phpBB2/db/mysql4.php

   1 <?php
   2 /***************************************************************************
   3  *                                 mysql4.php
   4  *                            -------------------
   5  *   begin                : Saturday, Feb 13, 2001
   6  *   copyright            : (C) 2001 The phpBB Group
   7  *   email                : supportphpbb.com
   8  *
   9  *   $Id: mysql4.php,v 1.5.2.1 2005/09/18 16:17:20 acydburn Exp $
  10  *
  11  ***************************************************************************/
  12
  13 /***************************************************************************
  14  *
  15  *   This program is free software; you can redistribute it and/or modify
  16  *   it under the terms of the GNU General Public License as published by
  17  *   the Free Software Foundation; either version 2 of the License, or
  18  *   (at your option) any later version.
  19  *
  20  ***************************************************************************/
  21
  22 if(!defined("SQL_LAYER"))
  23 {
  24
  25 define("SQL_LAYER","mysql4");
  26
  27 class sql_db
  28 {
  29
  30         var $db_connect_id;
  31         var $query_result;
  32         var $row = array();
  33         var $rowset = array();
  34         var $num_queries = 0;
  35         var $in_transaction = 0;
  36
  37         //
  38         // Constructor
  39         //
  40         function sql_db($sqlserver, $sqluser, $sqlpassword, $database, $persistency = true)
  41         {
  42                 $this->persistency = $persistency;
  43                 $this->user = $sqluser;
  44                 $this->password = $sqlpassword;
  45                 $this->server = $sqlserver;
  46                 $this->dbname = $database;
  47
  48                 $this->db_connect_id = ($this->persistency) ? mysql_pconnect($this->server, $this->user, $this->password) : mysql_connect($this->server, $this->user, $this->password);
  49
  50                 if( $this->db_connect_id )
  51                 {
  52                         if( $database != "" )
  53                         {
  54                                 $this->dbname = $database;
  55                                 $dbselect = mysql_select_db($this->dbname);
  56
  57                                 if( !$dbselect )
  58                                 {
  59                                         mysql_close($this->db_connect_id);
  60                                         $this->db_connect_id = $dbselect;
  61                                 }
  62                         }
  63
  64                         return $this->db_connect_id;
  65                 }
  66                 else
  67                 {
  68                         return false;
  69                 }
  70         }
  71
  72         //
  73         // Other base methods
  74         //
  75         function sql_close()
  76         {
  77                 if( $this->db_connect_id )
  78                 {
  79                         //
  80                         // Commit any remaining transactions
  81                         //
  82                         if( $this->in_transaction )
  83                         {
  84                                 mysql_query("COMMIT", $this->db_connect_id);
  85                         }
  86
  87                         return mysql_close($this->db_connect_id);
  88                 }
  89                 else
  90                 {
  91                         return false;
  92                 }
  93         }
  94
  95         //
  96         // Base query method
  97         //
  98         function sql_query($query = "", $transaction = FALSE)
  99         {
 100                 //
 101                 // Remove any pre-existing queries
 102                 //
 103                 unset($this->query_result);
 104
 105                 if( $query != "" )
 106                 {
 107                         $this->num_queries++;
 108                         if( $transaction == BEGIN_TRANSACTION && !$this->in_transaction )
 109                         {
 110                                 $result = mysql_query("BEGIN", $this->db_connect_id);
 111                                 if(!$result)
 112                                 {
 113                                         return false;
 114                                 }
 115                                 $this->in_transaction = TRUE;
 116                         }
 117
 118                         $this->query_result = mysql_query($query, $this->db_connect_id);
 119                 }
 120                 else
 121                 {
 122                         if( $transaction == END_TRANSACTION && $this->in_transaction )
 123                         {
 124                                 $result = mysql_query("COMMIT", $this->db_connect_id);
 125                         }
 126                 }
 127
 128                 if( $this->query_result )
 129                 {
 130                         unset($this->row[$this->query_result]);
 131                         unset($this->rowset[$this->query_result]);
 132
 133                         if( $transaction == END_TRANSACTION && $this->in_transaction )
 134                         {
 135                                 $this->in_transaction = FALSE;
 136
 137                                 if ( !mysql_query("COMMIT", $this->db_connect_id) )
 138                                 {
 139                                         mysql_query("ROLLBACK", $this->db_connect_id);
 140                                         return false;
 141                                 }
 142                         }
 143
 144                         return $this->query_result;
 145                 }
 146                 else
 147                 {
 148                         if( $this->in_transaction )
 149                         {
 150                                 mysql_query("ROLLBACK", $this->db_connect_id);
 151                                 $this->in_transaction = FALSE;
 152                         }
 153                         return false;
 154                 }
 155         }
 156
 157         //
 158         // Other query methods
 159         //
 160         function sql_numrows($query_id = 0)
 161         {
 162                 if( !$query_id )
 163                 {
 164                         $query_id = $this->query_result;
 165                 }
 166
 167                 return ( $query_id ) ? mysql_num_rows($query_id) : false;
 168         }
 169
 170         function sql_affectedrows()
 171         {
 172                 return ( $this->db_connect_id ) ? mysql_affected_rows($this->db_connect_id) : false;
 173         }
 174
 175         function sql_numfields($query_id = 0)
 176         {
 177                 if( !$query_id )
 178                 {
 179                         $query_id = $this->query_result;
 180                 }
 181
 182                 return ( $query_id ) ? mysql_num_fields($query_id) : false;
 183         }
 184
 185         function sql_fieldname($offset, $query_id = 0)
 186         {
 187                 if( !$query_id )
 188                 {
 189                         $query_id = $this->query_result;
 190                 }
 191
 192                 return ( $query_id ) ? mysql_field_name($query_id, $offset) : false;
 193         }
 194
 195         function sql_fieldtype($offset, $query_id = 0)
 196         {
 197                 if( !$query_id )
 198                 {
 199                         $query_id = $this->query_result;
 200                 }
 201
 202                 return ( $query_id ) ? mysql_field_type($query_id, $offset) : false;
 203         }
 204
 205         function sql_fetchrow($query_id = 0)
 206         {
 207                 if( !$query_id )
 208                 {
 209                         $query_id = $this->query_result;
 210                 }
 211
 212                 if( $query_id )
 213                 {
 214                         $this->row[$query_id] = mysql_fetch_array($query_id, MYSQL_ASSOC);
 215                         return $this->row[$query_id];
 216                 }
 217                 else
 218                 {
 219                         return false;
 220                 }
 221         }
 222
 223         function sql_fetchrowset($query_id = 0)
 224         {
 225                 if( !$query_id )
 226                 {
 227                         $query_id = $this->query_result;
 228                 }
 229
 230                 if( $query_id )
 231                 {
 232                         unset($this->rowset[$query_id]);
 233                         unset($this->row[$query_id]);
 234
 235                         while($this->rowset[$query_id] = mysql_fetch_array($query_id, MYSQL_ASSOC))
 236                         {
 237                                 $result[] = $this->rowset[$query_id];
 238                         }
 239
 240                         return $result;
 241                 }
 242                 else
 243                 {
 244                         return false;
 245                 }
 246         }
 247
 248         function sql_fetchfield($field, $rownum = -1, $query_id = 0)
 249         {
 250                 if( !$query_id )
 251                 {
 252                         $query_id = $this->query_result;
 253                 }
 254
 255                 if( $query_id )
 256                 {
 257                         if( $rownum > -1 )
 258                         {
 259                                 $result = mysql_result($query_id, $rownum, $field);
 260                         }
 261                         else
 262                         {
 263                                 if( empty($this->row[$query_id]) && empty($this->rowset[$query_id]) )
 264                                 {
 265                                         if( $this->sql_fetchrow() )
 266                                         {
 267                                                 $result = $this->row[$query_id][$field];
 268                                         }
 269                                 }
 270                                 else
 271                                 {
 272                                         if( $this->rowset[$query_id] )
 273                                         {
 274                                                 $result = $this->rowset[$query_id][0][$field];
 275                                         }
 276                                         else if( $this->row[$query_id] )
 277                                         {
 278                                                 $result = $this->row[$query_id][$field];
 279                                         }
 280                                 }
 281                         }
 282
 283                         return $result;
 284                 }
 285                 else
 286                 {
 287                         return false;
 288                 }
 289         }
 290
 291         function sql_rowseek($rownum, $query_id = 0)
 292         {
 293                 if( !$query_id )
 294                 {
 295                         $query_id = $this->query_result;
 296                 }
 297
 298                 return ( $query_id ) ? mysql_data_seek($query_id, $rownum) : false;
 299         }
 300
 301         function sql_nextid()
 302         {
 303                 return ( $this->db_connect_id ) ? mysql_insert_id($this->db_connect_id) : false;
 304         }
 305
 306         function sql_freeresult($query_id = 0)
 307         {
 308                 if( !$query_id )
 309                 {
 310                         $query_id = $this->query_result;
 311                 }
 312
 313                 if ( $query_id )
 314                 {
 315                         unset($this->row[$query_id]);
 316                         unset($this->rowset[$query_id]);
 317
 318                         mysql_free_result($query_id);
 319
 320                         return true;
 321                 }
 322                 else
 323                 {
 324                         return false;
 325                 }
 326         }
 327
 328         function sql_error()
 329         {
 330                 $result['message'] = mysql_error($this->db_connect_id);
 331                 $result['code'] = mysql_errno($this->db_connect_id);
 332
 333                 return $result;
 334         }
 335
 336 } // class sql_db
 337
 338 } // if ... define
 339
 340 ?>