Module: CSVHandlers

Included in:
CrossRef, DuckScraper, LinScraper, Linsc, Merger
Defined in:
lib/linsc/csv_handlers.rb

Instance Method Summary collapse

Instance Method Details

#append_to_csv(file, row) ⇒ Object 



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# File 'lib/linsc/csv_handlers.rb', line 14

def append_to_csv(file, row)
  tries = 10
  begin
    f = CSV.open(file, "a+", headers: row.headers, force_quotes: true)
    f << row
    f.close
  rescue
    tries -= 1
    if tries > 0
      retry
    else
      puts "Unable to write to file #{file}"
      puts "Make sure the file exists and is not open in any other programs and try again. If that does not work try restarting your computer, or restarting the project with the -r flag."
      exit
    end
  end
end

#create_file(f) ⇒ Object 



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# File 'lib/linsc/csv_handlers.rb', line 32

def create_file(f)
  unless File.exist?(f)
    FileUtils.touch(f)
    csv = CSV.open(f, "w+")
    csv << @headers.collect {|x| x && x.encode('utf-8')}
    csv.close
  end
end

#create_file_with_headers(f, headers) ⇒ Object 



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# File 'lib/linsc/csv_handlers.rb', line 41

def create_file_with_headers(f, headers)
  unless File.exist?(f)
    FileUtils.touch(f)
    csv = CSV.open(f, "w+")
    csv << headers.collect {|x| x && x.encode('utf-8')}
    csv.close
  end
end

#create_row(row, headers, encoding = nil) ⇒ Object 



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# File 'lib/linsc/csv_handlers.rb', line 2

def create_row(row, headers, encoding = nil)
  values = []
  headers.each do |header|
    if encoding
      values << row[header].encode(encoding) if row[header]
    else
      values << row[header]
    end
  end
  CSV::Row.new(headers, values)
end

#get_headers(file) ⇒ Object 



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# File 'lib/linsc/csv_handlers.rb', line 50

def get_headers(file)
  CSV.open(file, headers: true, return_headers: true).shift.headers
end