Question

我有一个管理客户列表的控制器。每个客户端都是DS.Model。当我将控制器的内容设置为App.Client.find（）的结果时，代码抛出以下异常，即RecordArray。如果我将控制器的内容设置为空数组[]或者当我使用Ember.Object而不是DS.Model作为客户端对象时，我也不会例外

Uncaught Error: Cannot perform operations on a Metamorph that is not in the DOM. 

APP.ClientsController = Ember.ArrayController.extend({});

APP.Client = DS.Model.extend({
number:DS.attr('number'),
firstname:DS.attr('string')})


APP.ClientsRoute = Ember.Route.extend({
setupControllers: function(controller) {
    controller.set('clients',APP.Client.find());            
});

APP.store = DS.Store.create({
revision: 11,
adapter: 'DS.FixtureAdapter'     
});

任何想法，我尝试调试源代码，当Ember检测到对控制器内容的更改并触发arrayWillChange事件时，代码失败

  arrayWillChange: function(content, start, removedCount) {
// If the contents were empty before and this template collection has an
// empty view remove it now.
var emptyView = get(this, 'emptyView');
if (emptyView && emptyView instanceof Ember.View) {
  emptyView.removeFromParent();
}

// Loop through child views that correspond with the removed items.
// Note that we loop from the end of the array to the beginning because
// we are mutating it as we go.
var childViews = get(this, 'childViews'), childView, idx, len;

len = get(childViews, 'length');

var removingAll = removedCount === len;

if (removingAll) {
  this.currentState.empty(this);
}

for (idx = start + removedCount - 1; idx >= start; idx--) {
  childView = childViews[idx];
  if (removingAll) { childView.removedFromDOM = true; }
  childView.destroy();
}

}，

Answer 1

原来是干扰外部脚本（Datatable Jquery Plugin）试图修改相同的dom结构ember的控制。

将内容设置为RecordArray throws无法对不在DOM中的Metamorph执行操作

1 个答案: