From: Thufir <hawat.thufir@...>
Date: 2009-09-20T14:40:14+09:00
Subject: undefined method for a gem?

I'm thinking that the API for this gem has changed, hence the error?  I'm 
looking into the documentation.  Else, I'm not sure how to approach an 
undefined method.

I pulled the code from:

Practical Ruby Gems
http://www.apress.com/book/view/9781590598115


thufir@ARRAKIS:~/rb$ 
thufir@ARRAKIS:~/rb$ ruby rss2mysql.rb 
/var/lib/gems/1.8/gems/feedtools-0.2.29/lib/feed_tools/feed.rb:312:in 
`load_remote_feed!': undefined method `scheme' for nil:NilClass 
(NoMethodError)
	from /var/lib/gems/1.8/gems/feedtools-0.2.29/lib/feed_tools/
feed.rb:202:in `update!'
	from /var/lib/gems/1.8/gems/feedtools-0.2.29/lib/feed_tools/
feed.rb:155:in `open'
	from rss2mysql.rb:32
thufir@ARRAKIS:~/rb$ 
thufir@ARRAKIS:~/rb$ cat rss2mysql.rb 
require 'rubygems'
require 'active_record'
require 'feed_tools'


feed_url = ARGV[0]
# This call creates a connection to our database.
ActiveRecord::Base.establish_connection(
  :adapter => "mysql",
  :host     => "127.0.0.1",
  :username => "ruby", # Note that while this is the default setting for 
MySQL,
  :password => "password", # a properly secured system will have a 
different MySQL
        # username and password, and if so, you'll need to
        # change these settings.
  :database => "rss2mysql")
class Items <  ActiveRecord::Base
end
# If the table doesn't exist, we'll create it.
unless Items.table_exists?
  ActiveRecord::Schema.define do
    create_table :items do |t|
        t.column :title, :string
        t.column :content, :string
        t.column :source, :string
        t.column :url, :string
        t.column :timestamp, :timestamp
        t.column :keyword_id, :integer
        t.column :guid, :string
      end
  end
end
feed=FeedTools::Feed.open(feed_url)
feed.items.each do |feed_item|
  if not (Items.find_by_title(feed_item.title)      \
    or Items.find_by_url(feed_item.link)            \
    or Items.find_by_guid(feed_item.guid))
  puts "processing item '#{feed_item.title}' - new"

    Items.new do |newitem|
       newitem.title=feed_item.title.gsub(/<[^>]*>/, '')
       newitem.guid=feed_item.guid
       if feed_item.publisher.name
           newitem.source=feed_item.publisher.name
       end
       newitem.url=feed_item.link
       newitem.content=feed_item.description
       newitem.timestamp=feed_item.published
       newitem.save
    end
  else
    puts "processing item '#{feed_item.title}' - old"
  end
end


thufir@ARRAKIS:~/rb$ 








thanks,

Thufir