On our site, Users shall create a list of destinations they like to receive a deal alert. New posts are associated with destinations as well and when a new post is published, all users that added that destination to their list shall receive a notification.
I implemented that by creating a custom taxonomy “destination” and a custom field for both users and posts where they can select the destinations they find interesting. Though I am having issues with the final implementation and would like to have your feedback if there is a smarter way to do this.
Right now, we the users adds a destination to his list in our frontend which starts an ajax request to this backend code:
$deal_alert = get_field('deal_alert', wp_get_current_user());
$travel_destination_id = intval($_POST['travel_destination_id']);
array_push($deal_alert, $travel_destination_id);
update_field('deal_alert', $deal_alert, wp_get_current_user());
This does the job and the data is saved to the usermeta-table with
a:2:{i:0;i:532;i:1;i:523;}
Though when I want to query for users that are associated with taxonomy 5 or 4, it would like this:
'meta_query' => array(
array(
'key' => 'deal_alert',
'value' => '4',
'compare' => 'LIKE'
),
array(
'key' => 'deal_alert',
'value' => '5',
'compare' => 'LIKE'
)
)
And will return also the user which has the taxonomy with id 524 selected.
What am I doing wrong? How should I implement this properly that a) both posts and users have a list of destinations and b) there is an efficient way to query the few out of 1.000+ users that have selected certain taxonomies?
I highly appreciate your feedback, our project is close to deadline and I am not sure how to do this 😉
