Commit Graph

11 Commits

Author SHA1 Message Date
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
David Taylor 5a003715d3
DEV: Apply syntax_tree formatting to `app/*` 2023-01-09 14:14:59 +00:00
Krzysztof Kotlarek 427d54b2b0 DEV: Upgrading Discourse to Zeitwerk (#8098)
Zeitwerk simplifies working with dependencies in dev and makes it easier reloading class chains. 

We no longer need to use Rails "require_dependency" anywhere and instead can just use standard 
Ruby patterns to require files.

This is a far reaching change and we expect some followups here.
2019-10-02 14:01:53 +10:00
Sam Saffron 30990006a9 DEV: enable frozen string literal on all files
This reduces chances of errors where consumers of strings mutate inputs
and reduces memory usage of the app.

Test suite passes now, but there may be some stuff left, so we will run
a few sites on a branch prior to merging
2019-05-13 09:31:32 +08:00
Sam 5f64fd0a21 DEV: remove exec_sql and replace with mini_sql
Introduce new patterns for direct sql that are safe and fast.

MiniSql is not prone to memory bloat that can happen with direct PG usage.
It also has an extremely fast materializer and very a convenient API

- DB.exec(sql, *params) => runs sql returns row count
- DB.query(sql, *params) => runs sql returns usable objects (not a hash)
- DB.query_hash(sql, *params) => runs sql returns an array of hashes
- DB.query_single(sql, *params) => runs sql and returns a flat one dimensional array
- DB.build(sql) => returns a sql builder

See more at: https://github.com/discourse/mini_sql
2018-06-19 16:13:36 +10:00
Sam 12fd0b827e PERF: release results in a couple of cases 2018-06-13 15:11:43 +10:00
Robin Ward 971e302ff2 FEATURE: Support an end date for user silencing 2017-11-14 13:20:19 -05:00
Robin Ward 1f14350220 Rename "Blocked" to "Silenced" 2017-11-10 14:10:27 -05:00
Guo Xiang Tan 1ab60d83df PERF: Terminate scheduled job earlier if badge is not enabled. 2017-06-26 10:13:58 +09:00
Guo Xiang Tan 6cc174ca82 PERF: Fetch users in batches in grant anniversary badge job. 2017-06-23 16:54:35 +09:00
Robin Ward f05f1a24d3 Change Anniversary badge to be multiple grant, once per year 2017-04-28 14:22:54 -04:00