use strict;
use warnings;
-use Carp qw/croak/;
-use UNIVERSAL::require;
+use Carp::Clan qw/^DBIx::Class/;
use base qw/DBIx::Class/;
-__PACKAGE__->load_components(qw/Exception/);
__PACKAGE__->mk_classdata('class_mappings' => {});
__PACKAGE__->mk_classdata('source_registrations' => {});
__PACKAGE__->mk_classdata('storage_type' => '::DBI');
__PACKAGE__->load_components(qw/PK::Auto::Pg Core/); # for example
__PACKAGE__->table('foo');
+ # Elsewhere in your code:
my $schema1 = My::Schema->connect(
$dsn,
$user,
=head1 METHODS
-=head2 register_class <moniker> <component_class>
+=head2 register_class
+
+=head3 Arguments: <moniker> <component_class>
Registers a class which isa ResultSourceProxy; equivalent to calling
$self->register_source($moniker => $to_register->result_source_instance);
}
-=head2 register_source <moniker> <result source>
+=head2 register_source
+
+=head3 Arguments: <moniker> <result source>
Registers the result source in the schema with the given moniker
# if we got here, they probably passed a full class name
my $mapped = $self->class_mappings->{$moniker};
- croak "Can't find source for ${moniker}"
+ $self->throw_exception("Can't find source for ${moniker}")
unless $mapped && exists $sreg->{$mapped};
return $sreg->{$mapped};
}
return $self->source($moniker)->resultset;
}
-=head2 load_classes [<classes>, (<class>, <class>), {<namespace> => [<classes>]}]
+=head2 load_classes
+
+=head3 Arguments: [<classes>, (<class>, <class>), {<namespace> => [<classes>]}]
Uses L<Module::Find> to find all classes under the database class' namespace,
or uses the classes you select. Then it loads the component (using L<use>),
}
} else {
eval "require Module::Find;";
- $class->throw("No arguments to load_classes and couldn't load".
+ $class->throw_exception("No arguments to load_classes and couldn't load".
" Module::Find ($@)") if $@;
my @comp = map { substr $_, length "${class}::" } Module::Find::findallmod($class);
$comps_for{$class} = \@comp;
die $@ unless $@ =~ /Can't locate/;
}
$class->register_class($comp => $comp_class);
+ # if $class->can('result_source_instance');
}
}
}
-=head2 compose_connection <target> <@db_info>
+=head2 compose_connection
+
+=head3 Arguments: <target> <@db_info>
This is the most important method in this class. it takes a target namespace,
as well as dbh connection info, and creates a L<DBIx::Class::DB> class as
sub compose_connection {
my ($self, $target, @info) = @_;
my $base = 'DBIx::Class::ResultSetProxy';
- $base->require;
+ eval "require ${base};";
+ $self->throw_exception("No arguments to load_classes and couldn't load".
+ " ${base} ($@)") if $@;
+
+ if ($self eq $target) {
+ # Pathological case, largely caused by the docs on early C::M::DBIC::Plain
+ foreach my $moniker ($self->sources) {
+ my $source = $self->source($moniker);
+ my $class = $source->result_class;
+ $self->inject_base($class, $base);
+ $class->mk_classdata(resultset_instance => $source->resultset);
+ $class->mk_classdata(class_resolver => $self);
+ }
+ $self->connection(@info);
+ return $self;
+ }
+
my $schema = $self->compose_namespace($target, $base);
+ {
+ no strict 'refs';
+ *{"${target}::schema"} = sub { $schema };
+ }
+
$schema->connection(@info);
foreach my $moniker ($schema->sources) {
my $source = $schema->source($moniker);
}
{
no strict 'refs';
- *{"${target}::schema"} =
- sub { $schema };
foreach my $meth (qw/class source resultset/) {
*{"${target}::${meth}"} =
sub { shift->schema->$meth(@_) };
return $schema;
}
-=head2 setup_connection_class <$target> <@info>
+=head2 setup_connection_class
+
+=head3 Arguments: <$target> <@info>
Sets up a database connection class to inject between the schema
and the subclasses the schema creates.
$target->connection(@info);
}
-=head2 connection(@args)
+=head2 connection
+
+=head3 Arguments: (@args)
Instantiates a new Storage object of type storage_type and passes the
arguments to $storage->connect_info. Sets the connection in-place on
my $storage_class = $self->storage_type;
$storage_class = 'DBIx::Class::Storage'.$storage_class
if $storage_class =~ m/^::/;
- $storage_class->require;
+ eval "require ${storage_class};";
+ $self->throw_exception("No arguments to load_classes and couldn't load".
+ " ${storage_class} ($@)") if $@;
my $storage = $storage_class->new;
$storage->connect_info(\@info);
$self->storage($storage);
return $self;
}
-=head2 connect(@info)
+=head2 connect
+
+=head3 Arguments: (@info)
Conveneience method, equivalent to $schema->clone->connection(@info)
=cut
-sub connect { shift->clone->connection(@_) };
+sub connect { shift->clone->connection(@_) }
+
+=head2 txn_begin
+
+Begins a transaction (does nothing if AutoCommit is off).
+
+=cut
+
+sub txn_begin { shift->storage->txn_begin }
+
+=head2 txn_commit
+
+Commits the current transaction.
+
+=cut
+
+sub txn_commit { shift->storage->txn_commit }
+
+=head2 txn_rollback
+
+Rolls back the current transaction.
+
+=cut
+
+sub txn_rollback { shift->storage->txn_rollback }
=head2 clone
return $clone;
}
+=head2 populate
+
+=head3 Arguments: ($moniker, \@data);
+
+Populates the source registered with the given moniker with the supplied data.
+@data should be a list of listrefs, the first containing column names, the
+second matching values - i.e.
+
+$schema->populate('Foo', [
+ [ qw/foo_id foo_string/ ],
+ [ 1, 'One' ],
+ [ 2, 'Two' ],
+ ...
+]);
+
+=cut
+
+sub populate {
+ my ($self, $name, $data) = @_;
+ my $rs = $self->resultset($name);
+ my @names = @{shift(@$data)};
+ foreach my $item (@$data) {
+ my %create;
+ @create{@names} = @$item;
+ $rs->create(\%create);
+ }
+}
+
+=head2 throw_exception
+
+Defaults to using Carp::Clan to report errors from user perspective.
+
+=cut
+
+sub throw_exception {
+ my ($self) = shift;
+ croak @_;
+}
+
+=head2 deploy
+
+Attempts to deploy the schema to the current storage
+
+=cut
+
+sub deploy {
+ my ($self) = shift;
+ $self->throw_exception("Can't deploy without storage") unless $self->storage;
+ $self->storage->deploy($self);
+}
+
1;
=head1 AUTHORS
projects / dbsrgits/DBIx-Class-Historic.git / blobdiff