I wanted to understand the custom event creation. I saw some links where the custom event has be explained. Just to gain more knowledge, I have downloaded the attached module which is an extension that handles MLM marketing. Here the link,
In the file config.xml I see the observers. Here is the pastbin link
All the above observer functions is defined in
(pastbin link http://pastebin.com/PkeTNKJR)
My doubt is, I really dont know when the trigger fires and when the event occurs? Sorry if my question is very basic.