feat: add query groups in x/group (backport cosmos#14879) (cosmos…

…#15476)

Co-authored-by: atheeshp <59333759+atheeshp@users.noreply.github.com>
Co-authored-by: marbar3778 <marbar3778@yahoo.com>

CHANGELOG.md

@@ -38,6 +38,10 @@ Ref: https://keepachangelog.com/en/1.0.0/
 
 ## [Unreleased]
 
+### Features
+
+* (x/groups) [#14879](https://github.com/cosmos/cosmos-sdk/pull/14879) Add `Query/Groups` query to get all the groups.
+
 ### Improvements
 
 * (simapp) [#15305](https://github.com/cosmos/cosmos-sdk/pull/15305) Add `AppStateFnWithExtendedCb` with callback function to extend rawState and `AppStateRandomizedFnWithState` with extra genesisState argument which is the genesis state of the app.

x/group/keeper/grpc_query.go

@@ -354,8 +354,10 @@ func (k Keeper) TallyResult(goCtx context.Context, request *group.QueryTallyResu
 }
 
 // Groups returns all the groups present in the state.
-func (k Keeper) Groups(ctx context.Context, request *group.QueryGroupsRequest) (*group.QueryGroupsResponse, error) {
-	it, err := k.groupTable.PrefixScan(k.KVStoreService.OpenKVStore(ctx), 1, math.MaxUint64)
+func (k Keeper) Groups(goCtx context.Context, request *group.QueryGroupsRequest) (*group.QueryGroupsResponse, error) {
+	ctx := sdk.UnwrapSDKContext(goCtx)
+
+	it, err := k.groupTable.PrefixScan(ctx.KVStore(k.key), 1, math.MaxUint64)
 	if err != nil {
 		return nil, err
 	}

x/group/proto/cosmos/group/v1/query.proto

@@ -85,9 +85,10 @@ service Query {
   };
 
   // Groups queries all groups in state.
+  // 
+  // Since: cosmos-sdk 0.47.1
   rpc Groups(QueryGroupsRequest) returns (QueryGroupsResponse) {
-    option (cosmos_proto.method_added_in) = "cosmos-sdk 0.47.1";
-    option (google.api.http).get          = "/cosmos/group/v1/groups";
+    option (google.api.http).get = "/cosmos/group/v1/groups";
   };
 }
 
@@ -314,3 +315,23 @@ message QueryGroupsResponse {
   // pagination defines the pagination in the response.
   cosmos.base.query.v1beta1.PageResponse pagination = 2;
 }
+
+// QueryGroupsRequest is the Query/Groups request type.
+// 
+// Since: cosmos-sdk 0.47.1
+message QueryGroupsRequest {
+
+  // pagination defines an optional pagination for the request.
+  cosmos.base.query.v1beta1.PageRequest pagination = 2;
+}
+
+// QueryGroupsResponse is the Query/Groups response type.
+// 
+// Since: cosmos-sdk 0.47.1
+message QueryGroupsResponse {
+  // `groups` is all the groups present in state.
+  repeated GroupInfo groups = 1;
+
+  // pagination defines the pagination in the response.
+  cosmos.base.query.v1beta1.PageResponse pagination = 2;
+}