Comments on: Rails and Merb Merge: ORM Agnosticism (Part 5 of 6)

By: nike ctr360 maestri

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By: MarkMT

MarkMT — Sat, 06 Mar 2010 02:14:45 +0000

Yehuda – Everything I've seen written about Rails 3 is about how it enhances Rails 2.x. Can you please provide some insight into how Rails 3 differs from Merb 1.x? Does it offer any advantages?

By: Bennie

Bennie — Fri, 26 Feb 2010 07:39:53 +0000

A basic definition is hinted at in the name: "Rails tie", i.e., the code in Rails Core that ties parts of the framework together. Have a look yourself in the railties directory of the Rails source code. It goes to Github's page does not exist error page. Family Law Temecula

By: Mauricio Szabo

Mauricio Szabo — Thu, 25 Feb 2010 17:23:28 +0000

Last time I tried, DataMapper didn't worked on this kind of scenario… Don't know if supports now, through.

By: Sohan

Sohan — Thu, 25 Feb 2010 06:05:47 +0000

Your post is linked from www.DrinkRails.com

By: snusnu

snusnu — Wed, 24 Feb 2010 14:24:25 +0000

sasule,

That depends on the ORM that you use and has nothing to do with rails itself. Datamapper for one, supports this scenario. It allows you to setup models in different databases (each connected with the respective dm adapter) and relate these across those databases. I don't know if Sequel can do that too.

By: sasule

sasule — Wed, 24 Feb 2010 10:45:21 +0000

but will be possible merge different model like sequel and mongodb in relation onetomany?
For example:

Blog is a model sequel on mysql and Comment a Model in mongodb
and make this:

class Blog < Sequel::MODEL
has_many :comments
end

class Comment < MongoDB::MODEL
belongs_to :blog
end

By: cpetersen

cpetersen — Wed, 24 Feb 2010 07:01:24 +0000

Thanks for taking the time to explain the internals of Rails3. Quick question, does the new ActiveModel API assume a relational database? I'm really hoping for a Rails compliant CouchRest implementation.

By: Raphaël Valyi

Raphaël Valyi — Wed, 24 Feb 2010 02:48:30 +0000

Hello,

Again: isn't that a flaw that ActiveResource implements nothing of ActiveModel in Rails3 or did I miss something?

By: Philip Poots

Philip Poots — Tue, 23 Feb 2010 22:52:12 +0000

John, have a look at the first paragraph of the previous post in this series to get an idea of what Railties is. The post is located at Rails and Merb Merge: Rails Core (Part 4 of 6). A basic definition is hinted at in the name: "Rails tie", i.e., the code in Rails Core that ties parts of the framework together. Have a look yourself in the railties directory of the Rails source code.