Add slashing events to elections-phragmen. (paritytech#7543)

* Add slashing events to elections-phragmen. * Fix build * Apply suggestions from code review * Update frame/elections-phragmen/src/lib.rs * Update frame/elections-phragmen/src/lib.rs Co-authored-by: Guillaume Thiolliere <[email protected]> Co-authored-by: Guillaume Thiolliere <[email protected]>
shamb0 · Nov 21, 2020 · 272077c · 272077c
1 parent 385476c
commit 272077c
Showing 1 changed file with 6 additions and 0 deletions.
diff --git a/frame/elections-phragmen/src/lib.rs b/frame/elections-phragmen/src/lib.rs
@@ -682,6 +682,10 @@ decl_event!(
 		/// A \[member\] has been removed. This should always be followed by either `NewTerm` or
 		/// `EmptyTerm`.
 		MemberKicked(AccountId),
+		/// A candidate was slashed due to failing to obtain a seat as member or runner-up
+		CandidateSlashed(AccountId, Balance),
+		/// A seat holder (member or runner-up) was slashed due to failing to retaining their position.
+		SeatHolderSlashed(AccountId, Balance),
 		/// A \[member\] has renounced their candidacy.
 		MemberRenounced(AccountId),
 		/// A voter was reported with the the report being successful or not.
@@ -995,13 +999,15 @@ impl<T: Trait> Module<T> {
 					new_runners_up_ids_sorted.binary_search(&c).is_err()
 				{
 					let (imbalance, _) = T::Currency::slash_reserved(&c, T::CandidacyBond::get());
+					Self::deposit_event(RawEvent::CandidateSlashed(c, T::CandidacyBond::get()));
 					T::LoserCandidate::on_unbalanced(imbalance);
 				}
 			});
 
 			// Burn outgoing bonds
 			to_burn_bond.into_iter().for_each(|x| {
 				let (imbalance, _) = T::Currency::slash_reserved(&x, T::CandidacyBond::get());
+				Self::deposit_event(RawEvent::SeatHolderSlashed(x, T::CandidacyBond::get()));
 				T::LoserCandidate::on_unbalanced(imbalance);
 			});