class InvoiceNumber::Builder

Attributes

placeholder[RW]
prefix[RW]

Public Class Methods

new(options = {}) click to toggle source
# File lib/invoice_number/builder.rb, line 6
def initialize(options = {})
  @prefix = options[:prefix] || 'INVOICE'
  @placeholder = options[:placeholder] || '0000000'
end

Public Instance Methods

create(last_number = nil) click to toggle source
# File lib/invoice_number/builder.rb, line 11
def create(last_number = nil)
  if last_number.present?
    new_number = inc_invoice_number(last_number)
    if new_number.present?
      return "#{prefix}-#{placeholder[(new_number.to_s.size)..(placeholder.size)]}#{new_number}"
    end
  else
    return "#{prefix}-0000001"
  end
end

Private Instance Methods

inc_invoice_number(last_number) click to toggle source
# File lib/invoice_number/builder.rb, line 24
def inc_invoice_number(last_number)
  last_number.split(/#{prefix}-/).at(1).to_i + 1
end