CIMEvent::OnFileDelete

static function OnFileDelete($params)
{
	if (!in_array($params['MODULE_ID'], ['im', 'imopenlines']))
	{
		return true;
	}

	$result = IMModelChatTable::getList([
		'select' => ['ID', 'AUTHOR_ID'],
		'filter' => ['=AVATAR' => $params['ID']]
	]);
	while ($row = $result->fetch())
	{
		IMModelChatTable::update($row['ID'], ['AVATAR' => '']);
	}
}