Class: LocalchI18n::CsvToYaml

Inherits:
Object
  • Object
show all
Defined in:
lib/localch_i18n/csv_to_yaml.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(input_file, output_file, locales = []) ⇒ CsvToYaml

Returns a new instance of CsvToYaml.



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# File 'lib/localch_i18n/csv_to_yaml.rb', line 7

def initialize(input_file, output_file, locales = [])
  @input_file = input_file
  @output_file = File.basename(output_file)
  @locales = locales.map(&:to_s)

  # init translation hash
  @translations = {}
  @locales.each do |locale|
    @translations[locale] = {}
  end
end

Instance Attribute Details

#input_file ⇒ Object (readonly)

Returns the value of attribute input_file.



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# File 'lib/localch_i18n/csv_to_yaml.rb', line 5

def input_file
  @input_file
end

#locales ⇒ Object (readonly)

Returns the value of attribute locales.



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# File 'lib/localch_i18n/csv_to_yaml.rb', line 5

def locales
  @locales
end

#output_file ⇒ Object (readonly)

Returns the value of attribute output_file.



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# File 'lib/localch_i18n/csv_to_yaml.rb', line 5

def output_file
  @output_file
end

#translations ⇒ Object (readonly)

Returns the value of attribute translations.



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# File 'lib/localch_i18n/csv_to_yaml.rb', line 5

def translations
  @translations
end

Instance Method Details

#process ⇒ Object 



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# File 'lib/localch_i18n/csv_to_yaml.rb', line 32

def process
  FasterCSV.foreach(@input_file, :headers => true) do |row|
    process_row(row.to_hash)
  end
end

#process_row(row_hash) ⇒ Object 



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# File 'lib/localch_i18n/csv_to_yaml.rb', line 38

def process_row(row_hash)
  key = row_hash.delete('key')

  key_elements = key.split('.')
  @locales.each do |locale|
    raise "Locale missing for key #{key}! (locales in app: #{@locales} / locales in file: #{row_hash.keys.to_s})" if !row_hash.has_key?(locale)
    store_translation(key_elements, locale, row_hash[locale])
  end
end

#store_translation(keys, locale, value) ⇒ Object 



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# File 'lib/localch_i18n/csv_to_yaml.rb', line 49

def store_translation(keys, locale, value)
  return nil if value.nil?    # we don't store keys that don't have a valid value
  # Google Spreadsheet does not export empty strings and therefore we use '_' as a replacement char.
  value = '' if value == '_'

  tree = keys[0...-1]
  leaf = keys.last
  data_hash = tree.inject(@translations[locale]) do |memo, k|
    if memo.has_key?(k)
      memo[k]
    else
      memo[k] = {}
    end
  end
  data_hash[leaf] = value
end

#write_files ⇒ Object 



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# File 'lib/localch_i18n/csv_to_yaml.rb', line 20

def write_files
  @locales.each do |locale|
    output_file_path = defined?(Rails) ? Rails.root.join('config', 'locales', locale, @output_file) : "#{locale}_#{@output_file}"
    File.open(output_file_path, 'w') do |file|
      final_translation_hash = {locale => @translations[locale]}
      file.puts YAML::dump(final_translation_hash)
    end
    puts "File '#{@output_file}' for language '#{locale}' written to disc (#{output_file_path})"
  end
end