Angular JS Magazine

luni, 1 septembrie 2014

Angular and Form Elements - part 4

In Angular and Form Elements - part 3 we have signal invalid fields via CSS classes. Further, we will fine grained the validation process by adding textual feedback:

<!DOCTYPE html>
<html>
<head lang="en">
    <meta charset="UTF-8">
    <title></title>
    <script src="../angular/angular.min.js"></script>
    <link href="../bootstrap/css/bootstrap.css" rel="stylesheet"/>
    <link href="../bootstrap/css/bootstrap-theme.css" rel="stylesheet"/>
    <script>
        angular.module("atpModule", [])
                .controller("atpCtrl", function ($scope) {
                    $scope.addNewPlayer = function (newPlayer) {
                        if (angular.isDefined(newPlayer)) {
                            $scope.atp.push({name: newPlayer.name,
                               email: newPlayer.email, rank: $scope.atp.length + 1});
                        }
                    };
                });
    </script>
    <style>
        form .ng-invalid.ng-dirty {
            background-color: coral;
        }

        form .ng-valid.ng-dirty {
            background-color: lightcyan;
        }

        span.error {
            color: red;
            size:10px;
        }
    </style>
</head>
<body>
<div ng-app="atpModule" ng-controller="atpCtrl" ng-init="atp=[
     { name: 'Nadal, Rafael (ESP)', email: 'nadalrafael@gmail.com', rank: 1 },
     { name: 'Djokovic, Novak (SRB)', email: 'djokovicnovak@gmail.com', rank: 2 },
     { name: 'Federer, Roger (SUI)', email: 'federerroger@gmail.com', rank: 3 },
     { name: 'Wawrinka, Stan (SUI)', email: 'wawrinkastan@gmail.com', rank: 4 },
     { name: 'Ferrer, David (ESP)', email: 'ferrerdavid@gmail.com', rank: 5 }]">

    <div id="atpPanel" class="panel">
        <h3 class="panel-header">ATP SINGLES RANKINGS</h3>
        <table class="table">
            <thead>
            <tr>
                <th>Name</th>
                <th>E-mail</th>
                <th>Rank</th>
            </tr>
            </thead>
            <tbody>
            <tr ng-repeat="item in atp">
                <td>{{item.name}}</td>
                <td>{{item.email}}</td>
                <td>{{item.rank}}</td>
            </tr>
            </tbody>
        </table>
    </div>
    <div class="col-xs-6">
        <form name="atpForm" novalidate ng-submit="addNewPlayer(player)">
            <div class="well">
                <div class="form-group row">
                    <label for="playerNameId">Player Name:</label>
                    <input id="playerNameId" name="playerName"
                               type="text" class="form-control" ng-model="player.name"
                               required>

                    <div ng-show="atpForm.playerName.$invalid && atpForm.playerName.$dirty">
                        <span class="error">You need to provide the player name ...</span>
                    </div>
                </div>
                <div class="form-group row">
                    <label for="playerEmailId">Player E-mail:</label>
                    <input id="playerEmailId" name="playerEmail" type="email" class="form-control"
                           ng-model="player.email" required>

                    <div ng-show="atpForm.playerEmail.$invalid && atpForm.playerEmail.$dirty">
                        <span class="error" ng-show="atpForm.playerEmail.$error.required">
                         You need to provide an e-mail address ...
                        </span>
                        <span class="error" ng-show="atpForm.playerEmail.$error.email">
                          You need to provide a valid e-mail address ...
                        </span>
                    </div>
                </div>
                <div class="form-group row">
                    <label for="playerRankId">Player Rank:</label>
                    <span id="playerRankId">{{atp.length + 1}}</span>
                </div>
                <button class="btn btn-primary btn-block" ng-disabled="atpForm.$invalid">
                    Add Player
                </button>
            </div>
        </form>
    </div>
</div>
</body>
</html>