我需要对Angular js中的表进行过滤。我有这个代码，但我没有工作。在这里，我有2个下拉菜单：对于eat_code和feeling_code，我想在选择每个行后过滤行。
<div class="widgets">
<div class="row">
<div class="col-md-12">
<div class ="panel">
<div class="panel-heading">
<h3 class="panel-title">Select PID</h3>
</div>
<div class="panel-body">
<form class="row form-inline ng-pristine ng-valid ng-scope"
novalidate name="getBGsForm">
<div class="form-group col-sm-3 col-xs-6"
ng-class="{'has-error': getBGsForm.patientID.$invalid && (getBGsForm.patientID.$dirty || getBGsForm.$submitted)}">
<input type="text" class="form-control"
ng-model="patientID"
placeholder="PID"
required name="patientID">
<span class="help-block error-block basic-block"
ng-if="getBGsForm.patientID.$error.required">Patient ID is required.</span>
</div>
<button type="submit"
class="btn btn-primary"
ng-click="getBGs()">Show BGs</button>
</form>
</div>
</div>
<div ba-panel>
<div>
<div class="col-md-4">
<select class="form-control"
ng-model="search.eat_code"
ng-options="v.code as (v.code + ' - ' + v.label) for v in dropdownValuesTag">
<option value=""> --- filter by meal tag --- </option>
</select>
</div>
<div class="col-md-4">
<select class="form-control"
ng-model="search.feeling_code"
ng-options="v.code as (v.code + ' - ' + v.label) for v in dropdownValuesSource">
<option value=""> --- filter by source --- </option>
</select>
</div>
</div>
</div>
<div ba-panel>
<div class="horizontal-scroll">
<div class="form-group select-page-size-wrap ">
<label>Rows on page
<select class="form-control selectpicker show-tick"
title="Rows on page" selectpicker
ng-model="smartTablePageSizeBG"
ng-options="i for i in [5, 10, 15, 20, 25]">
</select>
</label>
</div>
</div>
<table class="table" st-table="displayedCollectionBG" st-safe-src="smartTableDataBG" st-set-filter = "myStrictFilter">
<thead>
<tr class="sortable ">
<th st-sort="id">Reading Id</th>
<th st-sort="value">Value</th>
<th st-sort="unit">Unit</th>
<th st-sort="timestamp">Timestamp</th>
<th st-sort="is_control">Is Control</th>
<th st-sort="source">Source</th>
<th st-sort="eat_code">Eat Code</th>
<th st-sort="feeling_code">Feeling Code</th>
<th st-sort="carb"> Carb</th>
<th st-sort="note"> Note</th>
<th st-sort="storedTimestamp">Stored Timestamp</th>
<th st-sort="adaTargetRangeStatus">adaTargetRangeStatus</th>
<th>Actions</th>
</tr>
</thead>
<tbody>
<tr ng-repeat="item in displayedCollectionBG | filter: search">
<td class="table-id">{{item.id}}</td>
<td>{{item.value}}</td>
<td>mg/dl</td>
<td><span ng-bind="item.timestamp | date:'MM / dd / yyyy hh:mm:ss a'"></span></td>
<td>{{item.tags.is_control}}</td>
<td>{{item.tags.source}}</td>
<td>{{item.tags.eat_code}}</td>
<td>{{item.tags.feeling_code}}</td>
<td>{{item.tags.carb}}</td>
<td>{{item.tags.note}}</td>
<td><span ng-bind="item.storedTimestamp | date:'MM / dd / yyyy hh:mm:ss a'"></span></td>
<td>{{item.adaTargetRangeStatus}}</td>
<td>
<div class="buttons">
<a class="btn btn-primary editable-table-button btn-xs" ui-sref="BGs.form({id: {{item.id}}})" ui-sref-opts="{reload: true}">Edit</a>
</div>
</td>
</tr>
</tbody>
<tfoot>
<tr>
<td colspan="6" class="text-center">
<div st-pagination="" st-items-by-page="smartTablePageSizeBG" st-displayed-pages="5"></div>
</td>
</tr>
</tfoot>
</table>
</div>
</div>
</div>
</div>
我做错了什么？谢谢！