Struct pallet_lottery::pallet::Pallet

pub struct Pallet<T>(_);

The pallet implementing the on-chain logic.

Implementations

impl<T: Config> Pallet<T>

pub fn buy_ticket( origin: OriginFor<T>, call: Box<<T as Config>::RuntimeCall> ) -> DispatchResult

Buy a ticket to enter the lottery.

This extrinsic acts as a passthrough function for call. In all situations where call alone would succeed, this extrinsic should succeed.

If call is successful, then we will attempt to purchase a ticket, which may fail silently. To detect success of a ticket purchase, you should listen for the TicketBought event.

This extrinsic must be called by a signed origin.

pub fn set_calls( origin: OriginFor<T>, calls: Vec<<T as Config>::RuntimeCall> ) -> DispatchResult

Set calls in storage which can be used to purchase a lottery ticket.

This function only matters if you use the ValidateCall implementation provided by this pallet, which uses storage to determine the valid calls.

This extrinsic must be called by the Manager origin.

pub fn start_lottery( origin: OriginFor<T>, price: <<T as Config>::Currency as Currency<<T as Config>::AccountId>>::Balance, length: T::BlockNumber, delay: T::BlockNumber, repeat: bool ) -> DispatchResult

Start a lottery using the provided configuration.

This extrinsic must be called by the ManagerOrigin.

Parameters:

• price: The cost of a single ticket.
• length: How long the lottery should run for starting at the current block.
• delay: How long after the lottery end we should wait before picking a winner.
• repeat: If the lottery should repeat when completed.

pub fn stop_repeat(origin: OriginFor<T>) -> DispatchResult

If a lottery is repeating, you can use this to stop the repeat. The lottery will continue to run to completion.

This extrinsic must be called by the ManagerOrigin.

impl<T: Config> Pallet<T>

pub fn account_id() -> T::AccountId

The account ID of the lottery pot.

This actually does computation. If you need to keep using it, then make sure you cache the value and only call this once.

Trait Implementations

impl<T> Benchmarking for Pallet<T>where T: Config + Config,

fn benchmarks(extra: bool) -> Vec<BenchmarkMetadata>

Get the benchmarks available for this pallet. Generally there is one benchmark per extrinsic, so these are sometimes just called “extrinsics”.

fn run_benchmark( extrinsic: &[u8], c: &[(BenchmarkParameter, u32)], whitelist: &[TrackedStorageKey], verify: bool, internal_repeats: u32 ) -> Result<Vec<BenchmarkResult>, BenchmarkError>

Run the benchmarks for this pallet.

impl<T: Config> Callable<T> for Pallet<T>

type RuntimeCall = Call<T>

impl<T> Clone for Pallet<T>

fn clone(&self) -> Self

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl<T> Debug for Pallet<T>

fn fmt(&self, fmt: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<T: Config> GetStorageVersion for Pallet<T>

type CurrentStorageVersion = NoStorageVersionSet

This will be filled out by the pallet macro.

fn current_storage_version() -> Self::CurrentStorageVersion

Returns the current storage version as supported by the pallet.

fn on_chain_storage_version() -> StorageVersion

Returns the on-chain storage version of the pallet as stored in the storage.

impl<T: Config> Hooks<<T as Config>::BlockNumber> for Pallet<T>

fn on_initialize(n: T::BlockNumber) -> Weight

The block is being initialized. Implement to have something happen.

fn on_finalize(_n: BlockNumber)

The block is being finalized. Implement to have something happen.

fn on_idle(_n: BlockNumber, _remaining_weight: Weight) -> Weight

This will be run when the block is being finalized (before on_finalize).

fn on_runtime_upgrade() -> Weight

Perform a module upgrade.

fn try_state(_n: BlockNumber) -> Result<(), DispatchError>

Execute the sanity checks of this pallet, per block.

fn pre_upgrade() -> Result<Vec<u8, Global>, DispatchError>

Execute some pre-checks prior to a runtime upgrade.

fn post_upgrade(_state: Vec<u8, Global>) -> Result<(), DispatchError>

Execute some post-checks after a runtime upgrade.

fn offchain_worker(_n: BlockNumber)

Implementing this function on a module allows you to perform long-running tasks that make (by default) validators generate transactions that feed results of those long-running computations back on chain.

fn integrity_test()

Run integrity test.

impl<T: Config> IntegrityTest for Pallet<T>

fn integrity_test()

Run integrity test.

impl<T: Config> OffchainWorker<<T as Config>::BlockNumber> for Pallet<T>

fn offchain_worker(n: <T as Config>::BlockNumber)

This function is being called after every block import (when fully synced).

impl<T: Config> OnFinalize<<T as Config>::BlockNumber> for Pallet<T>

fn on_finalize(n: <T as Config>::BlockNumber)

The block is being finalized. Implement to have something happen.

impl<T: Config> OnGenesis for Pallet<T>

fn on_genesis()

Something that should happen at genesis.

impl<T: Config> OnIdle<<T as Config>::BlockNumber> for Pallet<T>

fn on_idle(n: <T as Config>::BlockNumber, remaining_weight: Weight) -> Weight

The block is being finalized. Implement to have something happen in case there is leftover weight. Check the passed remaining_weight to make sure it is high enough to allow for your pallet’s extra computation.

impl<T: Config> OnInitialize<<T as Config>::BlockNumber> for Pallet<T>

fn on_initialize(n: <T as Config>::BlockNumber) -> Weight

The block is being initialized. Implement to have something happen.

impl<T: Config> OnRuntimeUpgrade for Pallet<T>

fn on_runtime_upgrade() -> Weight

Perform a module upgrade.

fn pre_upgrade() -> Result<Vec<u8>, TryRuntimeError>

Execute some pre-checks prior to a runtime upgrade.

fn post_upgrade(state: Vec<u8>) -> Result<(), TryRuntimeError>

Execute some post-checks after a runtime upgrade.

fn try_on_runtime_upgrade(checks: bool) -> Result<Weight, DispatchError>

Same as on_runtime_upgrade, but perform the optional pre_upgrade and post_upgrade as well.

impl<T: Config> PalletInfoAccess for Pallet<T>

fn index() -> usize

Index of the pallet as configured in the runtime.

fn name() -> &'static str

Name of the pallet as configured in the runtime.

fn module_name() -> &'static str

Name of the Rust module containing the pallet.

fn crate_version() -> CrateVersion

Version of the crate containing the pallet.

impl<T: Config> PalletsInfoAccess for Pallet<T>

fn count() -> usize

The number of pallets’ information that this type represents.

fn infos() -> Vec<PalletInfoData>

All of the pallets’ information that this type represents.

impl<T> PartialEq<Pallet<T>> for Pallet<T>

fn eq(&self, other: &Self) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl<T: Config> StorageInfoTrait for Pallet<T>

fn storage_info() -> Vec<StorageInfo>

impl<T: Config> TryState<<T as Config>::BlockNumber> for Pallet<T>

fn try_state( n: <T as Config>::BlockNumber, _s: TryStateSelect ) -> Result<(), TryRuntimeError>

Execute the state checks.

impl<T: Config> ValidateCall<T> for Pallet<T>

fn validate_call(call: &<T as Config>::RuntimeCall) -> bool

impl<T: Config> WhitelistedStorageKeys for Pallet<T>

fn whitelisted_storage_keys() -> Vec<TrackedStorageKey>

Returns a Vec<TrackedStorageKey> indicating the storage keys that should be whitelisted during benchmarking. This means that those keys will be excluded from the benchmarking performance calculation.

impl<T> Eq for Pallet<T>