Notification system for items of interest

[raquelalegre]

Simplest mechanism is to show a page when the user logs in which displays comments/edits etc for any item, or related items, to which the user is subscribed since they were last active on the site. So to do this:

• store the last active timestamp of the user in the system (not last login as they might remain signed in)
• allow the user to 'follow' objects on the site, e.g. fragments etc
  Then either:
• query database for new items each time they make an action on the site and display new items on the toolbar - potentially impacts performance as this check is done on every action of the user
• better: a 'feed' where the user sees activity relating to things they are following on a specific 'feed' page meaning this check on new items is only done when they visit that page

[raquelalegre]

@peterbispham do you have any suggestions for a Django module that can do notifications on items of interest?