渲染 Ajax 视图

Controller::renderAjax() 方法可用于响应 Ajax 请求。此方法类似于 renderPartial()，除了它将使用 JS / CSS 脚本和在视图中注册的文件注入到呈现结果中

假设我们在视图文件中有登录表单：

<?php
use yii\helpers\Html;
use yii\bootstrap\ActiveForm;

\yii\bootstrap\BootstrapAsset::register($this);

<div class="site-login">

    <?php $form = ActiveForm::begin(); ?>

        <?= $form->field($model, 'username')->textInput() ?>

        <?= $form->field($model, 'password')->passwordInput() ?>

        <?= Html::submitButton('Login',['class' => 'btn btn-primary btn-block']) ?>

    <?php ActiveForm::end(); ?>
</div>

当我们在控制器动作中使用 renderPartial() 时：

public function actionLogin()
{
    $model = new LoginForm();
    if ($model->load(Yii::$app->request->post()) && $model->login()) {
        return $this->goBack();
    }
    return $this->renderPartial('login', [
        'model' => $model,
    ]);
}

动作输出：

<div class="site-login">
    <form id="w0" action="/site/login" method="post" role="form">
        <div class="form-group field-loginform-username required">
            <label class="control-label" for="loginform-username">Имя пользователя</label>
            <input type="text" id="loginform-username" class="form-control" name="LoginForm[username]">
        </div>
        <div class="form-group field-loginform-password required">
            <label class="control-label" for="loginform-password">Пароль</label>
            <input type="password" id="loginform-password" class="form-control" name="LoginForm[password]">
        </div>
        <button type="submit" class="btn btn-primary btn-block">Login</button>
    </form>
</div>

当我们在控制器动作中使用 renderAjax() 时：

    ...
    return $this->renderAjax('login', [
        'model' => $model,
    ]);
    ...

动作输出（JS，注入 CSS）：

<link href="/assets/f1759119/css/bootstrap.css" rel="stylesheet">
<div class="site-login">
    <form id="w0" action="/site/login" method="post" role="form">
        <div class="form-group field-loginform-username required">
            <label class="control-label" for="loginform-username">Имя пользователя</label>
            <input type="text" id="loginform-username" class="form-control" name="LoginForm[username]">
        </div>
        <div class="form-group field-loginform-password required">
            <label class="control-label" for="loginform-password">Пароль</label>
            <input type="password" id="loginform-password" class="form-control" name="LoginForm[password]">
        </div>
        <button type="submit" class="btn btn-primary btn-block">Login</button>
    </form>
</div>
<script src="/assets/13aa7b5d/jquery.js"></script>
<script src="/assets/302a2946/yii.js"></script>
<script src="/assets/302a2946/yii.validation.js"></script>
<script src="/assets/302a2946/yii.activeForm.js"></script>

如果我们想从视图中排除某些资产（以防止出现共识）：

...
Yii::$app->assetManager->bundles = [
    'yii\bootstrap\BootstrapAsset' => false,
];
return $this->renderAjax('login', [
    'model' => $model,
]);
...

动作输出（没有 bootstrap.css）：

<div class="site-login">
    <form id="w0" action="/site/login" method="post" role="form">
        <div class="form-group field-loginform-username required">
            <label class="control-label" for="loginform-username">Имя пользователя</label>
            <input type="text" id="loginform-username" class="form-control" name="LoginForm[username]">
        </div>
        <div class="form-group field-loginform-password required">
            <label class="control-label" for="loginform-password">Пароль</label>
            <input type="password" id="loginform-password" class="form-control" name="LoginForm[password]">
        </div>
        <button type="submit" class="btn btn-primary btn-block">Login</button>
    </form>
</div>
<script src="/assets/13aa7b5d/jquery.js"></script>
<script src="/assets/302a2946/yii.js"></script>
<script src="/assets/302a2946/yii.validation.js"></script>
<script src="/assets/302a2946/yii.activeForm.js"></script>