47 lines
1007 B
Go
47 lines
1007 B
Go
package v5
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import (
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"context"
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"github.com/cosmos/gogoproto/types"
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"cosmossdk.io/collections"
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storetypes "cosmossdk.io/core/store"
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)
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var LegacyGlobalAccountNumberKey = []byte("globalAccountNumber")
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func Migrate(ctx context.Context, storeService storetypes.KVStoreService, sequence collections.Sequence) error {
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store := storeService.OpenKVStore(ctx)
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b, err := store.Get(LegacyGlobalAccountNumberKey)
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if err != nil {
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return err
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}
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if b == nil {
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// this would mean no account was ever created in this chain which is being migrated?
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// we're doing nothing as the collections.Sequence already handles the non-existing value.
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return nil
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}
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// get old value
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v := new(types.UInt64Value)
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err = v.Unmarshal(b)
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if err != nil {
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return err
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}
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// set the old value in the collection
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err = sequence.Set(ctx, v.Value)
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if err != nil {
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return err
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}
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// remove the value from the old prefix.
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err = store.Delete(LegacyGlobalAccountNumberKey)
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if err != nil {
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return err
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}
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return nil
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}
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