I want to display an alert message inside a loop fetching records from the database. The problem is, the popup only works for one item and the other item shows no popup.
What's going wrong?
PHP:
$query = "SELECT * FROM discount
WHERE consecutivedays <= DATEDIFF('$date2','$date1')
AND idbeach = '$idbeach'
ORDER BY consecutivedays desc
LIMIT 1";
$results = mysqli_query($conn, $query);
while($row = $results->fetch_assoc()){
$reserved= $row['discountperc'];
if ($reserved=="yes") {
$getbooking = new WA_MySQLi_RS("getbooking",$sis,1);
$getbooking->setQuery("SELECT `name`,
CONCAT(`datein`,' - ',`dateout`) AS dates,
price,discount,comment
FROM booking
where idseatbeach = '$idseatbeach'
order by datein limit 1");
$getbooking->execute();
$name=$getbooking->getColumnVal("name");
$dates=$getbooking->getColumnVal("dates");
$price=$getbooking->getColumnVal("price");
$discount=$getbooking->getColumnVal("discount");
$comment=$getbooking->getColumnVal("comment");
$message = "Booked by: $name\n
Date range: $dates\n
Price :$price\n
Discount :$discount\n
Comment :$comment";
?>
<div class="item" >
<div class="popup" onclick="myFunction()">
<span class="popuptext" id="myPopup"><?php echo $message;?></span>
<img src="images/umbrelladisactive.png" width="35" height="35"
alt="<?php echo $nameseat; ?> "/>
<p style="margin-right: 0px; color: blue;">Currently Booked</p>
</div>
</div>
<?php
}
}
JavaScript:
var stile = "top=10, left=10, width=450, height=350,
status=no, menubar=no, toolbar=no scrollbars=no";
function myFunction() {
var popup = document.getElementById("myPopup");
popup.classList.toggle("show");
}
CSS:
.item {
width: 100px;
text-align: center;
display: block;
background-color: transparent;
border: 1px solid transparent;
margin-right: 10px;
margin-bottom: 1px;
float: left;
}
#index-gallery {
width: 50px;
}
/* Popup container */
.popup {
position: relative;
display: inline-block;
cursor: pointer;
}
/* The actual popup (appears on top) */
.popup .popuptext {
visibility: hidden;
width: 160px;
background-color: #555;
color: #fff;
text-align: center;
border-radius: 6px;
padding: 8px 0;
position: absolute;
z-index: 1;
bottom: 125%;
left: 50%;
margin-left: -80px;
}
/* Popup arrow */
.popup .popuptext::after {
content: "";
position: absolute;
top: 100%;
left: 50%;
margin-left: -5px;
border-width: 5px;
border-style: solid;
border-color: #555 transparent transparent transparent;
}
/* Toggle this class when clicking on the popup container (hide and show the popup) */
.popup .show {
visibility: visible;
-webkit-animation: fadeIn 1s;
animation: fadeIn 1s
}
/* Add animation (fade in the popup) */
@-webkit-keyframes fadeIn {
from {
opacity: 0;
}
to {
opacity: 1;
}
}
@keyframes fadeIn {
from {
opacity: 0;
}
to {
opacity: 1;
}
}
An ID in HTML must be unique to the document, meaning that you can't repeat it in a loop. I recommend using a class instead, so it can be repeated.
You'll need to popup the element that's associated with (nested inside) whichever element was clicked. I recommend adding an event listener to each .popop
that will fire a handler function upon click. The function should find the popup text within the clicked element by using querySelector
and toggle its "show" class.
Here's an rudimentary example:
// define a function to show a popup's popuptext. function popItUp() { this.querySelector('.popuptext').classList.toggle("show"); } // define all popup elements. let popups = document.querySelectorAll('.popup'); // add listener to each popup element, which binds handler function to click event. popups.forEach( popup => popup.addEventListener('click', popItUp) ); /* // The arrow function above is equivalent to: popups.forEach(function(popup){ popup.addEventListener('click', popItUp); }); */
.item { width: 100px; text-align: center; display: block; background-color: transparent; border: 1px solid transparent; margin: 80px 0 0 50px; float: left; } .popup { position: relative; cursor: pointer; } .popup .popuptext { visibility: hidden; width: 160px; background-color: #555; color: #fff; text-align: center; border-radius: 6px; padding: 8px 0; position: absolute; z-index: 1; bottom: 125%; left: 50%; margin-left: -80px; } .popup .popuptext::after { content: ""; position: absolute; top: 100%; left: 50%; margin-left: -5px; border-width: 5px; border-style: solid; border-color: #555 transparent transparent transparent; } .popuptext.show { visibility: visible; -webkit-animation: fadeIn 1s; animation: fadeIn 1s } @-webkit-keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } } @keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }
<div class="item"> <div class="popup"> <span class="popuptext">Popup Message 1</span> <p>Currently Booked</p> </div> </div> <div class="item"> <div class="popup"> <span class="popuptext">Popup Message 2</span> <p>Currently Booked</p> </div> </div> <div class="item"> <div class="popup"> <span class="popuptext">Popup Message 3</span> <p>Currently Booked</p> </div> </div>
There are likely some other layout issues with the CSS, but this might give you an idea of the JavaScript implementation.
For reference:
The
id
global attribute defines an identifier (ID) which must be unique in the whole document.
The Document method
querySelectorAll()
returns a static (not live) NodeList representing a list of the document's elements that match the specified group of selectors.
The EventTarget method
addEventListener()
sets up a function that will be called whenever the specified event is delivered to the target.
The
querySelector()
method of the Element interface returns the first element that is a descendant of the element on which it is invoked that matches the specified group of selectors.
Incidentally, I also notice that your query includes LIMIT 1
, so the while
loop will not iterate more than once. You may want to remove (or increase) that limit:
$query = "SELECT * FROM discount
WHERE consecutivedays <= DATEDIFF('$date2','$date1')
AND idbeach = '$idbeach'
ORDER BY consecutivedays desc;";
In HTML, the id
attribute was designed to be unique in a document. document.getElementById()
will always only return one element.
One way to solve your problem is to give each popup a unique id
, and pass this id
on to myFunction()
so it knows which popup to display (I've removed all the in-between lines of code for the sake of brevity).
I assume your database records have some unique identifier along with name
, dates
, price
, discount
and column
but since you haven't selected it in your current code I don't know for sure. If it doesn't, one alternative is to keep track of a unique counter yourself, such as $id
here:
$id = 0;
while($row = $results->fetch_assoc()){
$id++;
Then you can send that $id
value on to your function and your popup id
attribute to help Javascript figure out what you want:
<div class="popup" onclick="myFunction('myPopup<?php echo $id; ?>')">
<span class="popuptext" id="myPopup<?php echo $id; ?>"><?php echo $message;?></span>
Your function should then be modified to understand that change:
function myFunction(elementId) {
var popup = document.getElementById(elementId);
popup.classList.toggle("show");
}
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