Question

以下是在html页面中按团队显示分组的静态代码。我想要使用mysql数据库记录的相同进程。 anuglar控制器和Api需要进行哪些更改

HTML

<ul>
    <li ng-repeat="(team, players) in teamPlayers | groupBy:'team'">
        {{team}}
        <ul>
            <li ng-repeat="player in players">
                {{player.name}}
            </li>
        </ul>
    </li>
</ul>

控制器

app.controller('homeCtrl', function($scope) {
    var teamAlpha = {name: 'team alpha'};
    var teamBeta = {name: 'team beta'};
    var teamGamma = {name: 'team gamma'};

    $scope.teamPlayers = [{name: 'Gene', team: teamAlpha},
                      {name: 'George', team: teamBeta},
                      {name: 'Steve', team: teamGamma},
                      {name: 'Paula', team: teamBeta},
                      {name: 'Scruath of the 5th sector', team: teamGamma}];
});

Php代码

$select=" select name, team from player where 1";
$result=$con->query($select)or die(mysqli_error());
$num=$result->num_rows;
if($num > 0)
{
    $arr = array(); 
    while($row=$result->fetch_array())
    {
    $arr[]=array('name'=>$row['name'], 
                    'team'=>$row['team'],

                    );  

        }

    }

$outputArr = array();
$outputArr['Player'] = $arr;
header("Content-type: application/json");
echo json_encode($outputArr);

Answer 1

假设您在http::localhost/myapi/players有一个后端服务，该服务返回一个包含其团队的玩家列表，即

[{name: 'Gene', team: { name: 'team alpha'}},
 {name: 'George', team: {name: 'team beta'}},
 ...];

您可以使用有角度的$http服务来调用后端：

app.controller('homeCtrl', function($scope, $http) {
    var playerUrl = 'http::localhost/myapi/players';
    $http.get(playerUrl).then(function(response) {
        $scope.teamPlayers = response.data;
    }, function(responseError) {
        // do something if backend return an error
    });
});

作为一种良好做法，您可以将服务器调用放在单独的服务中，例如，如果您有多个视图和控制器，它们将调用相同的服务，例如

app.factory('teamService', ['$http', function($http) {
    var playerUrl = 'http::localhost/myapi/players';        
    return {
        getTeamPlayers: function() {
            return $http.get(playerUrl);
        }
    }
}]);

然后您的控制器是：

app.controller('homeCtrl', ['$scope', 'teamService', function($scope, teamService) {
    teamService.getTeamPlayers().then(function(response) {
        $scope.teamPlayers = response.data;
    }, function(responseError) {
        // do something if backend return an error
    });
}]);

$http服务是异步的，并返回promise，因此使用.then(function(response) {...});。有关详细信息，请参阅$http documentation。

注意：
您必须为groupBy过滤器设置angular.filter的依赖关系，并且team.name不仅要team分组。

我设置了plunker后端服务是硬编码的。

Answer 2

控制器：

var teamAlpha = {name: 'team alpha'};
var teamBeta = {name: 'team beta'};
var teamGamma = {name: 'team gamma'};

$scope.teamPlayers = [{name: 'Gene', team: teamAlpha},
                  {name: 'George', team: teamBeta},
                  {name: 'Steve', team: teamGamma},
                  {name: 'Paula', team: teamBeta},
                  {name: 'Scruath of the 5th sector', team: teamGamma}];

视图：

<ul ng-repeat="(team, value) in teamPlayers | groupBy: 'team.name'">
  Group name: {{ team }}
  <li ng-repeat="player in value">
    player: {{ player.name }} 
  </li>
</ul>

这是一个演示http://jsbin.com/qobasocido/1/edit?html,js,output

如何在mysql数据库记录的基础上对angularjs中的记录进行分组

2 个答案: