order review & refund

only people purchased can give review

can they review only once? yes,

how to make sure they can review only once?

shall show previous review?

max interval to review?

separate ui to review? yes, do not make everything together

order review only happen in 1 place? yes,

order refund only happen in 1 place? yes,

customer purchase the same product for the 2nd time, how to limit the review? record them in the order item?

check the table structure