v5

func MigrateStore ¶

func MigrateStore(ctx sdk.Context, storeKey storetypes.StoreKey, cdc codec.BinaryCodec) error

MigrateStore performs the migration from version 4 to version 5 of the store. To do this, it iterates over all the post attachments, and converts them to the new storing format (AttachmentContent instead of Attachment). It also removes all the Polls that have been saved as a Poll_ProvidedAnswer's attachment.