public function query($sql, $table = null)
{
// 判斷要用 Master 還是 Slave
$type = 'master';
if (!Pix_Table::$_force_master and preg_match('#^SELECT #', strtoupper($sql))) {
$type = 'slave';
}
if (Pix_Setting::get('Table:ExplainFileSortEnable')) {
if (preg_match('#^SELECT #', strtoupper($sql))) {
$res = $this->_getLink($type)->query("EXPLAIN {$sql}");
$row = $res->fetch_assoc();
if (preg_match('#Using filesort#', $row['Extra'])) {
trigger_error("Using Filesort Query {$sql}", E_USER_WARNING);
}
$res->free_result();
}
}
if (Pix_Setting::get('Table:SQLNoCache')) {
if (preg_match('#^SELECT #', strtoupper($sql))) {
$sql = 'SELECT SQL_NO_CACHE ' . substr($sql, 7);
}
}
// 加上 Query Comment
if ($comment = Pix_Table::getQueryComment()) {
$sql = trim($sql, '; ') . ' #' . $comment;
}
for ($i = 0; $i < 3; $i++) {
if (!($link = $this->_getLink($type))) {
throw new Exception('找不到 Link');
}
$starttime = microtime(true);
$res = $link->query($sql);
$this->insert_id = $link->insert_id;
$delta = microtime(true) - $starttime;
if (array_key_exists(Pix_Table::LOG_QUERY, Pix_Table::$_log_groups) and Pix_Table::$_log_groups[Pix_Table::LOG_QUERY]) {
Pix_Table::debug(sprintf("[%s-%s](%f)%s", strval($link->host_info), $type, $delta, $sql));
} elseif ($t = Pix_Table::getLongQueryTime() and $delta > $t) {
Pix_Table::debug(sprintf("[%s-%s](%f)%s", strval($link->host_info), $type, $delta, $sql));
}
if ($res === false) {
if ($errno = $link->errno) {
$message = (is_null($table) ? '' : "Table: {$table->getClass()}") . "SQL Error: ({$errno}){$link->error} " . substr($sql, 0, 128);
switch ($errno) {
case 1146:
throw new Pix_Table_TableNotFoundException($message);
case 1062:
throw new Pix_Table_DuplicateException((is_null($table) ? '' : "(Table: {$table->getClass()})") . $link->error, $errno);
case 1406:
throw new Pix_Table_DataTooLongException($message);
case 2006:
// MySQL server gone away
// MySQL server gone away
case 2013:
// Lost connection to MySQL server during query
trigger_error("Pix_Table " . $message, E_USER_WARNING);
$this->resetConnect();
continue 2;
}
}
throw new Pix_Table_Exception($message);
}
if ($link->warning_count) {
$e = $link->get_warnings();
do {
if (1592 == $e->errno) {
continue;
}
if (Pix_Table::$_throw_incorrect_string_exception and 1366 == $e->errno) {
throw new Pix_Table_IncorrectStringException($e->message);
}
trigger_error("Pix_Table " . (is_null($table) ? '' : "Table: {$table->getClass()}") . "SQL Warning: ({$e->errno}){$e->message} " . substr($sql, 0, 128), E_USER_WARNING);
} while ($e->next());
}
return $res;
}
throw new Pix_Table_Exception("query 三次失敗");
}
/**
* 測試未指定 DropTableEnable 必需要 dropTable 失敗
*
* @access public
*/
public function testDropTableProtect()
{
$old_value = Pix_Setting::get('Table:DropTableEnable');
Pix_Setting::set('Table:DropTableEnable', false);
try {
Pix_Table_TableTest_Table::dropTable();
$this->assertTrue(false);
} catch (Pix_Table_Exception $e) {
$this->assertTrue(true);
}
Pix_Setting::set('Table:DropTableEnable', $old_value);
}
/**
* dropTable 從資料庫內移除 $table 這個 Table
*
* @param Pix_Table $table
* @access public
* @return void
*/
public function dropTable($table)
{
if (!Pix_Setting::get('Table:DropTableEnable')) {
throw new Pix_Table_Exception("要 DROP TABLE 前請加上 Pix_Setting::set('Table:DropTableEnable', true);");
}
$sql = "DROP TABLE " . $this->column_quote($table->getTableName());
return $this->query($sql, $table);
}
/**
* dropTable 刪除這個 table
*
* @static
* @access public
* @return void
*/
public static function dropTable()
{
if (!Pix_Setting::get('Table:DropTableEnable')) {
throw new Pix_Table_Exception("要 DROP TABLE 前請加上 Pix_Setting::set('Table:DropTableEnable', true);");
}
$table = self::getTable();
$table->_cache_rows = array();
return $table->getDb()->dropTable($table);
}