*/
class dba {
-
- private $debug = 0;
- private $db;
- private $result;
- private $driver;
- public $connected = false;
- public $error = false;
- public $errorno = 0;
- public $affected_rows = 0;
- private $_server_info = '';
+ public static $connected = true;
+
+ private static $_server_info = '';
+ private static $db;
+ private static $driver;
+ private static $error = false;
+ private static $errorno = 0;
+ private static $affected_rows = 0;
private static $in_transaction = false;
- private static $dbo;
private static $relation = array();
- function __construct($serveraddr, $user, $pass, $db, $install = false) {
+ public static function connect($serveraddr, $user, $pass, $db, $install = false) {
+ if (!is_null(self::$db)) {
+ return true;
+ }
+
$a = get_app();
$stamp1 = microtime(true);
$db = trim($db);
if (!(strlen($server) && strlen($user))) {
- $this->connected = false;
- $this->db = null;
- return;
+ self::$connected = false;
+ self::$db = null;
+ return false;
}
if ($install) {
if (strlen($server) && ($server !== 'localhost') && ($server !== '127.0.0.1')) {
if (! dns_get_record($server, DNS_A + DNS_CNAME + DNS_PTR)) {
- $this->error = sprintf(t('Cannot locate DNS info for database server \'%s\''), $server);
- $this->connected = false;
- $this->db = null;
- return;
+ self::$error = sprintf(t('Cannot locate DNS info for database server \'%s\''), $server);
+ self::$connected = false;
+ self::$db = null;
+ return false;
}
}
}
if (class_exists('\PDO') && in_array('mysql', PDO::getAvailableDrivers())) {
- $this->driver = 'pdo';
+ self::$driver = 'pdo';
$connect = "mysql:host=".$server.";dbname=".$db;
if (isset($port)) {
$connect .= ";charset=".$a->config["system"]["db_charset"];
}
try {
- $this->db = @new PDO($connect, $user, $pass);
- $this->connected = true;
+ self::$db = @new PDO($connect, $user, $pass);
+ self::$connected = true;
} catch (PDOException $e) {
- $this->connected = false;
+ self::$connected = false;
}
}
- if (!$this->connected && class_exists('mysqli')) {
- $this->driver = 'mysqli';
- $this->db = @new mysqli($server, $user, $pass, $db, $port);
+ if (!self::$connected && class_exists('mysqli')) {
+ self::$driver = 'mysqli';
+ self::$db = @new mysqli($server, $user, $pass, $db, $port);
if (!mysqli_connect_errno()) {
- $this->connected = true;
+ self::$connected = true;
if (isset($a->config["system"]["db_charset"])) {
- $this->db->set_charset($a->config["system"]["db_charset"]);
+ self::$db->set_charset($a->config["system"]["db_charset"]);
}
}
}
- if (!$this->connected && function_exists('mysql_connect')) {
- $this->driver = 'mysql';
- $this->db = mysql_connect($serveraddr, $user, $pass);
- if ($this->db && mysql_select_db($db, $this->db)) {
- $this->connected = true;
+ if (!self::$connected && function_exists('mysql_connect')) {
+ self::$driver = 'mysql';
+ self::$db = mysql_connect($serveraddr, $user, $pass);
+ if (self::$db && mysql_select_db($db, self::$db)) {
+ self::$connected = true;
if (isset($a->config["system"]["db_charset"])) {
- mysql_set_charset($a->config["system"]["db_charset"], $this->db);
+ mysql_set_charset($a->config["system"]["db_charset"], self::$db);
}
}
}
// No suitable SQL driver was found.
- if (!$this->connected) {
- $this->db = null;
+ if (!self::$connected) {
+ self::$db = null;
if (!$install) {
system_unavailable();
}
}
$a->save_timestamp($stamp1, "network");
- self::$dbo = $this;
- }
-
- /**
- * @brief Checks if the database object is initialized
- *
- * This is a possible bugfix for something that doesn't occur for me.
- * There seems to be situations, where the object isn't initialized.
- */
- private static function initialize() {
- if (!is_object(self::$dbo)) {
- global $db;
- self::$dbo = $db;
- if (!is_object(self::$dbo)) {
- die('Database is uninitialized!');
- }
- }
+ return true;
}
/**
*
* @return string
*/
- public function server_info() {
- if ($this->_server_info == '') {
- switch ($this->driver) {
+ public static function server_info() {
+ if (self::$_server_info == '') {
+ switch (self::$driver) {
case 'pdo':
- $this->_server_info = $this->db->getAttribute(PDO::ATTR_SERVER_VERSION);
+ self::$_server_info = self::$db->getAttribute(PDO::ATTR_SERVER_VERSION);
break;
case 'mysqli':
- $this->_server_info = $this->db->server_info;
+ self::$_server_info = self::$db->server_info;
break;
case 'mysql':
- $this->_server_info = mysql_get_server_info($this->db);
+ self::$_server_info = mysql_get_server_info(self::$db);
break;
}
}
- return $this->_server_info;
+ return self::$_server_info;
}
/**
*
* @return string
*/
- public function database_name() {
- $r = $this->q("SELECT DATABASE() AS `db`");
-
- return $r[0]['db'];
+ public static function database_name() {
+ $ret = self::p("SELECT DATABASE() AS `db`");
+ $data = self::inArray($ret);
+ return $data[0]['db'];
}
/**
*
* @param string $query The database query that will be analyzed
*/
- public function log_index($query) {
+ private static function log_index($query) {
$a = get_app();
if (empty($a->config["system"]["db_log_index"])) {
return;
}
- $r = $this->q("EXPLAIN ".$query);
+ $r = self::p("EXPLAIN ".$query);
if (!dbm::is_result($r)) {
return;
}
$watchlist = explode(',', $a->config["system"]["db_log_index_watch"]);
$blacklist = explode(',', $a->config["system"]["db_log_index_blacklist"]);
- foreach ($r AS $row) {
+ while ($row = dba::fetch($r)) {
if ((intval($a->config["system"]["db_loglimit_index"]) > 0)) {
$log = (in_array($row['key'], $watchlist) &&
($row['rows'] >= intval($a->config["system"]["db_loglimit_index"])));
}
}
- /**
- * @brief execute SQL query - deprecated
- *
- * Please use the dba:: functions instead:
- * dba::select, dba::exists, dba::insert
- * dba::delete, dba::update, dba::p, dba::e
- *
- * @param string $sql SQL query
- * @return array Query array
- */
- public function q($sql) {
- $ret = self::p($sql);
-
- if (is_bool($ret)) {
- return $ret;
- }
-
- $columns = self::columnCount($ret);
-
- $data = self::inArray($ret);
-
- if ((count($data) == 0) && ($columns == 0)) {
- return true;
- }
-
- return $data;
- }
-
- public function escape($str) {
- if ($this->db && $this->connected) {
- switch ($this->driver) {
- case 'pdo':
- return substr(@$this->db->quote($str, PDO::PARAM_STR), 1, -1);
- case 'mysqli':
- return @$this->db->real_escape_string($str);
- case 'mysql':
- return @mysql_real_escape_string($str,$this->db);
- }
+ public static function escape($str) {
+ switch (self::$driver) {
+ case 'pdo':
+ return substr(@self::$db->quote($str, PDO::PARAM_STR), 1, -1);
+ case 'mysqli':
+ return @self::$db->real_escape_string($str);
+ case 'mysql':
+ return @mysql_real_escape_string($str,self::$db);
}
}
- function connected() {
- switch ($this->driver) {
+ public static function connected() {
+ switch (self::$driver) {
case 'pdo':
// Not sure if this really is working like expected
- $connected = ($this->db->getAttribute(PDO::ATTR_CONNECTION_STATUS) != "");
+ $connected = (self::$db->getAttribute(PDO::ATTR_CONNECTION_STATUS) != "");
break;
case 'mysqli':
- $connected = $this->db->ping();
+ $connected = self::$db->ping();
break;
case 'mysql':
- $connected = mysql_ping($this->db);
+ $connected = mysql_ping(self::$db);
break;
}
return $connected;
}
- function __destruct() {
- if ($this->db) {
- switch ($this->driver) {
- case 'pdo':
- $this->db = null;
- break;
- case 'mysqli':
- $this->db->close();
- break;
- case 'mysql':
- mysql_close($this->db);
- break;
- }
- }
- }
-
/**
* @brief Replaces ANY_VALUE() function by MIN() function,
* if the database server does not support ANY_VALUE().
* @param string $sql An SQL string without the values
* @return string The input SQL string modified if necessary.
*/
- public function any_value_fallback($sql) {
- $server_info = $this->server_info();
+ public static function any_value_fallback($sql) {
+ $server_info = self::server_info();
if (version_compare($server_info, '5.7.5', '<') ||
(stripos($server_info, 'MariaDB') !== false)) {
$sql = str_ireplace('ANY_VALUE(', 'MIN(', $sql);
* @param string $sql An SQL string without the values
* @return string The input SQL string modified if necessary.
*/
- public function clean_query($sql) {
+ public static function clean_query($sql) {
$search = array("\t", "\n", "\r", " ");
$replace = array(' ', ' ', ' ', ' ');
do {
if (is_int($args[$param]) || is_float($args[$param])) {
$replace = intval($args[$param]);
} else {
- $replace = "'".self::$dbo->escape($args[$param])."'";
+ $replace = "'".self::escape($args[$param])."'";
}
$pos = strpos($sql, '?', $offset);
* @return object statement object
*/
public static function p($sql) {
- self::initialize();
-
$a = get_app();
$stamp1 = microtime(true);
$args[++$i] = $param;
}
- if (!self::$dbo || !self::$dbo->connected) {
+ if (!self::$connected) {
return false;
}
logger('Parameter mismatch. Query "'.$sql.'" - Parameters '.print_r($args, true), LOGGER_DEBUG);
}
- $sql = self::$dbo->clean_query($sql);
- $sql = self::$dbo->any_value_fallback($sql);
+ $sql = self::clean_query($sql);
+ $sql = self::any_value_fallback($sql);
$orig_sql = $sql;
$sql = "/*".System::callstack()." */ ".$sql;
}
- self::$dbo->error = '';
- self::$dbo->errorno = 0;
- self::$dbo->affected_rows = 0;
+ self::$error = '';
+ self::$errorno = 0;
+ self::$affected_rows = 0;
// We have to make some things different if this function is called from "e"
$trace = debug_backtrace(DEBUG_BACKTRACE_IGNORE_ARGS, 2);
// We are having an own error logging in the function "e"
$called_from_e = ($called_from['function'] == 'e');
- switch (self::$dbo->driver) {
+ switch (self::$driver) {
case 'pdo':
// If there are no arguments we use "query"
if (count($args) == 0) {
- if (!$retval = self::$dbo->db->query($sql)) {
- $errorInfo = self::$dbo->db->errorInfo();
- self::$dbo->error = $errorInfo[2];
- self::$dbo->errorno = $errorInfo[1];
+ if (!$retval = self::$db->query($sql)) {
+ $errorInfo = self::$db->errorInfo();
+ self::$error = $errorInfo[2];
+ self::$errorno = $errorInfo[1];
$retval = false;
break;
}
- self::$dbo->affected_rows = $retval->rowCount();
+ self::$affected_rows = $retval->rowCount();
break;
}
- if (!$stmt = self::$dbo->db->prepare($sql)) {
- $errorInfo = self::$dbo->db->errorInfo();
- self::$dbo->error = $errorInfo[2];
- self::$dbo->errorno = $errorInfo[1];
+ if (!$stmt = self::$db->prepare($sql)) {
+ $errorInfo = self::$db->errorInfo();
+ self::$error = $errorInfo[2];
+ self::$errorno = $errorInfo[1];
$retval = false;
break;
}
if (!$stmt->execute()) {
$errorInfo = $stmt->errorInfo();
- self::$dbo->error = $errorInfo[2];
- self::$dbo->errorno = $errorInfo[1];
+ self::$error = $errorInfo[2];
+ self::$errorno = $errorInfo[1];
$retval = false;
} else {
$retval = $stmt;
- self::$dbo->affected_rows = $retval->rowCount();
+ self::$affected_rows = $retval->rowCount();
}
break;
case 'mysqli':
// The fallback routine is called as well when there are no arguments
if (!$can_be_prepared || (count($args) == 0)) {
- $retval = self::$dbo->db->query(self::replace_parameters($sql, $args));
- if (self::$dbo->db->errno) {
- self::$dbo->error = self::$dbo->db->error;
- self::$dbo->errorno = self::$dbo->db->errno;
+ $retval = self::$db->query(self::replace_parameters($sql, $args));
+ if (self::$db->errno) {
+ self::$error = self::$db->error;
+ self::$errorno = self::$db->errno;
$retval = false;
} else {
if (isset($retval->num_rows)) {
- self::$dbo->affected_rows = $retval->num_rows;
+ self::$affected_rows = $retval->num_rows;
} else {
- self::$dbo->affected_rows = self::$dbo->db->affected_rows;
+ self::$affected_rows = self::$db->affected_rows;
}
}
break;
}
- $stmt = self::$dbo->db->stmt_init();
+ $stmt = self::$db->stmt_init();
if (!$stmt->prepare($sql)) {
- self::$dbo->error = $stmt->error;
- self::$dbo->errorno = $stmt->errno;
+ self::$error = $stmt->error;
+ self::$errorno = $stmt->errno;
$retval = false;
break;
}
}
if (!$stmt->execute()) {
- self::$dbo->error = self::$dbo->db->error;
- self::$dbo->errorno = self::$dbo->db->errno;
+ self::$error = self::$db->error;
+ self::$errorno = self::$db->errno;
$retval = false;
} else {
$stmt->store_result();
$retval = $stmt;
- self::$dbo->affected_rows = $retval->affected_rows;
+ self::$affected_rows = $retval->affected_rows;
}
break;
case 'mysql':
// For the old "mysql" functions we cannot use prepared statements
- $retval = mysql_query(self::replace_parameters($sql, $args), self::$dbo->db);
- if (mysql_errno(self::$dbo->db)) {
- self::$dbo->error = mysql_error(self::$dbo->db);
- self::$dbo->errorno = mysql_errno(self::$dbo->db);
+ $retval = mysql_query(self::replace_parameters($sql, $args), self::$db);
+ if (mysql_errno(self::$db)) {
+ self::$error = mysql_error(self::$db);
+ self::$errorno = mysql_errno(self::$db);
} else {
- self::$dbo->affected_rows = mysql_affected_rows($retval);
+ self::$affected_rows = mysql_affected_rows($retval);
// Due to missing mysql_* support this here wasn't tested at all
// See here: http://php.net/manual/en/function.mysql-num-rows.php
- if (self::$dbo->affected_rows <= 0) {
- self::$dbo->affected_rows = mysql_num_rows($retval);
+ if (self::$affected_rows <= 0) {
+ self::$affected_rows = mysql_num_rows($retval);
}
}
break;
}
// We are having an own error logging in the function "e"
- if ((self::$dbo->errorno != 0) && !$called_from_e) {
+ if ((self::$errorno != 0) && !$called_from_e) {
// We have to preserve the error code, somewhere in the logging it get lost
- $error = self::$dbo->error;
- $errorno = self::$dbo->errorno;
+ $error = self::$error;
+ $errorno = self::$errorno;
- logger('DB Error '.self::$dbo->errorno.': '.self::$dbo->error."\n".
+ logger('DB Error '.self::$errorno.': '.self::$error."\n".
System::callstack(8)."\n".self::replace_parameters($sql, $params));
- self::$dbo->error = $error;
- self::$dbo->errorno = $errorno;
+ self::$error = $error;
+ self::$errorno = $errorno;
}
$a->save_timestamp($stamp1, 'database');
* @return boolean Was the query successfull? False is returned only if an error occurred
*/
public static function e($sql) {
- self::initialize();
-
$a = get_app();
$stamp = microtime(true);
self::close($stmt);
- } while ((self::$dbo->errorno == 1213) && (--$timeout > 0));
+ } while ((self::$errorno == 1213) && (--$timeout > 0));
- if (self::$dbo->errorno != 0) {
+ if (self::$errorno != 0) {
// We have to preserve the error code, somewhere in the logging it get lost
- $error = self::$dbo->error;
- $errorno = self::$dbo->errorno;
+ $error = self::$error;
+ $errorno = self::$errorno;
- logger('DB Error '.self::$dbo->errorno.': '.self::$dbo->error."\n".
+ logger('DB Error '.self::$errorno.': '.self::$error."\n".
System::callstack(8)."\n".self::replace_parameters($sql, $params));
- self::$dbo->error = $error;
- self::$dbo->errorno = $errorno;
+ self::$error = $error;
+ self::$errorno = $errorno;
}
$a->save_timestamp($stamp, "database_write");
* @return boolean Are there rows for that condition?
*/
public static function exists($table, $condition) {
- self::initialize();
-
if (empty($table)) {
return false;
}
* @return array first row of query
*/
public static function fetch_first($sql) {
- self::initialize();
-
$params = self::getParam(func_get_args());
$stmt = self::p($sql, $params);
* @return int Number of rows
*/
public static function affected_rows() {
- self::initialize();
-
- return self::$dbo->affected_rows;
+ return self::$affected_rows;
}
/**
* @return int Number of columns
*/
public static function columnCount($stmt) {
- self::initialize();
-
if (!is_object($stmt)) {
return 0;
}
- switch (self::$dbo->driver) {
+ switch (self::$driver) {
case 'pdo':
return $stmt->columnCount();
case 'mysqli':
* @return int Number of rows
*/
public static function num_rows($stmt) {
- self::initialize();
-
if (!is_object($stmt)) {
return 0;
}
- switch (self::$dbo->driver) {
+ switch (self::$driver) {
case 'pdo':
return $stmt->rowCount();
case 'mysqli':
* @return array current row
*/
public static function fetch($stmt) {
- self::initialize();
-
if (!is_object($stmt)) {
return false;
}
- switch (self::$dbo->driver) {
+ switch (self::$driver) {
case 'pdo':
return $stmt->fetch(PDO::FETCH_ASSOC);
case 'mysqli':
}
return $columns;
case 'mysql':
- return mysql_fetch_array(self::$dbo->result, MYSQL_ASSOC);
+ return mysql_fetch_array($stmt, MYSQL_ASSOC);
}
}
* @return boolean was the insert successfull?
*/
public static function insert($table, $param, $on_duplicate_update = false) {
- self::initialize();
-
- $sql = "INSERT INTO `".self::$dbo->escape($table)."` (`".implode("`, `", array_keys($param))."`) VALUES (".
+ $sql = "INSERT INTO `".self::escape($table)."` (`".implode("`, `", array_keys($param))."`) VALUES (".
substr(str_repeat("?, ", count($param)), 0, -2).")";
if ($on_duplicate_update) {
* @return integer Last inserted id
*/
public static function lastInsertId() {
- self::initialize();
-
- switch (self::$dbo->driver) {
+ switch (self::$driver) {
case 'pdo':
- $id = self::$dbo->db->lastInsertId();
+ $id = self::$db->lastInsertId();
break;
case 'mysqli':
- $id = self::$dbo->db->insert_id;
+ $id = self::$db->insert_id;
break;
case 'mysql':
- $id = mysql_insert_id(self::$dbo);
+ $id = mysql_insert_id(self::$db);
break;
}
return $id;
* @return boolean was the lock successful?
*/
public static function lock($table) {
- self::initialize();
-
// See here: https://dev.mysql.com/doc/refman/5.7/en/lock-tables-and-transactions.html
self::e("SET autocommit=0");
- $success = self::e("LOCK TABLES `".self::$dbo->escape($table)."` WRITE");
+ $success = self::e("LOCK TABLES `".self::escape($table)."` WRITE");
if (!$success) {
self::e("SET autocommit=1");
} else {
* @return boolean was the unlock successful?
*/
public static function unlock() {
- self::initialize();
-
// See here: https://dev.mysql.com/doc/refman/5.7/en/lock-tables-and-transactions.html
self::e("COMMIT");
$success = self::e("UNLOCK TABLES");
* @return boolean Was the command executed successfully?
*/
public static function transaction() {
- self::initialize();
-
if (!self::e('COMMIT')) {
return false;
}
* @return boolean Was the command executed successfully?
*/
public static function commit() {
- self::initialize();
-
if (!self::e('COMMIT')) {
return false;
}
* @return boolean Was the command executed successfully?
*/
public static function rollback() {
- self::initialize();
-
if (!self::e('ROLLBACK')) {
return false;
}
* @return boolean|array was the delete successfull? When $in_process is set: deletion data
*/
public static function delete($table, $param, $in_process = false, &$callstack = array()) {
- self::initialize();
-
$commands = array();
// Create a key for the loop prevention
$callstack[$key] = true;
- $table = self::$dbo->escape($table);
+ $table = self::escape($table);
$commands[$key] = array('table' => $table, 'param' => $param);
* @return boolean was the update successfull?
*/
public static function update($table, $fields, $condition, $old_fields = array()) {
- self::initialize();
-
- $table = self::$dbo->escape($table);
+ $table = self::escape($table);
if (count($condition) > 0) {
$array_element = each($condition);
* $data = dba::select($table, $fields, $condition, $params);
*/
public static function select($table, $fields = array(), $condition = array(), $params = array()) {
- self::initialize();
-
if ($table == '') {
return false;
}
* @return array Data array
*/
public static function inArray($stmt, $do_close = true) {
- self::initialize();
-
if (is_bool($stmt)) {
return $stmt;
}
* @return string Error number (0 if no error)
*/
public static function errorNo() {
- self::initialize();
-
- return self::$dbo->errorno;
+ return self::$errorno;
}
/**
* @return string Error message ('' if no error)
*/
public static function errorMessage() {
- self::initialize();
-
- return self::$dbo->error;
+ return self::$error;
}
/**
* @return boolean was the close successfull?
*/
public static function close($stmt) {
- self::initialize();
-
if (!is_object($stmt)) {
return false;
}
- switch (self::$dbo->driver) {
+ switch (self::$driver) {
case 'pdo':
return $stmt->closeCursor();
case 'mysqli':
}
function dbesc($str) {
- global $db;
-
- if ($db && $db->connected) {
- return($db->escape($str));
+ if (dba::$connected) {
+ return(dba::escape($str));
} else {
return(str_replace("'","\\'",$str));
}
* @return array Query array
*/
function q($sql) {
- global $db;
-
$args = func_get_args();
unset($args[0]);
- if (!$db || !$db->connected) {
+ if (!dba::$connected) {
return false;
}
- $sql = $db->clean_query($sql);
- $sql = $db->any_value_fallback($sql);
+ $sql = dba::clean_query($sql);
+ $sql = dba::any_value_fallback($sql);
$stmt = @vsprintf($sql, $args);
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