Module frame_support::storage::migration[−][src]

Some utilities for helping access storage with arbitrary key types.

Structs

StorageIterator	Utility to iterate through raw items in storage.
StorageKeyIterator	Utility to iterate through raw items in storage.

get_storage_value	Get a particular value in storage by the `module`, the map’s `item` name and the key `hash`.
have_storage_value	Get a particular value in storage by the `module`, the map’s `item` name and the key `hash`.
put_storage_value	Put a particular value into storage by the `module`, the map’s `item` name and the key `hash`.
remove_storage_prefix	Get a particular value in storage by the `module`, the map’s `item` name and the key `hash`.
take_storage_item	Get a particular value in storage by the `module`, the map’s `item` name and the key `hash`.
take_storage_value	Take a particular value in storage by the `module`, the map’s `item` name and the key `hash`.