PURPOSE
As event will soon evolve (onchange -> compute, code improvements, addition of
new features) cleaning and improving tests is necessary to help avoid issues.
SPECIFICATIONS
As event model grow in complexity and features, it is easier to find its
way through the application with having registration model lying in its
own file to separate it from event-specific models (event.type, event.event).
Ticket (event_sale) and sponsor (website_event_track) models are also extracted
in their own file.
LINKS
LINKS
Side effect of Task ID 2089156 (event onchange to compute)
Community PR odoo/odoo#43127
Enterprise PR odoo/enterprise#7656
* reword various texts in website_event to avoid references to a sell
or checkout process as website_event does not handle sakes;
* if there is only one ticket available, propose to take one by default.
Display Register Now instead of Order Now if tickets are free. Display
an error if the user chooses no tickets in its registration.;
* link in cart for event tickets redirects to event, not product;
* confirm attendees only at invoice payment;
* improve wording, use schedule instead of agenda.
Thibault Delavallée