Class: Douban::Subject

Inherits:
Object
  • Object
show all
Includes:
Equal
Defined in:
lib/douban/subject.rb

Direct Known Subclasses

Book, Movie, Music

Class Method Summary collapse

Instance Method Summary collapse

Methods included from Equal

#==

Constructor Details

#initialize(atom = '') ⇒ Subject

Returns a new instance of Subject.



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# File 'lib/douban/subject.rb', line 27

def initialize(atom='')
  doc = case atom
    when REXML::Document then atom.root
    when REXML::Element then atom
    when nil then nil
    else REXML::Document.new(atom).root
  end
  @doc = doc

  id=REXML::XPath.first(doc,"./id")
  @id=id.text if id
  title=REXML::XPath.first(doc,"./title")
  @title=title.text if title
  @category={}
  category=REXML::XPath.first(doc,"./category")
  @category['term']=category.attributes['term'] if category
  @category['scheme']=category.attributes['scheme'] if category
  REXML::XPath.each(doc,"./db:tag") do |tag|
    @tag||=[]
    t=Tag.new
    t.title=tag.attributes['name']
    t.count=tag.attributes['count']
    @tag<< t
  end
  @author||=Author.new
  name=REXML::XPath.first(doc,"./author/name")
  @author.name=name.text if name
  uri=REXML::XPath.first(doc,"./author/uri")
  @author.uri=uri.text if uri
  REXML::XPath.each(doc,"./author/link") do |link|
    @author.link||={}
    @author.link[link.attributes['rel']]=link.attributes['href']
  end
  summary=REXML::XPath.first(doc,"./summary")
  @summary=summary.text if summary
  REXML::XPath.each(doc,"./link") do |link|
    @link||={}
    @link[link.attributes['rel']]=link.attributes['href']
  end
  REXML::XPath.each(doc,"./db:attribute") do |attribute|
    @attribute ||= {}
    @attribute[attribute.attributes['name']] ||= []
    @attribute[attribute.attributes['name']] << attribute.text
  end
  @rating={}
  rating=REXML::XPath.first(doc,"./gd:rating")
  if rating
    @rating['min']=rating.attributes['min']
    @rating['numRaters']=rating.attributes['numRaters']
    @rating['average']=rating.attributes['average']
    @rating['max']=rating.attributes['max']
  end
end

Class Method Details

.attr_names ⇒ Object 



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# File 'lib/douban/subject.rb', line 10

def attr_names
  [
    :id,
    :title,
    :category,
    :author,
    :link,
    :summary,
    :attribute,
    :tag,
    :rating
  ]
end

Instance Method Details

#aka(lang) ⇒ Object 



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# File 'lib/douban/subject.rb', line 99

def aka(lang)
  akas(lang).first
end

#akas(lang = nil) ⇒ Object 



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# File 'lib/douban/subject.rb', line 85

def akas(lang = nil)
  if lang.nil?
    @attribute["aka"]
  else
    res = []
    REXML::XPath.each(@doc,"./db:attribute") do |attribute|
      if attribute.attributes["name"] == 'aka' and attribute.attributes["lang"] == lang
        res << attribute.text
      end
    end
    res
  end
end

#subject_id ⇒ Object

initialize



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# File 'lib/douban/subject.rb', line 81

def subject_id
  /\/(\d+)$/.match(@id)[1].to_i rescue nil
end