Merge pull request #721 from Pylons-tech/migrate_46

new param migrate

x/pylons/keeper/migrate.go

@@ -1,6 +1,7 @@
 package keeper
 
 import (
+	v046 "github.com/Pylons-tech/pylons/x/pylons/migrations/v046"
 	sdk "github.com/cosmos/cosmos-sdk/types"
 )
 
@@ -16,5 +17,5 @@ func NewMigrator(keeper Keeper) Migrator {
 
 // Migrate2to3 migrates from version 2 to 3.
 func (m Migrator) Migrate2to3(ctx sdk.Context) error {
-	return nil
+	return v046.MigrateStore(ctx, m.keeper.paramSpace)
 }

x/pylons/migrations/v046/store.go

@@ -0,0 +1,25 @@
+package v046
+
+import (
+	"github.com/Pylons-tech/pylons/x/pylons/types"
+	sdk "github.com/cosmos/cosmos-sdk/types"
+	paramtypes "github.com/cosmos/cosmos-sdk/x/params/types"
+)
+
+func migrateParamsStore(ctx sdk.Context, paramstore paramtypes.Subspace) {
+	if paramstore.HasKeyTable() {
+		paramstore.Set(ctx, types.ParamStoreKeyMaxTxsInBlock, types.DefaultMaxTxsInBlock)
+	} else {
+		paramstore.WithKeyTable(types.ParamKeyTable())
+		paramstore.Set(ctx, types.ParamStoreKeyMaxTxsInBlock, types.DefaultMaxTxsInBlock)
+	}
+}
+
+// MigrateStore performs in-place store migrations from v0.43 to v0.46. The
+// migration includes:
+//
+// - Migrate proposals to be Msg-based.
+func MigrateStore(ctx sdk.Context, paramstore paramtypes.Subspace) error {
+	migrateParamsStore(ctx, paramstore)
+	return nil
+}