分頁顯示Oracle數據庫記錄的類之二
2024-08-29 13:32:35
供稿：網友
//--------------------------------
// 工作函數
//--------------------------------
//讀取記錄
// 主要工作函數，根據所給的條件從表中讀取相應的記錄
// 返回值是一個二維數組，result[記錄號][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 (!$bool) {
echo "連接失敗！";
ocilogoff($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 $this->result;
}
//讀最新的記錄
//topnum指定要讀出的記錄數
function readtoplist($topnum){
$sql="select * from ".$this->table." ".$this->condition." order by ".$this->id." desc";
$stmt = ociparse($this->linkid,$sql);
$bool = ociexecute($stmt);
if (!$bool) {
echo "連接失敗！";
ocilogoff($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 $this->topresult;
}
//---------------------------
// 分頁相關
//---------------------------
//顯示當前頁及總頁數
//本函數在getpage()后調用。
function thepage() {
echo "第".$this->cpages."頁/共".$this->tpages."頁";
}
//顯示翻頁按鈕
//此函數要在getpage()函數之后調用
//顯示下頁、上頁，并加上要傳遞的參數
function page() {
$k=count($this->pagequery);
$strquery=""; //生成一個要傳遞參數字串
for($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.$strquery." class=newslink>上一頁＜/a>";
else if($this->thefirstpage!=null)
echo "＜a href=".$this->thefirstpage." class=newslink>上一頁＜/a>";
else echo "上一頁";
}
function nexpage($strquery){
$next=$this->offset+$this->maxline;
$k=$this->total-$this->startrec;
if($next＜$k)
echo "＜a href=$php_self?offset=".$next.$strquery." class=newslink>下一頁＜/a>";
else
echo "下一頁";
}
//------------------------------------
// 記錄分組
//----------------------------------
//顯示分組
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);
$strquery=""; //生成一個要傳遞參數字串
for($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
}
?>
