app: allow form widget to be updated (refreshed)

js/erp5_loader.js

@@ -1483,21 +1483,28 @@
     container = document.createDocumentFragment();
     form_id = "form_" + util.uuid();
     item_id = spec.data ? (spec.data._id || undefined) : undefined;
-    form = factory.element({
-      "type": "form",
-      "direct": {
-        "id": form_id,
-        "method": "POST",
-        "action": "#",
-        "className": (spec.class_list || "")
-      },
-      "attributes": {"data-ajax": false, "autocomplete": "off"},
-      "logic": {
-        "data-reference": spec.reference || null,
-        "data-depend": spec.depend || null,
-        "data-reset": spec.reset || null
-      }
-    });
+    if (spec.update) {
+      form = document.createDocumentFragment();
+    } else {
+      form = factory.element({
+        "type": "form",
+        "direct": {
+          "id": form_id,
+          "method": "POST",
+          "action": "#",
+          "className": (spec.class_list || "")
+        },
+        "attributes": {
+          "data-ajax": false,
+          "autocomplete": "off",
+          "data-widget": "form"
+        },
+        "logic": {
+          "data-reference": spec.reference || null,
+          "data-map": spec.map_children || null
+        }
+      });
+    }
 
     // NOTE: needed to differentiate between PUT/POST
     // TODO: block_identifier is only used for release_install, find better!