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pallet_nomination_pools::adapter

Struct TransferStake

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pub struct TransferStake<T: Config, Staking: StakingInterface>(/* private fields */);
👎Deprecated: consider migrating to DelegateStake
Expand description

A staking strategy implementation that supports transfer based staking.

In order to stake, this adapter transfers the funds from the member/delegator account to the pool account and stakes through the pool account on Staking.

This is the older Staking strategy used by pools. To switch to the newer DelegateStake strategy in an existing runtime, storage migration is required. See migration::unversioned::DelegationStakeMigration. For new runtimes, it is highly recommended to use the DelegateStake strategy.

Trait Implementations§

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impl<T: Config, Staking: StakingInterface<Balance = BalanceOf<T>, AccountId = T::AccountId>> StakeStrategy for TransferStake<T, Staking>

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type Balance = <<T as Config>::Currency as Inspect<<T as Config>::AccountId>>::Balance

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type AccountId = <T as Config>::AccountId

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type CoreStaking = Staking

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fn strategy_type() -> StakeStrategyType

The type of staking strategy of the current adapter.
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fn transferable_balance( pool_account: Pool<Self::AccountId>, _: Member<Self::AccountId>, ) -> BalanceOf<T>

Balance that can be transferred from pool account to member. Read more
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fn total_balance(pool_account: Pool<Self::AccountId>) -> Option<BalanceOf<T>>

Total balance of the pool including amount that is actively staked.
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fn member_delegation_balance( _member_account: Member<T::AccountId>, ) -> Option<Staking::Balance>

Amount of tokens delegated by the member.
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fn pledge_bond( who: Member<T::AccountId>, pool_account: Pool<Self::AccountId>, reward_account: &Self::AccountId, amount: BalanceOf<T>, bond_type: BondType, ) -> DispatchResult

Pledge amount towards pool_account and update the pool bond. Also see [StakingInterface::bond].
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fn member_withdraw( who: Member<Self::AccountId>, pool_account: Pool<Self::AccountId>, amount: BalanceOf<T>, _num_slashing_spans: u32, ) -> DispatchResult

Withdraw funds from pool account to member account.
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fn dissolve(pool_account: Pool<Self::AccountId>) -> DispatchResult

Dissolve the pool account.
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fn pending_slash(_: Pool<Self::AccountId>) -> Self::Balance

Check if there is any pending slash for the pool.
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fn member_slash( _who: Member<Self::AccountId>, _pool: Pool<Self::AccountId>, _amount: Staking::Balance, _maybe_reporter: Option<T::AccountId>, ) -> DispatchResult

Slash the member account with amount against pending slashes for the pool.
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fn migrate_nominator_to_agent( _pool: Pool<Self::AccountId>, _reward_account: &Self::AccountId, ) -> DispatchResult

Migrate pool account from being a direct nominator to a delegated agent. Read more
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fn migrate_delegation( _pool: Pool<Self::AccountId>, _delegator: Member<Self::AccountId>, _value: Self::Balance, ) -> DispatchResult

Migrate member balance from pool account to member account. Read more
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fn bonding_duration() -> EraIndex

See [StakingInterface::bonding_duration].
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fn current_era() -> EraIndex

See [StakingInterface::current_era].
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fn minimum_nominator_bond() -> Self::Balance

See [StakingInterface::minimum_nominator_bond].
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fn active_stake(pool_account: Pool<Self::AccountId>) -> Self::Balance

See [StakingInterface::active_stake].
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fn total_stake(pool_account: Pool<Self::AccountId>) -> Self::Balance

See [StakingInterface::total_stake].
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fn pool_strategy(pool_account: Pool<Self::AccountId>) -> StakeStrategyType

Which strategy the pool account is using. Read more
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fn nominate( pool_account: Pool<Self::AccountId>, validators: Vec<Self::AccountId>, ) -> DispatchResult

See [StakingInterface::nominate].
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fn chill(pool_account: Pool<Self::AccountId>) -> DispatchResult

See [StakingInterface::chill].
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fn unbond( pool_account: Pool<Self::AccountId>, amount: Self::Balance, ) -> DispatchResult

See [StakingInterface::unbond].
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fn withdraw_unbonded( pool_account: Pool<Self::AccountId>, num_slashing_spans: u32, ) -> Result<bool, DispatchError>

See [StakingInterface::withdraw_unbonded].
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fn nominations( pool_account: Pool<Self::AccountId>, ) -> Option<Vec<Self::AccountId>>

List of validators nominated by the pool account.
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fn remove_as_agent(_pool: Pool<Self::AccountId>)

Remove the pool account as agent. Read more

Auto Trait Implementations§

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impl<T, Staking> Freeze for TransferStake<T, Staking>
where <T as Config>::RuntimeEvent: Sized,

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impl<T, Staking> RefUnwindSafe for TransferStake<T, Staking>
where <T as Config>::RuntimeEvent: Sized, T: RefUnwindSafe, Staking: RefUnwindSafe,

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impl<T, Staking> Send for TransferStake<T, Staking>
where <T as Config>::RuntimeEvent: Sized, T: Send, Staking: Send,

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impl<T, Staking> Sync for TransferStake<T, Staking>
where <T as Config>::RuntimeEvent: Sized, T: Sync, Staking: Sync,

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impl<T, Staking> Unpin for TransferStake<T, Staking>
where <T as Config>::RuntimeEvent: Sized, T: Unpin, Staking: Unpin,

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impl<T, Staking> UnwindSafe for TransferStake<T, Staking>
where <T as Config>::RuntimeEvent: Sized, T: UnwindSafe, Staking: UnwindSafe,

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