From 84d6342cd26f1c2427558477fa1586319ce14677 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Bastian=20K=C3=B6cher?= <git@kchr.de>
Date: Tue, 19 Dec 2023 17:17:14 +0100
Subject: [PATCH] pallet-uniques/nfts: Small optimizations (#2754)

Use `contains_key` to not require decoding the actual value.
---
 substrate/frame/nfts/src/features/transfer.rs | 4 ++--
 substrate/frame/uniques/src/lib.rs            | 4 ++--
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/substrate/frame/nfts/src/features/transfer.rs b/substrate/frame/nfts/src/features/transfer.rs
index ac73d283ee..bba834483e 100644
--- a/substrate/frame/nfts/src/features/transfer.rs
+++ b/substrate/frame/nfts/src/features/transfer.rs
@@ -173,8 +173,8 @@ impl<T: Config<I>, I: 'static> Pallet<T, I> {
 		who: T::AccountId,
 		maybe_collection: Option<T::CollectionId>,
 	) -> DispatchResult {
-		let old = OwnershipAcceptance::<T, I>::get(&who);
-		match (old.is_some(), maybe_collection.is_some()) {
+		let exists = OwnershipAcceptance::<T, I>::contains_key(&who);
+		match (exists, maybe_collection.is_some()) {
 			(false, true) => {
 				frame_system::Pallet::<T>::inc_consumers(&who)?;
 			},
diff --git a/substrate/frame/uniques/src/lib.rs b/substrate/frame/uniques/src/lib.rs
index 253a318e47..f7cc6b044d 100644
--- a/substrate/frame/uniques/src/lib.rs
+++ b/substrate/frame/uniques/src/lib.rs
@@ -1433,8 +1433,8 @@ pub mod pallet {
 			maybe_collection: Option<T::CollectionId>,
 		) -> DispatchResult {
 			let who = ensure_signed(origin)?;
-			let old = OwnershipAcceptance::<T, I>::get(&who);
-			match (old.is_some(), maybe_collection.is_some()) {
+			let exists = OwnershipAcceptance::<T, I>::contains_key(&who);
+			match (exists, maybe_collection.is_some()) {
 				(false, true) => {
 					frame_system::Pallet::<T>::inc_consumers(&who)?;
 				},