refactor(members): use a single members list for public community chats (#16301)

Fixes #16288

Introduces a new instance of the users module, but managed by the section module.
This user module is managing the "public" community members list. Meaning that everytime we have a public channel in a community, we use that module instead.

The channel's user module is empty for public channels to reduce the amount of processing and memory used.

If the channel becomes private, we update the member list and populate it.

src/app/modules/main/chat_section/chat_content/chat_details.nim

@@ -354,7 +354,7 @@ QtObject:
     self.missingEncryptionKeyChanged()
 
   proc requiresPermissionsChanged(self: ChatDetails) {.signal.}
-  proc getRequiresPermissions(self: ChatDetails): bool {.slot.} =
+  proc getRequiresPermissions*(self: ChatDetails): bool {.slot.} =
     return self.requiresPermissions
   QtProperty[bool] requiresPermissions:
     read = getRequiresPermissions

src/app/modules/main/chat_section/chat_content/module.nim

@@ -401,7 +401,11 @@ method onCommunityChannelEdited*(self: Module, chatDto: ChatDto) =
   self.view.chatDetails.setName(chatDto.name)
   self.view.chatDetails.setIcon(chatDto.icon)
   self.view.chatDetails.setMissingEncryptionKey(chatDto.missingEncryptionKey)
+
+  if self.view.chatDetails.getRequiresPermissions() != chatDto.tokenGated:
+    # The channel permission status changed. Update the member list
     self.view.chatDetails.setRequiresPermissions(chatDto.tokenGated)
+    self.usersModule.updateMembersList()
 
   self.messagesModule.updateChatFetchMoreMessages()
   self.messagesModule.updateChatIdentifier()

src/app/modules/main/chat_section/chat_content/users/controller.nim

@@ -21,9 +21,6 @@ type
     communityService: community_service.Service
     messageService: message_service.Service
 
-# Forward declaration
-proc getChat*(self: Controller): ChatDto
-
 proc newController*(
   delegate: io_interface.AccessInterface, events: EventEmitter, sectionId: string, chatId: string,
   belongsToCommunity: bool, isUsersListAvailable: bool, contactService: contact_service.Service,
@@ -63,7 +60,7 @@ proc init*(self: Controller) =
     self.delegate.loggedInUserImageChanged()
 
   # Events only for the user list, so not needed in one to one chats
-  if(self.isUsersListAvailable):
+  if self.isUsersListAvailable:
     self.events.on(SIGNAL_CONTACT_UNTRUSTWORTHY) do(e: Args):
       var args = TrustArgs(e)
       self.delegate.contactUpdated(args.publicKey)
@@ -118,19 +115,11 @@ proc belongsToCommunity*(self: Controller): bool =
 proc getMyCommunity*(self: Controller): CommunityDto =
   return self.communityService.getCommunityById(self.sectionId)
 
-proc getChat*(self: Controller): ChatDto =
+proc getMyChatId*(self: Controller): string =
-  return self.chatService.getChatById(self.chatId)
+  return self.chatId
 
-proc getChatMembers*(self: Controller): seq[ChatMember] =
+proc getMyChat*(self: Controller): ChatDto =
-  if self.belongsToCommunity:
+  return self.chatService.getChatById(self.chatId)
-    let myCommunity = self.getMyCommunity()
-    # TODO: when a new channel is added, chat may arrive earlier and we have no up to date community yet
-    # see log here: https://github.com/status-im/status-desktop/issues/14442#issuecomment-2120756598
-    # should be resolved in https://github.com/status-im/status-desktop/issues/14219
-    let members = myCommunity.getCommunityChat(self.chatId).members
-    if members.len > 0:
-      return members
-  return self.chatService.getChatById(self.chatId).members
 
 proc getContactNameAndImage*(self: Controller, contactId: string):
     tuple[name: string, image: string, largeImage: string] =

src/app/modules/main/chat_section/chat_content/users/io_interface.nim

@@ -20,6 +20,9 @@ method isLoaded*(self: AccessInterface): bool {.base.} =
 method getModuleAsVariant*(self: AccessInterface): QVariant {.base.} =
   raise newException(ValueError, "No implementation available")
 
+method getUsersListVariant*(self: AccessInterface): QVariant {.base.} =
+  raise newException(ValueError, "No implementation available")
+
 method onNewMessagesLoaded*(self: AccessInterface, messages: seq[MessageDto]) {.base.} =
   raise newException(ValueError, "No implementation available")
 
@@ -59,5 +62,5 @@ method addGroupMembers*(self: AccessInterface, pubKeys: seq[string]) {.base.} =
 method removeGroupMembers*(self: AccessInterface, pubKeys: seq[string]) {.base.} =
   raise newException(ValueError, "No implementation available")
 
-method updateMembersList*(self: AccessInterface) {.base.} =
+method updateMembersList*(self: AccessInterface, membersToReset: seq[ChatMember] = @[]) {.base.} =
   raise newException(ValueError, "No implementation available")

src/app/modules/main/chat_section/chat_content/users/module.nim

@@ -4,13 +4,13 @@ import view, controller
 import ../../../../shared_models/[member_model, member_item]
 import ../../../../../global/global_singleton
 import ../../../../../core/eventemitter
-import ../../../../../../app_service/common/conversion
 import ../../../../../../app_service/common/types
 import ../../../../../../app_service/service/contacts/dto/contacts
 import ../../../../../../app_service/service/contacts/service as contact_service
 import ../../../../../../app_service/service/chat/service as chat_service
 import ../../../../../../app_service/service/community/service as community_service
 import ../../../../../../app_service/service/message/service as message_service
+from ../../../../../../app_service/common/conversion import intToEnum
 
 export io_interface
 
@@ -20,15 +20,17 @@ type
     viewVariant: QVariant
     controller: Controller
     moduleLoaded: bool
+    isPublicCommunityChannel: bool
+    isSectionMemberList: bool
 
 # Forward declaration
-proc processChatMember(self: Module,  member: ChatMember): MemberItem
+proc processChatMember(self: Module,  member: ChatMember, reset: bool = false): tuple[doAdd: bool, memberItem: MemberItem]
 
 proc newModule*(
   events: EventEmitter, sectionId: string, chatId: string,
   belongsToCommunity: bool, isUsersListAvailable: bool, contactService: contact_service.Service,
   chatService: chat_service.Service, communityService: community_service.Service,
-  messageService: message_service.Service,
+  messageService: message_service.Service, isSectionMemberList: bool = false,
 ): Module =
   result = Module()
   result.view = view.newView(result)
@@ -38,6 +40,8 @@ proc newModule*(
     contactService, chatService, communityService, messageService,
   )
   result.moduleLoaded = false
+  result.isPublicCommunityChannel = false
+  result.isSectionMemberList = isSectionMemberList
 
 method delete*(self: Module) =
   self.controller.delete
@@ -59,7 +63,12 @@ method viewDidLoad*(self: Module) =
 method getModuleAsVariant*(self: Module): QVariant =
   return self.viewVariant
 
+method getUsersListVariant*(self: Module): QVariant =
+  self.view.getModel()
+
 method contactNicknameChanged*(self: Module, publicKey: string) =
+  if self.isPublicCommunityChannel:
+    return
   let contactDetails = self.controller.getContactDetails(publicKey)
   self.view.model().setName(
     publicKey,
@@ -69,11 +78,15 @@ method contactNicknameChanged*(self: Module, publicKey: string) =
     )
 
 method contactsStatusUpdated*(self: Module, statusUpdates: seq[StatusUpdateDto]) =
+  if self.isPublicCommunityChannel:
+    return
   for s in statusUpdates:
     var status = toOnlineStatus(s.statusType)
     self.view.model().setOnlineStatus(s.publicKey, status)
 
 method contactUpdated*(self: Module, publicKey: string) =
+  if self.isPublicCommunityChannel:
+    return
   let contactDetails = self.controller.getContactDetails(publicKey)
   let isMe = publicKey == singletonInstance.userProfile.getPubKey()
   self.view.model().updateItem(
@@ -90,37 +103,43 @@ method contactUpdated*(self: Module, publicKey: string) =
   )
 
 method userProfileUpdated*(self: Module) =
+  if self.isPublicCommunityChannel:
+    return
   self.contactUpdated(singletonInstance.userProfile.getPubKey())
 
 method loggedInUserImageChanged*(self: Module) =
+  if self.isPublicCommunityChannel:
+    return
   self.view.model().setIcon(singletonInstance.userProfile.getPubKey(), singletonInstance.userProfile.getIcon())
 
 # This function either removes the member if it is no longer part of the community,
 # does nothing if the member is already in the model or creates the MemberItem
-proc processChatMember(self: Module,  member: ChatMember): MemberItem =
+proc processChatMember(self: Module,  member: ChatMember, reset: bool = false): tuple[doAdd: bool, memberItem: MemberItem] =
+  result.doAdd = false
   if member.id == "":
     return
 
-  if not self.controller.belongsToCommunity() and not member.joined:
+  if not reset and not self.controller.belongsToCommunity() and not member.joined:
     if self.view.model().isContactWithIdAdded(member.id):
       # Member is no longer joined
       self.view.model().removeItemById(member.id)
     return
 
-  if self.view.model().isContactWithIdAdded(member.id):
+  if not reset and self.view.model().isContactWithIdAdded(member.id):
     return
 
   let isMe = member.id == singletonInstance.userProfile.getPubKey()
   let contactDetails = self.controller.getContactDetails(member.id)
   var status = OnlineStatus.Online
-  if (isMe):
+  if isMe:
     let currentUserStatus = intToEnum(singletonInstance.userProfile.getCurrentUserStatus(), StatusType.Unknown)
     status = toOnlineStatus(currentUserStatus)
   else:
     let statusUpdateDto = self.controller.getStatusForContact(member.id)
     status = toOnlineStatus(statusUpdateDto.statusType)
 
-  return initMemberItem(
+  result.doAdd = true
+  result.memberItem = initMemberItem(
     pubKey = member.id,
     displayName = contactDetails.dto.displayName,
     ensName = contactDetails.dto.name,
@@ -139,35 +158,42 @@ proc processChatMember(self: Module,  member: ChatMember): MemberItem =
   )
 
 method onChatMembersAdded*(self: Module, ids: seq[string]) =
+  if self.isPublicCommunityChannel:
+    return
   var memberItems: seq[MemberItem] = @[]
 
   for memberId in ids:
-    let item = self.processChatMember(ChatMember(id: memberId, role: MemberRole.None, joined: true))
+    let (doAdd, item) = self.processChatMember(ChatMember(id: memberId, role: MemberRole.None, joined: true))
-    if item.pubKey != "":
+    if doAdd:
       memberItems.add(item)
 
   self.view.model().addItems(memberItems)
 
 method onChatMemberRemoved*(self: Module, id: string) =
+  if self.isPublicCommunityChannel:
+    return
   self.view.model().removeItemById(id)
 
 method onMembersChanged*(self: Module,  members: seq[ChatMember]) =
+  if self.isPublicCommunityChannel:
+    return
   let modelIDs = self.view.model().getItemIds()
   let membersAdded = filter(members, member => not modelIDs.contains(member.id))
   let membersRemoved = filter(modelIDs, id => not members.any(member => member.id == id))
 
   var memberItems: seq[MemberItem] = @[]
   for member in membersAdded:
-    let item = self.processChatMember(member)
+    let (doAdd, item) = self.processChatMember(member)
-    if item.pubKey != "":
+    if doAdd:
       memberItems.add(item)
   self.view.model().addItems(memberItems)
 
   for id in membersRemoved:
     self.onChatMemberRemoved(id)
 
-
 method onChatMemberUpdated*(self: Module, publicKey: string, memberRole: MemberRole, joined: bool) =
+  if self.isPublicCommunityChannel:
+    return
   let contactDetails = self.controller.getContactDetails(publicKey)
   let isMe = publicKey == singletonInstance.userProfile.getPubKey()
   self.view.model().updateItem(
@@ -191,13 +217,45 @@ method addGroupMembers*(self: Module, pubKeys: seq[string]) =
 method removeGroupMembers*(self: Module, pubKeys: seq[string]) =
   self.controller.removeGroupMembers(pubKeys)
 
-method updateMembersList*(self: Module) =
+method updateMembersList*(self: Module, membersToReset: seq[ChatMember] = @[]) =
-  let members = self.controller.getChatMembers()
+  let reset = membersToReset.len > 0
+  var members: seq[ChatMember]
+  if reset:
+    members = membersToReset
+  else:
+    if self.controller.belongsToCommunity():
+      let myCommunity = self.controller.getMyCommunity()
+
+      if self.isSectionMemberList:
+        members = myCommunity.members
+      else:
+        # TODO: when a new channel is added, chat may arrive earlier and we have no up to date community yet
+        # see log here: https://github.com/status-im/status-desktop/issues/14442#issuecomment-2120756598
+        # should be resolved in https://github.com/status-im/status-desktop/issues/11694
+        let myChatId = self.controller.getMyChatId()
+        let chat = myCommunity.getCommunityChat(myChatId)
+        if not chat.tokenGated:
+          # No need to get the members, this channel is not encrypted and can use the section member list
+          self.isPublicCommunityChannel = true
+          return
+        self.isPublicCommunityChannel = false
+        if chat.members.len > 0:
+          members = chat.members
+        else:
+          # The channel now has a permisison, but the re-eval wasn't performed yet. Show all members for now
+          members = myCommunity.members
+
+    if members.len == 0:
+      members = self.controller.getMyChat().members
+
   var memberItems: seq[MemberItem] = @[]
 
   for member in members:
-    let item = self.processChatMember(member)
+    let (doAdd, item) = self.processChatMember(member, reset)
-    if item.pubKey != "":
+    if doAdd:
       memberItems.add(item)
 
+  if reset:
+    self.view.model().setItems(memberItems)
+  else:
     self.view.model().addItems(memberItems)

src/app/modules/main/chat_section/chat_content/users/view.nim

@@ -33,10 +33,10 @@ QtObject:
 
   proc modelChanged*(self: View) {.signal.}
 
-  proc getModel(self: View): QVariant {.slot.} =
+  proc getModel*(self: View): QVariant {.slot.} =
     return self.modelVariant
 
-  QtProperty[QVariant]model:
+  QtProperty[QVariant] model:
     read = getModel
     notify = modelChanged
 

src/app/modules/main/chat_section/controller.nim

@@ -342,6 +342,11 @@ proc init*(self: Controller) =
       if args.communityId == self.sectionId:
         self.delegate.onSectionMutedChanged()
 
+    self.events.on(SIGNAL_COMMUNITY_MEMBERS_CHANGED) do(e: Args):
+      let args = CommunityMembersArgs(e)
+      if args.communityId == self.sectionId:
+        self.delegate.updateCommunityMemberList(args.members)
+
   self.events.on(SIGNAL_CONTACT_NICKNAME_CHANGED) do(e: Args):
     var args = ContactArgs(e)
     self.delegate.onContactDetailsUpdated(args.contactId)

src/app/modules/main/chat_section/io_interface.nim

@@ -46,6 +46,12 @@ method isLoaded*(self: AccessInterface): bool {.base.} =
 method getModuleAsVariant*(self: AccessInterface): QVariant {.base.} =
   raise newException(ValueError, "No implementation available")
 
+method updateCommunityMemberList*(self: AccessInterface, members: seq[ChatMember]) {.base.} =
+  raise newException(ValueError, "No implementation available")
+
+method getSectionMemberList*(self: AccessInterface): QVariant {.base.} =
+  raise newException(ValueError, "No implementation available")
+
 method onActiveSectionChange*(self: AccessInterface, sectionId: string) {.base.} =
   raise newException(ValueError, "No implementation available")
 

src/app/modules/main/chat_section/module.nim

@@ -17,6 +17,7 @@ import ../../shared_models/token_criteria_model
 import ../../shared_models/token_permission_chat_list_model
 
 import chat_content/module as chat_content_module
+import chat_content/users/module as users_module
 
 import ../../../global/global_singleton
 import ../../../core/eventemitter
@@ -53,6 +54,7 @@ type
     chatContentModules: OrderedTable[string, chat_content_module.AccessInterface]
     moduleLoaded: bool
     chatsLoaded: bool
+    membersListModule: users_module.AccessInterface
 
 # Forward declaration
 proc buildChatSectionUI(
@@ -121,6 +123,11 @@ proc newModule*(
   result.chatsLoaded = false
 
   result.chatContentModules = initOrderedTable[string, chat_content_module.AccessInterface]()
+  if isCommunity:
+    result.membersListModule = users_module.newModule(events, sectionId, chatId = "", isCommunity,
+      isUsersListAvailable = true, contactService, chatService, communityService, messageService, isSectionMemberList = true)
+  else:
+    result.membersListModule = nil
 
 proc currentUserWalletContainsAddress(self: Module, address: string): bool =
   if (address.len == 0):
@@ -218,6 +225,8 @@ method delete*(self: Module) =
   for cModule in self.chatContentModules.values:
     cModule.delete
   self.chatContentModules.clear
+  if self.membersListModule != nil:
+    self.membersListModule.delete
 
 method isCommunity*(self: Module): bool =
   return self.controller.isCommunity()
@@ -440,6 +449,10 @@ method onChatsLoaded*(
   self.buildChatSectionUI(community, chats, events, settingsService, nodeConfigurationService,
     contactService, chatService, communityService, messageService, mailserversService, sharedUrlsService)
 
+  # Generate members list
+  if self.membersListModule != nil:
+    self.membersListModule.load()
+
   if(not self.controller.isCommunity()):
     # we do this only in case of chat section (not in case of communities)
     self.initContactRequestsModel()
@@ -480,6 +493,12 @@ proc checkIfModuleDidLoad(self: Module) =
 method isLoaded*(self: Module): bool =
   return self.moduleLoaded
 
+method getSectionMemberList*(self: Module): QVariant =
+  return self.membersListModule.getUsersListVariant()
+
+method updateCommunityMemberList*(self: Module, members: seq[ChatMember]) =
+  self.membersListModule.updateMembersList(members)
+
 method viewDidLoad*(self: Module) =
   self.checkIfModuleDidLoad()
 

src/app/modules/main/chat_section/view.nim

@@ -573,3 +573,11 @@ QtObject:
       return
     self.communityMemberReevaluationStatus = value
     self.communityMemberReevaluationStatusChanged()
+
+  proc membersModelChanged*(self: View) {.signal.}
+  proc getMembersModel(self: View): QVariant {.slot.} =
+    return self.delegate.getSectionMemberList()
+
+  QtProperty[QVariant] membersModel:
+    read = getMembersModel
+    notify = membersModelChanged

src/app_service/service/community/service.nim

@@ -509,10 +509,7 @@ QtObject:
         self.events.emit(SIGNAL_COMMUNITY_CATEGORY_NAME_EDITED,
           CommunityCategoryArgs(communityId: community.id, category: category))
 
-    self.events.emit(SIGNAL_COMMUNITY_MEMBERS_CHANGED,
+  proc communityTokensChanged(community: CommunityDto, prev_community: CommunityDto): bool =
-      CommunityMembersArgs(communityId: community.id, members: community.members))
-
-  proc communityTokensChanged(self: Service, community: CommunityDto, prev_community: CommunityDto): bool =
     let communityTokens = community.communityTokensMetadata
     let prevCommunityTokens = prev_community.communityTokensMetadata
     # checking length is sufficient - communityTokensMetadata list can only extend
@@ -536,6 +533,17 @@ QtObject:
 
       let prevCommunity = self.communities[community.id]
 
+      # If there's settings without `id` it means the original
+      # signal didn't include actual communitySettings, hence we
+      # assign the settings we already have, otherwise we risk our
+      # settings to be overridden with wrong defaults.
+      if community.settings.id == "":
+        community.settings = prevCommunity.settings
+
+      # Save the updated community before calling events, because some events triggers look ups on the new community
+      # We will save again at the end if other properties were updated
+      self.saveUpdatedCommunity(community)
+
       try:
         let currOwner = community.findOwner()
         let prevOwner = prevCommunity.findOwner()
@@ -551,23 +559,15 @@ QtObject:
         let response = tokens_backend.registerLostOwnershipNotification(community.id)
         checkAndEmitACNotificationsFromResponse(self.events, response.result{"activityCenterNotifications"})
 
-      if self.communityTokensChanged(community, prevCommunity):
+      if communityTokensChanged(community, prevCommunity):
         self.events.emit(SIGNAL_COMMUNITY_TOKENS_CHANGED, nil)
 
-      # If there's settings without `id` it means the original
-      # signal didn't include actual communitySettings, hence we
-      # assign the settings we already have, otherwise we risk our
-      # settings to be overridden with wrong defaults.
-      if community.settings.id == "":
-        community.settings = prevCommunity.settings
-
       var deletedCategories: seq[string] = @[]
 
       # category was added
       if(community.categories.len > prevCommunity.categories.len):
         for category in community.categories:
           if findIndexById(category.id, prevCommunity.categories) == -1:
-            self.communities[community.id].categories.add(category)
             let chats = self.getChatsInCategory(community, category.id)
 
             self.events.emit(SIGNAL_COMMUNITY_CATEGORY_CREATED,
@@ -671,7 +671,6 @@ QtObject:
       if community.communityTokensMetadata.len > prevCommunity.communityTokensMetadata.len:
         for tokenMetadata in community.communityTokensMetadata:
           if findIndexBySymbol(tokenMetadata.symbol, prevCommunity.communityTokensMetadata) == -1:
-            self.communities[community.id].communityTokensMetadata.add(tokenMetadata)
             self.events.emit(SIGNAL_COMMUNITY_TOKEN_METADATA_ADDED,
                              CommunityTokenMetadataArgs(communityId: community.id,
                                                         tokenMetadata: tokenMetadata))
@@ -680,14 +679,12 @@ QtObject:
       if community.tokenPermissions.len > prevCommunity.tokenPermissions.len:
         for id, tokenPermission in community.tokenPermissions:
           if not prevCommunity.tokenPermissions.hasKey(id):
-            self.communities[community.id].tokenPermissions[id] = tokenPermission
 
             self.events.emit(SIGNAL_COMMUNITY_TOKEN_PERMISSION_CREATED,
               CommunityTokenPermissionArgs(communityId: community.id, tokenPermission: tokenPermission))
       elif community.tokenPermissions.len < prevCommunity.tokenPermissions.len:
         for id, prvTokenPermission in prevCommunity.tokenPermissions:
           if not community.tokenPermissions.hasKey(id):
-            self.communities[community.id].tokenPermissions.del(id)
             self.events.emit(SIGNAL_COMMUNITY_TOKEN_PERMISSION_DELETED,
               CommunityTokenPermissionArgs(communityId: community.id, tokenPermission: prvTokenPermission))
       else:
@@ -725,16 +722,13 @@ QtObject:
                 break
 
           if permissionUpdated:
-            self.communities[community.id].tokenPermissions[id] = tokenPermission
             self.events.emit(SIGNAL_COMMUNITY_TOKEN_PERMISSION_UPDATED,
               CommunityTokenPermissionArgs(communityId: community.id, tokenPermission: tokenPermission))
 
-      let wasJoined = self.communities[community.id].joined
+      let wasJoined = prevCommunity.joined
-
-      self.saveUpdatedCommunity(community)
 
       # If the community was not joined before but is now, we signal it
-      if(not wasJoined and community.joined and community.isMember):
+      if not wasJoined and community.joined and community.isMember:
         self.events.emit(SIGNAL_COMMUNITY_JOINED, CommunityArgs(community: community, fromUserAction: false))
 
       self.events.emit(SIGNAL_COMMUNITIES_UPDATE, CommunitiesArgs(communities: @[community]))

src/app_service/service/contacts/dto/contacts.nim

@@ -68,7 +68,7 @@ proc `$`(self: Images): string =
     ]"""
 
 proc `$`*(self: ContactsDto): string =
-  result = fmt"""ContactDto(
+  result = fmt"""ContactsDto(
     id: {self.id},
     name: {self.name},
     ensVerified: {self.ensVerified},

src/app_service/service/ens/dto/ens_username_dto.nim

@@ -15,7 +15,7 @@ proc `==`*(l, r: EnsUsernameDto): bool =
     return l.chainId == r.chainid and l.username == r.username
 
 proc `$`*(self: EnsUsernameDto): string =
-  result = fmt"""ContactDto(
+  result = fmt"""EnsUsernameDto(
     chainId: {self.chainId},
     username: {self.username},
     txType: {self.txType},

ui/app/AppLayouts/Chat/views/ChatView.qml

@@ -179,7 +179,17 @@ StatusSectionLayout {
             store: root.rootStore
             label: qsTr("Members")
             communityMemberReevaluationStatus: root.rootStore.communityMemberReevaluationStatus
-            usersModel: root.chatContentModule && root.chatContentModule.usersModule ? root.chatContentModule.usersModule.model : null
+            usersModel: {
+                if (!root.chatContentModule || !root.chatContentModule.chatDetails) {
+                    return null
+                }
+                let isFullCommunityList = !root.chatContentModule.chatDetails.requiresPermissions
+                if (root.chatContentModule.chatDetails.belongsToCommunity && isFullCommunityList) {
+                    // Community channel with no permisisons. We can use the section's membersModel
+                    return root.rootStore.chatCommunitySectionModule.membersModel
+                }
+                return root.chatContentModule.usersModule ? root.chatContentModule.usersModule.model : null
+            }
         }
     }