Search moodle.org's
Developer Documentation

See Release Notes

  • Bug fixes for general core bugs in 3.11.x will end 14 Nov 2022 (12 months plus 6 months extension).
  • Bug fixes for security issues in 3.11.x will end 13 Nov 2023 (18 months plus 12 months extension).
  • PHP version: minimum PHP 7.3.0 Note: minimum PHP version has increased since Moodle 3.10. PHP 7.4.x is supported too.
<?php
< /* < @version v5.21.0 2021-02-27 < @copyright (c) 2000-2013 John Lim (jlim#natsoft.com). All rights reserved. < @copyright (c) 2014 Damien Regad, Mark Newnham and the ADOdb community < Released under both BSD license and Lesser GPL library license. < Whenever there is any discrepancy between the two licenses, < the BSD license will take precedence. < Set tabs to 8. < < Original version derived from Alberto Cerezal (acerezalp@dbnet.es) - DBNet Informatica & Comunicaciones. < 08 Nov 2000 jlim - Minor corrections, removing mysql stuff < 09 Nov 2000 jlim - added insertid support suggested by "Christopher Kings-Lynne" <chriskl@familyhealth.com.au> < jlim - changed concat operator to || and data types to MetaType to match documented pgsql types < see http://www.postgresql.org/devel-corner/docs/postgres/datatype.htm < 22 Nov 2000 jlim - added changes to FetchField() and MetaTables() contributed by "raser" <raser@mail.zen.com.tw> < 27 Nov 2000 jlim - added changes to _connect/_pconnect from ideas by "Lennie" <leen@wirehub.nl> < 15 Dec 2000 jlim - added changes suggested by Additional code changes by "Eric G. Werk" egw@netguide.dk. < 31 Jan 2002 jlim - finally installed postgresql. testing < 01 Mar 2001 jlim - Freek Dijkstra changes, also support for text type < < See http://www.varlena.com/varlena/GeneralBits/47.php < < -- What indexes are on my table? < select * from pg_indexes where tablename = 'tablename'; < < -- What triggers are on my table? < select c.relname as "Table", t.tgname as "Trigger Name", < t.tgconstrname as "Constraint Name", t.tgenabled as "Enabled", < t.tgisconstraint as "Is Constraint", cc.relname as "Referenced Table", < p.proname as "Function Name" < from pg_trigger t, pg_class c, pg_class cc, pg_proc p < where t.tgfoid = p.oid and t.tgrelid = c.oid < and t.tgconstrrelid = cc.oid < and c.relname = 'tablename'; < < -- What constraints are on my table? < select r.relname as "Table", c.conname as "Constraint Name", < contype as "Constraint Type", conkey as "Key Columns", < confkey as "Foreign Columns", consrc as "Source" < from pg_class r, pg_constraint c < where r.oid = c.conrelid < and relname = 'tablename'; <
> /** > * ADOdb PostgreSQL 6.4 driver > * > * This file is part of ADOdb, a Database Abstraction Layer library for PHP. > * > * @package ADOdb > * @link https://adodb.org Project's web site and documentation > * @link https://github.com/ADOdb/ADOdb Source code and issue tracker > * > * The ADOdb Library is dual-licensed, released under both the BSD 3-Clause > * and the GNU Lesser General Public Licence (LGPL) v2.1 or, at your option, > * any later version. This means you can use it in proprietary products. > * See the LICENSE.md file distributed with this source code for details. > * @license BSD-3-Clause > * @license LGPL-2.1-or-later > * > * @copyright 2000-2013 John Lim > * @copyright 2014 Damien Regad, Mark Newnham and the ADOdb community
*/ // security - hide paths if (!defined('ADODB_DIR')) die();
< function adodb_addslashes($s) < { < $len = strlen($s); < if ($len == 0) return "''"; < if (strncmp($s,"'",1) === 0 && substr($s,$len-1) == "'") return $s; // already quoted < < return "'".addslashes($s)."'"; < } <
class ADODB_postgres64 extends ADOConnection{ var $databaseType = 'postgres64'; var $dataProvider = 'postgres'; var $hasInsertID = true;
> /** @var PgSql\Connection|resource|false */
var $_resultid = false; var $concat_operator='||'; var $metaDatabasesSQL = "select datname from pg_database where datname not in ('template0','template1') order by 1"; var $metaTablesSQL = "select tablename,'T' from pg_tables where tablename not like 'pg\_%' and tablename not in ('sql_features', 'sql_implementation_info', 'sql_languages', 'sql_packages', 'sql_sizing', 'sql_sizing_profiles') union select viewname,'V' from pg_views where viewname not like 'pg\_%'"; //"select tablename from pg_tables where tablename not like 'pg_%' order by 1"; var $isoDates = true; // accepts dates in ISO format var $sysDate = "CURRENT_DATE"; var $sysTimeStamp = "CURRENT_TIMESTAMP"; var $blobEncodeType = 'C'; var $metaColumnsSQL = "SELECT a.attname,t.typname,a.attlen,a.atttypmod,a.attnotnull,a.atthasdef,a.attnum FROM pg_class c, pg_attribute a,pg_type t WHERE relkind in ('r','v') AND (c.relname='%s' or c.relname = lower('%s')) and a.attname not like '....%%' AND a.attnum > 0 AND a.atttypid = t.oid AND a.attrelid = c.oid ORDER BY a.attnum"; // used when schema defined var $metaColumnsSQL1 = "SELECT a.attname, t.typname, a.attlen, a.atttypmod, a.attnotnull, a.atthasdef, a.attnum FROM pg_class c, pg_attribute a, pg_type t, pg_namespace n WHERE relkind in ('r','v') AND (c.relname='%s' or c.relname = lower('%s')) and c.relnamespace=n.oid and n.nspname='%s' and a.attname not like '....%%' AND a.attnum > 0 AND a.atttypid = t.oid AND a.attrelid = c.oid ORDER BY a.attnum"; // get primary key etc -- from Freek Dijkstra var $metaKeySQL = "SELECT ic.relname AS index_name, a.attname AS column_name,i.indisunique AS unique_key, i.indisprimary AS primary_key FROM pg_class bc, pg_class ic, pg_index i, pg_attribute a WHERE bc.oid = i.indrelid AND ic.oid = i.indexrelid AND (i.indkey[0] = a.attnum OR i.indkey[1] = a.attnum OR i.indkey[2] = a.attnum OR i.indkey[3] = a.attnum OR i.indkey[4] = a.attnum OR i.indkey[5] = a.attnum OR i.indkey[6] = a.attnum OR i.indkey[7] = a.attnum) AND a.attrelid = bc.oid AND bc.relname = '%s'"; var $hasAffectedRows = true; var $hasLimit = false; // set to true for pgsql 7 only. support pgsql/mysql SELECT * FROM TABLE LIMIT 10 // below suggested by Freek Dijkstra var $true = 'TRUE'; // string that represents TRUE for a database var $false = 'FALSE'; // string that represents FALSE for a database var $fmtDate = "'Y-m-d'"; // used by DBDate() as the default date format used by the database var $fmtTimeStamp = "'Y-m-d H:i:s'"; // used by DBTimeStamp as the default timestamp fmt. var $hasMoveFirst = true; var $hasGenID = true; var $_genIDSQL = "SELECT NEXTVAL('%s')"; var $_genSeqSQL = "CREATE SEQUENCE %s START %s"; var $_dropSeqSQL = "DROP SEQUENCE %s"; var $metaDefaultsSQL = "SELECT d.adnum as num, d.adsrc as def from pg_attrdef d, pg_class c where d.adrelid=c.oid and c.relname='%s' order by d.adnum"; var $random = 'random()'; /// random function var $autoRollback = true; // apparently pgsql does not autorollback properly before php 4.3.4 // http://bugs.php.net/bug.php?id=25404 var $uniqueIisR = true; var $_bindInputArray = false; // requires postgresql 7.3+ and ability to modify database var $disableBlobs = false; // set to true to disable blob checking, resulting in 2-5% improvement in performance. /** @var int $_pnum Number of the last assigned query parameter {@see param()} */ var $_pnum = 0; // The last (fmtTimeStamp is not entirely correct: // PostgreSQL also has support for time zones, // and writes these time in this format: "2001-03-01 18:59:26+02". // There is no code for the "+02" time zone information, so I just left that out. // I'm not familiar enough with both ADODB as well as Postgres // to know what the concequences are. The other values are correct (wheren't in 0.94) // -- Freek Dijkstra /** * Retrieve Server information. * In addition to server version and description, the function also returns * the client version. * @param bool $detailed If true, retrieve detailed version string (executes * a SQL query) in addition to the version number * @return array|bool Server info or false if version could not be retrieved * e.g. if there is no active connection */ function ServerInfo($detailed = true) { if (empty($this->version['version'])) { // We don't have a connection, so we can't retrieve server info if (!$this->_connectionID) { return false; } $version = pg_version($this->_connectionID); $this->version = array( // If PHP has been compiled with PostgreSQL 7.3 or lower, then // server version is not set so we use pg_parameter_status() // which includes logic to obtain values server_version 'version' => isset($version['server']) ? $version['server'] : pg_parameter_status($this->_connectionID, 'server_version'), 'client' => $version['client'], 'description' => null, ); } if ($detailed && $this->version['description'] === null) { $this->version['description'] = $this->GetOne('select version()'); } return $this->version; } function IfNull( $field, $ifNull ) { return " coalesce($field, $ifNull) "; } // get the last id - never tested function pg_insert_id($tablename,$fieldname) { $result=pg_query($this->_connectionID, 'SELECT last_value FROM '. $tablename .'_'. $fieldname .'_seq'); if ($result) { $arr = @pg_fetch_row($result,0); pg_free_result($result); if (isset($arr[0])) return $arr[0]; } return false; } /** * Warning from http://www.php.net/manual/function.pg-getlastoid.php: * Using a OID as a unique identifier is not generally wise. * Unless you are very careful, you might end up with a tuple having * a different OID if a database must be reloaded.
> * */ > * @inheritDoc
< function _insertid($table,$column)
> protected function _insertID($table = '', $column = '')
{
< if (!is_resource($this->_resultid) || get_resource_type($this->_resultid) !== 'pgsql result') return false;
> if ($this->_resultid === false) return false;
$oid = pg_last_oid($this->_resultid); // to really return the id, we need the table and column-name, else we can only return the oid != id return empty($table) || empty($column) ? $oid : $this->GetOne("SELECT $column FROM $table WHERE oid=".(int)$oid); } function _affectedrows() {
< if (!is_resource($this->_resultid) || get_resource_type($this->_resultid) !== 'pgsql result') return false;
> if ($this->_resultid === false) return false;
return pg_affected_rows($this->_resultid); } /**
< * @return true/false
> * @return bool
*/ function BeginTrans() { if ($this->transOff) return true; $this->transCnt += 1; return pg_query($this->_connectionID, 'begin '.$this->_transmode); } function RowLock($tables,$where,$col='1 as adodbignore') { if (!$this->transCnt) $this->BeginTrans(); return $this->GetOne("select $col from $tables where $where for update"); } // returns true/false. function CommitTrans($ok=true) { if ($this->transOff) return true; if (!$ok) return $this->RollbackTrans(); $this->transCnt -= 1; return pg_query($this->_connectionID, 'commit'); } // returns true/false function RollbackTrans() { if ($this->transOff) return true; $this->transCnt -= 1; return pg_query($this->_connectionID, 'rollback'); } function MetaTables($ttype=false,$showSchema=false,$mask=false) { $info = $this->ServerInfo(); if ($info['version'] >= 7.3) { $this->metaTablesSQL = " select table_name,'T' from information_schema.tables where table_schema not in ( 'pg_catalog','information_schema') union select table_name,'V' from information_schema.views where table_schema not in ( 'pg_catalog','information_schema') "; } if ($mask) { $save = $this->metaTablesSQL; $mask = $this->qstr(strtolower($mask)); if ($info['version']>=7.3) $this->metaTablesSQL = " select table_name,'T' from information_schema.tables where table_name like $mask and table_schema not in ( 'pg_catalog','information_schema') union select table_name,'V' from information_schema.views where table_name like $mask and table_schema not in ( 'pg_catalog','information_schema') "; else $this->metaTablesSQL = " select tablename,'T' from pg_tables where tablename like $mask union select viewname,'V' from pg_views where viewname like $mask"; } $ret = ADOConnection::MetaTables($ttype,$showSchema); if ($mask) { $this->metaTablesSQL = $save; } return $ret; } /** * Quotes a string to be sent to the database. * * Relies on pg_escape_string() * @link https://adodb.org/dokuwiki/doku.php?id=v5:reference:connection:qstr * * @param string $s The string to quote * @param bool $magic_quotes This param is not used since 5.21.0. * It remains for backwards compatibility. * * @return string Quoted string */ function qStr($s, $magic_quotes=false) { if (is_bool($s)) { return $s ? 'true' : 'false'; } if ($this->_connectionID) { return "'" . pg_escape_string($this->_connectionID, $s) . "'"; } else { return "'" . pg_escape_string($s) . "'"; } } // Format date column in sql string given an input format that understands Y M D function SQLDate($fmt, $col=false) { if (!$col) $col = $this->sysTimeStamp; $s = 'TO_CHAR('.$col.",'"; $len = strlen($fmt); for ($i=0; $i < $len; $i++) { $ch = $fmt[$i]; switch($ch) { case 'Y': case 'y': $s .= 'YYYY'; break; case 'Q': case 'q': $s .= 'Q'; break; case 'M': $s .= 'Mon'; break; case 'm': $s .= 'MM'; break; case 'D': case 'd': $s .= 'DD'; break; case 'H': $s.= 'HH24'; break; case 'h': $s .= 'HH'; break; case 'i': $s .= 'MI'; break; case 's': $s .= 'SS'; break; case 'a': case 'A': $s .= 'AM'; break; case 'w': $s .= 'D'; break; case 'l': $s .= 'DAY'; break; case 'W': $s .= 'WW'; break; default: // handle escape characters... if ($ch == '\\') { $i++; $ch = substr($fmt,$i,1); } if (strpos('-/.:;, ',$ch) !== false) $s .= $ch; else $s .= '"'.$ch.'"'; } } return $s. "')"; } /* * Load a Large Object from a file * - the procedure stores the object id in the table and imports the object using * postgres proprietary blob handling routines * * contributed by Mattia Rossi mattia@technologist.com * modified for safe mode by juraj chlebec */ function UpdateBlobFile($table,$column,$path,$where,$blobtype='BLOB') { pg_query($this->_connectionID, 'begin'); $fd = fopen($path,'r'); $contents = fread($fd,filesize($path)); fclose($fd); $oid = pg_lo_create($this->_connectionID); $handle = pg_lo_open($this->_connectionID, $oid, 'w'); pg_lo_write($handle, $contents); pg_lo_close($handle); // $oid = pg_lo_import ($path); pg_query($this->_connectionID, 'commit'); $rs = ADOConnection::UpdateBlob($table,$column,$oid,$where,$blobtype); $rez = !empty($rs); return $rez; } /* * Deletes/Unlinks a Blob from the database, otherwise it * will be left behind * * Returns TRUE on success or FALSE on failure. * * contributed by Todd Rogers todd#windfox.net */ function BlobDelete( $blob ) { pg_query($this->_connectionID, 'begin');
< $result = @pg_lo_unlink($blob);
> $result = @pg_lo_unlink($this->_connectionID, $blob);
pg_query($this->_connectionID, 'commit'); return( $result ); } /* Heuristic - not guaranteed to work. */ function GuessOID($oid) { if (strlen($oid)>16) return false; return is_numeric($oid); } /* * If an OID is detected, then we use pg_lo_* to open the oid file and read the * real blob from the db using the oid supplied as a parameter. If you are storing * blobs using bytea, we autodetect and process it so this function is not needed. * * contributed by Mattia Rossi mattia@technologist.com * * see http://www.postgresql.org/idocs/index.php?largeobjects.html * * Since adodb 4.54, this returns the blob, instead of sending it to stdout. Also * added maxsize parameter, which defaults to $db->maxblobsize if not defined. */ function BlobDecode($blob,$maxsize=false,$hastrans=true) { if (!$this->GuessOID($blob)) return $blob; if ($hastrans) pg_query($this->_connectionID,'begin'); $fd = @pg_lo_open($this->_connectionID,$blob,'r'); if ($fd === false) { if ($hastrans) pg_query($this->_connectionID,'commit'); return $blob; } if (!$maxsize) $maxsize = $this->maxblobsize; $realblob = @pg_lo_read($fd,$maxsize); @pg_lo_close($fd); if ($hastrans) pg_query($this->_connectionID,'commit'); return $realblob; } /** * Encode binary value prior to DB storage. * * See https://www.postgresql.org/docs/current/static/datatype-binary.html * * NOTE: SQL string literals (input strings) must be preceded with two * backslashes due to the fact that they must pass through two parsers in * the PostgreSQL backend. * * @param string $blob */ function BlobEncode($blob) { return pg_escape_bytea($this->_connectionID, $blob); } // assumes bytea for blob, and varchar for clob function UpdateBlob($table,$column,$val,$where,$blobtype='BLOB') { if ($blobtype == 'CLOB') { return $this->Execute("UPDATE $table SET $column=" . $this->qstr($val) . " WHERE $where"); } // do not use bind params which uses qstr(), as blobencode() already quotes data return $this->Execute("UPDATE $table SET $column='".$this->BlobEncode($val)."'::bytea WHERE $where"); } function OffsetDate($dayFraction,$date=false) { if (!$date) $date = $this->sysDate; else if (strncmp($date,"'",1) == 0) { $len = strlen($date); if (10 <= $len && $len <= 12) $date = 'date '.$date; else $date = 'timestamp '.$date; } return "($date+interval'".($dayFraction * 1440)." minutes')"; #return "($date+interval'$dayFraction days')"; } /** * Generate the SQL to retrieve MetaColumns data * @param string $table Table name * @param string $schema Schema name (can be blank) * @return string SQL statement to execute */ protected function _generateMetaColumnsSQL($table, $schema) { if ($schema) { return sprintf($this->metaColumnsSQL1, $table, $table, $schema); } else { return sprintf($this->metaColumnsSQL, $table, $table, $schema); } } // for schema support, pass in the $table param "$schema.$tabname". // converts field names to lowercase, $upper is ignored // see PHPLens Issue No: 14018 for more info function MetaColumns($table,$normalize=true) { global $ADODB_FETCH_MODE; $schema = false; $false = false; $this->_findschema($table,$schema); if ($normalize) $table = strtolower($table); $save = $ADODB_FETCH_MODE; $ADODB_FETCH_MODE = ADODB_FETCH_NUM; if ($this->fetchMode !== false) $savem = $this->SetFetchMode(false); $rs = $this->Execute($this->_generateMetaColumnsSQL($table, $schema)); if (isset($savem)) $this->SetFetchMode($savem); $ADODB_FETCH_MODE = $save; if ($rs === false) { return $false; } if (!empty($this->metaKeySQL)) { // If we want the primary keys, we have to issue a separate query // Of course, a modified version of the metaColumnsSQL query using a // LEFT JOIN would have been much more elegant, but postgres does // not support OUTER JOINS. So here is the clumsy way. $ADODB_FETCH_MODE = ADODB_FETCH_ASSOC; $rskey = $this->Execute(sprintf($this->metaKeySQL,($table))); // fetch all result in once for performance. $keys = $rskey->GetArray(); if (isset($savem)) $this->SetFetchMode($savem); $ADODB_FETCH_MODE = $save; $rskey->Close(); unset($rskey); } $rsdefa = array(); if (!empty($this->metaDefaultsSQL)) { $ADODB_FETCH_MODE = ADODB_FETCH_ASSOC; $sql = sprintf($this->metaDefaultsSQL, ($table)); $rsdef = $this->Execute($sql); if (isset($savem)) $this->SetFetchMode($savem); $ADODB_FETCH_MODE = $save; if ($rsdef) { while (!$rsdef->EOF) { $num = $rsdef->fields['num']; $s = $rsdef->fields['def']; if (strpos($s,'::')===false && substr($s, 0, 1) == "'") { /* quoted strings hack... for now... fixme */ $s = substr($s, 1); $s = substr($s, 0, strlen($s) - 1); } $rsdefa[$num] = $s; $rsdef->MoveNext(); } } else { ADOConnection::outp( "==> SQL => " . $sql); } unset($rsdef); } $retarr = array(); while (!$rs->EOF) { $fld = new ADOFieldObject(); $fld->name = $rs->fields[0]; $fld->type = $rs->fields[1]; $fld->max_length = $rs->fields[2]; $fld->attnum = $rs->fields[6]; if ($fld->max_length <= 0) $fld->max_length = $rs->fields[3]-4; if ($fld->max_length <= 0) $fld->max_length = -1; if ($fld->type == 'numeric') { $fld->scale = $fld->max_length & 0xFFFF; $fld->max_length >>= 16; } // dannym // 5 hasdefault; 6 num-of-column $fld->has_default = ($rs->fields[5] == 't'); if ($fld->has_default) { $fld->default_value = $rsdefa[$rs->fields[6]]; } //Freek $fld->not_null = $rs->fields[4] == 't'; // Freek if (is_array($keys)) { foreach($keys as $key) { if ($fld->name == $key['column_name'] AND $key['primary_key'] == 't') $fld->primary_key = true; if ($fld->name == $key['column_name'] AND $key['unique_key'] == 't') $fld->unique = true; // What name is more compatible? } } if ($ADODB_FETCH_MODE == ADODB_FETCH_NUM) $retarr[] = $fld; else $retarr[($normalize) ? strtoupper($fld->name) : $fld->name] = $fld; $rs->MoveNext(); } $rs->Close(); if (empty($retarr)) return $false; else return $retarr; } function param($name, $type='C') { if (!$name) { // Reset parameter number if $name is falsy $this->_pnum = 0; if ($name === false) { // and don't return placeholder if false (see #380) return ''; } } return '$' . ++$this->_pnum; } function MetaIndexes ($table, $primary = FALSE, $owner = false) { global $ADODB_FETCH_MODE; $schema = false; $this->_findschema($table,$schema); if ($schema) { // requires pgsql 7.3+ - pg_namespace used. $sql = ' SELECT c.relname as "Name", i.indisunique as "Unique", i.indkey as "Columns" FROM pg_catalog.pg_class c JOIN pg_catalog.pg_index i ON i.indexrelid=c.oid JOIN pg_catalog.pg_class c2 ON c2.oid=i.indrelid ,pg_namespace n WHERE (c2.relname=\'%s\' or c2.relname=lower(\'%s\')) and c.relnamespace=c2.relnamespace and c.relnamespace=n.oid and n.nspname=\'%s\''; } else { $sql = ' SELECT c.relname as "Name", i.indisunique as "Unique", i.indkey as "Columns" FROM pg_catalog.pg_class c JOIN pg_catalog.pg_index i ON i.indexrelid=c.oid JOIN pg_catalog.pg_class c2 ON c2.oid=i.indrelid WHERE (c2.relname=\'%s\' or c2.relname=lower(\'%s\'))'; } if ($primary == FALSE) { $sql .= ' AND i.indisprimary=false;'; } $save = $ADODB_FETCH_MODE; $ADODB_FETCH_MODE = ADODB_FETCH_NUM; if ($this->fetchMode !== FALSE) { $savem = $this->SetFetchMode(FALSE); } $rs = $this->Execute(sprintf($sql,$table,$table,$schema)); if (isset($savem)) { $this->SetFetchMode($savem); } $ADODB_FETCH_MODE = $save; if (!is_object($rs)) { $false = false; return $false; } $col_names = $this->MetaColumnNames($table,true,true); // 3rd param is use attnum, // see https://sourceforge.net/p/adodb/bugs/45/ $indexes = array(); while ($row = $rs->FetchRow()) { $columns = array(); foreach (explode(' ', $row[2]) as $col) { $columns[] = $col_names[$col]; } $indexes[$row[0]] = array( 'unique' => ($row[1] == 't'), 'columns' => $columns ); } return $indexes; }
< // returns true or false < // < // examples: < // $db->Connect("host=host1 user=user1 password=secret port=4341"); < // $db->Connect('host1','user1','secret');
> /** > * Connect to a database. > * > * Examples: > * $db->Connect("host=host1 user=user1 password=secret port=4341"); > * $db->Connect('host1:4341', 'user1', 'secret'); > * > * @param string $str pg_connect() Connection string or Hostname[:port] > * @param string $user (Optional) The username to connect as. > * @param string $pwd (Optional) The password to connect with. > * @param string $db (Optional) The name of the database to start in when connected. > * @param int $ctype Connection type > * @return bool|null True if connected successfully, false if connection failed, or > * null if the PostgreSQL extension is not loaded. > */
function _connect($str,$user='',$pwd='',$db='',$ctype=0) {
< if (!function_exists('pg_connect')) return null;
> if (!function_exists('pg_connect')) { > return null; > }
$this->_errorMsg = false;
> // If $user, $pwd and $db are all null, then $str is a pg_connect() if ($user || $pwd || $db) { > // connection string. Otherwise we expect it to be a hostname, $user = adodb_addslashes($user); > // with optional port separated by ':'
< $user = adodb_addslashes($user); < $pwd = adodb_addslashes($pwd); < if (strlen($db) == 0) $db = 'template1'; < $db = adodb_addslashes($db);
> // Hostname & port
< $host = explode(":", $str); < if ($host[0]) $str = "host=".adodb_addslashes($host[0]); < else $str = ''; < if (isset($host[1])) $str .= " port=$host[1]"; < else if (!empty($this->port)) $str .= " port=".$this->port; < } < if ($user) $str .= " user=".$user; < if ($pwd) $str .= " password=".$pwd; < if ($db) $str .= " dbname=".$db;
> $host = explode(':', $str); > if ($host[0]) { > $conn['host'] = $host[0]; > } > if (isset($host[1])) { > $conn['port'] = (int)$host[1]; > } elseif (!empty($this->port)) { > $conn['port'] = $this->port; > } > } > $conn['user'] = $user; > $conn['password'] = $pwd; > // @TODO not sure why we default to 'template1', pg_connect() uses the username when dbname is empty > $conn['dbname'] = $db ?: 'template1'; > > // Generate connection string > $str = ''; > foreach ($conn as $param => $value) { > // Escaping single quotes and backslashes per pg_connect() documentation > $str .= $param . "='" . addcslashes($value, "'\\") . "' "; > }
}
< < //if ($user) $linea = "user=$user host=$linea password=$pwd dbname=$db port=5432";
if ($ctype === 1) { // persistent $this->_connectionID = pg_pconnect($str); } else { if ($ctype === -1) { // nconnect, we trick pgsql ext by changing the connection str static $ncnt; if (empty($ncnt)) $ncnt = 1; else $ncnt += 1; $str .= str_repeat(' ',$ncnt); } $this->_connectionID = pg_connect($str); } if ($this->_connectionID === false) return false; $this->Execute("set datestyle='ISO'"); $info = $this->ServerInfo(false); if (version_compare($info['version'], '7.1', '>=')) { $this->_nestedSQL = true; } # PostgreSQL 9.0 changed the default output for bytea from 'escape' to 'hex' # PHP does not handle 'hex' properly ('x74657374' is returned as 't657374') # https://bugs.php.net/bug.php?id=59831 states this is in fact not a bug, # so we manually set bytea_output
< if (!empty($this->connection->noBlobs) && version_compare($info['version'], '9.0', '>=')) { < $version = pg_version($this->connectionID); < if (version_compare($info['client'], '9.2', '<')) {
> if (!empty($this->connection->noBlobs) > && version_compare($info['version'], '9.0', '>=') > && version_compare($info['client'], '9.2', '<') > ) {
$this->Execute('set bytea_output=escape'); }
< }
return true; } function _nconnect($argHostname, $argUsername, $argPassword, $argDatabaseName) { return $this->_connect($argHostname, $argUsername, $argPassword, $argDatabaseName,-1); } // returns true or false // // examples: // $db->PConnect("host=host1 user=user1 password=secret port=4341"); // $db->PConnect('host1','user1','secret'); function _pconnect($str,$user='',$pwd='',$db='') { return $this->_connect($str,$user,$pwd,$db,1); } // returns queryID or false function _query($sql,$inputarr=false) { $this->_pnum = 0; $this->_errorMsg = false; if ($inputarr) { /* It appears that PREPARE/EXECUTE is slower for many queries. For query executed 1000 times: "select id,firstname,lastname from adoxyz where firstname not like ? and lastname not like ? and id = ?" with plan = 1.51861286163 secs no plan = 1.26903700829 secs */ $plan = 'P'.md5($sql); $execp = ''; foreach($inputarr as $v) { if ($execp) $execp .= ','; if (is_string($v)) { if (strncmp($v,"'",1) !== 0) $execp .= $this->qstr($v); } else { $execp .= $v; } } if ($execp) $exsql = "EXECUTE $plan ($execp)"; else $exsql = "EXECUTE $plan";
< < $rez = @pg_execute($this->_connectionID,$exsql);
> $rez = @pg_query($this->_connectionID, $exsql);
if (!$rez) { # Perhaps plan does not exist? Prepare/compile plan. $params = ''; foreach($inputarr as $v) { if ($params) $params .= ','; if (is_string($v)) { $params .= 'VARCHAR'; } else if (is_integer($v)) { $params .= 'INTEGER'; } else { $params .= "REAL"; } } $sqlarr = explode('?',$sql); //print_r($sqlarr); $sql = ''; $i = 1; foreach($sqlarr as $v) { $sql .= $v.' $'.$i; $i++; } $s = "PREPARE $plan ($params) AS ".substr($sql,0,strlen($sql)-2); //adodb_pr($s);
< $rez = pg_execute($this->_connectionID,$s);
> $rez = pg_query($this->_connectionID, $s);
//echo $this->ErrorMsg(); } if ($rez)
< $rez = pg_execute($this->_connectionID,$exsql);
> $rez = pg_query($this->_connectionID, $exsql);
} else { //adodb_backtrace(); $rez = pg_query($this->_connectionID,$sql); } // check if no data returned, then no need to create real recordset if ($rez && pg_num_fields($rez) <= 0) {
< if (is_resource($this->_resultid) && get_resource_type($this->_resultid) === 'pgsql result') {
> if ($this->_resultid !== false) {
pg_free_result($this->_resultid); } $this->_resultid = $rez; return true; } return $rez; } function _errconnect() { if (defined('DB_ERROR_CONNECT_FAILED')) return DB_ERROR_CONNECT_FAILED; else return 'Database connection failed'; } /* Returns: the last error message from previous database operation */ function ErrorMsg() { if ($this->_errorMsg !== false) { return $this->_errorMsg; } if (!empty($this->_resultid)) { $this->_errorMsg = @pg_result_error($this->_resultid); if ($this->_errorMsg) { return $this->_errorMsg; } } if (!empty($this->_connectionID)) { $this->_errorMsg = @pg_last_error($this->_connectionID); } else { $this->_errorMsg = $this->_errconnect(); } return $this->_errorMsg; } function ErrorNo() { $e = $this->ErrorMsg(); if (strlen($e)) { return ADOConnection::MetaError($e); } return 0; } // returns true or false function _close() { if ($this->transCnt) $this->RollbackTrans(); if ($this->_resultid) { @pg_free_result($this->_resultid); $this->_resultid = false; } @pg_close($this->_connectionID); $this->_connectionID = false; return true; } /* * Maximum size of C field */ function CharMax() { return 1000000000; // should be 1 Gb? } /* * Maximum size of X field */ function TextMax() { return 1000000000; // should be 1 Gb? } } /*-------------------------------------------------------------------------------------- Class Name: Recordset --------------------------------------------------------------------------------------*/ class ADORecordSet_postgres64 extends ADORecordSet{ var $_blobArr; var $databaseType = "postgres64"; var $canSeek = true; function __construct($queryID, $mode=false) { if ($mode === false) { global $ADODB_FETCH_MODE; $mode = $ADODB_FETCH_MODE; } switch ($mode) { case ADODB_FETCH_NUM: $this->fetchMode = PGSQL_NUM; break; case ADODB_FETCH_ASSOC:$this->fetchMode = PGSQL_ASSOC; break; case ADODB_FETCH_DEFAULT: case ADODB_FETCH_BOTH: default: $this->fetchMode = PGSQL_BOTH; break; } $this->adodbFetchMode = $mode; // Parent's constructor parent::__construct($queryID); } function GetRowAssoc($upper = ADODB_ASSOC_CASE) { if ($this->fetchMode == PGSQL_ASSOC && $upper == ADODB_ASSOC_CASE_LOWER) { return $this->fields; } $row = ADORecordSet::GetRowAssoc($upper); return $row; }
< < function _initrs()
> function _initRS()
{ global $ADODB_COUNTRECS; $qid = $this->_queryID; $this->_numOfRows = ($ADODB_COUNTRECS)? @pg_num_rows($qid):-1; $this->_numOfFields = @pg_num_fields($qid); // cache types for blob decode check // apparently pg_field_type actually performs an sql query on the database to get the type. if (empty($this->connection->noBlobs)) for ($i=0, $max = $this->_numOfFields; $i < $max; $i++) { if (pg_field_type($qid,$i) == 'bytea') { $this->_blobArr[$i] = pg_field_name($qid,$i); } } }
< /* Use associative array to get fields array */ < function Fields($colname)
> function fields($colname)
{
< if ($this->fetchMode != PGSQL_NUM) return @$this->fields[$colname];
> if ($this->fetchMode != PGSQL_NUM) { > return @$this->fields[$colname]; > }
if (!$this->bind) { $this->bind = array(); for ($i=0; $i < $this->_numOfFields; $i++) { $o = $this->FetchField($i); $this->bind[strtoupper($o->name)] = $i; } } return $this->fields[$this->bind[strtoupper($colname)]]; }
< function FetchField($off = 0)
> function fetchField($fieldOffset = 0)
{ // offsets begin at 0 $o= new ADOFieldObject();
< $o->name = @pg_field_name($this->_queryID,$off); < $o->type = @pg_field_type($this->_queryID,$off); < $o->max_length = @pg_field_size($this->_queryID,$off);
> $o->name = @pg_field_name($this->_queryID, $fieldOffset); > $o->type = @pg_field_type($this->_queryID, $fieldOffset); > $o->max_length = @pg_field_size($this->_queryID, $fieldOffset);
return $o; } function _seek($row) { return @pg_fetch_row($this->_queryID,$row); } function _decode($blob) { if ($blob === NULL) return NULL; // eval('$realblob="'.str_replace(array('"','$'),array('\"','\$'),$blob).'";'); return pg_unescape_bytea($blob); }
< function _fixblobs()
> /** > * Fetches and prepares the RecordSet's fields. > * > * Fixes the blobs if there are any. > */ > protected function _prepFields()
{
> $this->fields = @pg_fetch_array($this->_queryID,$this->_currentRow,$this->fetchMode); if ($this->fetchMode == PGSQL_NUM || $this->fetchMode == PGSQL_BOTH) { > foreach($this->_blobArr as $k => $v) { > // Check prerequisites and bail early if we do not have what we need. $this->fields[$k] = ADORecordSet_postgres64::_decode($this->fields[$k]); > if (!isset($this->_blobArr) || $this->fields === false) { } > return; } > } if ($this->fetchMode == PGSQL_ASSOC || $this->fetchMode == PGSQL_BOTH) { >
foreach($this->_blobArr as $k => $v) { $this->fields[$v] = ADORecordSet_postgres64::_decode($this->fields[$v]); } } } // 10% speedup to move MoveNext to child class function MoveNext() { if (!$this->EOF) { $this->_currentRow++; if ($this->_numOfRows < 0 || $this->_numOfRows > $this->_currentRow) {
< $this->fields = @pg_fetch_array($this->_queryID,$this->_currentRow,$this->fetchMode); < if (is_array($this->fields) && $this->fields) { < if (isset($this->_blobArr)) $this->_fixblobs();
> $this->_prepfields(); > if ($this->fields !== false) {
return true; } } $this->fields = false; $this->EOF = true; } return false; } function _fetch() {
< < if ($this->_currentRow >= $this->_numOfRows && $this->_numOfRows >= 0)
> if ($this->_currentRow >= $this->_numOfRows && $this->_numOfRows >= 0) {
return false;
> }
< $this->fields = @pg_fetch_array($this->_queryID,$this->_currentRow,$this->fetchMode); < < if ($this->fields && isset($this->_blobArr)) $this->_fixblobs(); < < return (is_array($this->fields));
> $this->_prepfields(); > return $this->fields !== false;
} function _close() {
< if (!is_resource($this->_queryID) < || get_resource_type($this->_queryID) != 'pgsql result' < ) {
> if ($this->_queryID === false) {
return true; } return pg_free_result($this->_queryID); } function MetaType($t,$len=-1,$fieldobj=false) { if (is_object($t)) { $fieldobj = $t; $t = $fieldobj->type; $len = $fieldobj->max_length; }
< switch (strtoupper($t)) {
> > $t = strtoupper($t); > > if (array_key_exists($t,$this->connection->customActualTypes)) > return $this->connection->customActualTypes[$t]; > > switch ($t) {
case 'MONEY': // stupid, postgres expects money to be a string case 'INTERVAL': case 'CHAR': case 'CHARACTER': case 'VARCHAR': case 'NAME': case 'BPCHAR': case '_VARCHAR': case 'CIDR': case 'INET': case 'MACADDR':
> case 'UUID':
if ($len <= $this->blobSize) return 'C'; case 'TEXT': return 'X'; case 'IMAGE': // user defined type case 'BLOB': // user defined type case 'BIT': // This is a bit string, not a single bit, so don't return 'L' case 'VARBIT': case 'BYTEA': return 'B'; case 'BOOL': case 'BOOLEAN': return 'L'; case 'DATE': return 'D'; case 'TIMESTAMP WITHOUT TIME ZONE': case 'TIME': case 'DATETIME': case 'TIMESTAMP': case 'TIMESTAMPTZ': return 'T'; case 'SMALLINT': case 'BIGINT': case 'INTEGER': case 'INT8': case 'INT4': case 'INT2': if (isset($fieldobj) && empty($fieldobj->primary_key) && (!$this->connection->uniqueIisR || empty($fieldobj->unique))) return 'I'; case 'OID': case 'SERIAL': return 'R';
> > case 'NUMERIC': default: > case 'DECIMAL': return ADODB_DEFAULT_METATYPE; > case 'FLOAT4': } > case 'FLOAT8': } > return 'N';
}