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DAO 创建的时候，会同时发行一个 NFT，复用 DAO 的类型标识，DAOMemberNFT<X>。该 NFT 创建之后就立刻存入 IdentiferNFT 容器中，和用户绑定。成员加入 DAO 的过程就是领取 DAOMemberNFT 的过程，退出 DAO 的过程就是解除绑定并销毁 NFT 的过程。
关于 IdentiferNFT 的介绍参看 SIP22
DAO SBT
DAO 创建的时候，会同时发行一个 Token，复用 DAO 的类型标识，Token<X>。这个 Token 并不自由流通，而是锁在 DAOMemberNFT 的 Body 中，代表用户在 DAO 中治理投票的权重。不同的 DAO 可以根据自己的场景来映射 SBT，用来代表不同的含义。
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module GenesisDAO {
struct DAO has key {
id: u64,
name: vector<u8>,
dao_address: address,
next_member_id: u64,
}
/// Configuration of the DAO.
struct DAOConfig has copy, drop, store {
/// after proposal created, how long use should wait before he can vote (in milliseconds)
voting_delay: u64,
/// how long the voting window is (in milliseconds).
voting_period: u64,
/// the quorum rate to agree on the proposal.
/// if 50% votes needed, then the voting_quorum_rate should be 50.
/// it should between (0, 100].
voting_quorum_rate: u8,
/// how long the proposal should wait before it can be executed (in milliseconds).
min_action_delay: u64,
/// how many STC should be deposited to create a proposal.
min_proposal_deposit: u128,
}
public fun withdraw_token<DAOT: store, PluginT, TokenT: store>(_cap: &DAOWithdrawTokenCap<DAOT, PluginT>, amount: u128): Token<TokenT>;: store>(_cap: &DAOWithdrawTokenCap<DAOT, PluginT>, amount: u128): Token<TokenT>;
public fun join_member<DAOT: store, PluginT>(_cap: &DAOMemberCap<DAOT, PluginT>, to_address: address, init_sbt: u128);
}
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DAOSBT
DAOMember NFT 的定义以及成员加入时分配 NFT 以及 SBT
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module GenesisDAO{ /// The Dao member NFT metadata struct DaoMember<phantom DaoT> has copy, store, drop { //Member id id: u64, } /// The Dao member NFT Body, hold the SBT token struct DaoMemberBody<phantom DaoT> has store { sbt: Token<DaoT>, } /// Join Dao and get a membership public fun join_member<DaoT: store, PluginT>( _cap: &DaoMemberCap<DaoT, PluginT>, to_address: address, init_sbt: u128) acquires DaoNFTMintCapHolder, DaoTokenMintCapHolder, Dao, MemberEvent { assert!(!is_member<DaoT>(to_address), Errors::already_published(ERR_NOT_ALREADY_MEMBER)); let member_id = next_member_id<DaoT>(); let meta = DaoMember<DaoT>{ id: member_id, }; let dao_address = dao_address<DaoT>(); let token_mint_cap = &borrow_global_mut<DaoTokenMintCapHolder<DaoT>>(dao_address).cap; let sbt = Token::mint_with_capability<DaoT>(token_mint_cap, init_sbt); let body = DaoMemberBody<DaoT>{ sbt, }; //TODO init base metadata let basemeta = NFT::empty_meta(); let nft_mint_cap = &mut borrow_global_mut<DaoNFTMintCapHolder<DaoT>>(dao_address).cap; let nft = NFT::mint_with_cap_v2(dao_address, nft_mint_cap, basemeta, meta, body); IdentifierNFT::grant_to(nft_mint_cap, to_address, nft); let memeber_event = borrow_global_mut<MemberEvent<DaoT>>(dao_address); Event::emit_event(&mut memeber_event.member_join_event_handler, MemberJoinEvent<DaoT> { id : member_id, addr:to_address, |
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sbt: |
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init_sbt, |
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}); } } |
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DAOTemplate
每个 DAO 初始化的时候都会根据这个模版生成一个命名为 XDAO 的 module，并且初始化插件。
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