On my patio we have a patio light attached to the house. Problem is we dont have outdoor outlets on the patio. I want an an outlet, is there a way to daisy chain an outlet off the patio light? I have seen you can replace the light, but I want the light and the outlet. I want the outlet to be grounded so one of those light bulb adapters wont work(at least thats what Ive read)

Any help would be most appreciated.