mirror of
https://github.com/pezkuwichain/pezkuwi-subxt.git
synced 2026-05-07 04:58:01 +00:00
Tomasz Drwięga
8778ca7dc8
* Rename: Phase 1. * Unify codec. * Fixing: Phase 2 * Fixing: Phase 3. * Fixing: Phase 4. * Fixing: Phase 5. * Fixing: Phase 6. * Fixing: Phase 7. * Fixing: Phase 8. Tests * Fixing: Phase 9. Tests!!! * Fixing: Phase 10. Moar tests! * Finally done! * More fixes. * Rename primitives:: to sp_core:: * Apply renames in finality-grandpa. * Fix benches. * Fix benches 2. * Revert node-template. * Fix frame-system in our modules.
89 lines
2.7 KiB
Rust
89 lines
2.7 KiB
Rust
// Copyright 2019 Parity Technologies (UK) Ltd.
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// This file is part of Substrate.
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// Substrate is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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// Substrate is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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// You should have received a copy of the GNU General Public License
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// along with Substrate. If not, see <http://www.gnu.org/licenses/>.
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//! Storage migrations for srml-staking.
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/// Indicator of a version of a storage layout.
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pub type VersionNumber = u32;
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// the current expected version of the storage
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pub const CURRENT_VERSION: VersionNumber = 1;
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#[cfg(any(test, feature = "migrate"))]
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mod inner {
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use crate::{Store, Module, Trait};
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use frame_support::{StorageLinkedMap, StorageValue};
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use sp_std::vec::Vec;
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use super::{CURRENT_VERSION, VersionNumber};
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// the minimum supported version of the migration logic.
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const MIN_SUPPORTED_VERSION: VersionNumber = 0;
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// migrate storage from v0 to v1.
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//
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// this upgrades the `Nominators` linked_map value type from `Vec<T::AccountId>` to
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// `Option<Nominations<T::AccountId>>`
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pub fn to_v1<T: Trait>(version: &mut VersionNumber) {
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if *version != 0 { return }
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*version += 1;
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let now = <Module<T>>::current_era();
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let res = <Module<T> as Store>::Nominators::translate::<T::AccountId, Vec<T::AccountId>, _, _>(
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|key| key,
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|targets| crate::Nominations {
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targets,
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submitted_in: now,
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suppressed: false,
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},
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);
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if let Err(e) = res {
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frame_support::print("Encountered error in migration of Staking::Nominators map.");
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if e.is_none() {
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frame_support::print("Staking::Nominators map reinitialized");
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}
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}
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frame_support::print("Finished migrating Staking storage to v1.");
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}
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pub(super) fn perform_migrations<T: Trait>() {
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<Module<T> as Store>::StorageVersion::mutate(|version| {
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if *version < MIN_SUPPORTED_VERSION {
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frame_support::print("Cannot migrate staking storage because version is less than\
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minimum.");
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frame_support::print(*version);
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return
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}
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if *version == CURRENT_VERSION { return }
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to_v1::<T>(version);
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});
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}
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}
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#[cfg(not(any(test, feature = "migrate")))]
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mod inner {
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pub(super) fn perform_migrations<T>() { }
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}
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/// Perform all necessary storage migrations to get storage into the expected stsate for current
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/// logic. No-op if fully upgraded.
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pub(crate) fn perform_migrations<T: crate::Trait>() {
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inner::perform_migrations::<T>();
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}
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