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Thursday, April 25, 2013

How to upload a file using a model Yii

The Model 

First declare an attribute to store the file name in the model class (either a form model or an active record model). Also declare a file validation rule for this attribute to ensure a file is uploaded with specific extension name.
class Item extends CActiveRecord
    public $image;
    // ... other attributes
    public function rules()
        return array(
            array('image', 'file', 'types'=>'jpg, gif, png'),

The Controller 

Then, in the controller class define an action method to render the form and collect user-submitted data.
class ItemController extends CController
    public function actionCreate()
        $model=new Item;
                // redirect to success page
        $this->render('create', array('model'=>$model));

The View 

Finally, create the action view and generate a file upload field.
$form = $this->beginWidget(
        'id' => 'upload-form',
        'enableAjaxValidation' => false,
        'htmlOptions' => array('enctype' => 'multipart/form-data'),
// ...
echo $form->labelEx($model, 'image');
echo $form->fileField($model, 'image');
echo $form->error($model, 'image');
// ...

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