kohana 3 incorporate file validate in orm - kohana

Question

I cant figure out how to add file validation code to the orm model
As the code is now the text inputs are validated in the orm, but the file has no validation on it at all. I was wondering if it was possible to merge the file validation in the 'profile' model where I have the text validation?
Here is the code in my controller
public function action_public_edit()
{
$content = View::factory('profile/public_edit')
->bind('user', $user)
->bind('profile', $profile)
->bind('errors', $errors);
$user = Auth::instance()->get_user();
$profile = $user->profiles;
$this->template->content = $content;
if ($_POST)
{
if ($profile->values($_POST)->check())
{
$picture = Upload::save($_FILES['profile_picture']);
// Resize, sharpen, and save the image
Image::factory($picture)
->resize(100, 100, Image::WIDTH)
->save();
$profile->profile_picture = basename($picture);
$profile->save();
$redirect = "profile/private";
Request::instance()->redirect($redirect);
}
else
{
$errors = $profile->validate()->errors('profile/public_edit');
}
}
}
And the ORM model
protected $_belongs_to = array('user' => array());
protected $_rules = array(
'first_name' => array(
'not_empty' => NULL,
),
'last_name' => array(
'not_empty' => NULL,
),

Answer 1

You don't need to check() if you save() later - save will do the checking and throw ORM_Validation_Exception if validation is not passed. I suggest to create a function in your model for saving - move the lines after check() to this model. In controller you'll only need to write:
if ($this->request->method() === 'POST')
{
$errors = $profile->upload('profile_picture');
if (empty($errors))
{
try
{
$profile->your_save_function();
$this->request->redirect('profile/private');
}
catch (ORM_Validation_Exception $e)
{
$errors = $e->errors('profile');
}
}
}
In your model:
public function your_save_function()
{
// Do your stuff before uploading the picture
// Save the model
$this->save();
}
public function upload($filename)
{
// Set the default upload directory
Upload::$default_directory = 'your_path';
// Validate the file first
$validation = Validation::factory($_FILES)
->rules($filename, array(
array('not_empty'),
array('Upload::not_empty'),
array('Upload::valid'),
array('Upload::type', array(':value', array('your_valid_extensions'))),
array('Upload::size', array(':value', 'your_max_size')),
));
// Validate and upload OK
if ($validation->check())
{
$picture = Upload::save($_FILES[$filename]);
// Resize, sharpen, and save the image
Image::factory($picture)
->resize(100, 100, Image::WIDTH)
->save();
$this->profile_picture = basename($picture);
}
else
{
return $validation->errors('upload');
}
}
Much simpler and cleaner code.