if-itb · sinambelajunita · Oct 2, 2015 · Oct 3, 2015 · Oct 3, 2015 · Oct 10, 2015
diff --git a/backend/add_answer.php b/backend/add_answer.php
@@ -0,0 +1,16 @@
+<?php
+	include('db_connector.php');
+
+	$id = $_POST['id'];
+	$name = $_POST['name'];
+	$email = $_POST['email'];
+	$content = $_POST['content'];
+	if($id != null){
+		$sql = "INSERT INTO answer (id, name, email, content) VALUES ('$id', '$name', '$email', '$content')";
+		if (!mysqli_query($con,$sql)) {
+		  die('Error: ' . mysqli_error($con));
+		}
+	}
+	mysqli_close($con);
+	header('Location: ../question.php?id='.$id);
+?>
diff --git a/backend/add_question.php b/backend/add_question.php
@@ -0,0 +1,14 @@
+<?php
+	include('db_connector.php');
+
+	$name = $_POST['name'];
+	$email = $_POST['email'];
+	$topic = $_POST['topic'];
+	$content = $_POST['content'];
+	$sql = $sql="INSERT INTO question (name, email, topic, content) VALUES ('$name', '$email', '$topic', '$content')";
+	if (!mysqli_query($con,$sql)) {
+	  die('Error: ' . mysqli_error($con));
+	}
+	mysqli_close($con);
+	header('Location: ../index.php');
+?>
diff --git a/backend/ajax_answer.php b/backend/ajax_answer.php
@@ -0,0 +1,27 @@
+<html>
+<head>
+<?php
+	// escape variables for security
+	include('db_connector.php');
+
+	$id = $_GET['id'];
+	$sql="SELECT * FROM answer WHERE id = '$id' ORDER BY id_answer DESC LIMIT 1";
+	$result = mysqli_query($con,$sql);
+	mysqli_close($con);
+	$row = mysqli_fetch_array($result);
+?>
+</head>
+<body>
+	<div class="divider"></div>
+	<div class="answer">
+		<div class="content">
+			<a href="javascript:upvoteAnswer(<?php echo $row['id_answer'];?>)">Up</a>
+			<div class="votes" id="votes<?php echo $row['id_answer'];?>"><?php echo $row['votes'];?></div>
+			<a href="javascript:downvoteAnswer(<?php echo $row['id_answer'];?>)">Down</a>
+			<div class=""><?php echo $row['content'];?></div>
+		</div>
+		<div class="details">answered by <?php echo $row['name'];?> at <?php echo $row['timestamp'];?></div>
+	</div>
+</body>
+</html>
+
diff --git a/backend/ajax_count_answers.php b/backend/ajax_count_answers.php
@@ -0,0 +1,12 @@
+<?php 
+	include('db_connector.php');
+
+	$id = $_GET['id'];
+	$sql = "SELECT COUNT(*) AS count FROM answer WHERE id = '$id'";
+	$answer = mysqli_query($con,$sql);
+	$count = mysqli_fetch_array($answer);
+	mysqli_close($con);
+?>
+<body>
+	<?php echo $count['count']." Answer";?>
+</body>
diff --git a/backend/ajax_vote_answer.php b/backend/ajax_vote_answer.php
@@ -0,0 +1,27 @@
+<head>
+<?php
+	include('db_connector.php');
+	// escape variables for security
+	$id_answer = $_POST['id'];
+	$vote = $_POST['vote'];
+	$result = mysqli_query($con, "SELECT votes FROM answer WHERE id_answer = '$id_answer'");
+	$row = mysqli_fetch_array($result);
+	if($vote == 1){
+		$vote += $row['votes'];
+		if(!mysqli_query($con,"UPDATE answer SET votes = '$vote' WHERE id_answer = '$id_answer'")){
+			die('Error: ' . mysqli_error($con));
+		}
+	} else if($vote == -1 && $row['votes'] > 0){
+		$vote += $row['votes'];
+		if(!mysqli_query($con,"UPDATE answer SET votes = '$vote' WHERE id_answer = '$id_answer'")){
+			die('Error: ' . mysqli_error($con));
+		}
+	}
+	else $vote = $row['votes'];
+	mysqli_close($con);
+?>
+</head>
+<body>
+	<?php echo $vote;?>
+</body>
+</html>
diff --git a/backend/ajax_vote_question.php b/backend/ajax_vote_question.php
@@ -0,0 +1,26 @@
+<head>
+<?php
+	include('db_connector.php');
+	// escape variables for security
+	$id = $_POST['id'];
+	$vote = $_POST['vote'];
+	$result = mysqli_query($con, "SELECT votes FROM question WHERE id = '$id'");
+	$row = mysqli_fetch_array($result);
+	if($vote == 1){
+		$vote += $row['votes'];
+		if(!mysqli_query($con,"UPDATE question SET votes = '$vote' WHERE id = '$id'")){
+			die('Error: ' . mysqli_error($con));
+		}
+	} else if($vote == -1 && $row['votes'] > 0){
+		$vote += $row['votes'];
+		if(!mysqli_query($con,"UPDATE question SET votes = '$vote' WHERE id = '$id'")){
+			die('Error: ' . mysqli_error($con));
+		}
+	}
+	else $vote = $row['votes'];
+	mysqli_close($con);
+?>
+</head>
+<body>
+	<?php echo $vote;?>
+</body>
diff --git a/backend/all_questions.php b/backend/all_questions.php
@@ -0,0 +1,5 @@
+<?php 
+	include('db_connector.php');
+	$result = mysqli_query($con,"SELECT DISTINCT question.id, question.name, question.topic, question.content, question.timestamp, question.votes, (SELECT COUNT(answer.id) as count FROM answer WHERE answer.id = question.id) as count FROM question ORDER BY id DESC");
+	mysqli_close($con);
+?>
diff --git a/backend/answer.php b/backend/answer.php
@@ -0,0 +1,7 @@
+<?php 
+	include('db_connector.php');
+	$id = $_GET['id'];
+	$sql = "SELECT * FROM answer WHERE id ='$id'";
+	$result_answer = mysqli_query($con,$sql);
+	mysqli_close($con);
+?>
diff --git a/backend/db_connector.php b/backend/db_connector.php
@@ -0,0 +1,7 @@
+<?php
+	$con=mysqli_connect("localhost","root","","db_stackexchange");
+	// Check connection
+	if (mysqli_connect_errno()) {
+  		echo "Failed to connect to MySQL: " . mysqli_connect_error();
+	}
+?>
diff --git a/backend/delete.php b/backend/delete.php
@@ -0,0 +1,11 @@
+<?php
+	include('db_connector.php');
+
+	$id = $_GET['id'];
+	$sql = "DELETE FROM question WHERE id ='$id'";
+	if (!mysqli_query($con,$sql)) {
+		  die('Error: ' . mysqli_error($con));
+	}
+	mysqli_close($con);
+	header('Location: ../index.php');
+?>
diff --git a/backend/question.php b/backend/question.php
@@ -0,0 +1,8 @@
+<?php 
+	include('db_connector.php');
+	$id = $_GET['id'];
+	$sql = "SELECT question.id, question.name, question.topic, question.content, question.timestamp, question.votes, COUNT(answer.id) AS count FROM (question LEFT JOIN answer ON question.id = answer.id) WHERE question.id ='$id'";
+	$result = mysqli_query($con,$sql);
+	$question = mysqli_fetch_array($result);
+	mysqli_close($con);
+?>
diff --git a/backend/update.php b/backend/update.php
@@ -0,0 +1,12 @@
+<?php 
+	include('db_connector.php');
+	$id = $_POST['id'];
+	$topic = $_POST['topic'];
+	$content = $_POST['content'];
+	$sql = "UPDATE question SET topic = '$topic', content = '$content' WHERE id = '$id'";
+	if(!mysqli_query($con,$sql)){
+		die('Error: ' . mysqli_error($con));
+	}
+	mysqli_close($con);
+	header('Location: ../question.php?id='.$id);
+?>
diff --git a/css/style.css b/css/style.css
@@ -0,0 +1,152 @@
+html{
+	font-size: 20px;
+}
+a{
+	text-decoration: none;
+	color: black;
+}
+form{
+	text-align: center;
+}
+body{
+	margin-left: 100px;
+	margin-right: 100px;
+}
+h1{
+	margin-top: 30px;
+	text-align: center;
+	font-size: 40px;
+}
+.search{
+	text-align: center;
+}
+.yellow{
+	display: inline-block;
+	color: #E68416;
+}
+.name{
+	display: inline-block;
+	color: #12107E;
+}
+.delete{
+	display: inline-block;
+	color: #FF1515;
+}
+.search_form{
+	padding: 4px;
+	margin: auto;
+	width: 50%;
+	border-style: solid;
+	border-width: 2px;
+	border-color: #000000;
+	border-radius: 5px;
+}
+.button{
+	padding: 4px;
+	border-style: solid;
+	border-width: 2px;
+	border-color: #000000;
+	border-radius: 5px;
+}
+.list{
+	margin-left: 50px;
+}
+ul{
+	list-style-type: none;
+	margin-left: 0px;
+}
+.title{
+	font-size: 25px;
+}
+hr {
+  	display: inline-block;
+   	position: relative;
+   	padding: 0;
+  	margin: 8px auto;
+   	height: 0;
+   	width: 100%;
+   	max-height: 0;
+   	font-size: 1px;
+   	line-height: 0;
+   	clear: both;
+   	border: none;
+   	border-top: 1px solid #aaaaaa;
+   	border-bottom: 1px solid #ffffff;
+}
+.votes{
+	display: inline-block;
+    width: 50px;
+    padding: 0px;
+    border: none;
+    margin: 25px;
+    text-align: center;
+}
+.count{
+	display: inline-block;
+    width: 50px;
+    padding: 0px;
+    border: none;
+    margin: 25px;
+    text-align: center;
+}
+.content{
+	display: inline-block;
+    width: 300px;
+    padding: 0px;
+    border: none;
+    text-align: center;
+}
+.credential{
+	position: absolute;
+	right: 100px;
+	font-size: 20px;
+}
+.votes-count{
+	display: inline-block;
+}
+.vote-up{
+	height: 30px;
+	text-indent: -9999em;
+	font-size: 1px;
+	display: block;
+	margin: 0px 2px;
+	width: 40px;
+	background-image: url("http://cdn.sstatic.net/stackoverflow/img/sprites.svg?v=a7723f5f7e59"), none;
+	background-size: initial;
+	background-repeat: no-repeat;
+	background-position: 0px -170px;
+	overflow: hidden;
+}
+.vote{
+	height: 30px;
+	display: block;
+	margin: 0px 2px;
+	width: 40px;
+	text-align: center;
+}
+.vote-down{
+	height: 30px;
+	text-indent: -9999em;
+	font-size: 1px;
+	display: block;
+	margin: 0px 2px;
+	width: 40px;
+	background-image: url("http://cdn.sstatic.net/stackoverflow/img/sprites.svg?v=a7723f5f7e59"), none;
+	background-size: initial;
+	background-repeat: no-repeat;
+	background-position: 0px -220px;
+	overflow: hidden;
+}
+.inputform{
+	text-align: center;
+	padding: 4px;
+	margin: auto;
+	width: 50%;
+	border-style: solid;
+	border-width: 2px;
+	border-color: #000000;
+	border-radius: 5px;
+}
+.new-answer{
+	margin: auto;
+}
diff --git a/edit.php b/edit.php
@@ -0,0 +1,21 @@
+<!DOCTYPE html>
+<head>
+	<title>Simple StackExchange</title>
+	<link rel="stylesheet" href="css/style.css" />
+	<script src="js/validation.js"></script>
+	<?php include('backend/question.php');?>
+</head>
+<body>
+	<a href="index.php"><h1>Simple StackExchange</h1></a><br>
+
+	<div class="list">
+	<div class="title">Edit your question</div>
+	<hr></hr>
+	<form name="edit" method="post" action="backend/update.php">
+		<input type="hidden" name="id" value=<?php echo $question['id']?>><br>
+		<input class="inputform" type="text" name="topic" placeholder="Question Topic" value="<?php echo $question['topic']?>"><br>
+		<textarea class="inputform" name="content" placeholder="Content" value="<?php echo $question['content']?>"></textarea><br>
+		<input type="submit" class="button" value="Update" onclick="return validateFormEdit()">
+	</form>
+	</div>
+</body>