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// This file is part of Substrate.
// Copyright (C) Parity Technologies (UK) Ltd.
// SPDX-License-Identifier: Apache-2.0
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// Migrations for Multisig Pallet
use super::*;
use frame_support::{
traits::{GetStorageVersion, OnRuntimeUpgrade, WrapperKeepOpaque},
Identity,
};
#[cfg(feature = "try-runtime")]
use frame_support::ensure;
pub mod v1 {
type OpaqueCall<T> = WrapperKeepOpaque<<T as Config>::RuntimeCall>;
#[frame_support::storage_alias]
type Calls<T: Config> = StorageMap<
Pallet<T>,
[u8; 32],
(OpaqueCall<T>, <T as frame_system::Config>::AccountId, BalanceOf<T>),
>;
pub struct MigrateToV1<T>(core::marker::PhantomData<T>);
impl<T: Config> OnRuntimeUpgrade for MigrateToV1<T> {
fn pre_upgrade() -> Result<Vec<u8>, sp_runtime::TryRuntimeError> {
log!(info, "Number of calls to refund and delete: {}", Calls::<T>::iter().count());
Ok(Vec::new())
}
fn on_runtime_upgrade() -> Weight {
use sp_runtime::Saturating;
let current = Pallet::<T>::in_code_storage_version();
let onchain = Pallet::<T>::on_chain_storage_version();
if onchain > 0 {
log!(info, "MigrateToV1 should be removed");
return T::DbWeight::get().reads(1)
let mut call_count = 0u64;
Calls::<T>::drain().for_each(|(_call_hash, (_data, caller, deposit))| {
T::Currency::unreserve(&caller, deposit);
call_count.saturating_inc();
});
current.put::<Pallet<T>>();
T::DbWeight::get().reads_writes(
// Reads: Get Calls + Get Version
call_count.saturating_add(1),
// Writes: Drain Calls + Unreserves + Set version
call_count.saturating_mul(2).saturating_add(1),
)
fn post_upgrade(_state: Vec<u8>) -> Result<(), sp_runtime::TryRuntimeError> {
ensure!(
Calls::<T>::iter().count() == 0,
"there are some dangling calls that need to be destroyed and refunded"
);
Ok(())