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AphrontMySQLDatabaseConnection.php
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Mon, Sep 30, 04:53

AphrontMySQLDatabaseConnection.php
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<?php
/**
* @group storage
*/
final class AphrontMySQLDatabaseConnection
extends AphrontMySQLDatabaseConnectionBase {
public function escapeString($string) {
return mysql_real_escape_string($string, $this->requireConnection());
}
public function getInsertID() {
return mysql_insert_id($this->requireConnection());
}
public function getAffectedRows() {
return mysql_affected_rows($this->requireConnection());
}
protected function closeConnection() {
mysql_close($this->requireConnection());
}
protected function connect() {
if (!function_exists('mysql_connect')) {
// We have to '@' the actual call since it can spew all sorts of silly
// noise, but it will also silence fatals caused by not having MySQL
// installed, which has bitten me on three separate occasions. Make sure
// such failures are explicit and loud.
throw new Exception(
"About to call mysql_connect(), but the PHP MySQL extension is not ".
"available!");
}
$user = $this->getConfiguration('user');
$host = $this->getConfiguration('host');
$database = $this->getConfiguration('database');
$pass = $this->getConfiguration('pass');
if ($pass instanceof PhutilOpaqueEnvelope) {
$pass = $pass->openEnvelope();
}
$conn = @mysql_connect(
$host,
$user,
$pass,
$new_link = true,
$flags = 0);
if (!$conn) {
$errno = mysql_errno();
$error = mysql_error();
throw new AphrontQueryConnectionException(
"Attempt to connect to {$user}@{$host} failed with error ".
"#{$errno}: {$error}.", $errno);
}
if ($database !== null) {
$ret = @mysql_select_db($database, $conn);
if (!$ret) {
$this->throwQueryException($conn);
}
}
mysql_set_charset('utf8', $conn);
return $conn;
}
protected function rawQuery($raw_query) {
return @mysql_query($raw_query, $this->requireConnection());
}
/**
* @phutil-external-symbol function mysql_multi_query
* @phutil-external-symbol function mysql_fetch_result
* @phutil-external-symbol function mysql_more_results
* @phutil-external-symbol function mysql_next_result
*/
protected function rawQueries(array $raw_queries) {
$conn = $this->requireConnection();
$results = array();
if (!function_exists('mysql_multi_query')) {
foreach ($raw_queries as $key => $raw_query) {
$results[$key] = $this->processResult($this->rawQuery($raw_query));
}
return $results;
}
if (!mysql_multi_query(implode("\n;\n\n", $raw_queries), $conn)) {
$ex = $this->processResult(false);
return array_fill_keys(array_keys($raw_queries), $ex);
}
$processed_all = false;
foreach ($raw_queries as $key => $raw_query) {
$results[$key] = $this->processResult(@mysql_fetch_result($conn));
if (!mysql_more_results($conn)) {
$processed_all = true;
break;
}
mysql_next_result($conn);
}
if (!$processed_all) {
throw new Exception("There are some results left in the result set.");
}
return $results;
}
protected function freeResult($result) {
mysql_free_result($result);
}
public function supportsParallelQueries() {
// fb_parallel_query() doesn't support results with different columns.
return false;
}
/**
* @phutil-external-symbol function fb_parallel_query
*/
public function executeParallelQueries(
array $queries,
array $conns = array()) {
assert_instances_of($conns, 'AphrontMySQLDatabaseConnection');
$map = array();
$is_write = false;
foreach ($queries as $id => $query) {
$is_write = $is_write || $this->checkWrite($query);
$conn = idx($conns, $id, $this);
$host = $conn->getConfiguration('host');
$port = 0;
$match = null;
if (preg_match('/(.+):(.+)/', $host, $match)) {
list(, $host, $port) = $match;
}
$pass = $conn->getConfiguration('pass');
if ($pass instanceof PhutilOpaqueEnvelope) {
$pass = $pass->openEnvelope();
}
$map[$id] = array(
'sql' => $query,
'ip' => $host,
'port' => $port,
'username' => $conn->getConfiguration('user'),
'password' => $pass,
'db' => $conn->getConfiguration('database'),
);
}
$profiler = PhutilServiceProfiler::getInstance();
$call_id = $profiler->beginServiceCall(
array(
'type' => 'multi-query',
'queries' => $queries,
'write' => $is_write,
));
$map = fb_parallel_query($map);
$profiler->endServiceCall($call_id, array());
$results = array();
$pos = 0;
$err_pos = 0;
foreach ($queries as $id => $query) {
$errno = idx(idx($map, 'errno', array()), $err_pos);
$err_pos++;
if ($errno) {
try {
$this->throwQueryCodeException($errno, $map['error'][$id]);
} catch (Exception $ex) {
$results[$id] = $ex;
}
continue;
}
$results[$id] = $map['result'][$pos];
$pos++;
}
return $results;
}
protected function fetchAssoc($result) {
return mysql_fetch_assoc($result);
}
protected function getErrorCode($connection) {
return mysql_errno($connection);
}
protected function getErrorDescription($connection) {
return mysql_error($connection);
}
}

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