Module: Mongoid::MoneyField::ClassMethods

Defined in:
lib/mongoid_money_field.rb

Instance Method Summary collapse

Instance Method Details

#money_field(*columns) ⇒ Object 



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# File 'lib/mongoid_money_field.rb', line 68

def money_field(*columns)
  money_field_with_options(columns, default: 0)
end

#money_field_with_options(columns, opts = {}) ⇒ Object 



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# File 'lib/mongoid_money_field.rb', line 12

def money_field_with_options(columns, opts = {})
  [columns].flatten.each do |name|
    opts = {fixed_currency: nil, default: nil}.merge(opts)

    if opts[:default].nil?
      default = nil
      default_currency = ::Money.default_currency.iso_code if opts[:fixed_currency].nil?
    else
      default_money = Money.parse(opts[:default])
      default = default_money.cents
      default_currency = default_money.currency.iso_code if opts[:fixed_currency].nil?
    end

    attr_cents = (name.to_s + '_cents').to_sym
    field attr_cents, type: Integer, default: default

    if opts[:fixed_currency].nil?
      attr_currency = (name.to_s + '_currency').to_sym
      field attr_currency, type: String,  default: default_currency
    end

    define_method(name) do
      cents = read_attribute(attr_cents)

      if opts[:fixed_currency].nil?
        currency = read_attribute(attr_currency)
      else
        currency = opts[:fixed_currency]
      end

      if cents.nil?
        nil
      else
        Money.new(cents, currency || ::Money.default_currency)
      end
    end

    define_method("#{name}=") do |value|
      if value.blank?
        write_attribute(attr_cents, nil)
        if opts[:fixed_currency].nil?
          write_attribute(attr_currency, nil)
        end
        nil
      else
        money = value.to_money
        write_attribute(attr_cents, money.cents)
        if opts[:fixed_currency].nil?
          write_attribute(attr_currency, money.currency.iso_code)
        end
        money
      end
    end
  end
end

#money_field_without_default(*columns) ⇒ Object 



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# File 'lib/mongoid_money_field.rb', line 72

def money_field_without_default(*columns)
  money_field_with_options(columns)
end