//--------------------------------

// 工作函数

//--------------------------------

//读取记录

//主要工作函数，根据所给的条件从表中读取相应的记录

//返回值是一个二维数组，Result[记录号][字段名]

function ReadList() {

$SQL="SELECT * FROM ".$this->Table." ".$this->Condition." ORDER BY ".$this->Id." DESC";

$stmt = OCIParse($this->LinkId,$SQL);

$bool = OCIExecute($stmt);

if (!$bool) {

echo "连接失败！";

OCILogoff($this->LinkId);

exit;

}

else {

$ncols = OCINumCols($stmt);

for ( $i = 1; $i ＜= $ncols; $i++ )

$column_name[$i] = OCIColumnName($stmt,$i);

$k=0;

for($j=0;$j＜$this->StartRec+$this->Offset;$j++) OCIFetch($stmt);

for($j=0;$j＜$this->MaxLine;$j++){

if(OCIFetch($stmt)){

$k++;

for($i=1;$i＜=$ncols;$i++)

$temp[$column_name[$i]]=OCIResult($stmt,$i);

$this->Result[]=$temp;

}

else break;

}

$this->Number=$k;

}

OCIFreeStatement($stmt);

return $this->Result;

}

//读最新的记录

//topnum指定要读出的记录数

function ReadTopList($topnum){

$SQL="SELECT * FROM ".$this->Table." ".$this->Condition." ORDER BY ".$this->Id." DESC";

$stmt = OCIParse($this->LinkId,$SQL);

$bool = OCIExecute($stmt);

if (!$bool) {

echo "连接失败！";

OCILogoff($this->LinkId);

exit;

}

else {

$ncols = OCINumCols($stmt);

for ( $i = 1; $i ＜= $ncols; $i++ )

$column_name[$i] = OCIColumnName($stmt,$i);

$k=0;

for($j=0;$j＜$topnum;$j++){

if(OCIFetch($stmt)){

$k++;

for($i=1;$i＜=$ncols;$i++)

$temp[$column_name[$i]]=OCIResult($stmt,$i);

$this->TopResult[]=$temp;

}

else break;

}

$this->TopNumber=$k;

}

OCIFreeStatement($stmt);

return $this->TopResult;

}

//---------------------------

// 分页相关

//---------------------------

//显示当前页及总页数

//本函数在GetPage()后调用。

function ThePage() {

echo "第".$this->CPages."页/共".$this->TPages."页";

}

//显示翻页按钮

//此函数要在GetPage()函数之后调用

//显示下页、上页，并加上要传递的参数

function Page() {

$k=count($this->PageQuery);

$strQuery=""; //生成一个要传递参数字串

for($i=0;$i＜$k;$i++){

$strQuery.="&".$this->PageQuery[$i][key]."=".$this->PageQuery[$i][value];

}

return $strQuery;

}

function PrePage($strQuery){

$prev=$this->Offset-$this->MaxLine;

if($prev>=0)

echo "＜A href=$PHP_SELF?offset=".$prev.$strQuery." class=newslink>上一页＜/A>";

else if($this->TheFirstPage!=NULL)

echo "＜A href=".$this->TheFirstPage." class=newslink>上一页＜/A>";

else echo "上一页";

}

function NexPage($strQuery){

$next=$this->Offset+$this->MaxLine;

$k=$this->Total-$this->StartRec;

if($next＜$k)

echo "＜A href=$PHP_SELF?offset=".$next.$strQuery." class=newslink>下一页＜/A>";

else

echo "下一页";

}

//------------------------------------

// 记录分组

//----------------------------------

//显示分组

function NumPage() {

$first=($this->CGroup-1)*($this->PGroup)+1;

$last=($first+$this->PGroup > $this->TPages)? ($this->TPages+1):($first+$this->PGroup);

$pr=($this->CGroup-2>=0)?( ($this->CGroup-2)*($this->PGroup)+1 ):(-1);

$prev=($pr!=-1)?( ($pr-1)*$this->MaxLine):(0);

$ne=($this->CGroup*$this->PGroup+1＜=$this->TPages)?($this->CGroup*$this->PGroup+1):(-1);

$next=($ne!=-1)?( ($ne-1)*$this->MaxLine):(0);

$k=count($this->PageQuery);

$strQuery=""; //生成一个要传递参数字串

for($i=0;$i＜$k;$i++){

$strQuery.="&".$this->PageQuery[$i][key]."=".$this->PageQuery[$i][value];

}

if($first!=1)

echo "＜A href=$PHP_SELF?offset=".$prev.$strQuery." > ＜＜ ＜/a>";

for($i=$first;$i＜$last;$i++) {

if($this->CPages!=$i){

$current=($i-1)*$this->MaxLine;

echo "＜A href=$PHP_SELF?offset=".$current.$strQuery." >".$i."＜/a> ";

}

else echo "＜font color=#e00729>".$i."＜/font> ";

}

if($ne!=-1)

echo "＜A href=$PHP_SELF?offset=".$next.$strQuery." > >> ＜/a>";

}

//******end class

}

?>