有两个ui选择并仅更改ng-model(数据来自一个mongodb集合):
<ui-select ng-model="flat.flatData.salesby" theme="bootstrap">
<ui-select-match placeholder="Sales by">
{{ $select.selected.ag_name }}
</ui-select-match>
<ui-select-choices repeat="uiag_name.ag_name as uiag_name in flat.ag track by $index | filter: $select.search">
<div ng-bind-html="uiag_name.ag_name | highlight: $select.search"></div>
</ui-select-choices>
</ui-select>
如何添加第一个ui-select选项,例如&#39; option1&#39;,以及第二个&#39; option2&#39;?