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Vivek Pandya
2009821cde
* Remove use of trait Store from staking pallet * Remove use of trait Store from bounties pallet * Remove use of trait Store from collective pallet * Remove use of trait Store from babe pallet * Remove use of trait Store from assets pallet * Remove use of trait Store from grandpa pallet * Remove use of trait Store from balances pallet * Remove use of trait Store from authorship pallet * Remove use of trait Store from authority-discovery pallet * Remove use of trait Store from atomic-swap pallet * Remove use of trait Store from sudo pallet * Remove use of trait Store from scheduler pallet * Remove use of trait Store from scored-pool pallet * Remove use of trait Store from society pallet * Remove use of trait Store from lottery pallet * Remove use of trait Store from executive pallet * Remove use of trait Store from democracy pallet * Remove use of trait Store from elections-phragmen pallet * Remove use of trait Store from indices pallet * Remove use of trait Store from identity pallet * Remove use of trait Store from multisig pallet * Remove use of trait Store from merkle-mountain-range pallet * Remove use of trait Store from im-online pallet * Remove use of trait Store from membership pallet * Remove use of trait Store from nicks pallet * Remove use of trait Store from session pallet * Remove use of trait Store from transaction-payment pallet * Remove use of trait Store from utility pallet * Remove use of trait Store from child-bounties pallet * Remove use of trait Store from nis pallet * Remove use of trait Store from nfts pallet * Remove use of trait Store from conviction-voting pallet * Remove use of trait Store from treasury pallet * Remove use of trait Store from vesting pallet * Remove use of trait Store from preimage pallet * Remove use of trait Store from uniques pallet * Remove use of trait Store from ranked-collective pallet * Remove use of trait Store from beefy-mmr pallet * Remove use of trait Store from referenda pallet * Remove use of trait Store from whitelist pallet * Remove use of trait Store from alliance pallet * Remove use of trait Store from nomination-pools pallet * Remove use of trait Store from state-trie-migration pallet * Remove use of trait Store from message-queue pallet * Remove use of trait Store from root-offences pallet * Remove use of trait Store from root-testing pallet * Remove use of trait Store from timestamps pallet * Remove use of trait Store from system pallet * Remove use of trait Store from offences pallet * Remove use of trait Store from recovery pallet * Remove use of trait Store from node-authorization pallet * Remove use of trait Store from proxy pallet * Remove use of trait Store from benchmarking pallet * Remove use of trait Store from bags-list pallet * Add deprecated warning in store_trait * Change warning message * Run cargo fmt * Fix warning and update tests * Remove unnecessary allow deprecated * Remove use of trait Store * Fix mismatch in expected output * Minor update to warning message for deprecation of generate_store with Store trait attribute * Fixes as per review comments * Fixes as per review suggestions * Remove use of Store trait from core-fellowship pallet * Fix type in store_trait.rs * Fixes as pre review comment
Timestamp Module
The Timestamp module provides functionality to get and set the on-chain time.
Overview
The Timestamp module allows the validators to set and validate a timestamp with each block.
It uses inherents for timestamp data, which is provided by the block author and validated/verified by other validators. The timestamp can be set only once per block and must be set each block. There could be a constraint on how much time must pass before setting the new timestamp.
NOTE: The Timestamp module is the recommended way to query the on-chain time instead of using an approach based on block numbers. The block number based time measurement can cause issues because of cumulative calculation errors and hence should be avoided.
Interface
Dispatchable Functions
set- Sets the current time.
Public functions
get- Gets the current time for the current block. If this function is called prior to setting the timestamp, it will return the timestamp of the previous block.
Config Getters
MinimumPeriod- Gets the minimum (and advised) period between blocks for the chain.
Usage
The following example shows how to use the Timestamp module in your custom module to query the current timestamp.
Prerequisites
Import the Timestamp module into your custom module and derive the module configuration trait from the timestamp trait.
Get current timestamp
use pallet_timestamp::{self as timestamp};
#[frame_support::pallet]
pub mod pallet {
use super::*;
use frame_support::pallet_prelude::*;
use frame_system::pallet_prelude::*;
#[pallet::pallet]
pub struct Pallet<T>(_);
#[pallet::config]
pub trait Config: frame_system::Config + timestamp::Config {}
#[pallet::call]
impl<T: Config> Pallet<T> {
#[pallet::weight(0)]
pub fn get_time(origin: OriginFor<T>) -> DispatchResult {
let _sender = ensure_signed(origin)?;
let _now = <timestamp::Pallet<T>>::get();
Ok(())
}
}
}
Example from the FRAME
The Session module uses the Timestamp module for session management.
Related Modules
License: Apache-2.0