为已部署的智能合同创建全局通讯簿
我想创建一个智能合约(称为Deal)，在部署之后，它将调用另一个智能合约(名为AddressBook)，以便在全局AddressBook智能合约上注册他的地址。我使用的代码可以工作，但不幸的是，我新部署的智能合约没有使用来自AddressBook智能合约的地址，而是使用他自己的地址来调用addAddress函数。如果我在交易合同内调用addressbook.getAddresses(地址)，则红色标记显示输出。蓝色标记显示了如果我在AddressBook协定中调用getAddresses函数时的输出。所以我想要的是交易合同中的蓝色输出
有人能告诉我如何将已部署合同的地址添加到全局AddressBook合同中吗？
这就是我的AddressBook智能合约的样子。我想在此联系人中添加所有已部署的智能合约。
contract AddressBook {
mapping(address => address[]) private _addresses;
mapping(address => mapping(address => string)) private _aliases;
function getAddresses() public view returns (address[]) {
return _addresses[msg.sender];
}
function addAddress(address addr, string _alias) public payable {
_addresses[msg.sender].push(addr);
_aliases[msg.sender][addr] = _alias;
}
function removeAddress(address addr) public payable {
uint length = _addresses[msg.sender].length;
for(uint i = 0; i < length; i++) {
if (addr == _addresses[msg.sender][i]) {
if (1 < _addresses[msg.sender].length && i < length-1) {
_addresses[msg.sender][i] = _addresses[msg.sender][length-1];
}
delete _addresses[msg.sender][length-1];
_addresses[msg.sender].length--;
delete _aliases[msg.sender][addr];
break;
}
}
}
function getAlias(address addr) public view returns (string) {
return _aliases[msg.sender][addr];
}
}这是我希望在全局部署和注册的智能合约
AddressBook smart contract:
contract Deal {
AddressBook addressBook;
address public owner;
address public buyerAddr;
address private addr;
string private metaData;
uint private duration;
uint private price;
string private typeOfData;
string private gateKeeper;
event SafepaySent(address buyer, uint value, uint now);
/// The smart contract's constructor
function Deal(address _addressBook) public payable {
/// The seller is the contract's owner
owner = msg.sender;
AddressBook a = AddressBook(_addressBook);
a.addAddress(owner,"test");
}
}
function getAddresses(address _addressBook) public view returns (address[]) {
return AddressBook(_addressBook).getAddresses();
}
}
contract AddressBook {
function getAddresses() public view returns (address[]);
function addAddress(address addr, string _alias) public payable ;
function removeAddress(address addr) public payable;
function getAlias(address addr) public view returns (string);
}现在，我想在AddressBook智能合约中调用AddressBook.getAddresses()函数，并且想要接收所有部署的交易合约的地址。但是，我在AddressBook智能合约中没有收到任何地址。如果我调用函数Deal.getAddresses("address of the global Addressbook")，我会得到新部署的智能合约的地址。但这不是我想要的。
回答 1
Stack Overflow用户
发布于 2019-03-14 13:45:54
首先，如果您想要使用AddressBook作为一个全局智能合约来跟踪和加载所有Deal合约。您应该已经部署了AddressBook协定并保存了它的地址。然后，您可以在Deal协定的constructor中加载AddressBook协定，并在已经部署的全局AddressBook协定中添加要部署的当前Deal协定的地址。我在给定的合同上做了一些工作。我使用AddressBook协定中的一个地址数组来跟踪所有Deal协定的地址。下面的示例代码可以为您提供很好的思路。
//Address Book Contract
pragma solidity ^0.5.1;
contract AddressBook {
//mapping(address => address[]) private _addresses;
address[] private _addresses;
mapping(address => mapping(address => string)) private _aliases;
function getAddresses() public view returns (address [] memory) {
return _addresses;
}
function addAddress(address addr, string memory _alias) public payable {
_addresses.push(addr);
_aliases[msg.sender][addr] = _alias;
}
}我在这里只关注了_address。以下是交易合同：
pragma solidity ^0.5.1;
import "./AddressBook.sol";
contract Deal {
AddressBook addressBook;
address public owner;
address public buyerAddr;
address private addr;
string private metaData;
uint private duration;
uint private price;
string private typeOfData;
string private gateKeeper;
event SafepaySent(address buyer, uint value, uint now);
/// The smart contract's constructor
constructor(address _addressBook) public payable {
/// The seller is the contract's owner
owner = msg.sender;
addressBook = AddressBook(_addressBook);
addressBook.addAddress(address(this),"test");
}
function getAddresses() public view returns (address[] memory) {
return addressBook.getAddresses();
}
}你也可以在混音中测试和运行它。希望它能起作用。
https://stackoverflow.com/questions/55140341
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