Blockchain Solidity-如何从外部合同调用智能合同实例?

Blockchain Solidity-如何从外部合同调用智能合同实例?,blockchain,ethereum,solidity,embark,Blockchain,Ethereum,Solidity,Embark,我创建了AccountManager智能合约和两个实例(PARTYA和PARTYB)。 调用TransferAgent.transfer(AccountManager.address,AccountManager.address)时,我可以看到帐户[msg.sender]。余额按预期更新。 但是,当调用实例(PARTYA和PARTYB)时,例如TransferAgent.transfer(PARTYA.address,PARTYB.address),余额中没有反映任何更改 我花了一些时间研究如何

我创建了AccountManager智能合约和两个实例(PARTYA和PARTYB)。 调用TransferAgent.transfer(AccountManager.address,AccountManager.address)时,我可以看到帐户[msg.sender]。余额按预期更新。 但是,当调用实例(PARTYA和PARTYB)时,例如TransferAgent.transfer(PARTYA.address,PARTYB.address),余额中没有反映任何更改

我花了一些时间研究如何使用地址从TransferAgent(外部合同)调用AccountManager(实例),但找不到任何特定于此的内容。我无法获得平衡以反映变化。有什么建议吗

环境 -以太坊 -启动框架 -坚固性

我的设置如下

contracts.json

    {
      "default": {
        "gas": "auto",
        "contracts": {
          "SimpleStorage": {
            "args": [
              100
            ]
          },
          "Agent" : {
            "args": [
            ]
          },
          "AccountManager" : {
            "args": [
            ]
          },
          "PARTYA" : {
            "instanceOf" : "AccountManager",
            "args" : [
            ]       
          },
          "PARTYB" : {
            "instanceOf" : "AccountManager",
            "args" : [
            ]       
          },
          "TransferAgent" : {
            "args": [
            ]
          }
        }
      }
    }
索尔探员

pragma solidity ^0.4.0;

contract Agent {
/* Define variable owner of the type address*/
address owner;

/* this function is executed at initialization and sets the owner of the contract */
function Agent() { owner = msg.sender; }

/* Function to recover the funds on the contract */
function kill() { if (msg.sender == owner) selfdestruct(owner); }
}

contract AccountManager is Agent {
enum ACTIVE { Y, N } 
enum STATUS { CREDIT, DEBIT }
mapping (address => Account) public accounts;

struct Account {
    bytes32 ssn;
    int balance;
    ACTIVE active;
    STATUS status;
}

modifier withdrawValidation(int withdrawAmt) {
    if( withdrawAmt <= accounts[msg.sender].balance)  {
        throw;
    }
    _;
}

// Check for current account matching 
modifier transferValidation(address _from, address _to, bytes32 _ssn) {
    if( AccountManager(_from).getSSN() != _ssn || 
            AccountManager(_to).getSSN() != _ssn || 
                AccountManager(_from).getStatus() == STATUS.CREDIT )  {
        throw;
    }
    _;
}

function register(bytes32 _ssn) public returns (bool success) {
    Account memory newRegistree;
    newRegistree.ssn = _ssn;
    newRegistree.balance = 0;
    newRegistree.active = ACTIVE.Y;
    newRegistree.status = STATUS.DEBIT;
    accounts[msg.sender] = newRegistree;
    return true;
}

function update(bytes32 _ssn) public returns (bool success) {
    accounts[msg.sender].ssn = _ssn;
    return true;
}

function deposit(int _depositAmt) public returns(bool success) {
    accounts[msg.sender].balance += _depositAmt;
    return true;
}

function withdraw(int _withdrawAmt) public returns(bool success) {
    accounts[msg.sender].balance = (accounts[msg.sender].balance - _withdrawAmt);
    return true;
}

function getBalance() public constant returns(int balance) {
    return accounts[msg.sender].balance;
}

function setBalance(int _balance) external returns(bool success) {
    accounts[msg.sender].balance = _balance;
    return true;
}

function setStatus() internal {
    if(accounts[msg.sender].balance >= 0)
        accounts[msg.sender].status = STATUS.DEBIT;
    else 
        accounts[msg.sender].status = STATUS.CREDIT;
}

function getStatus() external constant returns (STATUS status) {
    return accounts[msg.sender].status;
}

function getSSN() external constant returns(bytes32 ssn) {
    return accounts[msg.sender].ssn;
}

function getAccount() public constant returns (bytes32 ssn, int balance, ACTIVE active, STATUS status) {
    return (accounts[msg.sender].ssn, accounts[msg.sender].balance, accounts[msg.sender].active, accounts[msg.sender].status);
}
}

contract TransferAgent is Agent {
function transfer(address _from, address _to) public returns (bool success) {
    AccountManager(_from).setBalance(100); // not working for instances PARTYA,PARTYB
    AccountManager(_to).setBalance(200); // not working for instances PARTYA,PARTYB    }
}
pragma-solidity^0.4.0;
合同代理人{
/*定义类型地址的变量所有者*/
地址所有者;
/*此函数在初始化时执行,并设置合同的所有者*/
函数代理(){owner=msg.sender;}
/*收回合同资金的功能*/
函数kill(){if(msg.sender==owner)selfdestruct(owner);}
}
合同会计经理是代理人{
枚举活动{Y,N}
枚举状态{贷方,借方}
映射(地址=>账户)公共账户;
结构帐户{
bytes32-ssn;
国际收支平衡;
积极主动;
地位;
}
修改器提取验证(int提取金额){
如果(提款金额=0)
账户[msg.sender].status=status.DEBIT;
其他的
帐户[msg.sender].status=status.CREDIT;
}
函数getStatus()外部常量返回(状态){
返回帐户[msg.sender]。状态;
}
函数getSSN()外部常量返回(bytes32 ssn){
返回帐户[msg.sender].ssn;
}
函数getAccount()公共常量返回(字节32 ssn,整数余额,活动,状态){
返回(帐户[msg.sender].ssn,帐户[msg.sender].balance,帐户[msg.sender].active,帐户[msg.sender].status);
}
}
合同转让代理人是代理人{
函数传输(地址从,地址到)公共返回(bool成功){
AccountManager(_from).setBalance(100);//不适用于实例PARTYA、PARTYB
AccountManager(_to).setBalance(200);//不适用于实例PARTYA,PARTYB}
}

这里有一个非常简单的示例,它只专注于将事务发送到另一个合同

“集线器”将部署两个“辐条”,然后您可以使用
函数local()
向其中一个辐条发送消息。事件记录在两侧,因此您可以看到发生了什么

contract Hub {

  Spoke public A;
  Spoke public B;

  event LogTXNSent(address spoke);

  function Hub() {
    A = new Spoke();
    B = new Spoke();
  }

  function local(address spokeAddress)
    public
    returns(bool success)
  {
    if(spokeAddress != address(A) && spokeAddress != address(B)) throw;
    if(!Spoke(spokeAddress).logEvent()) throw;
    LogTXNSent(spokeAddress);
    return true;
  }

}

contract Spoke {

  event LogTXNFrom(address sender);

  function logEvent()
    public
    returns(bool success)
  {
    LogTXNFrom(msg.sender);
    return true;
  }
}
希望能有帮助