mirror of
https://github.com/pezkuwichain/pezkuwi-subxt.git
synced 2026-05-07 06:08:03 +00:00
Arkadiy Paronyan
781cd7aac5
* Remark storage * Fixed benches * Update frame/remark/src/lib.rs Co-authored-by: Bastian Köcher <bkchr@users.noreply.github.com> * Fixed build * Fixed build Co-authored-by: Bastian Köcher <bkchr@users.noreply.github.com>
86 lines
2.6 KiB
Rust
86 lines
2.6 KiB
Rust
// This file is part of Substrate.
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// Copyright (C) 2017-2022 Parity Technologies (UK) Ltd.
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// SPDX-License-Identifier: Apache-2.0
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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//! Remark storage pallet. Indexes remarks and stores them off chain.
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// Ensure we're `no_std` when compiling for Wasm.
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#![cfg_attr(not(feature = "std"), no_std)]
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mod benchmarking;
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pub mod weights;
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#[cfg(test)]
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mod mock;
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#[cfg(test)]
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mod tests;
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use sp_std::prelude::*;
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// Re-export pallet items so that they can be accessed from the crate namespace.
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pub use pallet::*;
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pub use weights::WeightInfo;
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#[frame_support::pallet]
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pub mod pallet {
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use super::*;
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use frame_support::pallet_prelude::*;
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use frame_system::pallet_prelude::*;
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#[pallet::config]
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pub trait Config: frame_system::Config {
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/// The overarching event type.
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type Event: From<Event<Self>> + IsType<<Self as frame_system::Config>::Event>;
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/// Weight information for extrinsics in this pallet.
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type WeightInfo: WeightInfo;
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}
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#[pallet::error]
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pub enum Error<T> {
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/// Attempting to store empty data.
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Empty,
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/// Attempted to call `store` outside of block execution.
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BadContext,
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}
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#[pallet::pallet]
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#[pallet::without_storage_info]
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pub struct Pallet<T>(_);
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#[pallet::call]
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impl<T: Config> Pallet<T> {
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/// Index and store data off chain.
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#[pallet::weight(T::WeightInfo::store(remark.len() as u32))]
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pub fn store(origin: OriginFor<T>, remark: Vec<u8>) -> DispatchResultWithPostInfo {
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ensure!(!remark.is_empty(), Error::<T>::Empty);
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let sender = ensure_signed(origin)?;
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let content_hash = sp_io::hashing::blake2_256(&remark);
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let extrinsic_index = <frame_system::Pallet<T>>::extrinsic_index()
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.ok_or_else(|| Error::<T>::BadContext)?;
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sp_io::transaction_index::index(extrinsic_index, remark.len() as u32, content_hash);
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Self::deposit_event(Event::Stored { sender, content_hash: content_hash.into() });
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Ok(().into())
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}
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}
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#[pallet::event]
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#[pallet::generate_deposit(pub(super) fn deposit_event)]
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pub enum Event<T: Config> {
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/// Stored data off chain.
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Stored { sender: T::AccountId, content_hash: sp_core::H256 },
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}
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}
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