Simple problem w/ WWW::Mechanize


#1

Hi all, I’m fairly new to Ruby, and, as an exercise, I’m writing some
code for webforms. However, I can’t seem to get the following code to
work - instead, I get the following error:
wikitesting.rb:8:in get': undefined methodmyform’ for
#WWW::Mechanize::Page:0xb7996738 (NoMethodError)
from wikitesting.rb:10

Probably pretty simple, and I can see it’s something wrong with the
way I called the function, however, I’ve spent some time on it and
can’t figure it out. Here’s the code:
require ‘rubygems’
require ‘mechanize’
def get(pagename)
agent = WWW::Mechanize.new
agent.user_agent = ‘Mozilla/4.0 (compatible; MSIE 6.0; Windows NT
5.1)’
page = agent.get(‘http://en.wikipedia.org/w/index.php?title=’ +
pagename + ‘&action=edit’)
myform = page.form(‘editform’)
return page.myform.fields.form(‘wpTextbox1’)
end
text = get(‘Computer’)
pp text

Thanks,

Tim


#2

Hi Tim,

On Tue, Apr 03, 2007 at 08:00:15AM +0900, removed_email_address@domain.invalid
wrote:

require ‘rubygems’
require ‘mechanize’
def get(pagename)
agent = WWW::Mechanize.new
agent.user_agent = ‘Mozilla/4.0 (compatible; MSIE 6.0; Windows NT
5.1)’
page = agent.get(‘http://en.wikipedia.org/w/index.php?title=’ +
pagename + ‘&action=edit’)
myform = page.form(‘editform’)

Try replacing this line:

return page.myform.fields.form(‘wpTextbox1’)

With this:

return myform.wpTextbox1

You’ve already found the form and stored it in the ‘myform’ variable.

end
text = get(‘Computer’)
pp text

Also, if you have more questions, be sure to join the mechanize mailing
list:

http://rubyforge.org/mailman/listinfo/mechanize-users


#3

On Apr 2, 7:25 pm, Aaron P. removed_email_address@domain.invalid wrote:

    from wikitesting.rb:10

page = agent.get('http://en.wikipedia.org/w/index.php?title=’+


Aaron P.http://tenderlovemaking.com/

Thanks for replying. I still get a similar error, though:
wikitesting.rb:8:in get': undefined methodwpTextbox1’ for
nil:NilClass (NoMethodError)
from wikitesting.rb:10

Any ideas? By the way, I’ve joined the mailing list, and any future
questions I might have will probably be directed there.

Thanks,

Tim


#4

On Apr 3, 1:36 am, Aaron P. removed_email_address@domain.invalid wrote:

change ‘Computer’ to ‘Main’, it seems to work:
myform = page.form(‘editform’)
return myform.wpTextbox1
end
text = get(‘Main’)
pp text


Aaron P.http://tenderlovemaking.com/

OK, thanks, that seems to work!

Tim


#5

On Tue, Apr 03, 2007 at 08:50:04AM +0900, removed_email_address@domain.invalid
wrote:

Thanks for replying. I still get a similar error, though:
wikitesting.rb:8:in get': undefined methodwpTextbox1’ for
nil:NilClass (NoMethodError)
from wikitesting.rb:10

Any ideas? By the way, I’ve joined the mailing list, and any future
questions I might have will probably be directed there.

It looks like Wikipidia may not like that parameter in the URL. When I
change ‘Computer’ to ‘Main’, it seems to work:

require ‘rubygems’
require ‘mechanize’

def get(pagename)
agent = WWW::Mechanize.new
agent.user_agent = ‘Mozilla/4.0 (compatible; MSIE 6.0; Windows NT
5.1)’
page = agent.get(‘http://en.wikipedia.org/w/index.php?title=’ +
pagename + ‘&action=edit’)

myform = page.form('editform')
return myform.wpTextbox1

end
text = get(‘Main’)
pp text