我是AngularJs的新手，我在AngularJs中做过crud操作，我已经获取了具有（查看，编辑（更新），删除）等选项的用户的所有记录
如果用户想要更新记录，那么他点击编辑然后显示他/她的记录。所有字段都是强制性的如果用户删除文本框中的文本。然后按取消按钮，重定向到mange用户页面，空白字段
就像在我的plunker中一样，我想更新一条记录，点击编辑，然后在名称（文本框）中将其设为空白。立即单击“取消” 然后输出将清空我的记录（名称字段）
但是，我希望用户记录（名称字段）中的数据，如果用户将其设为空白
我在这里更新了我的代码
<!DOCTYPE html>
<html>
<head>
<script src="http://ajax.googleapis.com/ajax/libs/angularjs/1.3.14/angular.min.js"></script>
<link href="style.css" rel="stylesheet" />
<link href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.5/css/bootstrap-theme.min.css" rel="stylesheet" />
<link rel="stylesheet" href="http://maxcdn.bootstrapcdn.com/bootstrap/3.3.5/css/bootstrap.min.css">
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.3/jquery.min.js"></script>
<script src="http://maxcdn.bootstrapcdn.com/bootstrap/3.3.5/js/bootstrap.min.js"></script>
<script src="script.js"></script>
</head>
<body>
<h1>Hello Plunker!</h1>
<div class="container" style="padding-top:20px;">
<div ng-app="userApp" data-ng-controller="userController" class="container">
<div ng-show="error" class="alert alert-danger alert-dismissible" role="alert">
<button type="button" class="close" data-dismiss="alert"><span aria-hidden="true">×</span><span class="sr-only">Close</span></button>
<p>{{ error }}</p>
</div>
<div class="modal fade" id="userModel" tabindex="-1" role="dialog" aria-hidden="true">
<div class="modal-dialog">
<div class="modal-content">
<div class="modal-header">
<button type="button" class="close" data-dismiss="modal" aria-hidden="true">X</button>
<h4 class="modal-title" id="myModalLabel" ng-hide="editMode">Add User</h4>
<h4 class="modal-title" id="myModalLabel" ng-show="editMode">Edit User</h4>
</div>
<div class="modal-body">
<form class="form-horizontal" role="form" name="adduserform">
<div class="form-group">
<label for="title" class="col-sm-2 control-label">Name</label>
<div class="col-sm-10">
<input type="text" data-ng-model="user.name" name="name" class="form-control" id="title" placeholder="Your Name" required title="Enter your name" />
</div>
</div>
<div class="form-group">
<label for="title" class="col-sm-2 control-label">Address</label>
<div class="col-sm-10">
<input type="text" data-ng-model="user.address" name="address" class="form-control" id="title" placeholder="Your Address" required title="Enter your address" />
</div>
</div>
<div class="form-group">
<label for="title" class="col-sm-2 control-label">ContactNo</label>
<div class="col-sm-10">
<input type="text" data-ng-model="user.contact" name="contact" class="form-control" id="title" placeholder="Your ContactNo" required title="Enter your contactno" />
</div>
</div>
<div class="form-group">
<div class="col-sm-offset-2 col-sm-10">
<span data-ng-hide="editMode">
<input type="submit" value="Add" ng-disabled="adduserform.$invalid" data-ng-click="add()" class="btn btn-primary" />
</span>
<span data-ng-show="editMode">
<!-- <input type="submit" value="Update" ng-disabled="" data-ng-click="update()" class="btn btn-primary"/> -->
<input type="submit" disabled="disabled" value="update" class="btn btn-primary"/>
</span>
<input type="button" value="Cancel" data-ng-click="cancel()" class="btn btn-primary" />
</div>
</div>
</form>
</div>
</div>
</div>
</div>
<h1>Users List</h1>
<table class="table table-hover">
<tr>
<th>User ID</th>
<td>Name</td>
<th>Address</th>
<th>Contact No</th>
<th></th>
</tr>
<tr data-ng-repeat="user in users">
<td><strong>{{ user.id }}</strong></td>
<td>
<p>{{ user.name }}</p>
</td>
<td>
<p>{{ user.address }}</p>
</td>
<td>
<p>{{ user.contact }}</p>
</td>
<td>
<p>
<a data-ng-click="get(user)" href="javascript:;">View</a> |
<a data-ng-click="edit(user)" href="javascript:;">Edit</a> |
<a data-ng-click="showconfirm(user)" href="javascript:;">Delete</a>
</p>
</td>
</tr>
</table>
<hr />
<div class="modal fade" id="viewModal" tabindex="-1" role="dialog" aria-hidden="true">
<div class="modal-dialog">
<div class="modal-content">
<div class="modal-header">
<button type="button" class="close" data-dismiss="modal" aria-hidden="true">X</button>
<h4 class="modal-title" id="myModalLabel">View User</h4>
</div>
<div class="modal-body">
<form class="form-horizontal" role="form" name="viewuser">
<div class="form-group">
<label for="Name" class="col-sm-2 control-label">Name</label>
<div class="col-sm-10">
{{user.name}}
</div>
</div>
<div class="form-group">
<label for="Address" class="col-sm-2 control-label">Address</label>
<div class="col-sm-10">
{{user.address}}
</div>
</div>
<div class="form-group">
<label for="ContactNo" class="col-sm-2 control-label">ContactNo</label>
<div class="col-sm-10">
{{user.contact}}
</div>
</div>
</form>
</div>
<div class="modal-footer">
<button type="button" class="btn btn-default" data-dismiss="modal">Close</button>
</div>
</div>
</div>
</div>
<div class="modal fade" id="confirmModal" tabindex="-1" role="dialog" aria-hidden="true">
<div class="modal-dialog">
<div class="modal-content">
<div class="modal-header">
<button type="button" class="close" data-dismiss="modal" aria-hidden="true">X</button>
<h4 class="modal-title" id="myModalLabel">Confirm Action</h4>
</div>
<div class="modal-body">
Are you sure to delete?
</div>
<div class="modal-footer">
<button type="button" class="btn btn-default" data-ng-click="delete()">Ok</button>
<button type="button" class="btn btn-default" data-dismiss="modal">Cancel</button>
</div>
</div>
</div>
</div>
</div>
</div>
</body>
</html>
请帮我解决这个问题
答案 0 :(得分：0)
您正在将模态绑定到原始用户对象。
相反，您可以制作用户的临时副本，如果单击“取消”，则将温度复制回原始用户：
$scope.edit = function () {
$scope.user = this.user;
$scope.tempUser = angular.copy($scope.user); //copy user to temp
$scope.editMode = true;
$('#userModel').modal('show');
};
$scope.cancel = function () {
angular.copy($scope.tempUser, $scope.user); // copy back from temp to user
$('#userModel').modal('hide');
}
请参阅此plunker