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What you need to do is 1. get your ResultSet's data source, i.e. what it gets the actual data from; in DBIC, this is a ResultSource object, and it's what you're describing when you're writing e.g.

package MyApp::Schema::Result::Artist;
use base qw/DBIx::Class::Core/;

# this ResultSource is going to be based on a table, not a view
__PACKAGE__->table('artist');
# the table has these columns
__PACKAGE__->add_columns(qw/ artistid name /);
# and this is the pkey
__PACKAGE__->set_primary_key('artistid');

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and then 2. get the pkey info from the ResultSource. So we get:

my $result_source = $schema->resultset('Artist')->result_source;
my @list_of_columns_in_pkey = $result_source->primary_columns;

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Edit: I just realized, I assumed you were starting from a ResultSet object, but if you already know its name beforehand:

my $result_source = $schema->source('Artist');
my @list_of_columns_in_pkey = $result_source->primary_columns;

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In reply to Re: retrieving primary key from a DBIx::Class package by pokki
in thread retrieving primary key from a DBIx::Class package by tomgracey

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