Class: CLI::Approx_Scraper

Inherits:
Object
  • Object
show all
Defined in:
lib/what_is_this/Approx_Scraper.rb

Constant Summary collapse

@@page = 
1
@@current_query = 
""
@@all = 
[]

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(name = nil, markup = nil, downloads = nil, id = nil) ⇒ Approx_Scraper

Returns a new instance of Approx_Scraper.



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# File 'lib/what_is_this/Approx_Scraper.rb', line 14

def initialize(name=nil, markup=nil, downloads=nil, id=nil)
    @name = name
    @markup = markup
    @downloads = downloads
    @id = id
    @@all << self
end

Instance Attribute Details

#downloads ⇒ Object

Returns the value of attribute downloads.



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# File 'lib/what_is_this/Approx_Scraper.rb', line 2

def downloads
  @downloads
end

#id ⇒ Object

Returns the value of attribute id.



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# File 'lib/what_is_this/Approx_Scraper.rb', line 2

def id
  @id
end

#markup ⇒ Object

Returns the value of attribute markup.



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# File 'lib/what_is_this/Approx_Scraper.rb', line 2

def markup
  @markup
end

#name ⇒ Object

Returns the value of attribute name.



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# File 'lib/what_is_this/Approx_Scraper.rb', line 2

def name
  @name
end

Class Method Details

.approx_downloads(doc) ⇒ Object 



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# File 'lib/what_is_this/Approx_Scraper.rb', line 64

def self.approx_downloads(doc)
    doc.css('.gems__gem__downloads__count').text.gsub(/[[:space:]]/, ' ').gsub(/Downloads/, '').split()
end

.approx_markups(doc) ⇒ Object 



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# File 'lib/what_is_this/Approx_Scraper.rb', line 43

def self.approx_markups(doc)
    doc.css('.gems__gem__desc').map do |i|
        "#{i.text} "
    end
    
    
end

.approx_names(doc) ⇒ Object 



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# File 'lib/what_is_this/Approx_Scraper.rb', line 35

def self.approx_names(doc)
    begin
        doc.css('h2').css('.gems__gem__name').text.gsub(/[[:space:]]/, ' ').gsub(/[0-9].\S+/, '').split()
    rescue => error
        puts "I hit an error"
        puts error.message
    end
end

.clear_all_instances ⇒ Object 



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# File 'lib/what_is_this/Approx_Scraper.rb', line 67

def self.clear_all_instances
    @@all = []
end

.display_approx ⇒ Object 



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# File 'lib/what_is_this/Approx_Scraper.rb', line 70

def self.display_approx
    puts "======================================================="
    begin
        if (@@all.length >= 1)
        @@all.each do |each|
            puts "---------------------------------"
            puts ''
            puts "##{each.id}"
            puts ''
            puts "About: #{each.name}"
            puts ''
            puts "Markup: #{each.markup}"
            puts ''
            puts "Downloads: #{each.downloads}"
            puts ''
            puts "---------------------------------"
        end
        if (CLI::Scraper_Tools.check_pagination(@doc) != "")
            self.post_search_query

        end
        CLI.restart
    else
        puts "0 search results found"
        CLI::Advanced_Search.restart
    end
rescue => error
    puts error.message
    CLI::Scraper_Tools.retry
end
end

.get_approximate_data(query, page = 1) ⇒ Object 



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# File 'lib/what_is_this/Approx_Scraper.rb', line 8

def self.get_approximate_data(query, page = 1)
    @@current_query = query
    url = "https://rubygems.org/search?page=#{page}&query=#{query}"
    @doc = Nokogiri::HTML(open(url))
    self.new_from_query
end

.new_from_query ⇒ Object 



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# File 'lib/what_is_this/Approx_Scraper.rb', line 21

def self.new_from_query
    
    approx_names(@doc).each_with_index do |each, index|
        self.new(
            approx_names(@doc)[index],
            approx_markups(@doc)[index],
            approx_downloads(@doc)[index],
            index + 1

        )
    end
    
    display_approx
end

.post_search_query ⇒ Object 



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# File 'lib/what_is_this/Approx_Scraper.rb', line 50

def self.post_search_query
    search_results_found = CLI::Scraper_Tools.page(@doc)
    max_pages = (search_results_found / 30).ceil

    puts "Displaying page #{@@page} out of #{max_pages}"
    temp_page = @@page
    @@page = CLI::Scraper_Tools.navigate(@@page, max_pages, @@all)
    
    if (temp_page != @@page)
        self.clear_all_instances
    end
    self.get_approximate_data(@@current_query, @@page)

end