Trait polkadot_sdk_frame::traits::RankedMembers

pub trait RankedMembers {
    type AccountId;
    type Rank: AtLeast16BitUnsigned;

    // Required methods
    fn min_rank() -> Self::Rank;
    fn rank_of(who: &Self::AccountId) -> Option<Self::Rank>;
    fn induct(who: &Self::AccountId) -> Result<(), DispatchError>;
    fn promote(who: &Self::AccountId) -> Result<(), DispatchError>;
    fn demote(who: &Self::AccountId) -> Result<(), DispatchError>;
}

Ranked membership data structure.

Required Associated Types

type AccountId

type Rank: AtLeast16BitUnsigned

Required Methods

fn min_rank() -> Self::Rank

The lowest rank possible in this membership organisation.

fn rank_of(who: &Self::AccountId) -> Option<Self::Rank>

Return the rank of the given ID, or None if they are not a member.

fn induct(who: &Self::AccountId) -> Result<(), DispatchError>

Add a member to the group at the min_rank().

fn promote(who: &Self::AccountId) -> Result<(), DispatchError>

Promote a member to the next higher rank.

fn demote(who: &Self::AccountId) -> Result<(), DispatchError>

Demote a member to the next lower rank; demoting beyond the min_rank removes the member entirely.

Object Safety

This trait is not object safe.

Implementors