Where do I add a trigger for “Notes and Attachments” in salesforce.com?

Question

I cannot find where in the salesforce.com UI I can add a trigger on a file attachment. I can find triggers on almost everything else, but attachment seems to be missing from the list (even when I view source on the page and search it. Does anyone know WHERE I can put this trigger in?

Answer 1

Well, as of now, there is no way to do this straight away as an attachment. It is one of those "lesser" objects that salesforce especially gets "protective" about in a random and biased way. The only way to do this is to use some external build&deploy tools such as Force.com IDE.

So, for this, go to any object's trigger list and click on create new. In the URL find entity query string parameter (e.g. entity=Case) and modify it to Attachment (entity=Attachment) and press Enter. A new loaded screen will then accept Attachment trigger.

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