project/query.html at master · FMFluke/project · GitHub

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<!DOCTYPE html>
<html>
	<body>
		<h1>Query</h1>
		Search by:&nbsp;
		<select id="searchType" onchange="javascript: change(this.options[this.selectedIndex].value );" required>
		<option value="" disabled="disabled" selected="selected">Selected</option>
		<option value="1">AppID</option>
		<option value="2">StudentID</option>
		</select>
		<br>
		<form onsubmit="return false;">
			Search ID:&nbsp; <input type="text" id="formsKey" name="sKey" placeholder="Enter AppID or StudentID" size="35" required>
			<button type="button" onclick="search(document.getElementById('formsKey').value)">Search</button>
		</form><br>
		<div id="contentD">

		</div>
		<a href="\project\home.html">Back to Home</a>
		<script>
			var searchBy = 1;
			var eventType = "dummy";
			var eventID = "ID";
			var eType = "";
			var tableHead = "<table border=\"0.5px\">";
			var tableEnd = "</table>";
			var tableColumn = "";
			var columnSize = "";
			var tableContent = "";
			load();

			function change(into){
				searchBy = into;
			}

			function load(){
				var parts = window.location.search.substr(1).split("&");
				var $_GET = {};
				var arr,i;
				for (var i = 0; i < parts.length; i++) {
					var temp = parts[i].split("=");
					$_GET[decodeURIComponent(temp[0])] = decodeURIComponent(temp[1]);
				}
				eventType = $_GET['type'];
				eventID = $_GET.objectID;
				eType = $_GET.eType;
				if(eventType == "exam"){
					columnSize = "<col width=\"200\"><col width=\"100\"><col width=\"100\"><col width=\"100\">";
					tableColumn = "<tr id=\"columnHeader\"><th>Subject</th><th>SeatNo</th><th>Room</th><th>Time</th></tr>";
					tableContent = "<tr id=\"columnContent\"><td align=\"center\">-</td><td align=\"center\">-</td><td align=\"center\">-</td><td align=\"center\">-</td></tr>";
					document.getElementById("contentD").innerHTML = tableHead+columnSize+tableColumn+tableContent+tableEnd;
				}
				else if(eType == "sid"){
					columnSize = "<col width=\"200\">";
					tableColumn = "<tr id=\"columnHeader\"><th>StudentID</th></tr>";
					tableContent = "<tr id=\"columnContent\"><td align=\"center\">-</td></tr>";
					document.getElementById("contentD").innerHTML = tableHead+columnSize+tableColumn+tableContent+tableEnd;
					document.getElementById("searchType").innerHTML = "<option value=\"1\">AppID</option>";
				}
				else{
					var xmlhttp = new XMLHttpRequest();
					var url = "http://127.0.0.1:80/project/getEventHeader.php?eventID="+eventID+"&eType="+eType;
					xmlhttp.onreadystatechange=function() {
						if (xmlhttp.readyState == 4 && xmlhttp.status == 200) {
							displayResponse(xmlhttp.responseText);
						}
					}
					xmlhttp.open("GET", url, true);
					xmlhttp.send();
				}
			}

			function displayResponse(response){
				var i;
				var arr = JSON.parse(response);
				tableColumn = "<tr id=\"columnHeader\">";
				tableContent = "<tr id=\"columnContent\">";
				columnSize = "";
				for(i=0; i < arr.length; i++){
					columnSize += "<col width=\"200\">";
					tableColumn += "<th>"+arr[i].HeaderTitle+"</th>";
					tableContent += "<td align=\"center\">-</td>";
				}
				tableColumn += "</tr>";
				tableContent += "</tr>";
				document.getElementById("contentD").innerHTML = tableHead+columnSize+tableColumn+tableContent+tableEnd;
			}

			function search(sKey){
				var temp = document.getElementById("searchType");
				var get = temp.options[temp.selectedIndex].value;
				var xmlhttp = new XMLHttpRequest();
				var url = "http://127.0.0.1:80/project/getStudentRecord.php?sKey="+sKey+"&searchBy="+searchBy+"&eventType="+eventType+"&eventID="+eventID+"&eType="+eType;
				//alert(url);
				xmlhttp.onreadystatechange=function() {
					if (xmlhttp.readyState == 4 && xmlhttp.status == 200 && eType == "sid") {
						displaySid(xmlhttp.responseText);
					}
					else if (xmlhttp.readyState == 4 && xmlhttp.status == 200 && eventType == "event") {
						displayData(xmlhttp.responseText);
					}
					else if (xmlhttp.readyState == 4 && xmlhttp.status == 200 && eventType == "exam") {
						displayDataEx(xmlhttp.responseText);
					}
				}
				xmlhttp.open("GET", url, true);
				xmlhttp.send();
			}
			function displaySid(response){
				var i;
				var arr = JSON.parse(response);
				tableContent = "<tr id=\"columnContent\">";
				for(i=0; i < arr.length; i++){
					tableContent += "<td align=\"center\">"+arr[i].StudentID+"</td>";
				}
				tableContent += "</tr>";
				document.getElementById("contentD").innerHTML = tableHead+columnSize+tableColumn+tableContent+tableEnd;
			}

			function displayData(response){
				var i;
				var arr = JSON.parse(response);
				tableContent = "<tr id=\"columnContent\">";
				for(i=0; i < arr.length; i++){
					tableContent += "<td align=\"center\">"+arr[i].AttributeValue+"</td>";
				}
				tableContent += "</tr>";
				document.getElementById("contentD").innerHTML = tableHead+columnSize+tableColumn+tableContent+tableEnd;
			}

			function displayDataEx(response){
				var i;
				var arr = JSON.parse(response);
				tableContent = "<tr id=\"columnContent\">";
				for(i=0; i < arr.length; i++){
					tableContent += "<td align=\"center\">"+arr[i].SubjectName+"</td><td align=\"center\">"+arr[i].SeatNo
					+"</td><td align=\"center\">"+arr[i].Room+"</td><td align=\"center\">"+arr[i].Time+"</td>";
				}
				tableContent += "</tr>";
				document.getElementById("contentD").innerHTML = tableHead+columnSize+tableColumn+tableContent+tableEnd;
			}
		</script>
	</body>
</html>