egroupware/phpgwapi/inc/adodb/drivers/adodb-postgres7.inc.php

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<?php
/*
V5.11 5 May 2010 (c) 2000-2010 John Lim (jlim#natsoft.com). All rights reserved.
Released under both BSD license and Lesser GPL library license.
Whenever there is any discrepancy between the two licenses,
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the BSD license will take precedence.
Set tabs to 4.
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Postgres7 support.
28 Feb 2001: Currently indicate that we support LIMIT
01 Dec 2001: dannym added support for default values
*/
// security - hide paths
if (!defined('ADODB_DIR')) die();
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include_once(ADODB_DIR."/drivers/adodb-postgres64.inc.php");
class ADODB_postgres7 extends ADODB_postgres64 {
var $databaseType = 'postgres7';
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var $hasLimit = true; // set to true for pgsql 6.5+ only. support pgsql/mysql SELECT * FROM TABLE LIMIT 10
var $ansiOuter = true;
var $charSet = true; //set to true for Postgres 7 and above - PG client supports encodings
function ADODB_postgres7()
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{
$this->ADODB_postgres64();
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if (ADODB_ASSOC_CASE !== 2) {
$this->rsPrefix .= 'assoc_';
}
$this->_bindInputArray = PHP_VERSION >= 5.1;
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}
// the following should be compat with postgresql 7.2,
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// which makes obsolete the LIMIT limit,offset syntax
function SelectLimit($sql,$nrows=-1,$offset=-1,$inputarr=false,$secs2cache=0)
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{
$offsetStr = ($offset >= 0) ? " OFFSET ".((integer)$offset) : '';
$limitStr = ($nrows >= 0) ? " LIMIT ".((integer)$nrows) : '';
if ($secs2cache)
$rs = $this->CacheExecute($secs2cache,$sql."$limitStr$offsetStr",$inputarr);
else
$rs = $this->Execute($sql."$limitStr$offsetStr",$inputarr);
return $rs;
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}
/*
function Prepare($sql)
{
$info = $this->ServerInfo();
if ($info['version']>=7.3) {
return array($sql,false);
}
return $sql;
}
*/
/*
I discovered that the MetaForeignKeys method no longer worked for Postgres 8.3.
I went ahead and modified it to work for both 8.2 and 8.3.
Please feel free to include this change in your next release of adodb.
William Kolodny [William.Kolodny#gt-t.net]
*/
function MetaForeignKeys($table, $owner=false, $upper=false)
{
$sql="
SELECT fum.ftblname AS lookup_table, split_part(fum.rf, ')'::text, 1) AS lookup_field,
fum.ltable AS dep_table, split_part(fum.lf, ')'::text, 1) AS dep_field
FROM (
SELECT fee.ltable, fee.ftblname, fee.consrc, split_part(fee.consrc,'('::text, 2) AS lf,
split_part(fee.consrc, '('::text, 3) AS rf
FROM (
SELECT foo.relname AS ltable, foo.ftblname,
pg_get_constraintdef(foo.oid) AS consrc
FROM (
SELECT c.oid, c.conname AS name, t.relname, ft.relname AS ftblname
FROM pg_constraint c
JOIN pg_class t ON (t.oid = c.conrelid)
JOIN pg_class ft ON (ft.oid = c.confrelid)
JOIN pg_namespace nft ON (nft.oid = ft.relnamespace)
LEFT JOIN pg_description ds ON (ds.objoid = c.oid)
JOIN pg_namespace n ON (n.oid = t.relnamespace)
WHERE c.contype = 'f'::\"char\"
ORDER BY t.relname, n.nspname, c.conname, c.oid
) foo
) fee) fum
WHERE fum.ltable='".strtolower($table)."'
ORDER BY fum.ftblname, fum.ltable, split_part(fum.lf, ')'::text, 1)
";
$rs = $this->Execute($sql);
if (!$rs || $rs->EOF) return false;
$a = array();
while (!$rs->EOF) {
if ($upper) {
$a[strtoupper($rs->Fields('lookup_table'))][] = strtoupper(str_replace('"','',$rs->Fields('dep_field').'='.$rs->Fields('lookup_field')));
} else {
$a[$rs->Fields('lookup_table')][] = str_replace('"','',$rs->Fields('dep_field').'='.$rs->Fields('lookup_field'));
}
$rs->MoveNext();
}
return $a;
}
// from Edward Jaramilla, improved version - works on pg 7.4
function _old_MetaForeignKeys($table, $owner=false, $upper=false)
{
$sql = 'SELECT t.tgargs as args
FROM
pg_trigger t,pg_class c,pg_proc p
WHERE
t.tgenabled AND
t.tgrelid = c.oid AND
t.tgfoid = p.oid AND
p.proname = \'RI_FKey_check_ins\' AND
c.relname = \''.strtolower($table).'\'
ORDER BY
t.tgrelid';
$rs = $this->Execute($sql);
if (!$rs || $rs->EOF) return false;
$arr = $rs->GetArray();
$a = array();
foreach($arr as $v) {
$data = explode(chr(0), $v['args']);
$size = count($data)-1; //-1 because the last node is empty
for($i = 4; $i < $size; $i++) {
if ($upper)
$a[strtoupper($data[2])][] = strtoupper($data[$i].'='.$data[++$i]);
else
$a[$data[2]][] = $data[$i].'='.$data[++$i];
}
}
return $a;
}
function _query($sql,$inputarr=false)
{
if (! $this->_bindInputArray) {
// We don't have native support for parameterized queries, so let's emulate it at the parent
return ADODB_postgres64::_query($sql, $inputarr);
}
$this->_errorMsg = false;
// -- added Cristiano da Cunha Duarte
if ($inputarr) {
$sqlarr = explode('?',trim($sql));
$sql = '';
$i = 1;
$last = sizeof($sqlarr)-1;
foreach($sqlarr as $v) {
if ($last < $i) $sql .= $v;
else $sql .= $v.' $'.$i;
$i++;
}
$rez = pg_query_params($this->_connectionID,$sql, $inputarr);
} else {
$rez = pg_query($this->_connectionID,$sql);
}
// check if no data returned, then no need to create real recordset
if ($rez && pg_numfields($rez) <= 0) {
if (is_resource($this->_resultid) && get_resource_type($this->_resultid) === 'pgsql result') {
pg_freeresult($this->_resultid);
}
$this->_resultid = $rez;
return true;
}
return $rez;
}
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// this is a set of functions for managing client encoding - very important if the encodings
// of your database and your output target (i.e. HTML) don't match
//for instance, you may have UNICODE database and server it on-site as WIN1251 etc.
// GetCharSet - get the name of the character set the client is using now
// the functions should work with Postgres 7.0 and above, the set of charsets supported
// depends on compile flags of postgres distribution - if no charsets were compiled into the server
// it will return 'SQL_ANSI' always
function GetCharSet()
{
//we will use ADO's builtin property charSet
$this->charSet = @pg_client_encoding($this->_connectionID);
if (!$this->charSet) {
return false;
} else {
return $this->charSet;
}
}
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// SetCharSet - switch the client encoding
function SetCharSet($charset_name)
{
$this->GetCharSet();
if ($this->charSet !== $charset_name) {
$if = pg_set_client_encoding($this->_connectionID, $charset_name);
if ($if == "0" & $this->GetCharSet() == $charset_name) {
return true;
} else return false;
} else return true;
}
}
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/*--------------------------------------------------------------------------------------
Class Name: Recordset
--------------------------------------------------------------------------------------*/
class ADORecordSet_postgres7 extends ADORecordSet_postgres64{
var $databaseType = "postgres7";
function ADORecordSet_postgres7($queryID,$mode=false)
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{
$this->ADORecordSet_postgres64($queryID,$mode);
}
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// 10% speedup to move MoveNext to child class
function MoveNext()
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{
if (!$this->EOF) {
$this->_currentRow++;
if ($this->_numOfRows < 0 || $this->_numOfRows > $this->_currentRow) {
$this->fields = @pg_fetch_array($this->_queryID,$this->_currentRow,$this->fetchMode);
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if (is_array($this->fields)) {
if ($this->fields && isset($this->_blobArr)) $this->_fixblobs();
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return true;
}
}
$this->fields = false;
$this->EOF = true;
}
return false;
}
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}
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class ADORecordSet_assoc_postgres7 extends ADORecordSet_postgres64{
var $databaseType = "postgres7";
function ADORecordSet_assoc_postgres7($queryID,$mode=false)
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{
$this->ADORecordSet_postgres64($queryID,$mode);
}
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function _fetch()
{
if ($this->_currentRow >= $this->_numOfRows && $this->_numOfRows >= 0)
return false;
$this->fields = @pg_fetch_array($this->_queryID,$this->_currentRow,$this->fetchMode);
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if ($this->fields) {
if (isset($this->_blobArr)) $this->_fixblobs();
$this->_updatefields();
}
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return (is_array($this->fields));
}
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// Create associative array
function _updatefields()
{
if (ADODB_ASSOC_CASE == 2) return; // native
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$arr = array();
$lowercase = (ADODB_ASSOC_CASE == 0);
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foreach($this->fields as $k => $v) {
if (is_integer($k)) $arr[$k] = $v;
else {
if ($lowercase)
$arr[strtolower($k)] = $v;
else
$arr[strtoupper($k)] = $v;
}
}
$this->fields = $arr;
}
function MoveNext()
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{
if (!$this->EOF) {
$this->_currentRow++;
if ($this->_numOfRows < 0 || $this->_numOfRows > $this->_currentRow) {
$this->fields = @pg_fetch_array($this->_queryID,$this->_currentRow,$this->fetchMode);
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if (is_array($this->fields)) {
if ($this->fields) {
if (isset($this->_blobArr)) $this->_fixblobs();
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$this->_updatefields();
}
return true;
}
}
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$this->fields = false;
$this->EOF = true;
}
return false;
}
}
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?>