star rating system

Hii guys ,
I have several products in my mysql database and i wanna allow the authorized users to rate the products !! i am clear till this point like it has to be done with the combination of ajax,php,mysql . I have a requirement for which i dono how to go about i.e the user once rated a product must be allowed to change his rating also!!! i was only thinking of average and rating feature!!!any help on changing the rating !!

this is the rating system i am using

http://www.masugadesign.com/the-lab/...ar-rating-bar/

re: star rating system

I can't see your link but nevertheless, how I would do it is store the user_id, the product and their rating in a table.

Yes, it's true that if every user gave a rating to every product your table will be (Total User x Total Products) huge compared to just (1 x Total Products).

Protip: use REPLACE INTO for this table as a query. If there's no rating with this user/product it will create it, if there is it will update it.

Peace,



Dan