comment.sql
CREATE TABLE `comment` (
`user_id` int(8) NOT NULL,
`photo_id` int(8) NOT NULL,
`comment` text NOT NULL,
`date` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP,
PRIMARY KEY (`user_id``photo_id`)
);
ajax_comment.php
<?php
// code will run if request through ajax
if (isset( $_SERVER['HTTP_X_REQUESTED_WITH'] )):
include('../config.php');
// connecting to db
dbConnect();
if (!empty($_SESSION['user_id']) AND !empty($_POST['photo_id']) AND !empty($_POST['comment'])) {
// preventing sql injection
$user_id = $_SESSION['user'];
$photo_id = $_POST['photo_id'];
$comment = $_POST['comment'];
// insert new comment into comment table
$query = "INSERT INTO comment (user_id, photo_id, comment) VALUES('$user_id', '$photo_id', '$comment')");
}
?>
<!-- sending response with new comment and html markup-->
<div class="comment-item">
<div class="comment-avatar">
<a href="<?php echo $baseurl . "/" . $photo_username ?>"><img src="./core/getimg.php?profiloimg=<?php echo $photo_userid ?>" class="home-foto-profilofoto" /></a> </div>
<div class="comment-post">
<h3><?php echo $photo_username . "/" . $user_id ?> <span>ha commentato:</span></h3>
<p><?php echo $comment?></p>
</div>
</div>
<?php
// close connection
dbConnect(0);
endif?>
jQuery.js
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.10.2/jquery.min.js"></script>
<script>
$(document).ready(function(){
var form = $('form');
var submit = $('#submit');
form.on('submit', function(e) {
// prevent default action
e.preventDefault();
// send ajax request
$.ajax({
url: 'ajax_comment.php',
type: 'POST',
cache: false,
data: form.serialize(), //form serizlize data
beforeSend: function(){
// change submit button value text and disabled it
submit.val('Submitting...').attr('disabled', 'disabled');
},
success: function(data){
// Append with fadeIn see http://stackoverflow.com/a/978731
var item = $(data).hide().fadeIn(800);
$('.comment-block').append(item);
// reset form and button
form.trigger('reset');
submit.val('Submit Comment').removeAttr('disabled');
},
error: function(e){
alert(e);
}
});
});
});
</script>
home.php (Where there are my users posts)
<!-- Commenti -->
<form id="form" method="post">
<!-- need to supply post id with hidden fild -->
<input type="hidden" name="comment" value="1">
<label>
<a href="<?php echo $baseurl . "/" . $photo_username ?>"><img width="25"
height="25"src="./core/getimg.php?profiloimg=<?php echo $photo_userid ?>" class="home-foto-profilofoto" /></a>
</label>
<label>
<a href="<?php echo $baseurl . "/" . $photo_username; ?>"><?php echo $photo_username; ?></a>
</label>
<label>
<span>Commenta</span>
<textarea name="comment" id="comment" cols="0" rows="0" placeholder="Scrivi un commento.." required></textarea>
</label>
<input type="submit" id="submit1" value="Submit Comment">
</form>
<?php
include ("ajax_comment.php");
include ("jquery.js");
?>
<!-- Fine commenti -->
