wlvali
Reputation: 21
Saving HTML5 drag and drop elements to db
I am trying to save HTML5 drap and drop divs to a database, there current state. this shows what I am trying to save
As you can see from the image, on the left hand side of the page is data that will be dragged into the grid which is what I am trying to save.
Currently I am able to drag the items from the left to the centre of the page in specific locations however I don't know how to then save this data in the state it is in, I am using HTMl5 and have wrote a php page that connects to the database,
I have done research online and found that I may need jQuery which I don't have an understanding of.
In the image you can see I have dragged the data to a specific location on the page.
Below is the html5 source code. Could somebody please help?
<!DOCTYPE html>
<html lang="en">
<head>
<title>Create a new plan</title>
<link href="bootstrap/css/bootstrap.min.css" rel="stylesheet">
<?php // redirecting any web user who hasn't logged in so that the page cannot be accessed from the url
session_start();
if(!isset($_SESSION['sess_user '])) {
header("location:login.php");
}
?>
<!-- this welcomes the session user and gives them the option to log out -->
<h3>Welcome, <?=$_SESSION['sess_user '];?>! <a href="logout.php">Logout</a></h3>
<script>
function allowDrop(ev) {
ev.preventDefault();
}
function drag(ev) {
ev.dataTransfer.setData("text", ev.target.id);
document.getElementById('StudentImageID ').innerHTML = ev.target.id;
document.getElementById('StudentName ').innerHTML = ev.target.name;
}
function drop(ev) {
ev.preventDefault();
var data = ev.dataTransfer.getData("text");
ev.target.appendChild(document.getElementById(data));
}
</script>
</head>
<body>
<nav class="navbar navbar-default">
<div class="container-fluid">
<!-- Brand and toggle get grouped for better mobile display -->
<div class="navbar-header">
<a class="navbar-brand" href="#">DNP Seating Solutions</a>
<ul class="nav navbar-nav navbar-right">
<li><a href="LoggedOut.html">Log Out</a></li>
</ul>
</div>
</div>
</nav>
<br>
<!--<div id="col-sm-2" ondrop="drop(event)" ondragover="allowDrop(event)"></div>
<img id="student" src="student.jpg" draggable="true" ondragstart="drag(event)" width="100" height="100">-->
<br>
<div class= "col-md-3 well" style="float: left">
<center><p>Students</p></center>
<img id="OsamaSaeed" data-student-type="Osama Saeed" src="StudentImages/One.jpg" draggable="true" ondragstart="drag(event)" width="120" height="20">
<img id="ThomasAli" data-student-type=" Thomas Ali" src="StudentImages/Two.jpg" draggable="true" ondragstart="drag(event)" width="120" height="20">
<img id="AliMohammed" data-student-type="Ali Mohammed" src="StudentImages/Three.jpg" draggable="true" ondragstart="drag(event)" width="120" height="20">
<img id="LaurenDent" data-student-type="Lauren Dent" src="StudentImages/Four.jpg" draggable="true" ondragstart="drag(event)" width="120" height="20">
<img id="QuintonDial" data-student-type="Quntion Dial" src="StudentImages/Five.jpg" draggable="true" ondragstart="drag(event)" width="120" height="20">
<img id="AdeebAli" data-student-type="Adeeb Ali" src="StudentImages/Six.jpg" draggable="true" ondragstart="drag(event)" width="120" height="20">
<img id="BabsFab" data-student-type="Babs Fab" src="StudentImages/Seven.jpg" draggable="true" ondragstart="drag(event)" width="120" height="20">
<img id="ArtmanSummer" data-student-type="Artman Summer" src="StudentImages/Eight.jpg" draggable="true" ondragstart="drag(event)" width="120" height="20">
<img id="BykowskiDerek" data-student-type="Bykowski Derek" src="StudentImages/Nine.jpg" draggable="true" ondragstart="drag(event)" width="120" height="20">
<img id="AlisonRose" data-student-type="Alison Rose" src="StudentImages/Ten.jpg" draggable="true" ondragstart="drag(event)" width="120" height="20">
<img id="GraySonny" data-student-type="Gray Sonny" src="StudentImages/Eleven.jpg" draggable="true" ondragstart="drag(event)" width="120" height="20">
<img id="GregersonLuke" data-student-type="Gregerson Luke" src="StudentImages/Twelve.jpg" draggable="true" ondragstart="drag(event)" width="120" height="20">
<img id="AjayGriffin" data-student-type="Ajay Griffin" src="StudentImages/Thirteen.jpg" draggable="true" ondragstart="drag(event)" width="120" height="20">
<img id="JohnsonJinny" data-student-type="Johnson Jinny" src="StudentImages/Fourteen.jpg" draggable="true" ondragstart="drag(event)" width="120" height="20">
<img id="KazmirScoot" data-student-type="Kazmir Scoot" src="StudentImages/Fifteen.jpg" draggable="true" ondragstart="drag(event)" width="120" height="20">
<img id="LattimoreCorey" data-student-type="Lattimore Corey" src="StudentImages/Sixteen.jpg" draggable="true" ondragstart="drag(event)" width="120" height="20">
<img id="LeonLeon" data-student-type="Leon Leon" src="StudentImages/Seventeen.jpg" draggable="true" ondragstart="drag(event)" width="120" height="20">
<img id="MastersonSoph" data-student-type="Masterson Soph" src="StudentImages/Eighteen.jpg" draggable="true" ondragstart="drag(event)" width="120" height="20">
<img id="MurieJenna" data-student-type="Mure Jenna" src="StudentImages/Nineteen.jpg" draggable="true" ondragstart="drag(event)" width="120" height="20">
<img id="TomLawrence" data-student-type="Tom Lawrence" src="StudentImages/Twenty.jpg" draggable="true" ondragstart="drag(event)" width="120" height="20">
<img id="TrouncAmanda" data-student-type="Trounc Amanda" src="StudentImages/Twentyone.jpg" draggable="true" ondragstart="drag(event)" width="120" height="20">
<img id="LittleJohn" data-student-type="Little John" src="StudentImages/Twentytwo.jpg" draggable="true" ondragstart="drag(event)" width="120" height="20">
<img id="FrancisStacey" data-student-type="Francis Stacey" src="StudentImages/Twentythree.jpg" draggable="true" ondragstart="drag(event)" width="120" height="20">
<img id="DooliteSean" data-student-type="Doolite Sean" src="StudentImages/Twentyfour.jpg" draggable="true" ondragstart="drag(event)" width="120" height="20">
<img id="DialQuinton" data-student-type="Dial Quinton" src="StudentImages/Twentyfive.jpg" draggable="true" ondragstart="drag(event)" width="120" height="20">
<img id="DentLauren" data-student-type="Dent Lauren" src="StudentImages/Twentysix.jpg" draggable="true" ondragstart="drag(event)" width="120" height="20">
<img id="CookeyPamela" data-student-type="Cookey Pamela" src="StudentImages/Twentyseven.jpg" draggable="true" ondragstart="drag(event)" width="120" height="20">
<img id="CathNory" data-student-type="Cath Nory" src="StudentImages/Twentyeight.jpg" draggable="true" ondragstart="drag(event)" width="120" height="20">
<img id="NorhAhmd" data-student-type="Norh Ahmd" src="StudentImages/Twentynine.jpg" draggable="true" ondragstart="drag(event)" width="120" height="20">
<img id="OmarAli" data-student-type="Omar Ali" src="StudentImages/Thirty.jpg" draggable="true" ondragstart="drag(event)" width="120" height="20">
</div>
<div class="container well" style="float: right; width: 70%;">
<div class="row">
<div class="col-sm-2" id="S1" style="background-color:lavender;" ondrop="drop(event)" ondragover="allowDrop(event)">1</div>
<div class="col-sm-2" id="S2" style="background-color:lavenderblush;" ondrop="drop(event)" ondragover="allowDrop(event)">2</div>
<div class="col-sm-2" id="S3" style="background-color:lavender;" ondrop="drop(event)" ondragover="allowDrop(event)">3</div>
<div class="col-sm-2" id="S4" style="background-color:lavenderblush;" ondrop="drop(event)" ondragover="allowDrop(event)">4</div>
<div class="col-sm-2" id="S5" style="background-color:lavender;" ondrop="drop(event)" ondragover="allowDrop(event)">5</div>
</div>
</center>
<br>
<div class="row">
<div class="col-sm-2" id="S6" style="background-color:lavender;" ondrop="drop(event)" ondragover="allowDrop(event)">6</div>
<div class="col-sm-2" id="S7" style="background-color:lavenderblush;" ondrop="drop(event)" ondragover="allowDrop(event)">7</div>
<div class="col-sm-2" id="S8" style="background-color:lavender;" ondrop="drop(event)" ondragover="allowDrop(event)">8</div>
<div class="col-sm-2" id="S9" style="background-color:lavenderblush;" ondrop="drop(event)" ondragover="allowDrop(event)">9</div>
<div class="col-sm-2" id="S10" style="background-color:lavender;" ondrop="drop(event)" ondragover="allowDrop(event)">10</div>
</div>
<br>
<div class="row">
<div class="col-sm-2" id="S11" style="background-color:lavender;" ondrop="drop(event)" ondragover="allowDrop(event)">11</div>
<div class="col-sm-2" id="S12" style="background-color:lavenderblush;" ondrop="drop(event)" ondragover="allowDrop(event)">12</div>
<div class="col-sm-2" id="S13" style="background-color:lavender;" ondrop="drop(event)" ondragover="allowDrop(event)">13</div>
<div class="col-sm-2" id="S14" style="background-color:lavenderblush;" ondrop="drop(event)" ondragover="allowDrop(event)">14</div>
<div class="col-sm-2" id="S15" style="background-color:lavender;" ondrop="drop(event)" ondragover="allowDrop(event)">15</div>
</div>
<br>
<div class="row">
<div class="col-sm-2" id="S16" style="background-color:lavender;" ondrop="drop(event)" ondragover="allowDrop(event)">16</div>
<div class="col-sm-2" id="S17" style="background-color:lavenderblush;" ondrop="drop(event)" ondragover="allowDrop(event)">17</div>
<div class="col-sm-2" id="S18" style="background-color:lavender;" ondrop="drop(event)" ondragover="allowDrop(event)">18</div>
<div class="col-sm-2" id="S19" style="background-color:lavenderblush;" ondrop="drop(event)" ondragover="allowDrop(event)">19</div>
<div class="col-sm-2" id="S20" style="background-color:lavender;" ondrop="drop(event)" ondragover="allowDrop(event)">20</div>
</div>
<br>
<div class="row">
<div class="col-sm-2" id="S21" style="background-color:lavender;" ondrop="drop(event)" ondragover="allowDrop(event)">21</div>
<div class="col-sm-2" id="S22" style="background-color:lavenderblush;" ondrop="drop(event)" ondragover="allowDrop(event)">22</div>
<div class="col-sm-2" id="S23" style="background-color:lavender;" ondrop="drop(event)" ondragover="allowDrop(event)">23</div>
<div class="col-sm-2" id="S24" style="background-color:lavenderblush;" ondrop="drop(event)" ondragover="allowDrop(event)">24</div>
<div class="col-sm-2" id="S25" style="background-color:lavender;" ondrop="drop(event)" ondragover="allowDrop(event)">25</div>
</div>
<br>
<div class="row">
<div class="col-sm-2" id="S26" style="background-color:lavender;" ondrop="drop(event)" ondragover="allowDrop(event)">26</div>
<div class="col-sm-2" id="S27" style="background-color:lavenderblush;" ondrop="drop(event)" ondragover="allowDrop(event)">27</div>
<div class="col-sm-2" id="S28" style="background-color:lavender;" ondrop="drop(event)" ondragover="allowDrop(event)">28</div>
<div class="col-sm-2" id="S29" style="background-color:lavenderblush;" ondrop="drop(event)" ondragover="allowDrop(event)">29</div>
<div class="col-sm-2" id="S30" style="background-color:lavender;" ondrop="drop(event)" ondragover="allowDrop(event)">30</div>
</div>
<br>
<center>
<form action="" method="POST">
<input type="submit" class="btn btn-success" name="SavePlan" value="Save Plan" />
</form>
</center>
</div>
</body>
</html>below is the code to connect to the database.
<?php
$connection=m ysql_connect( "mi-linux.wlv.ac.uk", "user", "password");
if (!$connection) die( "Cannot connect to DataBase");
// making a connection to the database mysql_select_db("db1500052", $connection) or die( "Can not find DB");
?>
i have now managed to write a update.php page which will send the new position to the database, however still have not got around the jQuery and Ajax side of the html,
<?php
include("config.php");
$array = $_POST['listnumber'];
if ($POST['update'] == "order") {
$x = 1;
foreach ($array as $key => $value) {
$query = "UPDATE dragdrop SET listnumber = ". $x . "WHERE id = " . $value;
mysql_query($query) or die(mysql_error());
$x ++;
}
echo 'Saved';
} ?>
Upvotes: 0
Views: 4455
Answers (1)
bitfiddler
Reputation: 2115
Welcome to StackOverflow. There are (at least) two things you will need to learn about to do this.
First is how to send the data to your server. A good way to do that is using AJAX with an HTTP POST. Here is a good Q&A from SO that should get you started. You can use something like this within your drop event to send the data to the server: Sending an HTTP Post using Javascript triggered event
The second is how to insert data to your mysql database from the PHP code. Your connect example is a bit out of date - you should use the mysqli interface for better security. Learn that instead by starting with this article from the PHP documentation: http://php.net/manual/en/mysqli.query.php
Upvotes: 1
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