424 lines
9.8 KiB
PHP
424 lines
9.8 KiB
PHP
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<?php
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/**
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* PDO MySQL driver
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*
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* This file is part of ADOdb, a Database Abstraction Layer library for PHP.
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*
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* @package ADOdb
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* @link https://adodb.org Project's web site and documentation
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* @link https://github.com/ADOdb/ADOdb Source code and issue tracker
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*
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* The ADOdb Library is dual-licensed, released under both the BSD 3-Clause
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* and the GNU Lesser General Public Licence (LGPL) v2.1 or, at your option,
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* any later version. This means you can use it in proprietary products.
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* See the LICENSE.md file distributed with this source code for details.
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* @license BSD-3-Clause
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* @license LGPL-2.1-or-later
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*
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* @copyright 2000-2013 John Lim
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* @copyright 2014 Damien Regad, Mark Newnham and the ADOdb community
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*/
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class ADODB_pdo_mysql extends ADODB_pdo {
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var $metaTablesSQL = "SELECT
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TABLE_NAME,
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CASE WHEN TABLE_TYPE = 'VIEW' THEN 'V' ELSE 'T' END
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FROM INFORMATION_SCHEMA.TABLES
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WHERE TABLE_SCHEMA=";
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var $metaColumnsSQL = "SHOW COLUMNS FROM `%s`";
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var $sysDate = 'CURDATE()';
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var $sysTimeStamp = 'NOW()';
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var $hasGenID = true;
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var $_genIDSQL = "UPDATE %s SET id=LAST_INSERT_ID(id+1);";
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var $_genSeqSQL = "CREATE TABLE if NOT EXISTS %s (id int not null)";
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var $_genSeqCountSQL = "SELECT count(*) FROM %s";
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var $_genSeq2SQL = "INSERT INTO %s VALUES (%s)";
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var $_dropSeqSQL = "drop table %s";
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var $fmtTimeStamp = "'Y-m-d H:i:s'";
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var $nameQuote = '`';
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function _init($parentDriver)
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{
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$parentDriver->hasTransactions = false;
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#$parentDriver->_bindInputArray = false;
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$parentDriver->hasInsertID = true;
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$parentDriver->_connectionID->setAttribute(PDO::MYSQL_ATTR_USE_BUFFERED_QUERY, true);
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}
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// dayFraction is a day in floating point
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function OffsetDate($dayFraction, $date=false)
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{
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if (!$date) {
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$date = $this->sysDate;
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}
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$fraction = $dayFraction * 24 * 3600;
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return $date . ' + INTERVAL ' . $fraction . ' SECOND';
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// return "from_unixtime(unix_timestamp($date)+$fraction)";
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}
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/**
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* Get a list of indexes on the specified table.
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*
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* @param string $table The name of the table to get indexes for.
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* @param bool $primary (Optional) Whether or not to include the primary key.
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* @param bool $owner (Optional) Unused.
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*
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* @return array|bool An array of the indexes, or false if the query to get the indexes failed.
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*/
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function metaIndexes($table, $primary = false, $owner = false)
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{
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// save old fetch mode
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global $ADODB_FETCH_MODE;
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$false = false;
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$save = $ADODB_FETCH_MODE;
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$ADODB_FETCH_MODE = ADODB_FETCH_NUM;
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if ($this->fetchMode !== FALSE) {
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$savem = $this->setFetchMode(FALSE);
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}
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// get index details
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$rs = $this->execute(sprintf('SHOW INDEXES FROM %s',$table));
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// restore fetchmode
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if (isset($savem)) {
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$this->setFetchMode($savem);
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}
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$ADODB_FETCH_MODE = $save;
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if (!is_object($rs)) {
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return $false;
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}
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$indexes = array ();
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// parse index data into array
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while ($row = $rs->fetchRow()) {
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if ($primary == FALSE AND $row[2] == 'PRIMARY') {
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continue;
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}
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if (!isset($indexes[$row[2]])) {
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$indexes[$row[2]] = array(
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'unique' => ($row[1] == 0),
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'columns' => array()
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);
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}
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$indexes[$row[2]]['columns'][$row[3] - 1] = $row[4];
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}
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// sort columns by order in the index
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foreach ( array_keys ($indexes) as $index )
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{
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ksort ($indexes[$index]['columns']);
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}
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return $indexes;
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}
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function Concat()
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{
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$s = '';
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$arr = func_get_args();
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// suggestion by andrew005#mnogo.ru
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$s = implode(',', $arr);
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if (strlen($s) > 0) {
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return "CONCAT($s)";
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}
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return '';
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}
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function ServerInfo()
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{
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$arr['description'] = ADOConnection::GetOne('select version()');
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$arr['version'] = ADOConnection::_findvers($arr['description']);
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return $arr;
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}
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function MetaTables($ttype=false, $showSchema=false, $mask=false)
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{
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$save = $this->metaTablesSQL;
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if ($showSchema && is_string($showSchema)) {
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$this->metaTablesSQL .= $this->qstr($showSchema);
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} else {
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$this->metaTablesSQL .= 'schema()';
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}
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if ($mask) {
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$mask = $this->qstr($mask);
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$this->metaTablesSQL .= " like $mask";
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}
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$ret = ADOConnection::MetaTables($ttype, $showSchema);
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$this->metaTablesSQL = $save;
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return $ret;
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}
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/**
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* @param bool $auto_commit
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* @return void
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*/
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function SetAutoCommit($auto_commit)
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{
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$this->_connectionID->setAttribute(PDO::ATTR_AUTOCOMMIT, $auto_commit);
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}
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function SetTransactionMode($transaction_mode)
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{
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$this->_transmode = $transaction_mode;
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if (empty($transaction_mode)) {
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$this->Execute('SET TRANSACTION ISOLATION LEVEL REPEATABLE READ');
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return;
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}
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if (!stristr($transaction_mode, 'isolation')) {
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$transaction_mode = 'ISOLATION LEVEL ' . $transaction_mode;
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}
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$this->Execute('SET SESSION TRANSACTION ' . $transaction_mode);
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}
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function MetaColumns($table, $normalize=true)
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{
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$this->_findschema($table, $schema);
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if ($schema) {
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$dbName = $this->database;
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$this->SelectDB($schema);
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}
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global $ADODB_FETCH_MODE;
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$save = $ADODB_FETCH_MODE;
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$ADODB_FETCH_MODE = ADODB_FETCH_NUM;
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if ($this->fetchMode !== false) {
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$savem = $this->SetFetchMode(false);
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}
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$rs = $this->Execute(sprintf($this->metaColumnsSQL, $table));
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if ($schema) {
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$this->SelectDB($dbName);
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}
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if (isset($savem)) {
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$this->SetFetchMode($savem);
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}
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$ADODB_FETCH_MODE = $save;
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if (!is_object($rs)) {
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$false = false;
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return $false;
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}
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$retarr = array();
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while (!$rs->EOF){
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$fld = new ADOFieldObject();
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$fld->name = $rs->fields[0];
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$type = $rs->fields[1];
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// split type into type(length):
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$fld->scale = null;
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if (preg_match('/^(.+)\((\d+),(\d+)/', $type, $query_array)) {
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$fld->type = $query_array[1];
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$fld->max_length = is_numeric($query_array[2]) ? $query_array[2] : -1;
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$fld->scale = is_numeric($query_array[3]) ? $query_array[3] : -1;
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} elseif (preg_match('/^(.+)\((\d+)/', $type, $query_array)) {
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$fld->type = $query_array[1];
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$fld->max_length = is_numeric($query_array[2]) ? $query_array[2] : -1;
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} elseif (preg_match('/^(enum)\((.*)\)$/i', $type, $query_array)) {
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$fld->type = $query_array[1];
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$arr = explode(',', $query_array[2]);
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$fld->enums = $arr;
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$zlen = max(array_map('strlen', $arr)) - 2; // PHP >= 4.0.6
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$fld->max_length = ($zlen > 0) ? $zlen : 1;
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} else {
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$fld->type = $type;
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$fld->max_length = -1;
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}
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$fld->not_null = ($rs->fields[2] != 'YES');
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$fld->primary_key = ($rs->fields[3] == 'PRI');
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$fld->auto_increment = (strpos($rs->fields[5], 'auto_increment') !== false);
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$fld->binary = (strpos($type, 'blob') !== false);
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$fld->unsigned = (strpos($type, 'unsigned') !== false);
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if (!$fld->binary) {
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$d = $rs->fields[4];
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if ($d != '' && $d != 'NULL') {
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$fld->has_default = true;
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$fld->default_value = $d;
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} else {
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$fld->has_default = false;
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}
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}
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if ($save == ADODB_FETCH_NUM) {
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$retarr[] = $fld;
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} else {
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$retarr[strtoupper($fld->name)] = $fld;
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}
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$rs->MoveNext();
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}
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$rs->Close();
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return $retarr;
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}
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// returns true or false
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function SelectDB($dbName)
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{
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$this->database = $dbName;
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$this->databaseName = $dbName; # obsolete, retained for compat with older adodb versions
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$try = $this->Execute('use ' . $dbName);
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return ($try !== false);
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}
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// parameters use PostgreSQL convention, not MySQL
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function SelectLimit($sql, $nrows=-1, $offset=-1, $inputarr=false, $secs=0)
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{
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$nrows = (int) $nrows;
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$offset = (int) $offset;
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$offsetStr =($offset>=0) ? "$offset," : '';
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// jason judge, see PHPLens Issue No: 9220
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if ($nrows < 0) {
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$nrows = '18446744073709551615';
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}
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if ($secs) {
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$rs = $this->CacheExecute($secs, $sql . " LIMIT $offsetStr$nrows", $inputarr);
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} else {
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$rs = $this->Execute($sql . " LIMIT $offsetStr$nrows", $inputarr);
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}
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return $rs;
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}
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function SQLDate($fmt, $col=false)
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{
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if (!$col) {
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$col = $this->sysTimeStamp;
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}
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$s = 'DATE_FORMAT(' . $col . ",'";
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$concat = false;
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$len = strlen($fmt);
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for ($i=0; $i < $len; $i++) {
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$ch = $fmt[$i];
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switch($ch) {
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default:
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if ($ch == '\\') {
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$i++;
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$ch = substr($fmt, $i, 1);
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}
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// FALL THROUGH
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case '-':
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case '/':
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$s .= $ch;
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break;
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case 'Y':
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case 'y':
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$s .= '%Y';
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break;
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case 'M':
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$s .= '%b';
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break;
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case 'm':
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$s .= '%m';
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break;
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case 'D':
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case 'd':
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$s .= '%d';
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break;
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case 'Q':
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case 'q':
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$s .= "'),Quarter($col)";
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if ($len > $i+1) {
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$s .= ",DATE_FORMAT($col,'";
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} else {
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$s .= ",('";
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}
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$concat = true;
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break;
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case 'H':
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$s .= '%H';
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break;
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case 'h':
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$s .= '%I';
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break;
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case 'i':
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$s .= '%i';
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break;
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case 's':
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$s .= '%s';
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break;
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case 'a':
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case 'A':
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$s .= '%p';
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break;
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case 'w':
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$s .= '%w';
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break;
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case 'W':
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$s .= '%U';
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break;
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case 'l':
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$s .= '%W';
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break;
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}
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}
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$s .= "')";
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if ($concat) {
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$s = "CONCAT($s)";
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}
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return $s;
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}
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function GenID($seqname='adodbseq',$startID=1)
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{
|
||
|
|
$getnext = sprintf($this->_genIDSQL,$seqname);
|
||
|
|
$holdtransOK = $this->_transOK; // save the current status
|
||
|
|
$rs = @$this->Execute($getnext);
|
||
|
|
if (!$rs) {
|
||
|
|
if ($holdtransOK) $this->_transOK = true; //if the status was ok before reset
|
||
|
|
$this->Execute(sprintf($this->_genSeqSQL,$seqname));
|
||
|
|
$cnt = $this->GetOne(sprintf($this->_genSeqCountSQL,$seqname));
|
||
|
|
if (!$cnt) $this->Execute(sprintf($this->_genSeq2SQL,$seqname,$startID-1));
|
||
|
|
$rs = $this->Execute($getnext);
|
||
|
|
}
|
||
|
|
|
||
|
|
if ($rs) {
|
||
|
|
$this->genID = $this->_connectionID->lastInsertId($seqname);
|
||
|
|
$rs->Close();
|
||
|
|
} else {
|
||
|
|
$this->genID = 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
return $this->genID;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
function createSequence($seqname='adodbseq',$startID=1)
|
||
|
|
{
|
||
|
|
if (empty($this->_genSeqSQL)) {
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
$ok = $this->Execute(sprintf($this->_genSeqSQL,$seqname,$startID));
|
||
|
|
if (!$ok) {
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
|
||
|
|
return $this->Execute(sprintf($this->_genSeq2SQL,$seqname,$startID-1));
|
||
|
|
}
|
||
|
|
}
|