thank you for reply: what i want to do is when a user C make a purchase, his godparent ( user B ) win some money and also the godparent of B ( user A). in the users table i come to add a column named "commission". so when B make purchase, B.commission += 1 and A.commission += 0.5 there's a way to do this please. what code you want!? https://gist.github.com/anonymous/29ef897f922ad9878d4c
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