Allow dashboard updates for models that have only files or images

resources/assets/js/dashboard.js

@@ -628,6 +628,7 @@ function editItemInit() {
             getFormData();
 
             // submit the update
+            if (Object.keys(formData.columns).length) {
                 $.ajax({
                     type: "POST",
                     url: "/dashboard/update",
@@ -643,6 +644,9 @@ function editItemInit() {
                         });
                     }
                 });
+            } else {
+                uploadImage(formData.id, 0);
+            }
         }
     });
 }