objDB=$GLOBALS['oDB']; // use oDB global as database connection, if it exists
}
$this->orderByRef=false;
$this->sendDebugMsgs=false;
$this->readAllRows=true; // has no effect on SQL Server 2005, Oracle, and MySQL because they use Query2xmlRaw_Limit()
$this->convertCharSet=false;
$this->AllRowsMax=1999;
}
// All Oracle and SQL Server 2005 queries *must* have an ORDER BY clause
// "as" clauses are now ok
// If numrows < 0, then retrieve all rows
function Query2xml($sqlselect, $offset, $numrows, $gettotal, $filters=array()) {
if ($numrows >= 0) {
$Dialect=$this->objDB->Dialect;
} else {
$numrows=$this->AllRowsMax;
$Dialect=""; // don't use limit query
}
if ($this->sendDebugMsgs) {
echo "\nQuery2xml: SQL Dialect=".htmlspecialchars($Dialect)."";
echo "\nQuery2xml: numrows=".$numrows."";
echo "\nQuery2xml: resource type=".get_resource_type($this->objDB->dbMain)."";
}
switch ($this->objDB->Dialect) {
case "MySQL": $this->orderByRef=true; break;
}
$this->arParams=array('H'=>array(), 'W'=>array());
$this->oParse= new sqlParse();
$this->oParse->ParseSelect($sqlselect);
$this->ApplyQStringParms($filters);
$this->allParams=array_merge($this->arParams['W'],$this->arParams['H']);
echo "\n";
switch ($Dialect) {
case "TSQL":
$this->objDB->SingleRecordQuery("select @@VERSION", $version);
if (strtoupper(substr($sqlselect,0,7))!="SELECT ") {
$this->allParams=array();
$totcnt=$this->Query2xmlRaw($sqlselect, $offset, $numrows);
}
else if (preg_match("/SQL Server 200(5|8)/i",$version[0])) {
$this->sqltext=$this->UnparseWithRowNumber($offset, $numrows + 1, true);
$totcnt=$this->Query2xmlRaw_Limit($this->sqltext, $offset, $numrows, 1);
}
else {
$this->sqltext=$this->oParse->UnparseSelect();
$totcnt=$this->Query2xmlRaw($this->sqltext, $offset, $numrows);
}
break;
case "Oracle":
$this->sqltext=$this->UnparseWithRowNumber($offset, $numrows + 1, false);
$totcnt=$this->Query2xmlRaw_Limit($this->sqltext, $offset, $numrows, 1);
break;
case "MySQL":
$this->sqltext=$this->oParse->UnparseSelect()." LIMIT ".$offset.",".($numrows + 1);
$totcnt=$this->Query2xmlRaw_Limit($this->sqltext, $offset, $numrows, 0);
break;
case "PostgreSQL":
$this->sqltext=$this->oParse->UnparseSelect()." LIMIT ".($numrows + 1) . " OFFSET ".$offset;
$totcnt=$this->Query2xmlRaw_Limit($this->sqltext, $offset, $numrows, 0);
break;
default:
$this->sqltext=$this->oParse->UnparseSelect();
$totcnt=$this->Query2xmlRaw($this->sqltext, $offset, $numrows);
break;
}
echo "\n";
if ($this->sendDebugMsgs) {
echo "\norigQuery=".htmlspecialchars($sqlselect)."";
echo "\nexecQuery=".htmlspecialchars($this->objDB->db->lastQuery)."";
}
if (!$this->eof && $gettotal) {
$totcnt=$this->getTotalRowCount();
if ($this->sendDebugMsgs) {
echo "\ncntQuery=".htmlspecialchars($this->objDB->db->lastQuery)."";
}
}
if ($this->eof) {
echo "\n".$totcnt."";
}
$this->oParse=NULL;
return $totcnt;
}
function Query2xmlDistinct($sqlselect, $colnum, $numrows, $filters=array()) {
if ($numrows < 0) $numrows=$this->AllRowsMax;
$this->arParams=array('H'=>array(), 'W'=>array());
$this->oParse= new sqlParse();
$this->oParse->ParseSelect($sqlselect);
$this->ApplyQStringParms($filters);
$this->allParams=array_merge($this->arParams['W'],$this->arParams['H']);
echo "\n";
$this->sqltext=$this->oParse->UnparseDistinctColumn($colnum);
$totcnt=$this->Query2xmlRaw($this->sqltext, 0, $numrows);
echo "\n";
if ($this->sendDebugMsgs) {
echo "\norigQuery=".htmlspecialchars($sqlselect)."";
echo "\nexecQuery=".htmlspecialchars($this->objDB->db->lastQuery)."";
}
$this->oParse=NULL;
}
// Tested ok with SQL Server 2005, MySQL, and Oracle
function getTotalRowCount() {
$countSql="SELECT ".$this->oParse->UnparseColumnList()." FROM ".$this->oParse->FromClause;
if (!empty($this->oParse->WhereClause)) {
$countSql.=" WHERE ".$this->oParse->WhereClause;
}
if (is_array($this->oParse->arGroupBy)) {
if (count($this->oParse->arGroupBy) > 0) {
$countSql.=" GROUP BY ".implode(",",$this->oParse->arGroupBy);
}
}
if (!empty($this->oParse->HavingClause)) {
$countSql.=" HAVING ".$this->oParse->HavingClause;
}
$countSql="SELECT COUNT(*) FROM (".$countSql.")";
if ($this->objDB->Dialect != "Oracle") {
$countSql.=" AS rico_Main";
}
if (count($this->allParams)>0) {
$rsMain=$this->objDB->RunParamQuery($countSql,$this->allParams);
} else {
$rsMain=$this->objDB->RunQuery($countSql);
}
if (!$rsMain) {
echo "\ngetTotalRowCount: rsMain is null";
return;
}
if (!$this->objDB->db->FetchArray($rsMain,$a)) return;
$this->objDB->rsClose($rsMain);
$this->eof=true;
return $a[0];
}
function UnparseWithRowNumber($offset, $numrows, $includeAS) {
if (is_array($this->oParse->arOrderBy)) {
if (count($this->oParse->arOrderBy) > 0) {
$strOrderBy=implode(",",$this->oParse->arOrderBy);
}
}
if (empty($strOrderBy) && !preg_match("/\bjoin\b/",$this->oParse->FromClause)) {
// order by clause should be included in main sql select statement
// However, if it isn't, then use primary key as sort - assuming FromClause is a simple table name
$strOrderBy=$this->objDB->PrimaryKey($this->oParse->FromClause);
}
$unparseText="SELECT ROW_NUMBER() OVER (ORDER BY ".$strOrderBy.") AS rico_rownum,";
$unparseText.=$this->oParse->UnparseColumnList()." FROM ".$this->oParse->FromClause;
if (!empty($this->oParse->WhereClause)) {
$unparseText.=" WHERE ".$this->oParse->WhereClause;
}
if (is_array($this->oParse->arGroupBy)) {
if (count($this->oParse->arGroupBy) > 0) {
$unparseText.=" GROUP BY ".implode(",",$this->oParse->arGroupBy);
}
}
if (!empty($this->oParse->HavingClause)) {
$unparseText.=" HAVING ".$this->oParse->HavingClause;
}
$unparseText="SELECT * FROM (".$unparseText.")";
if ($includeAS) {
$unparseText.=" AS rico_Main";
}
$unparseText.=" WHERE rico_rownum > ".$offset." AND rico_rownum <= ".($offset + $numrows);
return $unparseText;
}
function Query2xmlRaw($rawsqltext, $offset, $numrows) {
if (count($this->allParams)>0) {
$rsMain=$this->objDB->RunParamQuery($rawsqltext,$this->allParams);
} else {
$rsMain=$this->objDB->RunQuery($rawsqltext);
}
if (!$rsMain) {
echo "\nQuery2xmlRaw: rsMain is null - ".htmlspecialchars($this->objDB->ErrorMsg())."";
return;
}
$colcnt = $this->objDB->db->NumFields($rsMain);
$totcnt = $this->objDB->db->NumRows($rsMain);
//echo "Query2xmlRaw: NumRows=$totcnt";
if ($offset < $totcnt || $totcnt==-1)
{
$rowcnt=0;
$this->objDB->db->Seek($rsMain,$offset);
while(($this->objDB->db->FetchRow($rsMain,$row)) && $rowcnt < $numrows)
{
$rowcnt++;
print "\n";
for ($i=0; $i < $colcnt; $i++)
print $this->XmlStringCell($row[$i]);
print "
";
}
if ($totcnt < 0) {
$totcnt=$offset+$rowcnt;
while($this->objDB->db->FetchRow($rsMain,$row))
$totcnt++;
}
}
else
{
$totcnt=$offset;
}
$this->objDB->rsClose($rsMain);
$this->eof=true;
return $totcnt;
}
function Query2xmlRaw_Limit($rawsqltext, $offset, $numrows, $firstcol) {
if (count($this->allParams)>0) {
$rsMain=$this->objDB->RunParamQuery($rawsqltext,$this->allParams);
} else {
$rsMain=$this->objDB->RunQuery($rawsqltext);
}
if ($this->objDB->db->HasError()) echo "" . $this->objDB->db->ErrorMsg() . "";
$totcnt=$offset;
$this->eof=true;
if (!$rsMain) {
echo "Query2xmlRaw_Limit: rsMain is null";
return;
}
$colcnt = $this->objDB->db->NumFields($rsMain);
$rowcnt=0;
while(($this->objDB->db->FetchRow($rsMain,$row)) && $rowcnt < $numrows)
{
$rowcnt++;
print "\n";
for ($i=$firstcol; $i < $colcnt; $i++)
print $this->XmlStringCell($row[$i]);
print "
";
}
$totcnt+=$rowcnt;
$this->eof=($rowcnt < $numrows);
$this->objDB->rsClose($rsMain);
return $totcnt;
}
function SetDbConn(&$dbcls) {
$this->objDB=&$dbcls;
}
function PushParam($newvalue) {
$parm=$this->convertCharSet ? utf8_decode($newvalue) : $newvalue;
if (get_magic_quotes_gpc()) $parm=stripslashes($parm);
array_push($this->arParams[$this->condType], $parm);
if ($this->sendDebugMsgs) {
echo "\n".$this->condType." param=".htmlspecialchars($parm)."";
}
}
function setCondType($selectItem) {
$this->condType=(preg_match("/\bmin\(|\bmax\(|\bsum\(|\bcount\(/i",$selectItem) && !preg_match("/\bselect\b/i",$selectItem)) ? 'H' : 'W';
}
function addCondition($newfilter) {
switch ($this->condType) {
case 'H': $this->oParse->AddHavingCondition($newfilter); break;
case 'W': $this->oParse->AddWhereCondition($newfilter); break;
}
}
function ApplyQStringParms($filters) {
foreach($_GET as $qs => $value) {
$prefix=substr($qs,0,1);
switch ($prefix) {
// user-invoked condition
case "w":
case "h":
$i=substr($qs,1);
if (!is_numeric($i)) break;
$i=intval($i);
if ($i<0 || $i>=count($filters)) break;
$newfilter=$filters[$i];
$this->condType=strtoupper($prefix);
$j=strpos($newfilter," in (?)");
if ($j !== false) {
$a=explode(",", $value);
for ($i=0; $i < count($a); $i++) {
$this->PushParam($a[$i]);
$a[$i]="?";
}
$newfilter=substr($newfilter,0,$j+4) . implode(",",$a) . substr($newfilter,$j+5);
} elseif (strpos($newfilter,"?") !== false) {
$this->PushParam($value);
}
$this->addCondition($newfilter);
break;
// sort
case "s":
$i=substr($qs,1);
if (!is_numeric($i)) break;
$i=intval($i);
if ($i<0 || $i>=count($this->oParse->arSelList)) break;
$value=strtoupper(substr($value,0,4));
if (!in_array($value,array('ASC','DESC'))) $value="ASC";
if ($this->orderByRef)
$this->oParse->AddSort(($i + 1)." ".$value);
else
$this->oParse->AddSort($this->oParse->arSelList[$i]." ".$value);
break;
// user-supplied filter
case "f":
//print_r($value);
foreach($value as $i => $filter) {
if ($i<0 || $i>=count($this->oParse->arSelList)) break;
$newfilter=$this->oParse->arSelList[$i];
$this->setCondType($newfilter);
switch ($filter['op']) {
case "EQ":
if ($filter[0]=="") {
if ($this->objDB->Dialect=="Access") {
$newfilter="iif(IsNull(" . $newfilter . "),''," . $newfilter . ")";
} else {
$newfilter="coalesce(" . $newfilter . ",'')";
}
}
$newfilter.="=?";
$this->PushParam($filter[0]);
break;
case "LE":
$newfilter.="<=?";
$this->PushParam($filter[0]);
break;
case "GE":
$newfilter.=">=?";
$this->PushParam($filter[0]);
break;
case "NULL": $newfilter.=" is null"; break;
case "NOTNULL": $newfilter.=" is not null"; break;
case "LIKE":
$newfilter.=" LIKE ?";
$this->PushParam(str_replace("*",$this->objDB->Wildcard,$filter[0]));
break;
case "NE":
$flen=$filter['len'];
if (!is_numeric($flen)) break;
$flen=intval($flen);
$newfilter.=" NOT IN (";
for ($j=0; $j<$flen; $j++) {
if ($j > 0) $newfilter.=",";
$newfilter.='?';
$this->PushParam($filter[$j]);
}
$newfilter.=")";
break;
}
$this->addCondition($newfilter);
}
break;
}
}
}
function XmlStringCell($value) {
if (!isset($value)) {
$result="";
}
else {
if ($this->convertCharSet) $value=utf8_encode($value);
$result=htmlspecialchars($value, ENT_COMPAT, 'UTF-8');
}
return "".$result." | ";
}
// for the root node, parentID should "" (empty string)
// containerORleaf: L/zero (leaf), C/non-zero (container)
// selectable: 0->not selectable, 1->selectable
function WriteTreeRow($parentID, $ID, $description, $containerORleaf, $selectable) {
echo "\n";
echo $this->XmlStringCell($parentID);
echo $this->XmlStringCell($ID);
echo $this->XmlStringCell($description);
echo $this->XmlStringCell($containerORleaf);
echo $this->XmlStringCell($selectable);
echo "
";
}
}
?>