www.gusucode.com > FavShop网店系统源码程序 > FavShop网店系统 1.0/upload/cake/libs/model/datasources/dbo/dbo_firebird.php
<?php
/* SVN FILE: $Id: dbo_firebird.php 6311 2008-01-02 06:33:52Z phpnut $ */
/**
* Firebird/Interbase layer for DBO
*
* Long description for file
*
* PHP versions 4 and 5
*
* CakePHP(tm) : Rapid Development Framework <http://www.cakephp.org/>
* Copyright 2005-2008, 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 2005-2008, 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 1.2.0.5152
* @version $Revision: 6311 $
* @modifiedby $LastChangedBy: phpnut $
* @lastmodified $Date: 2008-01-02 00:33:52 -0600 (Wed, 02 Jan 2008) $
* @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.dbo
*/
class DboFirebird extends DboSource {
/**
* Enter description here...
*
* @var unknown_type
*/
var $description = "Firebird/Interbase DBO Driver";
/**
* Saves the original table name
*
* @var unknown_type
*/
var $modeltmp = array();
/**
* Enter description here...
*
* @var unknown_type
*/
var $startQuote = "\'";
/**
* Enter description here...
*
* @var unknown_type
*/
var $endQuote = "\'";
/**
* Enter description here...
*
* @var unknown_type
*/
var $alias = ' ';
/**
* Enter description here...
*
* @var unknown_type
*/
var $goofyLimit = true;
/**
* Creates a map between field aliases and numeric indexes.
*
* @var array
*/
var $__fieldMappings = array();
/**
* Base configuration settings for Firebird driver
*
* @var array
*/
var $_baseConfig = array(
'persistent' => true,
'host' => 'localhost',
'login' => 'SYSDBA',
'password' => 'masterkey',
'database' => 'c:\\CAKE.FDB',
'port' => '3050',
'connect' => 'ibase_connect'
);
/**
* Firebird column definition
*
* @var array
*/
var $columns = array(
'primary_key' => array('name' => 'integer IDENTITY (1, 1) NOT NULL'),
'string' => array('name' => 'varchar', 'limit' => '255'),
'text' => array('name' => 'BLOB SUB_TYPE 1 SEGMENT SIZE 100 CHARACTER SET NONE'),
'integer' => array('name' => 'integer'),
'float' => array('name' => 'float', 'formatter' => 'floatval'),
'datetime' => array('name' => 'timestamp', 'format' => 'd.m.Y H:i:s', 'formatter' => 'date'),
'timestamp' => array('name' => 'timestamp', 'format' => 'd.m.Y H:i:s', 'formatter' => 'date'),
'time' => array('name' => 'time', 'format' => 'H:i:s', 'formatter' => 'date'),
'date' => array('name' => 'date', 'format' => 'd.m.Y', 'formatter' => 'date'),
'binary' => array('name' => 'blob'),
'boolean' => array('name' => 'smallint')
);
/**
* 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;
$this->connection = $connect($config['host'] . ':' . $config['database'], $config['login'], $config['password']);
$this->connected = true;
}
/**
* Disconnects from database.
*
* @return boolean True if the database could be disconnected, else false
*/
function disconnect() {
$this->connected = false;
return @ibase_close($this->connection);
}
/**
* Executes given SQL statement.
*
* @param string $sql SQL statement
* @return resource Result resource identifier
* @access protected
*/
function _execute($sql) {
if (strpos(strtolower($sql),"update") > 0) {
break;
}
return @ibase_query($this->connection, $sql);
}
/**
* Returns a row from given resultset as an array .
*
* @param boolean $assoc Associative array only, or both?
* @return array The fetched row as an array
*/
function fetchRow($assoc = false) {
if (is_resource($this->_result)) {
$this->resultSet($this->_result);
$resultRow = $this->fetchResult();
return $resultRow;
} else {
return null;
}
}
/**
* 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;
}
$sql = "select RDB" . "$" . "RELATION_NAME as name
FROM RDB" ."$" . "RELATIONS
Where RDB" . "$" . "SYSTEM_FLAG =0";
$result = @ibase_query($this->connection,$sql);
$tables = array();
while ($row = ibase_fetch_row ($result)) {
$tables[] = strtolower(trim($row[0]));
}
parent::listSources($tables);
return $tables;
}
/**
* Returns an array of the fields in given table name.
*
* @param Model $model Model object to describe
* @return array Fields in table. Keys are name and type
*/
function describe(&$model) {
$this->modeltmp[$model->table] = $model->alias;
$cache = parent::describe($model);
if ($cache != null) {
return $cache;
}
$fields = false;
$sql = "SELECT * FROM " . $this->fullTableName($model, false);
$rs = ibase_query($sql);
$coln = ibase_num_fields($rs);
$fields = false;
for ($i = 0; $i < $coln; $i++) {
$col_info = ibase_field_info($rs, $i);
$fields[strtolower($col_info['name'])] = array(
'type' => $this->column($col_info['type']),
'null' => '',
'length' => $col_info['length']
);
}
$this->__cacheDescription($this->fullTableName($model, false), $fields);
return $fields;
}
/**
* Returns a quoted name of $data for use in an SQL statement.
*
* @param string $data Name (table.field) to be prepared for use in an SQL statement
* @return string Quoted for Firebird
*/
function name($data) {
if ($data == '*') {
return '*';
}
$pos = strpos($data, '"');
if ($pos === false) {
if (!strpos($data, ".")) {
$data = '"' . strtoupper($data) . '"';
} else {
$build = explode('.', $data);
$data = '"' . strtoupper($build[0]) . '"."' . strtoupper($build[1]) . '"';
}
}
return $data;
}
/**
* 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;
default:
if (get_magic_quotes_gpc()) {
$data = stripslashes(str_replace("'", "''", $data));
} else {
$data = str_replace("'", "''", $data);
}
break;
}
return "'" . $data . "'";
}
/**
* Removes Identity (primary key) column from update data before returning to parent
*
* @param Model $model
* @param array $fields
* @param array $values
* @return array
*/
function update(&$model, $fields = array(), $values = array()) {
foreach ($fields as $i => $field) {
if ($field == $model->primaryKey) {
unset ($fields[$i]);
unset ($values[$i]);
break;
}
}
return parent::update($model, $fields, $values);
}
/**
* Returns a formatted error message from previous database operation.
*
* @return string Error message with error number
*/
function lastError() {
$error = ibase_errmsg();
if ($error !== false) {
return $error;
}
return null;
}
/**
* Returns number of affected rows in previous database operation. If no previous operation exists,
* this returns false.
*
* @return integer Number of affected rows
*/
function lastAffected() {
if ($this->_result) {
return ibase_affected_rows($this->connection);
}
return null;
}
/**
* Returns number of rows in previous resultset. If no previous resultset exists,
* this returns false.
*
* @return integer Number of rows in resultset
*/
function lastNumRows() {
return $this->_result? /*ibase_affected_rows($this->_result)*/ 1: false;
}
/**
* Returns the ID generated from the previous INSERT operation.
*
* @param unknown_type $source
* @return in
*/
function lastInsertId($source = null, $field = 'id') {
$query = "SELECT RDB\$TRIGGER_SOURCE
FROM RDB\$TRIGGERS WHERE RDB\$RELATION_NAME = '". strtoupper($source) . "' AND
RDB\$SYSTEM_FLAG IS NULL AND RDB\$TRIGGER_TYPE = 1 ";
$result = @ibase_query($this->connection,$query);
$generator = "";
while ($row = ibase_fetch_row($result, IBASE_TEXT)) {
if (strpos($row[0], "NEW." . strtoupper($field))) {
$pos = strpos($row[0], "GEN_ID(");
if ($pos > 0) {
$pos2 = strpos($row[0],",",$pos + 7);
if ($pos2 > 0) {
$generator = substr($row[0], $pos +7, $pos2 - $pos- 7);
}
}
break;
}
}
if (!empty($generator)) {
$sql = "SELECT GEN_ID(". $generator . ",0) AS maxi FROM RDB" . "$" . "DATABASE";
$res = $this->rawQuery($sql);
$data = $this->fetchRow($res);
return $data['maxi'];
} else {
return false;
}
}
/**
* Returns a limit statement in the correct format for the particular database.
*
* @param integer $limit Limit of results returned
* @param integer $offset Offset from which to start results
* @return string SQL limit/offset statement
*/
function limit($limit, $offset = null) {
if ($limit) {
$rt = '';
if (!strpos(strtolower($limit), 'top') || strpos(strtolower($limit), 'top') === 0) {
$rt = ' FIRST';
}
$rt .= ' ' . $limit;
if (is_int($offset) && $offset > 0) {
$rt .= ' SKIP ' . $offset;
}
return $rt;
}
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 = str_replace(')', '', $real);
$limit = null;
@list($col, $limit)=explode('(', $col);
if (in_array($col, array('DATE', 'TIME'))) {
return strtolower($col);
}
if ($col == 'TIMESTAMP') {
return 'datetime';
}
if ($col == 'SMALLINT') {
return 'boolean';
}
if (strpos($col, 'int') !== false || $col == 'numeric' || $col == 'INTEGER') {
return 'integer';
}
if (strpos($col, 'char') !== false) {
return 'string';
}
if (strpos($col, 'text') !== false) {
return 'text';
}
if (strpos($col, 'VARCHAR') !== false) {
return 'string';
}
if (strpos($col, 'BLOB') !== false) {
return 'text';
}
if (in_array($col, array('FLOAT', 'NUMERIC', 'DECIMAL'))) {
return 'float';
}
return 'text';
}
/**
* Enter description here...
*
* @param unknown_type $results
*/
function resultSet(&$results) {
$this->results =& $results;
$this->map = array();
$num_fields = ibase_num_fields($results);
$index = 0;
$j = 0;
while ($j < $num_fields) {
$column = ibase_field_info($results, $j);
if (!empty($column[2])) {
$this->map[$index++] = array(ucfirst(strtolower($this->modeltmp[strtolower($column[2])])), strtolower($column[1]));
} else {
$this->map[$index++] = array(0, strtolower($column[1]));
}
$j++;
}
}
/**
* Builds final SQL statement
*
* @param string $type Query type
* @param array $data Query data
* @return string
*/
function renderStatement($type, $data) {
extract($data);
if (strtolower($type) == 'select') {
if (preg_match('/offset\s+([0-9]+)/i', $limit, $offset)) {
$limit = preg_replace('/\s*offset.*$/i', '', $limit);
preg_match('/top\s+([0-9]+)/i', $limit, $limitVal);
$offset = intval($offset[1]) + intval($limitVal[1]);
$rOrder = $this->__switchSort($order);
list($order2, $rOrder) = array($this->__mapFields($order), $this->__mapFields($rOrder));
return "SELECT * FROM (SELECT {$limit} * FROM (SELECT TOP {$offset} {$fields} FROM {$table} {$alias} {$joins} {$conditions} {$order}) AS Set1 {$rOrder}) AS Set2 {$order2}";
} else {
return "SELECT {$limit} {$fields} FROM {$table} {$alias} {$joins} {$conditions} {$order}";
}
} else {
return parent::renderStatement($type, $data);
}
}
/**
* Fetches the next row from the current result set
*
* @return unknown
*/
function fetchResult() {
if ($row = ibase_fetch_row($this->results, IBASE_TEXT)) {
$resultRow = array();
$i = 0;
foreach ($row as $index => $field) {
list($table, $column) = $this->map[$index];
if (trim($table) == "") {
$resultRow[0][$column] = $row[$index];
} else {
$resultRow[$table][$column] = $row[$index];
$i++;
}
}
return $resultRow;
} else {
return false;
}
}
/**
* Inserts multiple values into a join table
*
* @param string $table
* @param string $fields
* @param array $values
*/
function insertMulti($table, $fields, $values) {
parent::__insertMulti($table, $fields, $values);
}
}
?>