use strict;
use warnings;
-use base qw/DBIx::Class::Schema::Loader::Base Class::Accessor::Fast/;
+use base qw/DBIx::Class::Schema::Loader::Base/;
use Class::C3;
-use Carp::Clan qw/^DBIx::Class::Schema::Loader/;
-use UNIVERSAL::require;
+use Carp::Clan qw/^DBIx::Class/;
+
+our $VERSION = '0.07000';
=head1 NAME
sub new {
my $self = shift->next::method(@_);
- # rebless to vendor-specific class if it exists and loads
- my $dbh = $self->schema->storage->dbh;
- my $driver = $dbh->{Driver}->{Name};
- my $subclass = 'DBIx::Class::Schema::Loader::DBI::' . $driver;
- $subclass->require;
- if($@ && $@ !~ /^Can't locate /) {
- croak "Failed to require $subclass: $@";
- }
- elsif(!$@) {
- bless $self, "DBIx::Class::Schema::Loader::DBI::${driver}";
+ # rebless to vendor-specific class if it exists and loads and we're not in a
+ # custom class.
+ if (not $self->loader_class) {
+ my $dbh = $self->schema->storage->dbh;
+ my $driver = $dbh->{Driver}->{Name};
+
+ my $subclass = 'DBIx::Class::Schema::Loader::DBI::' . $driver;
+ if ($self->load_optional_class($subclass)) {
+ bless $self, $subclass unless $self->isa($subclass);
+ $self->_rebless;
+ }
}
# Set up the default quoting character and name seperators
- $self->{_quoter} = $self->schema->storage->sql_maker->quote_char
- || $dbh->get_info(29)
- || q{"};
-
- $self->{_namesep} = $self->schema->storage->sql_maker->name_sep
- || $dbh->get_info(41)
- || q{.};
+ $self->{_quoter} = $self->_build_quoter;
+ $self->{_namesep} = $self->_build_namesep;
# For our usage as regex matches, concatenating multiple quoter
# values works fine (e.g. s/\Q<>\E// if quoter was [ '<', '>' ])
$self;
}
+sub _build_quoter {
+ my $self = shift;
+ my $dbh = $self->schema->storage->dbh;
+ return $dbh->get_info(29)
+ || $self->schema->storage->sql_maker->quote_char
+ || q{"};
+}
+
+sub _build_namesep {
+ my $self = shift;
+ my $dbh = $self->schema->storage->dbh;
+ return $dbh->get_info(41)
+ || $self->schema->storage->sql_maker->name_sep
+ || q{.};
+}
+
# Override this in vendor modules to do things at the end of ->new()
sub _setup { }
+# Override this in vendor module to load a subclass if necessary
+sub _rebless { }
+
# Returns an array of table names
sub _tables_list {
- my $self = shift;
+ my ($self, $opts) = (shift, shift);
+
+ my ($table, $type) = @_ ? @_ : ('%', '%');
my $dbh = $self->schema->storage->dbh;
- my @tables = $dbh->tables(undef, $self->db_schema, '%', '%');
- s/\Q$self->{_quoter}\E//g for @tables;
- s/^.*\Q$self->{_namesep}\E// for @tables;
+ my @tables = $dbh->tables(undef, $self->db_schema, $table, $type);
- return @tables;
+ my $qt = qr/[\Q$self->{_quoter}\E"'`\[\]]/;
+
+ my $all_tables_quoted = (grep /$qt/, @tables) == @tables;
+
+ if ($self->{_quoter} && $all_tables_quoted) {
+ s/.* $qt (?= .* $qt)//xg for @tables;
+ } else {
+ s/^.*\Q$self->{_namesep}\E// for @tables;
+ }
+ s/$qt//g for @tables;
+
+ return $self->_filter_tables(\@tables, $opts);
}
-# Returns an arrayref of column names
-sub _table_columns {
- my ($self, $table) = @_;
+# apply constraint/exclude and ignore bad tables and views
+sub _filter_tables {
+ my ($self, $tables, $opts) = @_;
+
+ my @tables = @$tables;
+ my @filtered_tables;
+
+ $opts ||= {};
+ my $constraint = $opts->{constraint};
+ my $exclude = $opts->{exclude};
+
+ @tables = grep { /$constraint/ } @$tables if defined $constraint;
+ @tables = grep { ! /$exclude/ } @$tables if defined $exclude;
+
+ for my $table (@tables) {
+ eval {
+ my $sth = $self->_sth_for($table, undef, \'1 = 0');
+ $sth->execute;
+ };
+ if (not $@) {
+ push @filtered_tables, $table;
+ }
+ else {
+ warn "Bad table or view '$table', ignoring: $@\n";
+ local $@;
+ eval {
+ my $schema = $self->schema;
+ # in older DBIC it's a private method
+ my $unregister = $schema->can('unregister_source')
+ || $schema->can('_unregister_source');
+ $schema->$unregister($self->_table2moniker($table));
+ };
+ }
+ }
- my $dbh = $self->schema->storage->dbh;
+ return @filtered_tables;
+}
+
+=head2 load
+
+We override L<DBIx::Class::Schema::Loader::Base/load> here to hook in our localized settings for C<$dbh> error handling.
+
+=cut
+
+sub load {
+ my $self = shift;
+
+ local $self->schema->storage->dbh->{RaiseError} = 1;
+ local $self->schema->storage->dbh->{PrintError} = 0;
+ $self->next::method(@_);
+}
+
+sub _table_as_sql {
+ my ($self, $table) = @_;
if($self->{db_schema}) {
- $table = $self->{db_schema} . $self->{_namesep} . $table;
+ $table = $self->{db_schema} . $self->{_namesep} .
+ $self->_quote_table_name($table);
+ } else {
+ $table = $self->_quote_table_name($table);
}
- my $sth = $dbh->prepare("SELECT * FROM $table WHERE 1=0");
+ return $table;
+}
+
+sub _sth_for {
+ my ($self, $table, $fields, $where) = @_;
+
+ my $dbh = $self->schema->storage->dbh;
+
+ my $sth = $dbh->prepare($self->schema->storage->sql_maker
+ ->select(\$self->_table_as_sql($table), $fields, $where));
+
+ return $sth;
+}
+
+# Returns an arrayref of column names
+sub _table_columns {
+ my ($self, $table) = @_;
+
+ my $sth = $self->_sth_for($table, undef, \'1 = 0');
$sth->execute;
- return \@{$sth->{NAME_lc}};
+ my $retval = $self->preserve_case ? \@{$sth->{NAME}} : \@{$sth->{NAME_lc}};
+ $sth->finish;
+
+ $retval;
}
# Returns arrayref of pk col names
sub _table_pk_info {
- my ( $self, $table ) = @_;
+ my ($self, $table) = @_;
my $dbh = $self->schema->storage->dbh;
- my @primary = map { lc } $dbh->primary_key('', $self->db_schema, $table);
+ my @primary = map { $self->_lc($_) } $dbh->primary_key('', $self->db_schema, $table);
s/\Q$self->{_quoter}\E//g for @primary;
return \@primary;
}
-# Override this for uniq info
+# Override this for vendor-specific uniq info
sub _table_uniq_info {
- warn "No UNIQUE constraint information can be gathered for this vendor";
- return [];
+ my ($self, $table) = @_;
+
+ my $dbh = $self->schema->storage->dbh;
+ if(!$dbh->can('statistics_info')) {
+ warn "No UNIQUE constraint information can be gathered for this vendor";
+ return [];
+ }
+
+ my %indices;
+ my $sth = $dbh->statistics_info(undef, $self->db_schema, $table, 1, 1);
+ while(my $row = $sth->fetchrow_hashref) {
+ # skip table-level stats, conditional indexes, and any index missing
+ # critical fields
+ next if $row->{TYPE} eq 'table'
+ || defined $row->{FILTER_CONDITION}
+ || !$row->{INDEX_NAME}
+ || !defined $row->{ORDINAL_POSITION}
+ || !$row->{COLUMN_NAME};
+
+ $indices{$row->{INDEX_NAME}}->{$row->{ORDINAL_POSITION}} = $row->{COLUMN_NAME};
+ }
+ $sth->finish;
+
+ my @retval;
+ foreach my $index_name (keys %indices) {
+ my $index = $indices{$index_name};
+ push(@retval, [ $index_name => [
+ map { $index->{$_} }
+ sort keys %$index
+ ]]);
+ }
+
+ return \@retval;
}
# Find relationships
my ($self, $table) = @_;
my $dbh = $self->schema->storage->dbh;
- my $sth = $dbh->foreign_key_info( '', '', '', '',
- $self->db_schema, $table );
+ my $sth = $dbh->foreign_key_info( '', $self->db_schema, '',
+ '', $self->db_schema, $table );
return [] if !$sth;
my %rels;
$rels{$relid}->{tbl} = $uk_tbl;
$rels{$relid}->{cols}->{$uk_col} = $fk_col;
}
+ $sth->finish;
my @rels;
foreach my $relid (keys %rels) {
return \@rels;
}
+# ported in from DBIx::Class::Storage::DBI:
+sub _columns_info_for {
+ my ($self, $table) = @_;
+
+ my $dbh = $self->schema->storage->dbh;
+
+ if ($dbh->can('column_info')) {
+ my %result;
+ eval {
+ my $sth = eval { local $SIG{__WARN__} = sub {}; $dbh->column_info( undef, $self->db_schema, $table, '%' ); };
+ while ( my $info = $sth->fetchrow_hashref() ){
+ my $column_info = {};
+ $column_info->{data_type} = lc $info->{TYPE_NAME};
+
+ my $size = $info->{COLUMN_SIZE};
+
+ if (defined $size && defined $info->{DECIMAL_DIGITS}) {
+ $column_info->{size} = [$size, $info->{DECIMAL_DIGITS}];
+ }
+ elsif (defined $size) {
+ $column_info->{size} = $size;
+ }
+
+ $column_info->{is_nullable} = $info->{NULLABLE} ? 1 : 0;
+ $column_info->{default_value} = $info->{COLUMN_DEF} if defined $info->{COLUMN_DEF};
+ my $col_name = $info->{COLUMN_NAME};
+ $col_name =~ s/^\"(.*)\"$/$1/;
+
+ my $extra_info = $self->_extra_column_info(
+ $table, $col_name, $column_info, $info
+ ) || {};
+ $column_info = { %$column_info, %$extra_info };
+
+ $result{$col_name} = $column_info;
+ }
+ $sth->finish;
+ };
+ return \%result if !$@ && scalar keys %result;
+ }
+
+ my %result;
+ my $sth = $self->_sth_for($table, undef, \'1 = 0');
+ $sth->execute;
+ my @columns = @{ $self->preserve_case ? $sth->{NAME} : $sth->{NAME_lc} };
+ for my $i ( 0 .. $#columns ){
+ my $column_info = {};
+ $column_info->{data_type} = lc $sth->{TYPE}->[$i];
+
+ my $size = $sth->{PRECISION}[$i];
+
+ if (defined $size && defined $sth->{SCALE}[$i]) {
+ $column_info->{size} = [$size, $sth->{SCALE}[$i]];
+ }
+ elsif (defined $size) {
+ $column_info->{size} = $size;
+ }
+
+ $column_info->{is_nullable} = $sth->{NULLABLE}->[$i] ? 1 : 0;
+
+ if ($column_info->{data_type} =~ m/^(.*?)\((.*?)\)$/) {
+ $column_info->{data_type} = $1;
+ $column_info->{size} = $2;
+ }
+
+ my $extra_info = $self->_extra_column_info($table, $columns[$i], $column_info) || {};
+ $column_info = { %$column_info, %$extra_info };
+
+ $result{$columns[$i]} = $column_info;
+ }
+ $sth->finish;
+
+ foreach my $col (keys %result) {
+ my $colinfo = $result{$col};
+ my $type_num = $colinfo->{data_type};
+ my $type_name;
+ if(defined $type_num && $type_num =~ /^\d+\z/ && $dbh->can('type_info')) {
+ my $type_info = $dbh->type_info($type_num);
+ $type_name = $type_info->{TYPE_NAME} if $type_info;
+ $colinfo->{data_type} = lc $type_name if $type_name;
+ }
+ }
+
+ return \%result;
+}
+
+# Override this in vendor class to return any additional column
+# attributes
+sub _extra_column_info {}
+
=head1 SEE ALSO
L<DBIx::Class::Schema::Loader>
+=head1 AUTHOR
+
+See L<DBIx::Class::Schema::Loader/AUTHOR> and L<DBIx::Class::Schema::Loader/CONTRIBUTORS>.
+
+=head1 LICENSE
+
+This library is free software; you can redistribute it and/or modify it under
+the same terms as Perl itself.
+
=cut
1;
+# vim:et sts=4 sw=4 tw=0:
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