CCrmProductRestProxy::innerUpdate

protected function innerUpdate($ID, &$fields, &$errors, array $params = null)
{
	if(!is_array($fields))
	{
		throw new RestException("The parameter 'fields' must be array.");
	}

	if(!CModule::IncludeModule('iblock'))
	{
		throw new RestException('Could not load iblock module.');
	}

	if(!CCrmProduct::CheckUpdatePermission($ID))
	{
		$errors[] = 'Access denied.';
		return false;
	}

	$catalogID = CCrmCatalog::GetDefaultID();
	if($catalogID <= 0)
	{
		$errors[] = 'Product catalog is not found.';
		return false;
	}

	//EnsureDefaultCatalogScope will check if product exists in default catalog
	if(!CCrmProduct::EnsureDefaultCatalogScope($ID))
	{
		$errors[] = 'Product is not found';
		return false;
	}

	if (isset($fields['DESCRIPTION']))
	{
		$descriptionType = '';
		if (isset($fields['DESCRIPTION_TYPE']))
		{
			$descriptionType = $fields['DESCRIPTION_TYPE'];
		}
		if ($descriptionType !== 'html' && $descriptionType !== 'text')
		{
			$res = CCrmProduct::GetList(array(), array('ID' => $ID), array('DESCRIPTION_TYPE'));
			if ($row = $res->Fetch())
			{
				$descriptionType = $row['DESCRIPTION_TYPE'];
			}
			unset($res, $row);
		}
		if ($descriptionType !== 'html' && $descriptionType !== 'text')
		{
			$descriptionType = 'text';
		}

		$description =
			(isset($fields['DESCRIPTION']) && is_string($fields['DESCRIPTION']))
				? trim($fields['DESCRIPTION'])
				: ''
		;
		$isNeedSanitize = (
			$descriptionType === 'html'
			&& $description !== ''
			&& mb_strpos($description, '<') !== false
		);
		if ($isNeedSanitize)
		{
			$description = self::sanitizeHtml($description);
		}
		$fields['DESCRIPTION'] = $description;
		unset($descriptionType, $description, $isNeedSanitize);
	}

	// Product properties
	$this->initializePropertiesInfo($catalogID);
	$propertyValues = array();
	foreach ($this->properties as $propId => $property)
	{
		if (isset($fields[$propId]))
			$propertyValues[$property['ID']] = $fields[$propId];
		unset($fields[$propId]);
	}
	if(!empty($propertyValues))
	{
		$fields['PROPERTY_VALUES'] = $propertyValues;
		$rsProperties = CIBlockElement::GetProperty(
			$catalogID,
			$ID,
			'sort', 'asc',
			array('ACTIVE' => 'Y', 'CHECK_PERMISSIONS' => 'N')
		);
		while($property = $rsProperties->Fetch())
		{
			if($property['PROPERTY_TYPE'] !== 'F' && !array_key_exists($property['ID'], $propertyValues))
			{
				if(!array_key_exists($property['ID'], $fields['PROPERTY_VALUES']))
					$fields['PROPERTY_VALUES'][$property['ID']] = array();

				$fields['PROPERTY_VALUES'][$property['ID']][$property['PROPERTY_VALUE_ID']] = array(
					'VALUE' => $property['VALUE'],
					'DESCRIPTION' => $property['DESCRIPTION']
				);
			}
		}
	}

	$result = CCrmProduct::Update($ID, $fields);
	if($result !== true)
	{
		$errors[] = CCrmProduct::GetLastError();
	}
	return $result;
}