Question

我正在尝试添加名为[ { "id": "1", "timestamp": "valid-timestamp1", "value-1": "1", "value-2": "2", "value-3": "3" }, { "id": "1", "timestamp": "valid-timestamp1", "value-1": "1", "value-2": "2", "value-3": "3" } ]的交易，我想添加一个placeOrder参与者在创建Customer资产并在处理此交易时映射其与Order资产的关系。但是我收到客户未定义的错误。有人可以帮忙吗？谢谢。

我的模特

Order

script.js

namespace org.isn.customer

participant Customer identified by email {
 o String firstName
 o String lastName
 o String email
 o String password
}

enum Status{
    o ACTIVE
    o OFF_THE_ROAD  
}

asset Vehicle identified by serial {
 o String brand
 o String model
 o String color
 o Status status
 o Double price
 o String serial
}
asset Order identified by orderId{
 o String orderId
 o Vehicle item
 --> Customer customer
}

transaction PlaceOrder {
    o String orderId
    --> Vehicle item
    o Customer customer
}

Answer 1

o Customer customer需要成为--> Customer customer，然后您才能引用orderRequest.customer.firstName等，也不确定是否需要order.customer = customer.getIdentifier();可能需要成为order.customer.email = customer.getIdentifier();

Answer 2

以下版本的模型和JS将适用于新客户和现有客户：

    namespace org.isn.customer

participant Customer identified by email {
 o String firstName
 o String lastName
 o String email
 o String password
}

enum Status{
o ACTIVE
o OFF_THE_ROAD  
}

asset Vehicle identified by serial {
 o String brand
 o String model
 o String color
 o Status status
 o Double price
 o String serial
}

asset Order identified by orderId{
 o String orderId
 --> Vehicle item
 --> Customer customer
}

transaction PlaceOrder {
    o String orderId
    --> Vehicle item
    o Customer customer
}


/**
 * @param {org.isn.customer.PlaceOrder}orderRequest  
 * @transaction
 */

async function placeOrder(orderRequest){
    const factory = getFactory(); 
    const customerRegistry = await getParticipantRegistry("org.isn.customer.Customer");
    const customerExists = await customerRegistry.exists(orderRequest.customer.email);
    if(!customerExists){ 
        var customer = factory.newResource("org.isn.customer","Customer",orderRequest.customer.email);
        customer.firstName = orderRequest.customer.firstName;
        customer.lastName = orderRequest.customer.lastName;
        customer.email = orderRequest.customer.email;
        customer.password = orderRequest.customer.password;
        await customerRegistry.add(customer);
    }else{
        var customer = await customerRegistry.get(orderRequest.customer.email);    
    }
    const order = await factory.newResource("org.isn.customer","Order",orderRequest.orderId);
    order.customer = factory.newRelationship("org.isn.customer","Customer",customer.getIdentifier());
    order.item = orderRequest.item;
    const orderRegistry = await getAssetRegistry("org.isn.customer.Order");
    await orderRegistry.add(order);
}

请注意以下几点：在订单资产中，我将o Vehicle更改为--> Vehicle item以与交易匹配。

我还在if和else代码中都使用了var customer。

（要使我的工作正常，我必须使用相同的名称空间，但也许您有单独的.cto文件）

Hyperledger Fabric Composer事务不起作用

2 个答案: