Module frame_support::migrations

Structs

• RemovePallet
  RemovePallet is a utility struct used to remove all storage items associated with a specific pallet.
• VersionedRuntimeUpgrade
  EXPERIMENTAL: The API of this feature may change.

Enums

• VersionedPostUpgradeData
  A helper enum to wrap the pre_upgrade bytes like an Option before passing them to post_upgrade. This enum is used rather than an Option to make the API clearer to the developer.

Traits

• PalletVersionToStorageVersionHelper
  Trait used by migrate_from_pallet_version_to_storage_version to do the actual migration.
• StoreCurrentStorageVersion
  Can store the current pallet version in storage.

Functions

• migrate_from_pallet_version_to_storage_version
  Migrate from the PalletVersion struct to the new StorageVersion struct.