Class not found after ajax request - October cms - ajax

Question

For my application in october cms I'd like to be able to send a mail with the click of a button. I call the php file with an ajax request, however when the button gets clicked I get the error 'class not found' for whichever class I use, doesn't matter which. I already added the file to .htaccess to be able to run it on the button click. I included all classes at the top of the file. Also when I turn it into an artisan command and run it with php artisan now:send:mail it works without any issues. I already tried to run composer dump autoload and composer dump autoload -o. Code is down below, Any idea what I can do to make this work, or in what other way it could be done?
Thanks in advance!
Part of theme.js:
$.ajax({
url : '/plugins/test/notifications/ondemand/OnDemand.php'
}).done(function(data) {
console.log(data);
});
OnDemand.php:
<?php
namespace Test\Notifications\OnDemand;
use Illuminate\Support\Facades\DB;
use Illuminate\Support\Facades\Mail;
use Test\Poles\Components\Metrics;
use October\Rain\Argon\Argon;
class OnDemand
{
public function send()
{
$date = Argon::now(config('app.timezone'))->format('Y-m-d');
// get some data
$array = ['date' => $date, 'score' => $score, 'CO2' => $CO2, 'scorecar' => $scorecar, 'scorebike' => $scorebike];
$email = "test#test.nl";
Mail::sendTo($email, 'daily.mail', $array);
}
}
$mail = new OnDemand;
$mail->send();

Answer 1

I'm not sure whether you want to do this as part of a custom October plugin you've developed or simply inside a regular October template. However, the absolutely simplest way of having an ajax button to send an email would be as follows:
1) Create a new mail template in the October backend in Settings | Mail Templates
2) In the "CMS" section of October, create a new blank Page
3) For the "Markup" section of the new page, the button HTML:
<button data-request="onPressButton">Send</button>
4) For the "Code" section of the new page, the following PHP:
use Illuminate\Support\Facades\DB;
use Illuminate\Support\Facades\Mail;
use Test\Poles\Components\Metrics;
use October\Rain\Argon\Argon;
function onPressButton()
{
$date = Argon::now(config('app.timezone'))->format('Y-m-d');
// get some data
$array = ['date' => $date, 'score' => $score, 'CO2' => $CO2, 'scorecar' => $scorecar, 'scorebike' => $scorebike];
$email = "test#test.nl";
Mail::sendTo($email,'daily.mail', $array);
}
That's it. As long as you include JQuery and {% framework extras %} in your October page layout, the above will work.
The principal is the same if you're adding this within a custom plugin that you've developed, but the HTML and PHP would obviously go into their individual files within a component if you did it that way.