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Add Score to Bags List (#11357)

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* Add Score to Bags List

* fix ordering

* make compile

* in progress migration

* make migration compile

* remove old check

* remove runtime specific migration

* fix warning

* Apply suggestions from code review

Co-authored-by: Kian Paimani <5588131+kianenigma@users.noreply.github.com>

* improve migration

* fix

* fix merge

* fmt

* Update migrations.rs

Co-authored-by: Kian Paimani <5588131+kianenigma@users.noreply.github.com>
This commit is contained in:
Shawn Tabrizi
2022-05-19 12:40:31 -04:00
committed by GitHub
parent 807a95230b
commit 927019a734
9 changed files with 291 additions and 107 deletions
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substrate/frame/election-provider-support/src/lib.rs
+27 -7
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@@ -168,15 +168,12 @@
pub mod onchain;
pub mod traits;
#[cfg(feature = "std")]
use codec::{Decode, Encode};
use frame_support::{weights::Weight, BoundedVec, RuntimeDebug};
use sp_runtime::traits::{Bounded, Saturating, Zero};
use sp_std::{fmt::Debug, prelude::*};
/// Re-export the solution generation macro.
pub use frame_election_provider_solution_type::generate_solution_type;
pub use frame_support::traits::Get;
pub use frame_support::{traits::Get, weights::Weight, BoundedVec, RuntimeDebug};
/// Re-export some type as they are used in the interface.
pub use sp_arithmetic::PerThing;
pub use sp_npos_elections::{
@@ -223,7 +220,7 @@ impl<T> __OrInvalidIndex<T> for Option<T> {
/// making it fast to repeatedly encode into a `SolutionOf<T>`. This property turns out
/// to be important when trimming for solution length.
#[derive(RuntimeDebug, Clone, Default)]
#[cfg_attr(feature = "std", derive(PartialEq, Eq, Encode, Decode))]
#[cfg_attr(feature = "std", derive(PartialEq, Eq, codec::Encode, codec::Decode))]
pub struct IndexAssignment<VoterIndex, TargetIndex, P: PerThing> {
/// Index of the voter among the voters list.
pub who: VoterIndex,
@@ -467,6 +464,29 @@ pub trait SortedListProvider<AccountId> {
/// Returns `Ok(())` iff it successfully updates an item, an `Err(_)` otherwise.
fn on_update(id: &AccountId, score: Self::Score) -> Result<(), Self::Error>;
/// Get the score of `id`.
fn get_score(id: &AccountId) -> Result<Self::Score, Self::Error>;
/// Same as `on_update`, but incorporate some increased score.
fn on_increase(id: &AccountId, additional: Self::Score) -> Result<(), Self::Error> {
let old_score = Self::get_score(id)?;
let new_score = old_score.saturating_add(additional);
Self::on_update(id, new_score)
}
/// Same as `on_update`, but incorporate some decreased score.
///
/// If the new score of the item is `Zero`, it is removed.
fn on_decrease(id: &AccountId, decreased: Self::Score) -> Result<(), Self::Error> {
let old_score = Self::get_score(id)?;
let new_score = old_score.saturating_sub(decreased);
if new_score.is_zero() {
Self::on_remove(id)
} else {
Self::on_update(id, new_score)
}
}
/// Hook for removing am id from the list.
///
/// Returns `Ok(())` iff it successfully removes an item, an `Err(_)` otherwise.
@@ -504,7 +524,7 @@ pub trait SortedListProvider<AccountId> {
}
}
/// Something that can provide the `VoteWeight` of an account. Similar to [`ElectionProvider`] and
/// Something that can provide the `Score` of an account. Similar to [`ElectionProvider`] and
/// [`ElectionDataProvider`], this should typically be implementing by whoever is supposed to *use*
/// `SortedListProvider`.
pub trait ScoreProvider<AccountId> {
@@ -513,7 +533,7 @@ pub trait ScoreProvider<AccountId> {
/// Get the current `Score` of `who`.
fn score(who: &AccountId) -> Self::Score;
/// For tests and benchmarks, set the `VoteWeight`.
/// For tests and benchmarks, set the `score`.
#[cfg(any(feature = "runtime-benchmarks", test))]
fn set_score_of(_: &AccountId, _: Self::Score) {}
}