Class: YahooFinance::AnalystOpinion::AnalystOpinionPage

Inherits:
Object
  • Object
show all
Defined in:
lib/yahoo_finance/analyst_opinion.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(symbol = nil) ⇒ AnalystOpinionPage

Returns a new instance of AnalystOpinionPage.



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# File 'lib/yahoo_finance/analyst_opinion.rb', line 24

def initialize symbol=nil
  @symbol = symbol
end

Instance Attribute Details

#symbol ⇒ Object

Returns the value of attribute symbol.



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# File 'lib/yahoo_finance/analyst_opinion.rb', line 22

def symbol
  @symbol
end

Instance Method Details

#fetch ⇒ Object 



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# File 'lib/yahoo_finance/analyst_opinion.rb', line 28

def fetch
  url = "http://finance.yahoo.com/q/ao?s=#{@symbol}"
  open(url) do |stream|
    @doc = Nokogiri::HTML(stream)
  end
end

#value_for(key_stat) ⇒ Object 



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# File 'lib/yahoo_finance/analyst_opinion.rb', line 35

def value_for key_stat
  begin
    if key_stat == :upgrades_downgrades_history
      ret = []
      tbl = @doc.xpath("//th[text() = 'Upgrades & Downgrades History']")[0].parent.parent.parent.children[1].xpath("tr")
      for i in 1..(tbl.size-1) do
        r = {}
        r[:date] = YahooFinance.parse_yahoo_field(tbl[i].children[0].text)
        r[:firm] = tbl[i].children[1].text
        r[:action] = tbl[i].children[2].text
        r[:from]  = tbl[i].children[3].text
        r[:to] = tbl[i].children[4].text
        ret << r
      end
      return ret
    end
    if key_stat == :recommendation_trends
      ret = {}
      tbl1 = @doc.xpath("//th[text() = 'Recommendation Trends']")[0].parent.parent
      elem = tbl1.parent
      sibling_idx = elem.children.index(tbl1)+1
      sibling = elem.children[sibling_idx]
      # now get all the subnodes...
      table_rows = sibling.xpath(".//table//tr")  # really contained within a subtable
      for i in 1..(table_rows.size-1) do
        r = table_rows[i]
        header = r.xpath(".//th")
        symbol = header[0].text.gsub(' ','').to_sym
        cells = r.xpath(".//td")
        ar = []
        cells.each do |cell|
          begin
            ar << YahooFinance.parse_yahoo_field(cell.text)
          rescue
            puts " COULD NOT PARSE NUMERIC TREND CELL"
            ar << " "
          end
        end
        ret[symbol] = ar
        # THIS IS NOT WORKING YET. THE LOGIC IS FALSE
      end
      return ret
    end
    if [:upgrades_downgrades_history, :recommendation_trends].include?(key_stat) == false
      value = @doc.xpath("//td[text() = '#{AVL_KEY_STATS[key_stat][0]}']")[0].parent.children[1].text
      return YahooFinance.parse_yahoo_field(value)
    end
  rescue
  end
  return nil
end