examples/list_people.rb

   1 #! /usr/bin/env ruby
   2
   3 require './addressbook_pb'
   4 require 'pry'
   5
   6 # Iterates though all people in the AddressBook and prints info about them.
   7 def list_people(address_book)
   8   address_book.people.each do |person|
   9     puts "Person ID: #{person.id}"
  10     puts "  Name: #{person.name}"
  11     if person.email != ""
  12       puts "  Email: #{person.email}"
  13     end
  14
  15     person.phones.each do |phone_number|
  16       type =
  17         case phone_number.type
  18         when :MOBILE
  19           "Mobile phone"
  20         when :HOME
  21           "Home phone"
  22         when :WORK
  23           "Work phone"
  24         end
  25       puts "  #{type} #: #{phone_number.number}"
  26     end
  27   end
  28 end
  29
  30 # Main procedure:  Reads the entire address book from a file and prints all
  31 #   the information inside.
  32 if ARGV.length != 1
  33   puts "Usage: #{$PROGRAM_NAME} ADDRESS_BOOK_FILE"
  34   exit(-1)
  35 end
  36
  37 # Read the existing address book.
  38 f = File.open(ARGV[0], "rb")
  39 address_book = Tutorial::AddressBook.decode(f.read)
  40 f.close
  41
  42 list_people(address_book)