If there are two concurrent requests to create or edit change requests,
two separate ones may be created in parallel. The UI does not currently
handle this scenario, and if additional changes are made, they might be
added to a random existing change request—resulting in a messy and
unpredictable state.
This PR adds a unique index to the `change_requests` table
```
on (created_by, project, environment)
WHERE state NOT IN ('Applied', 'Cancelled', 'Rejected', 'Scheduled').
```
In the extremely rare case where such conflicting data already exists in
a database, the migration will automatically cancel one of the
conflicting change requests.
We're migrating to ESM, which will allow us to import the latest
versions of our dependencies.
Co-Authored-By: Christopher Kolstad <chriswk@getunleash.io>
This PR updates the returned value about segments to also include the CR
title and to be one list item per strategy per change request. This
means that if the same strategy is used multiple times in multiple
change requests, they each get their own line (as has been discussed
with Nicolae).
Because of this, this pr removes a collection step in the query and
fixes some test cases.
This PR handles the case where a single strategy is used in multiple
change requests. Instead of listing the strategy several times in the
output, we consolidate the entries and add a new `changeRequestIds`
property. This is a non-empty list that points to all the change
requests it is used in.
This is required for us to be able to link back to the change requests
from the UI overview.
This change is just a refactor, removing code that's no longer used. Instead of
checking just whether a segment is in use, we now extract the list of
strategies that use this segment. This is slightly more costly,
perhaps, but it will be necessary for the upcoming implementation.
This PR adds the ability to detect which strategies use a specific
segment in active change requests.
It does not wire this functionality up to anything just yet. Follow-up
PRs will integrate this with the segment service and eventually with the
front end.
This PR hooks up the changes introduced in #5301 to the API and puts
them behind a feature flag. A new test has been added and the test setup
has been slightly tweaked to allow this test.
When the flag is enabled, the API will now not let you delete a segment
that's used in any active CRs.
