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migration.go
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migration.go
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package v3
import (
storetypes "github.com/cosmos/cosmos-sdk/store/types"
sdk "github.com/cosmos/cosmos-sdk/types"
v3types "github.com/haqq-network/haqq/x/erc20/migrations/v3/types"
"github.com/haqq-network/haqq/x/erc20/types"
)
var isTrue = []byte{0x01}
// MigrateStore migrates the x/erc20 module state from the consensus version 2 to
// version 3. Specifically, it takes the parameters that are currently stored
// and managed by the Cosmos SDK params module and stores them directly into the x/erc20 module state.
func MigrateStore(
ctx sdk.Context,
storeKey storetypes.StoreKey,
legacySubspace types.Subspace,
) error {
store := ctx.KVStore(storeKey)
var params v3types.V3Params
legacySubspace = legacySubspace.WithKeyTable(v3types.ParamKeyTable())
legacySubspace.GetParamSet(ctx, ¶ms)
if err := params.Validate(); err != nil {
return err
}
if params.EnableErc20 {
store.Set(v3types.ParamStoreKeyEnableErc20, isTrue)
}
if params.EnableEVMHook {
store.Set(v3types.ParamStoreKeyEnableEVMHook, isTrue)
}
return nil
}