fix(curated_communities): fix error handling in curated communities call

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

@@ -40,6 +40,7 @@ type
     view: View
     viewVariant: QVariant
     moduleLoaded: bool
+    curatedCommunitiesLoaded: bool
     mintingModule: minting_module.AccessInterface
 
 # Forward declaration
@@ -66,6 +67,7 @@ proc newModule*(
   )
   result.mintingModule = minting_module.newMintingModule(result, events, communityTokensService)
   result.moduleLoaded = false
+  result.curatedCommunitiesLoaded = false
 
 method delete*(self: Module) =
   self.view.delete
@@ -92,9 +94,12 @@ method viewDidLoad*(self: Module) =
   self.delegate.communitiesModuleDidLoad()
 
 method onActivated*(self: Module) =
+  if self.curatedCommunitiesLoaded:
+    return
   self.controller.asyncLoadCuratedCommunities()
 
 method curatedCommunitiesLoaded*(self: Module, curatedCommunities: seq[CuratedCOmmunity]) =
+  self.curatedCommunitiesLoaded = true
   self.setCuratedCommunities(curatedCommunities)
   self.view.setCuratedCommunitiesLoading(false)
 
@@ -102,6 +107,8 @@ method curatedCommunitiesLoading*(self: Module) =
   self.view.setCuratedCommunitiesLoading(true)
 
 method curatedCommunitiesLoadingFailed*(self: Module) =
+  # TODO we probably want to show an error in the UI later
+  self.curatedCommunitiesLoaded = true
   self.view.setCuratedCommunitiesLoading(false)
 
 proc createMemberItem(self: Module, memberId, requestId: string): MemberItem =

src/app_service/service/community/async_tasks.nim

@@ -17,6 +17,11 @@ type
 
 const asyncLoadCuratedCommunitiesTask: Task = proc(argEncoded: string) {.gcsafe, nimcall.} =
   let arg = decode[AsyncLoadCuratedCommunitiesTaskArg](argEncoded)
-  let response = status_go.getCuratedCommunities()
-  arg.finish(response)
+  try:
+    let response = status_go.getCuratedCommunities()
+    arg.finish(response)
+  except Exception as e:
+    arg.finish(%* {
+      "error": RpcError(message: e.msg),
+    })
 

src/app_service/service/community/service.nim

@@ -1282,6 +1282,7 @@ QtObject:
       if (rpcResponseObj{"error"}.kind != JNull):
         let error = Json.decode($rpcResponseObj["error"], RpcError)
         error "Error requesting community info", msg = error.message
+        self.events.emit(SIGNAL_CURATED_COMMUNITIES_LOADING_FAILED, Args())
         return
 
       let curatedCommunities = parseCuratedCommunities(rpcResponseObj{"result"})
@@ -1290,8 +1291,8 @@ QtObject:
       self.events.emit(SIGNAL_CURATED_COMMUNITIES_LOADED, CuratedCommunitiesArgs(curatedCommunities: self.getCuratedCommunities()))
     except Exception as e:
       let errMsg = e.msg
-      error "error: ", errMsg
-      self.events.emit(SIGNAL_CURATEDCOMMUNITIES_LOADING_FAILED, Args())
+      error "error loading curated communities: ", errMsg
+      self.events.emit(SIGNAL_CURATED_COMMUNITIES_LOADING_FAILED, Args())
 
   proc requestCommunityInfo*(self: Service, communityId: string, importing = false) =