带有Phalcon的Vue JS 2 Axios发布请求表格

Question

我尝试用Axios张贴表格。但是我不知道为什么，需要2请求发布以将数据存储到数据库。

表格

<button type="submit" class="btn btn-danger btn-raised" @click="editUser();">Save</button>

Axios POST

editUser: function(formData){
    var formData = vmUser.toFormData(vmUser.userData);
    axios.post("/admin/users/update", formData)
    .then( function(response){
        vmUser.userData = {
                user_id: $("#user_id").val(),
                ...
        }

toFormData方法

toFormData: function(obj){
                    var form_data = new FormData();
                    for ( var key in obj ) {
                        form_data.append(key, obj[key]);
                    } 
                    return form_data;
                },

Phalcon控制器

$data = [
        'result' => 'ok',
        'error' => '',
        'message' => '',
];
        $user_id = $this->request->getPost("user_id");
        $user = SyswebUsers::findFirstByUserId($user_id);
        $user->user_name = $this->request->getPost("user_name");
        ...
        if (!$user->save()) {
            $data['error'] = 'error';
            $data['message'] = 'Failed!';
        }
        else
        {
            $data['message'] = 'Success!';

        } 
$this->sendJson($data);