<?php
+use \Friendica\Core\System;
+
require_once("dbm.php");
require_once('include/datetime.php');
}
}
- public function q($sql, $onlyquery = false) {
- $a = get_app();
-
- if (!$this->db || !$this->connected) {
- return false;
- }
-
- $this->error = '';
-
- $connstr = ($this->connected() ? "Connected" : "Disonnected");
-
- $stamp1 = microtime(true);
-
- $orig_sql = $sql;
-
- if (x($a->config,'system') && x($a->config['system'], 'db_callstack')) {
- $sql = "/*".$a->callstack()." */ ".$sql;
- }
-
- $columns = 0;
-
- switch ($this->driver) {
- case 'pdo':
- $result = @$this->db->query($sql);
- // Is used to separate between queries that returning data - or not
- if (!is_bool($result)) {
- $columns = $result->columnCount();
- }
- break;
- case 'mysqli':
- $result = @$this->db->query($sql);
- break;
- case 'mysql':
- $result = @mysql_query($sql,$this->db);
- break;
- }
- $stamp2 = microtime(true);
- $duration = (float)($stamp2 - $stamp1);
-
- $a->save_timestamp($stamp1, "database");
-
- if (strtolower(substr($orig_sql, 0, 6)) != "select") {
- $a->save_timestamp($stamp1, "database_write");
- }
- if (x($a->config,'system') && x($a->config['system'],'db_log')) {
- if (($duration > $a->config["system"]["db_loglimit"])) {
- $duration = round($duration, 3);
- $backtrace = debug_backtrace(DEBUG_BACKTRACE_IGNORE_ARGS);
- @file_put_contents($a->config["system"]["db_log"], datetime_convert()."\t".$duration."\t".
- basename($backtrace[1]["file"])."\t".
- $backtrace[1]["line"]."\t".$backtrace[2]["function"]."\t".
- substr($sql, 0, 2000)."\n", FILE_APPEND);
- }
- }
-
- switch ($this->driver) {
- case 'pdo':
- $errorInfo = $this->db->errorInfo();
- if ($errorInfo) {
- $this->error = $errorInfo[2];
- $this->errorno = $errorInfo[1];
- }
- break;
- case 'mysqli':
- if ($this->db->errno) {
- $this->error = $this->db->error;
- $this->errorno = $this->db->errno;
- }
- break;
- case 'mysql':
- if (mysql_errno($this->db)) {
- $this->error = mysql_error($this->db);
- $this->errorno = mysql_errno($this->db);
- }
- break;
- }
- if (strlen($this->error)) {
- logger('DB Error ('.$connstr.') '.$this->errorno.': '.$this->error);
- }
-
- if ($this->debug) {
-
- $mesg = '';
-
- if ($result === false) {
- $mesg = 'false';
- } elseif ($result === true) {
- $mesg = 'true';
- } else {
- switch ($this->driver) {
- case 'pdo':
- $mesg = $result->rowCount().' results'.EOL;
- break;
- case 'mysqli':
- $mesg = $result->num_rows.' results'.EOL;
- break;
- case 'mysql':
- $mesg = mysql_num_rows($result).' results'.EOL;
- break;
- }
- }
-
- $str = 'SQL = ' . printable($sql) . EOL . 'SQL returned ' . $mesg
- . (($this->error) ? ' error: ' . $this->error : '')
- . EOL;
-
- logger('dba: ' . $str );
- }
-
- /**
- * If dbfail.out exists, we will write any failed calls directly to it,
- * regardless of any logging that may or may nor be in effect.
- * These usually indicate SQL syntax errors that need to be resolved.
- */
+ /**
+ * @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 ($result === false) {
- logger('dba: ' . printable($sql) . ' returned false.' . "\n" . $this->error);
- if (file_exists('dbfail.out')) {
- file_put_contents('dbfail.out', datetime_convert() . "\n" . printable($sql) . ' returned false' . "\n" . $this->error . "\n", FILE_APPEND);
- }
+ if (is_bool($ret)) {
+ return $ret;
}
- if (is_bool($result)) {
- return $result;
- }
- if ($onlyquery) {
- $this->result = $result;
- return true;
- }
+ $columns = self::columnCount($ret);
- $r = array();
- switch ($this->driver) {
- case 'pdo':
- while ($x = $result->fetch(PDO::FETCH_ASSOC)) {
- $r[] = $x;
- }
- $result->closeCursor();
- break;
- case 'mysqli':
- while ($x = $result->fetch_array(MYSQLI_ASSOC)) {
- $r[] = $x;
- }
- $result->free_result();
- break;
- case 'mysql':
- while ($x = mysql_fetch_array($result, MYSQL_ASSOC)) {
- $r[] = $x;
- }
- mysql_free_result($result);
- break;
- }
+ $data = self::inArray($ret);
- // PDO doesn't return "true" on successful operations - like mysqli does
- // Emulate this behaviour by checking if the query returned data and had columns
- // This should be reliable enough
- if (($this->driver == 'pdo') && (count($r) == 0) && ($columns == 0)) {
+ if ((count($data) == 0) && ($columns == 0)) {
return true;
}
- //$a->save_timestamp($stamp1, "database");
-
- if ($this->debug) {
- logger('dba: ' . printable(print_r($r, true)));
- }
- return($r);
+ return $data;
}
public function dbg($dbg) {
* @param array $args The parameters that are to replace the ? placeholders
* @return string The replaced SQL query
*/
- static private function replace_parameters($sql, $args) {
+ private static function replace_parameters($sql, $args) {
$offset = 0;
foreach ($args AS $param => $value) {
if (is_int($args[$param]) || is_float($args[$param])) {
/**
* @brief Executes a prepared statement that returns data
* @usage Example: $r = p("SELECT * FROM `item` WHERE `guid` = ?", $guid);
+ *
+ * Please only use it with complicated queries.
+ * For all regular queries please use dba::select or dba::exists
+ *
* @param string $sql SQL statement
* @return object statement object
*/
- static public function p($sql) {
+ public static function p($sql) {
$a = get_app();
$stamp1 = microtime(true);
$i = 0;
$args = array();
foreach ($params AS $param) {
+ // Avoid problems with some MySQL servers and boolean values. See issue #3645
+ if (is_bool($param)) {
+ $param = (int)$param;
+ }
$args[++$i] = $param;
}
return false;
}
- if (substr_count($sql, '?') != count($args)) {
+ if ((substr_count($sql, '?') != count($args)) && (count($args) > 0)) {
// Question: Should we continue or stop the query here?
logger('Parameter mismatch. Query "'.$sql.'" - Parameters '.print_r($args, true), LOGGER_DEBUG);
}
$orig_sql = $sql;
if (x($a->config,'system') && x($a->config['system'], 'db_callstack')) {
- $sql = "/*".$a->callstack()." */ ".$sql;
+ $sql = "/*".System::callstack()." */ ".$sql;
}
self::$dbo->error = '';
switch (self::$dbo->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];
+ $retval = false;
+ break;
+ }
+ self::$dbo->affected_rows = $retval->rowCount();
+ break;
+ }
+
if (!$stmt = self::$dbo->db->prepare($sql)) {
$errorInfo = self::$dbo->db->errorInfo();
self::$dbo->error = $errorInfo[2];
$command = strtolower($parts[0]);
$can_be_prepared = in_array($command, array('select', 'update', 'insert', 'delete'));
- // The fallback routine currently only works with statements that doesn't return values
- if (!$can_be_prepared && $called_from_e) {
+ // The fallback routine is called as well when there are no arguments
+ if (!$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;
$errorno = self::$dbo->errorno;
logger('DB Error '.self::$dbo->errorno.': '.self::$dbo->error."\n".
- $a->callstack(8)."\n".self::replace_parameters($sql, $params));
+ System::callstack(8)."\n".self::replace_parameters($sql, $params));
self::$dbo->error = $error;
self::$dbo->errorno = $errorno;
/**
* @brief Executes a prepared statement like UPDATE or INSERT that doesn't return data
*
+ * Please use dba::delete, dba::insert, dba::update, ... instead
+ *
* @param string $sql SQL statement
* @return boolean Was the query successfull? False is returned only if an error occurred
*/
- static public function e($sql) {
+ public static function e($sql) {
$a = get_app();
$stamp = microtime(true);
$errorno = self::$dbo->errorno;
logger('DB Error '.self::$dbo->errorno.': '.self::$dbo->error."\n".
- $a->callstack(8)."\n".self::replace_parameters($sql, $params));
+ System::callstack(8)."\n".self::replace_parameters($sql, $params));
self::$dbo->error = $error;
self::$dbo->errorno = $errorno;
*
* @return boolean Are there rows for that condition?
*/
- static public function exists($table, $condition) {
+ public static function exists($table, $condition) {
if (empty($table)) {
return false;
}
/**
* @brief Fetches the first row
*
+ * Please use dba::select or dba::exists whenever this is possible.
+ *
* @param string $sql SQL statement
* @return array first row of query
*/
- static public function fetch_first($sql) {
+ public static function fetch_first($sql) {
$params = self::getParam(func_get_args());
$stmt = self::p($sql, $params);
*
* @return int Number of rows
*/
- static public function affected_rows() {
+ public static function affected_rows() {
return self::$dbo->affected_rows;
}
+ /**
+ * @brief Returns the number of columns of a statement
+ *
+ * @param object Statement object
+ * @return int Number of columns
+ */
+ public static function columnCount($stmt) {
+ if (!is_object($stmt)) {
+ return 0;
+ }
+ switch (self::$dbo->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
* @return int Number of rows
*/
- static public function num_rows($stmt) {
+ public static function num_rows($stmt) {
if (!is_object($stmt)) {
return 0;
}
* @param object $stmt statement object
* @return array current row
*/
- static public function fetch($stmt) {
+ public static function fetch($stmt) {
if (!is_object($stmt)) {
return false;
}
case 'pdo':
return $stmt->fetch(PDO::FETCH_ASSOC);
case 'mysqli':
+ if (get_class($stmt) == 'mysqli_result') {
+ return $stmt->fetch_assoc();
+ }
+
// This code works, but is slow
// Bind the result to a result array
*
* @return boolean was the insert successfull?
*/
- static public function insert($table, $param, $on_duplicate_update = false) {
+ public static function insert($table, $param, $on_duplicate_update = false) {
$sql = "INSERT INTO `".self::$dbo->escape($table)."` (`".implode("`, `", array_keys($param))."`) VALUES (".
substr(str_repeat("?, ", count($param)), 0, -2).")";
*
* @return integer Last inserted id
*/
- function lastInsertId() {
+ public static function lastInsertId() {
switch (self::$dbo->driver) {
case 'pdo':
$id = self::$dbo->db->lastInsertId();
*
* @return boolean was the lock successful?
*/
- static public function lock($table) {
+ public static function lock($table) {
// 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");
*
* @return boolean was the unlock successful?
*/
- static public function unlock() {
+ public static function unlock() {
// 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?
*/
- static public function transaction() {
+ public static function transaction() {
if (!self::e('COMMIT')) {
return false;
}
*
* @return boolean Was the command executed successfully?
*/
- static public function commit() {
+ public static function commit() {
if (!self::e('COMMIT')) {
return false;
}
*
* @return boolean Was the command executed successfully?
*/
- static public function rollback() {
+ public static function rollback() {
if (!self::e('ROLLBACK')) {
return false;
}
*
* This process must only be started once, since the value is cached.
*/
- static private function build_relation_data() {
+ private static function build_relation_data() {
$definition = db_definition();
foreach ($definition AS $table => $structure) {
- foreach ($structure['fields'] AS $field => $field_struct) {
- if (isset($field_struct['relation'])) {
- foreach ($field_struct['relation'] AS $rel_table => $rel_field) {
- self::$relation[$rel_table][$rel_field][$table][] = $field;
- }
- }
- }
+ foreach ($structure['fields'] AS $field => $field_struct) {
+ if (isset($field_struct['relation'])) {
+ foreach ($field_struct['relation'] AS $rel_table => $rel_field) {
+ self::$relation[$rel_table][$rel_field][$table][] = $field;
+ }
+ }
+ }
}
}
*
* @return boolean|array was the delete successfull? When $in_process is set: deletion data
*/
- static public function delete($table, $param, $in_process = false, &$callstack = array()) {
+ public static function delete($table, $param, $in_process = false, &$callstack = array()) {
$commands = array();
*
* @return boolean was the update successfull?
*/
- static public function update($table, $fields, $condition, $old_fields = array()) {
+ public static function update($table, $fields, $condition, $old_fields = array()) {
$table = self::$dbo->escape($table);
* Example:
* $table = "item";
* $fields = array("id", "uri", "uid", "network");
+ *
* $condition = array("uid" => 1, "network" => 'dspr');
+ * or:
+ * $condition = array("`uid` = ? AND `network` IN (?, ?)", 1, 'dfrn', 'dspr');
+ *
* $params = array("order" => array("id", "received" => true), "limit" => 1);
*
* $data = dba::select($table, $fields, $condition, $params);
*/
- static public function select($table, $fields = array(), $condition = array(), $params = array()) {
+ public static function select($table, $fields = array(), $condition = array(), $params = array()) {
if ($table == '') {
return false;
}
* @param object $stmt statement object
* @return array Data array
*/
- static public function inArray($stmt, $do_close = true) {
+ public static function inArray($stmt, $do_close = true) {
+ if (is_bool($stmt)) {
+ return $stmt;
+ }
+
$data = array();
while ($row = self::fetch($stmt)) {
$data[] = $row;
* @param object $stmt statement object
* @return boolean was the close successfull?
*/
- static public function close($stmt) {
+ public static function close($stmt) {
if (!is_object($stmt)) {
return false;
}
}
}
-// Function: q($sql,$args);
-// Description: execute SQL query with printf style args.
-// Example: $r = q("SELECT * FROM `%s` WHERE `uid` = %d",
-// 'user', 1);
+/**
+ * @brief execute SQL query with printf style args - deprecated
+ *
+ * Please use the dba:: functions instead:
+ * dba::select, dba::exists, dba::insert
+ * dba::delete, dba::update, dba::p, dba::e
+ *
+ * @param $args Query parameters (1 to N parameters of different types)
+ * @return array Query array
+ */
function q($sql) {
global $db;
+
$args = func_get_args();
unset($args[0]);
- if ($db && $db->connected) {
- $sql = $db->clean_query($sql);
- $sql = $db->any_value_fallback($sql);
- $stmt = @vsprintf($sql,$args); // Disabled warnings
- //logger("dba: q: $stmt", LOGGER_ALL);
- if ($stmt === false)
- logger('dba: vsprintf error: ' . print_r(debug_backtrace(),true), LOGGER_DEBUG);
+ if (!$db || !$db->connected) {
+ return false;
+ }
- $db->log_index($stmt);
+ $sql = $db->clean_query($sql);
+ $sql = $db->any_value_fallback($sql);
- return $db->q($stmt);
+ $stmt = @vsprintf($sql, $args);
+
+ $ret = dba::p($stmt);
+
+ if (is_bool($ret)) {
+ return $ret;
}
- /**
- *
- * This will happen occasionally trying to store the
- * session data after abnormal program termination
- *
- */
- logger('dba: no database: ' . print_r($args,true));
- return false;
+ $columns = dba::columnCount($ret);
+
+ $data = dba::inArray($ret);
+
+ if ((count($data) == 0) && ($columns == 0)) {
+ return true;
+ }
+
+ return $data;
}
/**
- * @brief Performs a query with "dirty reads"
+ * @brief Performs a query with "dirty reads" - deprecated
*
- * By doing dirty reads (reading uncommitted data) no locks are performed
- * This function can be used to fetch data that doesn't need to be reliable.
+ * Please use the dba:: functions instead:
+ * dba::select, dba::exists, dba::insert
+ * dba::delete, dba::update, dba::p, dba::e
*
* @param $args Query parameters (1 to N parameters of different types)
* @return array Query array
$db->log_index($stmt);
- $db->q("SET SESSION TRANSACTION ISOLATION LEVEL READ UNCOMMITTED;");
$retval = $db->q($stmt);
- $db->q("SET SESSION TRANSACTION ISOLATION LEVEL REPEATABLE READ;");
return $retval;
}
return false;
}
-/**
- *
- * Raw db query, no arguments
- *
- */
-function dbq($sql) {
- global $db;
-
- if ($db && $db->connected) {
- $ret = $db->q($sql);
- } else {
- $ret = false;
- }
- return $ret;
-}
-
-// Caller is responsible for ensuring that any integer arguments to
-// dbesc_array are actually integers and not malformed strings containing
-// SQL injection vectors. All integer array elements should be specifically
-// cast to int to avoid trouble.
-function dbesc_array_cb(&$item, $key) {
- if (is_string($item))
- $item = dbesc($item);
-}
-
-function dbesc_array(&$arr) {
- if (is_array($arr) && count($arr)) {
- array_walk($arr,'dbesc_array_cb');
- }
-}
-
function dba_timer() {
return microtime(true);
}