git.delta.rocks / unique-network / refs/commits / ae0e886a6664

1//2// This file is subject to the terms and conditions defined in3// file 'LICENSE', which is part of this source code package.4//56#![recursion_limit = "1024"]7#![cfg_attr(not(feature = "std"), no_std)]8#![allow(9	clippy::too_many_arguments,10	clippy::unnecessary_mut_passed,11	clippy::unused_unit12)]1314extern crate alloc;1516pub use serde::{Serialize, Deserialize};1718pub use frame_support::{19	construct_runtime, decl_module, decl_storage, decl_error,20	dispatch::DispatchResult,21	ensure, fail, parameter_types,22	traits::{23		ExistenceRequirement, Get, Imbalance, KeyOwnerProofSystem, OnUnbalanced, Randomness,24		IsSubType, WithdrawReasons,25	},26	weights::{27		constants::{BlockExecutionWeight, ExtrinsicBaseWeight, RocksDbWeight, WEIGHT_PER_SECOND},28		DispatchInfo, GetDispatchInfo, IdentityFee, Pays, PostDispatchInfo, Weight,29		WeightToFeePolynomial, DispatchClass,30	},31	StorageValue, transactional,32	pallet_prelude::DispatchResultWithPostInfo,33};34use scale_info::TypeInfo;35use frame_system::{self as system, ensure_signed};36use sp_runtime::{sp_std::prelude::Vec};37use nft_data_structs::{38	MAX_DECIMAL_POINTS, MAX_SPONSOR_TIMEOUT, MAX_TOKEN_OWNERSHIP, CUSTOM_DATA_LIMIT,39	VARIABLE_ON_CHAIN_SCHEMA_LIMIT, CONST_ON_CHAIN_SCHEMA_LIMIT, COLLECTION_ADMINS_LIMIT,40	OFFCHAIN_SCHEMA_LIMIT, FUNGIBLE_SPONSOR_TRANSFER_TIMEOUT, REFUNGIBLE_SPONSOR_TRANSFER_TIMEOUT,41	NFT_SPONSOR_TRANSFER_TIMEOUT, AccessMode, Collection, CreateItemData, CollectionLimits,42	CollectionId, CollectionMode, TokenId, SchemaVersion, SponsorshipState, MetaUpdatePermission,43};44use pallet_common::{45	account::CrossAccountId, CollectionHandle, IsAdmin, Pallet as PalletCommon,46	Error as CommonError, CommonWeightInfo, Allowlist,47};48use pallet_refungible::{Pallet as PalletRefungible, RefungibleHandle};49use pallet_fungible::{Pallet as PalletFungible, FungibleHandle};50use pallet_nonfungible::{Pallet as PalletNonfungible, NonfungibleHandle};5152#[cfg(test)]53mod mock;5455#[cfg(test)]56mod tests;5758mod eth;59mod sponsorship;60pub use sponsorship::NftSponsorshipHandler;61pub use eth::sponsoring::NftEthSponsorshipHandler;6263pub use eth::NftErcSupport;6465pub mod common;66use common::CommonWeights;67pub mod dispatch;68use dispatch::dispatch_call;6970#[cfg(feature = "runtime-benchmarks")]71mod benchmarking;72pub mod weights;73use weights::WeightInfo;7475decl_error! {76	/// Error for non-fungible-token module.77	pub enum Error for Module<T: Config> {78		/// Decimal_points parameter must be lower than MAX_DECIMAL_POINTS constant, currently it is 30.79		CollectionDecimalPointLimitExceeded,80		/// This address is not set as sponsor, use setCollectionSponsor first.81		ConfirmUnsetSponsorFail,82		/// Length of items properties must be greater than 0.83		EmptyArgument,84		/// Collection limit bounds per collection exceeded85		CollectionLimitBoundsExceeded,86		/// Tried to enable permissions which are only permitted to be disabled87		OwnerPermissionsCantBeReverted,88	}89}90pub trait Config:91	system::Config92	+ pallet_evm_coder_substrate::Config93	+ pallet_common::Config94	+ pallet_nonfungible::Config95	+ pallet_refungible::Config96	+ pallet_fungible::Config97	+ Sized98	+ TypeInfo99{100	/// Weight information for extrinsics in this pallet.101	type WeightInfo: WeightInfo;102}103104type SelfWeightOf<T> = <T as Config>::WeightInfo;105106// # Used definitions107//108// ## User control levels109//110// chain-controlled - key is uncontrolled by user111//                    i.e autoincrementing index112//                    can use non-cryptographic hash113// real - key is controlled by user114//        but it is hard to generate enough colliding values, i.e owner of signed txs115//        can use non-cryptographic hash116// controlled - key is completly controlled by users117//              i.e maps with mutable keys118//              should use cryptographic hash119//120// ## User control level downgrade reasons121//122// ?1 - chain-controlled -> controlled123//      collections/tokens can be destroyed, resulting in massive holes124// ?2 - chain-controlled -> controlled125//      same as ?1, but can be only added, resulting in easier exploitation126// ?3 - real -> controlled127//      no confirmation required, so addresses can be easily generated128decl_storage! {129	trait Store for Module<T: Config> as Nft {130131		//#region Private members132		/// Used for migrations133		ChainVersion: u64;134		//#endregion135136		//#region Tokens transfer rate limit baskets137		/// (Collection id (controlled?2), who created (real))138		/// TODO: Off chain worker should remove from this map when collection gets removed139		pub CreateItemBasket get(fn create_item_basket): map hasher(blake2_128_concat) (CollectionId, T::AccountId) => T::BlockNumber;140		/// Collection id (controlled?2), token id (controlled?2)141		pub NftTransferBasket get(fn nft_transfer_basket): double_map hasher(blake2_128_concat) CollectionId, hasher(blake2_128_concat) TokenId => T::BlockNumber;142		/// Collection id (controlled?2), owning user (real)143		pub FungibleTransferBasket get(fn fungible_transfer_basket): double_map hasher(blake2_128_concat) CollectionId, hasher(twox_64_concat) T::AccountId => T::BlockNumber;144		/// Collection id (controlled?2), token id (controlled?2)145		pub ReFungibleTransferBasket get(fn refungible_transfer_basket): double_map hasher(blake2_128_concat) CollectionId, hasher(blake2_128_concat) TokenId => T::BlockNumber;146		//#endregion147148		/// Variable metadata sponsoring149		/// Collection id (controlled?2), token id (controlled?2)150		pub VariableMetaDataBasket get(fn variable_meta_data_basket): double_map hasher(blake2_128_concat) CollectionId, hasher(blake2_128_concat) TokenId => Option<T::BlockNumber> = None;151	}152}153154decl_module! {155	pub struct Module<T: Config> for enum Call156	where157		origin: T::Origin158	{159		const CollectionAdminsLimit: u64 = COLLECTION_ADMINS_LIMIT;160		type Error = Error<T>;161162		fn on_initialize(_now: T::BlockNumber) -> Weight {163			0164		}165166		/// This method creates a Collection of NFTs. Each Token may have multiple properties encoded as an array of bytes of certain length. The initial owner and admin of the collection are set to the address that signed the transaction. Both addresses can be changed later.167		///168		/// # Permissions169		///170		/// * Anyone.171		///172		/// # Arguments173		///174		/// * collection_name: UTF-16 string with collection name (limit 64 characters), will be stored as zero-terminated.175		///176		/// * collection_description: UTF-16 string with collection description (limit 256 characters), will be stored as zero-terminated.177		///178		/// * token_prefix: UTF-8 string with token prefix.179		///180		/// * mode: [CollectionMode] collection type and type dependent data.181		// returns collection ID182		#[weight = <SelfWeightOf<T>>::create_collection()]183		#[transactional]184		pub fn create_collection(origin,185								 collection_name: Vec<u16>,186								 collection_description: Vec<u16>,187								 token_prefix: Vec<u8>,188								 mode: CollectionMode) -> DispatchResult {189190			// Anyone can create a collection191			let who = ensure_signed(origin)?;192193			// Create new collection194			let new_collection = Collection::<T> {195				owner: who.clone(),196				name: collection_name,197				mode: mode.clone(),198				mint_mode: false,199				access: AccessMode::Normal,200				description: collection_description,201				token_prefix,202				offchain_schema: Vec::new(),203				schema_version: SchemaVersion::ImageURL,204				sponsorship: SponsorshipState::Disabled,205				variable_on_chain_schema: Vec::new(),206				const_on_chain_schema: Vec::new(),207				limits: Default::default(),208				meta_update_permission: Default::default(),209			};210211			let _id = match mode {212				CollectionMode::NFT => {PalletNonfungible::init_collection(new_collection)?},213				CollectionMode::Fungible(decimal_points) => {214					// check params215					ensure!(decimal_points <= MAX_DECIMAL_POINTS, Error::<T>::CollectionDecimalPointLimitExceeded);216					PalletFungible::init_collection(new_collection)?217				}218				CollectionMode::ReFungible => {219					PalletRefungible::init_collection(new_collection)?220				}221			};222223			Ok(())224		}225226		/// **DANGEROUS**: Destroys collection and all NFTs within this collection. Users irrecoverably lose their assets and may lose real money.227		///228		/// # Permissions229		///230		/// * Collection Owner.231		///232		/// # Arguments233		///234		/// * collection_id: collection to destroy.235		#[weight = <SelfWeightOf<T>>::destroy_collection()]236		#[transactional]237		pub fn destroy_collection(origin, collection_id: CollectionId) -> DispatchResult {238			let sender = T::CrossAccountId::from_sub(ensure_signed(origin)?);239240			let collection = <CollectionHandle<T>>::try_get(collection_id)?;241			collection.check_is_owner(&sender)?;242243			// =========244245			match collection.mode {246				CollectionMode::ReFungible => PalletRefungible::destroy_collection(RefungibleHandle::cast(collection), &sender)?,247				CollectionMode::Fungible(_) => PalletFungible::destroy_collection(FungibleHandle::cast(collection), &sender)?,248				CollectionMode::NFT => PalletNonfungible::destroy_collection(NonfungibleHandle::cast(collection), &sender)?,249			}250251			<NftTransferBasket<T>>::remove_prefix(collection_id, None);252			<FungibleTransferBasket<T>>::remove_prefix(collection_id, None);253			<ReFungibleTransferBasket<T>>::remove_prefix(collection_id, None);254255			<VariableMetaDataBasket<T>>::remove_prefix(collection_id, None);256257			Ok(())258		}259260		/// Add an address to white list.261		///262		/// # Permissions263		///264		/// * Collection Owner265		/// * Collection Admin266		///267		/// # Arguments268		///269		/// * collection_id.270		///271		/// * address.272		#[weight = <SelfWeightOf<T>>::add_to_white_list()]273		#[transactional]274		pub fn add_to_white_list(origin, collection_id: CollectionId, address: T::CrossAccountId) -> DispatchResult{275276			let sender = T::CrossAccountId::from_sub(ensure_signed(origin)?);277			let collection = <CollectionHandle<T>>::try_get(collection_id)?;278279			<PalletCommon<T>>::toggle_allowlist(280				&collection,281				&sender,282				&address,283				true,284			)?;285286			Ok(())287		}288289		/// Remove an address from white list.290		///291		/// # Permissions292		///293		/// * Collection Owner294		/// * Collection Admin295		///296		/// # Arguments297		///298		/// * collection_id.299		///300		/// * address.301		#[weight = <SelfWeightOf<T>>::remove_from_white_list()]302		#[transactional]303		pub fn remove_from_white_list(origin, collection_id: CollectionId, address: T::CrossAccountId) -> DispatchResult{304305			let sender = T::CrossAccountId::from_sub(ensure_signed(origin)?);306			let collection = <CollectionHandle<T>>::try_get(collection_id)?;307308			<PalletCommon<T>>::toggle_allowlist(309				&collection,310				&sender,311				&address,312				false,313			)?;314315			Ok(())316		}317318		/// Toggle between normal and white list access for the methods with access for `Anyone`.319		///320		/// # Permissions321		///322		/// * Collection Owner.323		///324		/// # Arguments325		///326		/// * collection_id.327		///328		/// * mode: [AccessMode]329		#[weight = <SelfWeightOf<T>>::set_public_access_mode()]330		#[transactional]331		pub fn set_public_access_mode(origin, collection_id: CollectionId, mode: AccessMode) -> DispatchResult332		{333			let sender = T::CrossAccountId::from_sub(ensure_signed(origin)?);334335			let mut target_collection = <CollectionHandle<T>>::try_get(collection_id)?;336			target_collection.check_is_owner(&sender)?;337338			target_collection.access = mode;339			target_collection.save()340		}341342		/// Allows Anyone to create tokens if:343		/// * White List is enabled, and344		/// * Address is added to white list, and345		/// * This method was called with True parameter346		///347		/// # Permissions348		/// * Collection Owner349		///350		/// # Arguments351		///352		/// * collection_id.353		///354		/// * mint_permission: Boolean parameter. If True, allows minting to Anyone with conditions above.355		#[weight = <SelfWeightOf<T>>::set_mint_permission()]356		#[transactional]357		pub fn set_mint_permission(origin, collection_id: CollectionId, mint_permission: bool) -> DispatchResult358		{359			let sender = T::CrossAccountId::from_sub(ensure_signed(origin)?);360361			let mut target_collection = <CollectionHandle<T>>::try_get(collection_id)?;362			target_collection.check_is_owner(&sender)?;363364			target_collection.mint_mode = mint_permission;365			target_collection.save()366		}367368		/// Change the owner of the collection.369		///370		/// # Permissions371		///372		/// * Collection Owner.373		///374		/// # Arguments375		///376		/// * collection_id.377		///378		/// * new_owner.379		#[weight = <SelfWeightOf<T>>::change_collection_owner()]380		#[transactional]381		pub fn change_collection_owner(origin, collection_id: CollectionId, new_owner: T::AccountId) -> DispatchResult {382383			let sender = T::CrossAccountId::from_sub(ensure_signed(origin)?);384385			let mut target_collection = <CollectionHandle<T>>::try_get(collection_id)?;386			target_collection.check_is_owner(&sender)?;387388			target_collection.owner = new_owner;389			target_collection.save()390		}391392		/// Adds an admin of the Collection.393		/// NFT Collection can be controlled by multiple admin addresses (some which can also be servers, for example). Admins can issue and burn NFTs, as well as add and remove other admins, but cannot change NFT or Collection ownership.394		///395		/// # Permissions396		///397		/// * Collection Owner.398		/// * Collection Admin.399		///400		/// # Arguments401		///402		/// * collection_id: ID of the Collection to add admin for.403		///404		/// * new_admin_id: Address of new admin to add.405		#[weight = <SelfWeightOf<T>>::add_collection_admin()]406		#[transactional]407		pub fn add_collection_admin(origin, collection_id: CollectionId, new_admin_id: T::CrossAccountId) -> DispatchResult {408			let sender = T::CrossAccountId::from_sub(ensure_signed(origin)?);409410			let collection = <CollectionHandle<T>>::try_get(collection_id)?;411			collection.check_is_owner_or_admin(&sender)?;412413			<IsAdmin<T>>::insert((collection_id, new_admin_id.as_sub()), true);414			Ok(())415		}416417		/// Remove admin address of the Collection. An admin address can remove itself. List of admins may become empty, in which case only Collection Owner will be able to add an Admin.418		///419		/// # Permissions420		///421		/// * Collection Owner.422		/// * Collection Admin.423		///424		/// # Arguments425		///426		/// * collection_id: ID of the Collection to remove admin for.427		///428		/// * account_id: Address of admin to remove.429		#[weight = <SelfWeightOf<T>>::remove_collection_admin()]430		#[transactional]431		pub fn remove_collection_admin(origin, collection_id: CollectionId, account_id: T::CrossAccountId) -> DispatchResult {432			let sender = T::CrossAccountId::from_sub(ensure_signed(origin)?);433434			let collection = <CollectionHandle<T>>::try_get(collection_id)?;435			collection.check_is_owner_or_admin(&sender)?;436437			<IsAdmin<T>>::remove((collection_id, account_id.as_sub()));438			Ok(())439		}440441		/// # Permissions442		///443		/// * Collection Owner444		///445		/// # Arguments446		///447		/// * collection_id.448		///449		/// * new_sponsor.450		#[weight = <SelfWeightOf<T>>::set_collection_sponsor()]451		#[transactional]452		pub fn set_collection_sponsor(origin, collection_id: CollectionId, new_sponsor: T::AccountId) -> DispatchResult {453			let sender = T::CrossAccountId::from_sub(ensure_signed(origin)?);454455			let mut target_collection = <CollectionHandle<T>>::try_get(collection_id)?;456			target_collection.check_is_owner_or_admin(&sender)?;457458			target_collection.sponsorship = SponsorshipState::Unconfirmed(new_sponsor);459			target_collection.save()460		}461462		/// # Permissions463		///464		/// * Sponsor.465		///466		/// # Arguments467		///468		/// * collection_id.469		#[weight = <SelfWeightOf<T>>::confirm_sponsorship()]470		#[transactional]471		pub fn confirm_sponsorship(origin, collection_id: CollectionId) -> DispatchResult {472			let sender = ensure_signed(origin)?;473474			let mut target_collection = <CollectionHandle<T>>::try_get(collection_id)?;475			ensure!(476				target_collection.sponsorship.pending_sponsor() == Some(&sender),477				Error::<T>::ConfirmUnsetSponsorFail478			);479480			target_collection.sponsorship = SponsorshipState::Confirmed(sender);481			target_collection.save()482		}483484		/// Switch back to pay-per-own-transaction model.485		///486		/// # Permissions487		///488		/// * Collection owner.489		///490		/// # Arguments491		///492		/// * collection_id.493		#[weight = <SelfWeightOf<T>>::remove_collection_sponsor()]494		#[transactional]495		pub fn remove_collection_sponsor(origin, collection_id: CollectionId) -> DispatchResult {496			let sender = T::CrossAccountId::from_sub(ensure_signed(origin)?);497498			let mut target_collection = <CollectionHandle<T>>::try_get(collection_id)?;499			target_collection.check_is_owner(&sender)?;500501			target_collection.sponsorship = SponsorshipState::Disabled;502			target_collection.save()503		}504505		/// This method creates a concrete instance of NFT Collection created with CreateCollection method.506		///507		/// # Permissions508		///509		/// * Collection Owner.510		/// * Collection Admin.511		/// * Anyone if512		///     * White List is enabled, and513		///     * Address is added to white list, and514		///     * MintPermission is enabled (see SetMintPermission method)515		///516		/// # Arguments517		///518		/// * collection_id: ID of the collection.519		///520		/// * owner: Address, initial owner of the NFT.521		///522		/// * data: Token data to store on chain.523		#[weight = <CommonWeights<T>>::create_item()]524		#[transactional]525		pub fn create_item(origin, collection_id: CollectionId, owner: T::CrossAccountId, data: CreateItemData) -> DispatchResultWithPostInfo {526			let sender = T::CrossAccountId::from_sub(ensure_signed(origin)?);527528			dispatch_call::<T, _>(collection_id, |d| d.create_item(sender, owner, data))529		}530531		/// This method creates multiple items in a collection created with CreateCollection method.532		///533		/// # Permissions534		///535		/// * Collection Owner.536		/// * Collection Admin.537		/// * Anyone if538		///     * White List is enabled, and539		///     * Address is added to white list, and540		///     * MintPermission is enabled (see SetMintPermission method)541		///542		/// # Arguments543		///544		/// * collection_id: ID of the collection.545		///546		/// * itemsData: Array items properties. Each property is an array of bytes itself, see [create_item].547		///548		/// * owner: Address, initial owner of the NFT.549		#[weight = <CommonWeights<T>>::create_multiple_items(items_data.len() as u32)]550		#[transactional]551		pub fn create_multiple_items(origin, collection_id: CollectionId, owner: T::CrossAccountId, items_data: Vec<CreateItemData>) -> DispatchResultWithPostInfo {552			ensure!(!items_data.is_empty(), Error::<T>::EmptyArgument);553			let sender = T::CrossAccountId::from_sub(ensure_signed(origin)?);554555			dispatch_call::<T, _>(collection_id, |d| d.create_multiple_items(sender, owner, items_data))556		}557558		// TODO! transaction weight559560		/// Set transfers_enabled value for particular collection561		///562		/// # Permissions563		///564		/// * Collection Owner.565		///566		/// # Arguments567		///568		/// * collection_id: ID of the collection.569		///570		/// * value: New flag value.571		#[weight = <SelfWeightOf<T>>::set_transfers_enabled_flag()]572		#[transactional]573		pub fn set_transfers_enabled_flag(origin, collection_id: CollectionId, value: bool) -> DispatchResult {574			let sender = T::CrossAccountId::from_sub(ensure_signed(origin)?);575			let mut target_collection = <CollectionHandle<T>>::try_get(collection_id)?;576			target_collection.check_is_owner(&sender)?;577578			// =========579580			target_collection.limits.transfers_enabled = Some(value);581			target_collection.save()582		}583584		/// Destroys a concrete instance of NFT.585		///586		/// # Permissions587		///588		/// * Collection Owner.589		/// * Collection Admin.590		/// * Current NFT Owner.591		///592		/// # Arguments593		///594		/// * collection_id: ID of the collection.595		///596		/// * item_id: ID of NFT to burn.597		#[weight = <CommonWeights<T>>::burn_item()]598		#[transactional]599		pub fn burn_item(origin, collection_id: CollectionId, item_id: TokenId, value: u128) -> DispatchResultWithPostInfo {600			let sender = T::CrossAccountId::from_sub(ensure_signed(origin)?);601602			dispatch_call::<T, _>(collection_id, |d| d.burn_item(sender, item_id, value))603		}604605		/// Destroys a concrete instance of NFT on behalf of the owner606		/// See also: [`approve`]607		///608		/// # Permissions609		///610		/// * Collection Owner.611		/// * Collection Admin.612		/// * Current NFT Owner.613		///614		/// # Arguments615		///616		/// * collection_id: ID of the collection.617		///618		/// * item_id: ID of NFT to burn.619		///620		/// * from: owner of item621		#[weight = <CommonWeights<T>>::burn_from()]622		#[transactional]623		pub fn burn_from(origin, collection_id: CollectionId, from: T::CrossAccountId, item_id: TokenId, value: u128) -> DispatchResultWithPostInfo {624			let sender = T::CrossAccountId::from_sub(ensure_signed(origin)?);625626			dispatch_call::<T, _>(collection_id, |d| d.burn_from(sender, from, item_id, value))627		}628629		/// Change ownership of the token.630		///631		/// # Permissions632		///633		/// * Collection Owner634		/// * Collection Admin635		/// * Current NFT owner636		///637		/// # Arguments638		///639		/// * recipient: Address of token recipient.640		///641		/// * collection_id.642		///643		/// * item_id: ID of the item644		///     * Non-Fungible Mode: Required.645		///     * Fungible Mode: Ignored.646		///     * Re-Fungible Mode: Required.647		///648		/// * value: Amount to transfer.649		///     * Non-Fungible Mode: Ignored650		///     * Fungible Mode: Must specify transferred amount651		///     * Re-Fungible Mode: Must specify transferred portion (between 0 and 1)652		#[weight = <CommonWeights<T>>::transfer()]653		#[transactional]654		pub fn transfer(origin, recipient: T::CrossAccountId, collection_id: CollectionId, item_id: TokenId, value: u128) -> DispatchResultWithPostInfo {655			let sender = T::CrossAccountId::from_sub(ensure_signed(origin)?);656657			dispatch_call::<T, _>(collection_id, |d| d.transfer(sender, recipient, item_id, value))658		}659660		/// Set, change, or remove approved address to transfer the ownership of the NFT.661		///662		/// # Permissions663		///664		/// * Collection Owner665		/// * Collection Admin666		/// * Current NFT owner667		///668		/// # Arguments669		///670		/// * approved: Address that is approved to transfer this NFT or zero (if needed to remove approval).671		///672		/// * collection_id.673		///674		/// * item_id: ID of the item.675		#[weight = <CommonWeights<T>>::approve()]676		#[transactional]677		pub fn approve(origin, spender: T::CrossAccountId, collection_id: CollectionId, item_id: TokenId, amount: u128) -> DispatchResultWithPostInfo {678			let sender = T::CrossAccountId::from_sub(ensure_signed(origin)?);679680			dispatch_call::<T, _>(collection_id, |d| d.approve(sender, spender, item_id, amount))681		}682683		/// Change ownership of a NFT on behalf of the owner. See Approve method for additional information. After this method executes, the approval is removed so that the approved address will not be able to transfer this NFT again from this owner.684		///685		/// # Permissions686		/// * Collection Owner687		/// * Collection Admin688		/// * Current NFT owner689		/// * Address approved by current NFT owner690		///691		/// # Arguments692		///693		/// * from: Address that owns token.694		///695		/// * recipient: Address of token recipient.696		///697		/// * collection_id.698		///699		/// * item_id: ID of the item.700		///701		/// * value: Amount to transfer.702		#[weight = <CommonWeights<T>>::transfer_from()]703		#[transactional]704		pub fn transfer_from(origin, from: T::CrossAccountId, recipient: T::CrossAccountId, collection_id: CollectionId, item_id: TokenId, value: u128 ) -> DispatchResultWithPostInfo {705			let sender = T::CrossAccountId::from_sub(ensure_signed(origin)?);706707			dispatch_call::<T, _>(collection_id, |d| d.transfer_from(sender, from, recipient, item_id, value))708		}709710		/// Set off-chain data schema.711		///712		/// # Permissions713		///714		/// * Collection Owner715		/// * Collection Admin716		///717		/// # Arguments718		///719		/// * collection_id.720		///721		/// * schema: String representing the offchain data schema.722		#[weight = <CommonWeights<T>>::set_variable_metadata(data.len() as u32)]723		#[transactional]724		pub fn set_variable_meta_data (725			origin,726			collection_id: CollectionId,727			item_id: TokenId,728			data: Vec<u8>729		) -> DispatchResultWithPostInfo {730			let sender = T::CrossAccountId::from_sub(ensure_signed(origin)?);731732			dispatch_call::<T, _>(collection_id, |d| d.set_variable_metadata(sender, item_id, data))733		}734735		/// Set meta_update_permission value for particular collection736		///737		/// # Permissions738		///739		/// * Collection Owner.740		///741		/// # Arguments742		///743		/// * collection_id: ID of the collection.744		///745		/// * value: New flag value.746		#[weight = <SelfWeightOf<T>>::set_meta_update_permission_flag()]747		#[transactional]748		pub fn set_meta_update_permission_flag(origin, collection_id: CollectionId, value: MetaUpdatePermission) -> DispatchResult {749			let sender = T::CrossAccountId::from_sub(ensure_signed(origin)?);750			let mut target_collection = <CollectionHandle<T>>::try_get(collection_id)?;751752			ensure!(753				target_collection.meta_update_permission != MetaUpdatePermission::None,754				<CommonError<T>>::MetadataFlagFrozen,755			);756			target_collection.check_is_owner(&sender)?;757758			target_collection.meta_update_permission = value;759760			target_collection.save()761		}762763		/// Set schema standard764		/// ImageURL765		/// Unique766		///767		/// # Permissions768		///769		/// * Collection Owner770		/// * Collection Admin771		///772		/// # Arguments773		///774		/// * collection_id.775		///776		/// * schema: SchemaVersion: enum777		#[weight = <SelfWeightOf<T>>::set_schema_version()]778		#[transactional]779		pub fn set_schema_version(780			origin,781			collection_id: CollectionId,782			version: SchemaVersion783		) -> DispatchResult {784			let sender = T::CrossAccountId::from_sub(ensure_signed(origin)?);785			let mut target_collection = <CollectionHandle<T>>::try_get(collection_id)?;786			target_collection.check_is_owner_or_admin(&sender)?;787			target_collection.schema_version = version;788			target_collection.save()789		}790791		/// Set off-chain data schema.792		///793		/// # Permissions794		///795		/// * Collection Owner796		/// * Collection Admin797		///798		/// # Arguments799		///800		/// * collection_id.801		///802		/// * schema: String representing the offchain data schema.803		#[weight = <SelfWeightOf<T>>::set_offchain_schema(schema.len() as u32)]804		#[transactional]805		pub fn set_offchain_schema(806			origin,807			collection_id: CollectionId,808			schema: Vec<u8>809		) -> DispatchResult {810			let sender = T::CrossAccountId::from_sub(ensure_signed(origin)?);811			let mut target_collection = <CollectionHandle<T>>::try_get(collection_id)?;812			target_collection.check_is_owner_or_admin(&sender)?;813814			// check schema limit815			ensure!(schema.len() as u32 <= OFFCHAIN_SCHEMA_LIMIT, "");816817			target_collection.offchain_schema = schema;818			target_collection.save()819		}820821		/// Set const on-chain data schema.822		///823		/// # Permissions824		///825		/// * Collection Owner826		/// * Collection Admin827		///828		/// # Arguments829		///830		/// * collection_id.831		///832		/// * schema: String representing the const on-chain data schema.833		#[weight = <SelfWeightOf<T>>::set_const_on_chain_schema(schema.len() as u32)]834		#[transactional]835		pub fn set_const_on_chain_schema (836			origin,837			collection_id: CollectionId,838			schema: Vec<u8>839		) -> DispatchResult {840			let sender = T::CrossAccountId::from_sub(ensure_signed(origin)?);841			let mut target_collection = <CollectionHandle<T>>::try_get(collection_id)?;842			target_collection.check_is_owner_or_admin(&sender)?;843844			// check schema limit845			ensure!(schema.len() as u32 <= CONST_ON_CHAIN_SCHEMA_LIMIT, "");846847			target_collection.const_on_chain_schema = schema;848			target_collection.save()849		}850851		/// Set variable on-chain data schema.852		///853		/// # Permissions854		///855		/// * Collection Owner856		/// * Collection Admin857		///858		/// # Arguments859		///860		/// * collection_id.861		///862		/// * schema: String representing the variable on-chain data schema.863		#[weight = <SelfWeightOf<T>>::set_const_on_chain_schema(schema.len() as u32)]864		#[transactional]865		pub fn set_variable_on_chain_schema (866			origin,867			collection_id: CollectionId,868			schema: Vec<u8>869		) -> DispatchResult {870			let sender = T::CrossAccountId::from_sub(ensure_signed(origin)?);871			let mut target_collection = <CollectionHandle<T>>::try_get(collection_id)?;872			target_collection.check_is_owner_or_admin(&sender)?;873874			// check schema limit875			ensure!(schema.len() as u32 <= VARIABLE_ON_CHAIN_SCHEMA_LIMIT, "");876877			target_collection.variable_on_chain_schema = schema;878			target_collection.save()879		}880881		#[weight = <SelfWeightOf<T>>::set_collection_limits()]882		#[transactional]883		pub fn set_collection_limits(884			origin,885			collection_id: CollectionId,886			new_limit: CollectionLimits,887		) -> DispatchResult {888			let mut new_limit = new_limit;889			let sender = T::CrossAccountId::from_sub(ensure_signed(origin)?);890			let mut target_collection = <CollectionHandle<T>>::try_get(collection_id)?;891			target_collection.check_is_owner(&sender)?;892			let old_limit = &target_collection.limits;893894			macro_rules! limit_default {895				($old:ident, $new:ident, $($field:ident $(($arg:expr))? => $check:expr),* $(,)?) => {{896					$(897						if let Some($new) = $new.$field {898							let $old = $old.$field($($arg)?);899							let _ = $new;900							let _ = $old;901							$check902						} else {903							$new.$field = $old.$field904						}905					)*906				}};907			}908909			limit_default!(old_limit, new_limit,910				account_token_ownership_limit => ensure!(911					new_limit <= MAX_TOKEN_OWNERSHIP,912					<Error<T>>::CollectionLimitBoundsExceeded,913				),914				sponsor_transfer_timeout(match target_collection.mode {915					CollectionMode::NFT => NFT_SPONSOR_TRANSFER_TIMEOUT,916					CollectionMode::Fungible(_) => FUNGIBLE_SPONSOR_TRANSFER_TIMEOUT,917					CollectionMode::ReFungible => REFUNGIBLE_SPONSOR_TRANSFER_TIMEOUT,918				}) => ensure!(919					new_limit <= MAX_SPONSOR_TIMEOUT,920					<Error<T>>::CollectionLimitBoundsExceeded,921				),922				sponsored_data_size => ensure!(923					new_limit <= CUSTOM_DATA_LIMIT,924					<Error<T>>::CollectionLimitBoundsExceeded,925				),926				token_limit => ensure!(927					old_limit >= new_limit && new_limit > 0,928					<CommonError<T>>::CollectionTokenLimitExceeded929				),930				owner_can_transfer => ensure!(931					old_limit || !new_limit,932					<Error<T>>::OwnerPermissionsCantBeReverted,933				),934				owner_can_destroy => ensure!(935					old_limit || !new_limit,936					<Error<T>>::OwnerPermissionsCantBeReverted,937				),938				sponsored_data_rate_limit => {},939				transfers_enabled => {},940			);941942			target_collection.limits = new_limit;943944			target_collection.save()945		}946	}947}948949// TODO: limit returned entries?950impl<T: Config> Pallet<T> {951	pub fn adminlist(collection: CollectionId) -> Vec<T::CrossAccountId> {952		<IsAdmin<T>>::iter_prefix((collection,))953			.map(|(a, _)| a)954			.collect()955	}956	pub fn allowlist(collection: CollectionId) -> Vec<T::CrossAccountId> {957		<Allowlist<T>>::iter_prefix((collection,))958			.map(|(a, _)| a)959			.collect()960	}961}