ng-table v1.0.0: TypeError: Cannot read property 'page&#

ng-table v1.0.0: TypeError: Cannot read property 'page' of undefined

本文关键字：page read v1 TypeError Cannot ng-table property      更新时间：2023-09-26

我试图使用angularjs的ng-table从例子:http://4dev.tech/2015/08/tutorial-basic-datatable-sorting-filtering-and-pagination-with-angularjs-and-ng-table/

 angular.module('ngTableTutorial', ['ngTable'])
        .controller('tableController', function ($scope, $filter, NgTableParams) {
 
            $scope.users = [{"id":1,"first_name":"Philip","last_name":"Kim","email":"pkim0@mediafire.com","country":"Indonesia","ip_address":"29.107.35.8"},
                        {"id":2,"first_name":"Judith","last_name":"Austin","email":"jaustin1@mapquest.com","country":"China","ip_address":"173.65.94.30"},
                        {"id":3,"first_name":"Julie","last_name":"Wells","email":"jwells2@illinois.edu","country":"Finland","ip_address":"9.100.80.145"},
                        {"id":4,"first_name":"Gloria","last_name":"Greene","email":"ggreene3@blogs.com","country":"Indonesia","ip_address":"69.115.85.157"},
                        {"id":50,"first_name":"Andrea","last_name":"Greene","email":"agreene4@fda.gov","country":"Russia","ip_address":"128.72.13.52"}];
 $scope.usersTable = new NgTableParams({
                page: 1,
                count: 10
            }, {
                total: $scope.users.length, 
                getData: function ($defer, params) {
                    $scope.data = $scope.users.slice((params.page() - 1) * params.count(), params.page() * params.count());
                    $defer.resolve($scope.data);
                }
            });
            });
<!DOCTYPE html>
<html ng-app="ngTableTutorial">
    <head>
        <title>TODO supply a title</title>
        <meta charset="UTF-8">
	    <meta name="viewport" content="width=device-width, initial-scale=1.0">
		 <script src="https://ajax.googleapis.com/ajax/libs/jquery/3.1.0/jquery.min.js"></script>
        <script src="http://cdnjs.cloudflare.com/ajax/libs/angular.js/1.4.2/angular.js"></script>
        <link href="http://netdna.bootstrapcdn.com/bootstrap/3.3.1/css/bootstrap.min.css" rel="stylesheet" media="screen">
        <script src="http://netdna.bootstrapcdn.com/bootstrap/3.3.1/js/bootstrap.min.js" type="text/javascript"></script>
        <link rel="stylesheet" href="https://rawgit.com/esvit/ng-table/master/dist/ng-table.min.css">
        <script src="https://rawgit.com/esvit/ng-table/master/dist/ng-table.min.js"></script>
       <!-- <link href="app/resources/css/style.css" rel="stylesheet" type="text/css"/>
	    <script src="app/resources/js/app.js" type="text/javascript"></script>-->
	    
    </head>
    <body>
        <div ng-controller="tableController">
 <table ng-table="usersTable" class="table table-striped">
   <tr ng-repeat="user in data">
       <td data-title="'Id'" >
           {{user.id}}
       </td>
       <td data-title="'First Name'" >
           {{user.first_name}}
       </td>
       <td data-title="'Last Name'" >
           {{user.last_name}}
       </td>    
       <td data-title="'e-mail'" >
           {{user.email}}
       </td>    
       <td data-title="'Country'">
           {{user.country}}
       </td>    
       <td data-title="'IP'" >
           {{user.ip_address}}
       </td>    
   </tr>
</table>
        </div>
    </body>
</html>

And get exception:TypeError:无法读取未定义属性"page"

我想，这是因为ng-table到新版本1.0.0。现在，这个例子不起作用了。我不知道如何重写的例子，使其与新版本ng-table?

请帮帮我。

UPD:或者您可以发布独立的示例，使用ng-table 1.0.0, getdata，分页和过滤?

UPD:如果从getData参数中删除$defer是没有帮助的。这不是抛出例外，但不显示数据。显示问题的代码片段:

UPD 2016.08.16 1:15我添加一行美元的范围。数据= $scope.users.slice((params.page() - 1) * params.count()， params.page() * params.count());

和现在的数据显示，但没有过滤。如何重写代码片段来过滤数据?

UPD 2016.08.16 1:36:添加字符串

counts: [2, 4, 6, 10, 20],

和

<tr ng-repeat="user in $data track by user.id">

现在分页和过滤都很好。

	  angular.module('ngTableTutorial', ['ngTable'])
        .controller('tableController', function($scope, $filter, NgTableParams) {
    	          $scope.users = [
    	              { "id": 1, "first_name": "Philip", "last_name": "Kim", "email": "pkim0@mediafire.com", "country": "Indonesia", "ip_address": "29.107.35.8" },
    	              { "id": 2, "first_name": "Judith", "last_name": "Austin", "email": "jaustin1@mapquest.com", "country": "China", "ip_address": "173.65.94.30" },
    	              { "id": 3, "first_name": "Julie", "last_name": "Wells", "email": "jwells2@illinois.edu", "country": "Finland", "ip_address": "9.100.80.145" },
    	              { "id": 4, "first_name": "Gloria", "last_name": "Greene", "email": "ggreene3@blogs.com", "country": "Indonesia", "ip_address": "69.115.85.157" },
    	              { "id": 50, "first_name": "Andrea", "last_name": "Greene", "email": "agreene4@fda.gov", "country": "Russia", "ip_address": "128.72.13.52" }
    	          ];
    	          $scope.usersTable = new NgTableParams({
    	              page: 1,
    	              count: 2
    	          }, {
    	              total: $scope.users.length,
	                  counts: [2, 4, 6, 10, 20],
    	              getData: function( params) {
    	                params.total($scope.users.length);
	                  $scope.data = $scope.users.slice((params.page() - 1) * params.count(), params.page() * params.count());    	                 
	                  return $scope.data;
   
	                  }
    	          });
    	      })
<html ng-app="ngTableTutorial">
    <head>
        <title>TODO supply a title</title>
        <meta charset="UTF-8">
	    <meta name="viewport" content="width=device-width, initial-scale=1.0">
		 <script src="https://ajax.googleapis.com/ajax/libs/jquery/3.1.0/jquery.min.js"></script>
        <script src="http://cdnjs.cloudflare.com/ajax/libs/angular.js/1.4.2/angular.js"></script>
        <link href="http://netdna.bootstrapcdn.com/bootstrap/3.3.1/css/bootstrap.min.css" rel="stylesheet" media="screen">
        <script src="http://netdna.bootstrapcdn.com/bootstrap/3.3.1/js/bootstrap.min.js" type="text/javascript"></script>
        <link rel="stylesheet" href="https://rawgit.com/esvit/ng-table/master/dist/ng-table.min.css">
        <script src="https://rawgit.com/esvit/ng-table/master/dist/ng-table.min.js"></script>	    
    </head>
    <body>
        <div ng-controller="tableController">
 <table ng-table="usersTable" class="table table-striped">
   <tr ng-repeat="user in $data track by user.id">
       <td data-title="'Id'" >
           {{user.id}}
       </td>
       <td data-title="'First Name'" >
           {{user.first_name}}
       </td>
       <td data-title="'Last Name'" >
           {{user.last_name}}
       </td>    
       <td data-title="'e-mail'" >
           {{user.email}}
       </td>    
       <td data-title="'Country'">
           {{user.country}}
       </td>    
       <td data-title="'IP'" >
           {{user.ip_address}}
       </td>    
   </tr>
</table>
        </div>
    </body>
</html>

与0.8相比有一些突破性的变化。x到1.0.0版本的版本，文档在github存储库的CHANGELOG文件中:https://github.com/esvit/ng-table/blob/master/CHANGELOG.md#breaking-changes

正如@just.ru已经指出的那样，您的问题可能是由getData签名的更改引起的。在早期版本中，第一个参数是$defer，即$q服务中已知的某个deferred对象。这允许进行异步调用并发出新数据到达的信号。在1.0.0中，API进行了更改，现在您可以直接返回数据或为数据返回承诺。然后ng-table为您处理所有的事情。

所以如果你的数据已经可用，你不想使用服务器端过滤和排序，你可以使用新的dataset属性，像这样:

$scope.users = [ /* your data... */ ];

。

$scope.usersTable = new NgTableParams({
    // your config
  }, {
    dataset: $scope.users;
  }
);

或者您可以通过相应地实现getData方法来自己处理过滤:

$scope.usersTable = new NgTableParams({
    // your config
  }, {
    getData: function(params) {
      params.total($scope.users.length);
      return $scope.users.slice((params.page() - 1) * params.count(), params.page() * params.count());
    }
  }
);

如果您的服务器支持过滤和分页，那么您必须根据响应设置一些属性。响应必须包含有关查询匹配的元素总数的信息。

假设您的JSON响应看起来像这样:

{
   totalAmountOfMatchingItems: 33,
   itemsOfTheCurrentPage: [
     { /*... */ }
   ]
}

你可以相应地实现你的getData:

$scope.usersTable = new NgTableParams({
    // your config
  }, {
    getData: function(params) {
      return $scope.backendApi.queryForResult(params).then(function(data) {
        params.total(data.totalAmountOfMatchingItems);
        return data.itemsOfTheCurrentPage;
      });
    }
  }
);

调用params.total()方法是很重要的，这样ng-table就知道它必须如何呈现分页。

UPDATE:当您使用getData版本时，您还需要确保在迭代过滤项时引用正确的值。之前，您将过滤项分配给$scope.data。这现在也由ng-table处理，它使用$data属性。因此，要修复代码片段，还需要相应地调整ng-repeat:

 <tr ng-repeat="user in $data track by user.id">
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