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src.bluestatic.org Git - isso.git/blob - db_mysql.php
2 /*=====================================================================*\
3 || ###################################################################
4 || # Blue Static ISSO Framework [#]issoversion[#]
5 || # Copyright ©2002-[#]year[#] Blue Static
7 || # This program is free software; you can redistribute it and/or modify
8 || # it under the terms of the GNU General Public License as published by
9 || # the Free Software Foundation; version [#]gpl[#] of the License.
11 || # This program is distributed in the hope that it will be useful, but
12 || # WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
13 || # or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
16 || # You should have received a copy of the GNU General Public License along
17 || # with this program; if not, write to the Free Software Foundation, Inc.,
18 || # 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
19 || ###################################################################
20 \*=====================================================================*/
23 * MySQL Database Abstraction Layer
29 $this->load('db', null);
32 * MySQL Database Abstraction Layer
34 * This framework is a function wrapper for MySQL functions so we can have
35 * better error reporting and query reporting.
38 * @copyright Copyright ©2002 - [#]year[#], Blue Static
43 class DB_MySQL
extends DB_Abstract
46 * Command mapping list
49 private $commands = array(
50 'pconnect' => '$this->command_mysql_pconnect',
51 'connect' => '$this->command_mysql_connect',
52 'query' => '$this->command_mysql_query',
53 'error_num' => 'mysql_errno',
54 'error_str' => 'mysql_error',
55 'escape_string' => '$this->command_mysql_escape_string',
56 'escape_binary' => '$this->escape_binary',
57 'fetch_assoc' => 'mysql_fetch_assoc',
58 'fetch_row' => 'mysql_fetch_row',
59 'fetch_object' => 'mysql_fetch_object',
60 'free_result' => 'mysql_free_result',
61 'insert_id' => 'mysql_insert_id',
62 'num_rows' => 'mysql_num_rows',
63 'affected_rows' => 'mysql_affected_rows'
66 // ###################################################################
70 public function __construct(&$registry)
72 parent
::__construct($registry);
75 // ###################################################################
77 * Wrapper: mysql_pconnect
79 * @param string Server name
80 * @param string User name
81 * @param string Password
82 * @param string Database
84 * @return integer DB-Link
86 protected function command_mysql_pconnect($server, $user, $password, $database)
88 $link = mysql_pconnect($server, $user, $password);
89 $this->select_db($database, $link);
94 // ###################################################################
96 * Wrapper: mysql_connect
98 * @param string Server name
99 * @param string User name
100 * @param string Password
101 * @param string Database
103 * @return integer DB-Link
105 protected function command_mysql_connect($server, $user, $password, $database)
107 $link = mysql_connect($server, $user, $password);
108 $this->select_db($database, $link);
113 // ###################################################################
115 * Wrapper: mysql_select_db
117 * @param string Database name
118 * @param integer DB-Link
120 protected function select_db($database, $link)
122 if (!mysql_select_db($database, $link))
124 $this->error('Cannot use the database \'' . $this->database
. '\'');
128 // ###################################################################
130 * Wrapper: mysql_query
132 * @param integer DB-Link
133 * @param string Query string
135 * @return integer Result
137 protected function command_mysql_query($link, $string)
139 return mysql_query($string, $link);
142 // ###################################################################
144 * Escapes a binary string for insertion into the database
146 * @param string Unescaped data
148 * @return string Escaped binary data
150 public function escape_binary($binary)
152 return mysql_escape_string($binary);
155 // ###################################################################
157 * Wrapper: mysql(_real)_escape_string
159 * @param integer DB-Link
160 * @param string Unescaped text
162 * @return string Escaped text
164 protected function command_mysql_escape_string($link, $string)
166 if (function_exists('mysql_real_escape_string'))
168 return @mysql_real_escape_string($string, $link);
172 return @mysql_escape_string($string);
176 // ###################################################################
178 * Not supported: unescape binary string
180 * @param string Escaped data
182 * @return string Same data
184 protected function command_unescape_binary($string)
189 // ###################################################################
191 * Starts a database transaction
193 public function transaction_start()
195 $this->query("BEGIN WORK");
198 // ###################################################################
200 * Saves current transaction steps as a savepoint
202 * @param string Named savepoint
204 public function transaction_savepoint($name)
206 $this->query("SAVEPOINT $name");
209 // ###################################################################
211 * Reverts a transaction back to a given savepoint
213 * @param string Named savepoint
215 public function transaction_rollback($name = null)
217 $this->query("ROLLBACK
" . ($name != null ? " TO SAVEPOINT
$name" : ""));
220 // ###################################################################
222 * Commits a database transaction
224 public function transaction_commit()
226 $this->query("COMMIT");
230 /*=====================================================================*\
231 || ###################################################################
234 || ###################################################################
235 \*=====================================================================*/