294 lines
6.5 KiB
PHP
294 lines
6.5 KiB
PHP
<?php
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# Copyright (C) 2006-2011 Tobias Leupold <tobias.leupold@web.de>
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#
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# This file is part of the b8 package
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#
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# This program is free software; you can redistribute it and/or modify it
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# under the terms of the GNU Lesser General Public License as published by
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# the Free Software Foundation in version 2.1 of the License.
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#
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# This program is distributed in the hope that it will be useful, but
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# WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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# or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
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# License for more details.
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#
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# You should have received a copy of the GNU Lesser General Public License
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# along with this program; if not, write to the Free Software Foundation,
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# Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.
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/**
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* The MySQL abstraction layer for communicating with the database.
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* Copyright (C) 2009 Oliver Lillie (aka buggedcom)
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* Copyright (C) 2010-2011 Tobias Leupold <tobias.leupold@web.de>
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*
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* @license LGPL
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* @access public
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* @package b8
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* @author Oliver Lillie (aka buggedcom) (original PHP 5 port and optimizations)
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* @author Tobias Leupold
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*/
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class b8_storage_frndc extends b8_storage_base
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{
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public $config = array(
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'database' => 'b8_wordlist',
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'table_name' => 'b8_wordlist',
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'host' => 'localhost',
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'user' => FALSE,
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'pass' => FALSE,
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'connection' => NULL
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);
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public $b8_config = array(
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'degenerator' => NULL,
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'today' => NULL
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);
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private $_connection = NULL;
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private $_deletes = array();
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private $_puts = array();
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private $_updates = array();
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private $uid = 0;
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const DATABASE_CONNECTION_FAIL = 'DATABASE_CONNECTION_FAIL';
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const DATABASE_CONNECTION_ERROR = 'DATABASE_CONNECTION_ERROR';
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const DATABASE_CONNECTION_BAD_RESOURCE = 'DATABASE_CONNECTION_BAD_RESOURCE';
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const DATABASE_SELECT_ERROR = 'DATABASE_SELECT_ERROR';
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const DATABASE_TABLE_ACCESS_FAIL = 'DATABASE_TABLE_ACCESS_FAIL';
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const DATABASE_WRONG_VERSION = 'DATABASE_WRONG_VERSION';
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/**
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* Constructs the database layer.
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*
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* @access public
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* @param string $config
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*/
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function __construct($config, $degenerator, $today)
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{
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# Pass some variables of the main b8 config to this class
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$this->b8_config['degenerator'] = $degenerator;
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$this->b8_config['today'] = $today;
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# Validate the config items
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if(count($config) > 0) {
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foreach ($config as $name => $value) {
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switch($name) {
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case 'table_name':
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case 'host':
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case 'user':
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case 'pass':
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case 'database':
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$this->config[$name] = (string) $value;
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break;
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case 'connection':
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if($value !== NULL) {
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if(is_resource($value) === TRUE) {
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$resource_type = get_resource_type($value);
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$this->config['connection'] = $resource_type !== 'mysql link' && $resource_type !== 'mysql link persistent' ? FALSE : $value;
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}
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else
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$this->config['connection'] = FALSE;
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}
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break;
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}
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}
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}
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}
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/**
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* Closes the database connection.
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*
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* @access public
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* @return void
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*/
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function __destruct()
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{
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if($this->_connection === NULL)
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return;
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# Commit any changes before closing
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$this->_commit();
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# Just close the connection if no link-resource was passed and b8 created it's own connection
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if($this->config['connection'] === NULL)
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mysql_close($this->_connection);
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$this->connected = FALSE;
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}
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/**
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* Connect to the database and do some checks.
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*
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* @access public
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* @return mixed Returns TRUE on a successful database connection, otherwise returns a constant from b8.
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*/
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public function connect()
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{
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$this->connected = TRUE;
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return TRUE;
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}
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/**
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* Does the actual interaction with the database when fetching data.
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*
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* @access protected
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* @param array $tokens
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* @return mixed Returns an array of the returned data in the format array(token => data) or an empty array if there was no data.
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*/
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protected function _get_query($tokens, $uid)
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{
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# Construct the query ...
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if(count($tokens) > 0) {
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$where = array();
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foreach ($tokens as $token) {
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$token = dbesc($token);
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array_push($where, $token);
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}
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$where = 'token IN ("' . implode('", "', $where) . '")';
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}
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else {
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$token = dbesc($token);
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$where = 'token = "' . $token . '"';
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}
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# ... and fetch the data
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$result = q('
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SELECT *
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FROM ' . $this->config['table_name'] . '
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WHERE ' . $where . ' AND uid = ' . $uid );
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return $result;
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}
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/**
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* Store a token to the database.
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*
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* @access protected
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* @param string $token
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* @param string $count
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* @return void
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*/
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protected function _put($token, $count, $uid) {
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$token = dbesc($token);
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$count = dbesc($count);
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$uid = dbesc($uid);
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array_push($this->_puts, '("' . $token . '", "' . $count . '", "' . $uid .'")');
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}
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/**
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* Update an existing token.
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*
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* @access protected
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* @param string $token
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* @param string $count
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* @return void
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*/
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protected function _update($token, $count, $uid)
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{
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$token = dbesc($token);
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$count = dbesc($count);
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$uid = dbesc($uid);
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array_push($this->_puts, '("' . $token . '", "' . $count . '", "' . $uid .'")');
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}
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/**
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* Remove a token from the database.
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*
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* @access protected
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* @param string $token
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* @return void
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*/
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protected function _del($token, $uid)
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{
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$token = dbesc($token);
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$uid = dbesc($uid);
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$this->uid = $uid;
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array_push($this->_deletes, $token);
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}
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/**
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* Commits any modification queries.
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*
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* @access protected
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* @return void
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*/
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protected function _commit($uid)
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{
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if(count($this->_deletes) > 0) {
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$result = q('
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DELETE FROM ' . $this->config['table_name'] . '
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WHERE token IN ("' . implode('", "', $this->_deletes) . '") AND uid = ' . $this->uid);
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$this->_deletes = array();
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}
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if(count($this->_puts) > 0) {
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$result = q('
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INSERT INTO ' . $this->config['table_name'] . '(token, count, uid)
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VALUES ' . implode(', ', $this->_puts));
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$this->_puts = array();
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}
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if(count($this->_updates) > 0) {
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// this still needs work
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$result = q("select * from " . $this->config['table_name'] . ' where token = ');
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$result = q('
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INSERT INTO ' . $this->config['table_name'] . '(token, count, uid)
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VALUES ' . implode(', ', $this->_updates) . ', ' . $uid . '
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ON DUPLICATE KEY UPDATE ' . $this->config['table_name'] . '.count = VALUES(count);', $this->_connection);
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$this->_updates = array();
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}
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}
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}
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?>
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