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1 <?php 2 /*************************************************************************** 3 * mssql-odbc.php 4 * ------------------- 5 * begin : Saturday, Feb 13, 2001 6 * copyright : (C) 2001 The phpBB Group 7 * email : support@phpbb.com 8 * 9 * $Id: mssql-odbc.php 2380 2002-03-20 17:48:30Z psotfx $ 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","mssql-odbc"); 26 27 class sql_db 28 { 29 30 var $db_connect_id; 31 var $result; 32 33 var $next_id; 34 35 var $num_rows = array(); 36 var $current_row = array(); 37 var $field_names = array(); 38 var $field_types = array(); 39 var $result_rowset = array(); 40 41 var $num_queries = 0; 42 43 // 44 // Constructor 45 // 46 function sql_db($sqlserver, $sqluser, $sqlpassword, $database, $persistency = true) 47 { 48 $this->persistency = $persistency; 49 $this->server = $sqlserver; 50 $this->user = $sqluser; 51 $this->password = $sqlpassword; 52 $this->dbname = $database; 53 54 $this->db_connect_id = ($this->persistency) ? odbc_pconnect($this->server, $this->user, $this->password) : odbc_connect($this->server, $this->user, $this->password); 55 56 return ( $this->db_connect_id ) ? $this->db_connect_id : false; 57 } 58 // 59 // Other base methods 60 // 61 function sql_close() 62 { 63 if($this->db_connect_id) 64 { 65 if( $this->in_transaction ) 66 { 67 @odbc_commit($this->db_connect_id); 68 } 69 70 if( count($this->result_rowset) ) 71 { 72 unset($this->result_rowset); 73 unset($this->field_names); 74 unset($this->field_types); 75 unset($this->num_rows); 76 unset($this->current_row); 77 } 78 79 return @odbc_close($this->db_connect_id); 80 } 81 else 82 { 83 return false; 84 } 85 } 86 87 // 88 // Query method 89 // 90 function sql_query($query = "", $transaction = FALSE) 91 { 92 if( $query != "" ) 93 { 94 $this->num_queries++; 95 96 if( $transaction == BEGIN_TRANSACTION && !$this->in_transaction ) 97 { 98 if( !odbc_autocommit($this->db_connect_id, false) ) 99 { 100 return false; 101 } 102 $this->in_transaction = TRUE; 103 } 104 105 if( preg_match("/^SELECT(.*?)(LIMIT ([0-9]+)[, ]*([0-9]+)*)?$/s", $query, $limits) ) 106 { 107 $query = $limits[1]; 108 109 if( !empty($limits[2]) ) 110 { 111 $row_offset = ( $limits[4] ) ? $limits[3] : ""; 112 $num_rows = ( $limits[4] ) ? $limits[4] : $limits[3]; 113 114 $query = "TOP " . ( $row_offset + $num_rows ) . $query; 115 } 116 117 $this->result = odbc_exec($this->db_connect_id, "SELECT $query"); 118 119 if( $this->result ) 120 { 121 if( empty($this->field_names[$this->result]) ) 122 { 123 for($i = 1; $i < odbc_num_fields($this->result) + 1; $i++) 124 { 125 $this->field_names[$this->result][] = odbc_field_name($this->result, $i); 126 $this->field_types[$this->result][] = odbc_field_type($this->result, $i); 127 } 128 } 129 130 $this->current_row[$this->result] = 0; 131 $this->result_rowset[$this->result] = array(); 132 133 $row_outer = ( isset($row_offset) ) ? $row_offset + 1 : 1; 134 $row_outer_max = ( isset($num_rows) ) ? $row_offset + $num_rows + 1 : 1E9; 135 $row_inner = 0; 136 137 while( odbc_fetch_row($this->result, $row_outer) && $row_outer < $row_outer_max ) 138 { 139 for($j = 0; $j < count($this->field_names[$this->result]); $j++) 140 { 141 $this->result_rowset[$this->result][$row_inner][$this->field_names[$this->result][$j]] = stripslashes(odbc_result($this->result, $j + 1)); 142 } 143 144 $row_outer++; 145 $row_inner++; 146 } 147 148 $this->num_rows[$this->result] = count($this->result_rowset[$this->result]); 149 } 150 151 } 152 else if( eregi("^INSERT ", $query) ) 153 { 154 $this->result = odbc_exec($this->db_connect_id, $query); 155 156 if( $this->result ) 157 { 158 $result_id = odbc_exec($this->db_connect_id, "SELECT @@IDENTITY"); 159 if( $result_id ) 160 { 161 if( odbc_fetch_row($result_id) ) 162 { 163 $this->next_id[$this->db_connect_id] = odbc_result($result_id, 1); 164 $this->affected_rows[$this->db_connect_id] = odbc_num_rows($this->result); 165 } 166 } 167 } 168 } 169 else 170 { 171 $this->result = odbc_exec($this->db_connect_id, $query); 172 173 if( $this->result ) 174 { 175 $this->affected_rows[$this->db_connect_id] = odbc_num_rows($this->result); 176 } 177 } 178 179 if( !$this->result ) 180 { 181 if( $this->in_transaction ) 182 { 183 odbc_rollback($this->db_connect_id); 184 odbc_autocommit($this->db_connect_id, true); 185 $this->in_transaction = FALSE; 186 } 187 188 return false; 189 } 190 191 if( $transaction == END_TRANSACTION && $this->in_transaction ) 192 { 193 $this->in_transaction = FALSE; 194 195 if ( !odbc_commit($this->db_connect_id) ) 196 { 197 odbc_rollback($this->db_connect_id); 198 odbc_autocommit($this->db_connect_id, true); 199 return false; 200 } 201 odbc_autocommit($this->db_connect_id, true); 202 } 203 204 odbc_free_result($this->result); 205 206 return $this->result; 207 } 208 else 209 { 210 if( $transaction == END_TRANSACTION && $this->in_transaction ) 211 { 212 $this->in_transaction = FALSE; 213 214 if ( !@odbc_commit($this->db_connect_id) ) 215 { 216 odbc_rollback($this->db_connect_id); 217 odbc_autocommit($this->db_connect_id, true); 218 return false; 219 } 220 odbc_autocommit($this->db_connect_id, true); 221 } 222 223 return true; 224 } 225 } 226 227 // 228 // Other query methods 229 // 230 function sql_numrows($query_id = 0) 231 { 232 if( !$query_id ) 233 { 234 $query_id = $this->result; 235 } 236 237 return ( $query_id ) ? $this->num_rows[$query_id] : false; 238 } 239 240 function sql_numfields($query_id = 0) 241 { 242 if( !$query_id ) 243 { 244 $query_id = $this->result; 245 } 246 247 return ( $query_id ) ? count($this->field_names[$query_id]) : false; 248 } 249 250 function sql_fieldname($offset, $query_id = 0) 251 { 252 if( !$query_id ) 253 { 254 $query_id = $this->result; 255 } 256 257 return ( $query_id ) ? $this->field_names[$query_id][$offset] : false; 258 } 259 260 function sql_fieldtype($offset, $query_id = 0) 261 { 262 if( !$query_id ) 263 { 264 $query_id = $this->result; 265 } 266 267 return ( $query_id ) ? $this->field_types[$query_id][$offset] : false; 268 } 269 270 function sql_fetchrow($query_id = 0) 271 { 272 if( !$query_id ) 273 { 274 $query_id = $this->result; 275 } 276 277 if( $query_id ) 278 { 279 return ( $this->num_rows[$query_id] && $this->current_row[$query_id] < $this->num_rows[$query_id] ) ? $this->result_rowset[$query_id][$this->current_row[$query_id]++] : false; 280 } 281 else 282 { 283 return false; 284 } 285 } 286 287 function sql_fetchrowset($query_id = 0) 288 { 289 if( !$query_id ) 290 { 291 $query_id = $this->result; 292 } 293 294 if( $query_id ) 295 { 296 return ( $this->num_rows[$query_id] ) ? $this->result_rowset[$query_id] : false; 297 } 298 else 299 { 300 return false; 301 } 302 } 303 304 function sql_fetchfield($field, $row = -1, $query_id = 0) 305 { 306 if( !$query_id ) 307 { 308 $query_id = $this->result; 309 } 310 311 if( $query_id ) 312 { 313 if( $row < $this->num_rows[$query_id] ) 314 { 315 $getrow = ( $row == -1 ) ? $this->current_row[$query_id] - 1 : $row; 316 317 return $this->result_rowset[$query_id][$getrow][$this->field_names[$query_id][$field]]; 318 319 } 320 else 321 { 322 return false; 323 } 324 } 325 else 326 { 327 return false; 328 } 329 } 330 331 function sql_rowseek($offset, $query_id = 0) 332 { 333 if( !$query_id ) 334 { 335 $query_id = $this->result; 336 } 337 338 if( $query_id ) 339 { 340 $this->current_row[$query_id] = $offset - 1; 341 return true; 342 } 343 else 344 { 345 return false; 346 } 347 } 348 349 function sql_nextid() 350 { 351 return ( $this->next_id[$this->db_connect_id] ) ? $this->next_id[$this->db_connect_id] : false; 352 } 353 354 function sql_affectedrows() 355 { 356 return ( $this->affected_rows[$this->db_connect_id] ) ? $this->affected_rows[$this->db_connect_id] : false; 357 } 358 359 function sql_freeresult($query_id = 0) 360 { 361 if( !$query_id ) 362 { 363 $query_id = $this->result; 364 } 365 366 unset($this->num_rows[$query_id]); 367 unset($this->current_row[$query_id]); 368 unset($this->result_rowset[$query_id]); 369 unset($this->field_names[$query_id]); 370 unset($this->field_types[$query_id]); 371 372 return true; 373 } 374 375 function sql_error() 376 { 377 $error['code'] = odbc_error($this->db_connect_id); 378 $error['message'] = odbc_errormsg($this->db_connect_id); 379 380 return $error; 381 } 382 383 } // class sql_db 384 385 } // if ... define 386 387 ?>
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| Generated: Mon Jan 14 19:21:40 2013 | Cross-referenced by PHPXref 0.7.1 |