Actually I am working on an Plugin that tracks custom data into an own database table. This data would be logged via an HTTP Connection and not when the user is interacting with the website.
First I thought the Goals Plugin is an reference, but then I noticed that some stuff the Plugin should do, is added to the Piwik Core. That’s very confusing for me.
How I could handle this custom data and how to add it to the database I figured out myself, but now I am struggling again with the archiving and the output of this data in the piwik backend. Displaying ths data with the help of some plain SQL statements isn’t a way that I prefer.