Trait 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.

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.

Implementors