Created
February 7, 2013 00:12
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CSV In, CSV Out
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require 'csv' | |
require 'date' | |
FILENAME = "people.csv" | |
NEW_FILE = "new_people.csv" | |
class Person | |
attr_reader :id, :first_name, :last_name, :email, :phone, :created_at | |
# id,first_name,last_name,email,phone,created_at | |
def initialize(person_info) | |
default_options = { | |
"created_at" => DateTime.now | |
} | |
options = person_info.merge(default_options) | |
@id = options["id"] | |
@first_name = options["first_name"] | |
@last_name = options["last_name"] | |
@email = options["email"] | |
@phone = options["phone"] | |
@created_at = options["created_at"] | |
end | |
def to_array | |
[@id, @first_name, @last_name, @email, @phone, @created_at] | |
end | |
end | |
class PersonParser | |
def initialize(filename) | |
@people = [] | |
CSV.foreach(filename, :headers => :first_row) do |row| | |
@people << Person.new(row.to_hash) | |
end | |
end | |
def people | |
@people | |
end | |
# person_parse.add_person({:id => 2, :first_name => "Abi"}) | |
def add_person(new_person) | |
@people << new_person | |
end | |
def save | |
CSV.open(NEW_FILE, "wb", :headers => :first_row) do |csv| | |
@people.each do |person| | |
csv << person.to_array | |
end | |
end | |
end | |
end | |
parser = PersonParser.new(FILENAME) | |
puts parser.people | |
new_person = { | |
"id" => 201, | |
"first_name" => "Bill", | |
"last_name" => "Hicks", | |
"email" => "[email protected]", | |
"phone" => "415-708-9256" | |
} | |
parser.add_person Person.new(new_person) | |
parser.save |
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