gistfile1.txt

// CouplesTable.php

$this->addBehavior('Josegonzalez/Upload.Upload', [
    'photo' => [
        'fields' => [
            // 'dir' => Configure::read('Media.basePath'), // defaults to `dir`\
            'dir' => 'photo_dir', // defaults to `dir`
            'size' => 'photo_size', // defaults to `size`
            'type' => 'photo_type', // d
        ]
    ],
]);

// add.php

echo $this->Form->control('photo', ['type' => 'file']);