db_postgresql.php

   1 <?php
   2 /*=====================================================================*\
   3 || ###################################################################
   4 || # Blue Static ISSO Framework
   5 || # Copyright ©2002-[#]year[#] Blue Static
   6 || #
   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.
  10 || #
  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
  14 || # more details.
  15 || #
  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 \*=====================================================================*/
  21
  22 /**
  23 * PostgreSQL Database Abstraction Layer
  24 * db_postgresql.php
  25 *
  26 * @package      ISSO
  27 */
  28
  29 $this->load('db', null);
  30
  31 /**
  32 * PostgreSQL Database Abstraction Layer
  33 *
  34 * This framework is a function wrapper for PostgresQL functions so we can have
  35 * better error reporting and query reporting.
  36 *
  37 * @author               Blue Static
  38 * @copyright    Copyright ©2002 - [#]year[#], Blue Static
  39 * @version              $Revision$
  40 * @package              ISSO
  41 *
  42 */
  43 class DB_PostgreSQL extends DB_Abstract
  44 {
  45         /**
  46         * Command mapping list
  47         * @var  array
  48         * @access       private
  49         */
  50         var $commands = array(
  51                 'pconnect'                      => '$this->command_pg_pconnect',
  52                 'connect'                       => '$this->command_pg_connect',
  53                 'query'                         => 'pg_query',
  54                 'error_num'                     => '$this->command_error_num',
  55                 'error_str'                     => '$this->command_error_str',
  56                 'escape_string'         => '$this->command_pg_escape_string',
  57                 'escape_binary'         => 'pg_escape_bytea',
  58                 'unescape_binary'       => 'pg_unescape_bytea',
  59                 'fetch_assoc'           => 'pg_fetch_assoc',
  60                 'fetch_row'                     => 'pg_fetch_row',
  61                 'fetch_object'          => 'pg_fetch_object',
  62                 'free_result'           => 'pg_free_result',
  63                 'insert_id'                     => '%link', // how do we support this...?
  64                 'num_rows'                      => 'pg_num_rows',
  65                 'affected_rows'         => 'pg_affected_rows'
  66         );
  67
  68         /**
  69         * Port number to connect to
  70         * @var  integer
  71         * @access       private
  72         */
  73         var $port = 5432;
  74
  75         // ###################################################################
  76         /**
  77         * Constructor
  78         */
  79         function __construct(&$registry)
  80         {
  81                 parent::__construct($registry);
  82         }
  83
  84         // ###################################################################
  85         /**
  86         * (PHP 4) Constructor
  87         */
  88         function DB_PostgreSQL(&$registry)
  89         {
  90                 $this->__construct($registry);
  91         }
  92
  93         // ###################################################################
  94         /**
  95         * Sets the PGSQL port number
  96         *
  97         * @access       public
  98         *
  99         * @param        integer The port number
 100         */
 101         function setPort($port)
 102         {
 103                 $this->port = $port;
 104         }
 105
 106         // ###################################################################
 107         /**
 108         * Gets the currently-set port number
 109         *
 110         * @access       public
 111         *
 112         * @return       integer The port number
 113         */
 114         function getPort()
 115         {
 116                 return $this->port;
 117         }
 118
 119         // ###################################################################
 120         /**
 121         * Wrapper: pg_connect
 122         *
 123         * @access       protected
 124         *
 125         * @param        string  Server name
 126         * @param        string  User name
 127         * @param        string  Password
 128         * @param        string  Database
 129         *
 130         * @return       integer DB-Link
 131         */
 132         function command_pg_connect($server, $user, $password, $database)
 133         {
 134                 return pg_connect("host='$server' port={$this->port} user='$user' password='$password' dbname='$database'");
 135         }
 136
 137         // ###################################################################
 138         /**
 139         * Wrapper: pg_pconnect
 140         *
 141         * @access       protected
 142         *
 143         * @param        string  Server name
 144         * @param        string  User name
 145         * @param        string  Password
 146         * @param        string  Database
 147         *
 148         * @return       integer DB-Link
 149         */
 150         function command_pg_pconnect($server, $user, $password, $database)
 151         {
 152                 return pg_pconnect("host='$server' port={$this->port} user='$user' password='$password' dbname='$database'");
 153         }
 154
 155         // ###################################################################
 156         /**
 157         * Wrapper: pg_escape_string
 158         *
 159         * @access       protected
 160         *
 161         * @param        integer DB-Link (unused)
 162         * @param        string  Raw string
 163         *
 164         * @return       string  Escaped string
 165         */
 166         function command_pg_escape_string($link, $string)
 167         {
 168                 return pg_escape_string($string);
 169         }
 170
 171         // ###################################################################
 172         /**
 173         * Wrapper/no support: error string
 174         *
 175         * @access       protected
 176         *
 177         * @param        integer DB-Link
 178         *
 179         * @return       string  Error string
 180         */
 181         function command_error_str($link)
 182         {
 183                 if ($this->result)
 184                 {
 185                         return pg_result_error($this->result);
 186                 }
 187
 188                 return pg_last_error($link);
 189         }
 190
 191         // ###################################################################
 192         /**
 193         * Not supported: error numbers
 194         *
 195         * @access       protected
 196         *
 197         * @param        integer DB-Link
 198         *
 199         * @return       integer Returns -1 always
 200         */
 201         function command_error_num($link)
 202         {
 203                 return -1;
 204         }
 205
 206         // ###################################################################
 207         /**
 208         * Overload: insert_id
 209         *
 210         * @access       public
 211         *
 212         * @param        string  Table name
 213         * @param        string  Auto-up field
 214         *
 215         * @return       integer Insert ID
 216         */
 217         function insert_id($table, $field)
 218         {
 219                 $temp = $this->query_first("SELECT last_value FROM {$table}_{$field}_seq");
 220                 return $temp['last_value'];
 221         }
 222
 223         // ###################################################################
 224         /**
 225         * Starts a database transaction
 226         *
 227         * @access       public
 228         */
 229         function transaction_start()
 230         {
 231                 $this->query("BEGIN");
 232         }
 233
 234         // ###################################################################
 235         /**
 236         * Saves current transaction steps as a savepoint
 237         *
 238         * @access       public
 239         *
 240         * @param        string  Named savepoint
 241         */
 242         function transaction_savepoint($name)
 243         {
 244                 $this->query("SAVEPOINT $name");
 245         }
 246
 247         // ###################################################################
 248         /**
 249         * Reverts a transaction back to a given savepoint
 250         *
 251         * @access       public
 252         *
 253         * @param        string  Named savepoint
 254         */
 255         function transaction_rollback($name = null)
 256         {
 257                 $this->query("ROLLBACK" . ($name != null ? " TO $name" : ""));
 258         }
 259
 260         // ###################################################################
 261         /**
 262         * Commits a database transaction
 263         *
 264         * @access       public
 265         */
 266         function transaction_commit()
 267         {
 268                 $this->query("COMMIT");
 269         }
 270 }
 271
 272 /*=====================================================================*\
 273 || ###################################################################
 274 || # $HeadURL$
 275 || # $Id$
 276 || ###################################################################
 277 \*=====================================================================*/
 278 ?>