use Scalar::Util qw/weaken/;
use File::Spec;
use Sub::Name ();
-require Module::Find;
+use Module::Find();
use base qw/DBIx::Class/;
}
# returns a hash of $shortname => $fullname for every package
-# found in the given namespaces ($shortname is with the $fullname's
-# namespace stripped off)
+# found in the given namespaces ($shortname is with the $fullname's
+# namespace stripped off)
sub _map_namespaces {
my ($class, @namespaces) = @_;
@results_hash;
}
+# returns the result_source_instance for the passed class/object,
+# or dies with an informative message (used by load_namespaces)
+sub _ns_get_rsrc_instance {
+ my $class = shift;
+ my $rs = ref ($_[0]) || $_[0];
+
+ if ($rs->can ('result_source_instance') ) {
+ return $rs->result_source_instance;
+ }
+ else {
+ $class->throw_exception (
+ "Attempt to load_namespaces() class $rs failed - are you sure this is a real Result Class?"
+ );
+ }
+}
+
sub load_namespaces {
my ($class, %args) = @_;
local *Class::C3::reinitialize = sub { };
use warnings 'redefine';
- # ensure classes are loaded and fetch properly sorted classes
+ # ensure classes are loaded and attached in inheritance order
$class->ensure_class_loaded($_) foreach(values %results);
- my @subclass_last = sort { $results{$a}->isa($results{$b}) } keys(%results);
-
+ my %inh_idx;
+ my @subclass_last = sort {
+
+ ($inh_idx{$a} ||=
+ scalar @{mro::get_linear_isa( $results{$a} )}
+ )
+
+ <=>
+
+ ($inh_idx{$b} ||=
+ scalar @{mro::get_linear_isa( $results{$b} )}
+ )
+
+ } keys(%results);
+
foreach my $result (@subclass_last) {
my $result_class = $results{$result};
my $rs_class = delete $resultsets{$result};
- my $rs_set = $result_class->resultset_class;
-
+ my $rs_set = $class->_ns_get_rsrc_instance ($result_class)->resultset_class;
+
if($rs_set && $rs_set ne 'DBIx::Class::ResultSet') {
if($rs_class && $rs_class ne $rs_set) {
- warn "We found ResultSet class '$rs_class' for '$result', but it seems "
+ carp "We found ResultSet class '$rs_class' for '$result', but it seems "
. "that you had already set '$result' to use '$rs_set' instead";
}
}
elsif($rs_class ||= $default_resultset_class) {
$class->ensure_class_loaded($rs_class);
- $result_class->resultset_class($rs_class);
+ $class->_ns_get_rsrc_instance ($result_class)->resultset_class($rs_class);
}
- my $source_name = $result_class->source_name || $result;
+ my $source_name = $class->_ns_get_rsrc_instance ($result_class)->source_name || $result;
push(@to_register, [ $source_name, $result_class ]);
}
}
foreach (sort keys %resultsets) {
- warn "load_namespaces found ResultSet class $_ with no "
+ carp "load_namespaces found ResultSet class $_ with no "
. 'corresponding Result class';
}
=back
-Alternative method to L</load_namespaces> which you should look at
-using if you can.
+L</load_classes> is an alternative method to L</load_namespaces>, both of
+which serve similar purposes, each with different advantages and disadvantages.
+In the general case you should use L</load_namespaces>, unless you need to
+be able to specify that only specific classes are loaded at runtime.
With no arguments, this method uses L<Module::Find> to find all classes under
the schema's namespace. Otherwise, this method loads the classes you specify
my $snsub = $comp_class->can('source_name');
if(! $snsub ) {
- warn "Failed to load $comp_class. Can't find source_name method. Is $comp_class really a full DBIC result class? Fix it, move it elsewhere, or make your load_classes call more specific.";
+ carp "Failed to load $comp_class. Can't find source_name method. Is $comp_class really a full DBIC result class? Fix it, move it elsewhere, or make your load_classes call more specific.";
next;
}
$comp = $snsub->($comp_class) || $comp;
[ 2, 'Indie Band' ],
...
]);
-
+
Since wantarray context is basically the same as looping over $rs->create(...)
you won't see any performance benefits and in this case the method is more for
convenience. Void context sends the column information directly to storage
sub connection {
my ($self, @info) = @_;
return $self if !@info && $self->storage;
-
+
my ($storage_class, $args) = ref $self->storage_type ?
($self->_normalize_storage_type($self->storage_type),{}) : ($self->storage_type, {});
-
+
$storage_class = 'DBIx::Class::Storage'.$storage_class
if $storage_class =~ m/^::/;
eval "require ${storage_class};";
=over 4
-=item Arguments: $sqlt_args, $dir
+=item Arguments: \%sqlt_args, $dir
=back
Attempts to deploy the schema to the current storage using L<SQL::Translator>.
-See L<SQL::Translator/METHODS> for a list of values for C<$sqlt_args>. The most
-common value for this would be C<< { add_drop_table => 1, } >> to have the SQL
-produced include a DROP TABLE statement for each table created. For quoting
-purposes use C<producer_options> value with C<quote_table_names> and
+See L<SQL::Translator/METHODS> for a list of values for C<\%sqlt_args>.
+The most common value for this would be C<< { add_drop_table => 1 } >>
+to have the SQL produced include a C<DROP TABLE> statement for each table
+created. For quoting purposes supply C<quote_table_names> and
C<quote_field_names>.
Additionally, the DBIx::Class parser accepts a C<sources> parameter as a hash
=over 4
-=item Arguments: $rdbms_type, $sqlt_args, $dir
+=item Arguments: See L<DBIx::Class::Storage::DBI/deployment_statements>
=item Return value: $listofstatements
=back
-A convenient shortcut to storage->deployment_statements(). Returns the
-SQL statements used by L</deploy> and
-L<DBIx::Class::Schema::Storage/deploy>. C<$rdbms_type> provides the
-(optional) SQLT (not DBI) database driver name for which the SQL
-statements are produced. If not supplied, the type is determined by
-interrogating the current connection. The other two arguments are
-identical to those of L</deploy>.
+A convenient shortcut to
+C<< $self->storage->deployment_statements($self, @args) >>.
+Returns the SQL statements used by L</deploy> and
+L<DBIx::Class::Schema::Storage/deploy>.
=cut
=over 4
-=item Arguments: \@databases, $version, $directory, $preversion, $sqlt_args
-
-=back
-
-Creates an SQL file based on the Schema, for each of the specified
-database types, in the given directory. Given a previous version number,
-this will also create a file containing the ALTER TABLE statements to
-transform the previous schema into the current one. Note that these
-statements may contain DROP TABLE or DROP COLUMN statements that can
-potentially destroy data.
-
-The file names are created using the C<ddl_filename> method below, please
-override this method in your schema if you would like a different file
-name format. For the ALTER file, the same format is used, replacing
-$version in the name with "$preversion-$version".
-
-See L<DBIx::Class::Schema/deploy> for details of $sqlt_args.
-
-If no arguments are passed, then the following default values are used:
-
-=over 4
-
-=item databases - ['MySQL', 'SQLite', 'PostgreSQL']
-
-=item version - $schema->schema_version
-
-=item directory - './'
-
-=item preversion - <none>
+=item Arguments: See L<DBIx::Class::Storage::DBI/create_ddl_dir>
=back
-Note that this feature is currently EXPERIMENTAL and may not work correctly
-across all databases, or fully handle complex relationships.
+A convenient shortcut to
+C<< $self->storage->create_ddl_dir($self, @args) >>.
-WARNING: Please check all SQL files created, before applying them.
+Creates an SQL file based on the Schema, for each of the specified
+database types, in the given directory.
=cut
You may override this method in your schema if you wish to use a different
format.
+ WARNING
+
+ Prior to DBIx::Class version 0.08100 this method had a different signature:
+
+ my $filename = $table->ddl_filename($type, $dir, $version, $preversion)
+
+ In recent versions variables $dir and $version were reversed in order to
+ bring the signature in line with other Schema/Storage methods. If you
+ really need to maintain backward compatibility, you can do the following
+ in any overriding methods:
+
+ ($dir, $version) = ($version, $dir) if ($DBIx::Class::VERSION < 0.08100);
+
=cut
sub ddl_filename {
$filename =~ s/::/-/g;
$filename = File::Spec->catfile($dir, "$filename-$version-$type.sql");
$filename =~ s/$version/$preversion-$version/ if($preversion);
-
+
return $filename;
}
sub compose_connection {
my ($self, $target, @info) = @_;
- warn "compose_connection deprecated as of 0.08000"
+ carp "compose_connection deprecated as of 0.08000"
unless ($INC{"DBIx/Class/CDBICompat.pm"} || $warn++);
my $base = 'DBIx::Class::ResultSetProxy';
$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) {
$self->connection(@info);
return $self;
}
-
+
my $schema = $self->compose_namespace($target, $base);
{
no strict 'refs';
my $name = join '::', $target, 'schema';
*$name = Sub::Name::subname $name, sub { $schema };
}
-
+
$schema->connection(@info);
foreach my $moniker ($schema->sources) {
my $source = $schema->source($moniker);
projects / dbsrgits/DBIx-Class.git / blobdiff