Administrator / baucenter

  <?php
  
  namespace common\modules\product\models;
  
  use Yii;
  use yii\web\UploadedFile;
  
  /**
   * This is the model class for table "product_image".
   *
   * @property integer $product_image_id
   * @property integer $product_id

   * @property integer $product_variant_id

   * @property string $image
   * @property string $alt
   * @property string $title

   * @property Product $product

   * @property ProductVariant $productVariant

   */
  class ProductImage extends \yii\db\ActiveRecord
  {

      public $imageUpload;

      /**
       * @inheritdoc
       */
      public static function tableName()
      {
          return 'product_image';
      }
  
      /**
       * @inheritdoc
       */
      public function rules()
      {
          return [

              [['product_id'], 'required'],
              [['product_image_id', 'product_id', 'product_variant_id'], 'integer'],
              [['alt', 'title', 'image'], 'string', 'max' => 255],

              [['product_id'], 'exist', 'skipOnError' => true, 'targetClass' => Product::className(), 'targetAttribute' => ['product_id' => 'product_id']],

              [['product_variant_id'], 'exist', 'skipOnError' => true, 'targetClass' => ProductVariant::className(), 'targetAttribute' => ['product_variant_id' => 'product_variant_id']],
              [['imageUpload'], 'safe'],
              [['imageUpload'], 'file', 'extensions' => 'jpg, gif, png'],

          ];
      }
  
      /**
       * @inheritdoc
       */
      public function attributeLabels()
      {
          return [
              'product_image_id' => Yii::t('product', 'Product Image ID'),
              'product_id' => Yii::t('product', 'Product ID'),

              'product_variant_id' => Yii::t('product', 'Product Variant ID'),
              'product' => Yii::t('product', 'Product'),
              'product' => Yii::t('product', 'Product'),
              'product_variant' => Yii::t('product', 'Product Variant'),

              'image' => Yii::t('product', 'Image'),
              'alt' => Yii::t('product', 'Alt'),
              'title' => Yii::t('product', 'Title'),
          ];
      }
  
      /**
       * @return \yii\db\ActiveQuery
       */
      public function getProduct()
      {

          $return = $this->hasOne(Product::className(), ['product_id' => 'product_id']);
          if (empty($return)) {
              $return = $this->productVariant->product_id;
          }
          return $return;
      }
  
      /**
       * @return \yii\db\ActiveQuery
       */
      public function getProductVariant()
      {
          return $this->hasOne(Product::className(), ['product_variant_id' => 'product_variant_id']);

      }
  
      /**
       * @inheritdoc
       * @return ProductImageQuery the active query used by this AR class.
       */
      public static function find()
      {
          return new ProductImageQuery(get_called_class());
      }
  
      /**
       * fetch stored image file name with complete path
       * @return string
       */
      public function getImageFile()
      {

          return isset($this->image) ? '/images/products/' . $this->image : null;

      }
  
      /**
       * fetch stored image url
       * @return string
       */
      public function getImageUrl()
      {
          // return a default image placeholder if your source image is not found

          return isset($this->image) ? '/images/products/'. $this->image : 'default.jpg';

      }
  
      /**
       * Process upload of image
       *
       * @return mixed the uploaded image instance
       */
      public function uploadImage() {
          // get the uploaded file instance. for multiple file uploads
          // the following data will return an array (you may need to use
          // getInstances method)

          $image = UploadedFile::getInstance($this, 'imageUpload');

  
          // if no image was uploaded abort the upload
          if (empty($image)) {
              return false;
          }
  
          // store the source file name
          $this->filename = $image->name;
          $ext = end((explode(".", $image->name)));
  
          // generate a unique file name
          $this->image = Yii::$app->security->generateRandomString().".{$ext}";
  
          // the uploaded image instance
          return $image;
      }
  
      /**
       * Process deletion of image
       *
       * @return boolean the status of deletion
       */
      public function deleteImage() {
          $file = $this->getImageFile();
  
          // check if file exists on server
          if (empty($file) || !file_exists($file)) {
              return false;
          }
  
          // check if uploaded file can be deleted on server
          if (!unlink($file)) {
              return false;
          }
  
          // if deletion successful, reset your file attributes
          $this->image = null;
          $this->filename = null;
  
          return true;
      }
  }