_class']
             ?? $this->crudConfig['form_class'];
     }
     
+    protected function getDefaultDeleteFormClass($action)
+    {
+        return CRUDDeleteEntityForm::class;
+    }
+    
     /**
      * Create a form
      * 
@@ -748,6 +846,9 @@ class CRUDController extends AbstractController
             case 'new':
                 $msg = "crud.new.success";
                 break;
+            case 'delete':
+                $msg = "crud.delete.success";
+                break;
             default:
                 $msg = "crud.default.success";
         }
@@ -815,6 +916,8 @@ class CRUDController extends AbstractController
                 return '@ChillMain/CRUD/index.html.twig';
             case 'view':
                 return '@ChillMain/CRUD/view.html.twig';
+            case 'delete':
+                return '@ChillMain/CRUD/delete.html.twig';
             default:
                 throw new \LogicException("the view for action $action is not "
                     . "defined. You should override ".__METHOD__." to add this "