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0337d704 | 1 | <?php |
2 | /*************************************************************************** | |
2ab75571 | 3 | * Copyright (C) 2003-2010 Polytechnique.org * |
0337d704 | 4 | * http://opensource.polytechnique.org/ * |
5 | * * | |
6 | * This program is free software; you can redistribute it and/or modify * | |
7 | * it under the terms of the GNU General Public License as published by * | |
8 | * the Free Software Foundation; either version 2 of the License, or * | |
9 | * (at your option) any later version. * | |
10 | * * | |
11 | * This program is distributed in the hope that it will be useful, * | |
12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of * | |
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * | |
14 | * GNU General Public License for more details. * | |
15 | * * | |
16 | * You should have received a copy of the GNU General Public License * | |
17 | * along with this program; if not, write to the Free Software * | |
18 | * Foundation, Inc., * | |
19 | * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA * | |
20 | **************************************************************************/ | |
21 | ||
08cce2ff | 22 | class XDB |
0337d704 | 23 | { |
32d9ae72 | 24 | private static $mysqli = null; |
25 | ||
821744e0 | 26 | public static function connect() |
32d9ae72 | 27 | { |
821744e0 | 28 | global $globals; |
e4f6c7d0 | 29 | self::$mysqli = new mysqli($globals->dbhost, $globals->dbuser, $globals->dbpwd, $globals->dbdb); |
81e9c63f | 30 | if ($globals->debug & DEBUG_BT) { |
d3f26be9 | 31 | $bt = new PlBacktrace('MySQL'); |
32 | if (mysqli_connect_errno()) { | |
33 | $bt->newEvent("MySQLI connection", 0, mysqli_connect_error()); | |
34 | return false; | |
35 | } | |
32d9ae72 | 36 | } |
e4f6c7d0 FB |
37 | self::$mysqli->autocommit(true); |
38 | self::$mysqli->set_charset($globals->dbcharset); | |
32d9ae72 | 39 | return true; |
40 | } | |
f1ca33de | 41 | |
cd1d4b4f | 42 | public static function prepare($args) |
ed3f4d3e | 43 | { |
4d6eeacc | 44 | global $globals; |
f62bd784 | 45 | $query = array_map(Array('XDB', 'escape'), $args); |
f3e3cab8 | 46 | $query[0] = preg_replace('/#([a-z0-9]+)#/', $globals->dbprefix . '$1', $args[0]); |
4d6eeacc VZ |
47 | $query[0] = str_replace('%', '%%', $query[0]); |
48 | $query[0] = str_replace('{?}', '%s', $query[0]); | |
0337d704 | 49 | return call_user_func_array('sprintf', $query); |
50 | } | |
13a25546 | 51 | |
cd1d4b4f | 52 | public static function reformatQuery($query) |
7c571120 | 53 | { |
a4f89886 | 54 | $query = preg_split("/\n\\s*/", trim($query)); |
7c571120 | 55 | $length = 0; |
d3c52d30 | 56 | foreach ($query as $key=>$line) { |
57 | $local = -2; | |
a14159bf | 58 | if (preg_match('/^([A-Z]+(?:\s+(?:JOIN|BY|FROM|INTO))?)\s+(.*)/u', $line, $matches) |
85d3b330 | 59 | && $matches[1] != 'AND' && $matches[1] != 'OR') |
60 | { | |
d3c52d30 | 61 | $local = strlen($matches[1]); |
62 | $line = $matches[1] . ' ' . $matches[2]; | |
63 | $length = max($length, $local); | |
7c571120 | 64 | } |
d3c52d30 | 65 | $query[$key] = array($line, $local); |
7c571120 | 66 | } |
67 | $res = ''; | |
d3c52d30 | 68 | foreach ($query as $array) { |
69 | list($line, $local) = $array; | |
9630c649 | 70 | $local = max(0, $length - $local); |
7c571120 | 71 | $res .= str_repeat(' ', $local) . $line . "\n"; |
72 | $length += 2 * (substr_count($line, '(') - substr_count($line, ')')); | |
73 | } | |
74 | return $res; | |
75 | } | |
76 | ||
cd1d4b4f | 77 | public static function run($query) |
ed3f4d3e | 78 | { |
f1ca33de | 79 | global $globals; |
80 | ||
e4f6c7d0 | 81 | if (!self::$mysqli && !self::connect()) { |
12ccfec7 | 82 | header($_SERVER['SERVER_PROTOCOL'] . ' 500 Internal Server Error'); |
084a60da FB |
83 | Platal::page()->kill('Impossible de se connecter à la base de données.'); |
84 | exit; | |
821744e0 | 85 | } |
86 | ||
81e9c63f | 87 | if ($globals->debug & DEBUG_BT) { |
f1ca33de | 88 | $explain = array(); |
e49b22c0 | 89 | if (strpos($query, 'FOUND_ROWS()') === false && strpos($query, 'AUTOCOMMIT') === false) { |
e4f6c7d0 | 90 | $res = self::$mysqli->query("EXPLAIN $query"); |
32d9ae72 | 91 | if ($res) { |
92 | while ($row = $res->fetch_assoc()) { | |
5fb22b39 | 93 | $explain[] = $row; |
94 | } | |
32d9ae72 | 95 | $res->free(); |
5fb22b39 | 96 | } |
f1ca33de | 97 | } |
cd1d4b4f | 98 | PlBacktrace::$bt['MySQL']->start(XDB::reformatQuery($query)); |
f1ca33de | 99 | } |
100 | ||
32d9ae72 | 101 | $res = XDB::$mysqli->query($query); |
0381e170 | 102 | |
81e9c63f | 103 | if ($globals->debug & DEBUG_BT) { |
e4f6c7d0 FB |
104 | PlBacktrace::$bt['MySQL']->stop(@$res->num_rows ? $res->num_rows : self::$mysqli->affected_rows, |
105 | self::$mysqli->error, | |
d3f26be9 | 106 | $explain); |
f1ca33de | 107 | } |
084a60da FB |
108 | |
109 | if ($res === false) { | |
cd1d4b4f | 110 | throw new XDBException(XDB::reformatQuery($query), XDB::$mysqli->error); |
084a60da | 111 | } |
f1ca33de | 112 | return $res; |
113 | } | |
114 | ||
e4f6c7d0 FB |
115 | private static function queryv($query) |
116 | { | |
cd1d4b4f | 117 | return new XDBResult(self::prepare($query)); |
e4f6c7d0 FB |
118 | } |
119 | ||
6995a9b9 | 120 | public static function query() |
0337d704 | 121 | { |
e4f6c7d0 | 122 | return self::queryv(func_get_args()); |
0337d704 | 123 | } |
124 | ||
4c455d70 FB |
125 | public static function rawQuery($query) |
126 | { | |
127 | return new XDBResult($query); | |
128 | } | |
129 | ||
20973bf8 FB |
130 | public static function format() |
131 | { | |
cd1d4b4f | 132 | return self::prepare(func_get_args()); |
20973bf8 FB |
133 | } |
134 | ||
0ef5bd4b FB |
135 | // Produce the SQL statement for setting/unsetting a flag |
136 | public static function changeFlag($fieldname, $flagname, $state) | |
137 | { | |
138 | if ($state) { | |
139 | return XDB::format($fieldname . ' = CONCAT({?}, \',\', ' . $fieldname . ')', $flagname); | |
140 | } else { | |
141 | return XDB::format($fieldname . ' = REPLACE(' . $fieldname . ', {?}, \'\')', $flagname); | |
142 | } | |
143 | } | |
144 | ||
145 | // Produce the SQL statement representing an array | |
146 | public static function formatArray(array $array) | |
147 | { | |
e677bc13 | 148 | return self::escape($array); |
0ef5bd4b FB |
149 | } |
150 | ||
adf947ff RB |
151 | const WILDCARD_EXACT = 0x00; |
152 | const WILDCARD_PREFIX = 0x01; | |
153 | const WILDCARD_SUFFIX = 0x02; | |
154 | const WILDCARD_CONTAINS = 0x03; // WILDCARD_PREFIX | WILDCARD_SUFFIX | |
155 | ||
cd1d4b4f FB |
156 | // Produce a valid XDB argument that get formatted as a wildcard |
157 | // according to the given mode. | |
158 | // | |
159 | // Example: | |
160 | // XDB::query("SELECT * FROM table WHERE field {?}", XDB::wildcard($text, WILDCARD_EXACT)); | |
161 | public static function wildcard($mode, $value) | |
162 | { | |
163 | return new XDBWildcard($value, $mode); | |
164 | } | |
165 | ||
adf947ff RB |
166 | // Returns the SQL statement for a wildcard search. |
167 | public static function formatWildcards($mode, $text) | |
168 | { | |
cd1d4b4f | 169 | return XDB::wildcard($mode, $text)->format(); |
adf947ff RB |
170 | } |
171 | ||
47595f9a RB |
172 | // Returns a FIELD(blah, 3, 1, 2) for use in an order with custom orders |
173 | public static function formatCustomOrder($field, $values) | |
174 | { | |
29bd16df | 175 | return 'FIELD( ' . $field . ', ' . implode(', ', array_map(array('XDB', 'escape'), $values)) . ')'; |
47595f9a RB |
176 | } |
177 | ||
6995a9b9 | 178 | public static function execute() |
f1ca33de | 179 | { |
fe556813 FB |
180 | global $globals; |
181 | $args = func_get_args(); | |
182 | if ($globals->mode != 'rw' && !strpos($args[0], 'logger')) { | |
183 | return; | |
184 | } | |
cd1d4b4f | 185 | return self::run(XDB::prepare($args)); |
0337d704 | 186 | } |
13a25546 | 187 | |
4c455d70 FB |
188 | public static function rawExecute($query) |
189 | { | |
190 | global $globals; | |
191 | if ($globals->mode != 'rw') { | |
192 | return; | |
193 | } | |
194 | return self::run($query); | |
195 | } | |
196 | ||
e49b22c0 FB |
197 | public static function startTransaction() |
198 | { | |
199 | self::rawExecute('SET AUTOCOMMIT = 0'); | |
200 | self::rawExecute('START TRANSACTION'); | |
201 | } | |
202 | ||
203 | public static function commit() | |
204 | { | |
205 | self::rawExecute('COMMIT'); | |
206 | self::rawExecute('SET AUTOCOMMIT = 1'); | |
207 | } | |
208 | ||
209 | public static function rollback() | |
210 | { | |
211 | self::rawExecute('ROLLBACK'); | |
212 | self::rawExecute('SET AUTOCOMMIT = 1'); | |
213 | } | |
214 | ||
f23d33e1 FB |
215 | public static function runTransactionV($callback, array $args) |
216 | { | |
217 | self::startTransaction(); | |
218 | try { | |
219 | if (call_user_func_array($callback, $args)) { | |
220 | self::commit(); | |
221 | return true; | |
222 | } else { | |
223 | self::rollback(); | |
224 | return false; | |
225 | } | |
226 | } catch (Exception $e) { | |
227 | self::rollback(); | |
228 | throw $e; | |
229 | } | |
230 | } | |
231 | ||
232 | /** This function takes a callback followed by the arguments to be passed to the callback | |
233 | * as arguments. It starts a transaction and execute the callback. If the callback fails | |
234 | * (return false or raise an exception), the transaction is rollbacked, if the callback | |
235 | * succeeds (return true), the transaction is committed. | |
236 | */ | |
237 | public static function runTransaction() | |
238 | { | |
239 | $args = func_get_args(); | |
240 | $cb = array_shift($args); | |
241 | self::runTransactionV($cb, $args); | |
242 | } | |
243 | ||
6995a9b9 | 244 | public static function iterator() |
0337d704 | 245 | { |
cd1d4b4f | 246 | return new XDBIterator(self::prepare(func_get_args())); |
0337d704 | 247 | } |
13a25546 | 248 | |
4c455d70 FB |
249 | public static function rawIterator($query) |
250 | { | |
251 | return new XDBIterator($query); | |
252 | } | |
253 | ||
6995a9b9 | 254 | public static function iterRow() |
0337d704 | 255 | { |
cd1d4b4f | 256 | return new XDBIterator(self::prepare(func_get_args()), MYSQL_NUM); |
e4f6c7d0 FB |
257 | } |
258 | ||
4c455d70 FB |
259 | public static function rawIterRow($query) |
260 | { | |
261 | return new XDBIterator($query, MYSQL_NUM); | |
262 | } | |
263 | ||
e4f6c7d0 FB |
264 | private static function findQuery($params, $default = array()) |
265 | { | |
266 | for ($i = 0 ; $i < count($default) ; ++$i) { | |
267 | $is_query = false; | |
268 | foreach (array('insert', 'select', 'replace', 'delete', 'update') as $kwd) { | |
269 | if (stripos($params[0], $kwd) !== false) { | |
270 | $is_query = true; | |
271 | break; | |
272 | } | |
273 | } | |
274 | if ($is_query) { | |
275 | break; | |
276 | } else { | |
277 | $default[$i] = array_shift($params); | |
278 | } | |
279 | } | |
280 | return array($default, $params); | |
281 | } | |
282 | ||
283 | /** Fetch all rows returned by the given query. | |
cd1d4b4f | 284 | * This functions can take 2 optional arguments (cf XDBResult::fetchAllRow()). |
e4f6c7d0 FB |
285 | * Optional arguments are given *before* the query. |
286 | */ | |
287 | public static function fetchAllRow() | |
288 | { | |
289 | list($args, $query) = self::findQuery(func_get_args(), array(false, false)); | |
290 | return self::queryv($query)->fetchAllRow($args[0], $args[1]); | |
291 | } | |
292 | ||
dec6c3bd FB |
293 | public static function rawFetchAllRow($query, $id = false, $keep_array = false) |
294 | { | |
295 | return self::rawQuery($query)->fetchAllRow($id, $keep_array); | |
296 | } | |
297 | ||
e4f6c7d0 | 298 | /** Fetch all rows returned by the given query. |
cd1d4b4f | 299 | * This functions can take 2 optional arguments (cf XDBResult::fetchAllAssoc()). |
e4f6c7d0 FB |
300 | * Optional arguments are given *before* the query. |
301 | */ | |
302 | public static function fetchAllAssoc() | |
303 | { | |
304 | list($args, $query) = self::findQuery(func_get_args(), array(false, false)); | |
305 | return self::queryv($query)->fetchAllAssoc($args[0], $args[1]); | |
306 | } | |
307 | ||
dec6c3bd FB |
308 | public static function rawFetchAllAssoc($query, $id = false, $keep_array = false) |
309 | { | |
310 | return self::rawQuery($query)->fetchAllAssoc($id, $keep_array); | |
311 | } | |
312 | ||
e4f6c7d0 FB |
313 | public static function fetchOneCell() |
314 | { | |
315 | list($args, $query) = self::findQuery(func_get_args()); | |
316 | return self::queryv($query)->fetchOneCell(); | |
317 | } | |
318 | ||
dec6c3bd FB |
319 | public static function rawFetchOneCell($query) |
320 | { | |
321 | return self::rawQuery($query)->fetchOneCell(); | |
322 | } | |
323 | ||
e4f6c7d0 FB |
324 | public static function fetchOneRow() |
325 | { | |
326 | list($args, $query) = self::findQuery(func_get_args()); | |
327 | return self::queryv($query)->fetchOneRow(); | |
328 | } | |
329 | ||
dec6c3bd FB |
330 | public static function rawFetchOneRow($query) |
331 | { | |
332 | return self::rawQuery($query)->fetchOneRow(); | |
333 | } | |
334 | ||
e4f6c7d0 FB |
335 | public static function fetchOneAssoc() |
336 | { | |
337 | list($args, $query) = self::findQuery(func_get_args()); | |
338 | return self::queryv($query)->fetchOneAssoc(); | |
339 | } | |
340 | ||
dec6c3bd FB |
341 | public static function rawFetchOneAssoc($query) |
342 | { | |
343 | return self::rawQuery($query)->fetchOneAssoc(); | |
344 | } | |
345 | ||
e4f6c7d0 | 346 | /** Fetch a column from the result of the given query. |
cd1d4b4f | 347 | * This functions can take 1 optional arguments (cf XDBResult::fetchColumn()). |
e4f6c7d0 FB |
348 | * Optional arguments are given *before* the query. |
349 | */ | |
350 | public static function fetchColumn() | |
351 | { | |
352 | list($args, $query) = self::findQuery(func_get_args(), array(0)); | |
dec6c3bd FB |
353 | return self::queryv($query)->fetchColumn($args[0]); |
354 | } | |
355 | ||
356 | public static function rawFetchColumn($query, $key = 0) | |
357 | { | |
358 | return self::rawQuery($query)->fetchColumn($key); | |
0337d704 | 359 | } |
13a25546 | 360 | |
6995a9b9 | 361 | public static function insertId() |
13a25546 | 362 | { |
e4f6c7d0 | 363 | return self::$mysqli->insert_id; |
13a25546 | 364 | } |
365 | ||
0380bf85 | 366 | public static function errno() |
367 | { | |
e4f6c7d0 | 368 | return self::$mysqli->errno; |
0380bf85 | 369 | } |
370 | ||
371 | public static function error() | |
834fd0f6 | 372 | { |
e4f6c7d0 | 373 | return self::$mysqli->error; |
0380bf85 | 374 | } |
375 | ||
376 | public static function affectedRows() | |
377 | { | |
e4f6c7d0 | 378 | return self::$mysqli->affected_rows; |
0380bf85 | 379 | } |
380 | ||
f62bd784 | 381 | public static function escape($var) |
0337d704 | 382 | { |
383 | switch (gettype($var)) { | |
13a25546 | 384 | case 'boolean': |
385 | return $var ? 1 : 0; | |
386 | ||
387 | case 'integer': | |
388 | case 'double': | |
389 | case 'float': | |
390 | return $var; | |
391 | ||
392 | case 'string': | |
393 | return "'".addslashes($var)."'"; | |
394 | ||
395 | case 'NULL': | |
396 | return 'NULL'; | |
397 | ||
398 | case 'object': | |
cd1d4b4f FB |
399 | if ($var instanceof XDBFormat) { |
400 | return $var->format(); | |
e677bc13 FB |
401 | } else { |
402 | return "'".addslashes(serialize($var))."'"; | |
04c1b2eb | 403 | } |
e677bc13 | 404 | |
13a25546 | 405 | case 'array': |
e677bc13 | 406 | return '(' . implode(', ', array_map(array('XDB', 'escape'), $var)) . ')'; |
13a25546 | 407 | |
408 | default: | |
409 | die(var_export($var, true).' is not a valid for a database entry'); | |
0337d704 | 410 | } |
411 | } | |
0337d704 | 412 | } |
413 | ||
cd1d4b4f | 414 | class XDBException extends PlException |
0337d704 | 415 | { |
cd1d4b4f FB |
416 | public function __construct($query, $error) |
417 | { | |
418 | if (strpos($query, 'INSERT') === false && strpos($query, 'UPDATE') === false | |
419 | && strpos($query, 'REPLACE') === false && strpos($query, 'DELETE') === false) { | |
420 | $text = 'Erreur lors de l\'interrogation de la base de données'; | |
421 | } else { | |
422 | $text = 'Erreur lors de l\'écriture dans la base de données'; | |
423 | } | |
424 | parent::__construct($text, $query . "\n" . $error); | |
425 | } | |
426 | } | |
427 | ||
428 | interface XDBFormat | |
429 | { | |
430 | public function format(); | |
431 | } | |
0337d704 | 432 | |
cd1d4b4f FB |
433 | class XDBWildcard implements XDBFormat |
434 | { | |
435 | private $value; | |
436 | private $mode; | |
437 | ||
438 | public function __construct($value, $mode) | |
439 | { | |
440 | $this->value = $value; | |
441 | $this->mode = $mode; | |
442 | } | |
443 | ||
444 | public function format() | |
445 | { | |
446 | if ($this->mode == XDB::WILDCARD_EXACT) { | |
447 | return XDB::format(' = {?}', $this->value); | |
448 | } else { | |
449 | $text = str_replace(array('%', '_'), array('\%', '\_'), $this->value); | |
450 | if ($this->mode & XDB::WILDCARD_PREFIX) { | |
451 | $text = $text . '%'; | |
452 | } | |
453 | if ($this->mode & XDB::WILDCARD_SUFFIX) { | |
454 | $text = '%' . $text; | |
455 | } | |
456 | return XDB::format(" LIKE {?}", $text); | |
457 | } | |
458 | } | |
459 | } | |
460 | ||
461 | ||
462 | class XDBResult | |
463 | { | |
464 | private $res; | |
0337d704 | 465 | |
0381e170 | 466 | public function __construct($query) |
0337d704 | 467 | { |
cd1d4b4f | 468 | $this->res = XDB::run($query); |
0337d704 | 469 | } |
470 | ||
0381e170 | 471 | public function free() |
0337d704 | 472 | { |
cd1d4b4f FB |
473 | if ($this->res) { |
474 | $this->res->free(); | |
0381e170 | 475 | } |
0337d704 | 476 | unset($this); |
477 | } | |
478 | ||
cd1d4b4f | 479 | protected function fetchRow() |
0337d704 | 480 | { |
cd1d4b4f | 481 | return $this->res ? $this->res->fetch_row() : null; |
0337d704 | 482 | } |
483 | ||
cd1d4b4f | 484 | protected function fetchAssoc() |
0337d704 | 485 | { |
cd1d4b4f | 486 | return $this->res ? $this->res->fetch_assoc() : null; |
0337d704 | 487 | } |
488 | ||
e4f6c7d0 | 489 | public function fetchAllRow($id = false, $keep_array = false) |
0337d704 | 490 | { |
491 | $result = Array(); | |
cd1d4b4f | 492 | if (!$this->res) { |
0381e170 | 493 | return $result; |
494 | } | |
cd1d4b4f | 495 | while (($data = $this->res->fetch_row())) { |
e4f6c7d0 FB |
496 | if ($id !== false) { |
497 | $key = $data[$id]; | |
498 | unset($data[$id]); | |
499 | if (!$keep_array && count($data) == 1) { | |
500 | reset($data); | |
501 | $result[$key] = current($data); | |
502 | } else { | |
503 | $result[$key] = $data; | |
504 | } | |
505 | } else { | |
506 | $result[] = $data; | |
507 | } | |
508 | } | |
0337d704 | 509 | $this->free(); |
510 | return $result; | |
511 | } | |
512 | ||
e4f6c7d0 | 513 | public function fetchAllAssoc($id = false, $keep_array = false) |
0337d704 | 514 | { |
515 | $result = Array(); | |
cd1d4b4f | 516 | if (!$this->res) { |
0381e170 | 517 | return $result; |
518 | } | |
cd1d4b4f | 519 | while (($data = $this->res->fetch_assoc())) { |
e4f6c7d0 FB |
520 | if ($id !== false) { |
521 | $key = $data[$id]; | |
522 | unset($data[$id]); | |
523 | if (!$keep_array && count($data) == 1) { | |
524 | reset($data); | |
525 | $result[$key] = current($data); | |
526 | } else { | |
527 | $result[$key] = $data; | |
528 | } | |
529 | } else { | |
530 | $result[] = $data; | |
531 | } | |
532 | } | |
0337d704 | 533 | $this->free(); |
534 | return $result; | |
535 | } | |
536 | ||
0381e170 | 537 | public function fetchOneAssoc() |
0337d704 | 538 | { |
cd1d4b4f | 539 | $tmp = $this->fetchAssoc(); |
0337d704 | 540 | $this->free(); |
541 | return $tmp; | |
542 | } | |
543 | ||
0381e170 | 544 | public function fetchOneRow() |
0337d704 | 545 | { |
cd1d4b4f | 546 | $tmp = $this->fetchRow(); |
0337d704 | 547 | $this->free(); |
548 | return $tmp; | |
549 | } | |
550 | ||
0381e170 | 551 | public function fetchOneCell() |
0337d704 | 552 | { |
cd1d4b4f | 553 | $tmp = $this->fetchRow(); |
0337d704 | 554 | $this->free(); |
555 | return $tmp[0]; | |
556 | } | |
557 | ||
0381e170 | 558 | public function fetchColumn($key = 0) |
0337d704 | 559 | { |
560 | $res = Array(); | |
561 | if (is_numeric($key)) { | |
cd1d4b4f | 562 | while($tmp = $this->fetchRow()) { |
0337d704 | 563 | $res[] = $tmp[$key]; |
564 | } | |
565 | } else { | |
cd1d4b4f | 566 | while($tmp = $this->fetchAssoc()) { |
0337d704 | 567 | $res[] = $tmp[$key]; |
568 | } | |
569 | } | |
570 | $this->free(); | |
571 | return $res; | |
572 | } | |
573 | ||
0381e170 | 574 | public function fetchOneField() |
0380bf85 | 575 | { |
cd1d4b4f | 576 | return $this->res ? $this->res->fetch_field() : null; |
0380bf85 | 577 | } |
578 | ||
0381e170 | 579 | public function fetchFields() |
0380bf85 | 580 | { |
581 | $res = array(); | |
582 | while ($res[] = $this->fetchOneField()); | |
583 | return $res; | |
584 | } | |
585 | ||
0381e170 | 586 | public function numRows() |
0337d704 | 587 | { |
cd1d4b4f | 588 | return $this->res ? $this->res->num_rows : 0; |
0337d704 | 589 | } |
0380bf85 | 590 | |
0381e170 | 591 | public function fieldCount() |
0380bf85 | 592 | { |
cd1d4b4f | 593 | return $this->res ? $this->res->field_count : 0; |
0380bf85 | 594 | } |
0337d704 | 595 | } |
596 | ||
2b1ee50b | 597 | |
cd1d4b4f | 598 | class XDBIterator extends XDBResult implements PlIterator |
0337d704 | 599 | { |
cd1d4b4f FB |
600 | private $result; |
601 | private $pos; | |
602 | private $total; | |
603 | private $fpos; | |
604 | private $fields; | |
605 | private $mode = MYSQL_ASSOC; | |
0337d704 | 606 | |
0381e170 | 607 | public function __construct($query, $mode = MYSQL_ASSOC) |
0337d704 | 608 | { |
0381e170 | 609 | parent::__construct($query); |
cd1d4b4f FB |
610 | $this->pos = 0; |
611 | $this->total = $this->numRows(); | |
612 | $this->fpost = 0; | |
613 | $this->fields = $this->fieldCount(); | |
614 | $this->mode = $mode; | |
0337d704 | 615 | } |
616 | ||
0381e170 | 617 | public function next() |
0337d704 | 618 | { |
cd1d4b4f FB |
619 | $this->pos ++; |
620 | if ($this->pos > $this->total) { | |
0381e170 | 621 | $this->free(); |
0337d704 | 622 | unset($this); |
623 | return null; | |
624 | } | |
cd1d4b4f | 625 | return $this->mode != MYSQL_ASSOC ? $this->fetchRow() : $this->fetchAssoc(); |
0337d704 | 626 | } |
627 | ||
0381e170 | 628 | public function first() |
0337d704 | 629 | { |
cd1d4b4f | 630 | return $this->pos == 1; |
0337d704 | 631 | } |
632 | ||
0381e170 | 633 | public function last() |
0337d704 | 634 | { |
cd1d4b4f | 635 | return $this->pos == $this->total; |
0337d704 | 636 | } |
637 | ||
0381e170 | 638 | public function total() |
0337d704 | 639 | { |
cd1d4b4f | 640 | return $this->total; |
0337d704 | 641 | } |
0380bf85 | 642 | |
0381e170 | 643 | public function nextField() |
0380bf85 | 644 | { |
cd1d4b4f FB |
645 | $this->fpos++; |
646 | if ($this->fpos > $this->fields) { | |
0380bf85 | 647 | return null; |
648 | } | |
0381e170 | 649 | return $this->fetchOneField(); |
0380bf85 | 650 | } |
651 | ||
0381e170 | 652 | public function firstField() |
0380bf85 | 653 | { |
cd1d4b4f | 654 | return $this->fpos == 1; |
0380bf85 | 655 | } |
656 | ||
0381e170 | 657 | public function lastField() |
0380bf85 | 658 | { |
cd1d4b4f | 659 | return $this->fpos == $this->fields; |
0380bf85 | 660 | } |
661 | ||
0381e170 | 662 | public function totalFields() |
0380bf85 | 663 | { |
cd1d4b4f | 664 | return $this->fields; |
0380bf85 | 665 | } |
0337d704 | 666 | } |
667 | ||
a7de4ef7 | 668 | // vim:set et sw=4 sts=4 sws=4 foldmethod=marker enc=utf-8: |
0337d704 | 669 | ?> |