cara.coffee

        block = []
        switch req.workshop.session
          # Block 1
          when 1
            block = [1, 2, 3]
          when 2
            block = [1, 2]
          when 3
            block = [1, 3]
          # Block 2
          when 4
            block = [4, 5, 6]
          when 5
            block = [4, 5]
          when 6
            block = [4, 6]
          # Block 3
          when 7
            block = [7, 8, 9]
          when 8
            block = [7, 8]
          when 9
            block = [7, 9]
          # Block 4
          when 10
            block = [10, 11, 12]
          when 11
            block = [10, 11]
          when 12
            block = [10, 12]