Module: YeshuaCrm::Currency::Formatting

Included in:
YeshuaCrm::Currency
Defined in:
lib/yeshua_crm/currency/formatting.rb

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.define_i18n_method(method, name, character) ⇒ Object 



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# File 'lib/yeshua_crm/currency/formatting.rb', line 14

def self.define_i18n_method(method, name, character)
  define_method(method) do
    if self.class.use_i18n
      begin
        I18n.t name, :scope => "number.currency.format", :raise => true
      rescue I18n::MissingTranslationData
        I18n.t name, :scope =>"number.format", :default => (currency.send(method) || character)
      end
    else
      currency.send(method) || character
    end
  end
  alias_method name, method
end

.included(base) ⇒ Object 



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# File 'lib/yeshua_crm/currency/formatting.rb', line 5

def self.included(base)
  [
    [:thousands_separator, :delimiter, ","],
    [:decimal_mark, :separator, "."]
  ].each do |method, name, character|
    define_i18n_method(method, name, character)
  end
end

Instance Method Details

#default_formatting_rules ⇒ Object 



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# File 'lib/yeshua_crm/currency/formatting.rb', line 116

def default_formatting_rules
  {
    :decimal_mark =>".",
    :thousands_separator => ",",
    :subunit_to_unit => 100
  }
end

#format(value, currency, *rules) ⇒ Object 



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# File 'lib/yeshua_crm/currency/formatting.rb', line 29

def format(value, currency, *rules)
  # support for old format parameters
  rules = normalize_formatting_rules(rules)
  if currency
    rules = self.localize_formatting_rules(rules, currency)
    rules = self.translate_formatting_rules(rules, currency.code) if rules[:translate]
    rules[:decimal_mark] = currency.decimal_mark if rules[:decimal_mark].nil?
    rules[:decimal_places] = currency.decimal_places
    rules[:subunit_to_unit] = currency.subunit_to_unit
    rules[:thousands_separator] = currency.thousands_separator if rules[:thousands_separator].nil?
  end
  rules = Currency.default_formatting_rules.merge(rules){|key, v1, v2| v2.nil? ? v1 : v2}

  # if fractional == 0
  if rules[:display_free].respond_to?(:to_str)
    return rules[:display_free]
  elsif rules[:display_free]
    return "free"
  end
  # end

  symbol_value = currency.try(:symbol) || ""

  formatted = value.abs.to_s

  # if rules[:rounded_infinite_precision]
  if currency
    formatted.gsub!(/#{rules[:decimal_mark]}/, '.') unless '.' == rules[:decimal_mark]
    formatted = ((BigDecimal(formatted) * currency.subunit_to_unit).round / BigDecimal(currency.subunit_to_unit.to_s)).to_s("F")
    formatted.gsub!(/\..*/) do |decimal_part|
      decimal_part << '0' while decimal_part.length < (currency.decimal_places + 1)
      decimal_part
    end
    formatted.gsub!(/\./, rules[:decimal_mark]) unless '.' == rules[:decimal_mark]
  end

  sign = value < 0 ? '-' : ''

  if rules[:no_cents] || (rules[:no_cents_if_whole] && cents % currency.subunit_to_unit == 0)
    formatted = "#{formatted.to_i}"
  end

  # thousands_separator_value = currency.thousands_separator
  # Determine thousands_separator
  if rules.has_key?(:thousands_separator)
    thousands_separator_value = rules[:thousands_separator] || ''
  end
  decimal_mark = rules[:decimal_mark]
  # Apply thousands_separator
  formatted.gsub!(regexp_format(formatted, rules, decimal_mark, symbol_value),
                  "\\1#{thousands_separator_value}")

  symbol_position = symbol_position_from(rules, currency) if currency

  if rules[:sign_positive] == true && (value >= 0)
    sign = '+'
  end

  if rules[:sign_before_symbol] == true
    sign_before = sign
    sign = ''
  end

  if symbol_value && !symbol_value.empty?
    symbol_value = "<span class=\"currency_symbol\">#{symbol_value}</span>" if rules[:html_wrap_symbol]
    formatted = if symbol_position == :before
      symbol_space = rules[:symbol_before_without_space] === false ? " " : ""
      "#{sign_before}#{symbol_value}#{symbol_space}#{sign}#{formatted}"
    else
      symbol_space = rules[:symbol_after_without_space] ? "" : " "
      "#{sign_before}#{sign}#{formatted}#{symbol_space}#{symbol_value}"
    end
  else
    formatted="#{sign_before}#{sign}#{formatted}"
  end

  # apply_decimal_mark_from_rules(formatted, rules)

  if rules[:with_currency]
    formatted << " "
    formatted << '<span class="currency">' if rules[:html]
    formatted << currency.to_s
    formatted << '</span>' if rules[:html]
  end
  formatted
end

#localize_formatting_rules(rules, currency) ⇒ Object 



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# File 'lib/yeshua_crm/currency/formatting.rb', line 147

def localize_formatting_rules(rules, currency)
  if currency.iso_code == "JPY" && I18n.locale == :ja
    rules[:symbol] = "円" unless rules[:symbol] == false
    rules[:symbol_position] = :after
    rules[:symbol_after_without_space] = true
  elsif currency.iso_code == "CHF"
    rules[:symbol_before_without_space] = false
  end
  rules
end

#regexp_format(formatted, rules, decimal_mark, symbol_value) ⇒ Object 



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# File 'lib/yeshua_crm/currency/formatting.rb', line 124

def regexp_format(formatted, rules, decimal_mark, symbol_value)
  regexp_decimal = Regexp.escape(decimal_mark)
  if rules[:south_asian_number_formatting]
    /(\d+?)(?=(\d\d)+(\d)(?:\.))/
  else
    # Symbols may contain decimal marks (E.g "դր.")
    if formatted.sub(symbol_value.to_s, "") =~ /#{regexp_decimal}/
      /(\d)(?=(?:\d{3})+(?:#{regexp_decimal}))/
    else
      /(\d)(?=(?:\d{3})+(?:[^\d]{1}|$))/
    end
  end
end

#symbol_position_from(rules, currency) ⇒ Object 



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# File 'lib/yeshua_crm/currency/formatting.rb', line 176

def symbol_position_from(rules, currency)
  if rules.has_key?(:symbol_position)
    if [:before, :after].include?(rules[:symbol_position])
      return rules[:symbol_position]
    else
      raise ArgumentError, ":symbol_position must be ':before' or ':after'"
    end
  elsif currency.symbol_first?
    :before
  else
    :after
  end
end

#symbol_value_from(rules) ⇒ Object 



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# File 'lib/yeshua_crm/currency/formatting.rb', line 158

def symbol_value_from(rules)
  if rules.has_key?(:symbol)
    if rules[:symbol] === true
      symbol
    elsif rules[:symbol]
      rules[:symbol]
    else
      ""
    end
  elsif rules[:html]
    currency.html_entity == '' ? currency.symbol : currency.html_entity
  elsif rules[:disambiguate] and currency.disambiguate_symbol
    currency.disambiguate_symbol
  else
    symbol
  end
end

#translate_formatting_rules(rules, iso_code) ⇒ Object 



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# File 'lib/yeshua_crm/currency/formatting.rb', line 138

def translate_formatting_rules(rules, iso_code)
  begin
    rules[:symbol] = I18n.t iso_code, :scope => "number.currency.symbol", :raise => true
  rescue I18n::MissingTranslationData
    # Do nothing
  end
  rules
end