[#399938] how to read arrary with an array — "Richard D." <lists@...>

Hello. I believe this is basic question, but I'm just starting to learn

19 messages 2012/10/02

[#400050] img src while sending email ruby cgi — Ferdous ara <lists@...>

Hi

16 messages 2012/10/05

[#400351] Drop 1st and last particular character — ajay paswan <lists@...>

What is the most efficient way to drop '#' from the first place and last

15 messages 2012/10/16

[#400374] database part of a desktop application — "Sebastjan H." <lists@...>

Hi,

14 messages 2012/10/16
[#400375] Re: database part of a desktop application — Chad Perrin <code@...> 2012/10/16

On Wed, Oct 17, 2012 at 05:28:39AM +0900, Sebastjan H. wrote:

[#400377] Re: database part of a desktop application — sto.mar@... 2012/10/17

Am 16.10.2012 23:24, schrieb Chad Perrin:

[#400389] Re: database part of a desktop application — Chad Perrin <code@...> 2012/10/17

On Wed, Oct 17, 2012 at 01:39:21PM +0900, sto.mar@web.de wrote:

[#400386] Unable to send attachment, and dealing with multiple attachment — ajay paswan <lists@...>

Hi,

11 messages 2012/10/17

[#400454] Hash with Integer key issue — Wayne Simmerson <lists@...>

Hi Im new to Ruby and am getting some unexpected results from a

18 messages 2012/10/19

[#400535] Name/symbol/object type clash? What is happening here? — Todd Benson <caduceass@...>

It's nonsense code, but I'm curious as to what is going on behind the scenes...

41 messages 2012/10/23

[#400556] Calling a method foo() or an object foo.method_call_here - both — Marc Heiler <lists@...>

Hello.

13 messages 2012/10/24

[#400650] OpenSSL ECDSA public key from private — Nokan Emiro <uzleepito@...>

Hi,

11 messages 2012/10/27

[#400680] Passing folder as argument ARGV? — Joz Private <lists@...>

Is there an easy way to pass multiple files on the command line?

15 messages 2012/10/28
[#400681] Re: Passing folder as argument ARGV? — brad smith <bradleydsmith@...> 2012/10/28

How are you traversing the directory you pass in on the command line ?

[#400697] File.readable? and /proc — Jeff Moore <lists@...>

root@nail:/projects/proc_fs# uname -a

13 messages 2012/10/28

[#400714] Marshal.load weird issue — "Pierre J." <lists@...>

Hi guys

12 messages 2012/10/28

[#400781] bug?: local variable created in if modifier not available in modified expression — "Mean L." <lists@...>

irb(main):001:0> local1 if local1 = "created"

21 messages 2012/10/30
[#400807] Re: bug?: local variable created in if modifier not available in modified expression — Bartosz Dziewoński <matma.rex@...> 2012/10/31

Oh, and in case it wasn't apparent: you can just add

[#400808] Re: bug?: local variable created in if modifier not available in modified expression — Eliezer Croitoru <eliezer@...> 2012/10/31

On 10/31/2012 4:52 PM, Bartosz Dziewoナгki wrote:

[#400809] Re: bug?: local variable created in if modifier not available in modified expression — Robert Klemme <shortcutter@...> 2012/10/31

On Wed, Oct 31, 2012 at 4:28 PM, Eliezer Croitoru <eliezer@ngtech.co.il>wrote:

[#400784] REXML & HTMLentities incorrectly map to UTF-8 — "Mark S." <lists@...>

I have some XML data (UTF 8) that I'm trying to convert into another XML

13 messages 2012/10/30

Re: Models classes from CSVs

From: Florian Gilcher <flo@...>
Date: 2012-10-22 22:00:32 UTC
List: ruby-talk #400516
On Oct 22, 2012, at 11:33 PM, Todd Sanders <lists@ruby-forum.com> wrote:

> I have 8 csv dumps that I receive nightly.  I have to transform them
> into XML and FTP them.  So far I have been able to complete this task.
> Now the requirements are to match some records up between csv dumps.
>=20
> I did not want to load all the files into a database, as I only work
> with each nights data.  I thought I could convert the csv to a model
> after parsing it.  I am unable to find information on converting the =
CSV
> to active record or an active-model (not sure either one of these =
ideas
> are correct approach).

ActiveRecord requires a database. Persisting data in an SQL-database is
the whole point of the library.

ActiveModel is an interface that generalises common tasks with =
model-like data.
It works by giving you a general implementation in which you have to =
fill out the
blanks. ActiveRecord one of such implementations. Writing a =
fully-fledged=20
AM-implementation for a bit of CSV data might be a bit too much.

There are multiple approaches:

1) Just use plain old ruby objects and than match them by arranging the =
corresponding
objects in memory. Its a bit more legwork, but depending on your dataset =
size, it shouldn't
be too difficult.
2) If the task is more complex, why not connect ActiveRecord, DataMapper =
or Sequel to an=20
in-memory-SQLite database ("sqlite://:memory:", afaik)? This gives you =
all the power of the=20
corresponding lib, but without the headache of handling a DB server.

I hope this gives you a few pointers. Without knowing the actual tasks =
and the size of those=20
files, its hard to make good suggestions.

Regards,
Florian


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