cakephp2-php8/cake/libs/model/datasources/dbo/dbo_mysql.php
phpnut 784ee985b5 Adding fix for Ticket #2363
Removed use of:
mysql_insert_id($this->connection);
mysqli_insert_id($this->connection);

git-svn-id: https://svn.cakephp.org/repo/branches/1.2.x.x@4810 3807eeeb-6ff5-0310-8944-8be069107fe0
2007-04-07 01:42:12 +00:00

568 lines
15 KiB
PHP

<?php
/* SVN FILE: $Id$ */
/**
* MySQL layer for DBO
*
* Long description for file
*
* PHP versions 4 and 5
*
* CakePHP(tm) : Rapid Development Framework <http://www.cakephp.org/>
* Copyright 2005-2007, Cake Software Foundation, Inc.
* 1785 E. Sahara Avenue, Suite 490-204
* Las Vegas, Nevada 89104
*
* Licensed under The MIT License
* Redistributions of files must retain the above copyright notice.
*
* @filesource
* @copyright Copyright 2005-2007, Cake Software Foundation, Inc.
* @link http://www.cakefoundation.org/projects/info/cakephp CakePHP(tm) Project
* @package cake
* @subpackage cake.cake.libs.model.datasources.dbo
* @since CakePHP(tm) v 0.10.5.1790
* @version $Revision$
* @modifiedby $LastChangedBy$
* @lastmodified $Date$
* @license http://www.opensource.org/licenses/mit-license.php The MIT License
*/
/**
* Short description for class.
*
* Long description for class
*
* @package cake
* @subpackage cake.cake.libs.model.datasources.dbo
*/
class DboMysql extends DboSource {
/**
* Enter description here...
*
* @var unknown_type
*/
var $description = "MySQL DBO Driver";
/**
* Enter description here...
*
* @var unknown_type
*/
var $startQuote = "`";
/**
* Enter description here...
*
* @var unknown_type
*/
var $endQuote = "`";
/**
* Base configuration settings for MySQL driver
*
* @var array
*/
var $_baseConfig = array(
'persistent' => true,
'host' => 'localhost',
'login' => 'root',
'password' => '',
'database' => 'cake',
'port' => '3306',
'connect' => 'mysql_pconnect'
);
/**
* MySQL column definition
*
* @var array
*/
var $columns = array(
'primary_key' => array('name' => 'int(11) DEFAULT NULL auto_increment'),
'string' => array('name' => 'varchar', 'limit' => '255'),
'text' => array('name' => 'text'),
'integer' => array('name' => 'int', 'limit' => '11', 'formatter' => 'intval'),
'float' => array('name' => 'float', 'formatter' => 'floatval'),
'datetime' => array('name' => 'datetime', 'format' => 'Y-m-d H:i:s', 'formatter' => 'date'),
'timestamp' => array('name' => 'timestamp', 'format' => 'Y-m-d H:i:s', 'formatter' => 'date'),
'time' => array('name' => 'time', 'format' => 'H:i:s', 'formatter' => 'date'),
'date' => array('name' => 'date', 'format' => 'Y-m-d', 'formatter' => 'date'),
'binary' => array('name' => 'blob'),
'boolean' => array('name' => 'tinyint', 'limit' => '1')
);
/**
* Connects to the database using options in the given configuration array.
*
* @return boolean True if the database could be connected, else false
*/
function connect() {
$config = $this->config;
$connect = $config['connect'];
$this->connected = false;
if (!$config['persistent']) {
$this->connection = mysql_connect($config['host'] . ':' . $config['port'], $config['login'], $config['password'], true);
} else {
$this->connection = $connect($config['host'], $config['login'], $config['password']);
}
if (mysql_select_db($config['database'], $this->connection)) {
$this->connected = true;
}
if (isset($config['encoding']) && !empty($config['encoding'])) {
$this->setEncoding($config['encoding']);
}
return $this->connected;
}
/**
* Disconnects from database.
*
* @return boolean True if the database could be disconnected, else false
*/
function disconnect() {
@mysql_free_result($this->results);
$this->connected = !@mysql_close($this->connection);
return !$this->connected;
}
/**
* Executes given SQL statement.
*
* @param string $sql SQL statement
* @return resource Result resource identifier
* @access protected
*/
function _execute($sql) {
return mysql_query($sql, $this->connection);
}
/**
* Returns an array of sources (tables) in the database.
*
* @return array Array of tablenames in the database
*/
function listSources() {
$cache = parent::listSources();
if ($cache != null) {
return $cache;
}
$tables = array();
$result = mysql_list_tables($this->config['database'], $this->connection);
if ($result) {
while ($line = mysql_fetch_array($result)) {
$tables[] = $line[0];
}
}
if (empty($tables)) {
$result = $this->query('SHOW TABLES');
$key1 = $key2 = null;
if ($result) {
foreach ($result as $item) {
if (empty($key1)) {
$key1 = key($item);
$key2 = key($item[$key1]);
}
$tables[] = $item[$key1][$key2];
}
}
}
parent::listSources($tables);
return $tables;
}
/**
* Returns an array of the fields in given table name.
*
* @param string $tableName Name of database table to inspect
* @return array Fields in table. Keys are name and type
*/
function describe(&$model) {
$cache = parent::describe($model);
if ($cache != null) {
return $cache;
}
$fields = false;
$cols = $this->query('DESC ' . $this->fullTableName($model));
foreach ($cols as $column) {
$colKey = array_keys($column);
if (isset($column[$colKey[0]]) && !isset($column[0])) {
$column[0] = $column[$colKey[0]];
}
if (isset($column[0])) {
$fields[] = array(
'name' => $column[0]['Field'],
'type' => $this->column($column[0]['Type']),
'null' => ($column[0]['Null'] == 'YES' ? true : false),
'default' => $column[0]['Default'],
'length' => $this->length($column[0]['Type'])
);
}
}
$this->__cacheDescription($this->fullTableName($model, false), $fields);
return $fields;
}
/**
* Returns a quoted and escaped string of $data for use in an SQL statement.
*
* @param string $data String to be prepared for use in an SQL statement
* @param string $column The column into which this data will be inserted
* @param boolean $safe Whether or not numeric data should be handled automagically if no column data is provided
* @return string Quoted and escaped data
*/
function value($data, $column = null, $safe = false) {
$parent = parent::value($data, $column, $safe);
if ($parent != null) {
return $parent;
}
if ($data === null) {
return 'NULL';
}
if($data === '') {
return "''";
}
switch ($column) {
case 'boolean':
$data = $this->boolean((bool)$data);
break;
case 'integer' :
case 'float' :
case null :
if(is_numeric($data)) {
break;
}
default:
$data = "'" . mysql_real_escape_string($data, $this->connection) . "'";
break;
}
return $data;
}
/**
* Begin a transaction
*
* @param unknown_type $model
* @return boolean True on success, false on fail
* (i.e. if the database/model does not support transactions).
*/
function begin(&$model) {
if (parent::begin($model)) {
if ($this->execute('START TRANSACTION')) {
$this->_transactionStarted = true;
return true;
}
}
return false;
}
/**
* Commit a transaction
*
* @param unknown_type $model
* @return boolean True on success, false on fail
* (i.e. if the database/model does not support transactions,
* or a transaction has not started).
*/
function commit(&$model) {
if (parent::commit($model)) {
$this->_transactionStarted = false;
return $this->execute('COMMIT');
}
return false;
}
/**
* Rollback a transaction
*
* @param unknown_type $model
* @return boolean True on success, false on fail
* (i.e. if the database/model does not support transactions,
* or a transaction has not started).
*/
function rollback(&$model) {
if (parent::rollback($model)) {
return $this->execute('ROLLBACK');
}
return false;
}
/**
* Returns a formatted error message from previous database operation.
*
* @return string Error message with error number
*/
function lastError() {
if (mysql_errno($this->connection)) {
return mysql_errno($this->connection).': '.mysql_error($this->connection);
}
return null;
}
/**
* Returns number of affected rows in previous database operation. If no previous operation exists,
* this returns false.
*
* @return int Number of affected rows
*/
function lastAffected() {
if ($this->_result) {
return mysql_affected_rows($this->connection);
}
return null;
}
/**
* Returns number of rows in previous resultset. If no previous resultset exists,
* this returns false.
*
* @return int Number of rows in resultset
*/
function lastNumRows() {
if ($this->_result and is_resource($this->_result)) {
return @mysql_num_rows($this->_result);
}
return null;
}
/**
* Returns the ID generated from the previous INSERT operation.
*
* @param unknown_type $source
* @return in
*/
function lastInsertId($source = null) {
$id = $this->fetchAll('SELECT LAST_INSERT_ID() AS insertID', false);
if ($id !== false && !empty($id) && !empty($id[0]) && isset($id[0][0]['insertID'])) {
return $id[0][0]['insertID'];
}
return null;
}
/**
* Converts database-layer column types to basic types
*
* @param string $real Real database-layer column type (i.e. "varchar(255)")
* @return string Abstract column type (i.e. "string")
*/
function column($real) {
if (is_array($real)) {
$col = $real['name'];
if (isset($real['limit'])) {
$col .= '('.$real['limit'].')';
}
return $col;
}
$col = r(')', '', $real);
$limit = $this->length($real);
@list($col) = explode('(', $col);
if (in_array($col, array('date', 'time', 'datetime', 'timestamp'))) {
return $col;
}
if ($col == 'tinyint' && $limit == 1) {
return 'boolean';
}
if (strpos($col, 'int') !== false) {
return 'integer';
}
if (strpos($col, 'char') !== false || $col == 'tinytext') {
return 'string';
}
if (strpos($col, 'text') !== false) {
return 'text';
}
if (strpos($col, 'blob') !== false) {
return 'binary';
}
if (in_array($col, array('float', 'double', 'decimal'))) {
return 'float';
}
if (strpos($col, 'enum') !== false) {
return "enum($limit)";
}
if ($col == 'boolean') {
return $col;
}
return 'text';
}
/**
* Gets the length of a database-native column description, or null if no length
*
* @param string $real Real database-layer column type (i.e. "varchar(255)")
* @return int An integer representing the length of the column
*/
function length($real) {
$col = r(array(')', 'unsigned'), '', $real);
$limit = null;
if (strpos($col, '(') !== false) {
list($col, $limit) = explode('(', $col);
}
if ($limit != null) {
return intval($limit);
}
return null;
}
/**
* Enter description here...
*
* @param unknown_type $results
*/
function resultSet(&$results) {
$this->results =& $results;
$this->map = array();
$num_fields = mysql_num_fields($results);
$index = 0;
$j = 0;
while ($j < $num_fields) {
$column = mysql_fetch_field($results,$j);
if (!empty($column->table)) {
$this->map[$index++] = array($column->table, $column->name);
} else {
$this->map[$index++] = array(0, $column->name);
}
$j++;
}
}
/**
* Fetches the next row from the current result set
*
* @return unknown
*/
function fetchResult() {
if ($row = mysql_fetch_row($this->results)) {
$resultRow = array();
$i = 0;
foreach ($row as $index => $field) {
list($table, $column) = $this->map[$index];
$resultRow[$table][$column] = $row[$index];
$i++;
}
return $resultRow;
} else {
return false;
}
}
/**
* Sets the database encoding
*
* @param string $enc Database encoding
* @return void
*/
function setEncoding($enc) {
return $this->_execute('SET NAMES ' . $enc) != false;
}
/**
* Gets the database encoding
*
* @return string The database encoding
*/
function getEncoding() {
return mysql_client_encoding($this->connection);
}
/**
* Generate a MySQL schema for the given Schema object
*
* @param object $schema An instance of a subclass of CakeSchema
* @param string $table Optional. If specified only the table name given will be generated.
* Otherwise, all tables defined in the schema are generated.
* @return string
*/
function generateSchema($schema, $table = null) {
if (!is_a($schema, 'CakeSchema')) {
trigger_error(__('Invalid schema object'), E_USER_WARNING);
return null;
}
$out = '';
foreach ($schema->tables as $curTable => $columns) {
if (empty($table) || $table == $curTable) {
$out .= 'CREATE TABLE ' . $this->fullTableName($curTable) . " (\n";
$colList = array();
$primary = null;
foreach ($columns as $col) {
if (isset($col['key']) && $col['key'] == 'primary') {
$primary = $col;
}
$colList[] = $this->generateColumnSchema($col);
}
if (empty($primary)) {
$primary = array('id', 'integer', 'key' => 'primary');
array_unshift($colList, $this->generateColumnSchema($primary));
}
$colList[] = 'PRIMARY KEY (' . $this->name($primary[0]) . ')';
$out .= "\t" . join(",\n\t", $colList) . "\n);\n\n";
}
}
return $out;
}
/**
* Generate a MySQL-native column schema string
*
* @param array $column An array structured like the following: array('name', 'type'[, options]),
* where options can be 'default', 'length', or 'key'.
* @return string
*/
function generateColumnSchema($column) {
$name = $type = null;
$column = am(array('null' => true), $column);
list($name, $type) = $column;
if (empty($name) || empty($type)) {
trigger_error('Column name or type not defined in schema', E_USER_WARNING);
return null;
}
if (!isset($this->columns[$type])) {
trigger_error("Column type {$type} does not exist", E_USER_WARNING);
return null;
}
$real = $this->columns[$type];
$out = $this->name($name) . ' ' . $real['name'];
if (isset($real['limit']) || isset($real['length']) || isset($column['limit']) || isset($column['length'])) {
if (isset($column['length'])) {
$length = $column['length'];
} elseif (isset($column['limit'])) {
$length = $column['limit'];
} elseif (isset($real['length'])) {
$length = $real['length'];
} else {
$length = $real['limit'];
}
$out .= '(' . $length . ')';
}
if (isset($column['key']) && $column['key'] == 'primary') {
$out .= ' NOT NULL AUTO_INCREMENT';
} elseif (isset($column['default'])) {
$out .= ' DEFAULT ' . $this->value($column['default'], $type);
} elseif (isset($column['null']) && $column['null'] == true) {
$out .= ' DEFAULT NULL';
} elseif (isset($column['default']) && isset($column['null']) && $column['null'] == false) {
$out .= ' DEFAULT ' . $this->value($column['default'], $type) . ' NOT NULL';
} elseif (isset($column['null']) && $column['null'] == false) {
$out .= ' NOT NULL';
}
return $out;
}
/**
* Enter description here...
*
* @param unknown_type $schema
* @return unknown
*/
function buildSchemaQuery($schema) {
$search = array('{AUTOINCREMENT}', '{PRIMARY}', '{UNSIGNED}', '{FULLTEXT}',
'{FULLTEXT_MYSQL}', '{BOOLEAN}', '{UTF_8}');
$replace = array('int(11) not null auto_increment', 'primary key', 'unsigned',
'FULLTEXT', 'FULLTEXT', 'enum (\'true\', \'false\') NOT NULL default \'true\'',
'/*!40100 CHARACTER SET utf8 COLLATE utf8_unicode_ci */');
$query = trim(r($search, $replace, $schema));
return $query;
}
}
?>