Class: Pubmedly::Parsers::Article

Inherits:
Object
  • Object
show all
Defined in:
lib/pubmedly/parsers/article.rb

Overview

The Article class provides methods to access Article data.

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(xml) ⇒ Article

Returns a new instance of Article.



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# File 'lib/pubmedly/parsers/article.rb', line 12

def initialize(xml)
  @xml = xml
end

Instance Attribute Details

#xml ⇒ Object (readonly)

Returns the value of attribute xml.



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# File 'lib/pubmedly/parsers/article.rb', line 10

def xml
  @xml
end

Instance Method Details

#abstract ⇒ Object 



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# File 'lib/pubmedly/parsers/article.rb', line 33

def abstract
  @xml.xpath(".//Abstract").text
end

#authors ⇒ Object 



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# File 'lib/pubmedly/parsers/article.rb', line 37

def authors
  @xml.xpath(".//Author").map do |author|
    "#{author.xpath(".//LastName").text}, #{author.xpath(".//ForeName").text}"
  end
end

#doi ⇒ Object 



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# File 'lib/pubmedly/parsers/article.rb', line 60

def doi
  @xml.xpath(".//ELocationID [@EIdType='doi']")&.text
end

#first_author ⇒ Object 



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# File 'lib/pubmedly/parsers/article.rb', line 43

def first_author
  authors.first
end

#last_author ⇒ Object 



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# File 'lib/pubmedly/parsers/article.rb', line 47

def last_author
  authors.last
end

#pmcid ⇒ Object 



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# File 'lib/pubmedly/parsers/article.rb', line 56

def pmcid
  @xml.xpath(".//PubmedData/ArticleIdList/ArticleId [@IdType='pmc']")&.text
end

#pmid ⇒ Object 



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# File 'lib/pubmedly/parsers/article.rb', line 51

def pmid
  id = @xml.xpath(".//PMID").text.to_i
  id.zero? ? nil : id
end

#publication_date ⇒ Object 



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# File 'lib/pubmedly/parsers/article.rb', line 24

def publication_date
  date_str = @xml.xpath(".//PubDate").text
  begin
    date_str.empty? ? "" : Date.parse(date_str)
  rescue Date::Error
    Date.strptime(date_str.strip, "%Y")
  end
end

#title ⇒ Object 



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# File 'lib/pubmedly/parsers/article.rb', line 20

def title
  @xml.xpath(".//ArticleTitle").text
end

#to_s ⇒ Object 



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# File 'lib/pubmedly/parsers/article.rb', line 16

def to_s
  "#{authors.first.split(",").first} (#{publication_date.year}) #{title}"
end