On 12/28/05, John Siracusa <[EMAIL PROTECTED]> wrote:
> All tests pass for me in Pg 8.1. I was able to reproduce your errors by
> downgrading my Pg to 7.4.7, and I'll work on fixing them for the next
> release.
Thanks John,
Just a little bit more info on the sequence failures. I ran into the
same problem when trying to create new records in my code:
update() - DBD::Pg::st execute failed: ERROR: null value in column
"id" violates not-null constraint
It can't figure out what the sequence is, and tries to insert a NULL
into the primary key column. I worked around it by specifying the
sequence directly in my Object class:
__PACKAGE__->meta->primary_key_sequence_names('pages_id_seq');
Here are the details of my setup in case it helps:
CREATE TABLE pages (
id serial PRIMARY KEY,
name varchar(100),
title varchar(200),
content text,
UNIQUE (name)
);
package My::DB::Page;
use strict;
use My::DB::Object;
our @ISA = qw(My::DB::Object);
__PACKAGE__->meta->table('pages');
__PACKAGE__->meta->columns(
id => { type => 'integer', not_null => 1 },
name => { type => 'varchar', length => 100 },
title => { type => 'varchar', length => 200 },
content => { type => 'text' },
);
__PACKAGE__->meta->primary_key_sequence_names('pages_id_seq');
__PACKAGE__->meta->primary_key_columns([ 'id' ]);
__PACKAGE__->meta->add_unique_keys([ 'name' ]);
__PACKAGE__->meta->initialize;
1;
Everything in there was generated by Rose::DB::Object, except for the
'primary_key_sequence_names' which I added manually. I noticed that
if the call to 'primary_key_sequence_names' occurs after the call to
'primary_key_columns' I end up getting [undef, 'id'] as my sequence.
I guess this is another hint at what is happening.
'primary_key_columns' is setting the sequence to [undef] and
'primary_key_sequence_names' is adding to the end of it.
I am guessing that upgrading to Pg 8.0 or 8.1 would probably solve
this, but I think it should work with 7.4 as well.
I have tried to track this problem down in the code, but the sequence
generation seems to jump around a lot, and I couldn't figure it out.
Hope this helps...
Cheers,
Cees
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