Trait orml_traits::currency::MultiCurrencyExtended

pub trait MultiCurrencyExtended<AccountId>: MultiCurrency<AccountId> {
    type Amount: Signed + TryInto<Self::Balance> + TryFrom<Self::Balance> + SimpleArithmetic + Codec + Copy + MaybeSerializeDeserialize + Debug + Default + TypeInfo;
    fn update_balance(
        currency_id: Self::CurrencyId, 
        who: &AccountId, 
        by_amount: Self::Amount
    ) -> DispatchResult;
}

Extended MultiCurrency with additional helper types and methods.

Associated Types

type Amount: Signed + TryInto<Self::Balance> + TryFrom<Self::Balance> + SimpleArithmetic + Codec + Copy + MaybeSerializeDeserialize + Debug + Default + TypeInfo

The type for balance related operations, typically signed int.

Required methods

fn update_balance(
    currency_id: Self::CurrencyId,
    who: &AccountId,
    by_amount: Self::Amount
) -> DispatchResult

Add or remove abs(by_amount) from the balance of who under currency_id. If positive by_amount, do add, else do remove.

Implementors