Question

我正在使用图像扩展来进行图像重新调整大小，但它们不会根据我给出的参数调整大小。这是我的代码。我的代码中有什么错误或什么。调整大小的图像的尺寸等于“800 * 533” 但不完全等于800 * 600。

public function actionCreate()
    {
        $model=new Business;

            // Uncomment the following line if AJAX validation is needed
            // $this->performAjaxValidation($model);

            if(isset($_POST['Business']))
            {
                         $rnd = rand(0, 9999);  // generate random number between 0-9999

                $model->attributes = $_POST['Business'];

                $uploadedFile = CUploadedFile::getInstance($model, 'image');
                $fileName = "{$rnd}-{$uploadedFile}";  // random number + file name
                $model->image = $fileName;


                if ($model->save()) {
                     if(!empty($uploadedFile))  // check if uploaded file is set or not
                {
                    //$uploadedFile->saveAs(Yii::getPathOfAlias('webroot')."/img".$filename);
                    $uploadedFile->saveAs(Yii::app()->basePath . '/../img/' . $fileName);
                    $image = Yii::app()->image->load(Yii::app()->basePath . '/../img/' . $fileName);
                   $image->resize(800, 600);
                    $image->save(Yii::app()->basePath . '/../img/' . $fileName);
                    }

                    $this->redirect(array('view', 'id' => $model->id));
                }
            }

            $this->render('create', array(
                'model' => $model,
            ));
        }

Answer 1

首先建议。不要存储您可以使用的未调整大小的图像 CUploadedFile的tempName属性

 $image = Yii::app()->image->load($uploadedFile->tempName );
                   $image->resize(800, 600);
                    $image->save(Yii::app()->basePath . '/../img/' . $fileName);

关于调整大小我认为你必须计算调整大小的图片的大小。这是我的代码

 protected static function  getImgBox($img,$width,$height,$bySide,$boxType){
        $img_width=$img->getSize()->getWidth();
        $img_height=$img->getSize()->getHeight();
        $newWidth =0;
        $newHeight=0;

        switch($boxType){
            case self::BOX_TYPE_FILL:
            {
                $newWidth=$width;
                $newHeight=$height;
            }
                break;
            case self::BOX_TYPE_WO:{

                if($bySide==self::BY_SIDE_WIDTH) {

                    $newWidth = $width;
                    $newHeight = $img_height * $newWidth / $img_width;
                }

                if($bySide==self::BY_SIDE_HEIGHT){
                    $newHeight=$height;
                    $newWidth = $img_width*$newHeight/$img_height;
                }


            }
                break;

            case self::BOX_TYPE_INSIDE:{

                $newWidth = $width;
                $newHeight = $img_height * $newWidth / $img_width;

                if($newHeight>=$height){
                    $newHeight=$height;
                    $newWidth = $img_width*$newHeight/$img_height;
                }

            }

        }


        if($newHeight!=0 && $newWidth!=0){
            return new Box(ceil($newWidth),ceil($newHeight));

        }
        else
            return null;

    }

我不知道你使用的女巫延伸。我使用Imagine Extension for Yii 2

Answer 2

public void InsertProduct(List<string> _myName, 
                      List<int> _myAmount, 
                      List<int> _myPrice, string _date)
{
string connectionString = @"Data Source=MOSTAFA-PC;Initial Catalog=[Sales and Inventory System];Integrated Security=True";
string query = @"INSERT INTO dbo.product(Name, Amount, Price, [date]) 
                             VALUES(@Name, @Amount, @Price, @Date);";

using (SqlConnection Con = new SqlConnection(connectionString))
using (SqlCommand Cmd = new SqlCommand(query, Con))
{

    Cmd.Parameters.Add("@Name", SqlDbType.NVarChar);
    Cmd.Parameters.Add("@Amount", SqlDbType.Int);
    Cmd.Parameters.Add("@Price", SqlDbType.Int);
    Cmd.Parameters.Add("@Date", SqlDbType.DateTime).Value = Convert.ToDateTime(_date);

    Cmd.Connection = Con;
    Con.Open();

    int recordsToAdd = _myName.Count();
    for(int x = 0; x < recordsToAdd; x++)
    {
        Cmd.Parameters["@Name"].Value = _myName[x];
        Cmd.Parameters["@Amount"].Value = _myAmount[x];
        Cmd.Parameters["@Price"].Value = _myPrice[x];
        Cmd.ExecuteNonQuery();
    }
}

Yii：为什么图像没有正确调整大小？

2 个答案: