forked from cosmos/cosmos-sdk
/
migrations.go
38 lines (32 loc) · 1.13 KB
/
migrations.go
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package keeper
import (
sdk "github.com/cosmos/cosmos-sdk/types"
"github.com/cosmos/cosmos-sdk/x/gov/exported"
v2 "github.com/cosmos/cosmos-sdk/x/gov/migrations/v2"
v3 "github.com/cosmos/cosmos-sdk/x/gov/migrations/v3"
v4 "github.com/cosmos/cosmos-sdk/x/gov/migrations/v4"
)
// Migrator is a struct for handling in-place store migrations.
type Migrator struct {
keeper *Keeper
legacySubspace exported.ParamSubspace
}
// NewMigrator returns a new Migrator.
func NewMigrator(keeper *Keeper, legacySubspace exported.ParamSubspace) Migrator {
return Migrator{
keeper: keeper,
legacySubspace: legacySubspace,
}
}
// Migrate1to2 migrates from version 1 to 2.
func (m Migrator) Migrate1to2(ctx sdk.Context) error {
return v2.MigrateStore(ctx, m.keeper.storeKey, m.keeper.cdc)
}
// Migrate2to3 migrates from version 2 to 3.
func (m Migrator) Migrate2to3(ctx sdk.Context) error {
return v3.MigrateStore(ctx, m.keeper.storeKey, m.keeper.cdc)
}
// Migrate2to3 migrates from version 2 to 3.
func (m Migrator) Migrate3to4(ctx sdk.Context) error {
return v4.MigrateStore(ctx, m.keeper.storeKey, m.legacySubspace, m.keeper.cdc)
}