Convertir la chaîne à Date Ruby
date = Date.strptime(start_date, ‘%d/%m/%y’)
Plain Pig
date = Date.strptime(start_date, ‘%d/%m/%y’)
"1-1-2012".to_date # => Sun, 01 Jan 2012
"01/01/2012".to_date # => Sun, 01 Jan 2012
"2012-12-13".to_date # => Thu, 13 Dec 2012
"12/13/2012".to_date # => ArgumentError: invalid date