[#390749] Why are there so many similar/identical methods in core classes — Kassym Dorsel <k.dorsel@...>

Let's look at the Array class and start with method aliases.

14 messages 2011/12/02

[#390755] Inverse Operation of Module#include — Su Zhang <su.comp.lang.ruby@...>

Hi list,

21 messages 2011/12/02
[#390759] Re: Inverse Operation of Module#include — Ryan Davis <ryand-ruby@...> 2011/12/02

[#390764] Re: Inverse Operation of Module#include — Isaac Sanders <isaacbfsanders@...> 2011/12/02

I would suggest an Adapter pattern use here. IF there is something that has

[#390795] Is there a better way to check this array? — Wayne Brissette <wbrisett@...>

I have an array which contains items that need to be renamed. Unfortunately the way things are changed are based on a comparison of if something else exists. For example in this simple array:

9 messages 2011/12/03

[#390876] black magical hash element vivification — Chad Perrin <code@...>

Ruby (1.9.3p0 to be precise, installed with RVM) is not behaving as I

12 messages 2011/12/05

[#390918] WEB SURVEY about Ruby Community — Intransition <transfire@...>

Did any one else get this survey request?

14 messages 2011/12/07

[#390972] Which is the best online document conversion site? — "Maria M." <mariamoore952@...>

Can anyone tell me that which is the best online document conversion

7 messages 2011/12/08

[#390976] Confusing results from string multiplication — Rob Marshall <robmarshall@...>

Hi,

19 messages 2011/12/08

[#391019] How can I do h["foo"] += "bar" if h["foo"] does not exist? — "Andrew S." <andrewinfosec@...>

Hi there,

13 messages 2011/12/09

[#391027] reading from file without end-of-lines — Janko Muzykant <umrzykus@...>

hi,

20 messages 2011/12/09
[#391028] Re: reading from file without end-of-lines — Gavin Sinclair <gsinclair@...> 2011/12/09

> i'm trying to read a few text values from single file:

[#391031] Re: reading from file without end-of-lines — Robert Klemme <shortcutter@...> 2011/12/09

On Fri, Dec 9, 2011 at 9:58 AM, Gavin Sinclair <gsinclair@gmail.com> wrote:

[#391042] Re: reading from file without end-of-lines — Gavin Sinclair <gsinclair@...> 2011/12/09

On Fri, Dec 9, 2011 at 8:18 PM, Robert Klemme

[#391135] I need advice on what to do next. — Nathan Kossaeth <system_freak_2004@...>

I am new to programming. I read the ebook "Learn to Program" by Chris

23 messages 2011/12/12

[#391216] perf optimization using profile results — Chuck Remes <cremes.devlist@...>

I need some help with optimizing a set of libraries that I use. They are ffi-rzmq, zmqmachine and rzmq_brokers (all up on github).

13 messages 2011/12/13
[#391218] Re: perf optimization using profile results — Chuck Remes <cremes.devlist@...> 2011/12/13

On Dec 13, 2011, at 9:57 AM, Chuck Remes wrote:

[#391234] Re: perf optimization using profile results — Charles Oliver Nutter <headius@...> 2011/12/14

A couple quick observations.

[#391238] Re: perf optimization using profile results — Chuck Remes <cremes.devlist@...> 2011/12/14

On Dec 13, 2011, at 7:03 PM, Charles Oliver Nutter wrote:

[#391324] ruby 1.9 threading performance goes non-linear — Joel VanderWerf <joelvanderwerf@...>

12 messages 2011/12/16
[#391325] Re: ruby 1.9 threading performance goes non-linear — Eric Wong <normalperson@...> 2011/12/16

Joel VanderWerf <joelvanderwerf@gmail.com> wrote:

[#391420] Accessing class instance variables from an instance? — "Shareef J." <shareef@...>

Hi there,

26 messages 2011/12/20
[#391454] Re: Accessing class instance variables from an instance? — Khat Harr <myphatproxy@...> 2011/12/21

Actually, now that I'm thinking about it the existing behavior sort of

[#391456] Re: Accessing class instance variables from an instance? — Josh Cheek <josh.cheek@...> 2011/12/21

On Tue, Dec 20, 2011 at 9:42 PM, Khat Harr <myphatproxy@hotmail.com> wrote:

[#391545] Kernel#exit raises an exception? — Khat Harr <myphatproxy@...>

While I was working on embedding an interpreter I wrote a function to

13 messages 2011/12/24

[#391618] rvmsh: An easy installer for RVM — Bryan Dunsmore <dunsmoreb@...>

I have recently begun work on a project called [rvmsh]

12 messages 2011/12/29

[#391783] Mailspam — Gunther Diemant <g.diemant@...>

Is there a way to stop this mailspam of Luca (Mail)?

12 messages 2011/12/29

[#391790] What’s the standard way of implementing #hash for value objects in Ruby? — Nikolai Weibull <now@...>

Hi!

23 messages 2011/12/29
[#391792] Re: What’s the standard way of implementing #hash for value objects in Ruby? — Gunther Diemant <g.diemant@...> 2011/12/29

I think you can't access instance variables from a class method, so

[#391793] Re: What’s the standard way of implementing #hash for value objects in Ruby? — Nikolai Weibull <now@...> 2011/12/29

On Thu, Dec 29, 2011 at 15:52, Gunther Diemant <g.diemant@gmx.net> wrote:

[#391811] Re: What’s the standard way of implementing #hash for value objects in Ruby? — Robert Klemme <shortcutter@...> 2011/12/29

On Thu, Dec 29, 2011 at 4:06 PM, Nikolai Weibull <now@bitwi.se> wrote:

[#391812] Re: What’s the standard way of implementing #hash for value objects in Ruby? — Nikolai Weibull <now@...> 2011/12/29

On Fri, Dec 30, 2011 at 00:26, Robert Klemme <shortcutter@googlemail.com> wrote:

[#391816] Re: What’s the standard way of implementing #hash for value objects in Ruby? — Josh Cheek <josh.cheek@...> 2011/12/30

On Thu, Dec 29, 2011 at 5:47 PM, Nikolai Weibull <now@bitwi.se> wrote:

[#391833] Re: What’s the standard way of implementing #hash for value objects in Ruby? — Robert Klemme <shortcutter@...> 2011/12/30

On Fri, Dec 30, 2011 at 12:47 AM, Nikolai Weibull <now@bitwi.se> wrote:

I: How to use csv files in ruby

From: "Luca \(Email\)" <luca.pagano@...>
Date: 2011-12-29 06:53:00 UTC
List: ruby-talk #391719

-----Messaggio originale-----
Da: Mrin alini [mailto:m.mrinali@gmail.com] 
Inviato: domenica 13 novembre 2011 21:48
A: ruby-talk ML
Oggetto: How to use csv files in ruby

I am able to write parts of the code but I am not able to join the code and
use loops. I am quite new to RUBY and trying to do this project.

We have a list of customers
We have a list of products.

The customer is asked if he is new or returning A new customer puts in his
information and the customer database is populated with his information if
new customer if existing customer, then with his name his details are pulled
from the database

Then he has to enter the shopping cart with the product names  and quantity,
Then from the product table, the price of the product table, the price of
the product and the total (quantity*price) is calculated in the end it
should print out the list of the products quantity price  total sum tax
shipping  and total= total sum+tax+shipping

all this information should be in a new csv file with the customer
information and saved in the folder.

this is what I have so far and I am freaking out.Its all over the place

require 'csv'
# Getting Information from the new customer and updating the csv file puts
"Are you a new cuntomer? y/n"
ans = gets.chomp
while ans == 'y' do

module CustomerRelated
class Customer
  def initialize( customer_id, fname, lname, address1, address2, city,
state, zip, ph_no)
  @fname = fname
  @lname = lname
  @address1 = address1
  @address1 = address1
  @city = city
  @state = state
  @zip = zip
  @ph_no = ph_no
  end


  puts "Enter first name"
  fname = gets.chomp
  puts "Enter last name"
  lname = gets.chomp
  puts "Enter your street address"
  address1= gets.chomp
  puts "Enter your House no./Apt no."
  address2= gets.chomp
  puts "Enter the City"
  city = gets.chomp
  puts "Enter the State"
  state = gets.chomp
  puts "Enter your Zip code"
  zip = gets.chomp
  puts "Enter your Phone Number"
  ph_no = gets.chomp

  #getting the customer data in the file
    CSV.open("customer.csv", "a") do |csv|
    #csv << ["First_Name", "Last_Name", "Address_1", "City" , "Zip" ,
"Ph_No"]
    csv << [fname, lname, address1, address2, city, state, zip, ph_no]


  end

end

puts "What is your First Name?"



class Sale
  def initialize( product_name, product_id, price, quantity, total_price,
tax, payment_type, shipping)

  @product_name = product_name
  @product_id = product_id
  @price = price
  @quantity = quantity
  @total_price = total_price
  @tax = tax
  @payment_type = payment_type
  @shipping = shipping

  end


  puts "Enter name of the product"
  product_name = gets.chomp
  puts "Enter the quantity"
  quantity = gets.chomp.to_i

  CSV.foreach("products.csv", "r") do |row|
    if product_name == row[1]
     product_id = row[0]
      price = row[2].to_f # fetch, convert from string, and store in `price
variable`
      total_price = (price * quantity)

  #getting the customer data in the file
    CSV.open("Shopping_list.csv", "a") do |csv|
    #csv << ["First_Name", "Last_Name", "Address_1", "City" , "Zip" ,
"Ph_No"]
    csv << [product_id, product_name, price, quantity, total_price]


  end

  puts "Do you have more products to add ? (y/n)?"
  answer = gets.chomp
  if answer = y then

  else
  #calculating shipping and tax
  sub_total=0
  puts "Your Sub total is"
  CSV.foreach("Shopping_list.csv", "r") do |row|
  sub_total= {for |x| do  row[4]


  puts "Enter your zip code"
  zip = gets.chomp

  CSV.foreach("zipcode.csv") do |row|
  if zipcode == row[0]

  shipping = row[1]

Attachments:
http://www.ruby-forum.com/attachment/6742/products.csv
http://www.ruby-forum.com/attachment/6743/customer.csv


--
Posted via http://www.ruby-forum.com/.


 
 
 --
 Caselle da 1GB, trasmetti allegati fino a 3GB e in piu' IMAP, POP3 e SMTP autenticato? GRATIS solo con Email.it http://www.email.it/f
 
 Sponsor:
 Conto Arancio al 4,20%. Soldi sempre disponibili, zero spese, aprilo in due minuti!
 Clicca qui: http://adv.email.it/cgi-bin/foclick.cgi?mid=11920&d=29-12

In This Thread

Prev Next