/
db.inc.php
1242 lines (1036 loc) · 31.9 KB
/
db.inc.php
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<?php
/***************************************************************************
* For license information see doc/license.txt
*
* Unicode Reminder メモ
*
* This module includes all database function necessary to do queries from
* the database.
***************************************************************************/
/***************************************************************************
Overview:
sql_enable_debugger() ... enables Sqldebug if not not already done by config
sql($sql) ... Query SQL and return result
sql_escape($value) ... Escape parameter for SQL-use
sql_escape_backtick($value) ... escape $value for use within backticks
sql_value($sql, $default) ... Query SQL and return first row of first line
sql_fetch_array($rs) ... mysql_fetch_array with charset conversion
sql_fetch_assoc($rs) ... mysql_fetch_assoc with charset conversion
sql_fetch_row($rs) ... mysql_fetch_row with charset conversion
sql_fetch_column($rs) ... fetch column with charset conversion
sql_fetch_assoc_table($rs) ... fetch_assoc for all rows
sql_temp_table($table) ... registers an placeholder for use as temporary
table and drop's temporary tables if
mysql_pconnect is used
sql_drop_temp_table($table) ... unregisters and drops an tmp-table placeholder
sql_free_result($rs) ... mysql_free_result
sql_affected_rows() ... mysql_affected_rows
sql_insert_id() ... mysql_insert_id
sql_num_rows($rs) ... mysql_num_rows
sql_export_recordset($f, $rs) ... export recordset to file
sql_export_table($f, $table) ... export table to file
sql_export_table_to_file($filename, $table)
sql_table_exists ... tests if a table exists
sql_field_exists ... tests if a table and a field in this table exist
sql_field_type ... queries the type of a field (uppercase letters)
sql_index_exists ... tests if a table and an index of this table exist
// slave query functions
sql_slave_exclude() ... do not use slave servers for the current user
until the slaves have replicated to this point
(e.g. after a new cache was hidden)
sql_slave($sql)
sql_value_slave($sql, $default)
sql_temp_table_slave($table)
sql_drop_temp_table_slave($table)
sql_affected_rows_slave()
sql_insert_id_slave()
sql_connect_anyslave()
sql_connect_slave($id)
sqlf_slave($sql)
// for sqldebugger
sqlf($sql) ... sql for framwork functions
sqll($sql) ... sql for business layer functions
sqlf_value($sql, $default) ... sql_value for framwork functions
sqll_value($sql, $default) ... sql_value for business layer functions
// only for internal use ... invoked automatically
sql_connect() ... connect to the database
sql_disconnect() ... disconnect database
sql_disconnect_slave() ... disconnect slave database
sql_error() ... report an error and stop processing
sql_warn($warnmessage) ... report a warning and resume processing
// for maintenance functions
sql_connect_maintenance() ... connect the database with more privileges
sql_dropFunction ... drops stored function
sql_dropProcedure ... drops stored procedure
sql_dropTrigger ... drops stored trigger
***************************************************************************/
$db['connected'] = false;
$db['debug'] = (($opt['debug'] & DEBUG_SQLDEBUGGER) == DEBUG_SQLDEBUGGER);
$db['dblink'] = false;
$db['dblink_slave'] = false;
$db['slave_id'] = -1;
$db['slave_server'] = '';
$db['temptable_initialized'] = false;
$db['temptables'] = array();
$db['temptables_slave'] = array();
$db['mode'] = DB_MODE_USER;
$db['error'] = false;
function sql_enable_debugger()
{
global $opt, $db;
$opt['debug'] |= DEBUG_SQLDEBUGGER;
$db['debug'] = true;
}
/*
sql("SELECT id FROM &tmpdb.table WHERE a=&1 AND &tmpdb.b='&2'", 12345, 'abc');
Important: only use ASCII charecters with ord() < 128 in your queries, otherwise
they will fail when $opt['charset']['mysql'] is not UTF-8.
However, parameters pased with &x or escaped with sql_escape will be
converted from UTF-8 to $opt['charset']['iconv'].
returns: recordset or false
*/
function sql($sql)
{
global $db;
// establish db connection
if ($db['connected'] != true)
sql_connect();
// prepare args
$args = func_get_args();
unset($args[0]);
if (isset($args[1]) && is_array($args[1]))
{
$tmp_args = $args[1];
unset($args);
// correct indizes
$args = array_merge(array(0), $tmp_args);
unset($tmp_args);
unset($args[0]);
}
return sql_internal($db['dblink'], $sql, $args);
}
function sql_slave($sql)
{
global $db;
if ($db['dblink_slave'] === false)
sql_connect_anyslave();
// prepare args
$args = func_get_args();
unset($args[0]);
if (isset($args[1]) && is_array($args[1]))
{
$tmp_args = $args[1];
unset($args);
// correct indizes
$args = array_merge(array(0), $tmp_args);
unset($tmp_args);
unset($args[0]);
}
return sql_internal($db['dblink_slave'], $sql, $args);
}
function sql_internal($dblink, $sql)
{
global $opt, $db, $sqldebugger;
$args = func_get_args();
unset($args[0]);
unset($args[1]);
/* as an option, you can give as second parameter an array
* with all values for the placeholder. The array has to be
* with numeric indizes.
*/
if (isset($args[2]) && is_array($args[2]))
{
$tmp_args = $args[2];
unset($args);
// correct indizes
$args = array_merge(array(0), $tmp_args);
unset($tmp_args);
unset($args[0]);
}
$sqlpos = 0;
$filtered_sql = '';
// replace every &x in $sql with the placeholder or parameter
$nextarg = strpos($sql, '&');
while ($nextarg !== false)
{
// & escaped?
$escapesCount = 0;
while ((($nextarg - $escapesCount - 1) > 0) && (substr($sql, $nextarg - $escapesCount - 1, 1) == '\\')) $escapesCount++;
if (($escapesCount % 2) == 1)
$nextarg++;
else
{
$nextchar = substr($sql, $nextarg + 1, 1);
if (is_numeric($nextchar))
{
$arglength = 0;
$arg = '';
// find next non-digit
while (preg_match('/^[0-9]{1}/', $nextchar) == 1)
{
$arg .= $nextchar;
$arglength++;
$nextchar = substr($sql, $nextarg + $arglength + 1, 1);
}
// ok ... replace
$filtered_sql .= substr($sql, $sqlpos, $nextarg - $sqlpos);
$sqlpos = $nextarg + $arglength;
if (isset($args[$arg]))
{
if (is_numeric($args[$arg]))
$filtered_sql .= $args[$arg];
else
{
if ((substr($sql, $sqlpos - $arglength - 1, 1) == '\'') && (substr($sql, $sqlpos + 1, 1) == '\''))
$filtered_sql .= sql_escape($args[$arg]);
else if ((substr($sql, $sqlpos - $arglength - 1, 1) == '`') && (substr($sql, $sqlpos + 1, 1) == '`'))
$filtered_sql .= sql_escape_backtick($args[$arg]);
else
sql_error($sql);
}
}
else
{
// NULL
if ((substr($sql, $sqlpos - $arglength - 1, 1) == '\'') && (substr($sql, $sqlpos + 1, 1) == '\''))
{
// strip apostroph and insert NULL
$filtered_sql = substr($filtered_sql, 0, strlen($filtered_sql) - 1);
$filtered_sql .= 'NULL';
$sqlpos++;
}
else
$filtered_sql .= 'NULL';
}
$sqlpos++;
}
else
{
$arglength = 0;
$arg = '';
// find next non-alphanumeric char
// (added '_' - it is used in temptable names - following 2013/07/18)
while (preg_match('/^[a-zA-Z0-9_]{1}/', $nextchar) == 1)
{
$arg .= $nextchar;
$arglength++;
$nextchar = substr($sql, $nextarg + $arglength + 1, 1);
}
// ok ... replace
$filtered_sql .= substr($sql, $sqlpos, $nextarg - $sqlpos);
if (isset($opt['db']['placeholder'][$arg]))
{
if (substr($sql, $nextarg - 1, 1) != '`')
$filtered_sql .= '`';
$filtered_sql .= sql_escape_backtick($opt['db']['placeholder'][$arg]);
if (substr($sql, $nextarg + $arglength + 1, 1) != '`')
$filtered_sql .= '`';
}
else if (isset($db['temptables'][$arg]))
{
if (substr($sql, $nextarg - 1, 1) != '`')
$filtered_sql .= '`';
$filtered_sql .= sql_escape_backtick($opt['db']['placeholder']['tmpdb']) . '`.`' . sql_escape_backtick($db['temptables'][$arg]);
if (substr($sql, $nextarg + $arglength + 1, 1) != '`')
$filtered_sql .= '`';
}
else
sql_error($sql);
$sqlpos = $nextarg + $arglength + 1;
}
}
$nextarg = strpos($sql, '&', $nextarg + 1);
}
// append the rest
$filtered_sql .= substr($sql, $sqlpos);
// strip escapes of &
$nextarg = strpos($filtered_sql, '\&');
while ($nextarg !== false)
{
$escapesCount = 0;
while ((($nextarg - $escapesCount - 1) > 0) && (substr($filtered_sql, $nextarg - $escapesCount - 1, 1) == '\\')) $escapesCount++;
if (($escapesCount % 2) == 0)
{
// strip escapes of &
$filtered_sql = substr($filtered_sql, 0, $nextarg) . '&' . substr($filtered_sql, $nextarg + 2);
$nextarg--;
}
$nextarg = strpos($filtered_sql, '\&', $nextarg + 2);
}
//
// ok ... filtered_sql is ready for usage
//
/* todo:
- errorlogging
- LIMIT
- block DROP/DELETE
*/
if (isset($db['debug']) && ($db['debug'] == true))
{
require_once($opt['rootpath'] . 'lib2/sqldebugger.class.php');
$result = $sqldebugger->execute($filtered_sql, $dblink, ($dblink===$db['dblink_slave']), $db['slave_server']);
if ($result === false)
{
sql_error($filtered_sql);
}
}
else
{
// measure time
if ($opt['db']['warn']['time'] > 0)
{
require_once($opt['rootpath'] . 'lib2/bench.inc.php');
$cSqlExecution = new Cbench;
$cSqlExecution->start();
}
$result = @mysql_query($filtered_sql, $dblink);
if ($result === false)
{
sql_error($filtered_sql);
}
if ($opt['db']['warn']['time'] > 0)
{
$cSqlExecution->stop();
if ($cSqlExecution->diff() > $opt['db']['warn']['time'])
{
$ua = isset($_SERVER['HTTP_USER_AGENT']) ? "\r\n" . $_SERVER['HTTP_USER_AGENT'] : "";
sql_warn("execution took " . $cSqlExecution->diff() . " seconds" . $ua);
}
}
}
return $result;
}
function sqlf($sql)
{
global $db;
$nOldMode = $db['mode'];
$db['mode'] = DB_MODE_FRAMEWORK;
$args = func_get_args();
unset($args[0]);
$result = sql($sql, $args);
$db['mode'] = $nOldMode;
return $result;
}
function sqlf_slave($sql)
{
global $db;
$nOldMode = $db['mode'];
$db['mode'] = DB_MODE_FRAMEWORK;
$args = func_get_args();
unset($args[0]);
$result = sql_slave($sql, $args);
$db['mode'] = $nOldMode;
return $result;
}
function sqll($sql)
{
global $db;
$nOldMode = $db['mode'];
$db['mode'] = DB_MODE_BUSINESSLAYER;
$args = func_get_args();
unset($args[0]);
$result = sql($sql, $args);
$db['mode'] = $nOldMode;
return $result;
}
function sqlf_value($sql, $default)
{
global $db;
$nOldMode = $db['mode'];
$db['mode'] = DB_MODE_FRAMEWORK;
$args = func_get_args();
unset($args[0]);
unset($args[1]);
$result = sql_value($sql, $default, $args);
$db['mode'] = $nOldMode;
return $result;
}
function sqll_value($sql, $default)
{
global $db;
$nOldMode = $db['mode'];
$db['mode'] = DB_MODE_BUSINESSLAYER;
$args = func_get_args();
unset($args[0]);
unset($args[1]);
$result = sql_value($sql, $default, $args);
$db['mode'] = $nOldMode;
return $result;
}
function sql_escape($value)
{
global $db, $opt;
// convert the charset of $value
if ($opt['charset']['iconv'] != 'UTF-8')
$value = iconv('UTF-8', $opt['charset']['iconv'], $value);
// establish db connection
if ($db['connected'] != true) sql_connect();
$value = mysql_real_escape_string($value, $db['dblink']);
$value = str_replace('&', '\&', $value);
return $value;
}
function sql_escape_backtick($value)
{
$value = sql_escape($value);
$value = str_replace('`', '``', $value);
return $value;
}
function sql_value($sql, $default)
{
$args = func_get_args();
unset($args[0]);
unset($args[1]);
if (isset($args[2]) && is_array($args[2]))
{
$tmp_args = $args[2];
unset($args);
// correct indizes
$args = array_merge(array(0), $tmp_args);
unset($tmp_args);
unset($args[0]);
}
return sql_value_internal(false, $sql, $default, $args);
}
function sql_value_slave($sql, $default)
{
$args = func_get_args();
unset($args[0]);
unset($args[1]);
if (isset($args[2]) && is_array($args[2]))
{
$tmp_args = $args[2];
unset($args);
// correct indizes
$args = array_merge(array(0), $tmp_args);
unset($tmp_args);
unset($args[0]);
}
return sql_value_internal(true, $sql, $default, $args);
}
function sql_value_internal($bQuerySlave, $sql, $default)
{
$args = func_get_args();
unset($args[0]);
unset($args[1]);
unset($args[2]);
/* as an option, you can give as third parameter an array
* with all values for the placeholder. The array has to be
* with numeric indizes.
*/
if (isset($args[3]) && is_array($args[3]))
{
$tmp_args = $args[3];
unset($args);
// correct indizes
$args = array_merge(array(0), $tmp_args);
unset($tmp_args);
unset($args[0]);
}
if ($bQuerySlave == true)
$rs = sql_slave($sql, $args);
else
$rs = sql($sql, $args);
$r = sql_fetch_row($rs);
sql_free_result($rs);
if ($r)
{
if ($r[0] == null)
return $default;
else
return $r[0];
}
else
return $default;
}
/*
Replacement for builtin MySQL functions
(includes database charset conversion)
*/
function sql_fetch_array($rs)
{
global $opt;
$retval = mysql_fetch_array($rs);
if (is_array($retval))
if ($opt['charset']['iconv'] != 'UTF-8')
foreach ($retval AS $k => $v)
$retval[$k] = iconv($opt['charset']['iconv'], 'UTF-8', $v);
return $retval;
}
function sql_fetch_assoc($rs)
{
global $opt;
$retval = mysql_fetch_assoc($rs);
if (is_array($retval))
if ($opt['charset']['iconv'] != 'UTF-8')
foreach ($retval AS $k => $v)
$retval[$k] = iconv($opt['charset']['iconv'], 'UTF-8', $v);
return $retval;
}
function sql_fetch_assoc_table($rs)
{
$result = array();
while ($r = sql_fetch_assoc($rs))
$result[] = $r;
sql_free_result($rs);
return $result;
}
// returns false if no more matching rows exist
function sql_fetch_row($rs)
{
global $opt;
$retval = mysql_fetch_row($rs);
if (is_array($retval))
if ($opt['charset']['iconv'] != 'UTF-8')
foreach ($retval AS $k => $v)
$retval[$k] = iconv($opt['charset']['iconv'], 'UTF-8', $v);
return $retval;
}
function sql_fetch_column($rs)
{
global $opt;
$result = array();
while ($r = mysql_fetch_row($rs))
if ($opt['charset']['iconv'] != 'UTF-8')
$result[] = iconv($opt['charset']['iconv'], 'UTF-8', $r[0]);
else
$result[] = $r[0];
mysql_free_result($rs);
return $result;
}
function sql_affected_rows()
{
global $db;
return mysql_affected_rows($db['dblink']);
}
function sql_affected_rows_slave()
{
global $db;
return mysql_affected_rows($db['dblink_slave']);
}
function sql_free_result($rs)
{
return mysql_free_result($rs);
}
function sql_insert_id()
{
global $db;
return mysql_insert_id($db['dblink']);
}
function sql_insert_id_slave()
{
global $db;
return mysql_insert_id($db['dblink_slave']);
}
function sql_num_rows($rs)
{
return mysql_num_rows($rs);
}
function sql_temp_table($table)
{
global $db, $opt;
if ($db['connected'] == false)
sql_connect();
if ($opt['db']['pconnect'] == true)
{
if ($db['temptable_initialized'] == false)
{
$rs = sqlf("SELECT `threadid`, `name` FROM &db.`sys_temptables` WHERE `threadid`='&1'", mysql_thread_id($db['dblink']));
while ($r = sql_fetch_assoc($rs))
{
sqlf("DROP TEMPORARY TABLE IF EXISTS &tmpdb.`&1`", $r['name']);
}
sql_free_result($rs);
sqlf("DELETE FROM &db.`sys_temptables` WHERE `threadid`='&1'", mysql_thread_id($db['dblink']));
$db['temptable_initialized'] = true;
}
sqlf("INSERT IGNORE INTO &db.`sys_temptables` (`threadid`, `name`) VALUES ('&1', '&2')", mysql_thread_id($db['dblink']), $table);
}
$db['temptables'][$table] = $table;
}
function sql_temp_table_slave($table)
{
global $db, $opt;
if ($db['dblink_slave'] === false)
sql_connect_anyslave();
if ($opt['db']['pconnect'] == true)
sqlf_slave("INSERT IGNORE INTO &db.`sys_temptables` (`threadid`, `name`) VALUES ('&1', '&2')", mysql_thread_id($db['dblink_slave']), $table);
$db['temptables'][$table] = $table;
$db['temptables_slave'][$table] = $table;
}
function sql_drop_temp_table($table)
{
global $db, $opt;
sqlf("DROP TEMPORARY TABLE IF EXISTS &tmpdb.`&1`", $table);
if ($opt['db']['pconnect'] == true)
sqlf("DELETE FROM &db.`sys_temptables` WHERE `threadid`='&1' AND `name`='&2'", mysql_thread_id($db['dblink']), $table);
unset($db['temptables'][$table]);
}
function sql_rename_temp_table($table, $newname)
{
global $db, $opt;
if ($opt['db']['pconnect'] == true)
sqlf("UPDATE &db.`sys_temptables` SET `name`='&3' WHERE `threadid`='&1' AND `name`='&2'", mysql_thread_id($db['dblink']), $table, $newname);
sqlf('ALTER TABLE &tmpdb.`&1` RENAME &tmpdb.`&2`', $table, $newname);
unset($db['temptables'][$table]);
$db['temptables'][$newname] = $newname;
}
function sql_drop_temp_table_slave($table)
{
global $db, $opt;
sqlf_slave("DROP TEMPORARY TABLE IF EXISTS &tmpdb.`&1`", $table);
if ($opt['db']['pconnect'] == true)
sqlf_slave("DELETE FROM &db.`sys_temptables` WHERE `threadid`='&1' AND `name`='&2'", mysql_thread_id($db['dblink']), $table);
unset($db['temptables'][$table]);
unset($db['temptables_slave'][$table]);
}
function sql_rename_temp_table_slave($table, $newname)
{
global $db, $opt;
if ($opt['db']['pconnect'] == true)
sqlf("UPDATE &db.`sys_temptables` SET `name`='&3' WHERE `threadid`='&1' AND `name`='&2'", mysql_thread_id($db['dblink']), $table, $newname);
sqlf_slave('ALTER TABLE &tmpdb.`&1` RENAME &tmpdb.`&2`', $table, $newname);
unset($db['temptables'][$table]);
unset($db['temptables_slave'][$table]);
$db['temptables'][$newname] = $newname;
$db['temptables_slave'][$newname] = $newname;
}
//database handling
function sql_connect($username=null, $password=null, $raiseError=true)
{
global $opt, $db;
if ($username == null)
$username = $opt['db']['username'];
if ($password == null)
$password = $opt['db']['password'];
//connect to the database by the given method - no php error reporting!
if ($opt['db']['pconnect'] == true)
$db['dblink'] = @mysql_pconnect($opt['db']['servername'], $username, $password);
else
$db['dblink'] = @mysql_connect($opt['db']['servername'], $username, $password);
if ($db['dblink'] !== false)
{
mysql_query("SET NAMES '" . mysql_real_escape_string($opt['charset']['mysql'], $db['dblink']) . "'", $db['dblink']);
//database connection established ... set the used database
if (@mysql_select_db($opt['db']['placeholder']['db'], $db['dblink']) == false)
{
//error while setting the database ... disconnect
sql_disconnect();
$db['dblink'] = false;
}
}
// output the error form if there was an error
if ($db['dblink'] === false)
{
if ($raiseError == true)
sql_error();
}
else
$db['connected'] = true;
}
function sql_slave_exclude()
{
global $login;
if ($login->userid == 0)
return;
sql("INSERT INTO `sys_repl_exclude` (`user_id`, `datExclude`) VALUES ('&1', NOW())
ON DUPLICATE KEY UPDATE `datExclude`=NOW()", $login->userid);
}
function sql_connect_anyslave()
{
global $db, $opt, $login;
if ($db['dblink_slave'] !== false)
return;
$nMaxTimeDiff = $opt['db']['slave']['max_behind'];
if ($login->userid != 0)
{
$nMaxTimeDiff = sql_value("SELECT TIMESTAMP(NOW())-TIMESTAMP(`datExclude`) FROM `sys_repl_exclude` WHERE `user_id`='&1'", $opt['db']['slave']['max_behind'], $login->userid);
if ($nMaxTimeDiff > $opt['db']['slave']['max_behind'])
$nMaxTimeDiff = $opt['db']['slave']['max_behind'];
}
$id = sqlf_value("SELECT `id`, `weight`*RAND() AS `w` FROM `sys_repl_slaves` WHERE `active`=1 AND `online`=1 AND (TIMESTAMP(NOW())-TIMESTAMP(`last_check`)+`time_diff`<'&1') ORDER BY `w` DESC LIMIT 1", -1, $nMaxTimeDiff);
sql_connect_slave($id);
}
function sql_connect_master_as_slave()
{
global $db;
// the right slave is connected
if ($db['dblink_slave'] !== false)
{
sql_error();
return;
}
// use existing master connection
$db['slave_id'] = -1;
$db['dblink_slave'] = $db['dblink'];
$db['slave_server'] = 'master';
}
function sql_connect_slave($id)
{
global $opt, $db;
if ($id == -1)
{
sql_connect_master_as_slave();
return;
}
// the right slave is connected
if ($db['dblink_slave'] !== false)
{
// TODO: disconnect if other slave is connected
if ($db['slave_id'] != $id)
sql_error();
return;
}
$db['slave_id'] = $id;
$slave = $opt['db']['slaves'][$id];
// for display in SQL debugger
$db['slave_server'] = $slave['server'];
if ($opt['db']['pconnect'] == true)
$db['dblink_slave'] = @mysql_pconnect($slave['server'], $slave['username'], $slave['password']);
else
$db['dblink_slave'] = @mysql_connect($slave['server'], $slave['username'], $slave['password']);
if ($db['dblink_slave'] !== false)
{
if (mysql_select_db($opt['db']['placeholder']['db'], $db['dblink_slave']) == false)
sql_error();
mysql_query("SET NAMES '" . mysql_real_escape_string($opt['charset']['mysql'], $db['dblink_slave']) . "'", $db['dblink_slave']);
// initialize temp tables on slave server
$rs = sqlf_slave("SELECT `threadid`, `name` FROM `sys_temptables` WHERE `threadid`='&1'", mysql_thread_id($db['dblink_slave']));
while ($r = sql_fetch_assoc($rs))
{
sqlf_slave("DROP TEMPORARY TABLE IF EXISTS &tmpdb.`&1`", $r['name']);
}
sql_free_result($rs);
sqlf_slave("DELETE FROM &db.`sys_temptables` WHERE `threadid`='&1'", mysql_thread_id($db['dblink_slave']));
}
else
sql_error();
}
function sql_connect_maintenance()
{
global $tpl, $db, $opt;
sql_connect($opt['db']['maintenance_user'], $opt['db']['maintenance_password'], false);
if ($db['dblink'] === false)
{
sql_disconnect();
sql_connect();
if ($db['connected'] == false)
$tpl->error(ERROR_DB_COULD_NOT_RECONNECT);
return false;
}
return true;
}
//disconnect the databse
function sql_disconnect()
{
global $opt, $db;
sql_disconnect_slave();
if (($opt['db']['pconnect'] == true) && ($db['dblink'] !== false))
{
if (count($db['temptables']) > 0)
{
foreach ($db['temptables'] AS $table)
sqlf("DROP TEMPORARY TABLE IF EXISTS &tmpdb.`&1`", $table);
sqlf("DELETE FROM &db.`sys_temptables` WHERE `threadid`='&1'", mysql_thread_id($db['dblink']));
$db['temptables'] = array();
$db['temptables_slave'] = array();
}
}
if ($db['dblink'] === $db['dblink_slave'])
$db['dblink_slave'] = false;
//is connected and no persistent connect used?
if (($opt['db']['pconnect'] == false) && ($db['dblink'] !== false))
{
mysql_close($db['dblink']);
$db['dblink'] = false;
$db['connected'] = false;
}
}
//disconnect the databse
function sql_disconnect_slave()
{
global $opt, $db;
if ($db['dblink_slave'] === false)
return;
if (($opt['db']['pconnect'] == true) && ($db['dblink'] !== false))
{
if (count($db['temptables']) > 0)
{
foreach ($db['temptables'] AS $k => $table)
{
if (isset($db['temptables_slave'][$table]))
{
sqlf_slave("DROP TEMPORARY TABLE IF EXISTS &tmpdb.`&1`", $table);
unset($db['temptables_slave'][$table]);
unset($db['temptables'][$k]);
}
}
if (count($db['temptables_slave']) > 0)
sqlf_slave("DELETE FROM &db.`sys_temptables` WHERE `threadid`='&1'", mysql_thread_id($db['dblink_slave']));
$db['temptables_slave'] = array();
}
}
if ($db['dblink'] === $db['dblink_slave'])
{
$db['dblink_slave'] = false;
return;
}
//is connected and no persistent connect used?
if (($opt['db']['pconnect'] == false) && ($db['dblink_slave'] !== false))
mysql_close($db['dblink_slave']);
$db['dblink_slave'] = false;
}
function sql_error($sqlstatement="")
{
global $tpl, $opt, $db;
global $bSmartyNoTranslate;
$errno = mysql_errno();
$error = mysql_error();
if ($sqlstatement != "")
$error .= "\n\nSQL statement: " . $sqlstatement;
if ($db['error'] == true)
{
// datbase error recursion, because another error occured while trying to
// build the error template (e.g. because connection was lost, or an error mail
// could not load translations from database)
if ($opt['db']['error']['display'] == true)
$errmsg = 'MySQL error recursion (' . $errno . '): ' . $error;
else
$errmsg = "";
$errtitle = "Datenbankfehler";
require("html/error.php");
exit;
}
$db['error'] = true;
if ($db['connected'] == false)
$bSmartyNoTranslate = true;
if ($opt['db']['error']['mail'] != '')
{
if (admin_errormail($opt['db']['error']['mail'],
$opt['db']['error']['subject'],
str_replace("\n","\r\n",$error) . "\n" . print_r(debug_backtrace(), true),
"From: ".$opt['mail']['from']))
{
require_once($opt['rootpath'] . 'lib2/mail.class.php');
$mail = new mail();
$mail->subject = $opt['db']['error']['subject'];
$mail->to = $opt['db']['error']['mail'];
$mail->name = 'sql_error';
$mail->assign('errno', $errno);
$mail->assign('error', str_replace("\n","\r\n",$error));
$mail->assign('trace', print_r(debug_backtrace(), true));
$mail->send();
$mail = null;
}
}
if ($opt['gui'] == GUI_HTML)
{
if (isset($tpl))
{
if ($opt['db']['error']['display'] == true)
$tpl->error('MySQL error (' . $errno . '): ' . $error);
else
$tpl->error('A database command could not be performed.');
}