Re: many-to-many w/ attributes

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My apologies -- I should have put an example of the typical many-to-many
w/ attributes that I always see.  A couple examples from data I have
recently modeled: 
 
 
create table srna_sequence (
  id                    INT NOT NULL PRIMARY KEY,
  ... more columns ...
);
 
create table precursor (
  id                    INT NOT NULL PRIMARY KEY,
  ... more columns ...
);
 
create table srna_sequence_precursor_location (
  srna_sequence_id      INT NOT NULL,
  precursor_id          INT NOT NULL,
  arm                   VARCHAR(30) NOT NULL,
  position              INT NOT NULL
);
 
-- or --
 
create table experiment (
  id                    INT NOT NULL PRIMARY KEY,
  ... more columns ...
);
 
create table sample (
  id                    INT NOT NULL PRIMARY KEY,
  ... more columns ...
);
 
create table experiment_sample (
  experiment_id         INT NOT NULL,
  sample_id             INT NOT NULL,
  ordinal_position      INT NOT NULL
);
 
 
So for many-to-many w/ attributes like these, is the example on
http://dbix-class.shadowcatsystems.co.uk/index.cgi?ManyToManyWithAttribu
tes the recommended way to set up using the latest DBIx::Class 0.07002?
 
Leandro
 


________________________________

From: dbix-class-bounces@xxxxxxxxxxxxxxxxx on behalf of Matt S Trout
Sent: Fri 9/15/2006 10:47 PM
To: dbix-class@xxxxxxxxxxxxxxxxx
Subject: Re: [Dbix-class] many-to-many w/ attributes



Hermida, Leandro wrote:
> Hello,
> 
> Is the example shown in
>
http://dbix-class.shadowcatsystems.co.uk/index.cgi?ManyToManyWithAttribu
tes still
> the recommended way to set up many-to-many with attributes when using
> DBIx::Class 0.07002?

It's *a* way that works.

It's impossible to say whether it's what we'd recommend when you've
given us
no information at all about your design contraints :)

--
      Matt S Trout       Offering custom development, consultancy and
support
   Technical Director    contracts for Catalyst, DBIx::Class and BAST.
Contact
Shadowcat Systems Ltd.  mst (at) shadowcatsystems.co.uk for more
information

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