discourse/plugins/discourse-ai/spec/lib/utils/research
Sam 0bad05d036
DEV: Extract reusable PostsFilter into core (#40436)
Promotes the posts query-string filter that previously lived in
discourse-ai's `Research::Filter` to a core `PostsFilter` class so it
can
be shared across core and plugins. The parser gains alias support
(`categories`, `exclude_category`, `exclude_tag`, `created_after`, ...),
`-`/`=`/`-=` exclusion prefixes, an `option_info` helper for
autocomplete,
and an `add_filter`/`remove_filter` extension API backed by a new
`posts_filter_options` plugin modifier.

Consumers are updated to build on the shared class:

* discourse-ai: `Research::Filter` becomes a thin subclass, the
researcher
  tool documents the new exclusion syntax, and the report context
generator builds its relation from a PostsFilter query string instead of
  hand-rolled SQL.
* discourse-assign: registers an `assigned_to:` filter (supporting
  `nobody`, `*` and usernames) and contributes its autocomplete entry.
* discourse-workflows: adds an `action:post` node with create/get/list
operations built on PostsFilter, and extracts a shared `PostHelper`
mixin
  reused by the existing create_post node.

Adds core locale strings and specs for the new class.

We also added two new APIs to node context to facilitate working with
posts:

#### `exec_ctx.create_post`

Creates a post while enforcing workflow actor permissions and preventing
recursive workflow execution.

```rb
post =
  exec_ctx.create_post(
    user: author,
    raw: "Reply body",
    topic_id: topic_id,
    reply_to_post_number: reply_to_post_number,
  )
```

Arguments:

- `user:` required `User` object used as the post author.
- `raw:` required raw post body.
- `topic_id:` required topic id where the post should be created.
- `reply_to_post_number:` optional post number to reply to.

The helper verifies that the author can see the topic, rejects closed or
archived topics, and creates the post with `skip_workflows: true`.

#### `exec_ctx.serialize_post`

Serializes a post into the standard Discourse Workflows post output
shape.

```rb
data =
  exec_ctx.serialize_post(
    post,
    guardian: actor.guardian,
    include_raw: true,
    include_cooked: false,
  )
```

Arguments:

- `post` required `Post` record.
- `guardian:` optional guardian used for permission-aware fields such as
visible tags. Defaults to the system guardian.
- `include_raw:` optional boolean. Defaults to `true`.
- `include_cooked:` optional boolean. Defaults to `false`.

Use this helper whenever a workflow node outputs post data. It keeps
post outputs consistent across action and trigger nodes.

---------

Co-authored-by: discourse-patch-triage[bot] <272280883+discourse-patch-triage[bot]@users.noreply.github.com>
Co-authored-by: Joffrey JAFFEUX <j.jaffeux@gmail.com>
2026-06-02 14:52:47 +02:00
..
llm_formatter_spec.rb DEV: Extract reusable PostsFilter into core (#40436) 2026-06-02 14:52:47 +02:00