Ich erstelle einen Dapp, um das Eigentumsrecht des Vertrags von einer Adresse auf eine andere mit testrpc zu übertragen. Ich stehe jedoch immer wieder vor diesem Problem. Ich habe versucht, die Methode sentransaction zu verwenden, um diese Besitzänderung durchzuführen. Vielleicht rufe ich den Austausch auf eine falsche Art und Weise an. Solidity Version 0.4.4 web3 "Version": "0.20.2"Eigentumsübertragung web3
web3.js:3127 Uncaught Error: VM Exception while processing transaction: invalid opcode
at Object.InvalidResponse (web3.js:3127)
at RequestManager.send (web3.js:6332)
at Eth.send [as sendTransaction] (web3.js:5066)
at SolidityFunction.sendTransaction (web3.js:4122)
at SolidityFunction.execute (web3.js:4208)
at transferOwnership (luxcure_manu.html:309)
at HTMLButtonElement.onclick (luxcure_manu.html:378
Voll Solidität Vertrag als der noch.
pragma solidity ^0.4.4;
// TODO: Hash of the cert through IPFS Hash
// Transfer ownership of smart contract
contract LuxSecure {
address public contract_owner; //Manufacturer/owner
//string public current_owner; //Current Owner of good
bytes32 public model; //Model
mapping(uint => address) public owners; //list of owners
uint256 public owners_count;
bytes32 public status; // (Public(Owned by no one), Private(Bought by another entity),stolen(Stolen from public or private))
bytes32 public date_manufactured; //Time
// Set manufacturer of the Good RUN ONCE ONLY
function manufacturer() public{
if(owners_count == 0){
contract_owner = msg.sender;
}
}
//Modifier that only allows owner of the bag to Smart Contract AKA Good to use the function
modifier onlyOwner(){
require(msg.sender == contract_owner);
_;
}
// Add a new product to the blockchain with a new serial
function addNewGoods(bytes32 _model,bytes32 _status, bytes32 _date_manufactured) public returns(bool made) {//Declare Goods struct
setOwner(msg.sender);
model = _model;
status = _status;
date_manufactured = _date_manufactured;
return true;
}
//This function transfer ownership of contract from one entity to another
function transferOwnership(address _newOwner) public onlyOwner(){
require(_newOwner != address(0));
contract_owner = _newOwner;
}
//Set the KEY to uint256 and VALUE owner Ethereum Address
function setOwner(address owner)public{
owners_count += 1 ;
owners[owners_count] = owner;
}
//Get the previous owner in the mappings
function previousOwner()constant public returns(address){
if(owners_count != 0){
uint256 previous_owner = owners_count - 1;
return owners[previous_owner];
}
}
// Getter Methods
function getManufacturer() constant public returns(address){
return contract_owner;
}
function getCurrentOwner() constant public returns(address){
return owners[owners_count] ;
}
function getOwnerCount() constant public returns(uint256){
return owners_count;
}
function getModel() constant public returns(bytes32){
return model;
}
function getStatus() constant public returns(bytes32){
return status;
}
function getDateManufactured() constant public returns(bytes32){
return date_manufactured;
}
}// end of LuxSecure
Javascript um die Übertragung des Eigentums
function transferOwnership(){
var account_to_transfer = document.getElementById("ethereumaddress").value;
contract.transferOwnership(account_to_transfer,{
from:web3.eth.accounts[0],
gas:4000000
});
}
Können Sie den vollständigen Vertrag buchen? Welche Version von web3js benutzt du? –
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