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Migrate all doc to new pallet macro (#10187)

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* Migrate all doc to new pallet macro

Signed-off-by: koushiro <koushiro.cqx@gmail.com>

* Fix indent

Signed-off-by: koushiro <koushiro.cqx@gmail.com>

* Fix format

Signed-off-by: koushiro <koushiro.cqx@gmail.com>
This commit is contained in:
Qinxuan Chen
2021-11-19 06:08:17 +08:00
committed by GitHub
parent 78e60cbc4f
commit 69478639b3
23 changed files with 265 additions and 191 deletions
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substrate/bin/node-template/pallets/template/src/lib.rs
+1 -1
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@@ -16,7 +16,7 @@ mod benchmarking;
#[frame_support::pallet]
pub mod pallet {
use frame_support::{dispatch::DispatchResult, pallet_prelude::*};
use frame_support::pallet_prelude::*;
use frame_system::pallet_prelude::*;
/// Configure the pallet by specifying the parameters and types on which it depends.
substrate/frame/assets/README.md
+29 -21
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@@ -69,35 +69,43 @@ Import the Assets module and types and derive your runtime's configuration trait
```rust
use pallet_assets as assets;
use frame_support::{decl_module, dispatch, ensure};
use frame_system::ensure_signed;
use sp_runtime::ArithmeticError;
pub trait Config: assets::Config { }
#[frame_support::pallet]
pub mod pallet {
use super::*;
use frame_support::pallet_prelude::*;
use frame_system::pallet_prelude::*;
decl_module! {
pub struct Module<T: Config> for enum Call where origin: T::Origin {
pub fn issue_token_airdrop(origin) -> dispatch::DispatchResult {
let sender = ensure_signed(origin).map_err(|e| e.as_str())?;
#[pallet::pallet]
pub struct Pallet<T>(_);
const ACCOUNT_ALICE: u64 = 1;
const ACCOUNT_BOB: u64 = 2;
const COUNT_AIRDROP_RECIPIENTS: u64 = 2;
const TOKENS_FIXED_SUPPLY: u64 = 100;
#[pallet::config]
pub trait Config: frame_system::Config + assets::Config {}
ensure!(!COUNT_AIRDROP_RECIPIENTS.is_zero(), ArithmeticError::DivisionByZero);
#[pallet::call]
impl<T: Config> Pallet<T> {
pub fn issue_token_airdrop(origin: OriginFor<T>) -> DispatchResult {
let sender = ensure_signed(origin)?;
let asset_id = Self::next_asset_id();
const ACCOUNT_ALICE: u64 = 1;
const ACCOUNT_BOB: u64 = 2;
const COUNT_AIRDROP_RECIPIENTS: u64 = 2;
const TOKENS_FIXED_SUPPLY: u64 = 100;
<NextAssetId<T>>::mutate(|asset_id| *asset_id += 1);
<Balances<T>>::insert((asset_id, &ACCOUNT_ALICE), TOKENS_FIXED_SUPPLY / COUNT_AIRDROP_RECIPIENTS);
<Balances<T>>::insert((asset_id, &ACCOUNT_BOB), TOKENS_FIXED_SUPPLY / COUNT_AIRDROP_RECIPIENTS);
<TotalSupply<T>>::insert(asset_id, TOKENS_FIXED_SUPPLY);
ensure!(!COUNT_AIRDROP_RECIPIENTS.is_zero(), ArithmeticError::DivisionByZero);
Self::deposit_event(RawEvent::Issued(asset_id, sender, TOKENS_FIXED_SUPPLY));
Ok(())
}
}
let asset_id = Self::next_asset_id();
<NextAssetId<T>>::mutate(|asset_id| *asset_id += 1);
<Balances<T>>::insert((asset_id, &ACCOUNT_ALICE), TOKENS_FIXED_SUPPLY / COUNT_AIRDROP_RECIPIENTS);
<Balances<T>>::insert((asset_id, &ACCOUNT_BOB), TOKENS_FIXED_SUPPLY / COUNT_AIRDROP_RECIPIENTS);
<TotalSupply<T>>::insert(asset_id, TOKENS_FIXED_SUPPLY);
Self::deposit_event(Event::Issued(asset_id, sender, TOKENS_FIXED_SUPPLY));
Ok(())
}
}
}
```
substrate/frame/assets/src/lib.rs
+10 -11
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@@ -140,6 +140,15 @@ mod types;
pub use types::*;
use codec::HasCompact;
use scale_info::TypeInfo;
use sp_runtime::{
traits::{
AtLeast32BitUnsigned, Bounded, CheckedAdd, CheckedSub, Saturating, StaticLookup, Zero,
},
ArithmeticError, TokenError,
};
use sp_std::{borrow::Borrow, convert::TryInto, prelude::*};
use frame_support::{
dispatch::{DispatchError, DispatchResult},
ensure,
@@ -151,16 +160,6 @@ use frame_support::{
},
};
use frame_system::Config as SystemConfig;
use sp_runtime::{
traits::{
AtLeast32BitUnsigned, Bounded, CheckedAdd, CheckedSub, Saturating, StaticLookup, Zero,
},
ArithmeticError, TokenError,
};
use sp_std::{borrow::Borrow, prelude::*};
#[cfg(feature = "std")]
use frame_support::traits::GenesisBuild;
pub use pallet::*;
pub use weights::WeightInfo;
@@ -168,7 +167,7 @@ pub use weights::WeightInfo;
#[frame_support::pallet]
pub mod pallet {
use super::*;
use frame_support::{dispatch::DispatchResult, pallet_prelude::*};
use frame_support::pallet_prelude::*;
use frame_system::pallet_prelude::*;
#[pallet::pallet]
substrate/frame/assets/src/mock.rs
+1 -1
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@@ -20,7 +20,7 @@
use super::*;
use crate as pallet_assets;
use frame_support::{construct_runtime, parameter_types};
use frame_support::{construct_runtime, parameter_types, traits::GenesisBuild};
use sp_core::H256;
use sp_runtime::{
testing::Header,
substrate/frame/collective/src/tests.rs
+1 -2
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@@ -52,9 +52,8 @@ mod mock_democracy {
pub use pallet::*;
#[frame_support::pallet]
pub mod pallet {
use frame_support::{pallet_prelude::*, traits::EnsureOrigin};
use frame_support::pallet_prelude::*;
use frame_system::pallet_prelude::*;
use sp_runtime::DispatchResult;
#[pallet::pallet]
#[pallet::generate_store(pub(super) trait Store)]
substrate/frame/democracy/src/lib.rs
+3 -10
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@@ -240,16 +240,9 @@ enum Releases {
#[frame_support::pallet]
pub mod pallet {
use super::*;
use frame_support::{
dispatch::DispatchResultWithPostInfo,
pallet_prelude::*,
traits::EnsureOrigin,
weights::{DispatchClass, Pays},
Parameter,
};
use frame_system::{ensure_root, ensure_signed, pallet_prelude::*};
use sp_runtime::DispatchResult;
use super::{DispatchResult, *};
use frame_support::pallet_prelude::*;
use frame_system::pallet_prelude::*;
#[pallet::pallet]
#[pallet::generate_store(pub(super) trait Store)]
substrate/frame/im-online/README.md
+20 -12
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@@ -26,21 +26,29 @@ It is submitted as an Unsigned Transaction via off-chain workers.
## Usage
```rust
use frame_support::{decl_module, dispatch};
use frame_system::ensure_signed;
use pallet_im_online::{self as im_online};
pub trait Config: im_online::Config {}
#[frame_support::pallet]
pub mod pallet {
use super::*;
use frame_support::pallet_prelude::*;
use frame_system::pallet_prelude::*;
decl_module! {
pub struct Module<T: Config> for enum Call where origin: T::Origin {
#[weight = 0]
pub fn is_online(origin, authority_index: u32) -> dispatch::DispatchResult {
let _sender = ensure_signed(origin)?;
let _is_online = <im_online::Module<T>>::is_online(authority_index);
Ok(())
}
}
#[pallet::pallet]
pub struct Pallet<T>(_);
#[pallet::config]
pub trait Config: frame_system::Config + im_online::Config {}
#[pallet::call]
impl<T: Config> Pallet<T> {
#[pallet::weight(0)]
pub fn is_online(origin: OriginFor<T>, authority_index: u32) -> DispatchResult {
let _sender = ensure_signed(origin)?;
let _is_online = <im_online::Pallet<T>>::is_online(authority_index);
Ok(())
}
}
}
```
substrate/frame/im-online/src/lib.rs
+20 -19
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@@ -17,12 +17,12 @@
//! # I'm online Pallet
//!
//! If the local node is a validator (i.e. contains an authority key), this module
//! If the local node is a validator (i.e. contains an authority key), this pallet
//! gossips a heartbeat transaction with each new session. The heartbeat functions
//! as a simple mechanism to signal that the node is online in the current era.
//!
//! Received heartbeats are tracked for one era and reset with each new era. The
//! module exposes two public functions to query if a heartbeat has been received
//! pallet exposes two public functions to query if a heartbeat has been received
//! in the current era or session.
//!
//! The heartbeat is a signed transaction, which was signed using the session key
@@ -43,16 +43,24 @@
//! ## Usage
//!
//! ```
//! use frame_support::{decl_module, dispatch};
//! use frame_system::ensure_signed;
//! use pallet_im_online::{self as im_online};
//!
//! pub trait Config: im_online::Config {}
//! #[frame_support::pallet]
//! pub mod pallet {
//! use super::*;
//! use frame_support::pallet_prelude::*;
//! use frame_system::pallet_prelude::*;
//!
//! decl_module! {
//! pub struct Module<T: Config> for enum Call where origin: T::Origin {
//! #[weight = 0]
//! pub fn is_online(origin, authority_index: u32) -> dispatch::DispatchResult {
//! #[pallet::pallet]
//! pub struct Pallet<T>(_);
//!
//! #[pallet::config]
//! pub trait Config: frame_system::Config + im_online::Config {}
//!
//! #[pallet::call]
//! impl<T: Config> Pallet<T> {
//! #[pallet::weight(0)]
//! pub fn is_online(origin: OriginFor<T>, authority_index: u32) -> DispatchResult {
//! let _sender = ensure_signed(origin)?;
//! let _is_online = <im_online::Pallet<T>>::is_online(authority_index);
//! Ok(())
@@ -64,7 +72,7 @@
//!
//! ## Dependencies
//!
//! This module depends on the [Session module](../pallet_session/index.html).
//! This pallet depends on the [Session pallet](../pallet_session/index.html).
// Ensure we're `no_std` when compiling for Wasm.
#![cfg_attr(not(feature = "std"), no_std)]
@@ -302,15 +310,8 @@ type OffchainResult<T, A> = Result<A, OffchainErr<<T as frame_system::Config>::B
#[frame_support::pallet]
pub mod pallet {
use super::*;
use frame_support::{pallet_prelude::*, traits::Get, Parameter};
use frame_system::{ensure_none, pallet_prelude::*};
use sp_runtime::{
traits::{MaybeSerializeDeserialize, Member},
transaction_validity::{
InvalidTransaction, TransactionPriority, TransactionSource, TransactionValidity,
ValidTransaction,
},
};
use frame_support::pallet_prelude::*;
use frame_system::pallet_prelude::*;
#[pallet::pallet]
#[pallet::generate_store(pub(super) trait Store)]
substrate/frame/lottery/src/lib.rs
+2 -2
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@@ -115,8 +115,8 @@ impl<T: Config> ValidateCall<T> for Pallet<T> {
#[frame_support::pallet]
pub mod pallet {
use super::*;
use frame_support::{pallet_prelude::*, traits::EnsureOrigin, weights::Weight, Parameter};
use frame_system::{ensure_signed, pallet_prelude::*};
use frame_support::pallet_prelude::*;
use frame_system::pallet_prelude::*;
#[pallet::pallet]
#[pallet::generate_store(pub(super) trait Store)]
substrate/frame/nicks/src/lib.rs
+2 -6
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@@ -52,12 +52,8 @@ type NegativeImbalanceOf<T> = <<T as Config>::Currency as Currency<
#[frame_support::pallet]
pub mod pallet {
use super::*;
use frame_support::{
ensure,
pallet_prelude::*,
traits::{EnsureOrigin, Get},
};
use frame_system::{ensure_signed, pallet_prelude::*};
use frame_support::pallet_prelude::*;
use frame_system::pallet_prelude::*;
#[pallet::config]
pub trait Config: frame_system::Config {
substrate/frame/node-authorization/src/lib.rs
+1 -1
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@@ -52,7 +52,7 @@ pub use weights::WeightInfo;
#[frame_support::pallet]
pub mod pallet {
use super::*;
use frame_support::{dispatch::DispatchResult, pallet_prelude::*};
use frame_support::pallet_prelude::*;
use frame_system::pallet_prelude::*;
#[pallet::pallet]
substrate/frame/randomness-collective-flip/README.md
+20 -10
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@@ -20,18 +20,28 @@ the system trait.
### Example - Get random seed for the current block
```rust
use frame_support::{decl_module, dispatch, traits::Randomness};
use frame_support::traits::Randomness;
pub trait Config: frame_system::Config {}
#[frame_support::pallet]
pub mod pallet {
use super::*;
use frame_support::pallet_prelude::*;
use frame_system::pallet_prelude::*;
decl_module! {
pub struct Module<T: Config> for enum Call where origin: T::Origin {
#[weight = 0]
pub fn random_module_example(origin) -> dispatch::DispatchResult {
let _random_value = <pallet_randomness_collective_flip::Module<T>>::random(&b"my context"[..]);
Ok(())
}
}
#[pallet::pallet]
pub struct Pallet<T>(_);
#[pallet::config]
pub trait Config: frame_system::Config + pallet_randomness_collective_flip::Config {}
#[pallet::call]
impl<T: Config> Pallet<T> {
#[pallet::weight(0)]
pub fn random_module_example(origin: OriginFor<T>) -> DispatchResult {
let _random_value = <pallet_randomness_collective_flip::Pallet<T>>::random(&b"my context"[..]);
Ok(())
}
}
}
```
substrate/frame/randomness-collective-flip/src/lib.rs
+4 -4
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@@ -15,9 +15,9 @@
// See the License for the specific language governing permissions and
// limitations under the License.
//! # Randomness Module
//! # Randomness Pallet
//!
//! The Randomness Collective Flip module provides a [`random`](./struct.Module.html#method.random)
//! The Randomness Collective Flip pallet provides a [`random`](./struct.Module.html#method.random)
//! function that generates low-influence random values based on the block hashes from the previous
//! `81` blocks. Low-influence randomness can be useful when defending against relatively weak
//! adversaries. Using this pallet as a randomness source is advisable primarily in low-security
@@ -31,7 +31,7 @@
//!
//! ### Prerequisites
//!
//! Import the Randomness Collective Flip module and derive your module's configuration trait from
//! Import the Randomness Collective Flip pallet and derive your pallet's configuration trait from
//! the system trait.
//!
//! ### Example - Get random seed for the current block
@@ -41,9 +41,9 @@
//!
//! #[frame_support::pallet]
//! pub mod pallet {
//! use super::*;
//! use frame_support::pallet_prelude::*;
//! use frame_system::pallet_prelude::*;
//! use super::*;
//!
//! #[pallet::pallet]
//! #[pallet::generate_store(pub(super) trait Store)]
substrate/frame/recovery/src/lib.rs
+2 -2
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@@ -206,8 +206,8 @@ pub struct RecoveryConfig<BlockNumber, Balance, AccountId> {
#[frame_support::pallet]
pub mod pallet {
use super::*;
use frame_support::{ensure, pallet_prelude::*, traits::Get, Parameter};
use frame_system::{ensure_root, ensure_signed, pallet_prelude::*};
use frame_support::pallet_prelude::*;
use frame_system::pallet_prelude::*;
use sp_runtime::ArithmeticError;
#[pallet::pallet]
substrate/frame/scored-pool/README.md
+22 -15
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@@ -37,26 +37,33 @@ by the next highest scoring candidate in the pool, if available.
## Usage
```rust
use frame_support::{decl_module, dispatch};
use frame_system::ensure_signed;
use pallet_scored_pool::{self as scored_pool};
pub trait Config: scored_pool::Config {}
#[frame_support::pallet]
pub mod pallet {
use super::*;
use frame_support::pallet_prelude::*;
use frame_system::pallet_prelude::*;
decl_module! {
pub struct Module<T: Config> for enum Call where origin: T::Origin {
#[weight = 0]
pub fn candidate(origin) -> dispatch::DispatchResult {
let who = ensure_signed(origin)?;
#[pallet::pallet]
pub struct Pallet<T>(_);
let _ = <scored_pool::Module<T>>::submit_candidacy(
T::Origin::from(Some(who.clone()).into())
);
Ok(())
}
}
#[pallet::config]
pub trait Config: frame_system::Config + scored_pool::Config {}
#[pallet::call]
impl<T: Config> Pallet<T> {
#[pallet::weight(0)]
pub fn candidate(origin: OriginFor<T>) -> DispatchResult {
let who = ensure_signed(origin)?;
let _ = <scored_pool::Pallet<T>>::submit_candidacy(
T::Origin::from(Some(who.clone()).into())
);
Ok(())
}
}
}
```
## Dependencies
substrate/frame/scored-pool/src/lib.rs
+17 -10
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@@ -54,16 +54,24 @@
//! ## Usage
//!
//! ```
//! use frame_support::{decl_module, dispatch};
//! use frame_system::ensure_signed;
//! use pallet_scored_pool::{self as scored_pool};
//!
//! pub trait Config: scored_pool::Config {}
//! #[frame_support::pallet]
//! pub mod pallet {
//! use super::*;
//! use frame_support::pallet_prelude::*;
//! use frame_system::pallet_prelude::*;
//!
//! decl_module! {
//! pub struct Module<T: Config> for enum Call where origin: T::Origin {
//! #[weight = 0]
//! pub fn candidate(origin) -> dispatch::DispatchResult {
//! #[pallet::pallet]
//! pub struct Pallet<T>(_);
//!
//! #[pallet::config]
//! pub trait Config: frame_system::Config + scored_pool::Config {}
//!
//! #[pallet::call]
//! impl<T: Config> Pallet<T> {
//! #[pallet::weight(0)]
//! pub fn candidate(origin: OriginFor<T>) -> DispatchResult {
//! let who = ensure_signed(origin)?;
//!
//! let _ = <scored_pool::Pallet<T>>::submit_candidacy(
@@ -116,9 +124,8 @@ enum ChangeReceiver {
#[frame_support::pallet]
pub mod pallet {
use super::*;
use frame_support::{pallet_prelude::*, traits::EnsureOrigin, weights::Weight};
use frame_system::{ensure_root, ensure_signed, pallet_prelude::*};
use sp_runtime::traits::MaybeSerializeDeserialize;
use frame_support::pallet_prelude::*;
use frame_system::pallet_prelude::*;
#[pallet::pallet]
#[pallet::generate_store(pub(super) trait Store)]
substrate/frame/staking/README.md
+16 -8
View File
@@ -133,19 +133,27 @@ The Staking module contains many public storage items and (im)mutable functions.
### Example: Rewarding a validator by id.
```rust
use frame_support::{decl_module, dispatch};
use frame_system::ensure_signed;
use pallet_staking::{self as staking};
pub trait Config: staking::Config {}
#[frame_support::pallet]
pub mod pallet {
use super::*;
use frame_support::pallet_prelude::*;
use frame_system::pallet_prelude::*;
decl_module! {
pub struct Module<T: Config> for enum Call where origin: T::Origin {
#[pallet::pallet]
pub struct Pallet<T>(_);
#[pallet::config]
pub trait Config: frame_system::Config + staking::Config {}
#[pallet::call]
impl<T: Config> Pallet<T> {
/// Reward a validator.
#[weight = 0]
pub fn reward_myself(origin) -> dispatch::DispatchResult {
#[pallet::weight(0)]
pub fn reward_myself(origin: OriginFor<T>) -> DispatchResult {
let reported = ensure_signed(origin)?;
<staking::Module<T>>::reward_by_ids(vec![(reported, 10)]);
<staking::Pallet<T>>::reward_by_ids(vec![(reported, 10)]);
Ok(())
}
}
substrate/frame/staking/src/lib.rs
+15 -7
View File
@@ -157,17 +157,25 @@
//! ### Example: Rewarding a validator by id.
//!
//! ```
//! use frame_support::{decl_module, dispatch};
//! use frame_system::ensure_signed;
//! use pallet_staking::{self as staking};
//!
//! pub trait Config: staking::Config {}
//! #[frame_support::pallet]
//! pub mod pallet {
//! use super::*;
//! use frame_support::pallet_prelude::*;
//! use frame_system::pallet_prelude::*;
//!
//! decl_module! {
//! pub struct Module<T: Config> for enum Call where origin: T::Origin {
//! #[pallet::pallet]
//! pub struct Pallet<T>(_);
//!
//! #[pallet::config]
//! pub trait Config: frame_system::Config + staking::Config {}
//!
//! #[pallet::call]
//! impl<T: Config> Pallet<T> {
//! /// Reward a validator.
//! #[weight = 0]
//! pub fn reward_myself(origin) -> dispatch::DispatchResult {
//! #[pallet::weight(0)]
//! pub fn reward_myself(origin: OriginFor<T>) -> DispatchResult {
//! let reported = ensure_signed(origin)?;
//! <staking::Pallet<T>>::reward_by_ids(vec![(reported, 10)]);
//! Ok(())
substrate/frame/sudo/README.md
+14 -7
View File
@@ -35,15 +35,22 @@ Learn more about privileged functions and `Root` origin in the [`Origin`] type d
This is an example of a module that exposes a privileged function:
```rust
use frame_support::{decl_module, dispatch};
use frame_system::ensure_root;
#[frame_support::pallet]
pub mod pallet {
use super::*;
use frame_support::pallet_prelude::*;
use frame_system::pallet_prelude::*;
pub trait Config: frame_system::Config {}
#[pallet::pallet]
pub struct Pallet<T>(_);
decl_module! {
pub struct Module<T: Config> for enum Call where origin: T::Origin {
#[weight = 0]
pub fn privileged_function(origin) -> dispatch::DispatchResult {
#[pallet::config]
pub trait Config: frame_system::Config {}
#[pallet::call]
impl<T: Config> Pallet<T> {
#[pallet::weight(0)]
pub fn privileged_function(origin: OriginFor<T>) -> DispatchResult {
ensure_root(origin)?;
// do something...
substrate/frame/sudo/src/lib.rs
+7 -8
View File
@@ -52,28 +52,27 @@
//! This is an example of a pallet that exposes a privileged function:
//!
//! ```
//!
//! #[frame_support::pallet]
//! pub mod logger {
//! pub mod pallet {
//! use super::*;
//! use frame_support::pallet_prelude::*;
//! use frame_system::pallet_prelude::*;
//! use super::*;
//!
//! #[pallet::pallet]
//! pub struct Pallet<T>(_);
//!
//! #[pallet::config]
//! pub trait Config: frame_system::Config {}
//!
//! #[pallet::pallet]
//! pub struct Pallet<T>(PhantomData<T>);
//!
//! #[pallet::call]
//! impl<T: Config> Pallet<T> {
//! #[pallet::weight(0)]
//! pub fn privileged_function(origin: OriginFor<T>) -> DispatchResultWithPostInfo {
//! pub fn privileged_function(origin: OriginFor<T>) -> DispatchResult {
//! ensure_root(origin)?;
//!
//! // do something...
//!
//! Ok(().into())
//! Ok(())
//! }
//! }
//! }
substrate/frame/system/README.md
+20 -13
View File
@@ -54,21 +54,28 @@ Import the System module and derive your module's configuration trait from the s
### Example - Get extrinsic count and parent hash for the current block
```rust
use frame_support::{decl_module, dispatch};
use frame_system::{self as system, ensure_signed};
#[frame_support::pallet]
pub mod pallet {
use super::*;
use frame_support::pallet_prelude::*;
use frame_system::pallet_prelude::*;
pub trait Config: system::Config {}
#[pallet::config]
pub trait Config: frame_system::Config {}
decl_module! {
pub struct Module<T: Config> for enum Call where origin: T::Origin {
#[weight = 0]
pub fn system_module_example(origin) -> dispatch::DispatchResult {
let _sender = ensure_signed(origin)?;
let _extrinsic_count = <system::Pallet<T>>::extrinsic_count();
let _parent_hash = <system::Pallet<T>>::parent_hash();
Ok(())
}
}
#[pallet::pallet]
pub struct Pallet<T>(_);
#[pallet::call]
impl<T: Config> Pallet<T> {
#[pallet::weight(0)]
pub fn system_module_example(origin: OriginFor<T>) -> DispatchResult {
let _sender = ensure_signed(origin)?;
let _extrinsic_count = <system::Pallet<T>>::extrinsic_count();
let _parent_hash = <system::Pallet<T>>::parent_hash();
Ok(())
}
}
}
```
substrate/frame/timestamp/README.md
+21 -12
View File
@@ -45,20 +45,29 @@ trait from the timestamp trait.
### Get current timestamp
```rust
use frame_support::{decl_module, dispatch};
use frame_system::ensure_signed;
use pallet_timestamp::{self as timestamp};
pub trait Config: timestamp::Config {}
#[frame_support::pallet]
pub mod pallet {
use super::*;
use frame_support::pallet_prelude::*;
use frame_system::pallet_prelude::*;
decl_module! {
pub struct Module<T: Config> for enum Call where origin: T::Origin {
#[weight = 0]
pub fn get_time(origin) -> dispatch::DispatchResult {
let _sender = ensure_signed(origin)?;
let _now = <timestamp::Module<T>>::get();
Ok(())
}
}
#[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(())
}
}
}
```
substrate/frame/timestamp/src/lib.rs
+17 -9
View File
@@ -64,18 +64,26 @@
//! ### Get current timestamp
//!
//! ```
//! use frame_support::{decl_module, dispatch};
//! # use pallet_timestamp as timestamp;
//! use frame_system::ensure_signed;
//! use pallet_timestamp::{self as timestamp};
//!
//! pub trait Config: timestamp::Config {}
//! #[frame_support::pallet]
//! pub mod pallet {
//! use super::*;
//! use frame_support::pallet_prelude::*;
//! use frame_system::pallet_prelude::*;
//!
//! decl_module! {
//! pub struct Module<T: Config> for enum Call where origin: T::Origin {
//! #[weight = 0]
//! pub fn get_time(origin) -> dispatch::DispatchResult {
//! #[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::Module<T>>::get();
//! let _now = <timestamp::Pallet<T>>::get();
//! Ok(())
//! }
//! }