ireadable.php

См. документацию.

<?php
/**
 * Bitrix Framework
 * @package    bitrix
 * @subpackage main
 * @copyright  2001-2017 Bitrix
 */
 
namespace Bitrix\Main\ORM\Fields;
 
/**
 * Interface for Entity Fields to be filtered by Query.
 * @package Bitrix\Main\ORM
 */
interface IReadable
{
    /**
     * Casts value strictly to field type.
     * Non-static because of field configuration (e.g. length for string or precision for float)
     *
     * @param mixed $value
     *
     * @return mixed
     */
    public function cast($value);
 
    /**
     * Returns value converted from SQL raw result.
     * Non-static because of dependency on Entity's Connection. Should use $this->getConnection() inside.
     *
     * @param mixed $value
     *
     * @return mixed
     */
    public function convertValueFromDb($value);
 
    /**
     * Returns raw SQL with escaped and quoted value.
     * Non-static because of dependency on Entity's Connection. Should use $this->getConnection() inside.
     *
     * @param mixed $value
     *
     * @return string
     */
    public function convertValueToDb($value);
}