运行Rake任务时访问模块方法时遇到一些麻烦,我现在遇到的错误是
rake aborted!
NameError: uninitialized constant CustomerTestimonialGrabber
我已经将我的模块设置为这样的类
require 'open-uri'
require 'nokogiri'
module CustomerTestimonialGrabber
class Grabber
def perform
get_testimonials
end
def get_testimonials
url = 'http://www.ratedpeople.com/profile/lcc-building-and-construction'
doc = Nokogiri::HTML.parse(open url)
testimonial_section = doc.css('.homeowner-rating.content-block:not(.main-gallery):not(:last-child)').each do |t|
title = t.css('h4').text.strip
comment = t.css('q').text.strip
author = t.css('cite').text.strip
end
Testimonial.where(title: title, comment: comment, author: author).first_or_create!
end
end
end
我的Rake任务设置为我通常的状态
namespace :grab do
task :customer_testimonials => :environment do
CustomerTestimonialGrabber::Grabber.new.perform
end
end
任何人都可以解释为什么我无法访问该模块,我也在我的application.rb文件中进行了设置
config.autoload_paths += %W(#{config.root}/lib)
我已经完成了一些阅读,现在在运行我的rake任务之前需要该模块
require './lib/customer_testimonial_grabber/grabber.rb'
但是现在看来我无法访问模型本身
NameError: undefined local variable or method `title' for #<CustomerTestimonialGrabber::Grabber:0x00000004be3878>
也许您应该将推荐行放在前面的方框内?
testimonial_section = doc.css('.homeowner-rating.content-block:not(.main-gallery):not(:last-child)').each do |t|
title = t.css('h4').text.strip
comment = t.css('q').text.strip
author = t.css('cite').text.strip
Testimonial.where(title: title, comment: comment, author: author).first_or_create!
end
因为标题未在其外部定义。