Class: Finviz::QuotesFetcher

Inherits:
Object
  • Object
show all
Defined in:
lib/finviz/quotes_fetcher.rb

Overview

Fetch the details of the security

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(tickers: []) ⇒ QuotesFetcher

Returns a new instance of QuotesFetcher.



14
15
16
 
# File 'lib/finviz/quotes_fetcher.rb', line 14

def initialize(tickers: [])
  @tickers = Array(tickers)
end

Instance Attribute Details

#tickers ⇒ Object (readonly)

Returns the value of attribute tickers.



18
19
20
 
# File 'lib/finviz/quotes_fetcher.rb', line 18

def tickers
  @tickers
end

Class Method Details

.dangerous_methods ⇒ Object 



7
8
9
10
11
12
 
# File 'lib/finviz/quotes_fetcher.rb', line 7

def self.dangerous_methods
  @dangerous_methods ||= OpenStruct.instance_methods
    .map(&:to_s)
    .select {|m| m.length <=5 }
    .reject {|m| m =~ /!|\?|\>|\<|\=|_|\[|\]/ }
end

Instance Method Details

#call ⇒ Object 



20
21
22
23
24
25
26
27
28
29
30
 
# File 'lib/finviz/quotes_fetcher.rb', line 20

def call
  Quotes.new.tap do |result|
    all_pages.each do |page|
      page.html.css("#ticker").zip(page.html.css(".snapshot-table2")).each do |(ticker_xpath, table_xpath)|
        result.add_quote_from_xpath(ticker_xpath, table_xpath)
      end
    end

    self.class.dangerous_methods.each { |m| result.instance_eval("undef :#{m}") }
  end
end