# -*- coding: utf-8 -*-
        
      
        

          
          
          =begin rdoc
        
      
        

          
          
          Please see README
        
      
        

          
          
          =end
        
      
        

          
          
          
        
      
        

          
          
          
        
      
        

          1
          
          require 'date'
        
      
        

          
          
          
        
      
        

          1
          
          class Date
        
      
        

          
          
          
        
      
        

          
          
            # Parse date parameters from a typical Rails web form params,
        
      
        

          
          
            # which have three parts with names using (1i) (2i) (3i).
        
      
        

          
          
            #
        
      
        

          
          
            # Example:
        
      
        

          
          
            #   params={
        
      
        

          
          
            #    "foo(1i)bar" => "2007"
        
      
        

          
          
            #    "foo(2i)bar" => "12"
        
      
        

          
          
            #    "foo(3i)bar" => "31"
        
      
        

          
          
            #   }
        
      
        

          
          
            #   Date.parse_params(params,'foo','bar) => Date.new(2007,12,31)
        
      
        

          
          
            
        
      
        

          1
          
            def self.parse_params(params,prefix,suffix='')
        
      
        

          
          
              return nil if !params
        
      
        

          
          
              y = params[prefix+'(1i)'+suffix].to_i
        
      
        

          
          
              m = params[prefix+'(2i)'+suffix].to_i
        
      
        

          
          
              d = params[prefix+'(3i)'+suffix].to_i
        
      
        

          
          
              return nil if (y==0 or m==0 or d==0)
        
      
        

          
          
              return Date.new(y,m,d)
        
      
        

          
          
            end
        
      
        

          
          
          
        
      
        

          
          
          end