红宝石，Feedzirra，typhoeus

Question

我是Ruby的新手(第一天！)我正在努力解决这个问题。我正在尝试构建一个rss解析器与Typhoeus相结合，因为我要解析超过100个提要，也因为我想让它正常工作。

这就是我的代码：

require 'typhoeus'
require 'feedzirra'

feed_urls = ["feed1", "feed2"]

hydra = Typhoeus::Hydra.new
feeds = {}
entry = {}
feed_urls.each do |feed|
  r = Typhoeus::Request.new(feed)
  r.on_complete do |response|
    feeds[r.url] = response.body
    feeds[r.url] = Feedzirra::Feed.parse(response.body)
    entry = feeds.entries.each do |entry|
      puts entry.title
    end
    hydra.queue r
  end
end

hydra.run

我敢肯定这是一些语法问题。我仍然有一些困难的时候。例如，我总是使用;结束行，尽管我在编写PHP时总是忘记它。所以，也许有人能帮上忙？在没有台风的情况下获得反馈结果并不是太难。

编辑：

>> puts feeds.entries.inspect
[["http://feedurl", #<Feedzirra::Parser::AtomFeedBurner:0x1023b53f0 @title="Paul Dix Explains Nothing", @entries=[#<Feedzirra::Parser::AtomFeedBurnerEntry:0x1023b05d0 @published=Thu Jan 13 16:59:00 UTC 2011, @author="Paul Dix", @summary="Earlier this week I had the opportunity to sit with six other people from the NYC technology scene and talk to NYC Council Speaker Christine Quinn and a few members of her staff. Charlie O'Donnell organized the event to help...", @updated=Thu Jan 13 17:55:31 UTC 2011, @title="Water water everywhere and not a drop to drink: The Myth and Truth of the NYC engineer shortage", @entry_id="tag:typepad.com,2003:post-6a00d8341f4a0d53ef0148c793f692970c", @content="....

所以，我至少得到了一些东西。

Answer 1

您似乎是在on_complete块中退出。您不应该在feed_urls.each块中排队吗？或者，也许你应该在所有的请求都完成之后再检查所有的条目？如下所示：

hydra = Typhoeus::Hydra.new
feeds = {}
entry = {}
feed_urls = ["feed1", "feed2"]

feed_urls.each do |feed|
  r = Typhoeus::Request.new(feed)
  r.on_complete do |response|
      feeds[r.url] = response.body
      feeds[r.url] = Feedzirra::Feed.parse(response.body)
  end

  hydra.queue r
end

hydra.run

feeds.entries.each do |feed|
  puts "-- " + feed[1].title

  feed[1].entries.each do |entry|
    puts entry.title
  end
end

Answer 2

你的街区尽头少了一个end。如果您一致地缩进您的代码，您将看到漏洞：

require 'typhoeus'
require 'feedzirra'
feed_urls = ["feed1", "feed2"]    
hydra = Typhoeus::Hydra.new
feeds = {}
entry = {}
feed_urls.each do |feed|
  r = Typhoeus::Request.new(feed)
  r.on_complete do |response|
    feeds[r.url] = response.body
    feeds[r.url] = Feedzirra::Feed.parse(response.body)
    entry = feeds.entries.each do |entry|
      puts entry.title
    end
    hydra.queue r
  end

### You need an 'end' on this line to close the `each` ###

hydra.run

欢迎使用Ruby和Stack Overflow！:)