我只是尝试使用模型上传文件.我在当前情况下得到异常消息(参见下面的model / controller / view):
CException
MyFile and its behaviors do not have a method or closure named "save".
如果我的模型扩展了CActiveRecord而不是CFormModel,则会出现另一个异常:
CDbException
The table "MyFile" for active record class "MyFile" cannot be found in the database.
我的错是什么?这些是文件:
型号:MyFile.PHP
class MyFile extends CFormModel {
public $image;
public function rules () {
return array (
array ('image', 'file', 'types' => 'gif, jpg, png'),
);
}
}
CONTROLLER:MyFileController.PHP
class MyFileController extends CController {
public function actionCreate() {
$model = new MyFile;
if(isset($_POST['MyFile'])) {
$model->attributes=$_POST['MyFile'];
$model->image=CUploadedFile::getInstance($model,'image');
if($model->save()) {
$path = Yii::app()->runtimePath.'/temp/uploadDirectory/'.$model->image;
$model->image->saveAs($path);
}
}
$this->render('create', array('model'=>$model));
}
}
查看:create.PHP
<h1>File-Upload</h1>
<?PHP
echo CHtml::form('','post',array('enctype'=>'multipart/form-data'));
echo CHtml::activeFileField($model, 'image');
echo CHtml::submitButton('abschicken', array('name' => 'submit'));
echo CHtml::endForm();
?>
解决方法:
CFormModel没有名为save()的方法,如果你想调用它你必须实现它,但你想要的是使用validate方法
如果MyFile没有相关的db表,那么它不应该扩展CActiveRecord.
您可以通过调用validate()来验证上传的图像是gif,png还是jpg:
class MyFileController extends CController {
public function actionCreate() {
$model = new MyFile;
if(isset($_POST['MyFile'])) {
$model->attributes=$_POST['MyFile'];
$model->image=CUploadedFile::getInstance($model,'image');
if($model->validate()) {
//The image is valid, you can save it
$path = Yii::app()->runtimePath.'/temp/uploadDirectory/'.$model->image;
$model->image->saveAs($path);
}
$this->render('create', array('model'=>$model));
}
}
}
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