<?php
/**
- * @copyright Copyright (C) 2020, Friendica
+ * @copyright Copyright (C) 2010-2022, the Friendica project
*
* @license GNU AGPL version 3 or any later version
*
namespace Friendica\Database;
-use Friendica\Core\Config\Cache;
+use Friendica\Core\Config\ValueObject\Cache;
use Friendica\Core\System;
-use Friendica\Network\HTTPException\InternalServerErrorException;
+use Friendica\Database\Definition\DbaDefinition;
+use Friendica\Database\Definition\ViewDefinition;
+use Friendica\Network\HTTPException\ServiceUnavailableException;
use Friendica\Util\DateTimeFormat;
use Friendica\Util\Profiler;
+use InvalidArgumentException;
use mysqli;
use mysqli_result;
use mysqli_stmt;
use PDOException;
use PDOStatement;
use Psr\Log\LoggerInterface;
+use Psr\Log\NullLogger;
/**
* This class is for the low level database stuff that does driver specific things.
*/
class Database
{
- const PDO = 'pdo';
+ const PDO = 'pdo';
const MYSQLI = 'mysqli';
const INSERT_DEFAULT = 0;
- const INSERT_UPDATE = 1;
- const INSERT_IGNORE = 2;
+ const INSERT_UPDATE = 1;
+ const INSERT_IGNORE = 2;
protected $connected = false;
/**
- * @var Cache
+ * @var \Friendica\Core\Config\ValueObject\Cache
*/
protected $configCache;
/**
* @var LoggerInterface
*/
protected $logger;
- protected $server_info = '';
+ protected $server_info = '';
/** @var PDO|mysqli */
protected $connection;
- protected $driver;
+ protected $driver = '';
protected $pdo_emulate_prepares = false;
- private $error = false;
- private $errorno = 0;
- private $affected_rows = 0;
+ private $error = '';
+ private $errorno = 0;
+ private $affected_rows = 0;
protected $in_transaction = false;
- protected $in_retrial = false;
- protected $testmode = false;
- private $relation = [];
-
- public function __construct(Cache $configCache, Profiler $profiler, LoggerInterface $logger)
+ protected $in_retrial = false;
+ protected $testmode = false;
+ private $relation = [];
+ /** @var DbaDefinition */
+ protected $dbaDefinition;
+ /** @var ViewDefinition */
+ protected $viewDefinition;
+
+ public function __construct(Cache $configCache, Profiler $profiler, DbaDefinition $dbaDefinition, ViewDefinition $viewDefinition)
{
// We are storing these values for being able to perform a reconnect
- $this->configCache = $configCache;
- $this->profiler = $profiler;
- $this->logger = $logger;
+ $this->configCache = $configCache;
+ $this->profiler = $profiler;
+ $this->dbaDefinition = $dbaDefinition;
+ $this->viewDefinition = $viewDefinition;
- $this->connect();
+ // Temporary NullLogger until we can fetch the logger class from the config
+ $this->logger = new NullLogger();
- if ($this->isConnected()) {
- // Loads DB_UPDATE_VERSION constant
- DBStructure::definition($configCache->get('system', 'basepath'), false);
- }
+ $this->connect();
}
- public function connect()
+ /**
+ * Tries to connect to database
+ *
+ * @return bool Success
+ */
+ public function connect(): bool
{
if (!is_null($this->connection) && $this->connected()) {
return $this->connected;
$this->connected = false;
$port = 0;
- $serveraddr = trim($this->configCache->get('database', 'hostname'));
+ $serveraddr = trim($this->configCache->get('database', 'hostname') ?? '');
$serverdata = explode(':', $serveraddr);
- $server = $serverdata[0];
+ $host = trim($serverdata[0]);
if (count($serverdata) > 1) {
$port = trim($serverdata[1]);
}
- if (!empty(trim($this->configCache->get('database', 'port')))) {
- $port = trim($this->configCache->get('database', 'port'));
+ if (trim($this->configCache->get('database', 'port') ?? 0)) {
+ $port = trim($this->configCache->get('database', 'port') ?? 0);
}
- $server = trim($server);
- $user = trim($this->configCache->get('database', 'username'));
- $pass = trim($this->configCache->get('database', 'password'));
- $db = trim($this->configCache->get('database', 'database'));
- $charset = trim($this->configCache->get('database', 'charset'));
+ $user = trim($this->configCache->get('database', 'username'));
+ $pass = trim($this->configCache->get('database', 'password'));
+ $database = trim($this->configCache->get('database', 'database'));
+ $charset = trim($this->configCache->get('database', 'charset'));
+ $socket = trim($this->configCache->get('database', 'socket'));
- if (!(strlen($server) && strlen($user))) {
+ if (!$host && !$socket || !$user) {
return false;
}
if (!$this->configCache->get('database', 'disable_pdo') && class_exists('\PDO') && in_array('mysql', PDO::getAvailableDrivers())) {
$this->driver = self::PDO;
- $connect = "mysql:host=" . $server . ";dbname=" . $db;
-
- if ($port > 0) {
- $connect .= ";port=" . $port;
+ if ($socket) {
+ $connect = 'mysql:unix_socket=' . $socket;
+ } else {
+ $connect = 'mysql:host=' . $host;
+ if ($port > 0) {
+ $connect .= ';port=' . $port;
+ }
}
if ($charset) {
- $connect .= ";charset=" . $charset;
+ $connect .= ';charset=' . $charset;
}
+ $connect .= ';dbname=' . $database;
+
try {
$this->connection = @new PDO($connect, $user, $pass, [PDO::ATTR_PERSISTENT => $persistent]);
$this->connection->setAttribute(PDO::ATTR_EMULATE_PREPARES, $this->pdo_emulate_prepares);
+ $this->connection->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_SILENT);
$this->connected = true;
} catch (PDOException $e) {
$this->connected = false;
if (!$this->connected && class_exists('\mysqli')) {
$this->driver = self::MYSQLI;
- if ($port > 0) {
- $this->connection = @new mysqli($server, $user, $pass, $db, $port);
+ if ($socket) {
+ $this->connection = @new mysqli(null, $user, $pass, $database, null, $socket);
+ } elseif ($port > 0) {
+ $this->connection = @new mysqli($host, $user, $pass, $database, $port);
} else {
- $this->connection = @new mysqli($server, $user, $pass, $db);
+ $this->connection = @new mysqli($host, $user, $pass, $database);
}
if (!mysqli_connect_errno()) {
// No suitable SQL driver was found.
if (!$this->connected) {
- $this->driver = null;
+ $this->driver = '';
$this->connection = null;
}
{
$this->testmode = $test;
}
+
/**
* Sets the logger for DBA
*
{
$this->profiler = $profiler;
}
+
/**
* Disconnects the current database connection
*/
}
}
- $this->driver = null;
+ $this->driver = '';
$this->connected = false;
}
*
* @return string with either "pdo" or "mysqli"
*/
- public function getDriver()
+ public function getDriver(): string
{
return $this->driver;
}
* This function discriminate between the deprecated mysql API and the current
* object-oriented mysqli API. Example of returned string: 5.5.46-0+deb8u1
*
- * @return string
+ * @return string Database server information
*/
- public function serverInfo()
+ public function serverInfo(): string
{
if ($this->server_info == '') {
switch ($this->driver) {
/**
* Returns the selected database name
*
- * @return string
+ * @return string Database name
* @throws \Exception
*/
- public function databaseName()
+ public function databaseName(): string
{
$ret = $this->p("SELECT DATABASE() AS `db`");
$data = $this->toArray($ret);
* Analyze a database query and log this if some conditions are met.
*
* @param string $query The database query that will be analyzed
- *
+ * @return void
* @throws \Exception
*/
- private function logIndex($query)
+ private function logIndex(string $query)
{
if (!$this->configCache->get('system', 'db_log_index')) {
}
$watchlist = explode(',', $this->configCache->get('system', 'db_log_index_watch'));
- $denylist = explode(',', $this->configCache->get('system', 'db_log_index_denylist'));
+ $denylist = explode(',', $this->configCache->get('system', 'db_log_index_denylist'));
while ($row = $this->fetch($r)) {
if ((intval($this->configCache->get('system', 'db_loglimit_index')) > 0)) {
$log = (in_array($row['key'], $watchlist) &&
- ($row['rows'] >= intval($this->configCache->get('system', 'db_loglimit_index'))));
+ ($row['rows'] >= intval($this->configCache->get('system', 'db_loglimit_index'))));
} else {
$log = false;
}
if ($log) {
$backtrace = debug_backtrace(DEBUG_BACKTRACE_IGNORE_ARGS);
- @file_put_contents($this->configCache->get('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" . $backtrace[2]["function"] . "\t" .
- substr($query, 0, 4000) . "\n", FILE_APPEND);
+ @file_put_contents(
+ $this->configCache->get('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" . $backtrace[2]["function"] . "\t" .
+ substr($query, 0, 4000) . "\n",
+ FILE_APPEND
+ );
}
}
}
* Removes every not allowlisted character from the identifier string
*
* @param string $identifier
- *
* @return string sanitized identifier
* @throws \Exception
*/
- private function sanitizeIdentifier($identifier)
+ private function sanitizeIdentifier(string $identifier): string
{
return preg_replace('/[^A-Za-z0-9_\-]+/', '', $identifier);
}
}
}
- public function isConnected()
+ /**
+ * Returns connected flag
+ *
+ * @return bool Whether connection to database was success
+ */
+ public function isConnected(): bool
{
return $this->connected;
}
+ /**
+ * Checks connection status
+ *
+ * @return bool Whether connection to database was success
+ */
public function connected()
{
$connected = false;
*
* @return string The input SQL string modified if necessary.
*/
- public function anyValueFallback($sql)
+ public function anyValueFallback(string $sql): string
{
$server_info = $this->serverInfo();
if (version_compare($server_info, '5.7.5', '<') ||
- (stripos($server_info, 'MariaDB') !== false)) {
+ (stripos($server_info, 'MariaDB') !== false)) {
$sql = str_ireplace('ANY_VALUE(', 'MIN(', $sql);
}
return $sql;
*
* @return string The replaced SQL query
*/
- private function replaceParameters($sql, $args)
+ private function replaceParameters(string $sql, array $args): string
{
$offset = 0;
- foreach ($args AS $param => $value) {
+ foreach ($args as $param => $value) {
if (is_int($args[$param]) || is_float($args[$param]) || is_bool($args[$param])) {
$replace = intval($args[$param]);
} elseif (is_null($args[$param])) {
* @return bool|object statement object or result object
* @throws \Exception
*/
- public function p($sql)
+ public function p(string $sql)
{
+ $this->profiler->startRecording('database');
$stamp1 = microtime(true);
$params = DBA::getParam(func_get_args());
// Renumber the array keys to be sure that they fit
$i = 0;
$args = [];
- foreach ($params AS $param) {
+ foreach ($params as $param) {
// Avoid problems with some MySQL servers and boolean values. See issue #3645
if (is_bool($param)) {
$param = (int)$param;
$called_from_e = ($called_from['function'] == 'e');
if (!isset($this->connection)) {
- throw new InternalServerErrorException('The Connection is empty, although connected is set true.');
+ throw new ServiceUnavailableException('The Connection is empty, although connected is set true.');
}
switch ($this->driver) {
if (count($args) == 0) {
if (!$retval = $this->connection->query($this->replaceParameters($sql, $args))) {
$errorInfo = $this->connection->errorInfo();
- $this->error = $errorInfo[2];
- $this->errorno = $errorInfo[1];
+ $this->error = (string)$errorInfo[2];
+ $this->errorno = (int)$errorInfo[1];
$retval = false;
$is_error = true;
break;
/** @var $stmt mysqli_stmt|PDOStatement */
if (!$stmt = $this->connection->prepare($sql)) {
$errorInfo = $this->connection->errorInfo();
- $this->error = $errorInfo[2];
- $this->errorno = $errorInfo[1];
+ $this->error = (string)$errorInfo[2];
+ $this->errorno = (int)$errorInfo[1];
$retval = false;
$is_error = true;
break;
}
- foreach ($args AS $param => $value) {
+ foreach (array_keys($args) as $param) {
+ $data_type = PDO::PARAM_STR;
if (is_int($args[$param])) {
$data_type = PDO::PARAM_INT;
- } else {
- $data_type = PDO::PARAM_STR;
+ } elseif ($args[$param] !== null) {
+ $args[$param] = (string)$args[$param];
}
+
$stmt->bindParam($param, $args[$param], $data_type);
}
if (!$stmt->execute()) {
$errorInfo = $stmt->errorInfo();
- $this->error = $errorInfo[2];
- $this->errorno = $errorInfo[1];
+ $this->error = (string)$errorInfo[2];
+ $this->errorno = (int)$errorInfo[1];
$retval = false;
$is_error = true;
} else {
if (!$can_be_prepared || (count($args) == 0)) {
$retval = $this->connection->query($this->replaceParameters($sql, $args));
if ($this->connection->errno) {
- $this->error = $this->connection->error;
- $this->errorno = $this->connection->errno;
+ $this->error = (string)$this->connection->error;
+ $this->errorno = (int)$this->connection->errno;
$retval = false;
$is_error = true;
} else {
$stmt = $this->connection->stmt_init();
if (!$stmt->prepare($sql)) {
- $this->error = $stmt->error;
- $this->errorno = $stmt->errno;
+ $this->error = (string)$stmt->error;
+ $this->errorno = (int)$stmt->errno;
$retval = false;
$is_error = true;
break;
$param_types = '';
$values = [];
- foreach ($args AS $param => $value) {
+ foreach (array_keys($args) as $param) {
if (is_int($args[$param])) {
$param_types .= 'i';
} elseif (is_float($args[$param])) {
$param_types .= 'd';
} elseif (is_string($args[$param])) {
$param_types .= 's';
+ } elseif (is_object($args[$param]) && method_exists($args[$param], '__toString')) {
+ $param_types .= 's';
+ $args[$param] = (string)$args[$param];
} else {
$param_types .= 'b';
}
}
if (!$stmt->execute()) {
- $this->error = $this->connection->error;
- $this->errorno = $this->connection->errno;
+ $this->error = (string)$this->connection->error;
+ $this->errorno = (int)$this->connection->errno;
$retval = false;
$is_error = true;
} else {
}
}
- $this->error = $error;
- $this->errorno = $errorno;
+ $this->error = (string)$error;
+ $this->errorno = (int)$errorno;
}
- $this->profiler->saveTimestamp($stamp1, 'database');
+ $this->profiler->stopRecording();
if ($this->configCache->get('system', 'db_log')) {
$stamp2 = microtime(true);
$duration = round($duration, 3);
$backtrace = debug_backtrace(DEBUG_BACKTRACE_IGNORE_ARGS);
- @file_put_contents($this->configCache->get('system', 'db_log'), DateTimeFormat::utcNow() . "\t" . $duration . "\t" .
- basename($backtrace[1]["file"]) . "\t" .
- $backtrace[1]["line"] . "\t" . $backtrace[2]["function"] . "\t" .
- substr($this->replaceParameters($sql, $args), 0, 4000) . "\n", FILE_APPEND);
+ @file_put_contents(
+ $this->configCache->get('system', 'db_log'),
+ DateTimeFormat::utcNow() . "\t" . $duration . "\t" .
+ basename($backtrace[1]["file"]) . "\t" .
+ $backtrace[1]["line"] . "\t" . $backtrace[2]["function"] . "\t" .
+ substr($this->replaceParameters($sql, $args), 0, 4000) . "\n",
+ FILE_APPEND
+ );
}
}
return $retval;
* @return boolean Was the query successfull? False is returned only if an error occurred
* @throws \Exception
*/
- public function e($sql)
+ public function e(string $sql): bool
{
+ $retval = false;
- $stamp = microtime(true);
+ $this->profiler->startRecording('database_write');
$params = DBA::getParam(func_get_args());
$this->errorno = $errorno;
}
- $this->profiler->saveTimestamp($stamp, "database_write");
+ $this->profiler->stopRecording();
return $retval;
}
/**
* Check if data exists
*
- * @param string|array $table Table name or array [schema => table]
- * @param array $condition array of fields for condition
+ * @param string $table Table name in format schema.table (while scheme is optiona)
+ * @param array $condition Array of fields for condition
*
* @return boolean Are there rows for that condition?
* @throws \Exception
+ * @todo Please unwrap the DBStructure::existsTable() call so this method has one behavior only: checking existence on records
*/
- public function exists($table, $condition)
+ public function exists(string $table, array $condition): bool
{
if (empty($table)) {
return false;
*
* @param string $sql SQL statement
*
- * @return array first row of query
+ * @return array|bool first row of query or false on failure
* @throws \Exception
*/
- public function fetchFirst($sql)
+ public function fetchFirst(string $sql)
{
$params = DBA::getParam(func_get_args());
*
* @return int Number of rows
*/
- public function affectedRows()
+ public function affectedRows(): int
{
return $this->affected_rows;
}
*
* @return int Number of columns
*/
- public function columnCount($stmt)
+ public function columnCount($stmt): int
{
if (!is_object($stmt)) {
return 0;
*
* @return int Number of rows
*/
- public function numRows($stmt)
+ public function numRows($stmt): int
{
if (!is_object($stmt)) {
return 0;
/**
* Fetch a single row
*
- * @param PDOStatement|mysqli_stmt $stmt statement object
+ * @param bool|PDOStatement|mysqli_stmt $stmt statement object
*
- * @return array|false current row
+ * @return array|bool Current row or false on failure
*/
public function fetch($stmt)
{
- $stamp1 = microtime(true);
+ $this->profiler->startRecording('database');
$columns = [];
$result = $stmt->result_metadata();
$fields = $result->fetch_fields();
- foreach ($cols_num AS $param => $col) {
+ foreach ($cols_num as $param => $col) {
$columns[$fields[$param]->name] = $col;
}
}
- $this->profiler->saveTimestamp($stamp1, 'database');
+ $this->profiler->stopRecording();
return $columns;
}
/**
- * Insert a row into a table
+ * Insert a row into a table. Field value objects will be cast as string.
*
- * @param string|array $table Table name or array [schema => table]
- * @param array $param parameter array
- * @param int $duplicate_mode What to do on a duplicated entry
+ * @param string $table Table name in format schema.table (while scheme is optiona)
+ * @param array $param parameter array
+ * @param int $duplicate_mode What to do on a duplicated entry
*
* @return boolean was the insert successful?
* @throws \Exception
*/
- public function insert($table, array $param, int $duplicate_mode = self::INSERT_DEFAULT)
+ public function insert(string $table, array $param, int $duplicate_mode = self::INSERT_DEFAULT): bool
{
if (empty($table) || empty($param)) {
$this->logger->info('Table and fields have to be set');
$param = $this->castFields($table, $param);
- $table_string = DBA::buildTableString($table);
+ $table_string = DBA::buildTableString([$table]);
$fields_string = implode(', ', array_map([DBA::class, 'quoteIdentifier'], array_keys($param)));
* Inserts a row with the provided data in the provided table.
* If the data corresponds to an existing row through a UNIQUE or PRIMARY index constraints, it updates the row instead.
*
- * @param string|array $table Table name or array [schema => table]
- * @param array $param parameter array
- *
+ * @param string $table Table name in format schema.table (while scheme is optiona)
+ * @param array $param parameter array
* @return boolean was the insert successful?
* @throws \Exception
*/
- public function replace($table, array $param)
+ public function replace(string $table, array $param): bool
{
if (empty($table) || empty($param)) {
$this->logger->info('Table and fields have to be set');
$param = $this->castFields($table, $param);
- $table_string = DBA::buildTableString($table);
+ $table_string = DBA::buildTableString([$table]);
$fields_string = implode(', ', array_map([DBA::class, 'quoteIdentifier'], array_keys($param)));
*
* @return integer Last inserted id
*/
- public function lastInsertId()
+ public function lastInsertId(): int
{
switch ($this->driver) {
case self::PDO:
*
* This function can be extended in the future to accept a table array as well.
*
- * @param string|array $table Table name or array [schema => table]
- *
+ * @param string $table Table name in format schema.table (while scheme is optiona)
* @return boolean was the lock successful?
* @throws \Exception
*/
- public function lock($table)
+ public function lock(string $table): bool
{
// See here: https://dev.mysql.com/doc/refman/5.7/en/lock-tables-and-transactions.html
if ($this->driver == self::PDO) {
$this->connection->autocommit(false);
}
- $success = $this->e("LOCK TABLES " . DBA::buildTableString($table) . " WRITE");
+ $success = $this->e("LOCK TABLES " . DBA::buildTableString([$table]) . " WRITE");
if ($this->driver == self::PDO) {
$this->connection->setAttribute(PDO::ATTR_EMULATE_PREPARES, $this->pdo_emulate_prepares);
* @return boolean was the unlock successful?
* @throws \Exception
*/
- public function unlock()
+ public function unlock(): bool
{
// See here: https://dev.mysql.com/doc/refman/5.7/en/lock-tables-and-transactions.html
$this->performCommit();
*
* @return boolean Was the command executed successfully?
*/
- public function transaction()
+ public function transaction(): bool
{
if (!$this->performCommit()) {
return false;
return true;
}
- protected function performCommit()
+ /**
+ * Performs the commit
+ *
+ * @return boolean Was the command executed successfully?
+ */
+ protected function performCommit(): bool
{
switch ($this->driver) {
case self::PDO:
*
* @return boolean Was the command executed successfully?
*/
- public function commit()
+ public function commit(): bool
{
if (!$this->performCommit()) {
return false;
*
* @return boolean Was the command executed successfully?
*/
- public function rollback()
+ public function rollback(): bool
{
$ret = false;
$ret = $this->connection->rollback();
break;
}
+
$this->in_transaction = false;
return $ret;
}
- /**
- * Build the array with the table relations
- *
- * The array is build from the database definitions in DBStructure.php
- *
- * This process must only be started once, since the value is cached.
- */
- private function buildRelationData()
- {
- $definition = DBStructure::definition($this->configCache->get('system', 'basepath'));
-
- 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) {
- $this->relation[$rel_table][$rel_field][$table][] = $field;
- }
- }
- }
- }
- }
-
/**
* Delete a row from a table
*
- * Note: this methods does NOT accept schema => table arrays because of the complex relation stuff.
- *
* @param string $table Table name
* @param array $conditions Field condition(s)
- * @param array $options
- * - cascade: If true we delete records in other tables that depend on the one we're deleting through
- * relations (default: true)
- * @param array $callstack Internal use: prevent endless loops
*
* @return boolean was the delete successful?
* @throws \Exception
*/
- public function delete($table, array $conditions, array $options = [], array &$callstack = [])
+ public function delete(string $table, array $conditions): bool
{
if (empty($table) || empty($conditions)) {
$this->logger->info('Table and conditions have to be set');
return false;
}
- $commands = [];
-
- // Create a key for the loop prevention
- $key = $table . ':' . json_encode($conditions);
+ $table_string = DBA::buildTableString([$table]);
- // We quit when this key already exists in the callstack.
- if (isset($callstack[$key])) {
- return true;
- }
+ $condition_string = DBA::buildCondition($conditions);
- $callstack[$key] = true;
-
- $commands[$key] = ['table' => $table, 'conditions' => $conditions];
-
- // Don't use "defaults" here, since it would set "false" to "true"
- if (isset($options['cascade'])) {
- $cascade = $options['cascade'];
- } else {
- $cascade = true;
- }
-
- // To speed up the whole process we cache the table relations
- if ($cascade && count($this->relation) == 0) {
- $this->buildRelationData();
- }
-
- // Is there a relation entry for the table?
- if ($cascade && isset($this->relation[$table])) {
- // We only allow a simple "one field" relation.
- $field = array_keys($this->relation[$table])[0];
- $rel_def = array_values($this->relation[$table])[0];
-
- // Create a key for preventing double queries
- $qkey = $field . '-' . $table . ':' . json_encode($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($conditions) == 1) && ($field == array_keys($conditions)[0])) {
- foreach ($rel_def AS $rel_table => $rel_fields) {
- foreach ($rel_fields AS $rel_field) {
- $this->delete($rel_table, [$rel_field => array_values($conditions)[0]], $options, $callstack);
- }
- }
- // We quit when this key already exists in the callstack.
- } elseif (!isset($callstack[$qkey])) {
- $callstack[$qkey] = true;
-
- // Fetch all rows that are to be deleted
- $data = $this->select($table, [$field], $conditions);
-
- while ($row = $this->fetch($data)) {
- $this->delete($table, [$field => $row[$field]], $options, $callstack);
- }
-
- $this->close($data);
-
- // Since we had split the delete command we don't need the original command anymore
- unset($commands[$key]);
- }
- }
-
- // Now we finalize the process
- $do_transaction = !$this->in_transaction;
-
- if ($do_transaction) {
- $this->transaction();
- }
-
- $compacted = [];
- $counter = [];
-
- foreach ($commands AS $command) {
- $conditions = $command['conditions'];
- reset($conditions);
- $first_key = key($conditions);
-
- $condition_string = DBA::buildCondition($conditions);
-
- if ((count($command['conditions']) > 1) || is_int($first_key)) {
- $sql = "DELETE FROM " . DBA::quoteIdentifier($command['table']) . " " . $condition_string;
- $this->logger->info($this->replaceParameters($sql, $conditions), ['callstack' => System::callstack(6), 'internal_callstack' => $callstack]);
-
- if (!$this->e($sql, $conditions)) {
- if ($do_transaction) {
- $this->rollback();
- }
- return false;
- }
- } else {
- $key_table = $command['table'];
- $key_condition = array_keys($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
- $i = isset($counter[$key_table][$key_condition]) ? $counter[$key_table][$key_condition] : 0;
- if (isset($compacted[$key_table][$key_condition][$i]) && count($compacted[$key_table][$key_condition][$i]) > 100) {
- ++$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) {
- $sql = "DELETE FROM " . DBA::quoteIdentifier($table) . " WHERE " . DBA::quoteIdentifier($field) . " IN (" .
- substr(str_repeat("?, ", count($field_values)), 0, -2) . ");";
-
- $this->logger->info($this->replaceParameters($sql, $field_values), ['callstack' => System::callstack(6), 'internal_callstack' => $callstack]);
-
- if (!$this->e($sql, $field_values)) {
- if ($do_transaction) {
- $this->rollback();
- }
- return false;
- }
- }
- }
- }
- if ($do_transaction) {
- $this->commit();
- }
- return true;
+ $sql = "DELETE FROM " . $table_string . " " . $condition_string;
+ $this->logger->debug($this->replaceParameters($sql, $conditions), ['callstack' => System::callstack(6)]);
+ return $this->e($sql, $conditions);
}
/**
- * Updates rows
+ * Updates rows in the database. Field value objects will be cast as string.
*
- * Updates rows in the database. When $old_fields is set to an array,
+ * When $old_fields is set to an array,
* the system will only do an update if the fields in that array changed.
*
* Attention:
* Only set $old_fields to a boolean value when you are sure that you will update a single row.
* When you set $old_fields to "true" then $fields must contain all relevant fields!
*
- * @param string|array $table Table name or array [schema => table]
+ * @param string $table Table name in format schema.table (while scheme is optiona)
* @param array $fields contains the fields that are updated
* @param array $condition condition array with the key values
- * @param array|boolean $old_fields array with the old field values that are about to be replaced (true = update on duplicate)
+ * @param array|boolean $old_fields array with the old field values that are about to be replaced (true = update on duplicate, false = don't update identical fields)
+ * @param array $params Parameters: "ignore" If set to "true" then the update is done with the ignore parameter
*
* @return boolean was the update successfull?
* @throws \Exception
+ * @todo Implement "bool $update_on_duplicate" to avoid mixed type for $old_fields
*/
- public function update($table, $fields, $condition, $old_fields = [])
+ public function update(string $table, array $fields, array $condition, $old_fields = [], array $params = [])
{
if (empty($table) || empty($fields) || empty($condition)) {
$this->logger->info('Table, fields and condition have to be set');
}
}
- foreach ($old_fields AS $fieldname => $content) {
+ foreach ($old_fields as $fieldname => $content) {
if (isset($fields[$fieldname]) && !is_null($content) && ($fields[$fieldname] == $content)) {
unset($fields[$fieldname]);
}
$fields = $this->castFields($table, $fields);
- $table_string = DBA::buildTableString($table);
+ $table_string = DBA::buildTableString([$table]);
$condition_string = DBA::buildCondition($condition);
- $sql = "UPDATE " . $table_string . " SET "
+ if (!empty($params['ignore'])) {
+ $ignore = 'IGNORE ';
+ } else {
+ $ignore = '';
+ }
+
+ $sql = "UPDATE " . $ignore . $table_string . " SET "
. implode(" = ?, ", array_map([DBA::class, 'quoteIdentifier'], array_keys($fields))) . " = ?"
. $condition_string;
// Combines the updated fields parameter values with the condition parameter values
- $params = array_merge(array_values($fields), $condition);
+ $params = array_merge(array_values($fields), $condition);
return $this->e($sql, $params);
}
/**
* Retrieve a single record from a table and returns it in an associative array
*
- * @param string|array $table
- * @param array $fields
- * @param array $condition
- * @param array $params
+ * @param string $table Table name in format schema.table (while scheme is optiona)
+ * @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 bool|array
* @throws \Exception
* @see $this->select
*/
- public function selectFirst($table, array $fields = [], array $condition = [], $params = [])
+ public function selectFirst(string $table, array $fields = [], array $condition = [], array $params = [])
{
$params['limit'] = 1;
$result = $this->select($table, $fields, $condition, $params);
/**
* Select rows from a table and fills an array with the data
*
- * @param string|array $table Table name or array [schema => table]
- * @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
- *
+ * @param string $table Table name in format schema.table (while scheme is optiona)
+ * @param array $fields Array of selected fields, empty for all
+ * @param array $condition Array of fields for condition
+ * @param array $params Array of several parameters
* @return array Data array
* @throws \Exception
* @see self::select
*/
- public function selectToArray($table, array $fields = [], array $condition = [], array $params = [])
+ public function selectToArray(string $table, array $fields = [], array $condition = [], array $params = [])
{
return $this->toArray($this->select($table, $fields, $condition, $params));
}
+ /**
+ * Escape fields, adding special treatment for "group by" handling
+ *
+ * @param array $fields
+ * @param array $options
+ * @return array Escaped fields
+ */
+ private function escapeFields(array $fields, array $options): array
+ {
+ // In the case of a "GROUP BY" we have to add all the ORDER fields to the fieldlist.
+ // This needs to done to apply the "ANY_VALUE(...)" treatment from below to them.
+ // Otherwise MySQL would report errors.
+ if (!empty($options['group_by']) && !empty($options['order'])) {
+ foreach ($options['order'] as $key => $field) {
+ if (!is_int($key)) {
+ if (!in_array($key, $fields)) {
+ $fields[] = $key;
+ }
+ } else {
+ if (!in_array($field, $fields)) {
+ $fields[] = $field;
+ }
+ }
+ }
+ }
+
+ array_walk($fields, function (&$value, $key) use ($options) {
+ $field = $value;
+ $value = DBA::quoteIdentifier($field);
+
+ if (!empty($options['group_by']) && !in_array($field, $options['group_by'])) {
+ $value = 'ANY_VALUE(' . $value . ') AS ' . $value;
+ }
+ });
+
+ return $fields;
+ }
+
/**
* Select rows from a table
*
*
* $data = DBA::select($table, $fields, $condition, $params);
*
- * @param string|array $table Table name or array [schema => table]
- * @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
+ * @param string $table Table name in format schema.table (while scheme is optiona)
+ * @param array $fields Array of selected fields, empty for all
+ * @param array $condition Array of fields for condition
+ * @param array $params Array of several parameters
* @return boolean|object
* @throws \Exception
*/
- public function select($table, array $fields = [], array $condition = [], array $params = [])
+ public function select(string $table, array $fields = [], array $condition = [], array $params = [])
{
if (empty($table)) {
return false;
}
if (count($fields) > 0) {
- $select_string = implode(', ', array_map([DBA::class, 'quoteIdentifier'], $fields));
+ $fields = $this->escapeFields($fields, $params);
+ $select_string = implode(', ', $fields);
} else {
$select_string = '*';
}
- $table_string = DBA::buildTableString($table);
+ $table_string = DBA::buildTableString([$table]);
$condition_string = DBA::buildCondition($condition);
/**
* Counts the rows from a table satisfying the provided condition
*
- * @param string|array $table Table name or array [schema => table]
- * @param array $condition Array of fields for condition
- * @param array $params Array of several parameters
+ * @param string $table Table name in format schema.table (while scheme is optiona)
+ * @param array $condition Array of fields for condition
+ * @param array $params Array of several parameters
*
- * @return int
+ * @return int Count of rows
*
* Example:
* $table = "post";
* $count = DBA::count($table, $condition);
* @throws \Exception
*/
- public function count($table, array $condition = [], array $params = [])
+ public function count(string $table, array $condition = [], array $params = []): int
{
if (empty($table)) {
- return false;
+ throw new InvalidArgumentException('Parameter "table" cannot be empty.');
}
- $table_string = DBA::buildTableString($table);
+ $table_string = DBA::buildTableString([$table]);
$condition_string = DBA::buildCondition($condition);
$row = $this->fetchFirst($sql, $condition);
- // Ensure to always return either a "null" or a numeric value
- return is_numeric($row['count']) ? (int)$row['count'] : $row['count'];
+ if (!isset($row['count'])) {
+ $this->logger->notice('Invalid count.', ['table' => $table, 'row' => $row, 'expression' => $expression, 'condition' => $condition_string, 'callstack' => System::callstack()]);
+ return 0;
+ } else {
+ return (int)$row['count'];
+ }
}
/**
* Fills an array with data from a query
*
- * @param object $stmt statement object
- * @param bool $do_close
+ * @param object $stmt statement object
+ * @param bool $do_close Close database connection after last row
+ * @param int $count maximum number of rows to be fetched
*
* @return array Data array
*/
- public function toArray($stmt, $do_close = true)
+ public function toArray($stmt, bool $do_close = true, int $count = 0): array
{
if (is_bool($stmt)) {
return [];
$data = [];
while ($row = $this->fetch($stmt)) {
$data[] = $row;
+ if (($count != 0) && (count($data) == $count)) {
+ return $data;
+ }
}
if ($do_close) {
* @param array $fields
* @return array casted fields
*/
- public function castFields(string $table, array $fields) {
+ public function castFields(string $table, array $fields): array
+ {
// When there is no data, we don't need to do something
if (empty($fields)) {
return $fields;
$types = [];
- $tables = DBStructure::definition('', false);
+ $tables = $this->dbaDefinition->getAll();
if (empty($tables[$table])) {
// When a matching table wasn't found we check if it is a view
- $views = View::definition('', false);
+ $views = $this->viewDefinition->getAll();
if (empty($views[$table])) {
return $fields;
}
- foreach(array_keys($fields) as $field) {
+ foreach (array_keys($fields) as $field) {
if (!empty($views[$table]['fields'][$field])) {
$viewdef = $views[$table]['fields'][$field];
if (!empty($tables[$viewdef[0]]['fields'][$viewdef[1]]['type'])) {
}
}
- return $fields;
+ return $fields;
}
-
+
/**
* Returns the error number of the last query
*
* @return string Error number (0 if no error)
*/
- public function errorNo()
+ public function errorNo(): int
{
return $this->errorno;
}
*
* @return string Error message ('' if no error)
*/
- public function errorMessage()
+ public function errorMessage(): string
{
return $this->error;
}
*
* @return boolean was the close successful?
*/
- public function close($stmt)
+ public function close($stmt): bool
{
- $stamp1 = microtime(true);
+ $this->profiler->startRecording('database');
if (!is_object($stmt)) {
return false;
break;
}
- $this->profiler->saveTimestamp($stamp1, 'database');
+ $this->profiler->stopRecording();
return $ret;
}
* 'amount' => Number of concurrent database processes
* @throws \Exception
*/
- public function processlist()
+ public function processlist(): array
{
- $ret = $this->p("SHOW PROCESSLIST");
+ $ret = $this->p('SHOW PROCESSLIST');
$data = $this->toArray($ret);
$processes = 0;
$states = [];
foreach ($data as $process) {
- $state = trim($process["State"]);
+ $state = trim($process['State']);
// Filter out all non blocking processes
- if (!in_array($state, ["", "init", "statistics", "updating"])) {
+ if (!in_array($state, ['', 'init', 'statistics', 'updating'])) {
++$states[$state];
++$processes;
}
}
- $statelist = "";
+ $statelist = '';
foreach ($states as $state => $usage) {
- if ($statelist != "") {
- $statelist .= ", ";
+ if ($statelist != '') {
+ $statelist .= ', ';
}
- $statelist .= $state . ": " . $usage;
+ $statelist .= $state . ': ' . $usage;
}
- return (["list" => $statelist, "amount" => $processes]);
+ return (['list' => $statelist, 'amount' => $processes]);
}
/**
* Fetch a database variable
*
* @param string $name
- * @return string content
+ * @return string|null content or null if inexistent
+ * @throws \Exception
*/
public function getVariable(string $name)
{
* Checks if $array is a filled array with at least one entry.
*
* @param mixed $array A filled array with at least one entry
- *
* @return boolean Whether $array is a filled array or an object with rows
*/
- public function isResult($array)
+ public function isResult($array): bool
{
// It could be a return value from an update statement
if (is_bool($array)) {
* @param mixed $value Array value
* @param string $key Array key
* @param boolean $add_quotation add quotation marks for string values
- *
* @return void
*/
- private function escapeArrayCallback(&$value, $key, $add_quotation)
+ private function escapeArrayCallback(&$value, string $key, bool $add_quotation)
{
if (!$add_quotation) {
if (is_bool($value)) {
*
* @param mixed $arr Array with values to be escaped
* @param boolean $add_quotation add quotation marks for string values
- *
* @return void
*/
- public function escapeArray(&$arr, $add_quotation = false)
+ public function escapeArray(&$arr, bool $add_quotation = false)
{
array_walk($arr, [$this, 'escapeArrayCallback'], $add_quotation);
}
+
+ /**
+ * Replaces a string in the provided fields of the provided table
+ *
+ * @param string $table Table name
+ * @param array $fields List of field names in the provided table
+ * @param string $search String to search for
+ * @param string $replace String to replace with
+ * @return void
+ * @throws \Exception
+ */
+ public function replaceInTableFields(string $table, array $fields, string $search, string $replace)
+ {
+ $search = $this->escape($search);
+ $replace = $this->escape($replace);
+
+ $upd = [];
+ foreach ($fields as $field) {
+ $field = DBA::quoteIdentifier($field);
+ $upd[] = "$field = REPLACE($field, '$search', '$replace')";
+ }
+
+ $upds = implode(', ', $upd);
+
+ $r = $this->e(sprintf("UPDATE %s SET %s;", DBA::quoteIdentifier($table), $upds));
+
+ if (!$this->isResult($r)) {
+ throw new \RuntimeException("Failed updating `$table`: " . $this->errorMessage());
+ }
+ }
}