.
***********************************************************************/
define('DB_DUPLICATE_ERROR', 1062);
define('SQL_MODE', 'STRICT_ALL_TABLES'); // prevents SQL injection with silent field content truncation
$db_last_inserted_id = 0;
function set_global_connection($company=-1)
{
global $db, $path_to_root, $db_connections, $SysPrefs;
include ($path_to_root . "/config_db.php");
if ($company == -1)
$company = user_company();
cancel_transaction(); // cancel all aborted transactions (if any)
$_SESSION["wa_current_user"]->cur_con = $company;
$connection = $db_connections[$company];
$db = mysqli_connect($connection["host"], $connection["dbuser"], $connection["dbpassword"], "",
!empty($connection["port"]) ? $connection["port"] : 3306); // default port in mysql is 3306
mysqli_select_db($db, $connection["dbname"]);
///// From mysqli release 5.6.6 the sql_mode is no longer empty as it was prior to
///// this release. Just for safety we make it empty for all 5.6 release and higher.
///// This non empty sql_mode values can interphere with FA, so all is set empty during
///// our sessions.
///// We are, however, investigating the existing code to be compatible in the future.
db_query("SET sql_mode = '".SQL_MODE."'");
/////
$SysPrefs->refresh();
return $db;
}
//DB wrapper functions to change only once for whole application
function db_query($sql, $err_msg=null)
{
global $db, $SysPrefs, $sql_queries, $Ajax, $db_connections, $db_last_inserted_id;
// set current db prefix
$comp = isset($_SESSION["wa_current_user"]->cur_con) ? $_SESSION["wa_current_user"]->cur_con : 0;
$cur_prefix = @$db_connections[$comp]['tbpref'];
$sql = str_replace(TB_PREF, $cur_prefix, $sql);
if ($SysPrefs->show_sql)
{
$Ajax->activate('footer_debug');
$sql_queries .= "
$sql
\n
";
}
db_profile(); // mysql profiling
$retry = MAX_DEADLOCK_RETRY;
do {
$result = mysqli_query($db, $sql);
if (mysqli_errno($db) == 1213) { // deadlock detected
sleep(1); $retry--;
} else
$retry = 0;
} while ($retry);
db_profile($sql);
if($SysPrefs->sql_trail) {
$db_last_inserted_id = mysqli_insert_id($db); // preserve in case trail insert is done
if ($SysPrefs->select_trail || (strstr($sql, 'SELECT') === false)) {
mysqli_query($db, "INSERT INTO ".$cur_prefix."sql_trail
(`sql`, `result`, `msg`)
VALUES(".db_escape($sql).",".($result ? 1 : 0).",
".db_escape($err_msg).")");
}
}
if ($err_msg != null || $SysPrefs->go_debug) {
$exit = $err_msg != null;
if (function_exists('xdebug_call_file'))
$err_msg = '
At file '.xdebug_call_file().':'.xdebug_call_line().':
'.$err_msg;
check_db_error($err_msg, $sql, $exit);
}
return $result;
}
function db_fetch_row($result)
{
$ret = mysqli_fetch_row($result);
return ($ret === null ? false : $ret);
}
function db_fetch_assoc($result)
{
$ret = mysqli_fetch_assoc($result);
return ($ret === null ? false : $ret);
}
function db_fetch($result)
{
$ret = mysqli_fetch_array($result);
return ($ret === null ? false : $ret);
}
function db_seek(&$result,$record)
{
return mysqli_data_seek($result, $record);
}
function db_free_result($result)
{
if ($result)
mysqli_free_result($result);
}
function db_num_rows($result)
{
return mysqli_num_rows($result);
}
function db_num_fields($result)
{
return mysqli_num_fields($result);
}
function db_escape($value = "", $nullify = false)
{
global $db;
$value = @html_entity_decode($value, ENT_QUOTES, $_SESSION['language']->encoding=='iso-8859-2' ? 'ISO-8859-1' : $_SESSION['language']->encoding);
$value = html_specials_encode($value);
//reset default if second parameter is skipped
$nullify = ($nullify === null) ? (false) : ($nullify);
//check for null/unset/empty strings
if ((!isset($value)) || (is_null($value)) || ($value === "")) {
$value = ($nullify) ? ("NULL") : ("''");
} else {
if (is_string($value)) {
$value = "'" . mysqli_real_escape_string($db, $value) . "'";
//value is a string and should be quoted;
} else if (!is_numeric($value)) {
//value is not a string nor numeric
display_error("ERROR: incorrect data type send to sql query");
echo '
';
exit();
}
}
return $value;
}
function db_error_no()
{
global $db;
return mysqli_errno($db);
}
function db_error_msg($conn)
{
return mysqli_error($conn);
}
function db_insert_id()
{
global $db_last_inserted_id, $SysPrefs, $db;
return $SysPrefs->sql_trail ? $db_last_inserted_id : mysqli_insert_id($db);
}
function db_num_affected_rows()
{
global $db;
return mysqli_affected_rows($db);
}
function db_field_name($result, $n)
{
$fieldinfo = mysqli_fetch_field_direct($result, $n);
return $fieldinfo->name;
}
function db_set_collation($db, $fa_collation)
{
return mysqli_query($db, "ALTER DATABASE COLLATE ".get_mysql_collation($fa_collation));
}
/*
Create database for FA company. If database already exists,
just set collation to be sure nothing weird will happen later.
*/
function db_create_db($connection)
{
global $db;
$db = mysqli_connect($connection["host"], $connection["dbuser"], $connection["dbpassword"], "",
!empty($connection["port"]) ? $connection["port"] : 3306); // default port in mysql is 3306
if (!mysqli_select_db($db, $connection["dbname"]))
{
$sql = "CREATE DATABASE IF NOT EXISTS `" . $connection["dbname"] . "`"
. " DEFAULT COLLATE '" . get_mysql_collation($connection["collation"]) . "'";
if (!mysqli_query($db, $sql) || !mysqli_select_db($db, $connection["dbname"]))
return 0;
} else {
if (!db_set_collation($db, $connection["collation"]))
{
return 0;
}
}
return $db;
}
function db_drop_db($connection)
{
if ($connection["tbpref"] == "")
{
global $db;
$sql = "DROP DATABASE IF EXISTS " . $connection["dbname"] . "";
return mysqli_query($db, $sql);
}
else
{
$res = db_query("show table status");
$all_tables = array();
while($row = db_fetch($res))
$all_tables[] = $row;
// get table structures
foreach ($all_tables as $table)
{
if (strpos($table['Name'], $connection["tbpref"]) === 0)
db_query("DROP TABLE `".$table['Name'] . "`");
}
//deleting the tables, how??
return true;
}
}
function db_close($dbase = null)
{
global $db;
if (!$dbase)
$dbase = $db;
return mysqli_close($dbase);
}
function db_extension_exists()
{
return function_exists('mysqli_connect');
}
function db_escape_function($string)
{
global $db;
return (mysqli_real_escape_string($db, $string));
}
/*
Set mysql client encoding.
Default is is encoding used by default language.
*/
function db_set_encoding($ui_encoding=null)
{
global $db, $dflt_lang, $installed_languages;
if (!isset($ui_encoding))
{
$lang = array_search_value($dflt_lang, $installed_languages, 'code');
$ui_encoding = strtoupper($lang['encoding']);
}
if ($mysql_enc = get_mysql_encoding_name($ui_encoding))
mysqli_set_charset($db, $mysql_enc);
}
function db_get_charset($db)
{
return mysqli_character_set_name($db);
}
function db_set_charset($db, $charset)
{
global $db;
return mysqli_set_charset($db, $charset);
}