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feat(Segment membership): Refresh membership counts on segment edit#7828

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feat/segment-edit-membership-refresh
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feat(Segment membership): Refresh membership counts on segment edit#7828
khvn26 wants to merge 1 commit into
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feat/segment-edit-membership-refresh

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@khvn26

@khvn26 khvn26 commented Jun 18, 2026

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Thanks for submitting a PR! Please check the boxes below:

  • I have read the Contributing Guide.
  • I have added information to docs/ if required so people know about the feature.
  • I have filled in the "Changes" section below.
  • I have filled in the "How did you test this code" section below.

Changes

Closes #7470.

In this PR, we wire the per-project segment membership count cache refresh into the segment edit paths. The daily backfill stays as the safety net for projects whose segments aren't edited.

A new enqueue_membership_refresh(project) service queues refresh_project_segment_counts for a project with a debounce to protect against rapid successive edits.

It's called from each path that creates or edits a canonical segment:

  • Creating a segment (SegmentSerializer.create)
  • Editing a segment (SegmentSerializer.update)
  • Cloning a segment (the clone viewset action)
  • Importing from LaunchDarkly (once after process_import_request completes)

Segment deletion is left to the daily backfill, which prunes stale count rows.

How did you test this code?

Added new tests:

  • Unit tests for enqueue_membership_refresh covering the flag gate, the per-project debounce, and that an enqueued refresh runs end to end.
  • Integration tests asserting each path triggers the refresh: create, update, and clone via the API, and the LaunchDarkly import.

Wire the per-project segment membership count refresh into the segment
create, update, clone and LaunchDarkly import paths via a new
`enqueue_membership_refresh` service, so edits refresh counts within
minutes instead of waiting for the daily backfill. The service debounces
per project and no-ops when the feature flag is off.

beep boop
@khvn26 khvn26 requested review from a team as code owners June 18, 2026 17:40
@khvn26 khvn26 requested review from emyller and removed request for a team June 18, 2026 17:40
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Project Deployment Actions Updated (UTC)
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@github-actions github-actions Bot added api Issue related to the REST API docs Documentation updates feature New feature or request and removed docs Documentation updates labels Jun 18, 2026
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Docker builds report

Image Build Status Security report
ghcr.io/flagsmith/flagsmith-api-test:pr-7828 Finished ✅ Skipped
ghcr.io/flagsmith/flagsmith-frontend:pr-7828 Finished ✅ Results
ghcr.io/flagsmith/flagsmith-e2e:pr-7828 Finished ✅ Skipped
ghcr.io/flagsmith/flagsmith-api:pr-7828 Finished ✅ Results
ghcr.io/flagsmith/flagsmith:pr-7828 Finished ✅ Results
ghcr.io/flagsmith/flagsmith-private-cloud:pr-7828 Finished ✅ Results

@khvn26 khvn26 changed the title feat(segments): Refresh membership counts on segment edit feat(Segment membership): Refresh membership counts on segment edit Jun 18, 2026
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Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 98.58%. Comparing base (c4670cb) to head (5836e78).
⚠️ Report is 5 commits behind head on main.

Additional details and impacted files
@@           Coverage Diff           @@
##             main    #7828   +/-   ##
=======================================
  Coverage   98.58%   98.58%           
=======================================
  Files        1465     1466    +1     
  Lines       56889    56974   +85     
=======================================
+ Hits        56082    56167   +85     
  Misses        807      807           

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Playwright Test Results (oss - depot-ubuntu-latest-16)

passed  1 passed

Details

stats  1 test across 1 suite
duration  42.1 seconds
commit  5836e78
info  🔄 Run: #17653 (attempt 1)

Playwright Test Results (oss - depot-ubuntu-latest-arm-16)

passed  1 passed

Details

stats  1 test across 1 suite
duration  44.2 seconds
commit  5836e78
info  🔄 Run: #17653 (attempt 1)

Playwright Test Results (private-cloud - depot-ubuntu-latest-arm-16)

passed  3 passed

Details

stats  3 tests across 3 suites
duration  1 minute, 2 seconds
commit  5836e78
info  🔄 Run: #17653 (attempt 1)

Playwright Test Results (private-cloud - depot-ubuntu-latest-16)

passed  3 passed

Details

stats  3 tests across 3 suites
duration  36.5 seconds
commit  5836e78
info  🔄 Run: #17653 (attempt 1)

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Visual Regression

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@emyller emyller left a comment

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I'd love to see suggested improvements to tests, though none are blocking if you need to proceed.

Comment on lines +21 to +34
url = reverse(
"api-v1:projects:project-segments-detail",
args=[project, segment],
)
data = {
"name": "renamed",
"project": project,
"rules": [{"type": "ALL", "rules": [], "conditions": []}],
}

# When
response = admin_client.put(
url, data=json.dumps(data), content_type="application/json"
)

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Suggested change
url = reverse(
"api-v1:projects:project-segments-detail",
args=[project, segment],
)
data = {
"name": "renamed",
"project": project,
"rules": [{"type": "ALL", "rules": [], "conditions": []}],
}
# When
response = admin_client.put(
url, data=json.dumps(data), content_type="application/json"
)
# When
response = admin_client.put(
f"/api/v1/projects/{project}/segments/{segment}/",
data={
"name": "renamed",
"project": project,
"rules": [{"type": "ALL", "rules": [], "conditions": []}],
},
format="json",
)

Similar improvements can be made throughout this patch.

)

# When
# the import (which bulk-creates segments) completes

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Suggested change
# the import (which bulk-creates segments) completes

process_import_request(import_request)

# Then
# it triggers a single membership refresh for the imported project

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Suggested change
# it triggers a single membership refresh for the imported project

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Not sure if LLM-generated, but I don't see value in the extra GWT lore throughout this patch.

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Segment-edit-triggered membership count refresh

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