jidaikobo-shibata/a11yc

<?php
/**
 * A11yc\Model\DataFilter
 *
 * @package    part of A11yc
 * @author     Jidaikobo Inc.
 * @license    The MIT License (MIT)
 * @copyright  Jidaikobo Inc.
 * @link       http://www.jidaikobo.com
 */
namespace A11yc\Model;

trait DataFilter
{
    /**
     * filter
     *
     * @param Array $vals
     * @param Array $fields
     * @return Array
     */
    public static function filter($vals, $fields)
    {
        foreach ($fields as $k => $v)
        {
            $vals[$k] = Arr::get($vals, $k, $v);

            // type cast by default value
            if (is_int($v))
            {
                $vals[$k] = intval($vals[$k]);
                continue;
            }

            if (is_bool($v))
            {
                $vals[$k] = (bool) $vals[$k];
                continue;
            }

            if (is_string($v))
            {
                $vals[$k] = trim($vals[$k]);
                continue;
            }

            if (is_array($v) && is_array($vals[$k])) continue;
            if (empty($vals[$k]))
            {
                $vals[$k] = array();
                continue;
            }
            $vals[$k] = array($vals[$k]);
        }

        return $vals;
    }

    /**
     * deep filter
     *
     * @param Array $vals
     * @param Array $fields
     * @return Array
     */
    public static function deepfilter($vals, $fields)
    {
        foreach ($vals as $k => $v)
        {
            $vals[$k] = static::filter($v, $fields);
        }
        return $vals;
    }

    /**
     * post filter
     *
     * @param Array $fields
     * @return Array
     */
    public static function postfilter($fields)
    {
        $vals = array();
        foreach ($fields as $k => $v)
        {
            $vals[$k] = is_array($v) ? Input::postArr($k, $v) : Input::post($k, $v);
        }
        return static::filter($vals, $fields);
    }
}