Additional data for page relations

[MrSnoozles]

Short description of the enhancement

When a page is referencing another page, make it possible to add additional information to the relation

Why would the enhancement be useful to users?

Some examples:

1) Team members with different roles
Imagine there's a template "team" referencing many "user"s.
Now in the team there are different roles, e.g. "coach", "member" and "trial". Right now we would have to add different page reference fields (that are all referencing "user" objects). Having additional data on relations would make this much easier.

2) Join-date for team members
Staying with the team members example, it would be useful to store, when each member joined the team. So far I would not know how to achieve that with the current feature set. Probably by storing some information in a JSON textfield in the team.

[MrSnoozles]

There is this module that tries to solve the problem: https://processwire.com/talk/topic/26165-page-reference-context-data/

[Toutouwai]

A new module that can help with this need (requires ProFields Table): https://processwire.com/talk/topic/26525-select-once-per-table-store-extra-information-for-selected-pages/