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Store validator self-vote in bags-list, and allow them to be trimmed for election (#10821)

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* Implement the new validator-in-bags-list scenario + migration

* Apply suggestions from code review

Co-authored-by: Zeke Mostov <z.mostov@gmail.com>

* some review comments

* guard the migration

* some review comments

* Fix tests 🤦‍♂️

* Fix build

* fix weight_of_fn

* reformat line width

* make const

* use weight of fn cached

* SortedListProvider -> VoterList

* Fix all build and docs

* check post migration

Co-authored-by: Zeke Mostov <z.mostov@gmail.com>
This commit is contained in:
Kian Paimani
2022-03-23 14:17:26 +00:00
committed by GitHub
parent e0cef34921
commit 661d0ea5bb
17 changed files with 317 additions and 216 deletions
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substrate/frame/bags-list/remote-tests/src/migration.rs
+5 -6
View File
@@ -17,7 +17,6 @@
//! Test to check the migration of the voter bag.
use crate::{RuntimeT, LOG_TARGET};
use frame_election_provider_support::SortedListProvider;
use frame_support::traits::PalletInfoAccess;
use pallet_staking::Nominators;
use remote_externalities::{Builder, Mode, OnlineConfig};
@@ -45,16 +44,16 @@ pub async fn execute<Runtime: RuntimeT, Block: BlockT + DeserializeOwned>(
let pre_migrate_nominator_count = <Nominators<Runtime>>::iter().count() as u32;
log::info!(target: LOG_TARGET, "Nominator count: {}", pre_migrate_nominator_count);
// run the actual migration,
let moved = <Runtime as pallet_staking::Config>::SortedListProvider::unsafe_regenerate(
use frame_election_provider_support::SortedListProvider;
// run the actual migration
let moved = <Runtime as pallet_staking::Config>::VoterList::unsafe_regenerate(
pallet_staking::Nominators::<Runtime>::iter().map(|(n, _)| n),
pallet_staking::Pallet::<Runtime>::weight_of_fn(),
);
log::info!(target: LOG_TARGET, "Moved {} nominators", moved);
let voter_list_len =
<Runtime as pallet_staking::Config>::SortedListProvider::iter().count() as u32;
let voter_list_count = <Runtime as pallet_staking::Config>::SortedListProvider::count();
let voter_list_len = <Runtime as pallet_staking::Config>::VoterList::iter().count() as u32;
let voter_list_count = <Runtime as pallet_staking::Config>::VoterList::count();
// and confirm it is equal to the length of the `VoterList`.
assert_eq!(pre_migrate_nominator_count, voter_list_len);
assert_eq!(pre_migrate_nominator_count, voter_list_count);