AngularJs限制用户选择已经在另一个相同类型的ui-select中选择了哪个

Question

我有2个相同类型的ui选择。例如，我已经用相同的数据（即存储）加载了2个ui-select。请建议我一个更好的选择。

如果ui-select 1是select storeA，则ui-select不会显示storeA。

  <div class="col-lg-6">
    <div class="form-group">
        <label>Receipt Store</label>
        <ui-select ng-model="domain.requestStore" theme="bootstrap" ng-disabled="disabled" ng-required="true">
            <ui-select-match placeholder="Select a store in the list or search one...">{{$select.selected.name}}</ui-select-match>
            <ui-select-choices repeat="lookup in lookupData.requestStore track by $index"
                               refresh="loadLookup('requestStore', $select.search)"
                               refresh-delay="0">
                <div ng-bind-html="lookup.name | highlight: $select.search"></div>
            </ui-select-choices>
        </ui-select>
    </div>
</div>
<div class="col-lg-6">
    <div class="form-group">
        <label>Issue Store</label>
        <ui-select ng-model="domain.issueStore" theme="bootstrap" ng-disabled="disabled" ng-required="true">
            <ui-select-match placeholder="Select a store in the list or search one...">{{$select.selected.name}}</ui-select-match>
            <ui-select-choices repeat="lookup in lookupData.issueStore track by $index"
                               refresh="loadLookup('issueStore', $select.search)"
                               refresh-delay="0">
                <div ng-bind-html="lookup.name | highlight: $select.search"></div>
            </ui-select-choices>
        </ui-select>
    </div>
</div>