damascus_catalog.rb

#!/usr/bin/env ruby

require_relative 'config'
require_relative 'lib/ba-id/ba_id'

require 'sequel'
require 'logger'

db_file = File.join(__dir__, 'entries.sqlite3')
DB = Sequel.connect("sqlite://#{db_file}", loggers: [Logger.new($stdout)], sql_log_level: :debug)

class DamascusCatalog < Sequel::Model
  # Magically accesses the table that has its name#underscorize
 
  attr_accessor :place, :institution, :year_of_publication, :author, :volume

  def add_ba_id_attributes
    # Assigning extra attributes based on BA ID
    parsed_ba_id_hash = BibliothecaArabicaID.parse(ba_id)
    parsed_ba_id_hash.each do |k,v|
      instance_variable_set("@#{k}".to_sym, v) # Need to be added to attr_accessor first!
      values[k.to_sym] = v                     # Required for Sequel::Model#to_hash...
    end
    self
  end

  def self.where(str)
    results = []
    super(str).each {|result| results << result.add_ba_id_attributes}
    results
  end

  def self.first_by_id(str)
    begin
      where(ba_id: str).first
    rescue Exception => e
      puts "#{str}: No such entry (#{e})."
      nil
    end
  end

  def place
    # TODO: enhance rakefile to extract list of institutions, create lookup table with normalized long-form names
    # read from that lookup table here
    # only THEN fall back on translation engine
    return begin
      case MACHINE_TRANSLATION_ENGINE
        when :google_translate then
          require 'google/cloud/translate'
          t = Google::Cloud::Translate.new
          t.translate place, to: 'en'
        when :microsoft_bing then
          require 'bing_translator'
          t = BingTranslator.new(COGNITIVE_SUBSCRIPTION_KEY)
          t.translate place, from: 'de', to: 'en'
      else
        throw
      end
    rescue
      return @place
    end
  end
emd