Question

This is the example I keep seeing online as how to set cookies.

require 'cgi' cookie = CGI::Cookie.new('rubyweb', 'CustID=123', 'Part=ABC'); cgi = CGI.new('html3') cgi.out( 'cookie' => [cookie] ){   cgi.html{     '\nHTML content here'   } } 

I tried doing it this way and it sets the cookie and then comes up with a blank page.

#!/usr/local/bin/ruby  require 'cgi' load 'inc_game.cgi' cgi = CGI.new  cookie = CGI::Cookie.new('rubyweb', 'CustID=123', 'Part=ABC'); cgi.out( 'cookie' => [cookie] ){''}       #see if game submit buttons pressed doIt = cgi['play'] puts 'Content-type: text/html\n\n'    play = Game.new  #welcome if doIt == '' puts play.displayGreeting end  #choose weapon play.playGame  if doIt == 'Play'     move = cgi['weapon']     human = play.humanMove(move)     computer = play.ComputerMove     print human     print computer     result = play.results(human,computer)     play.displayResults(result) end 

So my question first would be, what am I missing/doing wrong? Secondly I am wondering if anyone would want to explain what .out does as opposed to .header or if there is a difference?

Thanks,

Levi

Answer 1

I believe this line:

cgi.out( 'cookie' => [cookie] ){''} 

Is flushing your headers out.

Upon running the code bare in my TTY,

 Content-Type: text/html Content-Length: 0 Set-Cookie: rubyweb=CustID%3D123&Part%3DABC; path=  Content-type: text/html 

was emitted, and ‘Content-Length: 0’ ( generated by the empty string in out{} ) is possibly telling the browser you’re done.

cookie = CGI::Cookie.new('rubyweb', 'CustID=123', 'Part=ABC'); cgi.header( 'cookie' => [cookie] ,  type => 'text/html' )  #normal printing here  

Would be preferable for sending headers.

Opting for a ‘do processing’ – ‘then think about output’ model might help.

require 'cgi' load 'inc_game.cgi'  cgi = CGI.new cookie = CGI::Cookie.new('rubyweb', 'CustID=123', 'Part=ABC');  output = '';   #see if game submit buttons pressed doIt = cgi['play']  play = Game.new  #welcome if doIt == ''   output << play.displayGreeting end  #choose weapon play.playGame  if doIt == 'Play'     move = cgi['weapon']     human = play.humanMove(move)     computer = play.ComputerMove     output << human     output << computer     result = play.results(human,computer)     output << play.displayResults(result) end    cgi.out( 'cookie' => [cookie] , type=>'text/html' ){    output;  }