[Suresh Avula]

trigger deleteuniversity on University__c (before insert,before delete,after delete) {
set<id> ids =new set<id>();
if(trigger.isbefore && trigger.isdelete)
{
for(University__c u:trigger.old)
{
ids.add(u.id);
}
system.debug('ma size'+ids);
Deleteuniversityhelper.emp =[SELECT Id, University__c FROM Employeee__c where University__c in:ids];
}
if(trigger.isafter && trigger.isdelete)
{ system.debug('ma size'+Deleteuniversityhelper.emp);
delete Deleteuniversityhelper.emp;
}

}

 

public class Deleteuniversityhelper {
public static list<Employeee__c> emp;
}