This is a behavior that helps manage the uploading of files. It'll upload the files to the specified directories. It will also delete the files in case of record being deleted as well as when the file is being re-uploaded for the same record. #####Usage and configuration Copy the file AttachableBehavior.php to your Model/Behavior folder. The minimum configuration you'll need to specify in your model will be:

public $actsAs = array(
	'Attachable' => array(
		'attachments' => array(
			'file' => array(
				'dir' => 'files',
			),
		),
		'baseDir' => 'img/uploads',
		'physicalName' => '{ID}-{FILENAME}',
		'types' => '*',
		'extensions' => '*',
		'maxSize' => 1048576,
	),
);

The above configuration specifies that the field file is an attachment field in the current model, which will be uploaded to baseDir + dir (img/uploads/files in our case). You can specify any directory name, that directory will be created in the webroot folder in the App. The physicalName field specifies the target name of the file.

There are three placeholders available currently:

1. {ID} - ID of the record for which the file is being uploaded.
2. {FILENAME} - Actual name of the file, sanitized.
3. {TIMESTAMP} - Timestamp of the time on the server.

The types is an array containing uploadable 'mime-types'. The extensions is an array containing the file extensions. Only the files with allowed extensions can be uploaded. The maxSize specifies the maximum uploadable size of the file.

For more configuration options, you can check the $defaults array in the behavior.