Question

I am using a modal dialog opener that I want to open when a user clicks one of a few available buttons. The buttons all have a different “artist_id” associated with them. When a button is clicked, I also have a php script that should run and put the user id and artist id in a table that keeps track of the “liking” relationships. Below is the relevant code:

index.php:

//script
<script>
$(function() {
  $( "#dialog-modal" ).dialog({autoOpen: false, height: 250, width: 400, modal: true});

  $( "#opener" ).click(function() {
                       $( "#dialog-modal" ).dialog( "open" );

                       $.get('/like_artist.php', {artist_id : $(this).data('artist_id')})
                       .done(function(data) {

                             alert("Data Loaded: " + data.artist_id);

                             });

        });

  });
</script>

//button:

<button type="button" id="opener" data-artist_id="1">Play My City</button>

//dialog content (I would like to have this change based on the button clicked):

<div id="dialog-modal" title="Basic dialog">
<p>You have just liked ...</p>

<p>This is the default dialog which is useful for displaying information. The dialog window can be moved, resized and closed with the 'x' icon.</p>
</div>

like_artist.php: takes a user id and artist id and puts them in the relationship table user_artists

<?php 

session_start();
require_once "database.php";
db_connect();
require_once "auth.php";
$current_user = current_user();
include_once("config.php");

    $artist_id = $_GET['artist_id'];

    $user_id = $current_user['id'];

    $query = "INSERT INTO `user_artists`
    (`artist_id`, `user_id`)
    VALUES
    (''$artist_id', '$user_id')";

    $result = mysql_query($query);

?>

The alert I have put in the top script is there to see if I am getting the correct artist_id from the data-artist_id property, but it is not returning anything.

Thank you for your help!

Answer 1

You’re not returning (echoing) anything in like_artist.php, naturally your AJAX response will be empty as well.

echo json_encode(array('artist_id' => $artist_id));

Then you’ll have to decode it on the frontend.