git.delta.rocks / unique-network / refs/commits / 274525a86afb

79		NonfungibleItemsHaveNoAmount,79		NonfungibleItemsHaveNoAmount,
80		/// Unable to burn NFT with children80		/// Unable to burn NFT with children
81		CantBurnNftWithChildren,81		CantBurnNftWithChildren,
82		/// Unable to burn a collection containing NFTs that have children
83		CantBurnCollectionWithNestedTokens
82	}84	}
8385
84	#[pallet::config]86	#[pallet::config]
293	) -> DispatchResult {295	) -> DispatchResult {
294		let id = collection.id;296		let id = collection.id;
297
298		if Self::collection_has_nested_tokens(id) {
299			return Err(<Error<T>>::CantBurnCollectionWithNestedTokens.into());
300		}
295301
296		// =========302		// =========
297303
966		);972		);
967	}973	}
974
975	fn collection_has_nested_tokens(collection_id: CollectionId) -> bool {
976		<TokenChildren<T>>::iter_prefix((collection_id,)).next().is_some()
977	}
968978
969	fn token_has_children(collection_id: CollectionId, token_id: TokenId) -> bool {979	fn token_has_children(collection_id: CollectionId, token_id: TokenId) -> bool {
970		<TokenChildren<T>>::iter_prefix((collection_id, token_id)).next().is_some()980		<TokenChildren<T>>::iter_prefix((collection_id, token_id)).next().is_some()