ruby - Sinatra / Rails : How to pass user input between views -


i've been looking bit , can't find or rather understand do, i'm sure quite simple i'm new ruby , web apps, 1 in sinatra simplicity. i'd pass @multiplication_table variable things user puts inputs next results page can see if put in answers correctly dont know how to, think know how form_for dont know how having loop.

this web.rb file

# web.rb require 'sinatra'   def create_table(number)     possibles = [1,2,3,4,5,6,7,8,9,10,11,12]     int_set = possibles.shuffle     result = []     @answer_list = []     while int_set.length > 0         random_int = int_set[0]         string = (number.to_s + " x " + random_int.to_s)         int_set.delete(random_int)         if (random_int.to_s).length == 1             string += " &nbsp;&nbsp;= ______"         else             string += " = ______"         end         result << string         @answer_list << random_int.to_i * number.to_i     end     return result end    '/'     @greeting = "hi! enter number generate quick test."     erb :index end  post '/results'     erb :results     @multiplication_table  end  post '/'     @multiplication_table = create_table(params[:int_to_generate])     @answers = @answer_list     erb :multiplication_table_page end

and multiplication_table_page.erb

<!-- multiplication_table_page.erb --> <html>     <head>         <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-alpha.3/css/bootstrap.min.css">     </head>     <style>         h1 {text-align:center;}         p {text-align:center;}         .form-group {float: right; width: 100%;}         input {float: right;}         #submitall{width:100%;}      </style>     <body>         <div class="container">             <h1>here table! luck.</h1>              <form action ="/results" method="post" class="form-inline">                     <% counter = 0 %>                     <% @multiplication_table.each |equation| %>                         <input type="text" name = <%= "user_answer" + counter.to_s %>  class="form-control">                         <h2> <%= equation %> </h2>                         <% counter += 1 %>                      <% end %>                  <p>&nbsp;</p>                  <input id=submitall type="submit" class = "btn btn-primary">              </form>              <p>&nbsp;</p>              <p>put number in table</p>             <form action ="/" method="post" class="form-inline">                 <div class = "form-group">                 <input type="submit" class = "btn btn-primary">                 <input type="text" name ="int_to_generate" class="form-control">                 </div>              </form>             <% @answers.each |answer| %>                 <p> <%= answer %> </p>             <% end %>          </div>     </body> </html>


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