And will you be doing that for every ticket type for every event? ?? Because each event creates its own ticket_id (check the database wp_em_tickets), even if details seem alike. Since cut-off times (and dates) differ, EM makes a new ticket ID every time you create an event.
So you cannot really re-use the ticket ID in a future event. Targeting with “17” is not a great idea ??
A question that came into my head:
Why would you want to pre-fill these fields?? And how would you know with what value? Are you trying to put in a placeholder, perhaps? Because the jQuery property is different then. A placeholder is more user-friendly than a value, as a placeholder automatically disappears when the field is selected. Also, placeholders are seen as “empty fields” when submitting the form. If you fill it as a default value, users can submit without changing the defaults. And you will get submissions without the actual required data. ??
Back to the jQuery…
You will need to be looking into a solution more with .each() to loop through the inputs.
I took a new/closer look at the Attendee Form. Strangely enough the field ID is reused. Not the way it is supposed to be, but hey, you can benefit from that.;-)
Currently only ticket 17 (for the T-shirt) prefills with “dummy-voornaam”.
Okay, just thinking out loud now (so not tested):
Perhaps you could try something like this:
$('#attendee_voornaam').each( function() {
$(this).val('Mijn voornaam');
});
Hmmmm…. Perhaps you need to first target the spaces dropdown (.em-ticket-select), because the attendee fields are generated upon changing the selection. Look in your page source to see the fields are not on page load ??
So then you would end up with a function triggering a function.
jQuery.noConflict();
jQuery(document).ready(function($) {
$(document.body).on('change', '.em-ticket-select', function() {
$('#attendee_voornaam').each( function() { $(this).attr("placeholder", "Mijn voornaam"); });
$('#attendee_achternaam').each( function() { $(this).attr("placeholder", "...en dit is mijn achternaam"); });
}).trigger('change');
});
Btw, you need to update the PayPal logo url (in EM Gateways) to use https://. It now gives a notice in the console. ??