Sha256: 9602e4874f135c606b6073e1f4c04577e9adda615fc660e17cb1dc5f424f0719
Contents?: true
Size: 1 KB
Versions: 29
Compression:
Stored size: 1 KB
Contents
require 'csv'
# A book is simple, it has just:
# * a title
# * an author
# * an isbn
# * a publishing year
# * a publisher
# * a number of subjects
#
class Book
@@books_mapping = {}
# Load the books on startup.
#
file_name = File.expand_path "../data/#{PICKY_ENVIRONMENT}/library.csv", __FILE__
CSV.open(file_name, 'r').each do |row|
@@books_mapping[row.shift.to_i] = row
end
# Find_all_by_id uses a lookup table.
#
def self.find_all_by_id ids, _ = {}
ids.map { |id| new(id, *@@books_mapping[id]) }
end
attr_reader :id
def initialize id, title, author, year, publisher, subjects
@id, @title, @author, @year, @publisher, @subjects = id, title, author, year, publisher, subjects
end
# "Rendering" ;)
#
# Note: This is just an example. Please do not render in the model.
#
def to_s
"<li class='book'><h3><a href='http://google.com?q=#{@title}'>#{@title}</a></h3><em>#{@author}</em><p>#{@year}, #{@publisher}</p><p>#{@subjects}</p></li>"
end
end
Version data entries
29 entries across 29 versions & 1 rubygems