sintra_classmates.rb

# create a 2d array
# with a hash at each position
# that has the following keys:
# - name
# - age
# - sex
# then create a Sinatra route that looks
# for the x & y query string params
# then uses them to return information about the student
# in that seat
require 'sinatra'

classroom = [
  [{
    name: "Paul",
    sex: "Male"
  }, {
    name: "Bryan with a y",
    age: "24",
    sex: "Male"
  }, {
    name: "Jasmine",
    age: "23",
    sex: "Female"
  }, {
    name: "Brian with an i",
    age: "33",
    sex: "Male"
  }, {
    name: "David",
    age: "42",
    sex: "Male"
  }], [ {
    name: "Tim",
    age: "31",
    sex: "Male"
  }, {
    name: "Don",
    age: "49",
    sex: "Male"
  }, {
    name: "Serena",
    age: "31",
    sex: "Female"
  }, {
    name: "Juan",
    age: "39",
    sex: "Not tonight"
  }, {
    name: "Deri",
    age: "40",
    sex: "Female"
  }, {
    name: "Deanna",
    age: "24",
    sex: "Female"
  }], [{
    name: "Jaime",
    age: "33",
    sex: "Male"
  }, {
    name: "Kevin",
    age: "32",
    :sex => "Male"
  }, {
    name: "Deven",
    age: "31",
    :sex => "Male"
  }, {
    name: "Greg",
    age: "30",
    home: "Ft. Lauderdale"
  }, {
    name: "Daniel",
    age: "19",
    :sex => "Male"
  }]
]

get '/' do
  row = params['x'].to_i
  seat = params['y'].to_i
  begin
    student = classroom[row][seat]
  rescue NoMethodError
    return "No student!"
  end
  student.map do |k, v|
    "#{k}: #{v}<br/>"
  end
end