[dbsrgits/DBIx-Class-Schema-Loader.git] / lib / DBIx / Class / Schema / Loader / Generic.pm

package DBIx::Class::Schema::Loader::Generic;

use strict;
use warnings;

use base qw/DBIx::Class::Schema/;

use Carp;
use Lingua::EN::Inflect;

require DBIx::Class::Core;

__PACKAGE__->mk_classaccessor('_loader_inflect');
__PACKAGE__->mk_classaccessor('_loader_db_schema');
__PACKAGE__->mk_classaccessor('_loader_drop_db_schema');
__PACKAGE__->mk_classaccessor('_loader_classes' => {} );
__PACKAGE__->mk_classaccessor('_loader_monikers' => {} );
__PACKAGE__->mk_classaccessor('_loader_debug' => 0);

=head1 NAME

DBIx::Class::Schema::Loader::Generic - Generic DBIx::Class::Schema::Loader Implementation.

=head1 SYNOPSIS

See L<DBIx::Class::Schema::Loader>

=head1 DESCRIPTION

=head2 OPTIONS

Available constructor options are:

=head3 additional_base_classes

List of additional base classes your table classes will use.

=head3 left_base_classes

List of additional base classes, that need to be leftmost.

=head3 additional_classes

List of additional classes which your table classes will use.

=head3 constraint

Only load tables matching regex.

=head3 exclude

Exclude tables matching regex.

=head3 debug

Enable debug messages.

=head3 dsn

DBI Data Source Name.

=head3 password

Password.

=head3 relationships

Try to automatically detect/setup has_a and has_many relationships.

=head3 inflect

An hashref, which contains exceptions to Lingua::EN::Inflect::PL().
Useful for foreign language column names.

=head3 user

Username.

=head2 METHODS

=cut

=head3 new

Not intended to be called directly.  This is used internally by the
C<new()> method in L<DBIx::Class::Schema::Loader>.

=cut

sub _load_from_connection {
    my ( $class, %args ) = @_;

    $class->_loader_debug(1) if $args{debug};
    $class->_loader_inflect($args{inflect});
    $class->_loader_db_schema($args{db_schema} || '');
    $class->_loader_drop_db_schema($args{drop_db_schema});

    my $additional = $args{additional_classes} || [];
    $additional = [$additional] unless ref $additional eq 'ARRAY';

    my $additional_base = $args{additional_base_classes} || [];
    $additional_base = [$additional_base]
      unless ref $additional_base eq 'ARRAY';

    my $left_base = $args{left_base_classes} || [];
    $left_base = [$left_base] unless ref $left_base eq 'ARRAY';

    my %load_classes_args = (
        additional      => $additional,
        additional_base => $additional_base,
        left_base       => $left_base,
        constraint      => $args{constraint} || '.*',
        exclude         => $args{exclude},
    );

    $class->connection($args{dsn}, $args{user},
                       $args{password}, $args{options});

    warn qq/\### START DBIx::Class::Schema::Loader dump ###\n/
        if $class->_loader_debug;

    $class->_loader_load_classes(%load_classes_args);
    $class->_loader_relationships if $args{relationships};

    warn qq/\### END DBIx::Class::Schema::Loader dump ###\n/
        if $class->_loader_debug;
    $class->storage->dbh->disconnect; # XXX this should be ->storage->disconnect later?

    1;
}

# The original table class name during Loader,
sub _loader_find_table_class {
    my ( $class, $table ) = @_;
    return $class->_loader_classes->{$table};
}

# Returns the moniker for a given table name,
# for use in $conn->resultset($moniker)

=head3 moniker

Returns the moniker for a given literal table name.  Used
as $schema->resultset($moniker), etc.

=cut
sub moniker {
    my ( $class, $table ) = @_;
    return $class->_loader_monikers->{$table};
}

=head3 tables

Returns a sorted list of tables.

    my @tables = $loader->tables;

=cut

sub tables {
    my $class = shift;
    return sort keys %{ $class->_loader_monikers };
}

# Overload in your driver class
sub _loader_db_classes { croak "ABSTRACT METHOD" }

# not a class method.
sub _loader_stringify_hash {
    my $href = shift;

    return '{ ' .
           join(q{, }, map("$_ => $href->{$_}", keys %$href))
           . ' }';
}

# Setup has_a and has_many relationships
sub _loader_make_relations {

    my ( $class, $table, $other, $cond ) = @_;
    my $table_class = $class->_loader_find_table_class($table);
    my $other_class = $class->_loader_find_table_class($other);

    my $table_relname = lc $table;
    my $other_relname = lc $other;

    if(my $inflections = $class->_loader_inflect) {
        $table_relname = $inflections->{$table_relname}
          if exists $inflections->{$table_relname};
    }
    else {
        $table_relname = Lingua::EN::Inflect::PL($table_relname);
    }

    if(ref($cond) eq 'HASH') {
        # for single-column case, set the relname to the column name,
        # to make filter accessors work
        if(scalar keys %$cond == 1) {
            my ($col) = keys %$cond;
            $other_relname = $cond->{$col};
        }

        my $rev_cond = { reverse %$cond };

        my $cond_printable = _loader_stringify_hash($cond)
            if $class->_loader_debug;
        my $rev_cond_printable = _loader_stringify_hash($rev_cond)
            if $class->_loader_debug;

        warn qq/\# Belongs_to relationship\n/ if $class->_loader_debug;

        warn qq/$table_class->belongs_to( '$other_relname' => '$other_class',/
          .  qq/$cond_printable);\n\n/
          if $class->_loader_debug;

        $table_class->belongs_to( $other_relname => $other_class, $cond);

        warn qq/\# Has_many relationship\n/ if $class->_loader_debug;

        warn qq/$other_class->has_many( '$table_relname' => '$table_class',/
          .  qq/$rev_cond_printable);\n\n/
          .  qq/);\n\n/
          if $class->_loader_debug;

        $other_class->has_many( $table_relname => $table_class, $rev_cond);
    }
    else { # implicit stuff, just a col name
        warn qq/\# Belongs_to relationship\n/ if $class->_loader_debug;
        warn qq/$table_class->belongs_to( '$cond' => '$other_class' );\n\n/
          if $class->_loader_debug;
        $table_class->belongs_to( $cond => $other_class );

        warn qq/\# Has_many relationship\n/ if $class->_loader_debug;
        warn qq/$other_class->has_many( '$table_relname' => '$table_class',/
          .  qq/$cond);\n\n/
          if $class->_loader_debug;

        $other_class->has_many( $table_relname => $table_class, $cond);
    }
}

# Load and setup classes
sub _loader_load_classes {
    my ($class, %args)  = @_;

    my $additional      = join '',
                          map "use $_;\n", @{$args{additional}};

    my @tables          = $class->_loader_tables();
    my @db_classes      = $class->_loader_db_classes();

    foreach my $table (@tables) {
        next unless $table =~ /$args{constraint}/;
        next if defined $args{exclude} && $table =~ /$args{exclude}/;

        my ($db_schema, $tbl) = split /\./, $table;
        my $tablename = lc $table;
        if($tbl) {
            $tablename = $class->_loader_drop_db_schema ? $tbl : lc $table;
        }
	my $lc_tblname = lc $tablename;

        my $table_moniker = $class->_loader_table2moniker($db_schema, $tbl);
        my $table_class = "$class\::$table_moniker";

        # XXX all of this needs require/eval error checking
        $class->inject_base( $table_class, 'DBIx::Class::Core' );
        $_->require for @db_classes;
        $class->inject_base( $table_class, $_ ) for @db_classes;
        $class->inject_base( $table_class, $_ ) for @{$args{additional_base}};
        eval "package $table_class;$_;"         for @{$args{additional}};
        $class->inject_base( $table_class, $_ ) for @{$args{left_base}};

        warn qq/\# Initializing table "$tablename" as "$table_class"\n/ if $class->_loader_debug;
        $table_class->table($lc_tblname);

        my ( $cols, $pks ) = $class->_loader_table_info($table);
        carp("$table has no primary key") unless @$pks;
        $table_class->add_columns(@$cols);
        $table_class->set_primary_key(@$pks) if @$pks;

        warn qq/$table_class->table('$tablename');\n/ if $class->_loader_debug;
        my $columns = join "', '", @$cols;
        warn qq/$table_class->add_columns('$columns')\n/ if $class->_loader_debug;
        my $primaries = join "', '", @$pks;
        warn qq/$table_class->set_primary_key('$primaries')\n/ if $class->_loader_debug && @$pks;

        $class->register_class($table_moniker, $table_class);
        $class->_loader_classes->{$lc_tblname} = $table_class;
        $class->_loader_monikers->{$lc_tblname} = $table_moniker;
    }
}

# Find and setup relationships
sub _loader_relationships {
    my $class = shift;
    my $dbh = $class->storage->dbh;
    my $quoter = $dbh->get_info(29) || q{"};
    foreach my $table ( $class->tables ) {
        my $rels = {};
        my $sth = $dbh->foreign_key_info( '',
            $class->_loader_db_schema, '', '', '', $table );
        next if !$sth;
        while(my $raw_rel = $sth->fetchrow_hashref) {
            my $uk_tbl  = lc $raw_rel->{UK_TABLE_NAME};
            my $uk_col  = lc $raw_rel->{UK_COLUMN_NAME};
            my $fk_col  = lc $raw_rel->{FK_COLUMN_NAME};
            my $relid   = lc $raw_rel->{UK_NAME};
            $uk_tbl =~ s/$quoter//g;
            $uk_col =~ s/$quoter//g;
            $fk_col =~ s/$quoter//g;
            $relid  =~ s/$quoter//g;
            $rels->{$relid}->{tbl} = $uk_tbl;
            $rels->{$relid}->{cols}->{$uk_col} = $fk_col;
        }

        foreach my $relid (keys %$rels) {
            my $reltbl = $rels->{$relid}->{tbl};
            my $cond   = $rels->{$relid}->{cols};
            eval { $class->_loader_make_relations( $table, $reltbl, $cond ) };
              warn qq/\# belongs_to_many failed "$@"\n\n/
                if $@ && $class->_loader_debug;
        }
    }
}

# Make a moniker from a table
sub _loader_table2moniker {
    my ( $class, $db_schema, $table ) = @_;

    my $db_schema_ns;

    if($table) {
        $db_schema = ucfirst lc $db_schema;
        $db_schema_ns = $db_schema if(!$class->_loader_drop_db_schema);
    } else {
        $table = $db_schema;
    }

    my $moniker = join '', map ucfirst, split /[\W_]+/, lc $table;
    $moniker = $db_schema_ns ? $db_schema_ns . $moniker : $moniker;

    return $moniker;
}

# Overload in driver class
sub _loader_tables { croak "ABSTRACT METHOD" }

sub _loader_table_info { croak "ABSTRACT METHOD" }

=head1 SEE ALSO

L<DBIx::Class::Schema::Loader>

=cut

1;
Commit	Line	Data
18fca96a	1	package DBIx::Class::Schema::Loader::Generic;
a78e3fed	2
a78e3fed	3	use strict;
a4a19f3c	4	use warnings;
	5
	6	use base qw/DBIx::Class::Schema/;
	7
a78e3fed	8	use Carp;
a78e3fed	9	use Lingua::EN::Inflect;
a4a19f3c	10
a78e3fed	11	require DBIx::Class::Core;
a4a19f3c	12
e26a4023	13	__PACKAGE__->mk_classaccessor('_loader_inflect');
	14	__PACKAGE__->mk_classaccessor('_loader_db_schema');
	15	__PACKAGE__->mk_classaccessor('_loader_drop_db_schema');
	16	__PACKAGE__->mk_classaccessor('_loader_classes' => {} );
	17	__PACKAGE__->mk_classaccessor('_loader_monikers' => {} );
66742793	18	__PACKAGE__->mk_classaccessor('_loader_debug' => 0);
a4a19f3c	19
a78e3fed	20	=head1 NAME
a78e3fed	21
18fca96a	22	DBIx::Class::Schema::Loader::Generic - Generic DBIx::Class::Schema::Loader Implementation.
a78e3fed	23
	24	=head1 SYNOPSIS
	25
18fca96a	26	See L<DBIx::Class::Schema::Loader>
a78e3fed	27
	28	=head1 DESCRIPTION
	29
	30	=head2 OPTIONS
	31
	32	Available constructor options are:
	33
	34	=head3 additional_base_classes
	35
	36	List of additional base classes your table classes will use.
	37
	38	=head3 left_base_classes
	39
	40	List of additional base classes, that need to be leftmost.
	41
	42	=head3 additional_classes
	43
	44	List of additional classes which your table classes will use.
	45
	46	=head3 constraint
	47
	48	Only load tables matching regex.
	49
	50	=head3 exclude
	51
	52	Exclude tables matching regex.
	53
	54	=head3 debug
	55
	56	Enable debug messages.
	57
	58	=head3 dsn
	59
	60	DBI Data Source Name.
	61
a78e3fed	62	=head3 password
	63
	64	Password.
	65
	66	=head3 relationships
	67
	68	Try to automatically detect/setup has_a and has_many relationships.
	69
	70	=head3 inflect
	71
	72	An hashref, which contains exceptions to Lingua::EN::Inflect::PL().
	73	Useful for foreign language column names.
	74
	75	=head3 user
	76
	77	Username.
	78
	79	=head2 METHODS
	80
	81	=cut
	82
	83	=head3 new
	84
	85	Not intended to be called directly. This is used internally by the
18fca96a	86	C<new()> method in L<DBIx::Class::Schema::Loader>.
a78e3fed	87
	88	=cut
	89
a4a19f3c	90	sub _load_from_connection {
a78e3fed	91	my ( $class, %args ) = @_;
3385ac62	92
e26a4023	93	$class->_loader_debug(1) if $args{debug};
	94	$class->_loader_inflect($args{inflect});
	95	$class->_loader_db_schema($args{db_schema} \|\| '');
	96	$class->_loader_drop_db_schema($args{drop_db_schema});
3385ac62	97
a78e3fed	98	my $additional = $args{additional_classes} \|\| [];
a78e3fed	99	$additional = [$additional] unless ref $additional eq 'ARRAY';
3385ac62	100
a78e3fed	101	my $additional_base = $args{additional_base_classes} \|\| [];
	102	$additional_base = [$additional_base]
	103	unless ref $additional_base eq 'ARRAY';
3385ac62	104
a78e3fed	105	my $left_base = $args{left_base_classes} \|\| [];
a78e3fed	106	$left_base = [$left_base] unless ref $left_base eq 'ARRAY';
3385ac62	107
e26a4023	108	my %load_classes_args = (
3385ac62	109	additional => $additional,
	110	additional_base => $additional_base,
	111	left_base => $left_base,
	112	constraint => $args{constraint} \|\| '.*',
	113	exclude => $args{exclude},
e26a4023	114	);
	115
	116	$class->connection($args{dsn}, $args{user},
	117	$args{password}, $args{options});
	118
3385ac62	119	warn qq/\### START DBIx::Class::Schema::Loader dump ###\n/
3385ac62	120	if $class->_loader_debug;
e26a4023	121
e26a4023	122	$class->_loader_load_classes(%load_classes_args);
66742793	123	$class->_loader_relationships if $args{relationships};
e26a4023	124
3385ac62	125	warn qq/\### END DBIx::Class::Schema::Loader dump ###\n/
3385ac62	126	if $class->_loader_debug;
a4a19f3c	127	$class->storage->dbh->disconnect; # XXX this should be ->storage->disconnect later?
	128
	129	1;
a78e3fed	130	}
a78e3fed	131
af6c2665	132	# The original table class name during Loader,
3385ac62	133	sub _loader_find_table_class {
a4a19f3c	134	my ( $class, $table ) = @_;
e26a4023	135	return $class->_loader_classes->{$table};
a78e3fed	136	}
a78e3fed	137
af6c2665	138	# Returns the moniker for a given table name,
af6c2665	139	# for use in $conn->resultset($moniker)
fbd83464	140
	141	=head3 moniker
	142
	143	Returns the moniker for a given literal table name. Used
	144	as $schema->resultset($moniker), etc.
	145
	146	=cut
af6c2665	147	sub moniker {
a4a19f3c	148	my ( $class, $table ) = @_;
e26a4023	149	return $class->_loader_monikers->{$table};
a78e3fed	150	}
a78e3fed	151
a78e3fed	152	=head3 tables
	153
	154	Returns a sorted list of tables.
	155
	156	my @tables = $loader->tables;
	157
	158	=cut
	159
	160	sub tables {
a4a19f3c	161	my $class = shift;
e26a4023	162	return sort keys %{ $class->_loader_monikers };
a78e3fed	163	}
	164
	165	# Overload in your driver class
3385ac62	166	sub _loader_db_classes { croak "ABSTRACT METHOD" }
a78e3fed	167
66742793	168	# not a class method.
	169	sub _loader_stringify_hash {
	170	my $href = shift;
	171
	172	return '{ ' .
	173	join(q{, }, map("$_ => $href->{$_}", keys %$href))
	174	. ' }';
	175	}
	176
a78e3fed	177	# Setup has_a and has_many relationships
3385ac62	178	sub _loader_make_relations {
708c0939	179
708c0939	180	my ( $class, $table, $other, $cond ) = @_;
3385ac62	181	my $table_class = $class->_loader_find_table_class($table);
3385ac62	182	my $other_class = $class->_loader_find_table_class($other);
a78e3fed	183
708c0939	184	my $table_relname = lc $table;
708c0939	185	my $other_relname = lc $other;
a78e3fed	186
e26a4023	187	if(my $inflections = $class->_loader_inflect) {
708c0939	188	$table_relname = $inflections->{$table_relname}
708c0939	189	if exists $inflections->{$table_relname};
a78e3fed	190	}
a78e3fed	191	else {
708c0939	192	$table_relname = Lingua::EN::Inflect::PL($table_relname);
	193	}
	194
4ce22656	195	if(ref($cond) eq 'HASH') {
	196	# for single-column case, set the relname to the column name,
	197	# to make filter accessors work
	198	if(scalar keys %$cond == 1) {
	199	my ($col) = keys %$cond;
	200	$other_relname = $cond->{$col};
	201	}
a78e3fed	202
4ce22656	203	my $rev_cond = { reverse %$cond };
708c0939	204
4ce22656	205	my $cond_printable = _loader_stringify_hash($cond)
	206	if $class->_loader_debug;
	207	my $rev_cond_printable = _loader_stringify_hash($rev_cond)
	208	if $class->_loader_debug;
66742793	209
4ce22656	210	warn qq/\# Belongs_to relationship\n/ if $class->_loader_debug;
708c0939	211
4ce22656	212	warn qq/$table_class->belongs_to( '$other_relname' => '$other_class',/
	213	. qq/$cond_printable);\n\n/
	214	if $class->_loader_debug;
708c0939	215
4ce22656	216	$table_class->belongs_to( $other_relname => $other_class, $cond);
a78e3fed	217
4ce22656	218	warn qq/\# Has_many relationship\n/ if $class->_loader_debug;
a78e3fed	219
4ce22656	220	warn qq/$other_class->has_many( '$table_relname' => '$table_class',/
	221	. qq/$rev_cond_printable);\n\n/
	222	. qq/);\n\n/
	223	if $class->_loader_debug;
708c0939	224
4ce22656	225	$other_class->has_many( $table_relname => $table_class, $rev_cond);
	226	}
	227	else { # implicit stuff, just a col name
	228	warn qq/\# Belongs_to relationship\n/ if $class->_loader_debug;
	229	warn qq/$table_class->belongs_to( '$cond' => '$other_class' );\n\n/
	230	if $class->_loader_debug;
	231	$table_class->belongs_to( $cond => $other_class );
	232
	233	warn qq/\# Has_many relationship\n/ if $class->_loader_debug;
	234	warn qq/$other_class->has_many( '$table_relname' => '$table_class',/
	235	. qq/$cond);\n\n/
	236	if $class->_loader_debug;
	237
	238	$other_class->has_many( $table_relname => $table_class, $cond);
	239	}
a78e3fed	240	}
	241
	242	# Load and setup classes
3385ac62	243	sub _loader_load_classes {
e26a4023	244	my ($class, %args) = @_;
	245
	246	my $additional = join '',
	247	map "use $_;\n", @{$args{additional}};
af6c2665	248
3385ac62	249	my @tables = $class->_loader_tables();
3385ac62	250	my @db_classes = $class->_loader_db_classes();
a78e3fed	251
a78e3fed	252	foreach my $table (@tables) {
e26a4023	253	next unless $table =~ /$args{constraint}/;
e26a4023	254	next if defined $args{exclude} && $table =~ /$args{exclude}/;
af6c2665	255
af6c2665	256	my ($db_schema, $tbl) = split /\./, $table;
af96f52e	257	my $tablename = lc $table;
a78e3fed	258	if($tbl) {
e26a4023	259	$tablename = $class->_loader_drop_db_schema ? $tbl : lc $table;
af6c2665	260	}
e26a4023	261	my $lc_tblname = lc $tablename;
af6c2665	262
3385ac62	263	my $table_moniker = $class->_loader_table2moniker($db_schema, $tbl);
65644119	264	my $table_class = "$class\::$table_moniker";
af6c2665	265
e26a4023	266	# XXX all of this needs require/eval error checking
a4a19f3c	267	$class->inject_base( $table_class, 'DBIx::Class::Core' );
a78e3fed	268	$_->require for @db_classes;
a4a19f3c	269	$class->inject_base( $table_class, $_ ) for @db_classes;
e26a4023	270	$class->inject_base( $table_class, $_ ) for @{$args{additional_base}};
	271	eval "package $table_class;$_;" for @{$args{additional}};
	272	$class->inject_base( $table_class, $_ ) for @{$args{left_base}};
	273
3385ac62	274	warn qq/\# Initializing table "$tablename" as "$table_class"\n/ if $class->_loader_debug;
e26a4023	275	$table_class->table($lc_tblname);
af6c2665	276
3385ac62	277	my ( $cols, $pks ) = $class->_loader_table_info($table);
a78e3fed	278	carp("$table has no primary key") unless @$pks;
a4a19f3c	279	$table_class->add_columns(@$cols);
a4a19f3c	280	$table_class->set_primary_key(@$pks) if @$pks;
af6c2665	281
3385ac62	282	warn qq/$table_class->table('$tablename');\n/ if $class->_loader_debug;
a78e3fed	283	my $columns = join "', '", @$cols;
3385ac62	284	warn qq/$table_class->add_columns('$columns')\n/ if $class->_loader_debug;
a78e3fed	285	my $primaries = join "', '", @$pks;
3385ac62	286	warn qq/$table_class->set_primary_key('$primaries')\n/ if $class->_loader_debug && @$pks;
af6c2665	287
65644119	288	$class->register_class($table_moniker, $table_class);
e26a4023	289	$class->_loader_classes->{$lc_tblname} = $table_class;
e26a4023	290	$class->_loader_monikers->{$lc_tblname} = $table_moniker;
a78e3fed	291	}
	292	}
	293
	294	# Find and setup relationships
3385ac62	295	sub _loader_relationships {
a4a19f3c	296	my $class = shift;
a4a19f3c	297	my $dbh = $class->storage->dbh;
708c0939	298	my $quoter = $dbh->get_info(29) \|\| q{"};
a4a19f3c	299	foreach my $table ( $class->tables ) {
708c0939	300	my $rels = {};
708c0939	301	my $sth = $dbh->foreign_key_info( '',
e26a4023	302	$class->_loader_db_schema, '', '', '', $table );
708c0939	303	next if !$sth;
	304	while(my $raw_rel = $sth->fetchrow_hashref) {
	305	my $uk_tbl = lc $raw_rel->{UK_TABLE_NAME};
	306	my $uk_col = lc $raw_rel->{UK_COLUMN_NAME};
	307	my $fk_col = lc $raw_rel->{FK_COLUMN_NAME};
4ce22656	308	my $relid = lc $raw_rel->{UK_NAME};
708c0939	309	$uk_tbl =~ s/$quoter//g;
	310	$uk_col =~ s/$quoter//g;
	311	$fk_col =~ s/$quoter//g;
4ce22656	312	$relid =~ s/$quoter//g;
	313	$rels->{$relid}->{tbl} = $uk_tbl;
	314	$rels->{$relid}->{cols}->{$uk_col} = $fk_col;
708c0939	315	}
708c0939	316
4ce22656	317	foreach my $relid (keys %$rels) {
	318	my $reltbl = $rels->{$relid}->{tbl};
	319	my $cond = $rels->{$relid}->{cols};
3385ac62	320	eval { $class->_loader_make_relations( $table, $reltbl, $cond ) };
708c0939	321	warn qq/\# belongs_to_many failed "$@"\n\n/
3385ac62	322	if $@ && $class->_loader_debug;
a78e3fed	323	}
	324	}
	325	}
	326
65644119	327	# Make a moniker from a table
3385ac62	328	sub _loader_table2moniker {
a4a19f3c	329	my ( $class, $db_schema, $table ) = @_;
af6c2665	330
af96f52e	331	my $db_schema_ns;
af6c2665	332
af96f52e	333	if($table) {
af96f52e	334	$db_schema = ucfirst lc $db_schema;
e26a4023	335	$db_schema_ns = $db_schema if(!$class->_loader_drop_db_schema);
af96f52e	336	} else {
af96f52e	337	$table = $db_schema;
a78e3fed	338	}
af6c2665	339
65644119	340	my $moniker = join '', map ucfirst, split /[\W_]+/, lc $table;
65644119	341	$moniker = $db_schema_ns ? $db_schema_ns . $moniker : $moniker;
af96f52e	342
65644119	343	return $moniker;
a78e3fed	344	}
	345
	346	# Overload in driver class
3385ac62	347	sub _loader_tables { croak "ABSTRACT METHOD" }
a78e3fed	348
3385ac62	349	sub _loader_table_info { croak "ABSTRACT METHOD" }
a78e3fed	350
	351	=head1 SEE ALSO
	352
18fca96a	353	L<DBIx::Class::Schema::Loader>
a78e3fed	354
	355	=cut
	356
	357	1;