To allow individual notifications to be
marked as read/unread or moderated,
bundles are created by grouping associated
notifications when they are fetched for display
instead of when they are created.
From a product perspective, this change doesn't
introduce moderation or expandable bundles but
it counts each individual notifications.
For instance, the bundled notification
"3 new topics on PageA" now counts as 3
notifications.
Bug: T93673
Bug: T120153
Change-Id: Iacd098573efd92bb1e3fcd7da4cd40cea9522f15
Adding up numbers in the front-end is not enough, because it could
be that not all pages are listed (it's a top 10). So get the
total count from the backend.
Change-Id: Ibbc76691ef88333b92132a514fdba3cde3797e10
The query shouldn't be too expensive: it'll use an index to narrow
down the resultset for 1 user. After that, it'll be sorted based on
a grouped by value, but that should fit in memory: it'll never be
on more than 2000 entries, which is the max amount of notifications
per user.
Change-Id: I271ea7f7a6e010284739bfce02c4ec8a077148fc
