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将图像上载到数据库
原标题:Uploading images to database

I am quite new to Yii and I m having some problems.

I m trying to upload images to the database following the wiki. However, I can t seem to make it work. It always sees that there is nothing being uploaded.

这里是我的模式守则:

public $uploadedFile;

/**
* Saves the name, size, type and data of the uploaded file
*/
public function beforeSave()
{
    if($file=CUploadedFile::getInstance($this, uploadedFile ))
    {
        $this->image_name=$file->name;
        $this->image_type=$file->type;
        $this->image_size=$file->size;
        $this->image=file_get_contents($file->tempName);
    }
    return parent::beforeSave();
}

Controller for Create:

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

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

    if(isset($_POST[ Subdivision ]))
    {
        $model->attributes=$_POST[ Subdivision ];
        $model->image = CUploadedFile::getInstance($this, image );

        if($model->save())
            $this->redirect(array( view , id =>$model->subdivision));
    }

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

和我的形式守则:

    <div class="row">
    <?php echo $form->labelEx($model, uploadedFile ); ?>
    <?php echo $form->fileField($model, uploadedFile ); ?>
    <?php echo $form->error($model, uploadedFile ); ?>
    </div>

谁能帮助?

问题回答

无需在<条码>上下行<>。

$model->image = CUploadedFile::getInstance($this, image ); // remove it

您的《专业资格考试》处理工作应当像样。

if (isset($_POST[ Subdivision ]))
{
    $model->attributes = $_POST[ Subdivision ];
    if ($model->save())
        $this->redirect(array( view , id =>$model->subdivision));
}

还确保数据库中的<代码>image领域有相应的BLOB类型储存双亲数据。


Edit, working sample

<>Model(只剩下重要部分)

public $uploadedFile;

public function rules()
{
    return array(
        array( uploadedFile ,  file ,  types => jpg, gif, png ),
        array( image_name,image_type,image_size,image ,  safe )
    );
}

public function beforeSave()
{
    if ($file = CUploadedFile::getInstance($this,  uploadedFile ))
    {
        $this->image_name = $file->name;
        $this->image_type = $file->type;
        $this->image_size = $file->size;
        $this->image = file_get_contents($file->tempName);
    }

    return parent::beforeSave();
}

<><><><><>><>>>><>>>>>>

public function actionIndex()
{
    $model = new User(); /* I called my model User in your case it s Subdivision */

    if (isset($_POST[ User ]))
    {
        $model->attributes = $_POST[ User ];
        $model->image = CUploadedFile::getInstance($this,  image );

        if ($model->save())
            $this->redirect(array( index ));
    }

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

<?php $form = $this->beginWidget( CActiveForm , array(
     htmlOptions  => array( enctype  =>  multipart/form-data )
)); ?>
    <div class="row">
        <?php echo $form->labelEx($model,  uploadedFile ); ?>
        <?php echo $form->fileField($model,  uploadedFile ); ?>
        <?php echo $form->error($model,  uploadedFile ); ?>
    </div>
    <input type="submit" value="Save">
<?php $this->endWidget(); ?>

www.un.org/Depts/DGACM/index_spanish.htm 储蓄法 图2

<><><>>>>

public function beforeSave()
        {
            if($file=CUploadedFile::getInstance($this, uploadedFile ))
            {
                $this->image=$file->name;
                $this->image=$file->type;
                $this->image=$file->size;
                $this->image=file_get_contents($file->tempName);
            }

        return parent::beforeSave();
        }

<>>Form

<?php $form = $this->beginWidget( CActiveForm , array(
     htmlOptions  => array( enctype  =>  multipart/form-data )
)); ?>
    <div class="row">
    <?php echo $form->labelEx($model, uploadedFile ); ?>
    <?php echo $form->fileField($model, uploadedFile ); ?>
    <?php echo $form->error($model, uploadedFile ); ?>
    </div>

在《示范公约》中添加这些规定

return array( array( uploadedFile ,  file ,  types => jpg, gif, png ),
                    array( image_name,image_type,image_size,image ,  safe ));

删除规则中要求的图像。





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