91 implement challenge store (#95)

* ignite scaffold type challenge initiator challenger challangee result description --module dao * add height to challenge * implement challenge store * rename challenge result to success --------- Signed-off-by: Lorenz Herzberger <lorenzherzberger@gmail.com>
2025-03-30 15:08:28 +00:00 · 2023-09-27 14:00:51 +02:00 · 2023-09-27 14:00:51 +02:00 · d978e9da56
commit d978e9da56
parent 6718f289a9
8 changed files with 648 additions and 9 deletions
--- a/app/app.go
+++ b/app/app.go
@ -315,7 +315,7 @@ func New(
 		machinemoduletypes.StoreKey, machinemoduletypes.TAIndexKey, machinemoduletypes.IssuerPlanetmintIndexKey, machinemoduletypes.IssuerLiquidIndexKey,
 		machinemoduletypes.TrustAnchorKey, machinemoduletypes.AddressIndexKey,
 		assetmoduletypes.StoreKey,
-		daomoduletypes.StoreKey,
+		daomoduletypes.StoreKey, daomoduletypes.ChallengeKey,
 		// this line is used by starport scaffolding # stargate/app/storeKey
 	)
 	tkeys := sdk.NewTransientStoreKeys(paramstypes.TStoreKey)
@ -566,6 +566,7 @@ func New(
 		appCodec,
 		keys[daomoduletypes.StoreKey],
 		keys[daomoduletypes.MemStoreKey],
+		keys[daomoduletypes.ChallengeKey],
 		app.GetSubspace(daomoduletypes.ModuleName),

 		app.BankKeeper,
--- a/proto/planetmintgo/dao/challenge.proto
+++ b/proto/planetmintgo/dao/challenge.proto
@ -0,0 +1,14 @@
+syntax = "proto3";
+package planetmintgo.dao;
+
+option go_package = "github.com/planetmint/planetmint-go/x/dao/types";
+
+message Challenge {
+  
+  string initiator = 1; 
+  string challenger = 2; 
+  string challangee = 3; 
+  uint64 height = 4;
+  bool success = 5; 
+  string description = 6; 
+}
--- a/testutil/keeper/dao.go
+++ b/testutil/keeper/dao.go
@ -20,11 +20,14 @@ import (
 func DaoKeeper(t testing.TB) (*keeper.Keeper, sdk.Context) {
 	storeKey := sdk.NewKVStoreKey(types.StoreKey)
 	memStoreKey := storetypes.NewMemoryStoreKey(types.MemStoreKey)
+	challengeStoreKey := storetypes.NewMemoryStoreKey(types.ChallengeKey)

 	db := tmdb.NewMemDB()
 	stateStore := store.NewCommitMultiStore(db)
 	stateStore.MountStoreWithDB(storeKey, storetypes.StoreTypeIAVL, db)
 	stateStore.MountStoreWithDB(memStoreKey, storetypes.StoreTypeMemory, nil)
+	stateStore.MountStoreWithDB(challengeStoreKey, storetypes.StoreTypeIAVL, db)
+
 	require.NoError(t, stateStore.LoadLatestVersion())

 	registry := codectypes.NewInterfaceRegistry()
@ -40,6 +43,7 @@ func DaoKeeper(t testing.TB) (*keeper.Keeper, sdk.Context) {
 		cdc,
 		storeKey,
 		memStoreKey,
+		challengeStoreKey,
 		paramsSubspace,
 		nil,
 		nil,
--- a/x/dao/keeper/challenge.go
+++ b/x/dao/keeper/challenge.go
@ -0,0 +1,30 @@
+package keeper
+
+import (
+	"math/big"
+
+	"github.com/cosmos/cosmos-sdk/store/prefix"
+	sdk "github.com/cosmos/cosmos-sdk/types"
+	"github.com/planetmint/planetmint-go/x/dao/types"
+)
+
+func (k Keeper) StoreChallenge(ctx sdk.Context, challenge types.Challenge) {
+	store := prefix.NewStore(ctx.KVStore(k.storeKey), types.KeyPrefix(types.ChallengeKey))
+	appendValue := k.cdc.MustMarshal(&challenge)
+	store.Set(getChallengeBytes(challenge.Height), appendValue)
+}
+
+func (k Keeper) GetChallenge(ctx sdk.Context, height uint64) (val types.Challenge, found bool) {
+	store := prefix.NewStore(ctx.KVStore(k.storeKey), types.KeyPrefix(types.ChallengeKey))
+	challenge := store.Get(getChallengeBytes(height))
+	if challenge == nil {
+		return val, false
+	}
+	k.cdc.MustUnmarshal(challenge, &val)
+	return val, true
+}
+
+func getChallengeBytes(height uint64) []byte {
+	// Adding 1 because 0 will be interpreted as nil, which is an invalid key
+	return big.NewInt(int64(height + 1)).Bytes()
+}
--- a/x/dao/keeper/challenge_test.go
+++ b/x/dao/keeper/challenge_test.go
@ -0,0 +1,37 @@
+package keeper_test
+
+import (
+	"fmt"
+	"testing"
+
+	keepertest "github.com/planetmint/planetmint-go/testutil/keeper"
+	"github.com/stretchr/testify/assert"
+
+	sdk "github.com/cosmos/cosmos-sdk/types"
+	"github.com/planetmint/planetmint-go/x/dao/keeper"
+	"github.com/planetmint/planetmint-go/x/dao/types"
+)
+
+func createNChallenge(keeper *keeper.Keeper, ctx sdk.Context, n int) []types.Challenge {
+	items := make([]types.Challenge, n)
+	for i := range items {
+		items[i].Height = uint64(i)
+		items[i].Initiator = fmt.Sprintf("initiator%v", i)
+		items[i].Challenger = fmt.Sprintf("challanger%v", i)
+		items[i].Challangee = fmt.Sprintf("challangee%v", i)
+		items[i].Success = true
+		items[i].Description = fmt.Sprintf("expected %v got %v", i, i)
+		keeper.StoreChallenge(ctx, items[i])
+	}
+	return items
+}
+
+func TestGetChallenge(t *testing.T) {
+	keeper, ctx := keepertest.DaoKeeper(t)
+	items := createNChallenge(keeper, ctx, 10)
+	for _, item := range items {
+		challenge, found := keeper.GetChallenge(ctx, item.Height)
+		assert.True(t, found)
+		assert.Equal(t, item, challenge)
+	}
+}
--- a/x/dao/keeper/keeper.go
+++ b/x/dao/keeper/keeper.go
@ -18,10 +18,11 @@ import (

 type (
 	Keeper struct {
-		cdc        codec.BinaryCodec
-		storeKey   storetypes.StoreKey
-		memKey     storetypes.StoreKey
-		paramstore paramtypes.Subspace
+		cdc          codec.BinaryCodec
+		storeKey     storetypes.StoreKey
+		memKey       storetypes.StoreKey
+		challengeKey storetypes.StoreKey
+		paramstore   paramtypes.Subspace

 		bankKeeper    types.BankKeeper
 		accountKeeper types.AccountKeeper
@ -32,6 +33,7 @@ func NewKeeper(
 	cdc codec.BinaryCodec,
 	storeKey,
 	memKey storetypes.StoreKey,
+	challengeKey storetypes.StoreKey,
 	ps paramtypes.Subspace,

 	bankKeeper types.BankKeeper,
@ -43,10 +45,11 @@ func NewKeeper(
 	}

 	return &Keeper{
-		cdc:        cdc,
-		storeKey:   storeKey,
-		memKey:     memKey,
-		paramstore: ps,
+		cdc:          cdc,
+		storeKey:     storeKey,
+		memKey:       memKey,
+		challengeKey: challengeKey,
+		paramstore:   ps,

 		bankKeeper:    bankKeeper,
 		accountKeeper: accountKeeper,
--- a/x/dao/types/challenge.pb.go
+++ b/x/dao/types/challenge.pb.go
@ -0,0 +1,548 @@
+// Code generated by protoc-gen-gogo. DO NOT EDIT.
+// source: planetmintgo/dao/challenge.proto
+
+package types
+
+import (
+	fmt "fmt"
+	proto "github.com/cosmos/gogoproto/proto"
+	io "io"
+	math "math"
+	math_bits "math/bits"
+)
+
+// Reference imports to suppress errors if they are not otherwise used.
+var _ = proto.Marshal
+var _ = fmt.Errorf
+var _ = math.Inf
+
+// This is a compile-time assertion to ensure that this generated file
+// is compatible with the proto package it is being compiled against.
+// A compilation error at this line likely means your copy of the
+// proto package needs to be updated.
+const _ = proto.GoGoProtoPackageIsVersion3 // please upgrade the proto package
+
+type Challenge struct {
+	Initiator   string `protobuf:"bytes,1,opt,name=initiator,proto3" json:"initiator,omitempty"`
+	Challenger  string `protobuf:"bytes,2,opt,name=challenger,proto3" json:"challenger,omitempty"`
+	Challangee  string `protobuf:"bytes,3,opt,name=challangee,proto3" json:"challangee,omitempty"`
+	Height      uint64 `protobuf:"varint,4,opt,name=height,proto3" json:"height,omitempty"`
+	Success     bool   `protobuf:"varint,5,opt,name=success,proto3" json:"success,omitempty"`
+	Description string `protobuf:"bytes,6,opt,name=description,proto3" json:"description,omitempty"`
+}
+
+func (m *Challenge) Reset()         { *m = Challenge{} }
+func (m *Challenge) String() string { return proto.CompactTextString(m) }
+func (*Challenge) ProtoMessage()    {}
+func (*Challenge) Descriptor() ([]byte, []int) {
+	return fileDescriptor_04a15978d0195742, []int{0}
+}
+func (m *Challenge) XXX_Unmarshal(b []byte) error {
+	return m.Unmarshal(b)
+}
+func (m *Challenge) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
+	if deterministic {
+		return xxx_messageInfo_Challenge.Marshal(b, m, deterministic)
+	} else {
+		b = b[:cap(b)]
+		n, err := m.MarshalToSizedBuffer(b)
+		if err != nil {
+			return nil, err
+		}
+		return b[:n], nil
+	}
+}
+func (m *Challenge) XXX_Merge(src proto.Message) {
+	xxx_messageInfo_Challenge.Merge(m, src)
+}
+func (m *Challenge) XXX_Size() int {
+	return m.Size()
+}
+func (m *Challenge) XXX_DiscardUnknown() {
+	xxx_messageInfo_Challenge.DiscardUnknown(m)
+}
+
+var xxx_messageInfo_Challenge proto.InternalMessageInfo
+
+func (m *Challenge) GetInitiator() string {
+	if m != nil {
+		return m.Initiator
+	}
+	return ""
+}
+
+func (m *Challenge) GetChallenger() string {
+	if m != nil {
+		return m.Challenger
+	}
+	return ""
+}
+
+func (m *Challenge) GetChallangee() string {
+	if m != nil {
+		return m.Challangee
+	}
+	return ""
+}
+
+func (m *Challenge) GetHeight() uint64 {
+	if m != nil {
+		return m.Height
+	}
+	return 0
+}
+
+func (m *Challenge) GetSuccess() bool {
+	if m != nil {
+		return m.Success
+	}
+	return false
+}
+
+func (m *Challenge) GetDescription() string {
+	if m != nil {
+		return m.Description
+	}
+	return ""
+}
+
+func init() {
+	proto.RegisterType((*Challenge)(nil), "planetmintgo.dao.Challenge")
+}
+
+func init() { proto.RegisterFile("planetmintgo/dao/challenge.proto", fileDescriptor_04a15978d0195742) }
+
+var fileDescriptor_04a15978d0195742 = []byte{
+	// 238 bytes of a gzipped FileDescriptorProto
+	0x1f, 0x8b, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0xff, 0x4c, 0x90, 0x31, 0x4e, 0xc4, 0x30,
+	0x14, 0x44, 0x63, 0x58, 0x02, 0x31, 0x0d, 0x72, 0x81, 0x5c, 0x20, 0xcb, 0xa2, 0x4a, 0x43, 0x5c,
+	0x70, 0x03, 0xa8, 0x68, 0x53, 0xd2, 0x79, 0x1d, 0xcb, 0xb1, 0x94, 0xf5, 0x8f, 0xe2, 0xbf, 0x12,
+	0xdc, 0x82, 0x0b, 0xd1, 0x53, 0x6e, 0x49, 0x89, 0x92, 0x8b, 0x20, 0x59, 0xbb, 0x1b, 0x77, 0x7f,
+	0xde, 0x8c, 0x46, 0xfa, 0x43, 0xe5, 0x38, 0xe8, 0x60, 0x71, 0xe7, 0x03, 0x3a, 0x50, 0x9d, 0x06,
+	0x65, 0x7a, 0x3d, 0x0c, 0x36, 0x38, 0xdb, 0x8c, 0x13, 0x20, 0xb0, 0xbb, 0x3c, 0xd1, 0x74, 0x1a,
+	0x1e, 0xbf, 0x09, 0xad, 0x5e, 0x4f, 0x29, 0xf6, 0x40, 0x2b, 0x1f, 0x3c, 0x7a, 0x8d, 0x30, 0x71,
+	0x22, 0x49, 0x5d, 0xb5, 0x2b, 0x60, 0x82, 0xd2, 0x73, 0xe1, 0xc4, 0x2f, 0x92, 0x9d, 0x91, 0xb3,
+	0xaf, 0x83, 0xb3, 0x96, 0x5f, 0x66, 0x7e, 0x22, 0xec, 0x9e, 0x96, 0xbd, 0xf5, 0xae, 0x47, 0xbe,
+	0x91, 0xa4, 0xde, 0xb4, 0x47, 0xc5, 0x38, 0xbd, 0x8e, 0x7b, 0x63, 0x6c, 0x8c, 0xfc, 0x4a, 0x92,
+	0xfa, 0xa6, 0x3d, 0x49, 0x26, 0xe9, 0x6d, 0x67, 0xa3, 0x99, 0xfc, 0x88, 0x1e, 0x02, 0x2f, 0x53,
+	0x65, 0x8e, 0x5e, 0xde, 0x7e, 0x66, 0x41, 0x0e, 0xb3, 0x20, 0x7f, 0xb3, 0x20, 0x5f, 0x8b, 0x28,
+	0x0e, 0x8b, 0x28, 0x7e, 0x17, 0x51, 0xbc, 0x2b, 0xe7, 0xb1, 0xdf, 0x6f, 0x1b, 0x03, 0x3b, 0xb5,
+	0xbe, 0x9d, 0x9d, 0x4f, 0x0e, 0xd4, 0x47, 0x9a, 0x09, 0x3f, 0x47, 0x1b, 0xb7, 0x65, 0xda, 0xe8,
+	0xf9, 0x3f, 0x00, 0x00, 0xff, 0xff, 0x46, 0x8a, 0xdb, 0xcf, 0x47, 0x01, 0x00, 0x00,
+}
+
+func (m *Challenge) Marshal() (dAtA []byte, err error) {
+	size := m.Size()
+	dAtA = make([]byte, size)
+	n, err := m.MarshalToSizedBuffer(dAtA[:size])
+	if err != nil {
+		return nil, err
+	}
+	return dAtA[:n], nil
+}
+
+func (m *Challenge) MarshalTo(dAtA []byte) (int, error) {
+	size := m.Size()
+	return m.MarshalToSizedBuffer(dAtA[:size])
+}
+
+func (m *Challenge) MarshalToSizedBuffer(dAtA []byte) (int, error) {
+	i := len(dAtA)
+	_ = i
+	var l int
+	_ = l
+	if len(m.Description) > 0 {
+		i -= len(m.Description)
+		copy(dAtA[i:], m.Description)
+		i = encodeVarintChallenge(dAtA, i, uint64(len(m.Description)))
+		i--
+		dAtA[i] = 0x32
+	}
+	if m.Success {
+		i--
+		if m.Success {
+			dAtA[i] = 1
+		} else {
+			dAtA[i] = 0
+		}
+		i--
+		dAtA[i] = 0x28
+	}
+	if m.Height != 0 {
+		i = encodeVarintChallenge(dAtA, i, uint64(m.Height))
+		i--
+		dAtA[i] = 0x20
+	}
+	if len(m.Challangee) > 0 {
+		i -= len(m.Challangee)
+		copy(dAtA[i:], m.Challangee)
+		i = encodeVarintChallenge(dAtA, i, uint64(len(m.Challangee)))
+		i--
+		dAtA[i] = 0x1a
+	}
+	if len(m.Challenger) > 0 {
+		i -= len(m.Challenger)
+		copy(dAtA[i:], m.Challenger)
+		i = encodeVarintChallenge(dAtA, i, uint64(len(m.Challenger)))
+		i--
+		dAtA[i] = 0x12
+	}
+	if len(m.Initiator) > 0 {
+		i -= len(m.Initiator)
+		copy(dAtA[i:], m.Initiator)
+		i = encodeVarintChallenge(dAtA, i, uint64(len(m.Initiator)))
+		i--
+		dAtA[i] = 0xa
+	}
+	return len(dAtA) - i, nil
+}
+
+func encodeVarintChallenge(dAtA []byte, offset int, v uint64) int {
+	offset -= sovChallenge(v)
+	base := offset
+	for v >= 1<<7 {
+		dAtA[offset] = uint8(v&0x7f | 0x80)
+		v >>= 7
+		offset++
+	}
+	dAtA[offset] = uint8(v)
+	return base
+}
+func (m *Challenge) Size() (n int) {
+	if m == nil {
+		return 0
+	}
+	var l int
+	_ = l
+	l = len(m.Initiator)
+	if l > 0 {
+		n += 1 + l + sovChallenge(uint64(l))
+	}
+	l = len(m.Challenger)
+	if l > 0 {
+		n += 1 + l + sovChallenge(uint64(l))
+	}
+	l = len(m.Challangee)
+	if l > 0 {
+		n += 1 + l + sovChallenge(uint64(l))
+	}
+	if m.Height != 0 {
+		n += 1 + sovChallenge(uint64(m.Height))
+	}
+	if m.Success {
+		n += 2
+	}
+	l = len(m.Description)
+	if l > 0 {
+		n += 1 + l + sovChallenge(uint64(l))
+	}
+	return n
+}
+
+func sovChallenge(x uint64) (n int) {
+	return (math_bits.Len64(x|1) + 6) / 7
+}
+func sozChallenge(x uint64) (n int) {
+	return sovChallenge(uint64((x << 1) ^ uint64((int64(x) >> 63))))
+}
+func (m *Challenge) Unmarshal(dAtA []byte) error {
+	l := len(dAtA)
+	iNdEx := 0
+	for iNdEx < l {
+		preIndex := iNdEx
+		var wire uint64
+		for shift := uint(0); ; shift += 7 {
+			if shift >= 64 {
+				return ErrIntOverflowChallenge
+			}
+			if iNdEx >= l {
+				return io.ErrUnexpectedEOF
+			}
+			b := dAtA[iNdEx]
+			iNdEx++
+			wire |= uint64(b&0x7F) << shift
+			if b < 0x80 {
+				break
+			}
+		}
+		fieldNum := int32(wire >> 3)
+		wireType := int(wire & 0x7)
+		if wireType == 4 {
+			return fmt.Errorf("proto: Challenge: wiretype end group for non-group")
+		}
+		if fieldNum <= 0 {
+			return fmt.Errorf("proto: Challenge: illegal tag %d (wire type %d)", fieldNum, wire)
+		}
+		switch fieldNum {
+		case 1:
+			if wireType != 2 {
+				return fmt.Errorf("proto: wrong wireType = %d for field Initiator", wireType)
+			}
+			var stringLen uint64
+			for shift := uint(0); ; shift += 7 {
+				if shift >= 64 {
+					return ErrIntOverflowChallenge
+				}
+				if iNdEx >= l {
+					return io.ErrUnexpectedEOF
+				}
+				b := dAtA[iNdEx]
+				iNdEx++
+				stringLen |= uint64(b&0x7F) << shift
+				if b < 0x80 {
+					break
+				}
+			}
+			intStringLen := int(stringLen)
+			if intStringLen < 0 {
+				return ErrInvalidLengthChallenge
+			}
+			postIndex := iNdEx + intStringLen
+			if postIndex < 0 {
+				return ErrInvalidLengthChallenge
+			}
+			if postIndex > l {
+				return io.ErrUnexpectedEOF
+			}
+			m.Initiator = string(dAtA[iNdEx:postIndex])
+			iNdEx = postIndex
+		case 2:
+			if wireType != 2 {
+				return fmt.Errorf("proto: wrong wireType = %d for field Challenger", wireType)
+			}
+			var stringLen uint64
+			for shift := uint(0); ; shift += 7 {
+				if shift >= 64 {
+					return ErrIntOverflowChallenge
+				}
+				if iNdEx >= l {
+					return io.ErrUnexpectedEOF
+				}
+				b := dAtA[iNdEx]
+				iNdEx++
+				stringLen |= uint64(b&0x7F) << shift
+				if b < 0x80 {
+					break
+				}
+			}
+			intStringLen := int(stringLen)
+			if intStringLen < 0 {
+				return ErrInvalidLengthChallenge
+			}
+			postIndex := iNdEx + intStringLen
+			if postIndex < 0 {
+				return ErrInvalidLengthChallenge
+			}
+			if postIndex > l {
+				return io.ErrUnexpectedEOF
+			}
+			m.Challenger = string(dAtA[iNdEx:postIndex])
+			iNdEx = postIndex
+		case 3:
+			if wireType != 2 {
+				return fmt.Errorf("proto: wrong wireType = %d for field Challangee", wireType)
+			}
+			var stringLen uint64
+			for shift := uint(0); ; shift += 7 {
+				if shift >= 64 {
+					return ErrIntOverflowChallenge
+				}
+				if iNdEx >= l {
+					return io.ErrUnexpectedEOF
+				}
+				b := dAtA[iNdEx]
+				iNdEx++
+				stringLen |= uint64(b&0x7F) << shift
+				if b < 0x80 {
+					break
+				}
+			}
+			intStringLen := int(stringLen)
+			if intStringLen < 0 {
+				return ErrInvalidLengthChallenge
+			}
+			postIndex := iNdEx + intStringLen
+			if postIndex < 0 {
+				return ErrInvalidLengthChallenge
+			}
+			if postIndex > l {
+				return io.ErrUnexpectedEOF
+			}
+			m.Challangee = string(dAtA[iNdEx:postIndex])
+			iNdEx = postIndex
+		case 4:
+			if wireType != 0 {
+				return fmt.Errorf("proto: wrong wireType = %d for field Height", wireType)
+			}
+			m.Height = 0
+			for shift := uint(0); ; shift += 7 {
+				if shift >= 64 {
+					return ErrIntOverflowChallenge
+				}
+				if iNdEx >= l {
+					return io.ErrUnexpectedEOF
+				}
+				b := dAtA[iNdEx]
+				iNdEx++
+				m.Height |= uint64(b&0x7F) << shift
+				if b < 0x80 {
+					break
+				}
+			}
+		case 5:
+			if wireType != 0 {
+				return fmt.Errorf("proto: wrong wireType = %d for field Success", wireType)
+			}
+			var v int
+			for shift := uint(0); ; shift += 7 {
+				if shift >= 64 {
+					return ErrIntOverflowChallenge
+				}
+				if iNdEx >= l {
+					return io.ErrUnexpectedEOF
+				}
+				b := dAtA[iNdEx]
+				iNdEx++
+				v |= int(b&0x7F) << shift
+				if b < 0x80 {
+					break
+				}
+			}
+			m.Success = bool(v != 0)
+		case 6:
+			if wireType != 2 {
+				return fmt.Errorf("proto: wrong wireType = %d for field Description", wireType)
+			}
+			var stringLen uint64
+			for shift := uint(0); ; shift += 7 {
+				if shift >= 64 {
+					return ErrIntOverflowChallenge
+				}
+				if iNdEx >= l {
+					return io.ErrUnexpectedEOF
+				}
+				b := dAtA[iNdEx]
+				iNdEx++
+				stringLen |= uint64(b&0x7F) << shift
+				if b < 0x80 {
+					break
+				}
+			}
+			intStringLen := int(stringLen)
+			if intStringLen < 0 {
+				return ErrInvalidLengthChallenge
+			}
+			postIndex := iNdEx + intStringLen
+			if postIndex < 0 {
+				return ErrInvalidLengthChallenge
+			}
+			if postIndex > l {
+				return io.ErrUnexpectedEOF
+			}
+			m.Description = string(dAtA[iNdEx:postIndex])
+			iNdEx = postIndex
+		default:
+			iNdEx = preIndex
+			skippy, err := skipChallenge(dAtA[iNdEx:])
+			if err != nil {
+				return err
+			}
+			if (skippy < 0) || (iNdEx+skippy) < 0 {
+				return ErrInvalidLengthChallenge
+			}
+			if (iNdEx + skippy) > l {
+				return io.ErrUnexpectedEOF
+			}
+			iNdEx += skippy
+		}
+	}
+
+	if iNdEx > l {
+		return io.ErrUnexpectedEOF
+	}
+	return nil
+}
+func skipChallenge(dAtA []byte) (n int, err error) {
+	l := len(dAtA)
+	iNdEx := 0
+	depth := 0
+	for iNdEx < l {
+		var wire uint64
+		for shift := uint(0); ; shift += 7 {
+			if shift >= 64 {
+				return 0, ErrIntOverflowChallenge
+			}
+			if iNdEx >= l {
+				return 0, io.ErrUnexpectedEOF
+			}
+			b := dAtA[iNdEx]
+			iNdEx++
+			wire |= (uint64(b) & 0x7F) << shift
+			if b < 0x80 {
+				break
+			}
+		}
+		wireType := int(wire & 0x7)
+		switch wireType {
+		case 0:
+			for shift := uint(0); ; shift += 7 {
+				if shift >= 64 {
+					return 0, ErrIntOverflowChallenge
+				}
+				if iNdEx >= l {
+					return 0, io.ErrUnexpectedEOF
+				}
+				iNdEx++
+				if dAtA[iNdEx-1] < 0x80 {
+					break
+				}
+			}
+		case 1:
+			iNdEx += 8
+		case 2:
+			var length int
+			for shift := uint(0); ; shift += 7 {
+				if shift >= 64 {
+					return 0, ErrIntOverflowChallenge
+				}
+				if iNdEx >= l {
+					return 0, io.ErrUnexpectedEOF
+				}
+				b := dAtA[iNdEx]
+				iNdEx++
+				length |= (int(b) & 0x7F) << shift
+				if b < 0x80 {
+					break
+				}
+			}
+			if length < 0 {
+				return 0, ErrInvalidLengthChallenge
+			}
+			iNdEx += length
+		case 3:
+			depth++
+		case 4:
+			if depth == 0 {
+				return 0, ErrUnexpectedEndOfGroupChallenge
+			}
+			depth--
+		case 5:
+			iNdEx += 4
+		default:
+			return 0, fmt.Errorf("proto: illegal wireType %d", wireType)
+		}
+		if iNdEx < 0 {
+			return 0, ErrInvalidLengthChallenge
+		}
+		if depth == 0 {
+			return iNdEx, nil
+		}
+	}
+	return 0, io.ErrUnexpectedEOF
+}
+
+var (
+	ErrInvalidLengthChallenge        = fmt.Errorf("proto: negative length found during unmarshaling")
+	ErrIntOverflowChallenge          = fmt.Errorf("proto: integer overflow")
+	ErrUnexpectedEndOfGroupChallenge = fmt.Errorf("proto: unexpected end of group")
+)
--- a/x/dao/types/keys.go
+++ b/x/dao/types/keys.go
@ -12,6 +12,8 @@ const (

 	// MemStoreKey defines the in-memory store key
 	MemStoreKey = "mem_dao"
+
+	ChallengeKey = "Dao/Challenge"
 )

 func KeyPrefix(p string) []byte {