Sort products by attribute position
In my site I have set a filter for ordering my products by attribute, but the order is alphabetical and I would like the order to be by position attribute setted in backend.
Example attribute color:
***********************************
Valuename | Position
green | 1
blue | 2
red | 3
************************************
The actual result in frontend is product blue then green then red, I would like the result is green then blue then red
What classes should I modify for resolving this problem?
thanks in advance
