Lottery¶

Calls¶

buy_ticket¶

See [Pallet::buy_ticket].

Attributes¶

Name	Type
call	`Box<<T as Config>::RuntimeCall>`

Python¶

call = substrate.compose_call(
    'Lottery', 'buy_ticket', {'call': 'Call'}
)

set_calls¶

See [Pallet::set_calls].

Attributes¶

Name	Type
calls	`Vec<<T as Config>::RuntimeCall>`

Python¶

call = substrate.compose_call(
    'Lottery', 'set_calls', {'calls': ['Call']}
)

start_lottery¶

See [Pallet::start_lottery].

Attributes¶

Name	Type
price	`BalanceOf<T>`
length	`BlockNumberFor<T>`
delay	`BlockNumberFor<T>`
repeat	`bool`

Python¶

call = substrate.compose_call(
    'Lottery', 'start_lottery', {
    'delay': 'u32',
    'length': 'u32',
    'price': 'u128',
    'repeat': 'bool',
}
)

stop_repeat¶

See [Pallet::stop_repeat].

Attributes¶

No attributes

Python¶

call = substrate.compose_call(
    'Lottery', 'stop_repeat', {}
)

Events¶

CallsUpdated¶

A new set of calls have been set!

Attributes¶

No attributes

LotteryStarted¶

A lottery has been started!

Attributes¶

No attributes

TicketBought¶

A ticket has been bought!

Attributes¶

Name	Type	Composition
who	`T::AccountId`	`AccountId`
call_index	`CallIndex`	`('u8', 'u8')`

Winner¶

A winner has been chosen!

Attributes¶

Name	Type	Composition
winner	`T::AccountId`	`AccountId`
lottery_balance	`BalanceOf<T>`	`u128`

Storage functions¶

CallIndices¶

The calls stored in this pallet to be used in an active lottery if configured by Config::ValidateCall.

Python¶

result = substrate.query(
    'Lottery', 'CallIndices', []
)

Return value¶

[('u8', 'u8')]

Lottery¶

The configuration for the current lottery.

Python¶

result = substrate.query(
    'Lottery', 'Lottery', []
)

Return value¶

{
    'delay': 'u32',
    'length': 'u32',
    'price': 'u128',
    'repeat': 'bool',
    'start': 'u32',
}

LotteryIndex¶

Python¶

result = substrate.query(
    'Lottery', 'LotteryIndex', []
)

Return value¶

'u32'

Participants¶

Users who have purchased a ticket. (Lottery Index, Tickets Purchased)

Python¶

result = substrate.query(
    'Lottery', 'Participants', ['AccountId']
)

Return value¶

('u32', [('u8', 'u8')])

Tickets¶

Each ticket's owner.

May have residual storage from previous lotteries. Use TicketsCount to see which ones are actually valid ticket mappings.

Python¶

result = substrate.query(
    'Lottery', 'Tickets', ['u32']
)

Return value¶

'AccountId'

TicketsCount¶

Total number of tickets sold.

Python¶

result = substrate.query(
    'Lottery', 'TicketsCount', []
)

Return value¶

'u32'

Constants¶

MaxCalls¶

The max number of calls available in a single lottery.

Value¶

Python¶

constant = substrate.get_constant('Lottery', 'MaxCalls')

MaxGenerateRandom¶

Number of time we should try to generate a random number that has no modulo bias. The larger this number, the more potential computation is used for picking the winner, but also the more likely that the chosen winner is done fairly.

Value¶

Python¶

constant = substrate.get_constant('Lottery', 'MaxGenerateRandom')

PalletId¶

The Lottery's pallet id

Value¶

'0x70792f6c6f74746f'

Python¶

constant = substrate.get_constant('Lottery', 'PalletId')

Errors¶

AlreadyEnded¶

A lottery has already ended.

AlreadyParticipating¶

You are already participating in the lottery with this call.

EncodingFailed¶

Failed to encode calls

InProgress¶

A lottery is already in progress.

InvalidCall¶

The call is not valid for an open lottery.

NotConfigured¶

A lottery has not been configured.

TooManyCalls¶

Too many calls for a single lottery.