etraxis / etraxis-obsolete

    debug_write_log(DEBUG_DUMP,  '[field_validate_date] $def_value  = ' . $def_value);

    // Check that field name and specified values are not empty.

    if (ustrlen($field_name) == 0 ||

        ustrlen($min_value)  == 0 ||

        ustrlen($max_value)  == 0)

    {

        debug_write_log(DEBUG_NOTICE, '[field_validate_date] At least one required field is empty.');

        return ERROR_INCOMPLETE_FORM;

    }

    // Check that specified values are integer.

    if (!is_intvalue($min_value) ||

    debug_write_log(DEBUG_DUMP,  '[field_validate_duration] $def_value  = ' . $def_value);

    // Check that field name and specified values are not empty.

    if (ustrlen($field_name) == 0 ||

        ustrlen($min_value)  == 0 ||

        ustrlen($max_value)  == 0)

    {

        debug_write_log(DEBUG_NOTICE, '[field_validate_duration] At least one required field is empty.');

        return ERROR_INCOMPLETE_FORM;

    }

    // Convert specified minimum and maximum duration values to amount of minutes.

    $min_duration = ustr2time($min_value);