在yii中更新记录而不删除上传的文件 [英] update a record without removing the uploaded file in yii

问题描述

我需要更新记录与更改或删除文件名（我的意思是文件），或重新插入文件，所以我怎么能做到这一点？

这里是我的 actionCreate ，我怎么写更新？

  public function actionCreate（）{
 $ model = new Page; 
 if（isset（$ _ POST ['Page']））{
 $ model-> attributes = $ _POST ['Page']; 
 $ model-> filename = CUploadedFile :: getInstance（$ model，'filename'）; 
 if（$ model-> save（））{
 if（$ model-> filename！== null）{
 $ dest = Yii :: getPathOfAlias（'application.uploads ）; 
 $ model-> filename-> saveAs（$ dest。'/'。$ model-> filename-> name）; 
 
 $ model-> save（）; 
 
 $ this-> redirect（array（'view'，'id'=> $ model-> id））; 
 
 $ b $ this-> render（'create'，array（
'model'=> $ model，
））; 
 
 
 
 
 
 $所以请任何人都可以找到解决方案
 <如果您不需要在编辑/更新中更改或删除文件名，则忽略文件名（和上传部分），假设文件已经上传，而您不需要希望更改/删除它。
  public function actionUpdate（$ id）{
 $ model = $ this-> ; loadModel（$ ID）; 
 $ file = $ model->文件名; 
 if（isset（$ _ POST ['Page']））{
 $ model-> attributes = $ _POST ['Page']; 
 $ model-> filename = $ file; 
 if（$ model-> save（））{
 $ this-> redirect（array（'view'，'id'=> $ model-> id））; 
 
 $ b $ this-> render（'create'，array（
'model'=> $ model，
））; 
} 
  
 
I need to UPDATE record with out changing or deleting filename(i mean file) , OR reinsert file again so how i can do this?      

here is my actionCreate, How i can write update? 

public function actionCreate() {
    $model = new Page;
    if (isset($_POST['Page'])) {
        $model->attributes = $_POST['Page'];
        $model->filename = CUploadedFile::getInstance($model, 'filename');
        if ($model->save()) {
            if ($model->filename !== null) {
                $dest = Yii::getPathOfAlias('application.uploads');
                $model->filename->saveAs($dest . '/' . $model->filename->name);

                $model->save();
            }
            $this->redirect(array('view', 'id' => $model->id));
        }
    }
    $this->render('create', array(
        'model' => $model,
    ));
}
So Please can anyone find a solution
解决方案
If you don't need to change or delete filename in edit/update then ignore filename (and upload part) assuming the file is alrready uploaded and you don't wish to change/delete it.
 public function actionUpdate($id) {
    $model = $this->loadModel($id);
    $file = $model->filename;
    if (isset($_POST['Page'])) {
        $model->attributes = $_POST['Page'];
        $model->filename = $file;
        if ($model->save()) {
            $this->redirect(array('view', 'id' => $model->id));
        }
    }
    $this->render('create', array(
        'model' => $model,
    ));
}


                        
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