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…ho are not watching Parse notification.channel_partial_updated into NotificationChannelPartialUpdatedEvent. The event carries a slim channel, so it is merged into the local channel (state, offline storage and grouped unread counts) instead of replacing it. Grouped lists remove a channel that no longer matches its tab and watch a channel that now matches.
…loaded channels by group only v1 WebSocket connections receive the custom fields at the top level of the channel, so the slim channel is parsed like a full channel. A channel with no local copy is matched on its group only, since its last activity is unknown, and the list applies the cutoff after the watch. Grouped lists skip a watched channel that is hidden.
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| Check name | Status | Explanation | Resolution |
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| Docstring Coverage |  |
Docstring coverage is 28.17% which is insufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff. Analyzed 71 functions across 26 files. (2 skipped:… | Write docstrings for the functions missing them to satisfy the coverage threshold. |
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Check name Status Explanation Linked Issues check Check skipped because no linked issues were found for this pull request. Out of Scope Changes check Check skipped because no linked issues were found for this pull request. Title check The title clearly summarizes the main change: updating grouped channel lists when unwatched channels receive partial updates. Description check The description includes the goal, implementation details, testing steps, issue reference, and validation results. The template checklist is omitted, but the substantive requirements are covered.
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Docstring coverage is 28.17% which is insufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff. Analyzed 71 functions across 26 files. (2 skipped: 2 unsupported.)
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Write docstrings for the functions missing them to satisfy the coverage threshold.
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A rabbit reads the channel stream,
New fields arrive, then join the team.
I nibble carrots, hop, and cheer,
The partial updates now appear.
Grouped lists sort what belongs in here,
And hidden channels disappear.
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Actionable comments posted: 3
- 🪄 Fix comments: Fix CodeRabbit comments on this PR
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Inline comments:
Review comments at
@stream-chat-android-client/src/main/java/io/getstream/chat/android/client/api2/mapping/DomainMapping.kt:
- Line 212: Update the partial-channel mapper in DomainMapping so it applies the
configured channelTransformer to incoming channel fields without treating the
incomplete event channel as a complete channel; preserve omitted fields and
ensure transformed values are used by both live-state and offline merges.
Review comments at
@stream-chat-android-state/src/main/java/io/getstream/chat/android/state/event/handler/grouped/internal/GroupedUnreadChannelsUpdater.kt:
- Line 118: Update the `applyDelta` deduplication used by
`GroupedUnreadChannelsUpdater` to track the group reached for each processed
channel, rather than suppressing every later update for the same cid. Ignore
duplicate events for the same group, but apply subsequent distinct group changes
so a channel moving from A through B to C leaves its unread count assigned to C.
Review comments at
@stream-chat-android-state/src/main/java/io/getstream/chat/android/state/plugin/logic/querychannels/internal/QueryChannelsLogic.kt:
- Line 301: In watchAndAddChannel, re-evaluate result.value against the resolver
and grouped query filter before calling addChannel, rather than relying only on
its hidden status; add the watched channel only when it still belongs to that
grouped query.
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📒 Files selected for processing: 28
stream-chat-android-client-test/src/main/java/io/getstream/chat/android/client/test/Mother.ktstream-chat-android-client/api/stream-chat-android-client.apistream-chat-android-client/src/main/java/io/getstream/chat/android/client/api2/mapping/DomainMapping.ktstream-chat-android-client/src/main/java/io/getstream/chat/android/client/api2/mapping/EventMapping.ktstream-chat-android-client/src/main/java/io/getstream/chat/android/client/api2/model/dto/ChannelDtos.ktstream-chat-android-client/src/main/java/io/getstream/chat/android/client/api2/model/dto/EventDtos.ktstream-chat-android-client/src/main/java/io/getstream/chat/android/client/channel/ChannelClient.ktstream-chat-android-client/src/main/java/io/getstream/chat/android/client/events/ChatEvent.ktstream-chat-android-client/src/main/java/io/getstream/chat/android/client/parser2/MoshiChatParser.ktstream-chat-android-client/src/main/java/io/getstream/chat/android/client/parser2/adapters/DownstreamChannelDtoAdapter.ktstream-chat-android-client/src/main/java/io/getstream/chat/android/client/parser2/adapters/EventAdapter.ktstream-chat-android-client/src/test/java/io/getstream/chat/android/client/EventChatJsonProvider.ktstream-chat-android-client/src/test/java/io/getstream/chat/android/client/api2/mapping/EventMappingTestArguments.ktstream-chat-android-client/src/test/java/io/getstream/chat/android/client/parser/EventArguments.ktstream-chat-android-core/api/stream-chat-android-core.apistream-chat-android-core/src/main/java/io/getstream/chat/android/models/EventType.ktstream-chat-android-state/src/main/java/io/getstream/chat/android/state/event/handler/grouped/internal/GroupAwareChatEventHandler.ktstream-chat-android-state/src/main/java/io/getstream/chat/android/state/event/handler/grouped/internal/GroupedUnreadChannelsUpdater.ktstream-chat-android-state/src/main/java/io/getstream/chat/android/state/event/handler/internal/EventHandlerSequential.ktstream-chat-android-state/src/main/java/io/getstream/chat/android/state/plugin/logic/channel/internal/ChannelEventHandler.ktstream-chat-android-state/src/main/java/io/getstream/chat/android/state/plugin/logic/querychannels/internal/QueryChannelsLogic.ktstream-chat-android-state/src/main/java/io/getstream/chat/android/state/utils/internal/ChannelPartialUpdate.ktstream-chat-android-state/src/test/java/io/getstream/chat/android/state/event/handler/grouped/internal/GroupAwareChatEventHandlerTest.ktstream-chat-android-state/src/test/java/io/getstream/chat/android/state/event/handler/grouped/internal/GroupedUnreadChannelsUpdaterTest.ktstream-chat-android-state/src/test/java/io/getstream/chat/android/state/event/handler/internal/EventHandlerSequentialTest.ktstream-chat-android-state/src/test/java/io/getstream/chat/android/state/plugin/logic/channel/internal/ChannelEventHandlerTest.ktstream-chat-android-state/src/test/java/io/getstream/chat/android/state/plugin/logic/querychannels/internal/QueryChannelsLogicGroupedTest.ktstream-chat-android-state/src/test/java/io/getstream/chat/android/state/utils/internal/ChannelPartialUpdateTest.kt
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The fields the event carries replace local values that were transformed when stored, so they are transformed too.
andremion
marked this pull request as ready for review
October 15, 2026 15:51
A cutoff like -7d or now-0d is rejected by the backend. It no longer becomes a local cutoff in the future or at the current time, so the server decides.
…aded channels A partial update on an old channel with no local copy no longer makes every member client watch it and add it below the loaded pages. Grouped queries watch it when the group has no more pages, or when its known sort key places it at or above the last loaded channel.
…lsLogic Tests that mock QueryChannelsLogic drop its coverage for later tests in the same JVM. The check is a pure function of the query state, so it now lives in a top-level function, and the tests also cover a partial channel without name or image and missing channel data.
andremion
enabled auto-merge (squash)
October 16, 2026 09:35
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andremion
deleted the
andrerego/and-1658-handle-notificationchannel_partial_updated-in-grouped
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October 16, 2026 09:51
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Goal
Closes AND-1658
A partial channel update (for example
grouportouched_at) sendschannel.updatedonly to connections that watch the channel. Grouped lists went stale for the other channels until the next grouped query. The backend now sendsnotification.channel_partial_updatedto members who are not watching, and this handles it.Implementation
NotificationChannelPartialUpdatedEventandEventType.NOTIFICATION_CHANNEL_PARTIAL_UPDATED.channel.mergePartialUpdateapplies only the fields the event carries. Members, reads, config andlastMessageAtstay local. The custom data replaces the custom part ofextraData, so a removedgroupis removed locally too.GroupAwareChatEventHandlerremoves a listed channel that no longer matches its tab, and watches a channel that now matches.last_message_at, so a channel with a recent message but an oldtouched_atwaits for the next page or query.ChannelTransformeris applied to the event's channel, so the fields it carries replace local values that were transformed too.-7d,now-0d) no longer become a local cutoff, as ondevelop(Support per-group filters and filtered unread badges in grouped lists #6834).Testing
Needs an app with grouped tabs, one with a
query_timestampfilter.groupof a channel that is loaded in one tab. It moves to the other tab without a new grouped query.groupof a channel that is not loaded (beyond the first page) to a tab you have open. It is watched and appears in that tab.groupof a loaded channel. It leaves its tab.groupfrom the server. It does not come back.Validation that ran:
./gradlew spotlessApply detekt apiDump, thenspotlessCheck apiCheck testDebugUnitTest(all modules), plus mutation checks on the merge in routing, the group-only match and the hidden check.Summary by CodeRabbit
notification.channel_partial_updatedevents, including updates to channel details and grouped unread counts.