Angular JS Magazine

marți, 7 octombrie 2014

Custom Directive - Two-Way Binding for an Isolated Scope

In Custom Directive - One-Way Binding for an Isolated Scope you saw how to allow a custom directive the receive data values from the controller scope via its isolated scope. Next, you can see a two-way binding, which means that this time the isolated scope has access to the data value in the controller scope:

<!DOCTYPE html>
<html>
<head lang="en">
    <meta charset="UTF-8">
    <title></title>
    <script src="../angular/angular.min.js"></script>
    <style type="text/css">
    </style>
    <script type="text/ng-template" id="playerTemplate">
        <div class="panel-body">
            <p>Player:
                {{selectedPlayer.name}}<br/>
                <select ng-model='selectedPlayer' 
                    ng-options='item.name group by item.age for item in playerslocal'>
                    <option value=''>(Pick One Player)</option>
                </select>
            </p>
            <p>Court: <input ng-model="courtlocal"/></p>
            <p>Injury: <input ng-model="injurylocal"/></p>
        </div>
    </script>
    <script>
        angular.module("appModule", [])
                .controller("appCtrl", function ($scope) {
                    $scope.injury_p1 = "No";
                    $scope.injury_p2 = "No";
                    $scope.court = {name: "Philippe Chatrier"};
                    $scope.players = [
                        { name: 'Nadal, Rafael (ESP)', rank: 1, age: '28', prizemoney: 66149345 },
                        { name: 'Djokovic, Novak (SRB)', rank: 2, age: '27', prizemoney: 70704129 },
                        { name: 'Federer, Roger (SUI)', rank: 3, age: '33', prizemoney: 84827704 },
                        { name: 'Wawrinka, Stan (SUI)', rank: 4, age: '29', prizemoney: 13155060 },
                        { name: 'Ferrer, David (ESP)', rank: 5, age: '32', prizemoney: 24034072 },
                        { name: 'Tsonga, Jo-Wilfried (FRA)', rank: 11, age: '29', prizemoney: 1708240 },
                        { name: 'Simon, Gilles (FRA)', rank: 26, age: '29', prizemoney: 760469 },
                        { name: 'Lopez, Feliciano (ESP)', rank: 20, age: '33', prizemoney: 1100579 },
                        { name: 'Benneteau, Julien (FRA)', rank: 28, age: '32', prizemoney: 617688 },
                        { name: 'Verdasco, Fernando (ESP)', rank: 33, age: '30', prizemoney: 689219 },
                        { name: 'Mayer, Leonardo (ARG)', rank: 25, age: '27', prizemoney: 946294 }
                    ];
                })
                .directive("nextMatch", function () {
                    return {
                        template: function () {
                            return angular.element(
                                    document.querySelector("#playerTemplate")).html();
                        },
                        scope: {
                            injurylocal: "=injuryattr",
                            courtlocal: "=courtattr",
                            playerslocal: "=playersattr"
                        }
                    }
                });
    </script>
</head>
<body>
<div ng-app="appModule" ng-controller="appCtrl">
    Next match on Roland Garros:
    <table>
        <tr>
            <td>
                <div next-match injuryattr="injury_p1" 
                         courtattr="court.name" playersattr="players"></div>
            </td>
            <td>
                <div next-match injuryattr="injury_p2" 
                         courtattr="court.name" playersattr="players"></div>
            </td>
        </tr>
    </table>
</div>
</body>
</html>