Yii file field posting empty values - php

Question

I am a newbie in Yii, and I am trying to make an upload form in Yii, Please i need help.
Once the form post data to the controller every other post value is posted except for the file value.
i even tried checking for Errors with var_dump($model->image); and it returned this Error string '' (length=0) specifying an empty string like an image wasn't even posted at all.
This is my controller
class TestController extends Controller
{
public function actionIndex()
{
$model=new Test;
if(isset($_POST['Test']))
{
$model->attributes=$_POST['Test'];
if($model->save()){
var_dump($model->getErrors());
if ($model->image){
var_dump($model->image);
$uploadedFile=CUploadedFile::getInstance($model,'image');
$fileName = date("Y_m_d_H_i_s").$uploadedFile;
$model->image = $fileName;
if(!empty($uploadedFile)) // check if uploaded file is set or not
{
$uploadedFile->saveAs(Yii::getPathOfAlias('webroot').'/imagefolder/'.$fileName);
}
}
}
}
}
}
And this is my View
<?php $form=$this->beginWidget('CActiveForm', array(
'id'=>'test-form',
'htmlOptions' => array('enctype' => 'multipart/form-data'),
'enableAjaxValidation'=>false,
)); ?>
<?php echo CHtml::activeFileField($model,'image',array('id'=>'primaryupload')); ?>
<?php echo CHtml::submitButton($model->isNewRecord ? 'UPLOAD' : 'UPLOAD',array('id'=>'submit','class'=>'btn')); ?>
<?php $this->endWidget(); ?>
Any help will be appreciated. Because i am really frusrated at this point.

Answer 1

If you are only new to Yii and not in PHP, than you may know that uploaded files goes via $_FILES global variable and not via $_POST global variable. So to get uploaded file, you use
$uploadedFile = CUploadedFile::getInstance($model, 'image');
So your final code looks like this:
$post = Yii::app()->request->getPost('Test');
if ($post) {
$model->attributes = $post;
$uploadedFile = CUploadedFile::getInstance($model, 'image');
if ($uploadedFile) {
$imageName = date("Y_m_d_H_i_s").$uploadedFile->name;
$model->image = $imageName;
if ($model->save()) {
$uploadedFile->saveAs(Yii::getPathOfAlias('webroot').'/imagefolder/'.$imageName );
}
}

Answer 2

I think you should use $_FILES['image'] instead of $model->image.

Answer 3

As an option, you can "hardcode" file attribute in your form. Just:
<input type="file" id="yourid" name="yourname" />
Then in YourController, where you are parsing your POST data you could directly access to $_FILES['yourname'].
Not an elegant way, but simple and fast.
P.S.: if you are using $this->beginWidget in your view, then you should add to parameters
$this->beginWidget('CActiveForm', array(
...
'htmlOptions'=>array(
'enctype'=>'multipart/form-data'
),
));