/**
* test thumbnail() method.
*
* @return void
*/
public function testThumbnail()
{
$this->assertNotEmpty(ImageToolbox::thumbnail($this->img1, 'thumbnail'));
$this->assertNotEmpty(ImageToolbox::thumbnail($this->img2, 'thumbnail'));
}
/**
* Returns an scaled version of the given file image.
*
* The following GET variables must be set on request:
*
* - file: The image's file name to scale.
* - size: A preview size name, sett `ImageToolbox::getPreviews()`
*
* If any of these variables is not present an exception will be throw.
*
* @param string $name EAV attribute name
* @return \Cake\Network\Response
* @throws \Cake\Network\Exception\NotFoundException When field instance
* is not found.
*/
public function thumbnail($name)
{
$this->loadModel('Field.FieldInstances');
$instance = $this->_getInstance($name);
if (!$instance) {
throw new NotFoundException(__d('field', 'Invalid field instance.'), 400);
}
if (empty($this->request->query['file'])) {
throw new NotFoundException(__d('field', 'Invalid file name.'), 400);
}
if (empty($this->request->query['size'])) {
throw new NotFoundException(__d('field', 'Invalid image size.'), 400);
}
$imagePath = normalizePath(WWW_ROOT . "/files/{$instance->settings['upload_folder']}/{$this->request->query['file']}");
$tmb = ImageToolbox::thumbnail($imagePath, $this->request->query['size']);
if ($tmb !== false) {
$this->response->file($tmb);
return $this->response;
}
throw new NotFoundException(__d('field', 'Thumbnail could not be found, check write permissions?'), 500);
}