integerfield.php

См. документацию.

<?php
 
namespace Bitrix\Main\ORM\Fields;
 
use Bitrix\Main\DB\SqlExpression;

class IntegerField extends ScalarField
{
    protected $size = 4;

    function __construct($name, $parameters = array())
    {
        parent::__construct($name, $parameters);
 
        if(isset($parameters['size']) && intval($parameters['size']) > 0)
        {
            $this->size = intval($parameters['size']);
        }
    }

    public function configureSize($size)
    {
        $this->size = (int)$size;
        return $this;
    }

    public function getSize()
    {
        return $this->size;
    }

    public function cast($value)
    {
        if ($this->is_nullable && $value === null)
        {
            return $value;
        }
 
        if ($value instanceof SqlExpression)
        {
            return $value;
        }
 
        return (int) $value;
    }

    public function convertValueFromDb($value)
    {
        return $this->getConnection()->getSqlHelper()->convertFromDbInteger($value);
    }

    public function convertValueToDb($value)
    {
        if ($value instanceof SqlExpression)
        {
            return $value;
        }
 
        return $value === null && $this->is_nullable
            ? $value
            : $this->getConnection()->getSqlHelper()->convertToDbInteger($value, $this->size);
    }

    public function getGetterTypeHint()
    {
        return $this->getNullableTypeHint('\\int');
    }

    public function getSetterTypeHint()
    {
        return $this->getNullableTypeHint('\\int');
    }
}