Question

当我尝试在composer-playground中执行事务时，我收到错误“getAssetRegistry返回null并且错误消息显示assetRegistry未定义”

/ *这是我的.cto文件：* /

pip3 install --upgrade virtualenv

/ * chaincode / logic.js文件：* / `/ ** *订购车辆 * @param {org.acme.payrent.Agreement}创建协议事务 * @transaction * /

 namespace org.acme.payrent
  participant Authority identified by authorityId  {
      o String authorityId
  }

participant Tenant identified by tenantEmailId {
  o String tenantEmailId regex =/^([a-zA-Z0-9_\-\.]+)@([a-zA-Z0-9_\-\.]+)\.([a-zA-Z]{2,5})$/
  o String tFirstName
  o Address Address
  o TBankDetails tBank
  o Integer accountNo 
}

participant Owner identified by ownerEmailId {
  o String ownerEmailId regex =/^([a-zA-Z0-9_\-\.]+)@([a-zA-Z0-9_\-\.]+)\.([a-zA-Z]{2,5})$/
  o String name
  o String number regex=/^[0-9]*$/
  o Integer bankaccountno
  o Address propAddress
  --> Tenant tnt
}

participant Bank identified by bankID {
  o String bankID
  o TBankDetails tBank
}

asset Property identified by propAddress {
  o String propAddress
  o Address propActAddress
  o String tenantName
  o Double rentAmount
}

 concept Address {
  o String houseNumber
  o String street
  o String city 
  o String country
}

concept TBankDetails {
  o String bankName
  o String ifscCode
  o String branchName
}

concept Contact {
  o String email regex =/^([a-zA-Z0-9_\-\.]+)@([a-zA-Z0-9_\-\.]+)\.([a-zA-Z]{2,5})$/
  o String mobileNumber regex=/^[0-9]*$/
  o String firstName
  o String lastName
}

event E1{
o String email
o String mobileNumber regex=/^[0-9]*$/
o String tntName
o TBankDetails tntBankDetails
o Address propertyAddress
}

transaction Agreement{
  --> Property property
  o String owrName
  o String tntName
  o String email
  o String propAddress
  o String mobileNumber
  o String bankName
  o String ifscCode
  o String branchName
}`

Answer 1

您的代码存在许多问题

预期的资源或概念的原始问题是后者 - 这不是正确提供给事件
您在分配到property时使用了错误的对象，因此您的assetRegistry更新无效
您需要在分配到事件字段时定义Concept值 - 请参阅代码
已离开console.logs，因此您可以看到输出
您需要为您的交易提供更多数据（例如，概念地址字段）
下面有一个rentAmount分配 - 你需要删除 - 它在那里你可以看到Property资产已被更新，因为交易应该是Agreement


/*
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

/**
 * Sample transaction processor function.
 * @param {org.acme.payrent.Agreement} tntObj The sample transaction instance.
 * @transaction
 */

function Agreement(tntObj)
{

    var factory = getFactory();
    var Namespace = "org.acme.payrent";
    var property = tntObj.property;   // please note
    console.log('property is ' + property);
    var addTntEvent = factory.newEvent(Namespace, 'E1');
    addTntEvent.email = tntObj.email;

    addTntEvent.mobileNumber  = tntObj.mobileNumber ;
    addTntEvent.tntName = tntObj.tntName;

    var tntBankDetails = factory.newConcept(Namespace, 'TBankDetails');

    tntBankDetails.bankName = tntObj.bankName;
    tntBankDetails.ifscCode = tntObj.ifscCode;
    tntBankDetails.branchName = tntObj.branchName;

    addTntEvent.tntBankDetails = tntBankDetails;

    var conceptAddress = factory.newConcept(Namespace, 'Address');

    conceptAddress.houseNumber = '10';
    conceptAddress.street = '20';
    conceptAddress.city = 'Mainz';
    conceptAddress.country = 'DE';

    addTntEvent.propertyAddress = conceptAddress;

    emit(addTntEvent);



    //remove this! var a = getAssetRegistry('org.acme.payrent.Property');

    property.rentAmount =44.22 ; /// so you can see the value change on the asset in playground etc

    return getAssetRegistry('org.acme.payrent.Property')
                            .then(function(propertyRegistry) {
                                return propertyRegistry.update(property); 
    });
}

错误：预期资源或概念

1 个答案: