Context Navigation

Changes between Initial Version and Version 1 of Ticket #34450, comment 6

initial	v1
1		[attachment:34450.~~patch~~] is an updated patch that makes use of `WP_Site_Query` (via `get_sites()`) in the function. This also allows us to get rid of the `get_id_from_blogname_*` cache key, since site query results are cached anyway. An additional benefit we get is that the function now actually returns an integer, as stated in the docs (before the return value would actually be a string, due to `wpdb::get_var()`).
	1	[attachment:34450.diff] is an updated patch that makes use of `WP_Site_Query` (via `get_sites()`) in the function. This also allows us to get rid of the `get_id_from_blogname_*` cache key, since site query results are cached anyway. An additional benefit we get is that the function now actually returns an integer, as stated in the docs (before the return value would actually be a string, due to `wpdb::get_var()`).
2	2
3	3	The patch also adds unit tests, one for a www-prefixed network, another one without www.