textfield.php

См. документацию.

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

class TextField extends StringField
{
    protected $long = false;

    function __construct($name, $parameters = array())
    {
        parent::__construct($name, $parameters);
 
        $this->long = isset($parameters['long']) && (bool)$parameters['long'];
    }

    public function configureLong($long = true)
    {
        $this->long = (bool)$long;
        return $this;
    }

    public function isLong()
    {
        return $this->long;
    }

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

    public function convertValueToDb($value)
    {
        if ($value instanceof SqlExpression)
        {
            return $value;
        }
 
        return $value === null && $this->is_nullable
            ? $value
            : $this->getConnection()->getSqlHelper()->convertToDbText($value);
    }
 
    public function isValueEmpty($value)
    {
        if ($this->isSerialized() && is_array($value))
        {
            return false;
        }
 
        return parent::isValueEmpty($value);
    }
}