DAO Governance Tool: Creation and Management

1.1 DAO Governance

DAO Governance Tool module provides functionality for creating and managing decentralized autonomous organizations (DAOs) on the blockchain. This tool offers mechanisms to initiate proposals, conduct voting, and manage governance rights within the DAO framework. Below, we provide an overview of key features, along with example smart contract code to facilitate voting.

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1.2 Smart Contract Code for Voting

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

contract DAOGovernance {
    struct Proposal {
        uint id;
        string description;
        uint voteCount;
        bool executed;
        uint endTime;
    }

    address public owner;
    uint public proposalCount;
    mapping(uint => Proposal) public proposals;
    mapping(address => uint) public votes;

    uint public votingDuration = 1 weeks;

    modifier onlyOwner() {
        require(msg.sender == owner, "Not authorized");
        _;
    }

    modifier activeProposal(uint proposalId) {
        require(block.timestamp < proposals[proposalId].endTime, "Voting period ended");
        _;
    }

    event ProposalCreated(uint id, string description);
    event Voted(uint proposalId, address voter);
    event ProposalExecuted(uint id);

    constructor() {
        owner = msg.sender;
    }

    // Create a new proposal
    function createProposal(string memory _description) public onlyOwner {
        proposalCount++;
        proposals[proposalCount] = Proposal({
            id: proposalCount,
            description: _description,
            voteCount: 0,
            executed: false,
            endTime: block.timestamp + votingDuration
        });
        emit ProposalCreated(proposalCount, _description);
    }

    // Cast a vote on a proposal
    function vote(uint proposalId) public activeProposal(proposalId) {
        require(votes[msg.sender] == 0, "Already voted");
        proposals[proposalId].voteCount++;
        votes[msg.sender] = proposalId;
        emit Voted(proposalId, msg.sender);
    }

    // Execute the proposal decision
    function executeProposal(uint proposalId) public onlyOwner {
        Proposal storage proposal = proposals[proposalId];
        require(block.timestamp > proposal.endTime, "Voting period not ended");
        require(!proposal.executed, "Proposal already executed");

        // Execute proposal action logic here, based on the result
        proposal.executed = true;
        emit ProposalExecuted(proposalId);
    }
}

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1.3 Explanation of Code Components

1. Proposal Struct: Holds the details for each proposal, including its ID, description, number of votes, execution status, and voting end time.

2. Modifiers:

   • onlyOwner: Restricts functions to the contract owner, who manages the DAO.

   • activeProposal: Ensures that the proposal is still open for voting.

3. Functions:

   • createProposal: Allows the DAO owner to create a proposal with a description.

   • vote: Allows a user to cast a single vote on an active proposal.

   • executeProposal: Executes the proposal’s result after the voting period has ended.

4. Events:

   • ProposalCreated: Logs the creation of a new proposal.

   • Voted: Logs each vote cast by a DAO member.

   • ProposalExecuted: Logs the execution of a proposal after voting concludes.

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1.4 Interaction Using Web3.js

const Web3 = require('web3');
const web3 = new Web3("https://your_rpc_url");

const contractAddress = "0xYourContractAddress";
const abi = [ /* Contract ABI here */ ];

const daoContract = new web3.eth.Contract(abi, contractAddress);

async function voteOnProposal(proposalId, voterAddress) {
    const tx = daoContract.methods.vote(proposalId);
    const gas = await tx.estimateGas({ from: voterAddress });
    const txData = tx.encodeABI();

    const signedTx = await web3.eth.accounts.signTransaction({
        to: contractAddress,
        data: txData,
        gas
    }, "private_key_here");

    await web3.eth.sendSignedTransaction(signedTx.rawTransaction);
    console.log(`Voted on proposal ${proposalId}`);
}

voteOnProposal(1, "0xVoterAddress");