Multiple category support

[fluffy-critter]

Expected Behavior

Sometimes it’s useful to have a single entry live inside multiple categories. To this end it would be great if an entry could have multiple category headers.

Current Behavior

If multiple categories are specified, it’s undefined as to which will be used but only one will.

Possible Solution

Change the category column to an EntryCategory table with a set-type mapping. Change the queries accordingly. Difficulty will be in generating permalinks for an entry - when an entry is loaded we can set the default category then (eg set by the view) and the permalink method can take an override.

When an entry page is requested the redirect should see if the current category is in the set first of course. And the default category if unknown is just ???

Steps to Reproduce (for bugs)

Context

[fluffy-critter]

In the case of recursive views is it okay to pretend the entry lives in its parent categories too? If an entry lives in /a/b/c/123 and /a/b/d/123 and someone requests it as /a/123 what happens?

[fluffy-critter]

And is there even a use case for this?