| 1 |
lars |
1 |
<?php
|
|
|
2 |
// +----------------------------------------------------------------------+
|
|
|
3 |
// | PHP Version 4 |
|
|
|
4 |
// +----------------------------------------------------------------------+
|
|
|
5 |
// | Copyright (c) 1998-2004 Manuel Lemos, Tomas V.V.Cox, |
|
|
|
6 |
// | Stig. S. Bakken, Lukas Smith |
|
|
|
7 |
// | All rights reserved. |
|
|
|
8 |
// +----------------------------------------------------------------------+
|
|
|
9 |
// | MDB is a merge of PEAR DB and Metabases that provides a unified DB |
|
|
|
10 |
// | API as well as database abstraction for PHP applications. |
|
|
|
11 |
// | This LICENSE is in the BSD license style. |
|
|
|
12 |
// | |
|
|
|
13 |
// | Redistribution and use in source and binary forms, with or without |
|
|
|
14 |
// | modification, are permitted provided that the following conditions |
|
|
|
15 |
// | are met: |
|
|
|
16 |
// | |
|
|
|
17 |
// | Redistributions of source code must retain the above copyright |
|
|
|
18 |
// | notice, this list of conditions and the following disclaimer. |
|
|
|
19 |
// | |
|
|
|
20 |
// | Redistributions in binary form must reproduce the above copyright |
|
|
|
21 |
// | notice, this list of conditions and the following disclaimer in the |
|
|
|
22 |
// | documentation and/or other materials provided with the distribution. |
|
|
|
23 |
// | |
|
|
|
24 |
// | Neither the name of Manuel Lemos, Tomas V.V.Cox, Stig. S. Bakken, |
|
|
|
25 |
// | Lukas Smith nor the names of his contributors may be used to endorse |
|
|
|
26 |
// | or promote products derived from this software without specific prior|
|
|
|
27 |
// | written permission. |
|
|
|
28 |
// | |
|
|
|
29 |
// | THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
|
|
|
30 |
// | "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
|
|
|
31 |
// | LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS |
|
|
|
32 |
// | FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE |
|
|
|
33 |
// | REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, |
|
|
|
34 |
// | INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, |
|
|
|
35 |
// | BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS|
|
|
|
36 |
// | OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED |
|
|
|
37 |
// | AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
|
|
|
38 |
// | LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY|
|
|
|
39 |
// | WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
|
|
|
40 |
// | POSSIBILITY OF SUCH DAMAGE. |
|
|
|
41 |
// +----------------------------------------------------------------------+
|
|
|
42 |
// | Author: Paul Cooper <pgc@ucecom.com> |
|
|
|
43 |
// +----------------------------------------------------------------------+
|
|
|
44 |
//
|
|
|
45 |
// $Id: pgsql.php,v 1.62.4.20 2004/03/12 16:19:30 lsmith Exp $
|
|
|
46 |
|
|
|
47 |
require_once('MDB/Common.php');
|
|
|
48 |
|
|
|
49 |
/**
|
|
|
50 |
* MDB PostGreSQL driver
|
|
|
51 |
*
|
|
|
52 |
* Notes:
|
|
|
53 |
* - Creation of new databases is based on database template1.
|
|
|
54 |
*
|
|
|
55 |
* - The decimal type fields are emulated with integer fields.
|
|
|
56 |
*
|
|
|
57 |
* - PostgreSQL stores large objects in files managed by the server.
|
|
|
58 |
* Tables with large object fields only store identifiers pointing to those
|
|
|
59 |
* files. If you delete or update rows of those tables, the actual large
|
|
|
60 |
* object files are not deleted from the server file system. Therefore you may
|
|
|
61 |
* need to reclaim large object field space by deleting those files manually.
|
|
|
62 |
*
|
|
|
63 |
* @package MDB
|
|
|
64 |
* @category Database
|
|
|
65 |
* @author Paul Cooper <pgc@ucecom.com>
|
|
|
66 |
*/
|
|
|
67 |
|
|
|
68 |
class MDB_pgsql extends MDB_Common
|
|
|
69 |
{
|
|
|
70 |
var $connection = 0;
|
|
|
71 |
var $connected_host;
|
|
|
72 |
var $connected_port;
|
|
|
73 |
var $selected_database = '';
|
|
|
74 |
var $opened_persistent = '';
|
|
|
75 |
|
|
|
76 |
var $escape_quotes = "\\";
|
|
|
77 |
var $decimal_factor = 1.0;
|
|
|
78 |
|
|
|
79 |
var $highest_fetched_row = array();
|
|
|
80 |
var $columns = array();
|
|
|
81 |
|
|
|
82 |
// }}}
|
|
|
83 |
// {{{ constructor
|
|
|
84 |
|
|
|
85 |
/**
|
|
|
86 |
* Constructor
|
|
|
87 |
*/
|
|
|
88 |
function MDB_pgsql()
|
|
|
89 |
{
|
|
|
90 |
$this->MDB_Common();
|
|
|
91 |
$this->phptype = 'pgsql';
|
|
|
92 |
$this->dbsyntax = 'pgsql';
|
|
|
93 |
|
|
|
94 |
$this->supported['Sequences'] = 1;
|
|
|
95 |
$this->supported['Indexes'] = 1;
|
|
|
96 |
$this->supported['SummaryFunctions'] = 1;
|
|
|
97 |
$this->supported['OrderByText'] = 1;
|
|
|
98 |
$this->supported['Transactions'] = 1;
|
|
|
99 |
$this->supported['CurrId'] = 1;
|
|
|
100 |
$this->supported['SelectRowRanges'] = 1;
|
|
|
101 |
$this->supported['LOBs'] = 1;
|
|
|
102 |
$this->supported['Replace'] = 1;
|
|
|
103 |
$this->supported['SubSelects'] = 1;
|
|
|
104 |
|
|
|
105 |
$this->decimal_factor = pow(10.0, $this->decimal_places);
|
|
|
106 |
}
|
|
|
107 |
|
|
|
108 |
// }}}
|
|
|
109 |
// {{{ errorCode()
|
|
|
110 |
|
|
|
111 |
/**
|
|
|
112 |
* Map native error codes to DB's portable ones. Requires that
|
|
|
113 |
* the DB implementation's constructor fills in the $errorcode_map
|
|
|
114 |
* property.
|
|
|
115 |
*
|
|
|
116 |
* @param $nativecode the native error code, as returned by the backend
|
|
|
117 |
* database extension (string or integer)
|
|
|
118 |
* @return int a portable MDB error code, or FALSE if this DB
|
|
|
119 |
* implementation has no mapping for the given error code.
|
|
|
120 |
*/
|
|
|
121 |
function errorCode($errormsg)
|
|
|
122 |
{
|
|
|
123 |
static $error_regexps;
|
|
|
124 |
if (empty($error_regexps)) {
|
|
|
125 |
$error_regexps = array(
|
|
|
126 |
'/([Tt]able does not exist\.|[Rr]elation [\"\'].*[\"\'] does not exist|[Ss]equence does not exist|[Cc]lass ".+" not found)$/' => MDB_ERROR_NOSUCHTABLE,
|
|
|
127 |
'/[Tt]able [\"\'].*[\"\'] does not exist/' => MDB_ERROR_NOSUCHTABLE,
|
|
|
128 |
'/[Rr]elation [\"\'].*[\"\'] already exists|[Cc]annot insert a duplicate key into (a )?unique index.*/' => MDB_ERROR_ALREADY_EXISTS,
|
|
|
129 |
'/divide by zero$/' => MDB_ERROR_DIVZERO,
|
|
|
130 |
'/pg_atoi: error in .*: can\'t parse /' => MDB_ERROR_INVALID_NUMBER,
|
|
|
131 |
'/ttribute [\"\'].*[\"\'] not found$|[Rr]elation [\"\'].*[\"\'] does not have attribute [\"\'].*[\"\']/' => MDB_ERROR_NOSUCHFIELD,
|
|
|
132 |
'/parser: parse error at or near \"/' => MDB_ERROR_SYNTAX,
|
|
|
133 |
'/syntax error at/' => MDB_ERROR_SYNTAX,
|
|
|
134 |
'/violates not-null constraint/' => MDB_ERROR_CONSTRAINT_NOT_NULL,
|
|
|
135 |
'/violates [\w ]+ constraint/' => MDB_ERROR_CONSTRAINT,
|
|
|
136 |
'/referential integrity violation/' => MDB_ERROR_CONSTRAINT,
|
|
|
137 |
'/deadlock detected/' => MDB_ERROR_DEADLOCK
|
|
|
138 |
);
|
|
|
139 |
}
|
|
|
140 |
foreach ($error_regexps as $regexp => $code) {
|
|
|
141 |
if (preg_match($regexp, $errormsg)) {
|
|
|
142 |
return($code);
|
|
|
143 |
}
|
|
|
144 |
}
|
|
|
145 |
// Fall back to MDB_ERROR if there was no mapping.
|
|
|
146 |
return(MDB_ERROR);
|
|
|
147 |
}
|
|
|
148 |
|
|
|
149 |
// }}}
|
|
|
150 |
// {{{ pgsqlRaiseError()
|
|
|
151 |
|
|
|
152 |
/**
|
|
|
153 |
* This method is used to communicate an error and invoke error
|
|
|
154 |
* callbacks etc. Basically a wrapper for MDB::raiseError
|
|
|
155 |
* that checks for native error msgs.
|
|
|
156 |
*
|
|
|
157 |
* @param integer $errno error code
|
|
|
158 |
* @param string $message userinfo message
|
|
|
159 |
* @return object a PEAR error object
|
|
|
160 |
* @access public
|
|
|
161 |
* @see PEAR_Error
|
|
|
162 |
*/
|
|
|
163 |
function pgsqlRaiseError($errno = NULL, $message = NULL)
|
|
|
164 |
{
|
|
|
165 |
if ($this->connection) {
|
|
|
166 |
$error = @pg_errormessage($this->connection);
|
|
|
167 |
} else {
|
|
|
168 |
$error = @pg_errormessage();
|
|
|
169 |
}
|
|
|
170 |
return($this->raiseError($this->errorCode($error), NULL, NULL, $message, $error));
|
|
|
171 |
}
|
|
|
172 |
|
|
|
173 |
// }}}
|
|
|
174 |
// {{{ errorNative()
|
|
|
175 |
|
|
|
176 |
/**
|
|
|
177 |
* Get the native error code of the last error (if any) that
|
|
|
178 |
* occured on the current connection.
|
|
|
179 |
*
|
|
|
180 |
* @access public
|
|
|
181 |
*
|
|
|
182 |
* @return int native pgsql error code
|
|
|
183 |
*/
|
|
|
184 |
function errorNative()
|
|
|
185 |
{
|
|
|
186 |
return @pg_errormessage($this->connection);
|
|
|
187 |
}
|
|
|
188 |
|
|
|
189 |
|
|
|
190 |
// }}}
|
|
|
191 |
// {{{ autoCommit()
|
|
|
192 |
|
|
|
193 |
/**
|
|
|
194 |
* Define whether database changes done on the database be automatically
|
|
|
195 |
* committed. This function may also implicitly start or end a transaction.
|
|
|
196 |
*
|
|
|
197 |
* @param boolean $auto_commit flag that indicates whether the database
|
|
|
198 |
* changes should be committed right after executing every query
|
|
|
199 |
* statement. If this argument is 0 a transaction implicitly started.
|
|
|
200 |
* Otherwise, if a transaction is in progress it is ended by committing
|
|
|
201 |
* any database changes that were pending.
|
|
|
202 |
* @return mixed MDB_OK on success, a MDB error on failure
|
|
|
203 |
* @access public
|
|
|
204 |
*/
|
|
|
205 |
function autoCommit($auto_commit)
|
|
|
206 |
{
|
|
|
207 |
$this->debug('AutoCommit: '.($auto_commit ? 'On' : 'Off'));
|
|
|
208 |
if ($this->auto_commit == $auto_commit) {
|
|
|
209 |
return(MDB_OK);
|
|
|
210 |
}
|
|
|
211 |
if ($this->connection) {
|
|
|
212 |
if (MDB::isError($result = $this->_doQuery($auto_commit ? 'END' : 'BEGIN')))
|
|
|
213 |
return($result);
|
|
|
214 |
}
|
|
|
215 |
$this->auto_commit = $auto_commit;
|
|
|
216 |
$this->in_transaction = !$auto_commit;
|
|
|
217 |
return(MDB_OK);
|
|
|
218 |
}
|
|
|
219 |
|
|
|
220 |
// }}}
|
|
|
221 |
// {{{ commit()
|
|
|
222 |
|
|
|
223 |
/**
|
|
|
224 |
* Commit the database changes done during a transaction that is in
|
|
|
225 |
* progress. This function may only be called when auto-committing is
|
|
|
226 |
* disabled, otherwise it will fail. Therefore, a new transaction is
|
|
|
227 |
* implicitly started after committing the pending changes.
|
|
|
228 |
*
|
|
|
229 |
* @return mixed MDB_OK on success, a MDB error on failure
|
|
|
230 |
* @access public
|
|
|
231 |
*/
|
|
|
232 |
function commit()
|
|
|
233 |
{
|
|
|
234 |
$this->debug('Commit Transaction');
|
|
|
235 |
if ($this->auto_commit) {
|
|
|
236 |
return($this->raiseError(MDB_ERROR, NULL, NULL, 'Commit: transaction changes are being auto commited'));
|
|
|
237 |
}
|
|
|
238 |
return($this->_doQuery('COMMIT') && $this->_doQuery('BEGIN'));
|
|
|
239 |
}
|
|
|
240 |
|
|
|
241 |
// }}}
|
|
|
242 |
// {{{ rollback()
|
|
|
243 |
|
|
|
244 |
/**
|
|
|
245 |
* Cancel any database changes done during a transaction that is in
|
|
|
246 |
* progress. This function may only be called when auto-committing is
|
|
|
247 |
* disabled, otherwise it will fail. Therefore, a new transaction is
|
|
|
248 |
* implicitly started after canceling the pending changes.
|
|
|
249 |
*
|
|
|
250 |
* @return mixed MDB_OK on success, a MDB error on failure
|
|
|
251 |
* @access public
|
|
|
252 |
*/
|
|
|
253 |
function rollback()
|
|
|
254 |
{
|
|
|
255 |
$this->debug('Rollback Transaction');
|
|
|
256 |
if ($this->auto_commit) {
|
|
|
257 |
return($this->raiseError(MDB_ERROR, NULL, NULL, 'Rollback: transactions can not be rolled back when changes are auto commited'));
|
|
|
258 |
}
|
|
|
259 |
return($this->_doQuery('ROLLBACK') && $this->_doQuery('BEGIN'));
|
|
|
260 |
}
|
|
|
261 |
|
|
|
262 |
// }}}
|
|
|
263 |
// {{{ _doConnect()
|
|
|
264 |
|
|
|
265 |
/**
|
|
|
266 |
* Does the grunt work of connecting to the database
|
|
|
267 |
*
|
|
|
268 |
* @return mixed connection resource on success, MDB_Error on failure
|
|
|
269 |
* @access private
|
|
|
270 |
**/
|
|
|
271 |
function _doConnect($database_name, $persistent)
|
|
|
272 |
{
|
|
|
273 |
$function = ($persistent ? 'pg_pconnect' : 'pg_connect');
|
|
|
274 |
if (!function_exists($function)) {
|
|
|
275 |
return($this->raiseError(MDB_ERROR_UNSUPPORTED, NULL, NULL, 'doConnect: PostgreSQL support is not available in this PHP configuration'));
|
|
|
276 |
}
|
|
|
277 |
$port = (isset($this->port) ? $this->port : '');
|
|
|
278 |
if ($database_name == '') {
|
|
|
279 |
$database_name = 'template1';
|
|
|
280 |
}
|
|
|
281 |
$connect_string = 'dbname='.$database_name;
|
|
|
282 |
if ($this->host != '') {
|
|
|
283 |
$connect_string .= ' host='.$this->host;
|
|
|
284 |
}
|
|
|
285 |
if ($port != '') {
|
|
|
286 |
$connect_string .= ' port='.strval($port);
|
|
|
287 |
}
|
|
|
288 |
if ($this->user != '') {
|
|
|
289 |
$connect_string .= ' user='.$this->user;
|
|
|
290 |
}
|
|
|
291 |
if ($this->password != '') {
|
|
|
292 |
$connect_string .= ' password='.$this->password;
|
|
|
293 |
}
|
|
|
294 |
putenv('PGDATESTYLE=ISO');
|
|
|
295 |
if (($connection = @$function($connect_string)) > 0) {
|
|
|
296 |
return($connection);
|
|
|
297 |
}
|
|
|
298 |
if (isset($php_errormsg)) {
|
|
|
299 |
$error_msg = $php_errormsg;
|
|
|
300 |
} else {
|
|
|
301 |
$error_msg = 'Could not connect to PostgreSQL server';
|
|
|
302 |
}
|
|
|
303 |
return($this->raiseError(MDB_ERROR_CONNECT_FAILED, NULL, NULL, 'doConnect: '.$error_msg));
|
|
|
304 |
}
|
|
|
305 |
|
|
|
306 |
// }}}
|
|
|
307 |
// {{{ connect()
|
|
|
308 |
|
|
|
309 |
/**
|
|
|
310 |
* Connect to the database
|
|
|
311 |
*
|
|
|
312 |
* @return TRUE on success, MDB_Error on failure
|
|
|
313 |
* @access public
|
|
|
314 |
**/
|
|
|
315 |
function connect()
|
|
|
316 |
{
|
|
|
317 |
$port = (isset($this->options['port']) ? $this->options['port'] : '');
|
|
|
318 |
if($this->connection != 0) {
|
|
|
319 |
if (!strcmp($this->connected_host, $this->host)
|
|
|
320 |
&& !strcmp($this->connected_port, $port)
|
|
|
321 |
&& !strcmp($this->selected_database, $this->database_name)
|
|
|
322 |
&& ($this->opened_persistent == $this->options['persistent']))
|
|
|
323 |
{
|
|
|
324 |
return(MDB_OK);
|
|
|
325 |
}
|
|
|
326 |
@pg_close($this->connection);
|
|
|
327 |
$this->affected_rows = -1;
|
|
|
328 |
$this->connection = 0;
|
|
|
329 |
}
|
|
|
330 |
|
|
|
331 |
if(!PEAR::loadExtension($this->phptype)) {
|
|
|
332 |
return(PEAR::raiseError(NULL, MDB_ERROR_NOT_FOUND,
|
|
|
333 |
NULL, NULL, 'extension '.$this->phptype.' is not compiled into PHP',
|
|
|
334 |
'MDB_Error', TRUE));
|
|
|
335 |
}
|
|
|
336 |
|
|
|
337 |
if(function_exists('pg_cmdTuples')) {
|
|
|
338 |
$connection = $this->_doConnect('template1', 0);
|
|
|
339 |
if (!MDB::isError($connection)) {
|
|
|
340 |
if (($result = @pg_exec($connection, 'BEGIN'))) {
|
|
|
341 |
$error_reporting = error_reporting(63);
|
|
|
342 |
@pg_cmdtuples($result);
|
|
|
343 |
if (!isset($php_errormsg) || strcmp($php_errormsg, 'This compilation does not support pg_cmdtuples()')) {
|
|
|
344 |
$this->supported['AffectedRows'] = 1;
|
|
|
345 |
}
|
|
|
346 |
error_reporting($error_reporting);
|
|
|
347 |
} else {
|
|
|
348 |
$err = $this->raiseError(MDB_ERROR, NULL, NULL, 'Setup: '.@pg_errormessage($connection));
|
|
|
349 |
}
|
|
|
350 |
@pg_close($connection);
|
|
|
351 |
} else {
|
|
|
352 |
$err = $this->raiseError(MDB_ERROR, NULL, NULL, 'Setup: could not execute BEGIN');
|
|
|
353 |
}
|
|
|
354 |
if (isset($err) && MDB::isError($err)) {
|
|
|
355 |
return($err);
|
|
|
356 |
}
|
|
|
357 |
}
|
|
|
358 |
$connection = $this->_doConnect($this->database_name, $this->options['persistent']);
|
|
|
359 |
if (MDB::isError($connection)) {
|
|
|
360 |
return($connection);
|
|
|
361 |
}
|
|
|
362 |
$this->connection = $connection;
|
|
|
363 |
|
|
|
364 |
if (!$this->auto_commit && MDB::isError($trans_result = $this->_doQuery('BEGIN'))) {
|
|
|
365 |
pg_Close($this->connection);
|
|
|
366 |
$this->connection = 0;
|
|
|
367 |
$this->affected_rows = -1;
|
|
|
368 |
return($trans_result);
|
|
|
369 |
}
|
|
|
370 |
$this->connected_host = $this->host;
|
|
|
371 |
$this->connected_port = $port;
|
|
|
372 |
$this->selected_database = $this->database_name;
|
|
|
373 |
$this->opened_persistent = $this->options['persistent'];
|
|
|
374 |
return(MDB_OK);
|
|
|
375 |
}
|
|
|
376 |
|
|
|
377 |
// }}}
|
|
|
378 |
// {{{ _close()
|
|
|
379 |
/**
|
|
|
380 |
* Close the database connection
|
|
|
381 |
*
|
|
|
382 |
* @return boolean
|
|
|
383 |
* @access private
|
|
|
384 |
**/
|
|
|
385 |
function _close()
|
|
|
386 |
{
|
|
|
387 |
if ($this->connection != 0) {
|
|
|
388 |
if (!$this->auto_commit) {
|
|
|
389 |
$this->_doQuery('END');
|
|
|
390 |
}
|
|
|
391 |
@pg_close($this->connection);
|
|
|
392 |
$this->connection = 0;
|
|
|
393 |
$this->affected_rows = -1;
|
|
|
394 |
|
|
|
395 |
unset($GLOBALS['_MDB_databases'][$this->database]);
|
|
|
396 |
return(MDB_OK);
|
|
|
397 |
}
|
|
|
398 |
return(MDB_ERROR);
|
|
|
399 |
}
|
|
|
400 |
|
|
|
401 |
// }}}
|
|
|
402 |
// {{{ _doQuery()
|
|
|
403 |
|
|
|
404 |
/**
|
|
|
405 |
* Execute a query
|
|
|
406 |
* @param string $query the SQL query
|
|
|
407 |
* @return mixed result identifier if query executed, else MDB_error
|
|
|
408 |
* @access private
|
|
|
409 |
**/
|
|
|
410 |
function _doQuery($query)
|
|
|
411 |
{
|
|
|
412 |
if (($result = @pg_Exec($this->connection, $query))) {
|
|
|
413 |
$this->affected_rows = (isset($this->supported['AffectedRows']) ? @pg_cmdtuples($result) : -1);
|
|
|
414 |
} else {
|
|
|
415 |
$error = @pg_errormessage($this->connection);
|
|
|
416 |
return($this->pgsqlRaiseError());
|
|
|
417 |
}
|
|
|
418 |
return($result);
|
|
|
419 |
}
|
|
|
420 |
|
|
|
421 |
// }}}
|
|
|
422 |
// {{{ _standaloneQuery()
|
|
|
423 |
|
|
|
424 |
/**
|
|
|
425 |
* execute a query
|
|
|
426 |
*
|
|
|
427 |
* @param string $query
|
|
|
428 |
* @return
|
|
|
429 |
* @access private
|
|
|
430 |
*/
|
|
|
431 |
function _standaloneQuery($query)
|
|
|
432 |
{
|
|
|
433 |
if (($connection = $this->_doConnect('template1', 0)) == 0) {
|
|
|
434 |
return($this->raiseError(MDB_ERROR_CONNECT_FAILED, NULL, NULL, '_standaloneQuery: Cannot connect to template1'));
|
|
|
435 |
}
|
|
|
436 |
if (!($result = @pg_Exec($connection, $query))) {
|
|
|
437 |
$this->raiseError(MDB_ERROR, NULL, NULL, '_standaloneQuery: ' . @pg_errormessage($connection));
|
|
|
438 |
}
|
|
|
439 |
pg_Close($connection);
|
|
|
440 |
return($result);
|
|
|
441 |
}
|
|
|
442 |
|
|
|
443 |
// }}}
|
|
|
444 |
// {{{ query()
|
|
|
445 |
|
|
|
446 |
/**
|
|
|
447 |
* Send a query to the database and return any results
|
|
|
448 |
*
|
|
|
449 |
* @param string $query the SQL query
|
|
|
450 |
* @param array $types array that contains the types of the columns in
|
|
|
451 |
* the result set
|
|
|
452 |
* @return mixed result identifier if query executed, else MDB_error
|
|
|
453 |
* @access public
|
|
|
454 |
**/
|
|
|
455 |
function query($query, $types = NULL)
|
|
|
456 |
{
|
|
|
457 |
$this->debug("Query: $query");
|
|
|
458 |
$ismanip = MDB::isManip($query);
|
|
|
459 |
$this->last_query = $query;
|
|
|
460 |
$first = $this->first_selected_row;
|
|
|
461 |
$limit = $this->selected_row_limit;
|
|
|
462 |
$this->first_selected_row = $this->selected_row_limit = 0;
|
|
|
463 |
$connected = $this->connect();
|
|
|
464 |
if (MDB::isError($connected)) {
|
|
|
465 |
return($connected);
|
|
|
466 |
}
|
|
|
467 |
|
|
|
468 |
if (!$ismanip && $limit > 0) {
|
|
|
469 |
if ($this->auto_commit && MDB::isError($this->_doQuery('BEGIN'))) {
|
|
|
470 |
return($this->raiseError(MDB_ERROR));
|
|
|
471 |
}
|
|
|
472 |
$result = $this->_doQuery('DECLARE select_cursor SCROLL CURSOR FOR '.$query);
|
|
|
473 |
if (!MDB::isError($result)) {
|
|
|
474 |
if ($first > 0 && MDB::isError($result = $this->_doQuery("MOVE FORWARD $first FROM select_cursor"))) {
|
|
|
475 |
$this->freeResult($result);
|
|
|
476 |
return($result);
|
|
|
477 |
}
|
|
|
478 |
if (MDB::isError($result = $this->_doQuery("FETCH FORWARD $limit FROM select_cursor"))) {
|
|
|
479 |
$this->freeResult($result);
|
|
|
480 |
return($result);
|
|
|
481 |
}
|
|
|
482 |
} else {
|
|
|
483 |
return($result);
|
|
|
484 |
}
|
|
|
485 |
if ($this->auto_commit && MDB::isError($result2 = $this->_doQuery('END'))) {
|
|
|
486 |
$this->freeResult($result);
|
|
|
487 |
return($result2);
|
|
|
488 |
}
|
|
|
489 |
} else {
|
|
|
490 |
$result = $this->_doQuery($query);
|
|
|
491 |
if (MDB::isError($result)) {
|
|
|
492 |
return($result);
|
|
|
493 |
}
|
|
|
494 |
}
|
|
|
495 |
if ($ismanip) {
|
|
|
496 |
$this->affected_rows = @pg_cmdtuples($result);
|
|
|
497 |
return(MDB_OK);
|
|
|
498 |
} elseif ((preg_match('/^\s*\(?\s*SELECT\s+/si', $query)
|
|
|
499 |
&& !preg_match('/^\s*\(?\s*SELECT\s+INTO\s/si', $query)
|
|
|
500 |
) || preg_match('/^\s*EXPLAIN/si',$query )
|
|
|
501 |
) {
|
|
|
502 |
/* PostgreSQL commands:
|
|
|
503 |
ABORT, ALTER, BEGIN, CLOSE, CLUSTER, COMMIT, COPY,
|
|
|
504 |
CREATE, DECLARE, DELETE, DROP TABLE, EXPLAIN, FETCH,
|
|
|
505 |
GRANT, INSERT, LISTEN, LOAD, LOCK, MOVE, NOTIFY, RESET,
|
|
|
506 |
REVOKE, ROLLBACK, SELECT, SELECT INTO, SET, SHOW,
|
|
|
507 |
UNLISTEN, UPDATE, VACUUM
|
|
|
508 |
*/
|
|
|
509 |
$result_value = intval($result);
|
|
|
510 |
$this->highest_fetched_row[$result_value] = -1;
|
|
|
511 |
if ($types != NULL) {
|
|
|
512 |
if (!is_array($types)) {
|
|
|
513 |
$types = array($types);
|
|
|
514 |
}
|
|
|
515 |
if (MDB::isError($err = $this->setResultTypes($result, $types))) {
|
|
|
516 |
$this->freeResult($result);
|
|
|
517 |
return($err);
|
|
|
518 |
}
|
|
|
519 |
}
|
|
|
520 |
return($result);
|
|
|
521 |
} else {
|
|
|
522 |
$this->affected_rows = 0;
|
|
|
523 |
return(MDB_OK);
|
|
|
524 |
}
|
|
|
525 |
return($this->raiseError(MDB_ERROR));
|
|
|
526 |
}
|
|
|
527 |
|
|
|
528 |
// }}}
|
|
|
529 |
// {{{ getColumnNames()
|
|
|
530 |
|
|
|
531 |
/**
|
|
|
532 |
* Retrieve the names of columns returned by the DBMS in a query result.
|
|
|
533 |
*
|
|
|
534 |
* @param resource $result result identifier
|
|
|
535 |
* @return mixed associative array variable
|
|
|
536 |
* that holds the names of columns. The indexes of the array are
|
|
|
537 |
* the column names mapped to lower case and the values are the
|
|
|
538 |
* respective numbers of the columns starting from 0. Some DBMS may
|
|
|
539 |
* not return any columns when the result set does not contain any
|
|
|
540 |
* rows.
|
|
|
541 |
* a MDB error on failure
|
|
|
542 |
* @access public
|
|
|
543 |
*/
|
|
|
544 |
function getColumnNames($result)
|
|
|
545 |
{
|
|
|
546 |
$result_value = intval($result);
|
|
|
547 |
if (!isset($this->highest_fetched_row[$result_value])) {
|
|
|
548 |
return($this->raiseError(MDB_ERROR, NULL, NULL, 'Get Column Names: specified an nonexistant result set'));
|
|
|
549 |
}
|
|
|
550 |
if (!isset($this->columns[$result_value])) {
|
|
|
551 |
$this->columns[$result_value] = array();
|
|
|
552 |
$columns = @pg_numfields($result);
|
|
|
553 |
for($column = 0; $column < $columns; $column++) {
|
|
|
554 |
$field_name = @pg_fieldname($result, $column);
|
|
|
555 |
if ($this->options['optimize'] == 'portability') {
|
|
|
556 |
$field_name = strtolower($field_name);
|
|
|
557 |
}
|
|
|
558 |
$this->columns[$result_value][$field_name] = $column;
|
|
|
559 |
}
|
|
|
560 |
}
|
|
|
561 |
return($this->columns[$result_value]);
|
|
|
562 |
}
|
|
|
563 |
|
|
|
564 |
// }}}
|
|
|
565 |
// {{{ numCols()
|
|
|
566 |
|
|
|
567 |
/**
|
|
|
568 |
* Count the number of columns returned by the DBMS in a query result.
|
|
|
569 |
*
|
|
|
570 |
* @param resource $result result identifier
|
|
|
571 |
* @return mixed integer value with the number of columns, a MDB error
|
|
|
572 |
* on failure
|
|
|
573 |
* @access public
|
|
|
574 |
*/
|
|
|
575 |
function numCols($result)
|
|
|
576 |
{
|
|
|
577 |
$result_value = intval($result);
|
|
|
578 |
if (!isset($this->highest_fetched_row[$result_value])) {
|
|
|
579 |
return($this->raiseError(MDB_ERROR, NULL, NULL, 'numCols: specified an nonexistant result set'));
|
|
|
580 |
}
|
|
|
581 |
return(pg_numfields($result));
|
|
|
582 |
}
|
|
|
583 |
|
|
|
584 |
// }}}
|
|
|
585 |
// {{{ endOfResult()
|
|
|
586 |
|
|
|
587 |
/**
|
|
|
588 |
* check if the end of the result set has been reached
|
|
|
589 |
*
|
|
|
590 |
* @param resource $result result identifier
|
|
|
591 |
* @return mixed TRUE or FALSE on sucess, a MDB error on failure
|
|
|
592 |
* @access public
|
|
|
593 |
*/
|
|
|
594 |
function endOfResult($result)
|
|
|
595 |
{
|
|
|
596 |
$result_value = intval($result);
|
|
|
597 |
if (!isset($this->highest_fetched_row[$result_value])) {
|
|
|
598 |
return($this->raiseError(MDB_ERROR, NULL, NULL, 'End of result attempted to check the end of an unknown result'));
|
|
|
599 |
}
|
|
|
600 |
return($this->highest_fetched_row[$result_value] >= $this->numRows($result) - 1);
|
|
|
601 |
}
|
|
|
602 |
|
|
|
603 |
// }}}
|
|
|
604 |
// {{{ fetch()
|
|
|
605 |
|
|
|
606 |
/**
|
|
|
607 |
* fetch value from a result set
|
|
|
608 |
*
|
|
|
609 |
* @param resource $result result identifier
|
|
|
610 |
* @param int $row number of the row where the data can be found
|
|
|
611 |
* @param int $field field number where the data can be found
|
|
|
612 |
* @return mixed string on success, a MDB error on failure
|
|
|
613 |
* @access public
|
|
|
614 |
*/
|
|
|
615 |
function fetch($result, $row, $field)
|
|
|
616 |
{
|
|
|
617 |
$result_value = intval($result);
|
|
|
618 |
$this->highest_fetched_row[$result_value] = max($this->highest_fetched_row[$result_value], $row);
|
|
|
619 |
$res = @pg_result($result, $row, $field);
|
|
|
620 |
if ($res === FALSE && $res != NULL) {
|
|
|
621 |
return($this->pgsqlRaiseError());
|
|
|
622 |
}
|
|
|
623 |
return($res);
|
|
|
624 |
}
|
|
|
625 |
|
|
|
626 |
// }}}
|
|
|
627 |
// {{{ _retrieveLob()
|
|
|
628 |
|
|
|
629 |
/**
|
|
|
630 |
* fetch a float value from a result set
|
|
|
631 |
*
|
|
|
632 |
* @param int $lob handle to a lob created by the createLob() function
|
|
|
633 |
* @return mixed MDB_OK on success, a MDB error on failure
|
|
|
634 |
* @access private
|
|
|
635 |
*/
|
|
|
636 |
function _retrieveLob($lob)
|
|
|
637 |
{
|
|
|
638 |
if (!isset($this->lobs[$lob])) {
|
|
|
639 |
return($this->raiseError(MDB_ERROR_INVALID, NULL, NULL,
|
|
|
640 |
'Retrieve LOB: did not specified a valid lob'));
|
|
|
641 |
}
|
|
|
642 |
if (!isset($this->lobs[$lob]['Value'])) {
|
|
|
643 |
if ($this->auto_commit) {
|
|
|
644 |
if (!@pg_exec($this->connection, 'BEGIN')) {
|
|
|
645 |
return($this->raiseError(MDB_ERROR, NULL, NULL,
|
|
|
646 |
'Retrieve LOB: ' . @pg_errormessage($this->connection)));
|
|
|
647 |
}
|
|
|
648 |
$this->lobs[$lob]['InTransaction'] = 1;
|
|
|
649 |
}
|
|
|
650 |
$this->lobs[$lob]['Value'] = $this->fetch($this->lobs[$lob]['Result'], $this->lobs[$lob]['Row'], $this->lobs[$lob]['Field']);
|
|
|
651 |
if (!($this->lobs[$lob]['Handle'] = @pg_loopen($this->connection, $this->lobs[$lob]['Value'], 'r'))) {
|
|
|
652 |
if (isset($this->lobs[$lob]['InTransaction'])) {
|
|
|
653 |
@pg_exec($this->connection, 'END');
|
|
|
654 |
unset($this->lobs[$lob]['InTransaction']);
|
|
|
655 |
}
|
|
|
656 |
unset($this->lobs[$lob]['Value']);
|
|
|
657 |
return($this->raiseError(MDB_ERROR, NULL, NULL,
|
|
|
658 |
'Retrieve LOB: ' . @pg_errormessage($this->connection)));
|
|
|
659 |
}
|
|
|
660 |
}
|
|
|
661 |
return(MDB_OK);
|
|
|
662 |
}
|
|
|
663 |
|
|
|
664 |
// }}}
|
|
|
665 |
// {{{ endOfResultLob()
|
|
|
666 |
|
|
|
667 |
/**
|
|
|
668 |
* Determine whether it was reached the end of the large object and
|
|
|
669 |
* therefore there is no more data to be read for the its input stream.
|
|
|
670 |
*
|
|
|
671 |
* @param int $lob handle to a lob created by the createLob() function
|
|
|
672 |
* @return mixed TRUE or FALSE on success, a MDB error on failure
|
|
|
673 |
* @access public
|
|
|
674 |
*/
|
|
|
675 |
function endOfResultLob($lob)
|
|
|
676 |
{
|
|
|
677 |
$lobresult = $this->_retrieveLob($lob);
|
|
|
678 |
if (MDB::isError($lobresult)) {
|
|
|
679 |
return($lobresult);
|
|
|
680 |
}
|
|
|
681 |
return(isset($this->lobs[$lob]['EndOfLOB']));
|
|
|
682 |
}
|
|
|
683 |
|
|
|
684 |
// }}}
|
|
|
685 |
// {{{ _readResultLob()
|
|
|
686 |
|
|
|
687 |
/**
|
|
|
688 |
* Read data from large object input stream.
|
|
|
689 |
*
|
|
|
690 |
* @param int $lob handle to a lob created by the createLob() function
|
|
|
691 |
* @param blob $data reference to a variable that will hold data to be
|
|
|
692 |
* read from the large object input stream
|
|
|
693 |
* @param int $length integer value that indicates the largest ammount of
|
|
|
694 |
* data to be read from the large object input stream.
|
|
|
695 |
* @return mixed length on success, a MDB error on failure
|
|
|
696 |
* @access private
|
|
|
697 |
*/
|
|
|
698 |
function _readResultLob($lob, &$data, $length)
|
|
|
699 |
{
|
|
|
700 |
$lobresult = $this->_retrieveLob($lob);
|
|
|
701 |
if (MDB::isError($lobresult)) {
|
|
|
702 |
return($lobresult);
|
|
|
703 |
}
|
|
|
704 |
$data = @pg_loread($this->lobs[$lob]['Handle'], $length);
|
|
|
705 |
if (gettype($data) != 'string') {
|
|
|
706 |
$this->raiseError(MDB_ERROR, NULL, NULL,
|
|
|
707 |
'Read Result LOB: ' . @pg_errormessage($this->connection));
|
|
|
708 |
}
|
|
|
709 |
if (($length = strlen($data)) == 0) {
|
|
|
710 |
$this->lobs[$lob]['EndOfLOB'] = 1;
|
|
|
711 |
}
|
|
|
712 |
return($length);
|
|
|
713 |
}
|
|
|
714 |
|
|
|
715 |
// }}}
|
|
|
716 |
// {{{ _destroyResultLob()
|
|
|
717 |
|
|
|
718 |
/**
|
|
|
719 |
* Free any resources allocated during the lifetime of the large object
|
|
|
720 |
* handler object.
|
|
|
721 |
*
|
|
|
722 |
* @param int $lob handle to a lob created by the createLob() function
|
|
|
723 |
* @access private
|
|
|
724 |
*/
|
|
|
725 |
function _destroyResultLob($lob)
|
|
|
726 |
{
|
|
|
727 |
if (isset($this->lobs[$lob])) {
|
|
|
728 |
if (isset($this->lobs[$lob]['Value'])) {
|
|
|
729 |
@pg_loclose($this->lobs[$lob]['Handle']);
|
|
|
730 |
if (isset($this->lobs[$lob]['InTransaction'])) {
|
|
|
731 |
@pg_exec($this->connection, 'END');
|
|
|
732 |
}
|
|
|
733 |
}
|
|
|
734 |
$this->lobs[$lob] = '';
|
|
|
735 |
}
|
|
|
736 |
}
|
|
|
737 |
|
|
|
738 |
// }}}
|
|
|
739 |
// {{{ fetchClob()
|
|
|
740 |
|
|
|
741 |
/**
|
|
|
742 |
* fetch a clob value from a result set
|
|
|
743 |
*
|
|
|
744 |
* @param resource $result result identifier
|
|
|
745 |
* @param int $row number of the row where the data can be found
|
|
|
746 |
* @param int $field field number where the data can be found
|
|
|
747 |
* @return mixed content of the specified data cell, a MDB error on failure,
|
|
|
748 |
* a MDB error on failure
|
|
|
749 |
* @access public
|
|
|
750 |
*/
|
|
|
751 |
function fetchClob($result, $row, $field)
|
|
|
752 |
{
|
|
|
753 |
return($this->fetchLob($result, $row, $field));
|
|
|
754 |
}
|
|
|
755 |
|
|
|
756 |
// }}}
|
|
|
757 |
// {{{ fetchBlob()
|
|
|
758 |
|
|
|
759 |
/**
|
|
|
760 |
* fetch a blob value from a result set
|
|
|
761 |
*
|
|
|
762 |
* @param resource $result result identifier
|
|
|
763 |
* @param int $row number of the row where the data can be found
|
|
|
764 |
* @param int $field field number where the data can be found
|
|
|
765 |
* @return mixed content of the specified data cell, a MDB error on failure
|
|
|
766 |
* @access public
|
|
|
767 |
*/
|
|
|
768 |
function fetchBlob($result, $row, $field)
|
|
|
769 |
{
|
|
|
770 |
return($this->fetchLob($result, $row, $field));
|
|
|
771 |
}
|
|
|
772 |
|
|
|
773 |
// }}}
|
|
|
774 |
// {{{ convertResult()
|
|
|
775 |
|
|
|
776 |
/**
|
|
|
777 |
* convert a value to a RDBMS indepdenant MDB type
|
|
|
778 |
*
|
|
|
779 |
* @param mixed $value value to be converted
|
|
|
780 |
* @param int $type constant that specifies which type to convert to
|
|
|
781 |
* @return mixed converted value or a MDB error on failure
|
|
|
782 |
* @access public
|
|
|
783 |
*/
|
|
|
784 |
function convertResult($value, $type)
|
|
|
785 |
{
|
|
|
786 |
switch ($type) {
|
|
|
787 |
case MDB_TYPE_DECIMAL:
|
|
|
788 |
return(sprintf('%.'.$this->decimal_places.'f',doubleval($value)/$this->decimal_factor));
|
|
|
789 |
case MDB_TYPE_TIMESTAMP:
|
|
|
790 |
return substr($value, 0, strlen('YYYY-MM-DD HH:MM:SS'));
|
|
|
791 |
default:
|
|
|
792 |
return($this->_baseConvertResult($value, $type));
|
|
|
793 |
}
|
|
|
794 |
}
|
|
|
795 |
|
|
|
796 |
// }}}
|
|
|
797 |
// {{{ resultIsNull()
|
|
|
798 |
|
|
|
799 |
/**
|
|
|
800 |
* Determine whether the value of a query result located in given row and
|
|
|
801 |
* field is a NULL.
|
|
|
802 |
*
|
|
|
803 |
* @param resource $result result identifier
|
|
|
804 |
* @param int $row number of the row where the data can be found
|
|
|
805 |
* @param int $field field number where the data can be found
|
|
|
806 |
* @return mixed TRUE or FALSE on success, a MDB error on failure
|
|
|
807 |
* @access public
|
|
|
808 |
*/
|
|
|
809 |
function resultIsNull($result, $row, $field)
|
|
|
810 |
{
|
|
|
811 |
$result_value = intval($result);
|
|
|
812 |
$this->highest_fetched_row[$result_value] = max($this->highest_fetched_row[$result_value], $row);
|
|
|
813 |
return(@pg_fieldisnull($result, $row, $field));
|
|
|
814 |
}
|
|
|
815 |
|
|
|
816 |
// }}}
|
|
|
817 |
// {{{ numRows()
|
|
|
818 |
|
|
|
819 |
/**
|
|
|
820 |
* returns the number of rows in a result object
|
|
|
821 |
*
|
|
|
822 |
* @param ressource $result a valid result ressouce pointer
|
|
|
823 |
* @return mixed MDB_Error or the number of rows
|
|
|
824 |
* @access public
|
|
|
825 |
*/
|
|
|
826 |
function numRows($result)
|
|
|
827 |
{
|
|
|
828 |
return(@pg_numrows($result));
|
|
|
829 |
}
|
|
|
830 |
|
|
|
831 |
// }}}
|
|
|
832 |
// {{{ freeResult()
|
|
|
833 |
|
|
|
834 |
/**
|
|
|
835 |
* Free the internal resources associated with $result.
|
|
|
836 |
*
|
|
|
837 |
* @param $result result identifier
|
|
|
838 |
* @return boolean TRUE on success, FALSE if $result is invalid
|
|
|
839 |
* @access public
|
|
|
840 |
*/
|
|
|
841 |
function freeResult($result)
|
|
|
842 |
{
|
|
|
843 |
$result_value = intval($result);
|
|
|
844 |
if(isset($this->highest_fetched_row[$result_value])) {
|
|
|
845 |
unset($this->highest_fetched_row[$result_value]);
|
|
|
846 |
}
|
|
|
847 |
if(isset($this->columns[$result_value])) {
|
|
|
848 |
unset($this->columns[$result_value]);
|
|
|
849 |
}
|
|
|
850 |
if(isset($this->result_types[$result_value])) {
|
|
|
851 |
unset($this->result_types[$result_value]);
|
|
|
852 |
}
|
|
|
853 |
return(@pg_freeresult($result));
|
|
|
854 |
}
|
|
|
855 |
|
|
|
856 |
// }}}
|
|
|
857 |
// {{{ getTextDeclaration()
|
|
|
858 |
|
|
|
859 |
/**
|
|
|
860 |
* Obtain DBMS specific SQL code portion needed to declare an text type
|
|
|
861 |
* field to be used in statements like CREATE TABLE.
|
|
|
862 |
*
|
|
|
863 |
* @param string $name name the field to be declared.
|
|
|
864 |
* @param string $field associative array with the name of the properties
|
|
|
865 |
* of the field being declared as array indexes. Currently, the types
|
|
|
866 |
* of supported field properties are as follows:
|
|
|
867 |
*
|
|
|
868 |
* length
|
|
|
869 |
* Integer value that determines the maximum length of the text
|
|
|
870 |
* field. If this argument is missing the field should be
|
|
|
871 |
* declared to have the longest length allowed by the DBMS.
|
|
|
872 |
*
|
|
|
873 |
* default
|
|
|
874 |
* Text value to be used as default for this field.
|
|
|
875 |
*
|
|
|
876 |
* notnull
|
|
|
877 |
* Boolean flag that indicates whether this field is constrained
|
|
|
878 |
* to not be set to NULL.
|
|
|
879 |
* @return string DBMS specific SQL code portion that should be used to
|
|
|
880 |
* declare the specified field.
|
|
|
881 |
* @access public
|
|
|
882 |
*/
|
|
|
883 |
function getTextDeclaration($name, $field)
|
|
|
884 |
{
|
|
|
885 |
return((isset($field['length']) ? "$name VARCHAR (" . $field['length'] . ')' : "$name TEXT") . (isset($field['default']) ? " DEFAULT '" . $field['default'] . "'" : '') . (isset($field['notnull']) ? ' NOT NULL' : ''));
|
|
|
886 |
}
|
|
|
887 |
|
|
|
888 |
// }}}
|
|
|
889 |
// {{{ getClobDeclaration()
|
|
|
890 |
|
|
|
891 |
/**
|
|
|
892 |
* Obtain DBMS specific SQL code portion needed to declare an character
|
|
|
893 |
* large object type field to be used in statements like CREATE TABLE.
|
|
|
894 |
*
|
|
|
895 |
* @param string $name name the field to be declared.
|
|
|
896 |
* @param string $field associative array with the name of the properties
|
|
|
897 |
* of the field being declared as array indexes. Currently, the types
|
|
|
898 |
* of supported field properties are as follows:
|
|
|
899 |
*
|
|
|
900 |
* length
|
|
|
901 |
* Integer value that determines the maximum length of the large
|
|
|
902 |
* object field. If this argument is missing the field should be
|
|
|
903 |
* declared to have the longest length allowed by the DBMS.
|
|
|
904 |
*
|
|
|
905 |
* notnull
|
|
|
906 |
* Boolean flag that indicates whether this field is constrained
|
|
|
907 |
* to not be set to NULL.
|
|
|
908 |
* @return string DBMS specific SQL code portion that should be used to
|
|
|
909 |
* declare the specified field.
|
|
|
910 |
* @access public
|
|
|
911 |
*/
|
|
|
912 |
function getClobDeclaration($name, $field)
|
|
|
913 |
{
|
|
|
914 |
return("$name OID".(isset($field['notnull']) ? ' NOT NULL' : ''));
|
|
|
915 |
}
|
|
|
916 |
|
|
|
917 |
// }}}
|
|
|
918 |
// {{{ getBlobDeclaration()
|
|
|
919 |
|
|
|
920 |
/**
|
|
|
921 |
* Obtain DBMS specific SQL code portion needed to declare an binary large
|
|
|
922 |
* object type field to be used in statements like CREATE TABLE.
|
|
|
923 |
*
|
|
|
924 |
* @param string $name name the field to be declared.
|
|
|
925 |
* @param string $field associative array with the name of the properties
|
|
|
926 |
* of the field being declared as array indexes. Currently, the types
|
|
|
927 |
* of supported field properties are as follows:
|
|
|
928 |
*
|
|
|
929 |
* length
|
|
|
930 |
* Integer value that determines the maximum length of the large
|
|
|
931 |
* object field. If this argument is missing the field should be
|
|
|
932 |
* declared to have the longest length allowed by the DBMS.
|
|
|
933 |
*
|
|
|
934 |
* notnull
|
|
|
935 |
* Boolean flag that indicates whether this field is constrained
|
|
|
936 |
* to not be set to NULL.
|
|
|
937 |
* @return string DBMS specific SQL code portion that should be used to
|
|
|
938 |
* declare the specified field.
|
|
|
939 |
* @access public
|
|
|
940 |
*/
|
|
|
941 |
function getBlobDeclaration($name, $field)
|
|
|
942 |
{
|
|
|
943 |
return("$name OID".(isset($field['notnull']) ? ' NOT NULL' : ''));
|
|
|
944 |
}
|
|
|
945 |
|
|
|
946 |
// }}}
|
|
|
947 |
// {{{ getDateDeclaration()
|
|
|
948 |
|
|
|
949 |
/**
|
|
|
950 |
* Obtain DBMS specific SQL code portion needed to declare a date type
|
|
|
951 |
* field to be used in statements like CREATE TABLE.
|
|
|
952 |
*
|
|
|
953 |
* @param string $name name the field to be declared.
|
|
|
954 |
* @param string $field associative array with the name of the properties
|
|
|
955 |
* of the field being declared as array indexes. Currently, the types
|
|
|
956 |
* of supported field properties are as follows:
|
|
|
957 |
*
|
|
|
958 |
* default
|
|
|
959 |
* Date value to be used as default for this field.
|
|
|
960 |
*
|
|
|
961 |
* notnull
|
|
|
962 |
* Boolean flag that indicates whether this field is constrained
|
|
|
963 |
* to not be set to NULL.
|
|
|
964 |
* @return string DBMS specific SQL code portion that should be used to
|
|
|
965 |
* declare the specified field.
|
|
|
966 |
* @access public
|
|
|
967 |
*/
|
|
|
968 |
function getDateDeclaration($name, $field)
|
|
|
969 |
{
|
|
|
970 |
return($name.' DATE'.(isset($field['default']) ? ' DEFAULT \''.$field['default'] . "'" : '').(isset($field['notnull']) ? ' NOT NULL' : ''));
|
|
|
971 |
}
|
|
|
972 |
|
|
|
973 |
// }}}
|
|
|
974 |
// {{{ getTimeDeclaration()
|
|
|
975 |
|
|
|
976 |
/**
|
|
|
977 |
* Obtain DBMS specific SQL code portion needed to declare a time
|
|
|
978 |
* field to be used in statements like CREATE TABLE.
|
|
|
979 |
*
|
|
|
980 |
* @param string $name name the field to be declared.
|
|
|
981 |
* @param string $field associative array with the name of the properties
|
|
|
982 |
* of the field being declared as array indexes. Currently, the types
|
|
|
983 |
* of supported field properties are as follows:
|
|
|
984 |
*
|
|
|
985 |
* default
|
|
|
986 |
* Time value to be used as default for this field.
|
|
|
987 |
*
|
|
|
988 |
* notnull
|
|
|
989 |
* Boolean flag that indicates whether this field is constrained
|
|
|
990 |
* to not be set to NULL.
|
|
|
991 |
* @return string DBMS specific SQL code portion that should be used to
|
|
|
992 |
* declare the specified field.
|
|
|
993 |
* @access public
|
|
|
994 |
*/
|
|
|
995 |
function getTimeDeclaration($name, $field)
|
|
|
996 |
{
|
|
|
997 |
return($name.' TIME'.(isset($field['default']) ? ' DEFAULT \''.$field['default'].'\'' : '').(isset($field['notnull']) ? ' NOT NULL' : ''));
|
|
|
998 |
}
|
|
|
999 |
|
|
|
1000 |
// }}}
|
|
|
1001 |
// {{{ getFloatDeclaration()
|
|
|
1002 |
|
|
|
1003 |
/**
|
|
|
1004 |
* Obtain DBMS specific SQL code portion needed to declare a float type
|
|
|
1005 |
* field to be used in statements like CREATE TABLE.
|
|
|
1006 |
*
|
|
|
1007 |
* @param string $name name the field to be declared.
|
|
|
1008 |
* @param string $field associative array with the name of the properties
|
|
|
1009 |
* of the field being declared as array indexes. Currently, the types
|
|
|
1010 |
* of supported field properties are as follows:
|
|
|
1011 |
*
|
|
|
1012 |
* default
|
|
|
1013 |
* Float value to be used as default for this field.
|
|
|
1014 |
*
|
|
|
1015 |
* notnull
|
|
|
1016 |
* Boolean flag that indicates whether this field is constrained
|
|
|
1017 |
* to not be set to NULL.
|
|
|
1018 |
* @return string DBMS specific SQL code portion that should be used to
|
|
|
1019 |
* declare the specified field.
|
|
|
1020 |
* @access public
|
|
|
1021 |
*/
|
|
|
1022 |
function getFloatDeclaration($name, $field)
|
|
|
1023 |
{
|
|
|
1024 |
return("$name FLOAT8 ".(isset($field['default']) ? ' DEFAULT '.$this->getFloatValue($field['default']) : '').(isset($field['notnull']) ? ' NOT NULL' : ''));
|
|
|
1025 |
}
|
|
|
1026 |
|
|
|
1027 |
// }}}
|
|
|
1028 |
// {{{ getDecimalDeclaration()
|
|
|
1029 |
|
|
|
1030 |
/**
|
|
|
1031 |
* Obtain DBMS specific SQL code portion needed to declare a decimal type
|
|
|
1032 |
* field to be used in statements like CREATE TABLE.
|
|
|
1033 |
*
|
|
|
1034 |
* @param string $name name the field to be declared.
|
|
|
1035 |
* @param string $field associative array with the name of the properties
|
|
|
1036 |
* of the field being declared as array indexes. Currently, the types
|
|
|
1037 |
* of supported field properties are as follows:
|
|
|
1038 |
*
|
|
|
1039 |
* default
|
|
|
1040 |
* Decimal value to be used as default for this field.
|
|
|
1041 |
*
|
|
|
1042 |
* notnull
|
|
|
1043 |
* Boolean flag that indicates whether this field is constrained
|
|
|
1044 |
* to not be set to NULL.
|
|
|
1045 |
* @return string DBMS specific SQL code portion that should be used to
|
|
|
1046 |
* declare the specified field.
|
|
|
1047 |
* @access public
|
|
|
1048 |
*/
|
|
|
1049 |
function getDecimalDeclaration($name, $field)
|
|
|
1050 |
{
|
|
|
1051 |
return("$name INT8 ".(isset($field['default']) ? ' DEFAULT '.$this->getDecimalValue($field['default']) : '').(isset($field['notnull']) ? ' NOT NULL' : ''));
|
|
|
1052 |
}
|
|
|
1053 |
|
|
|
1054 |
// }}}
|
|
|
1055 |
// {{{ _getLobValue()
|
|
|
1056 |
|
|
|
1057 |
/**
|
|
|
1058 |
* Convert a text value into a DBMS specific format that is suitable to
|
|
|
1059 |
* compose query statements.
|
|
|
1060 |
*
|
|
|
1061 |
* @param resource $prepared_query query handle from prepare()
|
|
|
1062 |
* @param $parameter
|
|
|
1063 |
* @param $lob
|
|
|
1064 |
* @return string text string that represents the given argument value in
|
|
|
1065 |
* a DBMS specific format.
|
|
|
1066 |
* @access private
|
|
|
1067 |
*/
|
|
|
1068 |
function _getLobValue($prepared_query, $parameter, $lob)
|
|
|
1069 |
{
|
|
|
1070 |
$connect = $this->connect();
|
|
|
1071 |
if (MDB::isError($connect)) {
|
|
|
1072 |
return($connect);
|
|
|
1073 |
}
|
|
|
1074 |
if ($this->auto_commit && !@pg_exec($this->connection, 'BEGIN')) {
|
|
|
1075 |
return($this->raiseError(MDB_ERROR, NULL, NULL,
|
|
|
1076 |
'_getLobValue: error starting transaction'));
|
|
|
1077 |
}
|
|
|
1078 |
if (($lo = @pg_locreate($this->connection))) {
|
|
|
1079 |
if (($handle = @pg_loopen($this->connection, $lo, 'w'))) {
|
|
|
1080 |
while (!$this->endOfLob($lob)) {
|
|
|
1081 |
$result = $this->readLob($lob, $data, $this->options['lob_buffer_length']);
|
|
|
1082 |
if (MDB::isError($result)) {
|
|
|
1083 |
break;
|
|
|
1084 |
}
|
|
|
1085 |
if (!@pg_lowrite($handle, $data)) {
|
|
|
1086 |
$result = $this->raiseError(MDB_ERROR, NULL, NULL,
|
|
|
1087 |
'Get LOB field value: ' . @pg_errormessage($this->connection));
|
|
|
1088 |
break;
|
|
|
1089 |
}
|
|
|
1090 |
}
|
|
|
1091 |
@pg_loclose($handle);
|
|
|
1092 |
if (!MDB::isError($result)) {
|
|
|
1093 |
$value = strval($lo);
|
|
|
1094 |
}
|
|
|
1095 |
} else {
|
|
|
1096 |
$result = $this->raiseError(MDB_ERROR, NULL, NULL,
|
|
|
1097 |
'Get LOB field value: ' . @pg_errormessage($this->connection));
|
|
|
1098 |
}
|
|
|
1099 |
if (MDB::isError($result)) {
|
|
|
1100 |
$result = @pg_lounlink($this->connection, $lo);
|
|
|
1101 |
}
|
|
|
1102 |
} else {
|
|
|
1103 |
$result = $this->raiseError(MDB_ERROR, NULL, NULL, 'Get LOB field value: ' . pg_ErrorMessage($this->connection));
|
|
|
1104 |
}
|
|
|
1105 |
if ($this->auto_commit) {
|
|
|
1106 |
@pg_exec($this->connection, 'END');
|
|
|
1107 |
}
|
|
|
1108 |
if (MDB::isError($result)) {
|
|
|
1109 |
return($result);
|
|
|
1110 |
}
|
|
|
1111 |
return($value);
|
|
|
1112 |
}
|
|
|
1113 |
|
|
|
1114 |
// }}}
|
|
|
1115 |
// {{{ getClobValue()
|
|
|
1116 |
|
|
|
1117 |
/**
|
|
|
1118 |
* Convert a text value into a DBMS specific format that is suitable to
|
|
|
1119 |
* compose query statements.
|
|
|
1120 |
*
|
|
|
1121 |
* @param resource $prepared_query query handle from prepare()
|
|
|
1122 |
* @param $parameter
|
|
|
1123 |
* @param $clob
|
|
|
1124 |
* @return string text string that represents the given argument value in
|
|
|
1125 |
* a DBMS specific format.
|
|
|
1126 |
* @access public
|
|
|
1127 |
*/
|
|
|
1128 |
function getClobValue($prepared_query, $parameter, $clob)
|
|
|
1129 |
{
|
|
|
1130 |
return($this->_getLobValue($prepared_query, $parameter, $clob));
|
|
|
1131 |
}
|
|
|
1132 |
|
|
|
1133 |
// }}}
|
|
|
1134 |
// {{{ getBlobValue()
|
|
|
1135 |
|
|
|
1136 |
/**
|
|
|
1137 |
* Convert a text value into a DBMS specific format that is suitable to
|
|
|
1138 |
* compose query statements.
|
|
|
1139 |
*
|
|
|
1140 |
* @param resource $prepared_query query handle from prepare()
|
|
|
1141 |
* @param $parameter
|
|
|
1142 |
* @param $blob
|
|
|
1143 |
* @return string text string that represents the given argument value in
|
|
|
1144 |
* a DBMS specific format.
|
|
|
1145 |
* @access public
|
|
|
1146 |
*/
|
|
|
1147 |
function getBlobValue($prepared_query, $parameter, $blob)
|
|
|
1148 |
{
|
|
|
1149 |
return($this->_getLobValue($prepared_query, $parameter, $blob));
|
|
|
1150 |
}
|
|
|
1151 |
|
|
|
1152 |
// }}}
|
|
|
1153 |
// {{{ getFloatValue()
|
|
|
1154 |
|
|
|
1155 |
/**
|
|
|
1156 |
* Convert a text value into a DBMS specific format that is suitable to
|
|
|
1157 |
* compose query statements.
|
|
|
1158 |
*
|
|
|
1159 |
* @param string $value text string value that is intended to be converted.
|
|
|
1160 |
* @return string text string that represents the given argument value in
|
|
|
1161 |
* a DBMS specific format.
|
|
|
1162 |
* @access public
|
|
|
1163 |
*/
|
|
|
1164 |
function getFloatValue($value)
|
|
|
1165 |
{
|
|
|
1166 |
return(($value === NULL) ? 'NULL' : $value);
|
|
|
1167 |
}
|
|
|
1168 |
|
|
|
1169 |
// }}}
|
|
|
1170 |
// {{{ getDecimalValue()
|
|
|
1171 |
|
|
|
1172 |
/**
|
|
|
1173 |
* Convert a text value into a DBMS specific format that is suitable to
|
|
|
1174 |
* compose query statements.
|
|
|
1175 |
*
|
|
|
1176 |
* @param string $value text string value that is intended to be converted.
|
|
|
1177 |
* @return string text string that represents the given argument value in
|
|
|
1178 |
* a DBMS specific format.
|
|
|
1179 |
* @access public
|
|
|
1180 |
*/
|
|
|
1181 |
function getDecimalValue($value)
|
|
|
1182 |
{
|
|
|
1183 |
return(($value === NULL) ? 'NULL' : strval(round($value*$this->decimal_factor)));
|
|
|
1184 |
}
|
|
|
1185 |
|
|
|
1186 |
// }}}
|
|
|
1187 |
// {{{ nextId()
|
|
|
1188 |
|
|
|
1189 |
/**
|
|
|
1190 |
* returns the next free id of a sequence
|
|
|
1191 |
*
|
|
|
1192 |
* @param string $seq_name name of the sequence
|
|
|
1193 |
* @param boolean $ondemand when TRUE the seqence is
|
|
|
1194 |
* automatic created, if it
|
|
|
1195 |
* not exists
|
|
|
1196 |
* @return mixed MDB_Error or id
|
|
|
1197 |
* @access public
|
|
|
1198 |
*/
|
|
|
1199 |
function nextId($seq_name, $ondemand = TRUE)
|
|
|
1200 |
{
|
|
|
1201 |
$seqname = $this->getSequenceName($seq_name);
|
|
|
1202 |
$repeat = 0;
|
|
|
1203 |
do {
|
|
|
1204 |
$this->pushErrorHandling(PEAR_ERROR_RETURN);
|
|
|
1205 |
$result = $this->query("SELECT NEXTVAL('$seqname')");
|
|
|
1206 |
$this->popErrorHandling();
|
|
|
1207 |
if ($ondemand && MDB::isError($result) && $result->getCode() == MDB_ERROR_NOSUCHTABLE) {
|
|
|
1208 |
$repeat = 1;
|
|
|
1209 |
$result = $this->createSequence($seq_name);
|
|
|
1210 |
if (MDB::isError($result)) {
|
|
|
1211 |
return($this->raiseError($result));
|
|
|
1212 |
}
|
|
|
1213 |
} else {
|
|
|
1214 |
$repeat = 0;
|
|
|
1215 |
}
|
|
|
1216 |
} while ($repeat);
|
|
|
1217 |
if (MDB::isError($result)) {
|
|
|
1218 |
return($this->raiseError($result));
|
|
|
1219 |
}
|
|
|
1220 |
return($this->fetchOne($result));
|
|
|
1221 |
}
|
|
|
1222 |
|
|
|
1223 |
// }}}
|
|
|
1224 |
// {{{ currId()
|
|
|
1225 |
|
|
|
1226 |
/**
|
|
|
1227 |
* returns the current id of a sequence
|
|
|
1228 |
*
|
|
|
1229 |
* @param string $seq_name name of the sequence
|
|
|
1230 |
* @return mixed MDB_Error or id
|
|
|
1231 |
* @access public
|
|
|
1232 |
*/
|
|
|
1233 |
function currId($seq_name)
|
|
|
1234 |
{
|
|
|
1235 |
$seqname = $this->getSequenceName($seq_name);
|
|
|
1236 |
if (MDB::isError($result = $this->queryOne("SELECT last_value FROM $seqname"))) {
|
|
|
1237 |
return($this->raiseError(MDB_ERROR, NULL, NULL, 'currId: Unable to select from ' . $seqname) );
|
|
|
1238 |
}
|
|
|
1239 |
if (!is_numeric($result)) {
|
|
|
1240 |
return($this->raiseError(MDB_ERROR, NULL, NULL, 'currId: could not find value in sequence table'));
|
|
|
1241 |
}
|
|
|
1242 |
return($result);
|
|
|
1243 |
}
|
|
|
1244 |
|
|
|
1245 |
// }}}
|
|
|
1246 |
// {{{ fetchInto()
|
|
|
1247 |
|
|
|
1248 |
/**
|
|
|
1249 |
* Fetch a row and return data in an array.
|
|
|
1250 |
*
|
|
|
1251 |
* @param resource $result result identifier
|
|
|
1252 |
* @param int $fetchmode ignored
|
|
|
1253 |
* @param int $rownum the row number to fetch
|
|
|
1254 |
* @return mixed data array or NULL on success, a MDB error on failure
|
|
|
1255 |
* @access public
|
|
|
1256 |
*/
|
|
|
1257 |
function fetchInto($result, $fetchmode = MDB_FETCHMODE_DEFAULT, $rownum = NULL)
|
|
|
1258 |
{
|
|
|
1259 |
$result_value = intval($result);
|
|
|
1260 |
if ($fetchmode == MDB_FETCHMODE_DEFAULT) {
|
|
|
1261 |
$fetchmode = $this->fetchmode;
|
|
|
1262 |
}
|
|
|
1263 |
|
|
|
1264 |
if (is_null($rownum)) {
|
|
|
1265 |
++$this->highest_fetched_row[$result_value];
|
|
|
1266 |
} else {
|
|
|
1267 |
$this->highest_fetched_row[$result_value] =
|
|
|
1268 |
max($this->highest_fetched_row[$result_value], $rownum);
|
|
|
1269 |
}
|
|
|
1270 |
|
|
|
1271 |
if ($fetchmode & MDB_FETCHMODE_ASSOC) {
|
|
|
1272 |
$row = @pg_fetch_array($result, $rownum, PGSQL_ASSOC);
|
|
|
1273 |
if (is_array($row) && $this->options['optimize'] == 'portability') {
|
|
|
1274 |
$row = array_change_key_case($row, CASE_LOWER);
|
|
|
1275 |
}
|
|
|
1276 |
} else {
|
|
|
1277 |
$row = @pg_fetch_row($result, $rownum);
|
|
|
1278 |
}
|
|
|
1279 |
|
|
|
1280 |
if (!$row) {
|
|
|
1281 |
if ($this->options['autofree']) {
|
|
|
1282 |
$this->freeResult($result);
|
|
|
1283 |
}
|
|
|
1284 |
return(NULL);
|
|
|
1285 |
}
|
|
|
1286 |
if (isset($this->result_types[$result_value])) {
|
|
|
1287 |
$row = $this->convertResultRow($result, $row);
|
|
|
1288 |
}
|
|
|
1289 |
return($row);
|
|
|
1290 |
}
|
|
|
1291 |
|
|
|
1292 |
// }}}
|
|
|
1293 |
// {{{ nextResult()
|
|
|
1294 |
|
|
|
1295 |
/**
|
|
|
1296 |
* Move the internal pgsql result pointer to the next available result
|
|
|
1297 |
*
|
|
|
1298 |
* @param a valid fbsql result resource
|
|
|
1299 |
* @return true if a result is available otherwise return false
|
|
|
1300 |
* @access public
|
|
|
1301 |
*/
|
|
|
1302 |
function nextResult($result)
|
|
|
1303 |
{
|
|
|
1304 |
return(FALSE);
|
|
|
1305 |
}
|
|
|
1306 |
|
|
|
1307 |
// }}}
|
|
|
1308 |
// {{{ tableInfo()
|
|
|
1309 |
|
|
|
1310 |
/**
|
|
|
1311 |
* returns meta data about the result set
|
|
|
1312 |
*
|
|
|
1313 |
* @param mixed $resource PostgreSQL result identifier or table name
|
|
|
1314 |
* @param mixed $mode depends on implementation
|
|
|
1315 |
* @return array an nested array, or a MDB error
|
|
|
1316 |
* @access public
|
|
|
1317 |
*/
|
|
|
1318 |
function tableInfo($result, $mode = NULL)
|
|
|
1319 |
{
|
|
|
1320 |
$count = 0;
|
|
|
1321 |
$id = 0;
|
|
|
1322 |
$res = array();
|
|
|
1323 |
|
|
|
1324 |
/**
|
|
|
1325 |
* depending on $mode, metadata returns the following values:
|
|
|
1326 |
*
|
|
|
1327 |
* - mode is FALSE (default):
|
|
|
1328 |
* $result[]:
|
|
|
1329 |
* [0]['table'] table name
|
|
|
1330 |
* [0]['name'] field name
|
|
|
1331 |
* [0]['type'] field type
|
|
|
1332 |
* [0]['len'] field length
|
|
|
1333 |
* [0]['flags'] field flags
|
|
|
1334 |
*
|
|
|
1335 |
* - mode is MDB_TABLEINFO_ORDER
|
|
|
1336 |
* $result[]:
|
|
|
1337 |
* ['num_fields'] number of metadata records
|
|
|
1338 |
* [0]['table'] table name
|
|
|
1339 |
* [0]['name'] field name
|
|
|
1340 |
* [0]['type'] field type
|
|
|
1341 |
* [0]['len'] field length
|
|
|
1342 |
* [0]['flags'] field flags
|
|
|
1343 |
* ['order'][field name] index of field named 'field name'
|
|
|
1344 |
* The last one is used, if you have a field name, but no index.
|
|
|
1345 |
* Test: if (isset($result['meta']['myfield'])) { ...
|
|
|
1346 |
*
|
|
|
1347 |
* - mode is MDB_TABLEINFO_ORDERTABLE
|
|
|
1348 |
* the same as above. but additionally
|
|
|
1349 |
* ['ordertable'][table name][field name] index of field
|
|
|
1350 |
* named 'field name'
|
|
|
1351 |
*
|
|
|
1352 |
* this is, because if you have fields from different
|
|
|
1353 |
* tables with the same field name * they override each
|
|
|
1354 |
* other with MDB_TABLEINFO_ORDER
|
|
|
1355 |
*
|
|
|
1356 |
* you can combine MDB_TABLEINFO_ORDER and
|
|
|
1357 |
* MDB_TABLEINFO_ORDERTABLE with MDB_TABLEINFO_ORDER |
|
|
|
1358 |
* MDB_TABLEINFO_ORDERTABLE * or with MDB_TABLEINFO_FULL
|
|
|
1359 |
**/
|
|
|
1360 |
|
|
|
1361 |
// if $result is a string, then we want information about a
|
|
|
1362 |
// table without a resultset
|
|
|
1363 |
if (is_string($result)) {
|
|
|
1364 |
$id = @pg_exec($this->connection, "SELECT * FROM $result LIMIT 0");
|
|
|
1365 |
if (empty($id)) {
|
|
|
1366 |
return($this->pgsqlRaiseError());
|
|
|
1367 |
}
|
|
|
1368 |
} else { // else we want information about a resultset
|
|
|
1369 |
$id = $result;
|
|
|
1370 |
if (empty($id)) {
|
|
|
1371 |
return($this->pgsqlRaiseError());
|
|
|
1372 |
}
|
|
|
1373 |
}
|
|
|
1374 |
|
|
|
1375 |
$count = @pg_numfields($id);
|
|
|
1376 |
|
|
|
1377 |
// made this IF due to performance (one if is faster than $count if's)
|
|
|
1378 |
if (empty($mode)) {
|
|
|
1379 |
for ($i = 0; $i < $count; $i++) {
|
|
|
1380 |
$res[$i]['table'] = (is_string($result)) ? $result : '';
|
|
|
1381 |
$res[$i]['name'] = @pg_fieldname ($id, $i);
|
|
|
1382 |
$res[$i]['type'] = @pg_fieldtype ($id, $i);
|
|
|
1383 |
$res[$i]['len'] = @pg_fieldsize ($id, $i);
|
|
|
1384 |
$res[$i]['flags'] = (is_string($result)) ? $this->_pgFieldflags($id, $i, $result) : '';
|
|
|
1385 |
}
|
|
|
1386 |
} else { // full
|
|
|
1387 |
$res['num_fields'] = $count;
|
|
|
1388 |
|
|
|
1389 |
for ($i = 0; $i < $count; $i++) {
|
|
|
1390 |
$res[$i]['table'] = (is_string($result)) ? $result : '';
|
|
|
1391 |
$res[$i]['name'] = @pg_fieldname ($id, $i);
|
|
|
1392 |
$res[$i]['type'] = @pg_fieldtype ($id, $i);
|
|
|
1393 |
$res[$i]['len'] = @pg_fieldsize ($id, $i);
|
|
|
1394 |
$res[$i]['flags'] = (is_string($result)) ? $this->_pgFieldFlags($id, $i, $result) : '';
|
|
|
1395 |
if ($mode & MDB_TABLEINFO_ORDER) {
|
|
|
1396 |
$res['order'][$res[$i]['name']] = $i;
|
|
|
1397 |
}
|
|
|
1398 |
if ($mode & MDB_TABLEINFO_ORDERTABLE) {
|
|
|
1399 |
$res['ordertable'][$res[$i]['table']][$res[$i]['name']] = $i;
|
|
|
1400 |
}
|
|
|
1401 |
}
|
|
|
1402 |
}
|
|
|
1403 |
|
|
|
1404 |
// free the result only if we were called on a table
|
|
|
1405 |
if (is_string($result) && is_resource($id)) {
|
|
|
1406 |
@pg_freeresult($id);
|
|
|
1407 |
}
|
|
|
1408 |
return($res);
|
|
|
1409 |
}
|
|
|
1410 |
|
|
|
1411 |
// }}}
|
|
|
1412 |
// {{{ _pgFieldFlags()
|
|
|
1413 |
|
|
|
1414 |
/**
|
|
|
1415 |
* Flags of a Field
|
|
|
1416 |
*
|
|
|
1417 |
* @param int $resource PostgreSQL result identifier
|
|
|
1418 |
* @param int $num_field the field number
|
|
|
1419 |
* @return string The flags of the field ('not_null', 'default_xx', 'primary_key',
|
|
|
1420 |
* 'unique' and 'multiple_key' are supported)
|
|
|
1421 |
* @access private
|
|
|
1422 |
**/
|
|
|
1423 |
function _pgFieldFlags($resource, $num_field, $table_name)
|
|
|
1424 |
{
|
|
|
1425 |
$field_name = @pg_fieldname($resource, $num_field);
|
|
|
1426 |
|
|
|
1427 |
$result = pg_exec($this->connection, "SELECT f.attnotnull, f.atthasdef
|
|
|
1428 |
FROM pg_attribute f, pg_class tab, pg_type typ
|
|
|
1429 |
WHERE tab.relname = typ.typname
|
|
|
1430 |
AND typ.typrelid = f.attrelid
|
|
|
1431 |
AND f.attname = '$field_name'
|
|
|
1432 |
AND tab.relname = '$table_name'");
|
|
|
1433 |
if (@pg_numrows($result) > 0) {
|
|
|
1434 |
$row = @pg_fetch_row($result, 0);
|
|
|
1435 |
$flags = ($row[0] == 't') ? 'not_null ' : '';
|
|
|
1436 |
|
|
|
1437 |
if ($row[1] == 't') {
|
|
|
1438 |
$result = @pg_exec($this->connection, "SELECT a.adsrc
|
|
|
1439 |
FROM pg_attribute f, pg_class tab, pg_type typ, pg_attrdef a
|
|
|
1440 |
WHERE tab.relname = typ.typname AND typ.typrelid = f.attrelid
|
|
|
1441 |
AND f.attrelid = a.adrelid AND f.attname = '$field_name'
|
|
|
1442 |
AND tab.relname = '$table_name'");
|
|
|
1443 |
$row = @pg_fetch_row($result, 0);
|
|
|
1444 |
$num = str_replace('\'', '', $row[0]);
|
|
|
1445 |
|
|
|
1446 |
$flags .= "default_$num ";
|
|
|
1447 |
}
|
|
|
1448 |
}
|
|
|
1449 |
$result = @pg_exec($this->connection, "SELECT i.indisunique, i.indisprimary, i.indkey
|
|
|
1450 |
FROM pg_attribute f, pg_class tab, pg_type typ, pg_index i
|
|
|
1451 |
WHERE tab.relname = typ.typname
|
|
|
1452 |
AND typ.typrelid = f.attrelid
|
|
|
1453 |
AND f.attrelid = i.indrelid
|
|
|
1454 |
AND f.attname = '$field_name'
|
|
|
1455 |
AND tab.relname = '$table_name'");
|
|
|
1456 |
$count = @pg_numrows($result);
|
|
|
1457 |
|
|
|
1458 |
for ($i = 0; $i < $count ; $i++) {
|
|
|
1459 |
$row = @pg_fetch_row($result, $i);
|
|
|
1460 |
$keys = explode(' ', $row[2]);
|
|
|
1461 |
|
|
|
1462 |
if (in_array($num_field + 1, $keys)) {
|
|
|
1463 |
$flags .= ($row[0] == 't') ? 'unique ' : '';
|
|
|
1464 |
$flags .= ($row[1] == 't') ? 'primary ' : '';
|
|
|
1465 |
if (count($keys) > 1)
|
|
|
1466 |
$flags .= 'multiple_key ';
|
|
|
1467 |
}
|
|
|
1468 |
}
|
|
|
1469 |
|
|
|
1470 |
return trim($flags);
|
|
|
1471 |
}
|
|
|
1472 |
}
|
|
|
1473 |
|
|
|
1474 |
?>
|