Hi Gaston,

Thanks for your reply!

Going through some of the others post, i came to know that i need to write it on Campaignmember.

Eventually i ended up writing on it and it compiles and runs successfully. I also tried to bulkify. Now i need to write a unit test method and see that apex trigger gets covered.

For this i am assuming that i need to insert a new campaign member object into a campaign that has that "Special" checked.

But for some reason i am stuck with how i can insert campaign member, so that it evetually fires off the trigger.

Can you help me in writing the test method.

Below is the trigger and a Test class to cover the trigger.

Also, can you let me know if my trigger works for Bulk uploads.

Here is the trigger:

trigger add_task on CampaignMember (before Insert) 
{
    Campaign c = [select Id,Special_Campaign__c from Campaign where Id = :Trigger.new[0].CampaignId];
    
    If(c.Special_Campaign__c==True)
    {
    List<Id> Contact_Lead_Ids= new List<Id>();
    
    for(CampaignMember cm : Trigger.New)
    {
        Contact_Lead_Ids.add(cm.ContactId);
        Contact_Lead_Ids.add(cm.LeadId);
    }
    
    List<Contact> contacts=[Select Id from Contact where Id in :Contact_Lead_Ids];
    Map<Id,Contact> Cid_to_Sobject= new Map<Id,Contact>();
    
    List<Lead> leads=[select Id from Lead where Id IN :Contact_Lead_Ids];
    Map<Id,Lead> Lid_to_Sobject=new Map<Id,Lead>();
    
    for(Contact ct : contacts)
        Cid_to_Sobject.Put(ct.Id,ct);
    
    for(Lead l : leads)
        Lid_to_Sobject.Put(l.Id,l);
    
    for(CampaignMember cm2 : Trigger.New)
    {
        if(cm2.ContactId!=NULL)
        {
            Contact ct2=Cid_to_Sobject.get(cm2.ContactId);
            Task myTask=new Task(Whoid=ct2.Id,Subject='Testing contact');
            Insert myTask;
            System.Debug('Task inserted to=='+ct2.Id);
        }
        else
        {
            Lead l2=Lid_to_Sobject.get(cm2.LeadId);
            Task myTask=new Task(WhoId=l2.Id,Subject='Testing Lead');
            Insert myTask;
            System.Debug('Task Inserted to Lead=='+l2.Id);
        }
    }
   
}
}

Here is the Test Class to cover the trigger. This is where i am stuck!

Public Class trigger_Testcls
{
    Static testMethod Void test_CM_Trigger()
    {
        Campaign camp=new Campaign(Name='Test Campaign',Special_Campaign__c=True,IsActive=True);
        List<Contact> ct= new List<contact>();
        List<Lead> ld=new List<lead>();
        
        for(Integer i=0;i<100;i++)
        {
            Contact c=New Contact(FirstName='Test',LastName='Contact');
            ct.add(c);
            Lead l= New Lead(LastName='Test',Status='Open - Not Contacted',Company='Leads');
            ld.add(l);
        }
        Insert ct;
        Insert ld;
        
        List<CampaignMember> cm=New List<CampaignMember>();
        
        for(Integer i=0;i<100;i++)
        {
            CampaignMember Cl=New CampaignMember(CampaignId=camp.Id);
            cm.add(Cl);
        }
        Test.StartTest();
        Insert cm;
        Test.StopTest();
    }
}

Many Thanks for your help,

Kumar