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comp.lang.ruby

Ruby doesn't work correctly

Patrick

6/6/2006 1:58:00 PM

Hi,

Im a beginner in Ruby, but with skills in other programming languages.

I tried to execute the following code:

require 'net/http'
require 'uri'

#1: Simple POST
res =
Net::HTTP.post_form(URI.parse('http://www.example.com/searc...),
{'q'=>'ruby', 'max'=>'50'})
puts res.body

I got the code from http://www.ruby-doc.o... -> net/http. Of
course, I replaced the Site ("www.example.com...") with my site
(because i want to send informations to a php-programm).

But the console does the following output:

mypath/ruby/lib/ruby/1.8/net/protocol.rb:175:in `write': Invalid
argument (Errno::EI
NVAL)
from mypath/ruby/lib/ruby/1.8/net/protocol.rb:175:in `write0'
from mypath/ruby/lib/ruby/1.8/net/protocol.rb:151:in `write'
from mypath/ruby/lib/ruby/1.8/net/protocol.rb:166:in `writing'
from mypath/ruby/lib/ruby/1.8/net/protocol.rb:150:in `write'
from mypath/ruby/lib/ruby/1.8/net/http.rb:1542:in
`write_header'
from mypath/ruby/lib/ruby/1.8/net/http.rb:1513:in
`send_request_with_body'
from mypath/ruby/lib/ruby/1.8/net/http.rb:1496:in `exec'
from mypath/ruby/lib/ruby/1.8/net/http.rb:1044:in `request'
from mypath/ruby/lib/ruby/1.8/net/http.rb:405:in `post_form'
from mypath/ruby/lib/ruby/1.8/net/http.rb:545:in `start'
from mypath/ruby/lib/ruby/1.8/net/http.rb:404:in `post_form'
from mypath/php.rb:5

Line 5 is: res =
Net::HTTP.post_form(URI.parse('http://www.example.com/searc...),
{'q'=>'ruby', 'max'=>'50'})

I thought my ruby is maybe damaged, so i deleted it, and installed it
new. But i get always the same error.

I hope anyone would be so kind and can help me.

Thank you,

Patrick
2 Answers

Jay

6/6/2006 10:56:00 PM

0


Patrick,

I'm even more of a beginner in Ruby than you are, but I'm wondering if
you cant put a breakpoint in the ruby code and debug it. I'm using
ActiveState Komodo, which allows for Ruby debugging, and the file you
referenced, "protocol.rb", is included when you install ruby.

Patrick wrote:
> Hi,
>
> Im a beginner in Ruby, but with skills in other programming languages.
>
> I tried to execute the following code:
>
> require 'net/http'
> require 'uri'
>
> #1: Simple POST
> res =
> Net::HTTP.post_form(URI.parse('http://www.example.com/searc...),
> {'q'=>'ruby', 'max'=>'50'})
> puts res.body
>
> I got the code from http://www.ruby-doc.o... -> net/http. Of
> course, I replaced the Site ("www.example.com...") with my site
> (because i want to send informations to a php-programm).
>
> But the console does the following output:
>
> mypath/ruby/lib/ruby/1.8/net/protocol.rb:175:in `write': Invalid
> argument (Errno::EI
> NVAL)
> from mypath/ruby/lib/ruby/1.8/net/protocol.rb:175:in `write0'
> from mypath/ruby/lib/ruby/1.8/net/protocol.rb:151:in `write'
> from mypath/ruby/lib/ruby/1.8/net/protocol.rb:166:in `writing'
> from mypath/ruby/lib/ruby/1.8/net/protocol.rb:150:in `write'
> from mypath/ruby/lib/ruby/1.8/net/http.rb:1542:in
> `write_header'
> from mypath/ruby/lib/ruby/1.8/net/http.rb:1513:in
> `send_request_with_body'
> from mypath/ruby/lib/ruby/1.8/net/http.rb:1496:in `exec'
> from mypath/ruby/lib/ruby/1.8/net/http.rb:1044:in `request'
> from mypath/ruby/lib/ruby/1.8/net/http.rb:405:in `post_form'
> from mypath/ruby/lib/ruby/1.8/net/http.rb:545:in `start'
> from mypath/ruby/lib/ruby/1.8/net/http.rb:404:in `post_form'
> from mypath/php.rb:5
>
> Line 5 is: res =
> Net::HTTP.post_form(URI.parse('http://www.example.com/searc...),
> {'q'=>'ruby', 'max'=>'50'})
>
> I thought my ruby is maybe damaged, so i deleted it, and installed it
> new. But i get always the same error.
>
> I hope anyone would be so kind and can help me.
>
> Thank you,
>
> Patrick

Tim Hoolihan

6/7/2006 1:30:00 PM

0

The second version of the pickaxe book (p.699) shows doing your example
like the following:

require 'net/http'

Net::HTTP.start('www.example.com') do |http|
res = http.post("/search.cgi","q=ruby&max=50")
puts res.body
end

When I tried this way on a page that receives a post, it did not seem to
receive the post value, but there were no ruby errors, so I tend to
think that I am just posting the wrong info or using the wrong syntax in
my second argument ("q=ruby..."). Anyway, I would play around with that.

-Tim

Patrick wrote:
> Hi,
>
> Im a beginner in Ruby, but with skills in other programming languages.
>
> I tried to execute the following code:
>
> require 'net/http'
> require 'uri'
>
> #1: Simple POST
> res =
> Net::HTTP.post_form(URI.parse('http://www.example.com/searc...),
> {'q'=>'ruby', 'max'=>'50'})
> puts res.body
>
> I got the code from http://www.ruby-doc.o... -> net/http. Of
> course, I replaced the Site ("www.example.com...") with my site
> (because i want to send informations to a php-programm).
>
> But the console does the following output:
>
> mypath/ruby/lib/ruby/1.8/net/protocol.rb:175:in `write': Invalid
> argument (Errno::EI
> NVAL)
> from mypath/ruby/lib/ruby/1.8/net/protocol.rb:175:in `write0'
> from mypath/ruby/lib/ruby/1.8/net/protocol.rb:151:in `write'
> from mypath/ruby/lib/ruby/1.8/net/protocol.rb:166:in `writing'
> from mypath/ruby/lib/ruby/1.8/net/protocol.rb:150:in `write'
> from mypath/ruby/lib/ruby/1.8/net/http.rb:1542:in
> `write_header'
> from mypath/ruby/lib/ruby/1.8/net/http.rb:1513:in
> `send_request_with_body'
> from mypath/ruby/lib/ruby/1.8/net/http.rb:1496:in `exec'
> from mypath/ruby/lib/ruby/1.8/net/http.rb:1044:in `request'
> from mypath/ruby/lib/ruby/1.8/net/http.rb:405:in `post_form'
> from mypath/ruby/lib/ruby/1.8/net/http.rb:545:in `start'
> from mypath/ruby/lib/ruby/1.8/net/http.rb:404:in `post_form'
> from mypath/php.rb:5
>
> Line 5 is: res =
> Net::HTTP.post_form(URI.parse('http://www.example.com/searc...),
> {'q'=>'ruby', 'max'=>'50'})
>
> I thought my ruby is maybe damaged, so i deleted it, and installed it
> new. But i get always the same error.
>
> I hope anyone would be so kind and can help me.
>
> Thank you,
>
> Patrick
>