[CRUD] check that action exists before inserting them in edit and view template

CRUD/Resolver/Resolver.php

@@ -93,4 +93,10 @@ class Resolver
             '_'.
             $action);
     }
+    
+    public function hasAction($crudName, $action)
+    {
+        return \array_key_exists($action, 
+            $this->crudConfig[$crudName]['actions']);
+    }
 }

CRUD/Templating/TwigCRUDResolver.php

@@ -47,7 +47,9 @@ class TwigCRUDResolver extends AbstractExtension
     {
         return [
             new TwigFunction('chill_crud_config', [$this, 'getConfig'],
-                ['is_safe' => 'html'])
+                ['is_safe' => 'html']),
+            new TwigFunction('chill_crud_action_exists', [$this, 'hasAction'],
+                []),
         ];
     }
     
@@ -55,5 +57,10 @@ class TwigCRUDResolver extends AbstractExtension
     {
         return $this->resolver->getConfigValue($configKey, $crudName, $action);
     }
+    
+    public function hasAction($crudName, $action)
+    {
+        return $this->resolver->hasAction($crudName, $action);
+    }
 
 }