/**
* Override this method to take certain actions before the data is saved
*
* @uses System::mkdir
* @uses Upload::save
* @uses Debug::path
* @uses File::getUnique
*/
protected function before_save()
{
if (isset($_FILES['image']['name']) and !empty($_FILES['image']['name'])) {
// create directory if not
System::mkdir($this->_image_path);
// delete previous image if exists, to cleanup stale images
$this->_delete_image();
// generate a unique filename to avoid conflicts
$filename = File::getUnique($_FILES['image']['name']);
if ($file = Upload::save($_FILES['image'], $filename, $this->_image_path)) {
$this->image = $filename;
}
}
}
/**
* Picture validation for image upload
*
* @param array $file $_FILES item
* @param string $upload_dir Relative upload dir [Optional]
*
* Example:
* ~~~
* $filepath = Upload::uploadImage($_FILES);
* ~~~
*
* @since 1.2.0
*
* @return NULL|string NULL when filed, otherwise file path
*
* @uses System::mkdir
* @uses Message::error
* @uses Log::error
* @uses Upload::valid
* @uses Upload::save
* @uses Config::get
* @uses File::getUnique
*/
public static function uploadImage($file, $upload_dir = NULL)
{
if (is_null($upload_dir)) {
$upload_dir = Config::get('media.upload_dir', 'media/pictures');
}
$picture_path = APPPATH . $upload_dir;
$valid_formats = Config::get('media.supported_image_formats', array('jpg', 'gif', 'png'));
$save = TRUE;
if (!is_dir($picture_path)) {
if (!System::mkdir($picture_path)) {
Message::error(__('Failed to create directory %dir for uploading picture.'));
Log::error('Failed to create directory :dir for uploading picture.', array(':dir' => $picture_path));
$save = FALSE;
}
}
// Check if there is an uploaded file and valid type
if ($save and self::valid($file) and self::type($file, $valid_formats) and self::size($file, self::getUploadMaxFilesize())) {
$filename = File::getUnique($file['name']) . '.' . pathinfo($file['name'], PATHINFO_EXTENSION);
$path = self::save($file, $filename, $picture_path);
if ($path) {
return $upload_dir . DS . $filename;
}
}
return NULL;
}
