TimelineEvent : update sender data when loading room members and prune event (+ remove RoomSummaryMapper param)

matrix-sdk-android-rx/src/main/java/im/vector/matrix/rx/RxRoom.kt

@@ -25,8 +25,8 @@ import io.reactivex.schedulers.Schedulers
 
 class RxRoom(private val room: Room) {
 
-    fun liveRoomSummary(fetchLastEvent: Boolean): Observable<RoomSummary> {
-        return room.liveRoomSummary(fetchLastEvent).asObservable().observeOn(Schedulers.computation())
+    fun liveRoomSummary(): Observable<RoomSummary> {
+        return room.liveRoomSummary().asObservable().observeOn(Schedulers.computation())
     }
 
     fun liveRoomMemberIds(): Observable<List<String>> {

matrix-sdk-android-rx/src/main/java/im/vector/matrix/rx/RxSession.kt

@@ -26,8 +26,8 @@ import io.reactivex.schedulers.Schedulers
 
 class RxSession(private val session: Session) {
 
-    fun liveRoomSummaries(fetchLastEvents: Boolean): Observable<List<RoomSummary>> {
-        return session.liveRoomSummaries(fetchLastEvents).asObservable().observeOn(Schedulers.computation())
+    fun liveRoomSummaries(): Observable<List<RoomSummary>> {
+        return session.liveRoomSummaries().asObservable().observeOn(Schedulers.computation())
     }
 
     fun liveGroupSummaries(): Observable<List<GroupSummary>> {

matrix-sdk-android/src/main/java/im/vector/matrix/android/api/session/room/Room.kt

@@ -47,8 +47,8 @@ interface Room :
      * A live [RoomSummary] associated with the room
      * You can observe this summary to get dynamic data from this room.
      */
-    fun liveRoomSummary(fetchLastEvent: Boolean = false): LiveData<RoomSummary>
+    fun liveRoomSummary(): LiveData<RoomSummary>
 
-    fun roomSummary(fetchLastEvent: Boolean = false): RoomSummary?
+    fun roomSummary(): RoomSummary?
 
 }

matrix-sdk-android/src/main/java/im/vector/matrix/android/api/session/room/RoomService.kt

@@ -43,6 +43,6 @@ interface RoomService {
      * Get a live list of room summaries. This list is refreshed as soon as the data changes.
      * @return the [LiveData] of [RoomSummary]
      */
-    fun liveRoomSummaries(fetchLastEvents: Boolean = true): LiveData<List<RoomSummary>>
+    fun liveRoomSummaries(): LiveData<List<RoomSummary>>
 
 }

matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/database/RealmLiveData.kt

@@ -31,8 +31,7 @@ class RealmLiveData<T : RealmModel>(private val realmConfiguration: RealmConfigu
 
     override fun onActive() {
         val realm = Realm.getInstance(realmConfiguration)
-        val results = query.invoke(realm).findAll()
-        value = results
+        val results = query.invoke(realm).findAllAsync()
         results.addChangeListener(listener)
         this.realm = realm
         this.results = results

matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/database/helper/ChunkEntityHelper.kt

@@ -18,28 +18,17 @@ package im.vector.matrix.android.internal.database.helper
 
 import im.vector.matrix.android.api.session.events.model.Event
 import im.vector.matrix.android.api.session.events.model.EventType
-import im.vector.matrix.android.api.session.events.model.toModel
-import im.vector.matrix.android.api.session.room.model.RoomMember
 import im.vector.matrix.android.api.session.room.send.SendState
-import im.vector.matrix.android.internal.database.mapper.ContentMapper
 import im.vector.matrix.android.internal.database.mapper.asDomain
 import im.vector.matrix.android.internal.database.mapper.toEntity
 import im.vector.matrix.android.internal.database.model.ChunkEntity
 import im.vector.matrix.android.internal.database.model.EventAnnotationsSummaryEntity
-import im.vector.matrix.android.internal.database.model.EventEntity
-import im.vector.matrix.android.internal.database.model.EventEntityFields
-import im.vector.matrix.android.internal.database.model.RoomEntity
 import im.vector.matrix.android.internal.database.model.TimelineEventEntity
 import im.vector.matrix.android.internal.database.model.TimelineEventEntityFields
 import im.vector.matrix.android.internal.database.query.find
-import im.vector.matrix.android.internal.database.query.next
-import im.vector.matrix.android.internal.database.query.prev
 import im.vector.matrix.android.internal.database.query.where
 import im.vector.matrix.android.internal.extensions.assertIsManaged
-import im.vector.matrix.android.internal.session.room.membership.RoomMembers
 import im.vector.matrix.android.internal.session.room.timeline.PaginationDirection
-import io.realm.RealmList
-import io.realm.RealmQuery
 import io.realm.Sort
 
 // By default if a chunk is empty we consider it unlinked
@@ -76,10 +65,14 @@ internal fun ChunkEntity.merge(roomId: String,
         eventsToMerge = chunkToMerge.timelineEvents.sort(TimelineEventEntityFields.ROOT.DISPLAY_INDEX, Sort.DESCENDING)
     }
     val events = eventsToMerge.mapNotNull { it.root?.asDomain() }
+    val eventIds = ArrayList<String>()
     events.forEach { event ->
         add(roomId, event, direction, isUnlinked = isUnlinked)
+        if (event.eventId != null) {
+            eventIds.add(event.eventId)
         }
-    updateSenderDataFor(roomId, isUnlinked, events)
+    }
+    updateSenderDataFor(eventIds)
 }
 
 internal fun ChunkEntity.addAll(roomId: String,
@@ -89,30 +82,20 @@ internal fun ChunkEntity.addAll(roomId: String,
         // Set to true for Event retrieved from a Permalink (i.e. not linked to live Chunk)
                                 isUnlinked: Boolean = false) {
     assertIsManaged()
+    val eventIds = ArrayList<String>()
     events.forEach { event ->
         add(roomId, event, direction, stateIndexOffset, isUnlinked)
+        if (event.eventId != null) {
+            eventIds.add(event.eventId)
         }
-    updateSenderDataFor(roomId, isUnlinked, events)
+    }
+    updateSenderDataFor(eventIds)
 }
 
-private fun ChunkEntity.updateSenderDataFor(roomId: String, isUnlinked: Boolean, events: List<Event>) {
-    for (event in events) {
-        val eventId = event.eventId ?: continue
+internal fun ChunkEntity.updateSenderDataFor(eventIds: List<String>) {
+    for (eventId in eventIds) {
         val timelineEventEntity = timelineEvents.find(eventId) ?: continue
-        val roomEntity = RoomEntity.where(realm, roomId = roomId).findFirst() ?: continue
-        val stateIndex = timelineEventEntity.root?.stateIndex ?: continue
-        val senderId = timelineEventEntity.root?.sender ?: continue
-
-        val senderRoomMemberContent = when {
-            stateIndex <= 0 -> timelineEvents.build(senderId, isUnlinked).next(from = stateIndex)?.root?.prevContent
-            else            -> timelineEvents.build(senderId, isUnlinked).prev(since = stateIndex)?.root?.content
-        }
-        val fallbackContent = senderRoomMemberContent
-                              ?: roomEntity.untimelinedStateEvents.build(senderId).prev(since = stateIndex)?.content
-        val senderRoomMember: RoomMember? = ContentMapper.map(fallbackContent).toModel()
-        timelineEventEntity.senderAvatar = senderRoomMember?.avatarUrl
-        timelineEventEntity.senderName = senderRoomMember?.displayName
-        timelineEventEntity.isUniqueDisplayName = RoomMembers(realm, roomId).isUniqueDisplayName(senderRoomMember?.displayName)
+        timelineEventEntity.updateSenderData()
     }
 }
 
@@ -161,19 +144,6 @@ private fun ChunkEntity.add(roomId: String,
     timelineEvents.add(position, eventEntity)
 }
 
-private fun RealmList<TimelineEventEntity>.build(sender: String, isUnlinked: Boolean): RealmQuery<TimelineEventEntity> {
-    return where()
-            .equalTo(TimelineEventEntityFields.ROOT.STATE_KEY, sender)
-            .equalTo(TimelineEventEntityFields.ROOT.TYPE, EventType.STATE_ROOM_MEMBER)
-            .equalTo(TimelineEventEntityFields.ROOT.IS_UNLINKED, isUnlinked)
-}
-
-private fun RealmList<EventEntity>.build(sender: String): RealmQuery<EventEntity> {
-    return where()
-            .equalTo(EventEntityFields.STATE_KEY, sender)
-            .equalTo(EventEntityFields.TYPE, EventType.STATE_ROOM_MEMBER)
-}
-
 internal fun ChunkEntity.lastDisplayIndex(direction: PaginationDirection, defaultValue: Int = 0): Int {
     return when (direction) {
                PaginationDirection.FORWARDS  -> forwardsDisplayIndex

matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/database/helper/RoomEntityHelper.kt

@@ -72,6 +72,7 @@ internal fun RoomEntity.addSendingEvent(event: Event) {
         it.senderName = myUser?.displayName
         it.senderAvatar = myUser?.avatarUrl
         it.isUniqueDisplayName = roomMembers.isUniqueDisplayName(myUser?.displayName)
+        it.senderMembershipEvent = roomMembers.queryRoomMemberEvent(senderId).findFirst()
     }
     sendingTimelineEvents.add(0, timelineEventEntity)
 }

matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/database/helper/TimelineEventEntityHelper.kt

@@ -0,0 +1,78 @@
+/*
+ * Copyright 2019 New Vector Ltd
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package im.vector.matrix.android.internal.database.helper
+
+import im.vector.matrix.android.api.session.events.model.EventType
+import im.vector.matrix.android.api.session.events.model.toModel
+import im.vector.matrix.android.api.session.room.model.RoomMember
+import im.vector.matrix.android.internal.database.mapper.ContentMapper
+import im.vector.matrix.android.internal.database.model.EventEntity
+import im.vector.matrix.android.internal.database.model.EventEntityFields
+import im.vector.matrix.android.internal.database.model.RoomEntity
+import im.vector.matrix.android.internal.database.model.TimelineEventEntity
+import im.vector.matrix.android.internal.database.model.TimelineEventEntityFields
+import im.vector.matrix.android.internal.database.query.next
+import im.vector.matrix.android.internal.database.query.prev
+import im.vector.matrix.android.internal.database.query.where
+import im.vector.matrix.android.internal.extensions.assertIsManaged
+import im.vector.matrix.android.internal.session.room.membership.RoomMembers
+import io.realm.RealmList
+import io.realm.RealmQuery
+
+internal fun TimelineEventEntity.updateSenderData() {
+    assertIsManaged()
+    val roomEntity = RoomEntity.where(realm, roomId = roomId).findFirst() ?: return
+    val stateIndex = root?.stateIndex ?: return
+    val senderId = root?.sender ?: return
+    val chunkEntity = chunk?.firstOrNull() ?: return
+    val isUnlinked = chunkEntity.isUnlinked()
+    var senderMembershipEvent: EventEntity?
+    var senderRoomMemberContent: String?
+    when {
+        stateIndex <= 0 -> {
+            senderMembershipEvent = chunkEntity.timelineEvents.buildQuery(senderId, isUnlinked).next(from = stateIndex)?.root
+            senderRoomMemberContent = senderMembershipEvent?.prevContent
+        }
+        else            -> {
+            senderMembershipEvent = chunkEntity.timelineEvents.buildQuery(senderId, isUnlinked).prev(since = stateIndex)?.root
+            senderRoomMemberContent = senderMembershipEvent?.content
+        }
+    }
+
+    // We fallback to untimelinedStateEvents if we can't find membership events in timeline
+    if (senderMembershipEvent == null) {
+        senderMembershipEvent = roomEntity.untimelinedStateEvents
+                .where()
+                .equalTo(EventEntityFields.STATE_KEY, senderId)
+                .equalTo(EventEntityFields.TYPE, EventType.STATE_ROOM_MEMBER)
+                .prev(since = stateIndex)
+        senderRoomMemberContent = senderMembershipEvent?.content
+    }
+    val senderRoomMember: RoomMember? = ContentMapper.map(senderRoomMemberContent).toModel()
+    this.senderAvatar = senderRoomMember?.avatarUrl
+    this.senderName = senderRoomMember?.displayName
+    this.isUniqueDisplayName = RoomMembers(realm, roomId).isUniqueDisplayName(senderRoomMember?.displayName)
+    this.senderMembershipEvent = senderMembershipEvent
+}
+
+private fun RealmList<TimelineEventEntity>.buildQuery(sender: String, isUnlinked: Boolean): RealmQuery<TimelineEventEntity> {
+    return where()
+            .equalTo(TimelineEventEntityFields.ROOT.STATE_KEY, sender)
+            .equalTo(TimelineEventEntityFields.ROOT.TYPE, EventType.STATE_ROOM_MEMBER)
+            .equalTo(TimelineEventEntityFields.ROOT.IS_UNLINKED, isUnlinked)
+}
+

matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/database/mapper/RoomSummaryMapper.kt

@@ -29,7 +29,7 @@ internal class RoomSummaryMapper @Inject constructor(
         val cryptoService: CryptoService
 ) {
 
-    fun map(roomSummaryEntity: RoomSummaryEntity, getLatestEvent: Boolean = false): RoomSummary {
+    fun map(roomSummaryEntity: RoomSummaryEntity): RoomSummary {
         val tags = roomSummaryEntity.tags.map {
             RoomTag(it.tagName, it.tagOrder)
         }

matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/database/model/TimelineEventEntity.kt

@@ -35,7 +35,8 @@ internal open class TimelineEventEntity(@PrimaryKey var localId: String = UUID.r
                                         var annotations: EventAnnotationsSummaryEntity? = null,
                                         var senderName: String? = null,
                                         var isUniqueDisplayName: Boolean = false,
-                                        var senderAvatar: String? = null
+                                        var senderAvatar: String? = null,
+                                        var senderMembershipEvent: EventEntity? = null
 ) : RealmObject() {
 
     @LinkingObjects("timelineEvents")

matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/database/query/TimelineEventEntityQueries.kt

@@ -54,6 +54,12 @@ internal fun TimelineEventEntity.Companion.where(realm: Realm,
     }
 }
 
+internal fun TimelineEventEntity.Companion.findWithSenderMembershipEvent(realm: Realm, senderMembershipEventId: String): List<TimelineEventEntity> {
+    return realm.where<TimelineEventEntity>()
+            .equalTo(TimelineEventEntityFields.SENDER_MEMBERSHIP_EVENT.EVENT_ID, senderMembershipEventId)
+            .findAll()
+}
+
 
 internal fun TimelineEventEntity.Companion.latestEvent(realm: Realm,
                                                        roomId: String,

matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/session/room/DefaultRoom.kt

@@ -33,8 +33,6 @@ import im.vector.matrix.android.internal.database.mapper.RoomSummaryMapper
 import im.vector.matrix.android.internal.database.model.RoomSummaryEntity
 import im.vector.matrix.android.internal.database.model.RoomSummaryEntityFields
 import im.vector.matrix.android.internal.database.query.where
-import im.vector.matrix.android.internal.util.fetchCopied
-import im.vector.matrix.android.internal.util.fetchCopyMap
 import javax.inject.Inject
 
 internal class DefaultRoom @Inject constructor(override val roomId: String,
@@ -55,12 +53,12 @@ internal class DefaultRoom @Inject constructor(override val roomId: String,
     RelationService by relationService,
     MembershipService by roomMembersService {
 
-    override fun liveRoomSummary(fetchLastEvent: Boolean): LiveData<RoomSummary> {
+    override fun liveRoomSummary(): LiveData<RoomSummary> {
         val liveRealmData = RealmLiveData<RoomSummaryEntity>(monarchy.realmConfiguration) { realm ->
             RoomSummaryEntity.where(realm, roomId).isNotEmpty(RoomSummaryEntityFields.DISPLAY_NAME)
         }
         return Transformations.map(liveRealmData) { results ->
-            val roomSummaries = results.map { roomSummaryMapper.map(it, fetchLastEvent) }
+            val roomSummaries = results.map { roomSummaryMapper.map(it) }
 
             if (roomSummaries.isEmpty()) {
                 // Create a dummy RoomSummary to avoid Crash during Sign Out or clear cache
@@ -71,10 +69,10 @@ internal class DefaultRoom @Inject constructor(override val roomId: String,
         }
     }
 
-    override fun roomSummary(fetchLastEvent: Boolean): RoomSummary? {
+    override fun roomSummary(): RoomSummary? {
         return monarchy.fetchAllMappedSync(
                 { realm -> RoomSummaryEntity.where(realm, roomId).isNotEmpty(RoomSummaryEntityFields.DISPLAY_NAME) },
-                { roomSummaryMapper.map(it, fetchLastEvent) }
+                { roomSummaryMapper.map(it) }
         ).firstOrNull()
     }
 

matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/session/room/DefaultRoomService.kt

@@ -52,10 +52,10 @@ internal class DefaultRoomService @Inject constructor(private val monarchy: Mona
         return roomFactory.create(roomId)
     }
 
-    override fun liveRoomSummaries(fetchLastEvents: Boolean): LiveData<List<RoomSummary>> {
+    override fun liveRoomSummaries(): LiveData<List<RoomSummary>> {
         return monarchy.findAllMappedWithChanges(
                 { realm -> RoomSummaryEntity.where(realm).isNotEmpty(RoomSummaryEntityFields.DISPLAY_NAME) },
-                { roomSummaryMapper.map(it, fetchLastEvents) }
+                { roomSummaryMapper.map(it) }
         )
     }
 }

matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/session/room/membership/LoadRoomMembersTask.kt

@@ -20,15 +20,16 @@ import arrow.core.Try
 import com.zhuinden.monarchy.Monarchy
 import im.vector.matrix.android.api.session.room.model.Membership
 import im.vector.matrix.android.internal.database.helper.addStateEvents
+import im.vector.matrix.android.internal.database.helper.updateSenderData
 import im.vector.matrix.android.internal.database.model.RoomEntity
 import im.vector.matrix.android.internal.database.query.where
 import im.vector.matrix.android.internal.network.executeRequest
-import im.vector.matrix.android.internal.session.SessionScope
 import im.vector.matrix.android.internal.session.room.RoomAPI
 import im.vector.matrix.android.internal.session.room.RoomSummaryUpdater
 import im.vector.matrix.android.internal.session.sync.SyncTokenStore
 import im.vector.matrix.android.internal.task.Task
 import im.vector.matrix.android.internal.util.tryTransactionSync
+import io.realm.Realm
 import io.realm.kotlin.createObject
 import javax.inject.Inject
 
@@ -68,20 +69,20 @@ internal class DefaultLoadRoomMembersTask @Inject constructor(private val roomAP
 
                     val roomMembers = RoomMembers(realm, roomId).getLoaded()
                     val eventsToInsert = response.roomMemberEvents.filter { !roomMembers.containsKey(it.stateKey) }
-
                     roomEntity.addStateEvents(eventsToInsert)
+                    roomEntity.chunks.flatMap { it.timelineEvents }.forEach {
+                        it.updateSenderData()
+                    }
                     roomEntity.areAllMembersLoaded = true
-
                     roomSummaryUpdater.update(realm, roomId)
                 }
                 .map { response }
     }
 
     private fun areAllMembersAlreadyLoaded(roomId: String): Boolean {
-        return monarchy
-                       .fetchAllCopiedSync { RoomEntity.where(it, roomId) }
-                       .firstOrNull()
-                       ?.areAllMembersLoaded ?: false
+        return Realm.getInstance(monarchy.realmConfiguration).use {
+            RoomEntity.where(it, roomId).findFirst()?.areAllMembersLoaded ?: false
+        }
     }
 
 }

matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/session/room/membership/RoomMembers.kt

@@ -29,6 +29,10 @@ import io.realm.Realm
 import io.realm.RealmQuery
 import io.realm.Sort
 
+/**
+ * This class is an helper around STATE_ROOM_MEMBER events.
+ * It allows to get the live membership of a user.
+ */
 internal class RoomMembers(private val realm: Realm,
                            private val roomId: String
 ) {

matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/session/room/prune/PruneEventTask.kt

@@ -21,12 +21,14 @@ import im.vector.matrix.android.api.session.events.model.Event
 import im.vector.matrix.android.api.session.events.model.EventType
 import im.vector.matrix.android.api.session.events.model.UnsignedData
 import im.vector.matrix.android.api.session.room.send.SendState
+import im.vector.matrix.android.internal.database.helper.updateSenderData
 import im.vector.matrix.android.internal.database.mapper.ContentMapper
 import im.vector.matrix.android.internal.database.mapper.EventMapper
 import im.vector.matrix.android.internal.database.model.EventEntity
+import im.vector.matrix.android.internal.database.model.TimelineEventEntity
+import im.vector.matrix.android.internal.database.query.findWithSenderMembershipEvent
 import im.vector.matrix.android.internal.database.query.where
 import im.vector.matrix.android.internal.di.MoshiProvider
-import im.vector.matrix.android.internal.session.SessionScope
 import im.vector.matrix.android.internal.task.Task
 import im.vector.matrix.android.internal.util.tryTransactionSync
 import io.realm.Realm
@@ -94,6 +96,12 @@ internal class DefaultPruneEventTask @Inject constructor(private val monarchy: M
 //                }
             }
         }
+        if (eventToPrune.type == EventType.STATE_ROOM_MEMBER) {
+            val timelineEventsToUpdate = TimelineEventEntity.findWithSenderMembershipEvent(realm, eventToPrune.eventId)
+            for (timelineEvent in timelineEventsToUpdate) {
+                timelineEvent.updateSenderData()
+            }
+        }
     }
 
 

matrix-sdk-android/src/test/java/im/vector/matrix/android/api/pushrules/PushrulesConditionTest.kt

@@ -179,7 +179,7 @@ class PushrulesConditionTest {
             }
         }
 
-        override fun liveRoomSummaries(fetchLastEvents: Boolean): LiveData<List<RoomSummary>> {
+        override fun liveRoomSummaries(): LiveData<List<RoomSummary>> {
             return MutableLiveData()
         }
     }
@@ -194,11 +194,11 @@ class PushrulesConditionTest {
             return _numberOfJoinedMembers
         }
 
-        override fun liveRoomSummary(fetchLastEvent: Boolean): LiveData<RoomSummary> {
+        override fun liveRoomSummary(): LiveData<RoomSummary> {
             TODO("not implemented") //To change body of created functions use File | Settings | File Templates.
         }
 
-        override fun roomSummary(fetchLastEvent: Boolean): RoomSummary? {
+        override fun roomSummary(): RoomSummary? {
             TODO("not implemented") //To change body of created functions use File | Settings | File Templates.
         }
 

vector/src/main/java/im/vector/riotx/features/home/HomeActivityViewModel.kt

@@ -73,7 +73,7 @@ class HomeActivityViewModel @AssistedInject constructor(@Assisted initialState:
     private fun observeRoomAndGroup() {
         Observable
                 .combineLatest<List<RoomSummary>, Option<GroupSummary>, List<RoomSummary>>(
-                        session.rx().liveRoomSummaries(fetchLastEvents = true).throttleLast(300, TimeUnit.MILLISECONDS),
+                        session.rx().liveRoomSummaries().throttleLast(300, TimeUnit.MILLISECONDS),
                         selectedGroupStore.observe(),
                         BiFunction { rooms, selectedGroupOption ->
                             val selectedGroup = selectedGroupOption.orNull()

vector/src/main/java/im/vector/riotx/features/home/room/detail/RoomDetailViewModel.kt

@@ -500,17 +500,7 @@ class RoomDetailViewModel @AssistedInject constructor(@Assisted initialState: Ro
     }
 
     private fun observeRoomSummary() {
-        room.rx().liveRoomSummary(false)
-                .observeOn(AndroidSchedulers.mainThread())
-                .flatMap {
-                    if (it.membership != Membership.INVITE || it.latestEvent != null) {
-                        // Not an invitation, or already fetching last event
-                        Observable.just(it)
-                    } else {
-                        // We need the last event
-                        room.rx().liveRoomSummary(true)
-                    }
-                }
+        room.rx().liveRoomSummary()
                 .execute { async ->
                     copy(
                             asyncRoomSummary = async,

vector/src/main/java/im/vector/riotx/features/roomdirectory/RoomDirectoryViewModel.kt

@@ -86,7 +86,7 @@ class RoomDirectoryViewModel @AssistedInject constructor(@Assisted initialState:
     private fun observeJoinedRooms() {
         session
                 .rx()
-                .liveRoomSummaries(fetchLastEvents = false)
+                .liveRoomSummaries()
                 .subscribe { list ->
                     val joinedRoomIds = list
                             // Keep only joined room

vector/src/main/java/im/vector/riotx/features/roomdirectory/roompreview/RoomPreviewViewModel.kt

@@ -54,7 +54,7 @@ class RoomPreviewViewModel @AssistedInject constructor(@Assisted initialState: R
     private fun observeJoinedRooms() {
         session
                 .rx()
-                .liveRoomSummaries(fetchLastEvents = false)
+                .liveRoomSummaries()
                 .subscribe { list ->
                     withState { state ->
                         val isRoomJoined = list