Announcement is null when queried on feedItem Trigger

Question

When i try to fetch announcements from feedItem trigger it returns null always, is there anything i'm missing

trigger Email_Feed_Trigger on FeedItem (after insert) {   
Set<Id> myfeed=new set<Id>();

for(FeedItem item : Trigger.New)
{
    myfeed.add(item.Id);
    }
    List<Announcement> lst=  [select id,SendEmails,FeedItemId,ParentId,createddate from Announcement where FeedItemId IN:myfeed];
   //lst is always blank
    system.debug(lst);
}

Answer 1

You will not get the announcement record because the- announcement has a relation to feed item which is required field on the announcement object. So, once feed item gets inserted then only announcement records will get inserted.

Understand the whole process with this: Creating a group announcement is a three-step process.

1. Use the FeedItem object to create a text post with the announcement’s content. Use the CollaborationGroup record you want to post the announcement to as the parent of this feed item.
2. Next, use the feed item ID and an expiration date to create the announcement record.
3. Finally, update the AnnouncementId field in the CollaborationGroup record with the ID of the announcement you created.

Note:- You cannot write a trigger on Announcement object.