/**
* Turns the operations and their params into a string that can be used in a file name to cache an image.
*
* Suffix your image with the string generated by this method to be able to batch delete a file that has versions of it cached.
* The intended usage of this is to store the files as my_horse.thumbnail+width-100-height+100.jpg for example.
*
* So after upload store your image meta data in a db, give the filename the id of the record and suffix it
* with this string and store the string also in the db. In the views, if no further control over the image access is needd,
* you can simply direct linke the image like $this->Html->image('/images/05/04/61/my_horse.thumbnail+width-100-height+100.jpg');
*
* @param array $operations Imagine image operations
* @param array $separators Optional
* @param bool $hash
* @return string Filename compatible String representation of the operations
* @link http://support.microsoft.com/kb/177506
*/
public function operationsToString($operations, $separators = [], $hash = false)
{
return ImagineUtility::operationsToString($operations, $separators, $hash);
}
/**
* testOperationsToString
*
* @return void
*/
public function testOperationsToString()
{
$operations = ['thumbnail' => ['width' => 200, 'height' => 150]];
$result = ImagineUtility::operationsToString($operations);
$this->assertEquals($result, '.thumbnail+width-200+height-150');
}
