=item .. insert many rows of data efficiently?
+The C<populate> method in L<DBIx::Class::ResultSet> provides
+efficient bulk inserts.
+
=item .. update a collection of rows at the same time?
Create a resultset using a search, to filter the rows of data you
=back
+=head2 Custom methods in Result classes
+
+You can add custom methods that do arbitrary things, even to unrelated tables.
+For example, to provide a C<< $book->foo() >> method which searches the
+cd table, you'd could add this to Book.pm:
+
+ sub foo {
+ my ($self, $col_data) = @_;
+ return $self->result_source->schema->resultset('cd')->search($col_data);
+ }
+
+And invoke that on any Book Result object like so:
+
+ my $rs = $book->foo({ title => 'Down to Earth' });
+
+When two tables ARE related, L<DBIx::Class::Relationship::Base> provides many
+methods to find or create data in related tables for you. But if you want to
+write your own methods, you can.
+
+For example, to provide a C<< $book->foo() >> method to manually implement
+what create_related() from L<DBIx::Class::Relationship::Base> does, you could
+add this to Book.pm:
+
+ sub foo {
+ my ($self, $relname, $col_data) = @_;
+ return $self->related_resultset($relname)->create($col_data);
+ }
+
+Invoked like this:
+
+ my $author = $book->foo('author', { name => 'Fred' });
+
=head2 Misc
=over 4
using the tips in L<DBIx::Class::Manual::Cookbook/"Skip row object creation for faster results">
and L<DBIx::Class::Manual::Cookbook/"Get raw data for blindingly fast results">
+=item How do I override a run time method (e.g. a relationship accessor)?
+
+If you need access to the original accessor, then you must "wrap around" the original method.
+You can do that either with L<Moose::Manual::MethodModifiers> or L<Class::Method::Modifiers>.
+The code example works for both modules:
+
+ package Your::Schema::Group;
+ use Class::Method::Modifiers;
+
+ # ... declare columns ...
+
+ __PACKAGE__->has_many('group_servers', 'Your::Schema::GroupServer', 'group_id');
+ __PACKAGE__->many_to_many('servers', 'group_servers', 'server');
+
+ # if the server group is a "super group", then return all servers
+ # otherwise return only servers that belongs to the given group
+ around 'servers' => sub {
+ my $orig = shift;
+ my $self = shift;
+
+ return $self->$orig(@_) unless $self->is_super_group;
+ return $self->result_source->schema->resultset('Server')->all;
+ };
+
+If you just want to override the original method, and don't care about the data
+from the original accessor, then you have two options. Either use
+L<Method::Signatures::Simple> that does most of the work for you, or do
+it the "dirty way".
+
+L<Method::Signatures::Simple> way:
+
+ package Your::Schema::Group;
+ use Method::Signatures::Simple;
+
+ # ... declare columns ...
+
+ __PACKAGE__->has_many('group_servers', 'Your::Schema::GroupServer', 'group_id');
+ __PACKAGE__->many_to_many('servers', 'group_servers', 'server');
+
+ # The method keyword automatically injects the annoying my $self = shift; for you.
+ method servers {
+ return $self->result_source->schema->resultset('Server')->search({ ... });
+ }
+
+The dirty way:
+
+ package Your::Schema::Group;
+ use Sub::Name;
+
+ # ... declare columns ...
+
+ __PACKAGE__->has_many('group_servers', 'Your::Schema::GroupServer', 'group_id');
+ __PACKAGE__->many_to_many('servers', 'group_servers', 'server');
+
+ *servers = subname servers => sub {
+ my $self = shift;
+ return $self->result_source->schema->resultset('Server')->search({ ... });
+ };
+
=back
=head2 Notes for CDBI users
second one will use a default port of 5433, while L<DBD::Pg> is compiled with a
default port of 5432.
-You can chance the port setting in C<postgresql.conf>.
+You can change the port setting in C<postgresql.conf>.
=item I've lost or forgotten my mysql password