[#363639] Parsing geonames — 12 34 <rubyforum@...>

A Ruby newbie having trouble getting results back from geonames

16 messages 2010/06/02
[#363641] Re: Parsing geonames — Michael Fellinger <m.fellinger@...> 2010/06/02

On Wed, Jun 2, 2010 at 2:57 PM, 12 34 <rubyforum@web.knobby.ws> wrote:

[#363642] Re: Parsing geonames — 12 34 <rubyforum@...> 2010/06/02

Michael Fellinger wrote:

[#363646] installation issue with Ruby gems on Ubuntu 8.04 — Santosh Dvn <santoshdvn@...>

Hi I am installing ruby gems on ubuntu 8.04 .. while installing i got

14 messages 2010/06/02

[#363662] having a class method called only one time ? — unbewusst.sein@... (Une B騅ue)

I'd like having a class method called only one time ?

12 messages 2010/06/02

[#363756] comparing objects — Anderson Leite <andersonlfl@...>

How can I compare two objects and get true if some of his atributes are

48 messages 2010/06/03
[#364122] Re: comparing objects — Rein Henrichs <reinh@...> 2010/06/10

On 2010-06-10 06:59:40 -0700, Robert Dober said:

[#363764] Documenting Ruby 1.9: Ebook or Wiki? — Run Paint Run Run <runrun@...>

I'm writing a free ebook about Ruby 1.9 at http://ruby.runpaint.org/ .

17 messages 2010/06/04
[#363765] Re: Documenting Ruby 1.9: Ebook or Wiki? — Mohit Sindhwani <mo_mail@...> 2010/06/04

On 4/6/2010 11:30 AM, Run Paint Run Run wrote:

[#363775] Looking for ORM for 'legacy' database. — Dave Howell <groups.2009a@...>

I feel I should start with some pre-emptive apologies. I used to =

28 messages 2010/06/04
[#363895] Re: Looking for ORM for 'legacy' database. — Phrogz <phrogz@...> 2010/06/06

On Jun 4, 3:29=A0am, Dave Howell <groups.20...@grandfenwick.net> wrote:

[#363975] Re: Looking for ORM for 'legacy' database. — Dave Howell <groups.2009a@...> 2010/06/07

[#363883] inject method of Array class — RichardSchollar <richardgschollar@...>

I have only just started using Ruby (and am a total noob, in case this

14 messages 2010/06/06

[#363944] Complex numbers contradiction? — Andrew Duncan <andrew.duncan@...>

This looks correct:

13 messages 2010/06/07
[#363951] Re: Complex numbers contradiction? — Robert Dober <robert.dober@...> 2010/06/07

On Mon, Jun 7, 2010 at 9:01 PM, Andrew Duncan <andrew.duncan@sonos.com> wrote:

[#364010] Rubyzip - `dup': can't dup NilClass (TypeError) — Luka Stolyarov <lukich@...>

Hello. I've trying to figure out rubyzip. Here's the code I had:

11 messages 2010/06/08

[#364101] Why private #binding? — Intransition <transfire@...>

Why is #binding a private method? I end up doing a lot of this:

13 messages 2010/06/10

[#364268] State of the union for Ruby CLI libraries? — John Feminella <johnf@...>

I am starting construction on a somewhat complicated internal

18 messages 2010/06/13

[#364273] Loading a module without polluting my namespace — Hagbard Celine <sin3141592@...>

Hey folks!

20 messages 2010/06/13

[#364330] shorthand — Roger Pack <rogerpack2005@...>

I read this once:

14 messages 2010/06/14

[#364342] Placement of require() and missing symbols — Eric MSP Veith <eveith@...>

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16 messages 2010/06/15
[#364365] Re: Placement of require() and missing symbols — Kirk Haines <wyhaines@...> 2010/06/15

On Mon, Jun 14, 2010 at 7:18 PM, Eric MSP Veith

[#364371] datamapper blues — Martin DeMello <martindemello@...>

I'm investigating the use of DataMapper to convert an old project with

14 messages 2010/06/15

[#364402] Getting rid of self — Ralph Shnelvar <ralphs@...32.com>

22 messages 2010/06/16
[#364440] Re: Getting rid of self — Josh Cheek <josh.cheek@...> 2010/06/16

On Wed, Jun 16, 2010 at 4:31 AM, Ralph Shnelvar <ralphs@dos32.com> wrote:

[#364415] Android apps using ruby — Lakshmanan Muthukrishnan <lakshmanan@...>

Hi,

16 messages 2010/06/16
[#364439] Re: Android apps using ruby — Andrew Kaspick <akaspick@...> 2010/06/16

Lakshmanan Muthukrishnan wrote:

[#364479] Re: Android apps using ruby — Lakshmanan Muthukrishnan <lakshmanan@...> 2010/06/17

Andrew Kaspick wrote:

[#364496] nothing new in ruby_core for four days ? — Michel Demazure <michel@...>

The Ruby Core forum has no new entry since four days ago.

15 messages 2010/06/17
[#364498] Re: nothing new in ruby_core for four days ? — Brian Candler <b.candler@...> 2010/06/17

Michel Demazure wrote:

[#364529] Dear gem: still no zlib. — Dave Howell <groups.2009a@...>

I really really regret ever installing SnowLeopard.=20

16 messages 2010/06/17

[#364580] String comparison. Why does Ruby consider this true? — Abder-rahman Ali <abder.rahman.ali@...>

When I try for example to compare the following strings in Ruby, I get

13 messages 2010/06/18
[#364584] Re: String comparison. Why does Ruby consider this true? — Josh Cheek <josh.cheek@...> 2010/06/18

On Fri, Jun 18, 2010 at 12:46 PM, Abder-rahman Ali <

[#364628] Random Points within a Circle (#234) — Daniel Moore <yahivin@...>

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21 messages 2010/06/19
[#364696] Re: [QUIZ] Random Points within a Circle (#234) — Caleb Clausen <vikkous@...> 2010/06/21

On 6/19/10, Daniel Moore <yahivin@gmail.com> wrote:

[#364641] Namespacing a class — Eric MSP Veith <eveith@...>

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18 messages 2010/06/20

[#364815] Count substrings in string, scan too slow — Danny Challis <dannychallis@...>

Hello everyone,

18 messages 2010/06/24
[#364817] Re: Count substrings in string, scan too slow — Jes俍 Gabriel y Gal疣 <jgabrielygalan@...> 2010/06/24

On Thu, Jun 24, 2010 at 5:04 PM, Danny Challis <dannychallis@gmail.com> wro=

[#364825] Re: Count substrings in string, scan too slow — Robert Klemme <shortcutter@...> 2010/06/24

2010/6/24 Jes=FAs Gabriel y Gal=E1n <jgabrielygalan@gmail.com>:

[#364850] Happy Intransition Day! — Ryan Davis <ryand-ruby@...>

Happy Intransition Day!

23 messages 2010/06/24

[#364930] Ruby in JavaScript, all projects are dead? — Alexey Petrushin <axyd80@...>

Hello, recently I've examined some of the projects that trying to bring

18 messages 2010/06/27

[#364988] Reading String Data as a File — Doug Jolley <ddjolley@...>

I use Net::HTTP to collect some data as a string. I now need to pass

25 messages 2010/06/29
[#364989] Re: Reading String Data as a File — Ryan Davis <ryand-ruby@...> 2010/06/29

[#364996] Re: Reading String Data as a File — Brian Candler <b.candler@...> 2010/06/29

Ryan Davis wrote:

[#365016] Re: Reading String Data as a File — Doug Jolley <ddjolley@...> 2010/06/29

> If it takes only a pathname argument, then you're

[#365024] Re: Reading String Data as a File — Tony Arcieri <tony.arcieri@...> 2010/06/29

On Tue, Jun 29, 2010 at 11:50 AM, Doug Jolley <ddjolley@gmail.com> wrote:

[#365036] Re: Reading String Data as a File — Robert Klemme <shortcutter@...> 2010/06/30

2010/6/29 Tony Arcieri <tony.arcieri@medioh.com>:

[#365049] Re: Reading String Data as a File — Brian Candler <b.candler@...> 2010/06/30

Robert Klemme wrote:

[#365039] pathname.rb:270: warning: `*' interpreted as argument prefix — "R.. Kumar 1.9.1 OSX" <sentinel1879@...>

/opt/local/lib/ruby1.9/1.9.1/pathname.rb:270: warning: `*' interpreted

12 messages 2010/06/30
[#365048] Re: pathname.rb:270: warning: `*' interpreted as argument prefix — Josh Cheek <josh.cheek@...> 2010/06/30

On Wed, Jun 30, 2010 at 6:11 AM, R.. Kumar 1.9.1 OSX <sentinel1879@gmail.com

Re: datamapper blues

From: "Dan Kubb (dkubb)" <dan.kubb@...>
Date: 2010-06-16 17:50:04 UTC
List: ruby-talk #364437
> I've ranted about this elsewhere, so I'll keep this short, but I urge you to not be misled by the word "legacy."

This thread was started by someone having problems using an ORM with a
legacy schema, so that's what we've been discussing mostly. However,
this problem can be more generally classified as an issue with
controlling the mapping between an existing schema and ruby classes.

> I've just started working on a brand new database project for a client, and I ended up using Sequel instead of Datamapper or ActiveRecord because it looked like it would be much easier to support the full PostgreSQL feature set with Sequel.

Sequel is a fine ORM, and is very well designed. If it meets your
needs, then I think that's great. It's probably better if you want to
work at a layer closer to the database, and work with SQL more
directly.

You're also correct that ActiveRecord probably won't support arbitrary
schemas. However DataMapper should be able to map to most existing
schemas, since the table name and column names can be overridden as
needed. It also provides a default naming convention layer, but you
can even override that and provide your own code.

> While it's very clear that, at least among Ruby fans, my 'database first' approach isn't very common, I do know that I'm not the only person who designs this way.

It probably isn't very common since ActiveRecord is probably used by
10x more people than DataMapper or Sequel.

> I was really really surprised when I first realized that none of the major ORMs I looked at were clever enough to figure out that, if the DB engine calls a column a Primary Key, then, um, it's the Primary Key.

DataMapper makes no assumptions about what should be the PK or not. It
trusts whatever you tell it about the mapping/types and acts
accordingly. You can even specify different names for the columns in
ruby as in the DB, eg:

  property :table_id, Serial, :field => 'tableID'

If this wasn't clear from the DataMapper documentation, that's our
failing not yours. We need to start documenting how the mapping works
better, and show people how most schemas can be handled, and you can
use specific naming conventions in your ruby code and schema while
maintaining loose coupling between them.

--

Dan

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