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HomeBackend DevelopmentPHP TutorialYii2 form event Ajax submission implementation method

这篇文章主要介绍了Yii2表单事件之Ajax提交实现方法,结合实例形式分析了Yii2框架中ajax提交的具体实现技巧,需要的朋友可以参考下

本文实例讲述了Yii2表单事件之Ajax提交实现方法。分享给大家供大家参考,具体如下:

前言

Yii2 现在使用 JS 都必须要注册代码了。

要实现 Ajax 提交,有两种方法。一是直接在 ActiveForm 调用 beforeSubmit 参数,但是个人认为这样没有很好的把 JS 和 HTML 分开,所以我们这篇文章主要介绍第二种方法 - 外部写 JS 方法。

表单部分

<?php $form = ActiveForm::begin([
  &#39;id&#39;   => $model->formName(),
  &#39;action&#39; => [&#39;/apitools/default/index&#39;]
]); ?>

Ajax

<?php
$js = <<<JS
// get the form id and set the event
$(&#39;form#{$model->formName()}&#39;).on(&#39;beforeSubmit&#39;, function(e) {
  var \$form = $(this);
  // do whatever here, see the parameter \$form? is a jQuery Element to your form
}).on(&#39;submit&#39;, function(e){
  e.preventDefault();
});
JS;
$this->registerJs($js);

如果你使用了 JsBlock,你还可以这样写:

<?php JsBlock::begin() ?>
  <script>
    $(function () {
      jQuery(&#39;form#apitool&#39;).on(&#39;beforeSubmit&#39;, function (e) {
        var $form = $(this);
        $.ajax({
          url: $form.attr(&#39;action&#39;),
          type: &#39;post&#39;,
          data: $form.serialize(),
          success: function (data) {
            // do something
          }
        });
      }).on(&#39;submit&#39;, function (e) {
        e.preventDefault();
      });
  </script>
<?php JsBlock::end() ?>

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