title: Rails Check box on MySql stored as a null or zero
body: <p>On my rails app I have a list of items (like a task list) and for each item there is a couple of check box to set parameters.</p>
  
  <p>When I submit the form, the checked box are stored as zero and the unchecked as null on DB. </p>
  
  <p>the question is: Is there a way to configure it? To store the data on a more traditional 0 or 1, because I think that storing null as false and 0 as true is a bit confusing, specially if another app (like a C app) needs to read the data.</p>