Question

我正在努力拼抢。

class MMA::School
    attr_accessor :name, :location_info, :url

    def self.today
        self.schools
    end

    def self.schools
        schools = []
        schools << self.scrape_cbs
        schools
    end

    def self.scrape_cbs
        doc = Nokogiri::HTML(open("http://newyork.cbslocal.com/top-lists/5-best-mma-and-martial-arts-studios-in-new-york/"))

        schools_1 = self.new
        schools_1.name = doc.search("//div/p/strong/span").text.strip
        schools_1.location_info = doc.search("//div/p")[4].text.strip
        schools_1.url = doc.search("//div/p/a")[0].text.strip

        schools_1

        schools_2 = self.new
        schools_2.name = doc.search("//div/p/span")[0].text.strip
        schools_2.location_info = doc.search("//div/p")[7].text.strip
        schools_2.url = doc.search("//div/p/a")[2].text.strip

        schools_2

        schools_3 = self.new
        schools_3.name = doc.search("//div/p/span")[1].text.strip
        schools_3.location_info = doc.search("//div/p")[9].text.strip
        schools_3.url = doc.search("//div/p/a")[3].text.strip

        schools_3

        schools_4 = self.new
        schools_4.name = doc.search("//div/p/span")[2].text.strip
        schools_4.location_info = doc.search("//div/p")[12].text.strip
        schools_4.url = doc.search("//div/p/a")[5].text.strip

        schools_4

        schools_5 = self.new
        schools_5.name = doc.search("//div/p/span")[3].text.strip
        schools_5.location_info = doc.search("//div/p")[14].text.strip
        schools_5.url = doc.search("//div/p/a")[6].text.strip

        schools_5
    end   
end

将删除的数据放入空数组时遇到一些麻烦。它只会将schools_1等中的一个推送到schools数组。

有人对如何解决此问题有任何建议吗？

Answer 1

如果没有任何解释，我们绝对不清楚你要做什么，但很明显，在你的self.scrape_cbs定义中，行：

schools_1
...
schools_2
...
...
schools_4

毫无意义。也许，你打算从这个方法返回这样的数组：

[schools_1, schools_2, ..., schools_5]

如果是这样，请将上面的行作为方法定义self.scrape_cbs。

的最后一行

将对象铲入数组中

1 个答案: