在Yii2上傳圖像和驗證

Question

我使用Yii2來創建簡單的上傳圖像並驗證圖像擴展。我已閱讀Yii2文檔，我不知道$model->validate()總是返回false。對我有什麼想法？

在我的模型文件，我設置的規則imageFile：

public function rules() 
    { 
     return [ 
      [['name', 'price', 'description', 'image_path'], 'required'], 
      [['price'], 'integer'], 
      [['description'], 'string'], 
      [['name', 'image_path'], 'string', 'max' => 255], 
      [['imageFile'], 'image', 'skipOnEmpty' => false, 'extensions' => 'png, jpg, jpeg'], 
     ]; 
    } 

而且在控制器的我的行爲指標：

if ($model->load(Yii::$app->request->post())) { 
    $model->imageFile = UploadedFile::getInstance($model, 'imageFile'); 
    if ($model->validate() && $model->save()) { 
     $model->imageFile->saveAs('uploads/' . Yii::$app->params['bonuslyRewards'] . '/' . $model->imageFile->baseName . '.' . $model->imageFile->extension); 
     $model->image_path = 'uploads/' . Yii::$app->params['bonuslyRewards'] . '/' . $model->imageFile->baseName . '.' . $model->imageFile->extension; 
     return $this->redirect(['view', 'id' => $model->id]); 
      } 
    } else { 
     return $this->render('create', [ 
      'model' => $model, 
     ]); 
    } 

Answer 1

我剛剛從行中刪除image_path：

[['name', 'price', 'description', 'image_path'], 'required'], 

現在沒問題。

Answer 2

變化，喜歡你的控制器文件....

if ($model->load(Yii::$app->request->post())) 
{ 
    $model->imageFile = UploadedFile::getInstance($model, 'imageFile');   
    $path=Yii::getAlias('@webroot').'/your Path/'; 
    if(!empty($model->imageFile)){ 
     $model->imageFile->saveAs($path.$model->imageFile); 
    }  
    if($model->save()){ 
     return $this->redirect(['view', 'id' => $model->id]); 
    } 
} 
return $this->render('create', [ 
     'model' => $model, 
    ]); 
}