WordPress Wedding RSVP using Gravity Forms - php

Question

I am building my wedding website and want to integrate an RSVP form using Gravity Forms. The issue I am running into is how to set certain guest that have +1's. I would like to show an additional guest entry (First Name, Last Name, Meal Option) when the initial First Name and Last Name has been populated. How would I go about doing this? Any help would be great! Thanks in advance!

Answer 1

Here is how I'd solve this problem:
First, you need to put everything in the DB, the easiest way would be to either do it manually or somehow loop through an array/CSV calling add_option($key, $value) Again, I would recommend a mobile/phone number as they'll be unique so you don't pull the wrong "John Smith". I'll assume you'll keep it basic with $key as the unique identifier and $value as boolean as to whether to show additional info. Interestingly, by default, if not found get_option($key) will return false and therefore not show your additional data, which I would assume you'd want anyway. If you'd rather it return true just pass true as the second argument.
Now for your answer:
Your URL is something like https://somesite.com/rsvp?id=1234.
function allowed_plus_one() {
$id = $_GET["id"];
$allowed = get_option($id);
return $allowed;
}
Then assumedly it'll be something like
if (allowed_plus_one()) {
// show form with plus one
} else {
// show form without
}
EDIT:
Keeping separate incase this has already been viewed.
You should also be checking for the existence of $_GET["id"] and behaving accordingly. eg:
if (isset($_GET["id"] && !empty($_GET["id"]) {
//do logic above
} else {
//here by mistake so don't show any form?
}