# What this PR does
https://www.loom.com/share/c5e10b5ec51343d0954c6f41cfd6a5fb
## Summary of backend changes
- Add `AlertReceiveChannel.get_orgs_direct_paging_integrations` method
and `AlertReceiveChannel.is_contactable` property. These are needed to
be able to (optionally) filter down teams, in the `GET /teams` internal
API endpoint
([here](https://github.com/grafana/oncall/pull/3128/files#diff-a4bd76e557f7e11dafb28a52c1034c075028c693b3c12d702d53c07fc6f24c05R55-R63)),
to just teams that have a "contactable" Direct Paging integration
- `engine/apps/alerts/paging.py`
- update these functions to support new UX. In short `direct_paging` no
longer takes a list of `ScheduleNotifications` or an `EscalationChain`
object
- add `user_is_oncall` helper function
- add `_construct_title` helper function. In short if no `title` is
provided, which is the case for Direct Pages originating from OnCall
(either UI or Slack), then the format is `f"{from_user.username} is
paging <team.name (if team is specified> <comma separated list of
user.usernames> to join escalation"`
- `engine/apps/api/serializers/team.py` - add
`number_of_users_currently_oncall` attribute to response schema
([code](https://github.com/grafana/oncall/pull/3128/files#diff-26af48f796c9e987a76447586dd0f92349783d6ea6a0b6039a2f0f28bd58c2ebR45-R52))
- `engine/apps/api/serializers/user.py` - add `is_currently_oncall`
attribute to response schema
([code](https://github.com/grafana/oncall/pull/3128/files#diff-6744b5544ebb120437af98a996da5ad7d48ee1139a6112c7e3904010ab98f232R157-R162))
- `engine/apps/api/views/team.py` - add support for two new optional
query params `only_include_notifiable_teams` and `include_no_team`
([code](https://github.com/grafana/oncall/pull/3128/files#diff-a4bd76e557f7e11dafb28a52c1034c075028c693b3c12d702d53c07fc6f24c05R55-R70))
- `engine/apps/api/views/user.py`
- in the `GET /users` internal API endpoint, when specifying the
`search` query param now also search on `teams__name`
([code](https://github.com/grafana/oncall/pull/3128/files#diff-30309629484ad28e6fe09816e1bd226226d652ea977b6f3b6775976c729bf4b5R223);
this is a new UX requirement)
- add support for a new optional query param, `is_currently_oncall`, to
allow filtering users based on.. whether they are currently on call or
not
([code](https://github.com/grafana/oncall/pull/3128/files#diff-30309629484ad28e6fe09816e1bd226226d652ea977b6f3b6775976c729bf4b5R272-R282))
- remove `check_availability` endpoint (no longer used with new UX; also
removed references in frontend code)
- `engine/apps/slack/scenarios/paging.py` and
`engine/apps/slack/scenarios/manage_responders.py` - update Slack
workflows to support new UX. Schedules are no longer a concept here.
When creating a new alert group via `/escalate` the user either
specifies a team and/or user(s) (they must specify at least one of the
two and validation is done here to check this). When adding responders
to an existing alert group it's simply a list of users that they can
add, no more schedules.
- add `Organization.slack_is_configured` and
`Organization.telegram_is_configured` properties. These are needed to
support [this new functionality
](https://github.com/grafana/oncall/pull/3128/files#diff-9d96504027309f2bd1e95352bac1433b09b60eb4fafb611b52a6c15ed16cbc48R271-R272)
in the `AlertReceiveChannel` model.
## Summary of frontend changes
- Refactor/rename `EscalationVariants` component to `AddResponders` +
remove `grafana-plugin/src/containers/UserWarningModal` (no longer
needed with new UX)
- Remove `grafana-plugin/src/models/user.ts` as it seemed to be a
duplicate of `grafana-plugin/src/models/user/user.types.ts`
Related to https://github.com/grafana/incident/issues/4278
- Closes#3115
- Closes#3116
- Closes#3117
- Closes#3118
- Closes#3177
## TODO
- [x] make frontend changes
- [x] update Slack backend functionality
- [x] update public documentation
- [x] add/update e2e tests
## Post-deploy To-dos
- [ ] update dev/ops/production Slack bots to update `/escalate` command
description (should now say "Direct page a team or user(s)")
## Checklist
- [x] Unit, integration, and e2e (if applicable) tests updated
- [x] Documentation added (or `pr:no public docs` PR label added if not
required)
- [x] `CHANGELOG.md` updated (or `pr:no changelog` PR label added if not
required)
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