I have a problem with getting data from cells in UITableView.   

I have a lots of cells (other class with xib) with some people info in table view. Every cell has own switch.

Under table is button that will send message to every person with switch pressed on.   

I set property in people class that will remember if switch for person is on. Every switch in cellForRow method has set selector with method for switch action. 

Problem is that I have no idea, where to set person property value about switch state. In selector method I don't have access to person info.   
I have sender, but no info about person.