Struct frame_support::traits::tokens::nonfungible::ItemOf

pub struct ItemOf<F: Inspect<AccountId>, A: Get<<F as Inspect<AccountId>>::ClassId>, AccountId>(_);

Convert a fungibles trait implementation into a fungible trait implementation by identifying a single item.

Trait Implementations

impl<F: Inspect<AccountId>, A: Get<<F as Inspect<AccountId>>::ClassId>, AccountId> Inspect<AccountId> for ItemOf<F, A, AccountId>

type InstanceId = <F as Inspect<AccountId>>::InstanceId

Type for identifying an asset instance.

fn owner(instance: &Self::InstanceId) -> Option<AccountId>

Returns the owner of asset instance, or None if the asset doesn’t exist or has no owner.

fn attribute(instance: &Self::InstanceId, key: &[u8]) -> Option<Vec<u8>>

Returns the attribute value of instance corresponding to key.

fn typed_attribute<K: Encode, V: Decode>(
    instance: &Self::InstanceId,
    key: &K
) -> Option<V>

Returns the strongly-typed attribute value of instance corresponding to key.

fn can_transfer(instance: &Self::InstanceId) -> bool

Returns true if the asset instance may be transferred.

impl<F: InspectEnumerable<AccountId>, A: Get<<F as Inspect<AccountId>>::ClassId>, AccountId> InspectEnumerable<AccountId> for ItemOf<F, A, AccountId>

fn instances() -> Box<dyn Iterator<Item = Self::InstanceId>>

Returns an iterator of the instances of an asset class in existence.

fn owned(who: &AccountId) -> Box<dyn Iterator<Item = Self::InstanceId>>

Returns an iterator of the asset instances of all classes owned by who.

impl<F: Mutate<AccountId>, A: Get<<F as Inspect<AccountId>>::ClassId>, AccountId> Mutate<AccountId> for ItemOf<F, A, AccountId>

fn mint_into(instance: &Self::InstanceId, who: &AccountId) -> DispatchResult

Mint some asset instance to be owned by who.

fn burn_from(instance: &Self::InstanceId) -> DispatchResult

Burn some asset instance.

fn set_attribute(
    instance: &Self::InstanceId,
    key: &[u8],
    value: &[u8]
) -> DispatchResult

Set attribute value of asset instance’s key.

fn set_typed_attribute<K: Encode, V: Encode>(
    instance: &Self::InstanceId,
    key: &K,
    value: &V
) -> DispatchResult

Attempt to set the strongly-typed attribute value of instance’s key.

impl<F: Transfer<AccountId>, A: Get<<F as Inspect<AccountId>>::ClassId>, AccountId> Transfer<AccountId> for ItemOf<F, A, AccountId>

fn transfer(
    instance: &Self::InstanceId,
    destination: &AccountId
) -> DispatchResult

Transfer asset instance into destination account.