Dastan
0bcebac4fc
# Description - What does this PR do? While working with `pallet_nfts` through `nonfungibles_v2` traits `Inspect, Mutate`, I found out that once you have set the collection attribute with `<Nfts as Mutate>::set_collection_attribute()`, it's not possible to read it with `<Nfts as Inspect>::collection_attribute()` since they use different `namespace` values. When setting the attribute, `AttributeNamespace::Pallet` is used, while `AttributeNamespace::CollectionOwner` is used when reading. more context: https://github.com/freeverseio/laos/issues/7#issuecomment-1766137370 This PR makes `item` an optional parameter in `Inspect::system_attribute()`, to be able to read collection attributes. - Why are these changes needed? To be able to read collection level attributes when reading attributes of the collection. It will be possible to read collection attributes by passing `None` for `item` - How were these changes implemented and what do they affect? `NftsApi` is also affected and `NftsApi::system_attribute()` now accepts optional `item` parameter. ## Breaking change Because of the change in the `NftsApi::system_attribute()` method's `item` param, parachains who integrated the `NftsApi` need to update their API code and frontend integrations accordingly. AssetHubs are unaffected since the NftsApi wasn't released on those parachains yet.
NOTE: We have recently made significant changes to our repository structure. In order to streamline our development process and foster better contributions, we have merged three separate repositories Cumulus, Substrate and Polkadot into this repository. Read more about the changes here.
Polkadot SDK
The Polkadot SDK repository provides all the resources needed to start building on the Polkadot network, a multi-chain blockchain platform that enables different blockchains to interoperate and share information in a secure and scalable way. The Polkadot SDK comprises three main pieces of software:
Polkadot
Implementation of a node for the https://polkadot.network in Rust, using the Substrate framework. This directory
currently contains runtimes for the Polkadot, Kusama, Westend, and Rococo networks. In the future, these will be
relocated to the runtimes repository.
Substrate
Substrate is the primary blockchain SDK used by developers to create the parachains that make up the Polkadot network. Additionally, it allows for the development of self-sovereign blockchains that operate completely independently of Polkadot.
Cumulus
Cumulus is a set of tools for writing Substrate-based Polkadot parachains.
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