In 14cf8eacf1, we added the
`user_search_similar_results` site setting which when enabled will use
trigram matching for similarity search in `UserSearch`. However, we
noted that adding the `index_users_on_username_lower_trgm` index is
causing the PG planner to not use the `index_users_on_username_lower`
index when the `=` operator is used against the `username_lower` column.
Based on the PG mailing list discussion where support for the `=`
operator in gist_trgm_ops was being considered, it stated that "I also have checked that btree_gist is preferred over pg_trgm gist
index for equality search." This is however quite different from reality
on our own PG clusters where the btree index is not preferred leading to
significantly slower queries when the `=` operator is used.
Since the pg_trgm gist index is only used for queries when the `user_search_similar_results` site setting
is enabled, we decided to drop the feature instead as it is hidden and
disabled by default. As such, we can consider it experiemental and drop
it without deprecation.
PG mailing list discussiong: https://www.postgresql.org/message-id/CAPpHfducQ0U8noyb2L3VChsyBMsc5V2Ej2whmEuxmAgHa2jVXg%40mail.gmail.com
Users can hide their public profile and presence information by checking
“Hide my public profile and presence features” on the
`u/{username}/preferences/interface` page. In that case, we also don't
want to return user status from the server.
This work has been started in https://github.com/discourse/discourse/pull/23946.
The current PR fixes all the remaining places in Core.
Note that the actual fix is quite simple – a5802f484d.
But we had a fair amount of duplication in the code responsible for
the user status serialization, so I had to dry that up first. The refactoring
as well as adding some additional tests is the main part of this PR.
Currently, when doing `@mention` for users we have 0 tolerance for typos and misspellings.
With this patch, if a user search doesn't return enough results we go and use `pg_trgm` features to try and find more matches based on trigrams of usernames and names.
It also introduces GiST indexes on those fields in order to improve performance of this search, going from 130ms down to 15ms in my tests.
This is all gated in a feature flag and can be enabled by running `SiteSetting.user_search_similar_results = true` in the rails console.
Will show the last 6 seen users as filtering suggestions when typing @ in quick search. (Previously the user suggestion required a character after the @.)
This also adds a default limit of 6 to the user search query, previously the backend was returning 20 results but a maximum of 6 results was being shown anyway.
Over the years we accrued many spelling mistakes in the code base.
This PR attempts to fix spelling mistakes and typos in all areas of the code that are extremely safe to change
- comments
- test descriptions
- other low risk areas
Not when doing a site-wide search like we do in the Directory.
This solves the following specfailure:
1) DirectoryItemsController with data finds user by name
Failure/Error: expect(json['directory_items'].length).to eq(1)
expected: 1
got: 0
(compared using ==)
# ./spec/requests/directory_items_controller_spec.rb:88:in `block (3 levels) in <main>'
# ./spec/rails_helper.rb:271:in `block (2 levels) in <top (required)>'
# ./bundle/ruby/2.7.0/gems/webmock-3.11.1/lib/webmock/rspec.rb:37:in `block (2 levels) in <top (required)>'
When doing a user search (eg. when mentioning a user) we will not prioritie
users who hasn't been seen in over a year.
REFACTOR the user-search specs to be more precise regarding the ordering
Lots of changes but it's mostly a refactoring.
The interesting part that was fix are the 'load_problem_<model>_ids' methods.
They will now return records with no search data associated so they can be properly indexed for the search.
This "bad" state usually happens after a migration.
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.
This feature allows @ mentions to prioritize showing members of a group who
have explicit permission to a category.
This makes it far easier to @ mention group member when composing topics in
categories where only the group has access.
For example:
If Sam, Jane an Joan have access to bugs category.
Then `@` will auto complete to (jane,joan,sam) ordered on last seen at
This feature works on new topics and existing topics. There is an explicit
exclusion of trust level 0,1,2 groups cause they get too big.
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
Following this change when a user hits `@` and is replying to a topic they
will see usernames of people who were last seen and participated in the topic
This is somewhat experimental, we may tweak this, or make it optional.
Also, a regression in a423a938 where hitting TAB would eat a post you were writing:
Eg this would eat a post:
``` text
@hello, testing 123 <tab>
```
Also
- Significantly improved search ranking, title is treated most strongly
- Adds tag names to the index
- Run search re-indexer more aggressively
- Re-index topic and all posts on category change
If you allow a group to be mentioned it can be mentioned with the @ symbol.
Keep in mind as a safety mechanism max_users_notified_per_group_mention is set to 100
