function testKeyGenerator()
{
$this->assertEquals('b', getNextKey('a'), 'String after a is not "b"');
$this->assertEquals('aa', getNextKey('9'), 'Key after 9 is not "aa"');
$this->assertEquals('ijeue', getNextKey('ijeud'), 'Key after ijeud is not "ijeue"');
$this->assertEquals('12346', getNextKey('12345'), 'Key after 12345 is not "12346"');
$this->assertEquals('7dhfgbcvdfgftdyhg', getNextKey('7dhfgbcvdfgftdyhf'), 'Key after 7dhfgbcvdfgftdyhg is not "7dhfgbcvdfgftdyhg"');
}
function getNextKey($key = null, $tail = '')
{
global $range, $trans;
// bad
if ($key === null) {
$key = getLastKey();
}
if (empty($key)) {
return "a{$tail}";
}
$keylen = strlen($key);
$lastChar = $key[$keylen - 1];
if ($lastChar != '9') {
return substr($key, 0, $keylen - 1) . $range[$trans[$lastChar] + 1] . $tail;
} else {
return getNextKey(substr($key, 0, -1), "a{$tail}");
}
}
/**
* Checks if there is a next db to be dumped
*
* Sets the global flag $dump['backup_done']
*
* @return void
*/
function checkForNextDB()
{
global $dump;
// a check, if another db should be saved is at the end of the script
// backup of actual db is done -> lets check if there is more to do
$nextDb = getNextKey($dump['databases'], $dump['db_actual']);
if ($nextDb !== false) {
$dump['backup_done'] = 0;
//-1 instead of 0 is needed for the execution of command before backup
$dump['table_offset'] = -1;
$dump['db_actual'] = $nextDb;
$dump['part_offset'] = $dump['part'] - 1;
} else {
$dump['backup_done'] = 1;
$dump['table_offset_total']--;
}
}
