Removed the enablePreviewTemplate method from the Admin.

Moved the login to CRUDController and only set the edit template.

Admin/Admin.php

@@ -2516,12 +2516,4 @@ abstract class Admin implements AdminInterface, DomainObjectInterface
         return $this->labelTranslatorStrategy;
     }
     
-    /**
-     * Enables the preview template for the create/edit actions
-     */
-    public function enablePreviewTemplate()
-    {
-        $this->setTemplate('edit', $this->getTemplate('preview'));
-        $this->setTemplate('create', $this->getTemplate('preview'));
-    }
 }

Controller/CRUDController.php

@@ -280,7 +280,7 @@ class CRUDController extends Controller
                 $this->get('session')->setFlash('sonata_flash_error', 'flash_edit_error');
             } elseif ($this->isPreviewRequested()) {
                 // enable the preview template if the form was valid and preview was requested
-                $this->admin->enablePreviewTemplate();
+                $this->admin->setTemplate('edit', $this->admin->getTemplate('preview'));
             }
         }
 
@@ -459,7 +459,7 @@ class CRUDController extends Controller
                 $this->get('session')->setFlash('sonata_flash_error', 'flash_create_error');
             } elseif ($this->isPreviewRequested()) {
                 // enable the preview template if the form was valid and preview was requested
-                $this->admin->enablePreviewTemplate();
+                $this->admin->setTemplate('edit', $this->admin->getTemplate('preview'));
             }
         }