Products in multiple categories. Find similar products.

This is a draft

– product model

– product can be inĀ  more than one categories, on multiple levels of the tree (i can attach the product anywhere i want); no restriction on this what so ever.

– categories are organized as a nested set (logical organized as a tree)

Problem: need to find similar products based on this taxonomy; sorting from ‘most similar’ to ‘least similar’
Continue reading