Question

我在IBM Hyperledger Composer中定义了以下业务网络

========================================

  namespace org.india.invoicefinance

enum InvoiceState {
  o SUBMITTED
  o APPROVED
  o REJECTED
  o FINANCED
}

asset InvoiceLedger  identified by invoiceNumber {

    o String invoiceNumber
    o DateTime invoiceDt
    o Double amount
    o Integer creditPeriod
    o String poNumber
    o InvoiceState invoiceStatus
    --> Buyer buyer
    --> Seller seller
}
participant Buyer identified by buyerId {
    o String buyerId
    o String orgName
    o String contactName
}

participant Seller identified by sellerId {
    o String sellerId
    o String orgName
    o String contactName
}

transaction Invoice {
    o String invoiceNumber
    o DateTime invoiceDt
    o Double amount
    o Integer creditPeriod
    o String poNumber

  --> Buyer buyer
  --> Seller seller 
}
========================================

在交易处理功能期间，我想执行以下验证：

买方存在于买方，卖方存在于卖方，invoicenumber不存在于invoiceledger

任何人都可以帮助或指导我实现这一目标吗？

非常感谢... Umesh制作

Answer 1

您可以在这里查看比较运营商的智能合约 - ＆gt; https://github.com/hyperledger/composer-sample-networks/blob/master/packages/animaltracking-network/lib/model.cto.js您可以查看

请注意，如果您根据您的模型传递了对买方，卖方和invoiceNumber（所有这些都可能是交易Invoice中的关系）的引用，那么您将拥有相关的CURRENT买方，卖方和Invoicenumber 。显然，您可以连接到这些单独的注册表，以检查其他记录（正如您所提到的）。这里查找的示例 - ＆gt; （更简单的模型，事务具有多个关系）https://github.com/hyperledger/composer-sample-networks/tree/master/packages/trade-network/models（更复杂的模型）https://github.com/hyperledger/composer-sample-networks/blob/master/packages/perishable-network/models/perishable.cto和txn逻辑 - ＆gt; https://github.com/hyperledger/composer-sample-networks/blob/master/packages/perishable-network/lib/logic.js

Hyperledger业务逻辑

1 个答案: