Struct common_runtime::providers::UdMembersStorage

pub struct UdMembersStorage<T: Config>(PhantomData<T>);

Tuple Fields

0: PhantomData<T>

Trait Implementations

impl<T> StoredMap<<<MultiSignature as Verify>::Signer as IdentifyAccount>::AccountId, FirstEligibleUd> for UdMembersStorage<T>

where T: Config<AccountId = AccountId> + Config<IdtyData = IdtyData>,

fn get(key: &T::AccountId) -> FirstEligibleUd

Get the item, or its default if it doesn’t yet exist; we make no distinction between the two.

fn try_mutate_exists<R, E: From<DispatchError>>( key: &T::AccountId, f: impl FnOnce(&mut Option<FirstEligibleUd>) -> Result<R, E> ) -> Result<R, E>

Maybe mutate the item only if an Ok value is returned from f. Do nothing if an Err is returned. It is removed or reset to default value if it has been mutated to None. f will always be called with an option representing if the storage item exists (Some<V>) or if the storage item does not exist (None), independent of the QueryType.

fn mutate<R>(k: &K, f: impl FnOnce(&mut T) -> R) -> Result<R, DispatchError>

Mutate the item.

fn mutate_exists<R>( k: &K, f: impl FnOnce(&mut Option<T>) -> R ) -> Result<R, DispatchError>

Mutate the item, removing or resetting to default value if it has been mutated to None.

fn insert(k: &K, t: T) -> Result<(), DispatchError>

Set the item to something new.

fn remove(k: &K) -> Result<(), DispatchError>

Remove the item or otherwise replace it with its default value; we don’t care which.