title: Angular Js ngGrid
body: <p>all, i need to conditionally show a hyperlink(ng-href) in a ngGrid column based on a value in the json.</p>
  
  <p>for example if the age is > 18 for a person in the grid, show them the "BuyBeer" link. else show a string, "not yet mate"</p>
  
  <p>Thanks in advance</p>