aol/transformers

<?php

namespace Aol\Transformers\Utilities;

use Aol\Transformers\AbstractDefinitionTrait;

trait UtilityTrait
{
    use AbstractDefinitionTrait;

    /**
     * Defines a property that is stored as JSON. Expands to an array in app.
     *
     * @param string $app_name     Property name in application context.
     * @param string $storage_name Property name storage context.
     */
    protected  function defineJson($app_name, $storage_name)
    {
        $this->define($app_name, $storage_name, 'json_decode', 'json_encode', [true]);
    }

    /**
     * @param string $app_name     Property name in application context.
     * @param string $storage_name Property name storage context.
     * @param array  $mask
     */
    protected  function defineMask($app_name, $storage_name, $mask)
    {
        $mask_flip = array_flip($mask);
        $bitmask = function($value, $mask) {
            return isset($mask[$value]) ? $mask[$value] : null;
        };

        $this->define(
            $app_name,
            $storage_name,
            $bitmask,
            $bitmask,
            [$mask],
            [$mask_flip]
        );
    }
}