<?php
+
+use Friendica\App;
+use Friendica\Core\L10n;
use Friendica\Core\System;
use Friendica\Database\DBM;
use Friendica\Database\DBStructure;
-
-require_once('include/datetime.php');
+use Friendica\Util\DateTimeFormat;
/**
* @class MySQL database class
*/
class dba {
- public static $connected = true;
+ public static $connected = false;
private static $_server_info = '';
private static $db;
private static $errorno = 0;
private static $affected_rows = 0;
private static $in_transaction = false;
- private static $relation = array();
-
- public static function connect($serveraddr, $user, $pass, $db, $install = false) {
- if (!is_null(self::$db)) {
+ private static $in_retrial = false;
+ private static $relation = [];
+ private static $db_serveraddr = '';
+ private static $db_user = '';
+ private static $db_pass = '';
+ private static $db_name = '';
+
+ public static function connect($serveraddr, $user, $pass, $db) {
+ if (!is_null(self::$db) && self::connected()) {
return true;
}
$stamp1 = microtime(true);
+ // We are storing these values for being able to perform a reconnect
+ self::$db_serveraddr = $serveraddr;
+ self::$db_user = $user;
+ self::$db_pass = $pass;
+ self::$db_name = $db;
+
$serveraddr = trim($serveraddr);
$serverdata = explode(':', $serveraddr);
$db = trim($db);
if (!(strlen($server) && strlen($user))) {
- self::$connected = false;
- self::$db = null;
return false;
}
- if ($install) {
- if (strlen($server) && ($server !== 'localhost') && ($server !== '127.0.0.1')) {
- if (! dns_get_record($server, DNS_A + DNS_CNAME + DNS_PTR)) {
- self::$error = sprintf(t('Cannot locate DNS info for database server \'%s\''), $server);
- self::$connected = false;
- self::$db = null;
- return false;
- }
- }
- }
-
if (class_exists('\PDO') && in_array('mysql', PDO::getAvailableDrivers())) {
self::$driver = 'pdo';
$connect = "mysql:host=".$server.";dbname=".$db;
}
try {
self::$db = @new PDO($connect, $user, $pass);
+ self::$db->setAttribute(PDO::ATTR_EMULATE_PREPARES, false);
self::$connected = true;
} catch (PDOException $e) {
- self::$connected = false;
}
}
// No suitable SQL driver was found.
if (!self::$connected) {
+ self::$driver = null;
self::$db = null;
- if (!$install) {
- System::unavailable();
- }
}
$a->save_timestamp($stamp1, "network");
- return true;
+ return self::$connected;
+ }
+
+ /**
+ * Disconnects the current database connection
+ */
+ public static function disconnect()
+ {
+ if (is_null(self::$db)) {
+ return;
+ }
+
+ switch (self::$driver) {
+ case 'pdo':
+ self::$db = null;
+ break;
+ case 'mysqli':
+ self::$db->close();
+ self::$db = null;
+ break;
+ }
+ }
+
+ /**
+ * Perform a reconnect of an existing database connection
+ */
+ public static function reconnect() {
+ self::disconnect();
+
+ $ret = self::connect(self::$db_serveraddr, self::$db_user, self::$db_pass, self::$db_name);
+ return $ret;
+ }
+
+ /**
+ * Return the database object.
+ * @return PDO|mysqli
+ */
+ public static function get_db()
+ {
+ return self::$db;
}
/**
*/
public static function database_name() {
$ret = self::p("SELECT DATABASE() AS `db`");
- $data = self::inArray($ret);
+ $data = self::inArray($ret);
return $data[0]['db'];
}
*
* @param string $query The database query that will be analyzed
*/
- private static function log_index($query) {
+ private static function logIndex($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;
}
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".
* @return string The input SQL string modified if necessary.
*/
public static function clean_query($sql) {
- $search = array("\t", "\n", "\r", " ");
- $replace = array(' ', ' ', ' ', ' ');
+ $search = ["\t", "\n", "\r", " "];
+ $replace = [' ', ' ', ' ', ' '];
do {
$oldsql = $sql;
$sql = str_replace($search, $replace, $sql);
* @param array $args The parameters that are to replace the ? placeholders
* @return string The replaced SQL query
*/
- private static function replace_parameters($sql, $args) {
+ private static function replaceParameters($sql, $args) {
$offset = 0;
foreach ($args AS $param => $value) {
if (is_int($args[$param]) || is_float($args[$param])) {
* For all regular queries please use dba::select or dba::exists
*
* @param string $sql SQL statement
- * @return bool|object statement object
+ * @return bool|object statement object or result object
*/
public static function p($sql) {
$a = get_app();
// 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)) {
}
foreach ($args AS $param => $value) {
- $stmt->bindParam($param, $args[$param]);
+ if (is_int($args[$param])) {
+ $data_type = PDO::PARAM_INT;
+ } else {
+ $data_type = PDO::PARAM_STR;
+ }
+ $stmt->bindParam($param, $args[$param], $data_type);
}
if (!$stmt->execute()) {
// 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)) {
- $retval = self::$db->query(self::replace_parameters($sql, $args));
+ $retval = self::$db->query(self::replaceParameters($sql, $args));
if (self::$db->errno) {
self::$error = self::$db->error;
self::$errorno = self::$db->errno;
break;
}
- $params = '';
- $values = array();
+ $param_types = '';
+ $values = [];
foreach ($args AS $param => $value) {
if (is_int($args[$param])) {
- $params .= 'i';
+ $param_types .= 'i';
} elseif (is_float($args[$param])) {
- $params .= 'd';
+ $param_types .= 'd';
} elseif (is_string($args[$param])) {
- $params .= 's';
+ $param_types .= 's';
} else {
- $params .= 'b';
+ $param_types .= 'b';
}
$values[] = &$args[$param];
}
if (count($values) > 0) {
- array_unshift($values, $params);
- call_user_func_array(array($stmt, 'bind_param'), $values);
+ array_unshift($values, $param_types);
+ call_user_func_array([$stmt, 'bind_param'], $values);
}
if (!$stmt->execute()) {
$errorno = self::$errorno;
logger('DB Error '.self::$errorno.': '.self::$error."\n".
- System::callstack(8)."\n".self::replace_parameters($sql, $params));
+ System::callstack(8)."\n".self::replaceParameters($sql, $args));
+
+ // On a lost connection we try to reconnect - but only once.
+ if ($errorno == 2006) {
+ if (self::$in_retrial || !self::reconnect()) {
+ // It doesn't make sense to continue when the database connection was lost
+ if (self::$in_retrial) {
+ logger('Giving up retrial because of database error '.$errorno.': '.$error);
+ } else {
+ logger("Couldn't reconnect after database error ".$errorno.': '.$error);
+ }
+ exit(1);
+ } else {
+ // We try it again
+ logger('Reconnected after database error '.$errorno.': '.$error);
+ self::$in_retrial = true;
+ $ret = self::p($sql, $args);
+ self::$in_retrial = false;
+ return $ret;
+ }
+ }
self::$error = $error;
self::$errorno = $errorno;
$duration = round($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, $args), 0, 2000)."\n", FILE_APPEND);
+ substr(self::replaceParameters($sql, $args), 0, 2000)."\n", FILE_APPEND);
}
}
return $retval;
$errorno = self::$errorno;
logger('DB Error '.self::$errorno.': '.self::$error."\n".
- System::callstack(8)."\n".self::replace_parameters($sql, $params));
+ System::callstack(8)."\n".self::replaceParameters($sql, $params));
+
+ // On a lost connection we simply quit.
+ // A reconnect like in self::p could be dangerous with modifications
+ if ($errorno == 2006) {
+ logger('Giving up because of database error '.$errorno.': '.$error);
+ exit(1);
+ }
self::$error = $error;
self::$errorno = $errorno;
return false;
}
- $fields = array();
+ $fields = [];
- $array_element = each($condition);
- $array_key = $array_element['key'];
- if (!is_int($array_key)) {
- $fields = array($array_key);
+ reset($condition);
+ $first_key = key($condition);
+ if (!is_int($first_key)) {
+ $fields = [$first_key];
}
$stmt = self::select($table, $fields, $condition, ['limit' => 1]);
/**
* Fetches the first row
- *
- * Please use dba::selectOne 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
/**
* @brief Fetch a single row
*
- * @param PDOStatement|mysqli_result|mysqli_stmt $stmt statement object
+ * @param mixed $stmt statement object
* @return array current row
*/
public static function fetch($stmt) {
+ $a = get_app();
+
+ $stamp1 = microtime(true);
+
+ $columns = [];
+
if (!is_object($stmt)) {
return false;
}
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;
}
+
+ $a->save_timestamp($stamp1, 'database');
+
+ return $columns;
}
/**
*/
public static function lock($table) {
// See here: https://dev.mysql.com/doc/refman/5.7/en/lock-tables-and-transactions.html
- self::e("SET autocommit=0");
+ if (self::$driver == 'pdo') {
+ self::e("SET autocommit=0");
+ self::$db->setAttribute(PDO::ATTR_EMULATE_PREPARES, true);
+ } else {
+ self::$db->autocommit(false);
+ }
+
$success = self::e("LOCK TABLES `".self::escape($table)."` WRITE");
+
+ if (self::$driver == 'pdo') {
+ self::$db->setAttribute(PDO::ATTR_EMULATE_PREPARES, false);
+ }
+
if (!$success) {
- self::e("SET autocommit=1");
+ if (self::$driver == 'pdo') {
+ self::e("SET autocommit=1");
+ } else {
+ self::$db->autocommit(true);
+ }
} else {
self::$in_transaction = true;
}
*/
public static function unlock() {
// See here: https://dev.mysql.com/doc/refman/5.7/en/lock-tables-and-transactions.html
- self::e("COMMIT");
+ self::performCommit();
+
+ if (self::$driver == 'pdo') {
+ self::$db->setAttribute(PDO::ATTR_EMULATE_PREPARES, true);
+ }
+
$success = self::e("UNLOCK TABLES");
- self::e("SET autocommit=1");
+
+ if (self::$driver == 'pdo') {
+ self::$db->setAttribute(PDO::ATTR_EMULATE_PREPARES, false);
+ self::e("SET autocommit=1");
+ } else {
+ self::$db->autocommit(true);
+ }
+
self::$in_transaction = false;
return $success;
}
* @return boolean Was the command executed successfully?
*/
public static function transaction() {
- if (!self::e('COMMIT')) {
+ if (!self::performCommit()) {
return false;
}
- if (!self::e('START TRANSACTION')) {
- return false;
+
+ switch (self::$driver) {
+ case 'pdo':
+ if (self::$db->inTransaction()) {
+ break;
+ }
+ if (!self::$db->beginTransaction()) {
+ return false;
+ }
+ break;
+ case 'mysqli':
+ if (!self::$db->begin_transaction()) {
+ return false;
+ }
+ break;
}
+
self::$in_transaction = true;
return true;
}
+ private static function performCommit()
+ {
+ switch (self::$driver) {
+ case 'pdo':
+ if (!self::$db->inTransaction()) {
+ return true;
+ }
+ return self::$db->commit();
+ case 'mysqli':
+ return self::$db->commit();
+ }
+ return true;
+ }
+
/**
* @brief Does a commit
*
* @return boolean Was the command executed successfully?
*/
public static function commit() {
- if (!self::e('COMMIT')) {
+ if (!self::performCommit()) {
return false;
}
self::$in_transaction = false;
* @return boolean Was the command executed successfully?
*/
public static function rollback() {
- if (!self::e('ROLLBACK')) {
- return false;
+ switch (self::$driver) {
+ case 'pdo':
+ if (!self::$db->inTransaction()) {
+ $ret = true;
+ break;
+ }
+ $ret = self::$db->rollBack();
+ break;
+ case 'mysqli':
+ $ret = self::$db->rollback();
+ break;
}
self::$in_transaction = false;
- return true;
+ return $ret;
}
/**
*
* This process must only be started once, since the value is cached.
*/
- private static function build_relation_data() {
+ private static function buildRelationData() {
$definition = DBStructure::definition();
foreach ($definition AS $table => $structure) {
/**
* @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 array $options
+ * - cascade: If true we delete records in other tables that depend on the one we're deleting through
+ * relations (default: true)
+ * @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()) {
-
- if (empty($table) || empty($param)) {
- logger('Table and condition have to be set');
+ public static function delete($table, array $conditions, array $options = [], $in_process = false, array &$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 = $table . ':' . json_encode($conditions);
// We quit when this key already exists in the callstack.
if (isset($callstack[$key])) {
$table = self::escape($table);
- $commands[$key] = array('table' => $table, 'param' => $param);
+ $commands[$key] = ['table' => $table, 'conditions' => $conditions];
+
+ $cascade = defaults($options, 'cascade', true);
// To speed up the whole process we cache the table relations
- if (count(self::$relation) == 0) {
- self::build_relation_data();
+ if ($cascade && count(self::$relation) == 0) {
+ self::buildRelationData();
}
// Is there a relation entry for the table?
- if (isset(self::$relation[$table])) {
+ if ($cascade && isset(self::$relation[$table])) {
// We only allow a simple "one field" relation.
$field = array_keys(self::$relation[$table])[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 . '-' . $table . ':' . json_encode($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($param) == 1) && ($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]], $options, 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]], $options, 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);
- $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))."` = ?";
- }
+ $conditions = $command['conditions'];
+ reset($conditions);
+ $first_key = key($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);
+ $condition_string = self::buildCondition($conditions);
- if (!self::e($sql, $condition)) {
+ if ((count($command['conditions']) > 1) || is_int($first_key)) {
+ $sql = "DELETE FROM `" . $command['table'] . "`" . $condition_string;
+ logger(self::replaceParameters($sql, $conditions), LOGGER_DATA);
+
+ if (!self::e($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][$key_condition];
+ if (isset($compacted[$key_table][$key_condition][$i]) && count($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, $field_values), LOGGER_DATA);
+ logger(self::replaceParameters($sql, $field_values), LOGGER_DATA);
if (!self::e($sql, $field_values)) {
if ($do_transaction) {
*
* @return boolean was the update successfull?
*/
- public static function update($table, $fields, $condition, $old_fields = array()) {
+ public static function update($table, $fields, $condition, $old_fields = []) {
if (empty($table) || empty($fields) || empty($condition)) {
logger('Table, fields and condition have to be set');
$table = self::escape($table);
- $array_element = each($condition);
- $array_key = $array_element['key'];
- if (is_int($array_key)) {
- $condition_string = " WHERE ".array_shift($condition);
- } else {
- $condition_string = " WHERE `".implode("` = ? AND `", array_keys($condition))."` = ?";
- }
+ $condition_string = self::buildCondition($condition);
if (is_bool($old_fields)) {
$do_insert = $old_fields;
$values = array_merge($condition, $fields);
return self::insert($table, $values, $do_insert);
}
- $old_fields = array();
+ $old_fields = [];
}
}
/**
* 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
return false;
}
+ $table = self::escape($table);
+
if (count($fields) > 0) {
$select_fields = "`" . implode("`, `", array_values($fields)) . "`";
} else {
$condition_string = self::buildCondition($condition);
- if (isset($params['order'])) {
- $order_string = " ORDER BY ";
- foreach ($params['order'] AS $fields => $order) {
- if (!is_int($fields)) {
- $order_string .= "`" . $fields . "` " . ($order ? "DESC" : "ASC") . ", ";
- } else {
- $order_string .= "`" . $order . "`, ";
- }
- }
- $order_string = substr($order_string, 0, -2);
- }
-
- if (isset($params['limit']) && is_int($params['limit'])) {
- $limit_string = " LIMIT " . $params['limit'];
- }
-
- if (isset($params['limit']) && is_array($params['limit'])) {
- $limit_string = " LIMIT " . intval($params['limit'][0]) . ", " . intval($params['limit'][1]);
- }
+ $param_string = self::buildParameter($params);
- $sql = "SELECT " . $select_fields . " FROM `" . $table . "`" . $condition_string . $order_string . $limit_string;
+ $sql = "SELECT " . $select_fields . " FROM `" . $table . "`" . $condition_string . $param_string;
$result = self::p($sql, $condition);
* @param array $condition
* @return string
*/
- private static function buildCondition(array &$condition = [])
+ public 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);
+ reset($condition);
+ $first_key = key($condition);
+ if (is_int($first_key)) {
+ $condition_string = " WHERE (" . array_shift($condition) . ")";
} else {
- $condition_string = " WHERE `".implode("` = ? AND `", array_keys($condition))."` = ?";
+ $new_values = [];
+ $condition_string = "";
+ foreach ($condition as $field => $value) {
+ if ($condition_string != "") {
+ $condition_string .= " AND ";
+ }
+ if (is_array($value)) {
+ /* Workaround for MySQL Bug #64791.
+ * Never mix data types inside any IN() condition.
+ * In case of mixed types, cast all as string.
+ * Logic needs to be consistent with dba::p() data types.
+ */
+ $is_int = false;
+ $is_alpha = false;
+ foreach ($value as $single_value) {
+ if (is_int($single_value)) {
+ $is_int = true;
+ } else {
+ $is_alpha = true;
+ }
+ }
+
+ if ($is_int && $is_alpha) {
+ foreach ($value as &$ref) {
+ if (is_int($ref)) {
+ $ref = (string)$ref;
+ }
+ }
+ unset($ref); //Prevent accidental re-use.
+ }
+
+ $new_values = array_merge($new_values, array_values($value));
+ $placeholders = substr(str_repeat("?, ", count($value)), 0, -2);
+ $condition_string .= "`" . $field . "` IN (" . $placeholders . ")";
+ } else {
+ $new_values[$field] = $value;
+ $condition_string .= "`" . $field . "` = ?";
+ }
+ }
+ $condition_string = " WHERE (" . $condition_string . ")";
+ $condition = $new_values;
}
}
return $condition_string;
}
+ /**
+ * @brief Returns the SQL parameter string built from the provided parameter array
+ *
+ * @param array $params
+ * @return string
+ */
+ public static function buildParameter(array $params = [])
+ {
+ $order_string = '';
+ if (isset($params['order'])) {
+ $order_string = " ORDER BY ";
+ foreach ($params['order'] AS $fields => $order) {
+ if (!is_int($fields)) {
+ $order_string .= "`" . $fields . "` " . ($order ? "DESC" : "ASC") . ", ";
+ } else {
+ $order_string .= "`" . $order . "`, ";
+ }
+ }
+ $order_string = substr($order_string, 0, -2);
+ }
+
+ $limit_string = '';
+ if (isset($params['limit']) && is_int($params['limit'])) {
+ $limit_string = " LIMIT " . $params['limit'];
+ }
+
+ if (isset($params['limit']) && is_array($params['limit'])) {
+ $limit_string = " LIMIT " . intval($params['limit'][0]) . ", " . intval($params['limit'][1]);
+ }
+
+ return $order_string.$limit_string;
+ }
+
/**
* @brief Fills an array with data from a query
*
return $stmt;
}
- $data = array();
+ $data = [];
while ($row = self::fetch($stmt)) {
$data[] = $row;
}
* @return boolean was the close successful?
*/
public static function close($stmt) {
+ $a = get_app();
+
+ $stamp1 = microtime(true);
+
if (!is_object($stmt)) {
return false;
}
switch (self::$driver) {
case 'pdo':
- return $stmt->closeCursor();
+ $ret = $stmt->closeCursor();
+ break;
case 'mysqli':
- $stmt->free_result();
- return $stmt->close();
+ // MySQLi offers both a mysqli_stmt and a mysqli_result class.
+ // We should be careful not to assume the object type of $stmt
+ // because dba::p() has been able to return both types.
+ if ($stmt instanceof mysqli_stmt) {
+ $stmt->free_result();
+ $ret = $stmt->close();
+ } elseif ($stmt instanceof mysqli_result) {
+ $stmt->free();
+ $ret = true;
+ } else {
+ $ret = false;
+ }
+ break;
}
+
+ $a->save_timestamp($stamp1, 'database');
+
+ return $ret;
}
}
projects / friendica.git / blobdiff