角 - 清除表单输入后提交 [英] Angular - clear form input after submit

问题描述

我有一个简单的形式，像这样：

I have a simple form like so:

<form name="add-form" data-ng-submit="addToDo()">
    <label for="todo-name">Add a new item:</label>
    <input type="text" data-ng-model="toDoName" id="todo-name" name="todo-name" required>
    <button type="submit">Add</button>
</form>

我的控制器如下：

with my controller as follows:

$scope.addToDo = function() {
    if ($scope.toDoName !== "") {
        $scope.toDos.push(createToDo($scope.toDoName));
    }
}

我想要做的是明确的文字输入提交后，所以我只需清除模型值：

what I'd like to do is clear the text input after submission so I simply clear the model value:

$scope.addToDo = function() {
    if ($scope.toDoName !== "") {
        $scope.toDos.push(createToDo($scope.toDoName));
        $scope.toDoName = "";
    }
}

除了现在，因为'需'的形式输入我避开表单输入一个红色边框。这是正确的行为，但不是我想在这种情况下...所以不是我想清除输入，然后模糊输入元素。这使我：

Except now, because the form input is 'required' I get a red border around the form input. This is the correct behaviour, but not what I want in this scenario... so instead I'd like to clear the input and then blur the input element. Which leads me to:

$scope.addToDo = function() {
    if ($scope.toDoName !== "") {
        $scope.toDos.push(createToDo($scope.toDoName));
        $scope.toDoName = "";
        $window.document.getElementById('todo-name').blur();
    }
}

现在，我知道修改从这样的控制器中的DOM是建立在角文档中皱起了眉头 - 但有没有这样做的多棱角的方式。

Now, I know that modifying the DOM from the controller like this is frowned upon in the Angular documentation - but is there a more Angular way of doing this?

推荐答案

当你给一个名称，你的形式，它会自动被添加到 $范围。

When you give a name to your form it automatically gets added to the $scope.

所以，如果你改变你的窗体名称为 addForm （因为我不认为添加 - 从是棱角分明，不知道为什么），你就会有一个参考 $ scope.addForm 一个有效的名称。

So if you change your form name to "addForm" ('cause I don't think add-from is a valid name for angular, not sure why), you'll have a reference to $scope.addForm.

如果您使用的角度1.1.1或以上，你就会有一个<一个href=\"https://github.com/angular/angular.js/commit/733a97adf87bf8f7ec6be22b37c4676cf7b5fc2b\"><$c$c>$setPristine()方法上的 $ scope.addForm 。应采取递归重置形式的照顾。或者如果你不想使用1.1​​.x的版本中，您可以看看源并效仿。

If you use angular 1.1.1 or above, you'll have a $setPristine() method on the $scope.addForm. which should recursively take care of resetting your form. or if you don't want to use the 1.1.x versions, you can look at the source and emulate it.

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