discourse/app/jobs/scheduled/grant_anniversary_badges.rb
Régis Hanol b704e338ef
DEV: extract anniversary badge query (#19716)
So it can easily be overwritten in a plugin for example.

### Added more tests to provide better coverage

We previously only had `u.silenced_till IS NULL` but I made it consistent with pretty much every other places where we check for "active" users.

These two new lines do change the query a tiny bit though. 

**Before** 

- You could not get the badge if you were currently silenced (no matter what period is being checked)
- You could get the badge if you were suspended 😬 

**After**

- You can't get the badge if you were silenced during the past year
- You can't get the badge if you were suspended during the past year


### Improved the performance of the query by using `NOT EXISTS` instead of `LEFT JOIN / COUNT() = 0`

There is no difference in behaviour between 

```sql
LEFT JOIN user_badges AS ub ON ub.user_id = u.id AND ...
[...]
HAVING COUNT(ub.*) = 0
```

and

```sql
NOT EXISTS (SELECT 1 FROM user_badges AS ub WHERE ub.user_id = u.id AND ...)
```

The only difference is performance-wise. The `NOT EXISTS` is 10-30% faster on very large databases (aka. posts and users in X millions). I checked on 3 of the largest datasets I could find.
2023-01-16 11:55:00 +01:00

23 lines
593 B
Ruby

# frozen_string_literal: true
module Jobs
class GrantAnniversaryBadges < ::Jobs::Scheduled
every 1.day
def execute(args)
return unless SiteSetting.enable_badges?
return unless badge = Badge.find_by(id: Badge::Anniversary, enabled: true)
start_date = args[:start_date] || 1.year.ago
end_date = start_date + 1.year
sql = BadgeQueries.anniversaries(start_date, end_date)
user_ids = DB.query_single(sql)
User
.where(id: user_ids)
.find_each { |user| BadgeGranter.grant(badge, user, created_at: end_date) }
end
end
end