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สร้าง poll แบบสำรวจ ด้วย ajax ใน jQuery อย่างง่าย

06 May 2010 By


ตัวอย่าง

สร้าง poll แบบสำรวจ ด้วย ajax ใน jQuery อย่างง่าย

Code ตัวอย่าง

 

<?php
// สร้างฟังก์ชันเขียนไฟล์
function write($path, $content, $mode="w+"){
    if (file_exists($path) && !is_writeable($path)){ return false; }
    if ($fp = fopen($path, $mode)){
        fwrite($fp, $content);
        fclose($fp);
    }
    else { return false; }
    return true;
}
// การใช้งาน โมดเขียนไฟล์เริ่มต้น  w+ 
//write("poll1.txt","ทดสอบ","w+");
if($_GET['voteID']!=""){
header("Content-type:text/html; charset=UTF-8");     
header("Cache-Control: no-store, no-cache, must-revalidate");    
header("Cache-Control: post-check=0, pre-check=0", false);  		
	$gPoll=file("poll1.txt");
	$newData="";
	$chartTitle="";
	$numRowChart=$_GET['startKey']-1;
	foreach($gPoll as $key=>$value){
		if($key==0){
			$chartTitle=trim($value);
		}
		if($_GET['voteID']+$_GET['startKey']==$key){
			$value=intval($value)+1;
			$newData.=$value."\r\n";
		}else{
			$newData.=$value;
		}
	}
	write("poll1.txt",$newData,"w+");
?>
{
	"ChoiceTitle":[
<?php  
$gPoll=file("poll1.txt");
foreach($gPoll as $key=>$value){
	if($key>0 && $key<$_GET['startKey']){
?>
    	{"choiceData":"<?=trim($value)?> (<?=trim($gPoll[$key+$_GET['startKey']])?>)","score":<?=trim($gPoll[$key+$_GET['startKey']])?>},
<?php
	}
}
?>
    ],
    "chartTitle":"<?=trim($chartTitle)?>",
    "numRowsChart":<?=$numRowChart?>
    
}
<?php
	exit;
}
?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>ajax poll jquery google</title>
<style type="text/css">
body{
	font-family:Tahoma, Geneva, sans-serif;
	font-size:12px;	
}
#pollDiv{
	display:block;
	width:200px;
	height:250px;
	background-color:#F4F4F4;	
}
</style>

</head>

<body>

<!--Div that will hold the pie chart--> 
    <div id="chart_div"></div> 


<div id="pollDiv">
<?php
$gPoll=file("poll1.txt");
foreach($gPoll as $key=>$value){
	if($key==0){
		echo "<strong>".$value."</strong><br>";
	}else{
		if(trim($value)!=""){
			echo '<input type="radio" name="choice" id="radio" value="'.$key.'" />';
			echo $value."<br>";
		}else{
			echo '<input type="button" name="VotePoll" id="VotePoll" value="Vote" />';
			break;	
		}
	}
}

?>

</div>
<script type="text/javascript" src="http://www.google.com/jsapi"></script> 
<script type="text/javascript"> 
google.load("visualization", "1", {packages:["columnchart"]}); 
</script>
<script type="text/javascript" src="js/jquery-1.4.1.min.js"></script>
<script type="text/javascript">
$(function(){
	var checkCondi=0;
	var chooseKey="";
	var startKey=$("input[name=choice]").size()+1;
	$("#VotePoll").click(function(){
		$("input[name=choice]").each(function(key){
			var condi=$("input[name=choice]").eq(key).attr("checked");
			if(condi==true){
				checkCondi=1;
				chooseKey=key+1;
			}
		});
		if(checkCondi==1){
			var loading_obj='<p id="i_loading" align="center"><img src="http://www.ninenik.com/ajax.gif" /></p>'; 
			 $("div#pollDiv").html(loading_obj); 
			var resultData=$.ajax({
				url:"ajax_poll_jquery_google.php",
				data:"voteID="+chooseKey+"&startKey="+startKey,
				async:false,
				success:function(resultData){
					var myObject = eval('(' + resultData + ')');
					$("div#pollDiv").html("");
					var data = new google.visualization.DataTable(); 
					data.addColumn('string', 'Choice Poll'); 
					data.addColumn('number', 'Score Point'); 
					data.addRows(myObject.numRowsChart);

					for(i=0;i<myObject.numRowsChart;i++){
						data.setCell(i, 0, myObject.ChoiceTitle[i].choiceData);
						data.setCell(i, 1, myObject.ChoiceTitle[i].score);
					}					
					var chart = new google.visualization.PieChart(document.getElementById('pollDiv')); 
					chart.draw(data, {
						width: 250, 
						height: 300, 
						is3D: true,
						legend:'bottom',
						legendFontSize:13, 
						titleFontSize:12,
						title:myObject.chartTitle
					}); 
				}
			}).responseText;
		}
	});
});
</script>

</body>
</html>

ไฟล์ text สำหรับสร้างแบบสำรวจ

poll1.txt


Tags:: jquery ajax poll





URL สำหรับอ้างอิง