class.ilCharSelectorRadioGroupInputGUI.php

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<?php
/* Copyright (c) 1998-2013 ILIAS open source, Extended GPL, see docs/LICENSE */

class ilCharSelectorRadioGroupInputGUI extends ilRadioGroupInputGUI
{
    function checkInput()
    {
        global $lng;
        if (!parent::checkInput())
        {
            return false;
        }

        if ($_POST['char_selector_availability'] == ilCharSelectorConfig::ENABLED
            and trim(implode($_POST['char_selector_blocks'])) == ""
            and trim($_POST['char_selector_custom_items']) == '')
        {
            $this->setAlert($lng->txt("char_selector_msg_blocks_or_custom_needed"));
            return false;
        }
        else
        {
            return true;
        }
    }
}