multible CStarRatings for 1 view

Hey guys, let me start off by saying i’m fairly new at yii.

what i want to create is the ability to rate a post with CStarRating. I haven’t tried this rating system yet, so i don’t know how it works precisely. The reason i’m creating this topic, is because i want to rate my posts on different criteria (like relevance, how funny it is, general rating etc), and i don’t know how to create that.

can you please help me by explaining if i should create 1 or more new tables to my database, and what i then should do to let people rate the posts with different criteria?

(yes, i know my question is very wide and big, but i’m really lost here because i can’t find any other posts about this)