<?php
-use \Friendica\Core\System;
-require_once("dbm.php");
-require_once('include/datetime.php');
+use Friendica\Core\L10n;
+use Friendica\Core\System;
+use Friendica\Database\DBM;
+use Friendica\Database\DBStructure;
+use Friendica\Util\DateTimeFormat;
/**
* @class MySQL database class
*/
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();
+ private static $relation = [];
+
+ public static function connect($serveraddr, $user, $pass, $db, $install = false) {
+ if (!is_null(self::$db)) {
+ return true;
+ }
- function __construct($serveraddr, $user, $pass, $db, $install = false) {
$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 = L10n::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()) {
- $this->connected = true;
-
- if (isset($a->config["system"]["db_charset"])) {
- $this->db->set_charset($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)) {
- $this->connected = true;
+ self::$connected = true;
if (isset($a->config["system"]["db_charset"])) {
- mysql_set_charset($a->config["system"]["db_charset"], $this->db);
+ self::$db->set_charset($a->config["system"]["db_charset"]);
}
}
}
// No suitable SQL driver was found.
- if (!$this->connected) {
- $this->db = null;
+ if (!self::$connected) {
+ self::$db = null;
if (!$install) {
- system_unavailable();
+ System::unavailable();
}
+ return false;
}
$a->save_timestamp($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;
- break;
- case 'mysql':
- $this->_server_info = mysql_get_server_info($this->db);
+ self::$_server_info = self::$db->server_info;
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"])) {
}
// Only do the explain on "select", "update" and "delete"
- if (!in_array(strtolower(substr($query, 0, 6)), array("select", "update", "delete"))) {
+ if (!in_array(strtolower(substr($query, 0, 6)), ["select", "update", "delete"])) {
return;
}
- $r = $this->q("EXPLAIN ".$query);
- if (!dbm::is_result($r)) {
+ $r = self::p("EXPLAIN ".$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($a->config["system"]["db_loglimit_index"])));
if ($log) {
$backtrace = debug_backtrace(DEBUG_BACKTRACE_IGNORE_ARGS);
- @file_put_contents($a->config["system"]["db_log_index"], datetime_convert()."\t".
+ @file_put_contents($a->config["system"]["db_log_index"], DateTimeFormat::utcNow()."\t".
$row['key']."\t".$row['rows']."\t".$row['Extra']."\t".
basename($backtrace[1]["file"])."\t".
$backtrace[1]["line"]."\t".$backtrace[2]["function"]."\t".
}
}
- /**
- * @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;
+ 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);
}
-
- 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 connected() {
+ $connected = false;
- function connected() {
- switch ($this->driver) {
+ switch (self::$driver) {
case 'pdo':
- // Not sure if this really is working like expected
- $connected = ($this->db->getAttribute(PDO::ATTR_CONNECTION_STATUS) != "");
+ $r = dba::p("SELECT 1");
+ if (DBM::is_result($r)) {
+ $row = dba::inArray($r);
+ $connected = ($row[0]['1'] == '1');
+ }
break;
case 'mysqli':
- $connected = $this->db->ping();
- break;
- case 'mysql':
- $connected = mysql_ping($this->db);
+ $connected = self::$db->ping();
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) {
- $search = array("\t", "\n", "\r", " ");
- $replace = array(' ', ' ', ' ', ' ');
+ public static function clean_query($sql) {
+ $search = ["\t", "\n", "\r", " "];
+ $replace = [' ', ' ', ' ', ' '];
do {
$oldsql = $sql;
$sql = str_replace($search, $replace, $sql);
if (is_int($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);
* For all regular queries please use dba::select or dba::exists
*
* @param string $sql SQL statement
- * @return object statement object
+ * @return bool|object statement object
*/
public static function p($sql) {
- self::initialize();
-
$a = get_app();
$stamp1 = microtime(true);
// Renumber the array keys to be sure that they fit
$i = 0;
- $args = array();
+ $args = [];
foreach ($params AS $param) {
// Avoid problems with some MySQL servers and boolean values. See issue #3645
if (is_bool($param)) {
$args[++$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':
// There are SQL statements that cannot be executed with a prepared statement
$parts = explode(' ', $orig_sql);
$command = strtolower($parts[0]);
- $can_be_prepared = in_array($command, array('select', 'update', 'insert', 'delete'));
+ $can_be_prepared = in_array($command, ['select', 'update', 'insert', 'delete']);
// 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;
}
$params = '';
- $values = array();
+ $values = [];
foreach ($args AS $param => $value) {
if (is_int($args[$param])) {
$params .= 'i';
if (count($values) > 0) {
array_unshift($values, $params);
- call_user_func_array(array($stmt, 'bind_param'), $values);
+ call_user_func_array([$stmt, 'bind_param'], $values);
}
if (!$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;
- }
- 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::$dbo->db);
- } else {
- self::$dbo->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);
- }
+ self::$affected_rows = $retval->affected_rows;
}
break;
}
// We are having an own error logging in the function "e"
- if ((self::$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');
$duration = round($duration, 3);
$backtrace = debug_backtrace(DEBUG_BACKTRACE_IGNORE_ARGS);
- @file_put_contents($a->config["system"]["db_log"], datetime_convert()."\t".$duration."\t".
+ @file_put_contents($a->config["system"]["db_log"], DateTimeFormat::utcNow()."\t".$duration."\t".
basename($backtrace[1]["file"])."\t".
$backtrace[1]["line"]."\t".$backtrace[2]["function"]."\t".
substr(self::replace_parameters($sql, $args), 0, 2000)."\n", FILE_APPEND);
* @return boolean Was the query successfull? False is returned only if an error occurred
*/
public static function e($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;
}
- $fields = array();
+ $fields = [];
$array_element = each($condition);
$array_key = $array_element['key'];
if (!is_int($array_key)) {
- $fields = array($array_key);
+ $fields = [$array_key];
}
- $stmt = self::select($table, $fields, $condition, array('limit' => 1, 'only_query' => true));
+ $stmt = self::select($table, $fields, $condition, ['limit' => 1]);
if (is_bool($stmt)) {
$retval = $stmt;
}
/**
- * @brief Fetches the first row
+ * Fetches the first row
*
- * Please use dba::select or dba::exists whenever this is possible.
+ * Please use dba::selectFirst or dba::exists whenever this is possible.
*
+ * @brief Fetches the first row
* @param string $sql SQL statement
* @return array first row of query
*/
public static function fetch_first($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 $stmt->field_count;
- case 'mysql':
- return mysql_affected_rows($stmt);
}
return 0;
}
/**
* @brief Returns the number of rows of a statement
*
- * @param object Statement object
+ * @param PDOStatement|mysqli_result|mysqli_stmt Statement object
* @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 $stmt->num_rows;
- case 'mysql':
- return mysql_num_rows($stmt);
}
return 0;
}
/**
* @brief Fetch a single row
*
- * @param object $stmt statement object
+ * @param mixed $stmt statement object
* @return array current row
*/
public static function fetch($stmt) {
- self::initialize();
+ $a = get_app();
+
+ $stamp1 = microtime(true);
+
+ $columns = [];
if (!is_object($stmt)) {
return false;
}
- switch (self::$dbo->driver) {
+ switch (self::$driver) {
case 'pdo':
- return $stmt->fetch(PDO::FETCH_ASSOC);
+ $columns = $stmt->fetch(PDO::FETCH_ASSOC);
+ break;
case 'mysqli':
if (get_class($stmt) == 'mysqli_result') {
- return $stmt->fetch_assoc();
+ $columns = $stmt->fetch_assoc();
+ break;
}
// This code works, but is slow
// Bind the result to a result array
- $cols = array();
+ $cols = [];
- $cols_num = array();
+ $cols_num = [];
for ($x = 0; $x < $stmt->field_count; $x++) {
$cols[] = &$cols_num[$x];
}
- call_user_func_array(array($stmt, 'bind_result'), $cols);
+ call_user_func_array([$stmt, 'bind_result'], $cols);
if (!$stmt->fetch()) {
return false;
$result = $stmt->result_metadata();
$fields = $result->fetch_fields();
- $columns = array();
foreach ($cols_num AS $param => $col) {
$columns[$fields[$param]->name] = $col;
}
- return $columns;
- case 'mysql':
- return mysql_fetch_array(self::$dbo->result, MYSQL_ASSOC);
}
+
+ $a->save_timestamp($stamp1, 'database');
+
+ return $columns;
}
/**
* @return boolean was the insert successfull?
*/
public static function insert($table, $param, $on_duplicate_update = false) {
- self::initialize();
- $sql = "INSERT INTO `".self::$dbo->escape($table)."` (`".implode("`, `", array_keys($param))."`) VALUES (".
+ if (empty($table) || empty($param)) {
+ logger('Table and fields have to be set');
+ return false;
+ }
+
+ $sql = "INSERT INTO `".self::escape($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;
- break;
- case 'mysql':
- $id = mysql_insert_id(self::$dbo);
+ $id = self::$db->insert_id;
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;
}
/**
* @brief Build the array with the table relations
*
- * The array is build from the database definitions in dbstructure.php
+ * The array is build from the database definitions in DBStructure.php
*
* This process must only be started once, since the value is cached.
*/
private static function build_relation_data() {
- $definition = db_definition();
+ $definition = DBStructure::definition();
foreach ($definition AS $table => $structure) {
foreach ($structure['fields'] AS $field => $field_struct) {
/**
* @brief Delete a row from a table
*
- * @param string $table Table name
- * @param array $param parameter array
- * @param boolean $in_process Internal use: Only do a commit after the last delete
- * @param array $callstack Internal use: prevent endless loops
+ * @param string $table Table name
+ * @param array $conditions Field condition(s)
+ * @param boolean $in_process Internal use: Only do a commit after the last delete
+ * @param array $callstack Internal use: prevent endless loops
*
- * @return boolean|array was the delete successfull? When $in_process is set: deletion data
+ * @return boolean|array was the delete successful? When $in_process is set: deletion data
*/
- public static function delete($table, $param, $in_process = false, &$callstack = array()) {
- self::initialize();
+ public static function delete($table, array $conditions, $in_process = false, array &$callstack = [])
+ {
+ if (empty($table) || empty($conditions)) {
+ logger('Table and conditions have to be set');
+ return false;
+ }
- $commands = array();
+ $commands = [];
// Create a key for the loop prevention
- $key = $table.':'.implode(':', array_keys($param)).':'.implode(':', $param);
+ $key = $table . ':' . implode(':', array_keys($conditions)) . ':' . implode(':', $conditions);
// We quit when this key already exists in the callstack.
if (isset($callstack[$key])) {
$callstack[$key] = true;
- $table = self::$dbo->escape($table);
+ $table = self::escape($table);
- $commands[$key] = array('table' => $table, 'param' => $param);
+ $commands[$key] = ['table' => $table, 'conditions' => $conditions];
// To speed up the whole process we cache the table relations
if (count(self::$relation) == 0) {
$rel_def = array_values(self::$relation[$table])[0];
// Create a key for preventing double queries
- $qkey = $field.'-'.$table.':'.implode(':', array_keys($param)).':'.implode(':', $param);
+ $qkey = $field . '-' . $table . ':' . implode(':', array_keys($conditions)) . ':' . implode(':', $conditions);
// When the search field is the relation field, we don't need to fetch the rows
// This is useful when the leading record is already deleted in the frontend but the rest is done in the backend
- if ((count($param) == 1) && ($field == array_keys($param)[0])) {
+ if ((count($conditions) == 1) && ($field == array_keys($conditions)[0])) {
foreach ($rel_def AS $rel_table => $rel_fields) {
foreach ($rel_fields AS $rel_field) {
- $retval = self::delete($rel_table, array($rel_field => array_values($param)[0]), true, $callstack);
+ $retval = self::delete($rel_table, [$rel_field => array_values($conditions)[0]], true, $callstack);
$commands = array_merge($commands, $retval);
}
}
- // We quit when this key already exists in the callstack.
+ // We quit when this key already exists in the callstack.
} elseif (!isset($callstack[$qkey])) {
$callstack[$qkey] = true;
// Fetch all rows that are to be deleted
- $data = self::select($table, array($field), $param);
+ $data = self::select($table, [$field], $conditions);
while ($row = self::fetch($data)) {
// Now we accumulate the delete commands
- $retval = self::delete($table, array($field => $row[$field]), true, $callstack);
+ $retval = self::delete($table, [$field => $row[$field]], true, $callstack);
$commands = array_merge($commands, $retval);
}
self::transaction();
}
- $compacted = array();
- $counter = array();
+ $compacted = [];
+ $counter = [];
foreach ($commands AS $command) {
- $condition = $command['param'];
- $array_element = each($condition);
+ $conditions = $command['conditions'];
+ $array_element = each($conditions);
$array_key = $array_element['key'];
if (is_int($array_key)) {
- $condition_string = " WHERE ".array_shift($condition);
+ $condition_string = " WHERE " . array_shift($conditions);
} else {
- $condition_string = " WHERE `".implode("` = ? AND `", array_keys($condition))."` = ?";
+ $condition_string = " WHERE `" . implode("` = ? AND `", array_keys($conditions)) . "` = ?";
}
- if ((count($command['param']) > 1) || is_int($array_key)) {
- $sql = "DELETE FROM `".$command['table']."`".$condition_string;
- logger(self::replace_parameters($sql, $condition), LOGGER_DATA);
+ if ((count($command['conditions']) > 1) || is_int($array_key)) {
+ $sql = "DELETE FROM `" . $command['table'] . "`" . $condition_string;
+ logger(self::replace_parameters($sql, $conditions), LOGGER_DATA);
- if (!self::e($sql, $condition)) {
+ if (!self::e($sql, $conditions)) {
if ($do_transaction) {
self::rollback();
}
}
} else {
$key_table = $command['table'];
- $key_param = array_keys($command['param'])[0];
- $value = array_values($command['param'])[0];
+ $key_condition = array_keys($command['conditions'])[0];
+ $value = array_values($command['conditions'])[0];
// Split the SQL queries in chunks of 100 values
// We do the $i stuff here to make the code better readable
- $i = $counter[$key_table][$key_param];
- if (count($compacted[$key_table][$key_param][$i]) > 100) {
+ $i = $counter[$key_table][$key_condition];
+ if (count($compacted[$key_table][$key_condition][$i]) > 100) {
++$i;
}
- $compacted[$key_table][$key_param][$i][$value] = $value;
- $counter[$key_table][$key_param] = $i;
+ $compacted[$key_table][$key_condition][$i][$value] = $value;
+ $counter[$key_table][$key_condition] = $i;
}
}
foreach ($compacted AS $table => $values) {
foreach ($values AS $field => $field_value_list) {
foreach ($field_value_list AS $field_values) {
- $sql = "DELETE FROM `".$table."` WHERE `".$field."` IN (".
- substr(str_repeat("?, ", count($field_values)), 0, -2).");";
+ $sql = "DELETE FROM `" . $table . "` WHERE `" . $field . "` IN (" .
+ substr(str_repeat("?, ", count($field_values)), 0, -2) . ");";
logger(self::replace_parameters($sql, $field_values), LOGGER_DATA);
*
* @return boolean was the update successfull?
*/
- public static function update($table, $fields, $condition, $old_fields = array()) {
- self::initialize();
+ public static function update($table, $fields, $condition, $old_fields = []) {
- $table = self::$dbo->escape($table);
+ if (empty($table) || empty($fields) || empty($condition)) {
+ logger('Table, fields and condition have to be set');
+ return false;
+ }
- if (count($condition) > 0) {
- $array_element = each($condition);
- $array_key = $array_element['key'];
- if (is_int($array_key)) {
- $condition_string = " WHERE ".array_shift($condition);
- } else {
- $condition_string = " WHERE `".implode("` = ? AND `", array_keys($condition))."` = ?";
- }
+ $table = self::escape($table);
+
+ $array_element = each($condition);
+ $array_key = $array_element['key'];
+ if (is_int($array_key)) {
+ $condition_string = " WHERE ".array_shift($condition);
} else {
- $condition_string = "";
+ $condition_string = " WHERE `".implode("` = ? AND `", array_keys($condition))."` = ?";
}
if (is_bool($old_fields)) {
$do_insert = $old_fields;
- $old_fields = self::select($table, array(), $condition, array('limit' => 1));
+ $old_fields = self::selectFirst($table, [], $condition);
if (is_bool($old_fields)) {
if ($do_insert) {
$values = array_merge($condition, $fields);
return self::insert($table, $values, $do_insert);
}
- $old_fields = array();
+ $old_fields = [];
}
}
return self::e($sql, $params);
}
+ /**
+ * Retrieve a single record from a table and returns it in an associative array
+ *
+ * @brief Retrieve a single record from a table
+ * @param string $table
+ * @param array $fields
+ * @param array $condition
+ * @param array $params
+ * @return bool|array
+ * @see dba::select
+ */
+ public static function selectFirst($table, array $fields = [], array $condition = [], $params = [])
+ {
+ $params['limit'] = 1;
+ $result = self::select($table, $fields, $condition, $params);
+
+ if (is_bool($result)) {
+ return $result;
+ } else {
+ $row = self::fetch($result);
+ self::close($result);
+ return $row;
+ }
+ }
+
/**
* @brief Select rows from a table
*
- * @param string $table Table name
- * @param array $fields array of selected fields
- * @param array $condition array of fields for condition
- * @param array $params array of several parameters
+ * @param string $table Table name
+ * @param array $fields Array of selected fields, empty for all
+ * @param array $condition Array of fields for condition
+ * @param array $params Array of several parameters
*
- * @return boolean|object If "limit" is equal "1" only a single row is returned, else a query object is returned
+ * @return boolean|object
*
* Example:
* $table = "item";
* or:
* $condition = array("`uid` = ? AND `network` IN (?, ?)", 1, 'dfrn', 'dspr');
*
- * $params = array("order" => array("id", "received" => true), "limit" => 1);
+ * $params = array("order" => array("id", "received" => true), "limit" => 10);
*
* $data = dba::select($table, $fields, $condition, $params);
*/
- public static function select($table, $fields = array(), $condition = array(), $params = array()) {
- self::initialize();
-
+ public static function select($table, array $fields = [], array $condition = [], array $params = [])
+ {
if ($table == '') {
return false;
}
if (count($fields) > 0) {
- $select_fields = "`".implode("`, `", array_values($fields))."`";
+ $select_fields = "`" . implode("`, `", array_values($fields)) . "`";
} else {
$select_fields = "*";
}
- if (count($condition) > 0) {
- $array_element = each($condition);
- $array_key = $array_element['key'];
- if (is_int($array_key)) {
- $condition_string = " WHERE ".array_shift($condition);
- } else {
- $condition_string = " WHERE `".implode("` = ? AND `", array_keys($condition))."` = ?";
- }
- } else {
- $condition_string = "";
- }
-
- $param_string = '';
- $single_row = false;
+ $condition_string = self::buildCondition($condition);
+ $order_string = '';
if (isset($params['order'])) {
- $param_string .= " ORDER BY ";
+ $order_string = " ORDER BY ";
foreach ($params['order'] AS $fields => $order) {
if (!is_int($fields)) {
- $param_string .= "`".$fields."` ".($order ? "DESC" : "ASC").", ";
+ $order_string .= "`" . $fields . "` " . ($order ? "DESC" : "ASC") . ", ";
} else {
- $param_string .= "`".$order."`, ";
+ $order_string .= "`" . $order . "`, ";
}
}
- $param_string = substr($param_string, 0, -2);
+ $order_string = substr($order_string, 0, -2);
}
+ $limit_string = '';
if (isset($params['limit']) && is_int($params['limit'])) {
- $param_string .= " LIMIT ".$params['limit'];
- $single_row = ($params['limit'] == 1);
+ $limit_string = " LIMIT " . $params['limit'];
}
- if (isset($params['only_query']) && $params['only_query']) {
- $single_row = !$params['only_query'];
+ if (isset($params['limit']) && is_array($params['limit'])) {
+ $limit_string = " LIMIT " . intval($params['limit'][0]) . ", " . intval($params['limit'][1]);
}
- $sql = "SELECT ".$select_fields." FROM `".$table."`".$condition_string.$param_string;
+ $sql = "SELECT " . $select_fields . " FROM `" . $table . "`" . $condition_string . $order_string . $limit_string;
$result = self::p($sql, $condition);
- if (is_bool($result) || !$single_row) {
- return $result;
- } else {
- $row = self::fetch($result);
- self::close($result);
- return $row;
+ return $result;
+ }
+
+ /**
+ * @brief Counts the rows from a table satisfying the provided condition
+ *
+ * @param string $table Table name
+ * @param array $condition array of fields for condition
+ *
+ * @return int
+ *
+ * Example:
+ * $table = "item";
+ *
+ * $condition = ["uid" => 1, "network" => 'dspr'];
+ * or:
+ * $condition = ["`uid` = ? AND `network` IN (?, ?)", 1, 'dfrn', 'dspr'];
+ *
+ * $count = dba::count($table, $condition);
+ */
+ public static function count($table, array $condition = [])
+ {
+ if ($table == '') {
+ return false;
}
+
+ $condition_string = self::buildCondition($condition);
+
+ $sql = "SELECT COUNT(*) AS `count` FROM `".$table."`".$condition_string;
+
+ $row = self::fetch_first($sql, $condition);
+
+ return $row['count'];
}
+ /**
+ * @brief Returns the SQL condition string built from the provided condition array
+ *
+ * This function operates with two modes.
+ * - Supplied with a filed/value associative array, it builds simple strict
+ * equality conditions linked by AND.
+ * - Supplied with a flat list, the first element is the condition string and
+ * the following arguments are the values to be interpolated
+ *
+ * $condition = ["uid" => 1, "network" => 'dspr'];
+ * or:
+ * $condition = ["`uid` = ? AND `network` IN (?, ?)", 1, 'dfrn', 'dspr'];
+ *
+ * In either case, the provided array is left with the parameters only
+ *
+ * @param array $condition
+ * @return string
+ */
+ private static function buildCondition(array &$condition = [])
+ {
+ $condition_string = '';
+ if (count($condition) > 0) {
+ $array_element = each($condition);
+ $array_key = $array_element['key'];
+ if (is_int($array_key)) {
+ $condition_string = " WHERE ".array_shift($condition);
+ } else {
+ $condition_string = " WHERE `".implode("` = ? AND `", array_keys($condition))."` = ?";
+ }
+ }
+
+ return $condition_string;
+ }
/**
* @brief Fills an array with data from a query
* @return array Data array
*/
public static function inArray($stmt, $do_close = true) {
- self::initialize();
-
if (is_bool($stmt)) {
return $stmt;
}
- $data = array();
+ $data = [];
while ($row = self::fetch($stmt)) {
$data[] = $row;
}
* @return string Error number (0 if no error)
*/
public static function errorNo() {
- self::initialize();
-
- return self::$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;
}
/**
* @brief Closes the current statement
*
* @param object $stmt statement object
- * @return boolean was the close successfull?
+ * @return boolean was the close successful?
*/
public static function close($stmt) {
- self::initialize();
+ $a = get_app();
+
+ $stamp1 = microtime(true);
if (!is_object($stmt)) {
return false;
}
- switch (self::$dbo->driver) {
+ switch (self::$driver) {
case 'pdo':
- return $stmt->closeCursor();
+ $ret = $stmt->closeCursor();
+ break;
case 'mysqli':
- return $stmt->free_result();
- return $stmt->close();
- case 'mysql':
- return mysql_free_result($stmt);
+ $stmt->free_result();
+ $ret = $stmt->close();
+ break;
}
+
+ $a->save_timestamp($stamp1, 'database');
+
+ return $ret;
}
}
function dbesc($str) {
- global $db;
-
- if ($db && $db->connected) {
- return($db->escape($str));
+ if (dba::$connected) {
+ return(dba::escape($str));
} else {
return(str_replace("'","\\'",$str));
}
* dba::delete, dba::update, dba::p, dba::e
*
* @param $args Query parameters (1 to N parameters of different types)
- * @return array Query array
+ * @return array|bool Query array
*/
function q($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);
projects / friendica.git / blobdiff