[−][src]Module frame_support::storage

Stuff to do with the runtime's storage.

Modules

child	Operation on runtime child storages.
hashed	Operation on runtime storage using hashed keys.
migration	Some utilities for helping access storage with arbitrary key types.
unhashed	Operation on unhashed runtime storage.

Iterator for prefixed map.

Describes whether a storage transaction should be committed or rolled back.

IterableStorageDoubleMap	A strongly-typed double map in storage whose secondary keys and values can be iterated over.
IterableStorageMap	A strongly-typed map in storage whose keys and values can be iterated over.
StorageAppend	Marker trait that will be implemented for types that support the `storage::append` api.
StorageDecodeLength	Marker trait that will be implemented for types that support to decode their length in an effificent way. It is expected that the length is at the beginning of the encoded object and that the length is a `Compact<u32>`.
StorageDoubleMap	An implementation of a map with a two keys.
StorageMap	A strongly-typed map in storage.
StoragePrefixedMap	Trait for maps that store all its value after a unique prefix.
StorageValue	A trait for working with macro-generated storage values under the substrate storage API.

Execute the supplied function in a new storage transaction.