IBM Case Manager打开案例预览同类案例onBroadcastEvent未定义报错

• 你将var self = this声明在require的异步回调内部，此时回调的this指向全局window对象，不是脚本适配器的组件实例，自然不存在onBroadcastEvent实例方法
• onBroadcastEvent是ICM组件的实例方法，仅在组件自身作用域下调用有效，作用域偏移后就会抛出未定义错误

推荐直接使用ICM提供的全局事件广播APIicm.util.broadcastEvent，不需要依赖当前组件实例，彻底规避作用域问题，修复后的代码如下：

// 若需要使用脚本适配器实例的其他方法，可将self声明在require外层捕获正确实例
// var self = this;
require(["icm/model/properties/controller/ControllerManager", "ecm/model/Desktop" ], function(ControllerManager, Desktop) {
  var solution = Desktop.currentSolution;   
  var params = {};  
  var prefix = solution.prefix;    
  params.ObjectStore = solution.getTargetOS().id;    
  var custID = payload.workItemEditable.propertiesCollection.LSS_IdentificationValue.value;
  console.log ("Customer ID: ",custID);    
  var caseObj = payload.workItemEditable.icmWorkItem.caseObject;    
  caseObj.retrieveCachedAttributes(function(caseObject) {      
    var caseID = caseObject.caseIdentifier;      
    console.log ("Case ID: ",caseID);        
    /* 构造搜索条件 */      
    var criterion1 = new ecm.model.SearchCriterion({"id": prefix+"IdentificationValue", "name" : "Identification Type", "selectedOperator": "STARTSWITH", "defaultOperator": "STARTSWITH", "dataType": "xs:string"});      
    criterion1.value = custID ;      
    criterion1.defaultValue = custID ;      
    criterion1.setValues( [custID]);        
    params.criterions = [criterion1];      
    params.CaseType = ""; /* 搜索全部案例类型 */      
    params.solution = solution;        
    var searchPayload = new icm.util.SearchPayload();      
    searchPayload.setModel(params);        
    searchPayload.getSearchPayload(function(payload) {          
      // 替换为全局广播方法，不需要依赖self实例
      icm.util.broadcastEvent("icm.SearchCases", payload);      
    });  
  });            
});

如果你一定要使用组件实例的onBroadcastEvent方法，只需要把var self = this的声明移到require调用的外层，捕获到脚本适配器的正确实例即可。

内容的提问来源于stack exchange，提问作者user1814595