Use cases:
A custom node type with a field that is set to allow multiple values (say documents as attachments). When the node is displayed as a teaser, there is a need to show the count of how many attachments have been added (not the actual attachments). How can one achieve this with the current core functionality?
A views listing of nodes of the type from the use case 1 above. Same deal, the count of the attached files needs to be displayed in a column. The only way I can think of in order to achieve this currently is to rewrite the output of the field using php (I think that this would require https://www.drupal.org/project/views_php which has not been ported yet) and mess with deltas (which novice users might not understand).
There's a module in d.org contrib that does that: https://www.drupal.org/project/field_count_formatter
Display formatter:
Views formatter:
I think that this would be a very nice addition to core views and field display formatters that would simplify a not so uncommon task.
Recent comments
https://www.drupal.org/project/views/issues/1266388 shows that this is an architectural issue, and requires another 2 hooks being adjusted. It would be really nice to add comments/notes to...
node access
Hmmm, from D7 ancient tomes: from https://drupal.stackexchange.com/questions/7056/limit-which-roles-can-view-a-node-basing-on-its-content-type yet https://docs.backdropcms.org/api/...
node access
I also note on this screen: "Furthermore note that content which is not published is treated in a different way by Backdrop: it can be viewed only by its author or users with the...
node access