Class Employee Example

employee.rb

#!/usr/bin/ruby
# Find users in the Employee hash by using their last name + first name (needs to be unique)
class Employee
  attr_reader :f_name, :l_name, :email, :phone
  EMPLOYEE  = {}
  AREA_CODE = 555 # This is just to generate number in a specific area code
  PROMPT    = '> '
  def initialize(f_name, l_name, email, phone)
     @f_name = f_name
     @l_name = l_name
     @email  = email
     @phone  = phone
  end

  def get_id
    @id = EMPLOYEE.count
  end

  def generate_number
    number = "#{AREA_CODE}-#{rand.to_s[2..8].insert(3, '-')}"
  end

  def add
    EMPLOYEE[@l_name + @f_name] = {:first => @f_name,
                                   :last  => @l_name,
                                   :email => @email,
                                   :phone => @phone,
                                   :id    => get_id
                                  }
  end

  def info
    puts "First Name:    #{EMPLOYEE[@l_name + @f_name][:first]}"
    puts "Last Name:     #{EMPLOYEE[@l_name + @f_name][:last]}"
    puts "Email Address: #{EMPLOYEE[@l_name + @f_name][:email]}"
    puts "Phone Number:  #{EMPLOYEE[@l_name + @f_name][:phone]}"
    puts "ID:            #{EMPLOYEE[@l_name + @f_name][:id]}"
  end

  def write_files
    # This would write specific details to specified files
    # For instance, you could make one file (employees.txt) with all the user's information
    # In addition to writting the data to seperate files (f_name.txt, l_name.txt, etc)
  end

  # If you want to explicitly add users
  # Of course we could make a script to add users from other files
  def self.add_user
    puts "First Name:"
    print PROMPT
    f_name = gets.chomp

    puts "Last Name:"
    print PROMPT
    l_name = gets.chomp

    puts "Email Address:"
    print PROMPT
    email = gets.chomp

    puts "Phone Number:"
    print PROMPT
    phone = gets.chomp

    EMPLOYEE[l_name + f_name] = {:first   => f_name,
                                   :last  => l_name,
                                   :email => email,
                                   :phone => phone,
                                   :id    => EMPLOYEE.count
                                  }
  end

  def remove_user
    # Here you could have code to remove a user
    # It could be as simple as dropping the user from the EMPLOYEE hash via their user ID
  end

  def self.find_user
    puts "Enter the users last name combined with the first name."
    puts "For example, user John Deer's information would be found with: DeerJohn"
    print PROMPT
    query = gets.chomp
    puts "First Name:    #{EMPLOYEE[query][:first]}"
    puts "Last Name:     #{EMPLOYEE[query][:last]}"
    puts "Email Address: #{EMPLOYEE[query][:email]}"
    puts "Phone Number:  #{EMPLOYEE[query][:phone]}"
    puts "ID:            #{EMPLOYEE[query][:id]}"
  end

  #If you want to add a new user
  add_user
  #Find information on a user
  find_user
end

ninjex = Employee.new('Ninjex', 'L33T', '[email protected]', '911')
ninjex.add # This could be done automagically, we don't explicitly need to call it
ninjex.info

limdis = Employee.new('limdis', 'F0x', '[email protected]', '911')
limdis.add
limdis.info