Apex触发器根据与联系人的相关联系来更新任务对象上与公司相关的字段的值（如果仅为空）

Question

I need to write a trigger to pre-fill the value of "Related to: company" field ( if it is null only) on the task object based on the "related to: contact" field value before submitting the record. Please help me how can I achieve this.

Thanks, Shweta

Answer 1

trigger TaskTrigger on Task (after update) { for(Task newTask : Trigger.New){ // Task.WhoId != null // ((string)Task.WhoId).startsWith('003') // Task.WhatId == null if(Task.WhoId != null && ((string)Task.WhoId).startsWith('003') && Task.WhatId == null ){ } } }