Class: Spout::Helpers::SubjectLoader

Inherits:
Object
  • Object
show all
Defined in:
lib/spout/helpers/subject_loader.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(variable_files, valid_ids, standard_version, number_of_rows, visit) ⇒ SubjectLoader

Returns a new instance of SubjectLoader.



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# File 'lib/spout/helpers/subject_loader.rb', line 16

def initialize(variable_files, valid_ids, standard_version, number_of_rows, visit)
  @subjects = []
  @variable_files = variable_files
  @valid_ids = valid_ids
  @standard_version = standard_version
  @number_of_rows = number_of_rows
  @visit = visit
  @all_methods = {}
  @all_domains = []
  @csv_files = []
  @csv_directory = ""
end

Instance Attribute Details

#all_domains ⇒ Object (readonly)

Returns the value of attribute all_domains.



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# File 'lib/spout/helpers/subject_loader.rb', line 14

def all_domains
  @all_domains
end

#all_methods ⇒ Object (readonly)

Returns the value of attribute all_methods.



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# File 'lib/spout/helpers/subject_loader.rb', line 14

def all_methods
  @all_methods
end

#csv_directory ⇒ Object (readonly)

Returns the value of attribute csv_directory.



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# File 'lib/spout/helpers/subject_loader.rb', line 14

def csv_directory
  @csv_directory
end

#csv_files ⇒ Object (readonly)

Returns the value of attribute csv_files.



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# File 'lib/spout/helpers/subject_loader.rb', line 14

def csv_files
  @csv_files
end

#subjects ⇒ Object

Returns the value of attribute subjects.



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# File 'lib/spout/helpers/subject_loader.rb', line 13

def subjects
  @subjects
end

Instance Method Details

#get_domain(json) ⇒ Object 



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# File 'lib/spout/helpers/subject_loader.rb', line 145

def get_domain(json)
  get_json(json["domain"], "domain")
end

#get_json(file_name, file_type) ⇒ Object 



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# File 'lib/spout/helpers/subject_loader.rb', line 134

def get_json(file_name, file_type)
  file = Dir.glob("#{file_type.to_s.downcase}s/**/#{file_name.to_s.downcase}.json", File::FNM_CASEFOLD).first
  JSON.parse(File.read(file, encoding: "utf-8"))
rescue
  nil
end

#get_variable(variable_name) ⇒ Object 



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# File 'lib/spout/helpers/subject_loader.rb', line 141

def get_variable(variable_name)
  get_json(variable_name, "variable")
end

#load_subjects_from_csvs! ⇒ Object 



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# File 'lib/spout/helpers/subject_loader.rb', line 29

def load_subjects_from_csvs!
  load_subjects_from_csvs_part_one!
  load_subjects_from_csvs_part_two!
end

#load_subjects_from_csvs_part_one! ⇒ Object 



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# File 'lib/spout/helpers/subject_loader.rb', line 34

def load_subjects_from_csvs_part_one!
  @subjects = []

  available_folders = (Dir.exist?("csvs") ? Dir.entries("csvs").select { |e| File.directory? File.join("csvs", e) }.reject { |e| [".", ".."].include?(e) }.sort : [])

  @semantic = Spout::Helpers::Semantic.new(@standard_version, available_folders)

  @csv_directory = @semantic.selected_folder

  csv_root = File.join("csvs", @csv_directory)
  @csv_files = Dir.glob("#{csv_root}/**/*.csv").sort

  if @csv_directory != @standard_version
    puts "\n#{@csv_files.size == 0 ? 'No CSVs found' : 'Parsing files' } in " + "#{csv_root}".white + " for dictionary version " + @standard_version.to_s.green + "\n"
  else
    puts "\n#{@csv_files.size == 0 ? 'No CSVs found' : 'Parsing files' } in " + "#{csv_root}".white + "\n"
  end

  last_folder = nil
  @csv_files.each do |csv_file|
    relative_path = csv_file.gsub(%r{^#{csv_root}}, "")
    current_file = File.basename(relative_path)
    current_folder = relative_path.gsub(/#{current_file}$/, "")
    count = 1 # Includes counting the header row
    puts "  #{current_folder}".white if current_folder.to_s != "" && current_folder != last_folder
    print "    #{current_file}"
    last_folder = current_folder

    Spout::Helpers::CSVReader.read_csv(csv_file) do |row|
      count += 1
      print "\r    #{current_file} " + "##{count}".yellow if (count % 10 == 0)
      @subjects << Spout::Models::Subject.create do |t|
        t._visit = row[@visit]
        t._csv = File.basename(csv_file)

        row.each_with_index do |(key, value), index|
          method = key.to_s.downcase.strip
          if method == ""
            puts "\nSkipping column #{index + 1} due to blank header.".red if count == 2
            next
          end
          next unless @valid_ids.include?(method) || @valid_ids.size == 0
          unless t.respond_to?(method) && t.respond_to?("#{method}=")
            t.class.send(:define_method, "#{method}") { instance_variable_get("@#{method}") }
            t.class.send(:define_method, "#{method}=") { |v| instance_variable_set("@#{method}", v) }
          end
          @all_methods[method] ||= []
          @all_methods[method] = @all_methods[method] | [csv_file]
          if value.nil?
            t.send("#{method}=", Spout::Models::Empty.new)
          else
            t.send("#{method}=", value)
          end
        end
      end
      # puts "Memory Used: " + (`ps -o rss -p #{$$}`.strip.split.last.to_i / 1024).to_s + " MB" if count % 1000 == 0
      break if !@number_of_rows.nil? && count - 1 >= @number_of_rows
    end

    print "\r    #{current_file} " + "##{count}".green
    puts "\n"
  end
end

#load_subjects_from_csvs_part_two! ⇒ Object 



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# File 'lib/spout/helpers/subject_loader.rb', line 98

def load_subjects_from_csvs_part_two!
  variable_count = @variable_files.count
  print "Converting numeric values to floats"
  @variable_files.each_with_index do |variable_file, index|
    print "\rConverting numeric values to floats:#{'% 3d' % ((index + 1) * 100 / variable_count)}%"
    json = JSON.parse(File.read(variable_file, encoding: "utf-8")) rescue json = nil
    next unless json
    next unless @valid_ids.include?(json["id"].to_s.downcase) || @valid_ids.size == 0
    next unless %w(numeric integer).include?(json["type"])
    method = json["id"].to_s.downcase
    next unless Spout::Models::Subject.method_defined?(method)

    domain_json = get_domain(json)
    # Make all domain options nil for numerics/integers
    if domain_json
      domain_values = domain_json.collect { |option_hash| option_hash["value"] }
      @subjects.each { |s| domain_values.include?(s.send(method)) ? s.send("#{method}=", nil) : nil }
    end

    @subjects.each { |s| !s.send(method).nil? ? s.send("#{method}=", s.send("#{method}").to_f) : nil }
  end
  puts "\n"
  @subjects
end

#load_variable_domains! ⇒ Object 



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# File 'lib/spout/helpers/subject_loader.rb', line 123

def load_variable_domains!
  @variable_files.each do |variable_file|
    json = JSON.parse(File.read(variable_file, encoding: "utf-8")) rescue json = nil
    next unless json
    next unless json["type"] == "choices" || json["domain"].to_s.downcase.strip != ""
    domain = json["domain"].to_s.downcase
    @all_domains << domain
  end
  @all_domains = @all_domains.compact.uniq.sort
end