Hi,
I'm new to this forum, my name is Andreas.

I've bought a couple of days ago the ExtraTabs extension from the marketplace for use in one of my own extensions.

Now if have the problem to add global attributes via API, the API is -without a doubt- some fine peace of work, but sometimes the "right use" of hooks and sub-controllers thrills me. As there is little or no documentation in source code for specific intricate controllers.

My goal is to setup global attributes and write data into the "global_attibute" table and it's affiliated "value" and "description" tables, from one of my extensions.

So the question is, how do I write the proper php-code for the task mentioned.

I did some Investigations, build a SQL EER chart, but I really don't figure it out on the PHP part.


PS: I must excuse for the somewhat poor EER image
      quality, the maximum individual upload size is
      restricted to 128KB per file. I had to compress
      the jpeg by reducing the image quality.