Support Notification System

[breezewish]

A notification system is useful for discussions, comments and in-site messages.

1. In the following cases a notification is generated:
   • the user is mentioned
   • the user's topic is being commented
   • the user's comment or solution is being replied (notice: we use @ to implement reply, so that we need to distinguish whether an @ is a reply)
   • the user receives a in-site message
   • the user's solution is marked as "editorial solution"
2. Develop a notification center, displaying all unread and history notifications.
3. Show unread notification count at the navigation bar.
4. Nice-to-have: Allow additionally sending an email for each case in Point 1.
   • the user can disable receiving notification email for each case respectively in the preference page.
   • to prevent flooding user's mailbox & prevent our service being abused, the notification email is not send in real time. Instead it aggregates all notifications in past few minutes (e.g. 30 minutes).
5. The user can disable or re-enable receiving notification for specified topic or comment. When notification for something is disabled, mails are not sent as well.

[twd2]

4. Should aggregate all notifications in past 1 week.

[breezewish]

@twd2 I think the delay of one week might be too long. The users may have forgotten the context after one week's time. Usually it is the report instead of the notification delivered in such period.

[undefined-moe]

Users need notification center! Emails are not necessary, but you can add a floating tip on other pages. e.g: When I visits vijos, I can notify the "New message" on the page, then I can click on it to view the message.