📄 adodb.inc.php
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{
$rv = false;
$rs = &$this->CacheExecute($secs, $sql, $inputarr);
if ($rs) {
if ($trim) {
while (!$rs->EOF) {
$rv[] = trim(reset($rs->fields));
$rs->MoveNext();
}
} else {
while (!$rs->EOF) {
$rv[] = reset($rs->fields);
$rs->MoveNext();
}
}
$rs->Close();
}
return $rv;
}
/*
Calculate the offset of a date for a particular database and generate
appropriate SQL. Useful for calculating future/past dates and storing
in a database.
If dayFraction=1.5 means 1.5 days from now, 1.0/24 for 1 hour.
*/
function OffsetDate($dayFraction,$date=false)
{
if (!$date) $date = $this->sysDate;
return '('.$date.'+'.$dayFraction.')';
}
/**
*
* @param sql SQL statement
* @param [inputarr] input bind array
*/
function &GetArray($sql,$inputarr=false)
{
global $ADODB_COUNTRECS;
$savec = $ADODB_COUNTRECS;
$ADODB_COUNTRECS = false;
$rs =& $this->Execute($sql,$inputarr);
$ADODB_COUNTRECS = $savec;
if (!$rs)
if (defined('ADODB_PEAR')) return ADODB_PEAR_Error();
else {
$false = false;
return $false;
}
$arr =& $rs->GetArray();
$rs->Close();
return $arr;
}
function &CacheGetAll($secs2cache,$sql=false,$inputarr=false)
{
return $this->CacheGetArray($secs2cache,$sql,$inputarr);
}
function &CacheGetArray($secs2cache,$sql=false,$inputarr=false)
{
global $ADODB_COUNTRECS;
$savec = $ADODB_COUNTRECS;
$ADODB_COUNTRECS = false;
$rs =& $this->CacheExecute($secs2cache,$sql,$inputarr);
$ADODB_COUNTRECS = $savec;
if (!$rs)
if (defined('ADODB_PEAR')) return ADODB_PEAR_Error();
else {
$false = false;
return $false;
}
$arr =& $rs->GetArray();
$rs->Close();
return $arr;
}
/**
* Return one row of sql statement. Recordset is disposed for you.
*
* @param sql SQL statement
* @param [inputarr] input bind array
*/
function &GetRow($sql,$inputarr=false)
{
global $ADODB_COUNTRECS;
$crecs = $ADODB_COUNTRECS;
$ADODB_COUNTRECS = false;
$rs =& $this->Execute($sql,$inputarr);
$ADODB_COUNTRECS = $crecs;
if ($rs) {
if (!$rs->EOF) $arr = $rs->fields;
else $arr = array();
$rs->Close();
return $arr;
}
$false = false;
return $false;
}
function &CacheGetRow($secs2cache,$sql=false,$inputarr=false)
{
$rs =& $this->CacheExecute($secs2cache,$sql,$inputarr);
if ($rs) {
$arr = false;
if (!$rs->EOF) $arr = $rs->fields;
$rs->Close();
return $arr;
}
$false = false;
return $false;
}
/**
* Insert or replace a single record. Note: this is not the same as MySQL's replace.
* ADOdb's Replace() uses update-insert semantics, not insert-delete-duplicates of MySQL.
* Also note that no table locking is done currently, so it is possible that the
* record be inserted twice by two programs...
*
* $this->Replace('products', array('prodname' =>"'Nails'","price" => 3.99), 'prodname');
*
* $table table name
* $fieldArray associative array of data (you must quote strings yourself).
* $keyCol the primary key field name or if compound key, array of field names
* autoQuote set to true to use a hueristic to quote strings. Works with nulls and numbers
* but does not work with dates nor SQL functions.
* has_autoinc the primary key is an auto-inc field, so skip in insert.
*
* Currently blob replace not supported
*
* returns 0 = fail, 1 = update, 2 = insert
*/
function Replace($table, $fieldArray, $keyCol, $autoQuote=false, $has_autoinc=false)
{
global $ADODB_INCLUDED_LIB;
if (empty($ADODB_INCLUDED_LIB)) include_once(ADODB_DIR.'/adodb-lib.inc.php');
return _adodb_replace($this, $table, $fieldArray, $keyCol, $autoQuote, $has_autoinc);
}
/**
* Will select, getting rows from $offset (1-based), for $nrows.
* This simulates the MySQL "select * from table limit $offset,$nrows" , and
* the PostgreSQL "select * from table limit $nrows offset $offset". Note that
* MySQL and PostgreSQL parameter ordering is the opposite of the other.
* eg.
* CacheSelectLimit(15,'select * from table',3); will return rows 1 to 3 (1-based)
* CacheSelectLimit(15,'select * from table',3,2); will return rows 3 to 5 (1-based)
*
* BUG: Currently CacheSelectLimit fails with $sql with LIMIT or TOP clause already set
*
* @param [secs2cache] seconds to cache data, set to 0 to force query. This is optional
* @param sql
* @param [offset] is the row to start calculations from (1-based)
* @param [nrows] is the number of rows to get
* @param [inputarr] array of bind variables
* @return the recordset ($rs->databaseType == 'array')
*/
function &CacheSelectLimit($secs2cache,$sql,$nrows=-1,$offset=-1,$inputarr=false)
{
if (!is_numeric($secs2cache)) {
if ($sql === false) $sql = -1;
if ($offset == -1) $offset = false;
// sql, nrows, offset,inputarr
$rs =& $this->SelectLimit($secs2cache,$sql,$nrows,$offset,$this->cacheSecs);
} else {
if ($sql === false) ADOConnection::outp( "Warning: \$sql missing from CacheSelectLimit()");
$rs =& $this->SelectLimit($sql,$nrows,$offset,$inputarr,$secs2cache);
}
return $rs;
}
/**
* Flush cached recordsets that match a particular $sql statement.
* If $sql == false, then we purge all files in the cache.
*/
function CacheFlush($sql=false,$inputarr=false)
{
global $ADODB_CACHE_DIR;
if (strlen($ADODB_CACHE_DIR) > 1 && !$sql) {
if (strncmp(PHP_OS,'WIN',3) === 0) {
$cmd = 'del /s '.str_replace('/','\\',$ADODB_CACHE_DIR).'\adodb_*.cache';
} else {
//$cmd = 'find "'.$ADODB_CACHE_DIR.'" -type f -maxdepth 1 -print0 | xargs -0 rm -f';
$cmd = 'rm -rf '.$ADODB_CACHE_DIR.'/[0-9a-f][0-9a-f]/';
// old version 'rm -f `find '.$ADODB_CACHE_DIR.' -name adodb_*.cache`';
}
if ($this->debug) {
ADOConnection::outp( "CacheFlush: $cmd<br><pre>\n", system($cmd),"</pre>");
} else {
exec($cmd);
}
return;
}
global $ADODB_INCLUDED_CSV;
if (empty($ADODB_INCLUDED_CSV)) include_once(ADODB_DIR.'/adodb-csvlib.inc.php');
$f = $this->_gencachename($sql.serialize($inputarr),false);
adodb_write_file($f,''); // is adodb_write_file needed?
if (!@unlink($f)) {
if ($this->debug) ADOConnection::outp( "CacheFlush: failed for $f");
}
}
/**
* Private function to generate filename for caching.
* Filename is generated based on:
*
* - sql statement
* - database type (oci8, ibase, ifx, etc)
* - database name
* - userid
* - setFetchMode (adodb 4.23)
*
* When not in safe mode, we create 256 sub-directories in the cache directory ($ADODB_CACHE_DIR).
* Assuming that we can have 50,000 files per directory with good performance,
* then we can scale to 12.8 million unique cached recordsets. Wow!
*/
function _gencachename($sql,$createdir)
{
global $ADODB_CACHE_DIR;
static $notSafeMode;
if ($this->fetchMode === false) {
global $ADODB_FETCH_MODE;
$mode = $ADODB_FETCH_MODE;
} else {
$mode = $this->fetchMode;
}
$m = md5($sql.$this->databaseType.$this->database.$this->user.$mode);
if (!isset($notSafeMode)) $notSafeMode = !ini_get('safe_mode');
$dir = ($notSafeMode) ? $ADODB_CACHE_DIR.'/'.substr($m,0,2) : $ADODB_CACHE_DIR;
if ($createdir && $notSafeMode && !file_exists($dir)) {
$oldu = umask(0);
if (!mkdir($dir,0771))
if ($this->debug) ADOConnection::outp( "Unable to mkdir $dir for $sql");
umask($oldu);
}
return $dir.'/adodb_'.$m.'.cache';
}
/**
* Execute SQL, caching recordsets.
*
* @param [secs2cache] seconds to cache data, set to 0 to force query.
* This is an optional parameter.
* @param sql SQL statement to execute
* @param [inputarr] holds the input data to bind to
* @return RecordSet or false
*/
function &CacheExecute($secs2cache,$sql=false,$inputarr=false)
{
if (!is_numeric($secs2cache)) {
$inputarr = $sql;
$sql = $secs2cache;
$secs2cache = $this->cacheSecs;
}
global $ADODB_INCLUDED_CSV;
if (empty($ADODB_INCLUDED_CSV)) include_once(ADODB_DIR.'/adodb-csvlib.inc.php');
if (is_array($sql)) $sql = $sql[0];
$md5file = $this->_gencachename($sql.serialize($inputarr),true);
$err = '';
if ($secs2cache > 0){
$rs = &csv2rs($md5file,$err,$secs2cache,$this->arrayClass);
$this->numCacheHits += 1;
} else {
$err='Timeout 1';
$rs = false;
$this->numCacheMisses += 1;
}
if (!$rs) {
// no cached rs found
if ($this->debug) {
if (get_magic_quotes_runtime()) {
ADOConnection::outp("Please disable magic_quotes_runtime - it corrupts cache files :(");
}
if ($this->debug !== -1) ADOConnection::outp( " $md5file cache failure: $err (see sql below)");
}
$rs = &$this->Execute($sql,$inputarr);
if ($rs) {
$eof = $rs->EOF;
$rs = &$this->_rs2rs($rs); // read entire recordset into memory immediately
$txt = _rs2serialize($rs,false,$sql); // serialize
if (!adodb_write_file($md5file,$txt,$this->debug)) {
if ($fn = $this->raiseErrorFn) {
$fn($this->databaseType,'CacheExecute',-32000,"Cache write error",$md5file,$sql,$this);
}
if ($this->debug) ADOConnection::outp( " Cache write error");
}
if ($rs->EOF && !$eof) {
$rs->MoveFirst();
//$rs = &csv2rs($md5file,$err);
$rs->connection = &$this; // Pablo suggestion
}
} else
@unlink($md5file);
} else {
$this->_errorMsg = '';
$this->_errorCode = 0;
if ($this->fnCacheExecute) {
$fn = $this->fnCacheExecute;
$fn($this, $secs2cache, $sql, $inputarr);
}
// ok, set cached object found
$rs->connection = &$this; // Pablo suggestion
if ($this->debug){
global $HTTP_SERVER_VARS;
$inBrowser = isset($HTTP_SERVER_VARS['HTTP_USER_AGENT']);
$ttl = $rs->timeCreated + $secs2cache - time();
$s = is_array($sql) ? $sql[0] : $sql;
if ($inBrowser) $s = '<i>'.htmlspecialchars($s).'</i>';
ADOConnection::outp( " $md5file reloaded, ttl=$ttl [ $s ]");
}
}
return $rs;
}
/*
Similar to PEAR DB's autoExecute(), except that
$mode can be 'INSERT' or 'UPDATE' or DB_AUTOQUERY_INSERT or DB_AUTOQUERY_UPDATE
If $mode == 'UPDATE', then $where is compulsory as a safety measure.
$forceUpdate means that even if the data has not changed, perform update.
*/
function AutoExecute($table, $fields_values, $mode = 'INSERT', $where = FALSE, $forceUpdate=true, $magicq=false)
{
//$flds = array_keys($fields_values);
//$fldstr = implode(', ',$flds);
$sql = 'SELECT * FROM '.$table;
if ($where!==FALSE) $sql .= ' WHERE '.$where;
else if ($mode == 'UPDATE') {
ADOConnection::outp('AutoExecute: Illegal mode=UPDATE with empty WHERE clause');
return false;
}
$rs =& $this->SelectLimit($sql,1);
if (!$rs) return false; // table does not exist
switch((string) $mode) {
case 'UPDATE':
case '2':
$sql = $this->GetUpdateSQL($rs, $fields_values, $forceUpdate, $magicq);
break;
case 'INSERT':
case '1':
$sql = $this->GetInsertSQL($rs, $fields_values, $magicq);
break;
default:
ADOConnection::outp("AutoExecute: Unknown mode=$mode");
return false;
}
if ($sql) return $this->Execute($sql);
return false;
}
/**
* Generates an Update Query based on an existing recordset.
* $arrFields is an associative array of fields with the value
* that should be assigned.
*
* Note: This function should only be used on a recordset
* that is run against a single table and sql should only
* be a simple select stmt with no groupby/orderby/limit
*
* "Jonathan Younger" <jyounger@unilab.com>
*/
function GetUpdateSQL(&$rs, $arrFields,$forceUpdate=false,$magicq=false,$force=null)
{
global $ADODB_INCLUDED_LIB;
//********************************************************//
//This is here to maintain compatibility
//with older adodb versions. Sets force type to force nulls if $forcenulls is set.
if (!isset($force)) {
global $ADODB_FORCE_TYPE;
$force = $ADODB_FORCE_TYPE;
}
//********************************************************//
if (empty($ADODB_INCLUDED_LIB)) include_once(ADODB_DIR.'/adodb-lib.inc.php');
return _adodb_getupdatesql($this,$rs,$arrFields,$forceUpdate,$magicq,$force);
}
/**
* Generates an Insert Query based on an existing recordset.
* $arrFields is an associative array of fields with the value
* that should be assigned.
*
* Note: This function should only be used on a recordset
* that is run against a single table.
*/
function GetInsertSQL(&$rs, $arrFields,$magicq=false,$force=null)
{
global $ADODB_INCLUDED_LIB;
if (!isset($force)) {
global $ADODB_FORCE_TYPE;
$force = $ADODB_FORCE_TYPE;
}
if (empty($ADODB_INCLUDED_LIB)) include_once(ADODB_DIR.'/adodb-lib.inc.php');
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