将文件上传到文件系统，然后将详细信息存储在数据表上[重复]

Question

我正在编写一个视图来上传文件，用户可以选择将其上传到文件系统或上传到文件系统并将文件名记录在数据表上。

此时，第一阶段（仅将其上传到文件系统）正在工作，对于第二个选项，文件已上传到目录，但我无法将文件名信息添加到表中；我对这两个事实感到困惑：1）我收到此错误：finfo_file（/tmp/phpKB2h1A）：无法打开流：没有这样的文件或目录，2）var（tplfilename）为空

这是视图：

<?php
use yii\widgets\ActiveForm;
?>
    <?php if (Yii::$app->session->hasFlash('sminfo2')): ?>
        <div class="alert alert-success">
            <?= Yii::$app->session->getFlash('sminfo2');?>
        </div>

    <?php else: ?>

        <?php $form = ActiveForm::begin(['options' => ['enctype' => 'multipart/form-data']]) ?>

        <?= $form->field($model, 'tplfilename')->fileInput()->label('Choose your Template',['class'=>'label-class']) ?>
        <?= $form->field($model, 'destination')->radioList(array('1'=>'Filesystem','2'=>'Datatable'))->label('File store destination:') ?>

        <button>Submit</button>
        <?php ActiveForm::end() ?>
   <?php endif; ?>

这是控制器的功能：

    public function actionUploadtpl(){ 
        $model = new UploadtplForm();
        if (Yii::$app->request->isPost) {
            $model->destination = $_POST['UploadtplForm']['destination'];
            $model->tplfilename = UploadedFile::getInstance($model, 'tplfilename'); 
            if($model->destination == "1"){

                if ($model->upload()) {
                    // file is uploaded successfully
                    Yii::$app->session->setFlash("sminfo2", "Template file uploaded successfully to Filesystem");
                    return $this->refresh();                                            
                    //return;
                }//end of if model upload
            }//end of if model destination ==1
            else{
                if($model->upload()){
                    $model->save();
                    Yii::$app->session->setFlash("sminfo2", "Template file uploaded successfully to Datatable");
                    return $this->refresh();                                                     
                }
            }  
        }//end of isPost
        return $this->render('uploadtpl', ['model' => $model]);
    }//end of uploadtplform

这是模型：

<?php
namespace app\models;

use Yii;

use yii\base\Model;
use yii\web\UploadedFile;
use yii\db\ActiveRecord;

/**
 * @property int $id
 * @property string $tplfilename
**/

//class UploadtplForm extends Model
class UploadtplForm extends \yii\db\ActiveRecord
{
    /**
     * @var UploadedFile
     */
    public $tplfilename; //upload filename
    public $destination; //set by user on view: upload the file to filesystem or datatable    

    public static function tableName(){
        return 'templates';
    }

    public function rules()
    {
        return [
            [['tplfilename'], 'file', 'skipOnEmpty' => false, 'extensions' => 'php'],
        ];
    }

    public function upload()
    {
        /*
        if ($this->validate()) {
            $this->tplFile->saveAs('mail/views' . $this->tplFile->baseName . '.' . $this->tplFile->extension);
            return true;
        } else {
            return false;
        }
        */
            //store using filesystem
            $this->tplfilename->saveAs('../mail/views/' . $this->tplfilename->baseName . '.' . $this->tplfilename->extension);
            return true;                    
    }//end of upload function

    public function attributeLabels()
    {
        return [
            'id' => 'ID',
            'tplfilename' => 'File name',
         ];
    }

}
?>

想请教一下如何实现上传文件并在数据表中记录文件名，大部分问题都是关于这一行：$model->save()。

Answer 1

这是我的模型，就像一个例子：

/*
     * Upload image
     * @params $url Url where to upload
     * @return filename
     */
    public function upload($url, $image_name)
    {
        try{
            if ($this->validate()) {                 
                $this->imageFile->saveAs($url . $this->imageFile->baseName . '.' . $this->imageFile->extension);
                if($image_name){
                    FileHelper::unlink($url . $image_name);
                }
                return $this->imageFile->baseName . '.' . $this->imageFile->extension;
            }
        } catch (Exception $ex) {
            throw new Exception("Error while upload file.");
            return false;
        }

这是我的控制器：

/**
     * Upload image for product.
     * If update is successful, the browser will be redirected to the 'view' page.
     * @param integer $id
     * @return mixed
     */
    protected function Upload(UploadedFile $object, $name = null)
    {
        $user_id = $this->getUser()->id;
        $model = new UploadForm();
        $model->imageFile = $object;
        $path = Yii::getAlias('@frontend/uploads/user-files/user-') . $user_id;
        //check if directory exists
        if ( ! is_dir($path)) {
            FileHelper::createDirectory($path);
        }
        $url = $path . '/';
        
        return $model->upload($url, $name);
    }

在这里，我从操作中调用我的方法并保存模型：

$cart_item_option->option_type_value = $this->Upload(UploadedFile::getInstanceByName('image'), null);
$cart_item_option->save();