fix creating new property

jsonform/gadget_json_generated_form_child.js

@@ -305,7 +305,8 @@
       property_name,
       parent_path,
       scope;
-
+    return RSVP.Queue()
+      .push(function () {
         scope = generateUid(g);
         parent_path = options.parent_path;
         if (options.parent_type !== "array") {
@@ -314,21 +315,18 @@
             property_name = input_element.value;
           }
           if (!property_name) {
-        // XXX notify user
-        // you can't create property without property_name
-        return RSVP.Queue();
+            throw new Error("can't create property without name");
           }
           if (g.props.objects[parent_path].hasOwnProperty(property_name) && g.props.objects[parent_path][property_name] !== "") {
-        // XXX notify user
-        // you can't create property with existed property_name
-        return RSVP.Queue();
+            throw new Error("you can't create property with existed name");
           }
           if (input_element) {
             input_element.value = "";
           }
         }
 
-    return g.declareGadget('gadget_json_generated_form_child.html', {scope: scope})
+        return g.declareGadget('gadget_json_generated_form_child.html', {scope: scope});
+      })
       .push(function (form_gadget) {
         form_gadget.element.setAttribute("data-gadget-parent-scope",
           g.element.getAttribute("data-gadget-scope"));
@@ -663,6 +661,9 @@
                           return event(schema_alternatives[value[scope]].value);
                         })
                         .push(function (v) {
+                          if (v) {
+                            return RSVP.Queue()
+                              .push(function () {
                                 notify.scope = v.scope;
                                 notify.path = v.path;
                                 if (rerender) {
@@ -676,6 +677,8 @@
                               .push(function () {
                                 return gadget.rootNotifyChange(notify);
                               });
+                          }
+                        });
                     },
                     rerender: function () {
                       return RSVP.Queue()
@@ -722,6 +725,9 @@
                   };
                   return event(schema_alternatives[0].value)
                     .push(function (v) {
+                      if (v) {
+                        return RSVP.Queue()
+                          .push(function () {
                             notify.scope = v.scope;
                             notify.path = v.path;
                             if (rerender) {
@@ -737,6 +743,8 @@
                             }
                             return gadget.rootNotifyChange(notify);
                           });
+                      }
+                    });
                 },
                 rerender: function () {
                   return RSVP.Queue()
@@ -1269,7 +1277,11 @@
               type: value.type,
               schema_arr: [value]
             })
-              .push(element_append);
+              .push(element_append)
+              .push(undefined, function (err) {
+                // XXX notify user
+                console.error(err);
+              });
           });
         });
         return queue;