yii2提交时获取optgroup的标签

Question

我有一个选择框：

<select id="issue-users_id" class="form-control" name="Issue[users_id]">
  <optgroup label="user">
    <option value="16">user</option>
    <option value="24">robo</option>
  </optgroup>
  <optgroup label="group">
   <option value="15">123123</option>
 </optgroup>
</select>

提交表单时，我希望有这样的数组：

Issue[users_id][user] = value (16, 24)
or Issue[users_id][group] = value (15)

这意味着我想获得optgroup的价值

Answer 1

一切皆有可能是手动准备数据并将其发送到服务器。提交获取表单数据并替换Issue.user_id param：

var selected = $('#issue-users_id').find(":selected"),
    optgroup = selected.closest('optgroup');

if ( optgroup.attr('label') == 'group' ) {
   form_data.Issue.users_id = {
     group: selected.val()
   }
} else {
   form_data.Issue.users_id = {
     user: selected.val()
   }
}

$.ajax(/* send form */);