mirror of
https://github.com/kamilwylegala/cakephp2-php8.git
synced 2024-11-15 19:38:26 +00:00
076a5dbd63
git-svn-id: https://svn.cakephp.org/repo/branches/1.2.x.x@4527 3807eeeb-6ff5-0310-8944-8be069107fe0
546 lines
13 KiB
PHP
546 lines
13 KiB
PHP
<?php
|
|
/* SVN FILE: $Id$ */
|
|
/**
|
|
* Oracle 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.dbo
|
|
* @since CakePHP(tm) v 1.1.11.4041
|
|
* @version $Revision$
|
|
* @modifiedby $LastChangedBy$
|
|
* @lastmodified $Date$
|
|
* @license http://www.opensource.org/licenses/mit-license.php The MIT License
|
|
*/
|
|
/**
|
|
* Include DBO.
|
|
*/
|
|
uses('model'.DS.'datasources'.DS.'dbo_source');
|
|
/**
|
|
* Short description for class.
|
|
*
|
|
* Long description for class
|
|
*
|
|
* @package cake
|
|
* @subpackage cake.cake.libs.model.dbo
|
|
*/
|
|
class DboOracle extends DboSource {
|
|
/**
|
|
* Enter description here...
|
|
*
|
|
* @var unknown_type
|
|
* @access public
|
|
*/
|
|
var $config;
|
|
/**
|
|
* Enter description here...
|
|
*
|
|
* @var unknown_type
|
|
* @access public
|
|
*/
|
|
var $alias = '';
|
|
|
|
/**
|
|
* The name of the model's sequence
|
|
*
|
|
* @var unknown_type
|
|
*/
|
|
var $sequence = '';
|
|
|
|
/**
|
|
* Enter description here...
|
|
*
|
|
* @var unknown_type
|
|
* @access public
|
|
*/
|
|
var $columns = array('primary_key' => array('name' => 'number NOT NULL'),
|
|
'string' => array('name' => 'varchar2', 'limit' => '255'),
|
|
'text' => array('name' => 'varchar2'),
|
|
'integer' => array('name' => 'numeric'),
|
|
'float' => array('name' => 'float'),
|
|
'datetime' => array('name' => 'date'),
|
|
'timestamp' => array('name' => 'date'),
|
|
'time' => array('name' => 'date'),
|
|
'date' => array('name' => 'date'),
|
|
'binary' => array('name' => 'bytea'),
|
|
'boolean' => array('name' => 'boolean'),
|
|
'number' => array('name' => 'numeric'),
|
|
'inet' => array('name' => 'inet'));
|
|
/**
|
|
* Enter description here...
|
|
*
|
|
* @var unknown_type
|
|
* @access protected
|
|
*/
|
|
var $connection;
|
|
/**
|
|
* Enter description here...
|
|
*
|
|
* @var unknown_type
|
|
* @access protected
|
|
*/
|
|
var $_limit = -1;
|
|
/**
|
|
* Enter description here...
|
|
*
|
|
* @var unknown_type
|
|
* @access protected
|
|
*/
|
|
var $_offset = 0;
|
|
/**
|
|
* Enter description here...
|
|
*
|
|
* @var unknown_type
|
|
* @access protected
|
|
*/
|
|
var $_map;
|
|
/**
|
|
* Enter description here...
|
|
*
|
|
* @var unknown_type
|
|
* @access protected
|
|
*/
|
|
var $_currentRow;
|
|
/**
|
|
* Enter description here...
|
|
*
|
|
* @var unknown_type
|
|
* @access protected
|
|
*/
|
|
var $_numRows;
|
|
/**
|
|
* Enter description here...
|
|
*
|
|
* @var unknown_type
|
|
* @access protected
|
|
*/
|
|
var $_results;
|
|
/**
|
|
* Connects to the database using options in the given configuration array.
|
|
*
|
|
* @return boolean True if the database could be connected, else false
|
|
* @access public
|
|
*/
|
|
function connect() {
|
|
$config = $this->config;
|
|
$connect = $config['connect'];
|
|
$this->connected = false;
|
|
$this->connection = $connect($config['login'], $config['password'], $config['database']);
|
|
|
|
if ($this->connection) {
|
|
$this->connected = true;
|
|
$this->execute('ALTER SESSION SET NLS_SORT=BINARY_CI');
|
|
$this->execute('ALTER SESSION SET NLS_COMP=ANSI');
|
|
} else {
|
|
$this->connected = false;
|
|
}
|
|
return $this->connected;
|
|
}
|
|
|
|
/**
|
|
* Disconnects from database.
|
|
*
|
|
* @return boolean True if the database could be disconnected, else false
|
|
* @access public
|
|
*/
|
|
function disconnect() {
|
|
if ($this->connection) {
|
|
return ocilogoff($this->connection);
|
|
}
|
|
}
|
|
/**
|
|
* Scrape the incoming SQL to create the association map. This is an extremely
|
|
* experimental method that creates the association maps since Oracle will not tell us.
|
|
*
|
|
* @param string $sql
|
|
* @return false if sql is nor a SELECT
|
|
* @access protected
|
|
*/
|
|
function _scrapeSQL($sql) {
|
|
|
|
$sql = str_replace("\"", '', $sql);
|
|
$preFrom = explode('FROM', $sql);
|
|
$preFrom = $preFrom[0];
|
|
$find = array('SELECT');
|
|
$replace = array('');
|
|
$fieldList = trim(str_replace($find, $replace, $preFrom));
|
|
$fields = explode(', ', $fieldList);
|
|
|
|
// clean fields of functions
|
|
foreach ($fields as &$value) {
|
|
if ($value != 'COUNT(*) AS count') {
|
|
preg_match_all('/[[:alnum:]_]+\.[[:alnum:]_]+/', $value, $matches);
|
|
if ($matches[0]) {
|
|
$value = $matches[0][0];
|
|
}
|
|
}
|
|
}
|
|
|
|
$this->_map = array();
|
|
foreach ($fields as $f) {
|
|
$e = explode('.', $f);
|
|
if (count($e) > 1) {
|
|
$table = $e[0];
|
|
$field = strtolower($e[1]);
|
|
} else {
|
|
$table = 0;
|
|
$field = $e[0];
|
|
}
|
|
$this->_map[] = array($table, $field);
|
|
}
|
|
}
|
|
/**
|
|
* Modify a SQL query to limit (and offset) the result set
|
|
*
|
|
* @param int $limit Maximum number of rows to return
|
|
* @param int $offset Row to begin returning
|
|
* @return modified SQL Query
|
|
* @access public
|
|
*/
|
|
function limit($limit, $offset = 0) {
|
|
$this->_limit = (float) $limit;
|
|
$this->_offset = (float) $offset;
|
|
}
|
|
/**
|
|
* Returns number of rows in previous resultset. If no previous resultset exists,
|
|
* this returns false.
|
|
*
|
|
* @return int Number of rows in resultset
|
|
* @access public
|
|
*/
|
|
function lastNumRows() {
|
|
return $this->_numRows;
|
|
}
|
|
|
|
/**
|
|
* Executes given SQL statement. This is an overloaded method.
|
|
*
|
|
* @param string $sql SQL statement
|
|
* @return resource Result resource identifier or null
|
|
* @access protected
|
|
*/
|
|
function _execute($sql) {
|
|
$this->_statementId = ociparse($this->connection, $sql);
|
|
if (!$this->_statementId) {
|
|
return null;
|
|
}
|
|
if ($this->_transactionStarted) {
|
|
$mode = OCI_DEFAULT;
|
|
} else {
|
|
$mode = OCI_COMMIT_ON_SUCCESS;
|
|
}
|
|
if (!ociexecute($this->_statementId, $mode)) {
|
|
return false;
|
|
}
|
|
// fetch occurs here instead of fetchResult in order to get the number of rows
|
|
switch (ocistatementtype($this->_statementId)) {
|
|
case 'DESCRIBE':
|
|
case 'SELECT':
|
|
$this->_scrapeSQL($sql);
|
|
break;
|
|
default:
|
|
return $this->_statementId;
|
|
}
|
|
if ($this->_limit >= 1) {
|
|
ocisetprefetch($this->_statementId, $this->_limit);
|
|
} else {
|
|
ocisetprefetch($this->_statementId, 3000);
|
|
}
|
|
$this->_numRows = ocifetchstatement($this->_statementId, $this->_results, $this->_offset, $this->_limit, OCI_NUM | OCI_FETCHSTATEMENT_BY_ROW);
|
|
$this->_currentRow = 0;
|
|
return $this->_statementId;
|
|
}
|
|
/**
|
|
* Enter description here...
|
|
*
|
|
* @return unknown
|
|
* @access public
|
|
*/
|
|
function fetchRow() {
|
|
if ($this->_currentRow >= $this->_numRows) {
|
|
ocifreestatement($this->_statementId);
|
|
return false;
|
|
}
|
|
$resultRow = array();
|
|
foreach ($this->_results[$this->_currentRow] as $index => $field) {
|
|
list($table, $column) = $this->_map[$index];
|
|
if (strpos($column, ' count')) {
|
|
$resultRow[0]['count'] = $field;
|
|
} else {
|
|
$resultRow[$table][$column] = $this->_results[$this->_currentRow][$index];
|
|
}
|
|
}
|
|
$this->_currentRow++;
|
|
return $resultRow;
|
|
}
|
|
/**
|
|
* Checks to see if a named sequence exists
|
|
*
|
|
* @param string $sequence
|
|
* @return boolean
|
|
* @access public
|
|
*/
|
|
function sequenceExists($sequence) {
|
|
$sql = "SELECT SEQUENCE_NAME FROM USER_SEQUENCES WHERE SEQUENCE_NAME = '$sequence'";
|
|
if (!$this->execute($sql)) return false;
|
|
return $this->fetchRow();
|
|
}
|
|
|
|
/**
|
|
* Creates a database sequence
|
|
*
|
|
* @param string $sequence
|
|
* @return boolean
|
|
* @access public
|
|
*/
|
|
function createSequence($sequence) {
|
|
$sql = "CREATE SEQUENCE $sequence";
|
|
return $this->execute($sql);
|
|
}
|
|
|
|
function createTrigger($table) {
|
|
$sql = "CREATE OR REPLACE TRIGGER pk_$table" . "_trigger BEFORE INSERT ON $table FOR EACH ROW BEGIN SELECT pk_$table.NEXTVAL INTO :NEW.ID FROM DUAL; END;";
|
|
return $this->execute($sql);
|
|
}
|
|
|
|
/**
|
|
* Returns an array of tables in the database. If there are no tables, an error is
|
|
* raised and the application exits.
|
|
*
|
|
* @return array tablenames in the database
|
|
* @access public
|
|
*/
|
|
function listSources() {
|
|
$cache = parent::listSources();
|
|
if ($cache != null) {
|
|
return $cache;
|
|
}
|
|
$sql = 'SELECT view_name AS name FROM user_views UNION SELECT table_name AS name FROM user_tables';
|
|
if (!$this->execute($sql)) {
|
|
return false;
|
|
}
|
|
$sources = array();
|
|
while ($r = $this->fetchRow()) {
|
|
$sources[] = $r[0]['view_name AS name'];
|
|
}
|
|
parent::listSources($sources);
|
|
return $sources;
|
|
}
|
|
/**
|
|
* Returns an array of the fields in given table name.
|
|
*
|
|
* @param object instance of a model to inspect
|
|
* @return array Fields in table. Keys are name and type
|
|
* @access public
|
|
*/
|
|
function describe(&$model) {
|
|
$cache = parent::describe($model);
|
|
if ($cache != null) {
|
|
return $cache;
|
|
}
|
|
$sql = 'SELECT COLUMN_NAME, DATA_TYPE FROM user_tab_columns WHERE table_name = \'';
|
|
$sql .= strtoupper($model->table) . '\'';
|
|
if (!$this->execute($sql)) {
|
|
return false;
|
|
}
|
|
$fields = array();
|
|
for ($i=0; $row = $this->fetchRow(); $i++) {
|
|
$fields[$i]['name'] = strtolower($row[0]['COLUMN_NAME']);
|
|
$fields[$i]['type'] = $this->column($row[0]['DATA_TYPE']);
|
|
}
|
|
$this->__cacheDescription($model->tablePrefix.$model->table, $fields);
|
|
//$this->__cacheDescription($this->fullTableName($model, false), $fields);
|
|
return $fields;
|
|
}
|
|
/**
|
|
* This method should quote Oracle identifiers. Well it doesn't.
|
|
* It would break all scaffolding and all of Cake's default assumptions.
|
|
*
|
|
* @param unknown_type $var
|
|
* @return unknown
|
|
* @access public
|
|
*/
|
|
function name($var) {
|
|
switch ($var) {
|
|
/* the acl creation script uses illegal identifiers w/o quoting. the following
|
|
quotes only the illegal identifiers */
|
|
case '_create':
|
|
case '_read':
|
|
case '_update':
|
|
case '_delete':
|
|
return "\"$var\"";
|
|
default:
|
|
return $var;
|
|
}
|
|
}
|
|
/**
|
|
* 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('BEGIN')) {
|
|
$this->_transactionStarted = true;
|
|
return true;
|
|
//}
|
|
//}
|
|
return false;
|
|
}
|
|
/**
|
|
* Rollback a transaction
|
|
*
|
|
* @param unknown_type $model
|
|
* @return boolean True on success, false on fail
|
|
* (i.e. if the database/model does not support transactions,
|
|
* or a transaction has not started).
|
|
*/
|
|
function rollback() {
|
|
//if (parent::rollback($model)) {
|
|
return ocirollback($this->connection);
|
|
//}
|
|
//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)) {
|
|
$this->_transactionStarted = false;
|
|
return ocicommit($this->connection);
|
|
//}
|
|
//return false;
|
|
}
|
|
/**
|
|
* Converts database-layer column types to basic types
|
|
*
|
|
* @param string $real Real database-layer column type (i.e. "varchar(255)")
|
|
* @return string Abstract column type (i.e. "string")
|
|
* @access public
|
|
*/
|
|
function column($real) {
|
|
if (is_array($real)) {
|
|
$col = $real['name'];
|
|
|
|
if (isset($real['limit'])) {
|
|
$col .= '('.$real['limit'].')';
|
|
}
|
|
return $col;
|
|
} else {
|
|
$real = strtolower($real);
|
|
}
|
|
|
|
$col = r(')', '', $real);
|
|
$limit = null;
|
|
|
|
@list($col, $limit) = explode('(', $col);
|
|
|
|
if (in_array($col, array('date', 'timestamp'))) {
|
|
return $col;
|
|
}
|
|
if (strpos($col, 'number') !== false) {
|
|
return 'integer';
|
|
}
|
|
if (strpos($col, 'integer') !== false) {
|
|
return 'integer';
|
|
}
|
|
if (strpos($col, 'char') !== false) {
|
|
return 'string';
|
|
}
|
|
if (strpos($col, 'text') !== false) {
|
|
return 'text';
|
|
}
|
|
if (strpos($col, 'blob') !== false) {
|
|
return 'binary';
|
|
}
|
|
if (in_array($col, array('float', 'double', 'decimal'))) {
|
|
return 'float';
|
|
}
|
|
if ($col == 'boolean') {
|
|
return $col;
|
|
}
|
|
return 'text';
|
|
}
|
|
/**
|
|
* Returns a quoted and escaped string of $data for use in an SQL statement.
|
|
*
|
|
* @param string $data String to be prepared for use in an SQL statement
|
|
* @return string Quoted and escaped
|
|
* @access public
|
|
*/
|
|
function value($data, $column_type = null) {
|
|
// this can also be accomplished through an Oracle NLS parameter
|
|
switch ($column_type) {
|
|
case 'date':
|
|
$date = date('Y-m-d H:i:s', strtotime($data));
|
|
return "TO_DATE('$date', 'YYYY-MM-DD HH24:MI:SS')";
|
|
default:
|
|
$data2 = str_replace("'", "''", $data);
|
|
return "'".$data2."'";
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Returns the ID generated from the previous INSERT operation.
|
|
*
|
|
* @param string
|
|
* @return int
|
|
* @access public
|
|
*/
|
|
function lastInsertId($source) {
|
|
$sequence = (!empty($this->sequence)) ? $this->sequence : 'pk_'.$source;
|
|
$sql = "SELECT $sequence.currval FROM dual";
|
|
if (!$this->execute($sql)) {
|
|
return false;
|
|
}
|
|
while ($row = $this->fetchRow()) {
|
|
return $row[$sequence]['currval'];
|
|
}
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* Returns a formatted error message from previous database operation.
|
|
*
|
|
* @return string Error message with error number
|
|
* @access public
|
|
*/
|
|
function lastError() {
|
|
$errors = ocierror();
|
|
if( ($errors != null) && (isset($errors["message"])) ) {
|
|
return($errors["message"]);
|
|
}
|
|
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
|
|
* @access public
|
|
*/
|
|
function lastAffected() {
|
|
return $this->_statementId ? ocirowcount($this->_statementId): false;
|
|
}
|
|
}
|
|
?>
|