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

package DBIx::Class::Schema::Loader::DBI::Oracle;

use strict;
use warnings;
use base qw/
    DBIx::Class::Schema::Loader::DBI::Component::QuotedDefault
    DBIx::Class::Schema::Loader::DBI
/;
use Carp::Clan qw/^DBIx::Class/;
use mro 'c3';

our $VERSION = '0.07006';

=head1 NAME

DBIx::Class::Schema::Loader::DBI::Oracle - DBIx::Class::Schema::Loader::DBI 
Oracle Implementation.

=head1 DESCRIPTION

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

=cut

sub _setup {
    my $self = shift;

    $self->next::method(@_);

    my $dbh = $self->schema->storage->dbh;

    my ($current_schema) = $dbh->selectrow_array('SELECT USER FROM DUAL', {});

    $self->{db_schema} ||= $current_schema;

    if (lc($self->db_schema) ne lc($current_schema)) {
        $dbh->do('ALTER SESSION SET current_schema=' . $self->db_schema);
    }

    if (not defined $self->preserve_case) {
        $self->preserve_case(0);
    }
    elsif ($self->preserve_case) {
        $self->schema->storage->sql_maker->quote_char('"');
        $self->schema->storage->sql_maker->name_sep('.');
    }
}

sub _table_as_sql {
    my ($self, $table) = @_;

    return $self->_quote_table_name($table);
}

sub _tables_list { 
    my ($self, $opts) = @_;

    my $dbh = $self->schema->storage->dbh;

    my @tables;
    for my $table ( $dbh->tables(undef, $self->db_schema, '%', 'TABLE,VIEW') ) { #catalog, schema, table, type
        my $quoter = $dbh->get_info(29);
        $table =~ s/$quoter//g;

        # remove "user." (schema) prefixes
        $table =~ s/\w+\.//;

        next if $table eq 'PLAN_TABLE';
        $table = $self->_lc($table);
        push @tables, $1
          if $table =~ /\A(\w+)\z/;
    }

    {
        # silence a warning from older DBD::Oracles in tests
        my $warn_handler = $SIG{__WARN__} || sub { warn @_ };
        local $SIG{__WARN__} = sub {
            $warn_handler->(@_)
            unless $_[0] =~ /^Field \d+ has an Oracle type \(\d+\) which is not explicitly supported/;
        };

        return $self->_filter_tables(\@tables, $opts);
    }
}

sub _table_columns {
    my ($self, $table) = @_;

    my $dbh = $self->schema->storage->dbh;

    my $sth = $dbh->column_info(undef, $self->db_schema, $self->_uc($table), '%');

    return [ map $self->_lc($_->{COLUMN_NAME}), @{ $sth->fetchall_arrayref({ COLUMN_NAME => 1 }) || [] } ];
}

sub _table_uniq_info {
    my ($self, $table) = @_;

    my $dbh = $self->schema->storage->dbh;

    my $sth = $dbh->prepare_cached(
        q{
            SELECT constraint_name, acc.column_name
            FROM all_constraints JOIN all_cons_columns acc USING (constraint_name)
            WHERE acc.table_name=? and acc.owner = ? AND constraint_type='U'
            ORDER BY acc.position
        },
        {}, 1);

    $sth->execute($self->_uc($table),$self->{db_schema} );
    my %constr_names;
    while(my $constr = $sth->fetchrow_arrayref) {
        my $constr_name = $self->_lc($constr->[0]);
        my $constr_col  = $self->_lc($constr->[1]);
        $constr_name =~ s/\Q$self->{_quoter}\E//;
        $constr_col  =~ s/\Q$self->{_quoter}\E//;
        push @{$constr_names{$constr_name}}, $constr_col;
    }
    
    my @uniqs = map { [ $_ => $constr_names{$_} ] } keys %constr_names;
    return \@uniqs;
}

sub _table_comment {
    my ( $self, $table ) = @_;
     my ($table_comment) = $self->schema->storage->dbh->selectrow_array(
        q{
            SELECT comments FROM all_tab_comments
            WHERE owner = ? 
              AND table_name = ?
              AND table_type = 'TABLE'
        }, undef, $self->db_schema, $self->_uc($table)
    );

    return $table_comment
}

sub _column_comment {
    my ( $self, $table, $column_number, $column_name ) = @_;
    my ($column_comment) = $self->schema->storage->dbh->selectrow_array(
        q{
            SELECT comments FROM all_col_comments
            WHERE owner = ? 
              AND table_name = ?
              AND column_name = ?
        }, undef, $self->db_schema, $self->_uc( $table ), $self->_uc( $column_name )
    );
    return $column_comment
}

sub _table_pk_info {
    my ($self, $table) = (shift, shift);

    return $self->next::method($self->_uc($table), @_);
}

sub _table_fk_info {
    my ($self, $table) = (shift, shift);

    my $rels = $self->next::method($self->_uc($table), @_);

    foreach my $rel (@$rels) {
        $rel->{remote_table} = $self->_lc($rel->{remote_table});
    }

    return $rels;
}

sub _columns_info_for {
    my ($self, $table) = (shift, shift);

    my $result = $self->next::method($self->_uc($table), @_);

    my $dbh = $self->schema->storage->dbh;

    local $dbh->{LongReadLen} = 100000;
    local $dbh->{LongTruncOk} = 1;

    my $sth = $dbh->prepare_cached(q{
SELECT atc.column_name, ut.trigger_body
FROM all_triggers ut
JOIN all_trigger_cols atc USING (trigger_name)
WHERE atc.table_name = ?
AND lower(column_usage) LIKE '%new%' AND lower(column_usage) LIKE '%out%'
AND upper(trigger_type) LIKE '%BEFORE EACH ROW%' AND lower(triggering_event) LIKE '%insert%'
    }, {}, 1);

    $sth->execute($self->_uc($table));

    while (my ($col_name, $trigger_body) = $sth->fetchrow_array) {
        $col_name = $self->_lc($col_name);

        $result->{$col_name}{is_auto_increment} = 1;

        if (my ($seq_schema, $seq_name) = $trigger_body =~ /(?:\."?(\w+)"?)?"?(\w+)"?\.nextval/i) {
            $seq_schema = $self->_lc($seq_schema || $self->db_schema);
            $seq_name   = $self->_lc($seq_name);

            $result->{$col_name}{sequence} = ($self->qualify_objects ? ($seq_schema . '.') : '') . $seq_name;
        }
    }

    while (my ($col, $info) = each %$result) {
        no warnings 'uninitialized';

        if ($info->{data_type} =~ /^(?:n?[cb]lob|long(?: raw)?|bfile|date|binary_(?:float|double)|rowid)\z/i) {
            delete $info->{size};
        }

        if ($info->{data_type} =~ /^n(?:var)?char2?\z/i) {
            $info->{size} = $info->{size} / 2;
        }
        elsif (lc($info->{data_type}) eq 'number') {
            $info->{original}{data_type} = 'number';
            $info->{data_type}           = 'numeric';

            if (eval { $info->{size}[0] == 38 && $info->{size}[1] == 0 }) {
                $info->{original}{size} = $info->{size};

                $info->{data_type} = 'integer';
                delete $info->{size};
            }
        }
        elsif (my ($precision) = $info->{data_type} =~ /^timestamp\((\d+)\)(?: with (?:local )?time zone)?\z/i) {
            $info->{data_type} = join ' ', $info->{data_type} =~ /[a-z]+/ig;

            if ($precision == 6) {
                delete $info->{size};
            }
            else {
                $info->{size} = $precision;
            }
        }
        elsif (($precision) = $info->{data_type} =~ /^interval year\((\d+)\) to month\z/i) {
            $info->{data_type} = join ' ', $info->{data_type} =~ /[a-z]+/ig;

            if ($precision == 2) {
                delete $info->{size};
            }
            else {
                $info->{size} = $precision;
            }
        }
        elsif (my ($day_precision, $second_precision) = $info->{data_type} =~ /^interval day\((\d+)\) to second\((\d+)\)\z/i) {
            $info->{data_type} = join ' ', $info->{data_type} =~ /[a-z]+/ig;

            if ($day_precision == 2 && $second_precision == 6) {
                delete $info->{size};
            }
            else {
                $info->{size} = [ $day_precision, $second_precision ];
            }
        }
        elsif (lc($info->{data_type}) eq 'float') {
            $info->{original}{data_type} = 'float';
            $info->{original}{size}      = $info->{size};

            if ($info->{size} <= 63) {
                $info->{data_type} = 'real';
            }
            else {
                $info->{data_type} = 'double precision';
            }
            delete $info->{size};
        }
        elsif (lc($info->{data_type}) eq 'urowid' && $info->{size} == 4000) {
            delete $info->{size};
        }
        elsif (lc($info->{data_type}) eq 'date') {
            $info->{data_type}           = 'datetime';
            $info->{original}{data_type} = 'date';
        }
        elsif (lc($info->{data_type}) eq 'binary_float') {
            $info->{data_type}           = 'real';
            $info->{original}{data_type} = 'binary_float';
        } 
        elsif (lc($info->{data_type}) eq 'binary_double') {
            $info->{data_type}           = 'double precision';
            $info->{original}{data_type} = 'binary_double';
        } 

        if ((eval { lc(${ $info->{default_value} }) }||'') eq 'sysdate') {
            my $current_timestamp  = 'current_timestamp';
            $info->{default_value} = \$current_timestamp;

            my $sysdate = 'sysdate';
            $info->{original}{default_value} = \$sysdate;
        }
    }

    return $result;
}

=head1 SEE ALSO

L<DBIx::Class::Schema::Loader>, L<DBIx::Class::Schema::Loader::Base>,
L<DBIx::Class::Schema::Loader::DBI>

=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:
Commit	Line	Data
d87d939a	1	package DBIx::Class::Schema::Loader::DBI::Oracle;
e7262300	2
	3	use strict;
	4	use warnings;
6b0e47fc	5	use base qw/
	6	DBIx::Class::Schema::Loader::DBI::Component::QuotedDefault
	7	DBIx::Class::Schema::Loader::DBI
	8	/;
e7262300	9	use Carp::Clan qw/^DBIx::Class/;
942bd5e0	10	use mro 'c3';
e7262300	11
e94ccbea	12	our $VERSION = '0.07006';
e7262300	13
	14	=head1 NAME
	15
	16	DBIx::Class::Schema::Loader::DBI::Oracle - DBIx::Class::Schema::Loader::DBI
	17	Oracle Implementation.
	18
e7262300	19	=head1 DESCRIPTION
	20
	21	See L<DBIx::Class::Schema::Loader::Base>.
	22
e7262300	23	=cut
e7262300	24
d0e184e9	25	sub _setup {
	26	my $self = shift;
	27
	28	$self->next::method(@_);
	29
	30	my $dbh = $self->schema->storage->dbh;
46065bcb	31
	32	my ($current_schema) = $dbh->selectrow_array('SELECT USER FROM DUAL', {});
	33
	34	$self->{db_schema} \|\|= $current_schema;
	35
	36	if (lc($self->db_schema) ne lc($current_schema)) {
	37	$dbh->do('ALTER SESSION SET current_schema=' . $self->db_schema);
	38	}
bc1cb85e	39
	40	if (not defined $self->preserve_case) {
	41	$self->preserve_case(0);
	42	}
3785bc2e	43	elsif ($self->preserve_case) {
c930f78b	44	$self->schema->storage->sql_maker->quote_char('"');
c930f78b	45	$self->schema->storage->sql_maker->name_sep('.');
3785bc2e	46	}
d0e184e9	47	}
d0e184e9	48
075aff97	49	sub _table_as_sql {
e7262300	50	my ($self, $table) = @_;
e7262300	51
075aff97	52	return $self->_quote_table_name($table);
e7262300	53	}
	54
	55	sub _tables_list {
bfb43060	56	my ($self, $opts) = @_;
e7262300	57
	58	my $dbh = $self->schema->storage->dbh;
	59
	60	my @tables;
	61	for my $table ( $dbh->tables(undef, $self->db_schema, '%', 'TABLE,VIEW') ) { #catalog, schema, table, type
	62	my $quoter = $dbh->get_info(29);
	63	$table =~ s/$quoter//g;
	64
	65	# remove "user." (schema) prefixes
	66	$table =~ s/\w+\.//;
	67
	68	next if $table eq 'PLAN_TABLE';
3785bc2e	69	$table = $self->_lc($table);
e7262300	70	push @tables, $1
	71	if $table =~ /\A(\w+)\z/;
	72	}
ffb03c96	73
128f61d8	74	{
	75	# silence a warning from older DBD::Oracles in tests
	76	my $warn_handler = $SIG{__WARN__} \|\| sub { warn @_ };
	77	local $SIG{__WARN__} = sub {
	78	$warn_handler->(@_)
	79	unless $_[0] =~ /^Field \d+ has an Oracle type \(\d+\) which is not explicitly supported/;
	80	};
	81
	82	return $self->_filter_tables(\@tables, $opts);
	83	}
e7262300	84	}
e7262300	85
4337bddf	86	sub _table_columns {
	87	my ($self, $table) = @_;
	88
	89	my $dbh = $self->schema->storage->dbh;
	90
3785bc2e	91	my $sth = $dbh->column_info(undef, $self->db_schema, $self->_uc($table), '%');
3785bc2e	92
b511f36e	93	return [ map $self->_lc($_->{COLUMN_NAME}), @{ $sth->fetchall_arrayref({ COLUMN_NAME => 1 }) \|\| [] } ];
4337bddf	94	}
4337bddf	95
e7262300	96	sub _table_uniq_info {
	97	my ($self, $table) = @_;
	98
e7262300	99	my $dbh = $self->schema->storage->dbh;
	100
	101	my $sth = $dbh->prepare_cached(
65ab592d	102	q{
c7bf4194	103	SELECT constraint_name, acc.column_name
c7bf4194	104	FROM all_constraints JOIN all_cons_columns acc USING (constraint_name)
8803e4ed	105	WHERE acc.table_name=? and acc.owner = ? AND constraint_type='U'
c7bf4194	106	ORDER BY acc.position
65ab592d	107	},
65ab592d	108	{}, 1);
e7262300	109
3785bc2e	110	$sth->execute($self->_uc($table),$self->{db_schema} );
e7262300	111	my %constr_names;
e7262300	112	while(my $constr = $sth->fetchrow_arrayref) {
f28e7eae	113	my $constr_name = $self->_lc($constr->[0]);
3785bc2e	114	my $constr_col = $self->_lc($constr->[1]);
e7262300	115	$constr_name =~ s/\Q$self->{_quoter}\E//;
3785bc2e	116	$constr_col =~ s/\Q$self->{_quoter}\E//;
3785bc2e	117	push @{$constr_names{$constr_name}}, $constr_col;
e7262300	118	}
65ab592d	119
65ab592d	120	my @uniqs = map { [ $_ => $constr_names{$_} ] } keys %constr_names;
e7262300	121	return \@uniqs;
	122	}
	123
4cd5155b	124	sub _table_comment {
	125	my ( $self, $table ) = @_;
	126	my ($table_comment) = $self->schema->storage->dbh->selectrow_array(
	127	q{
	128	SELECT comments FROM all_tab_comments
	129	WHERE owner = ?
	130	AND table_name = ?
	131	AND table_type = 'TABLE'
	132	}, undef, $self->db_schema, $self->_uc($table)
	133	);
	134
	135	return $table_comment
	136	}
	137
	138	sub _column_comment {
	139	my ( $self, $table, $column_number, $column_name ) = @_;
	140	my ($column_comment) = $self->schema->storage->dbh->selectrow_array(
	141	q{
	142	SELECT comments FROM all_col_comments
	143	WHERE owner = ?
	144	AND table_name = ?
	145	AND column_name = ?
	146	}, undef, $self->db_schema, $self->_uc( $table ), $self->_uc( $column_name )
	147	);
	148	return $column_comment
	149	}
	150
e7262300	151	sub _table_pk_info {
3785bc2e	152	my ($self, $table) = (shift, shift);
	153
	154	return $self->next::method($self->_uc($table), @_);
e7262300	155	}
	156
	157	sub _table_fk_info {
3785bc2e	158	my ($self, $table) = (shift, shift);
e7262300	159
3785bc2e	160	my $rels = $self->next::method($self->_uc($table), @_);
e7262300	161
65ab592d	162	foreach my $rel (@$rels) {
3785bc2e	163	$rel->{remote_table} = $self->_lc($rel->{remote_table});
e7262300	164	}
e7262300	165
65ab592d	166	return $rels;
	167	}
	168
	169	sub _columns_info_for {
760fd65c	170	my ($self, $table) = (shift, shift);
e7262300	171
3785bc2e	172	my $result = $self->next::method($self->_uc($table), @_);
fb328d1a	173
fb328d1a	174	my $dbh = $self->schema->storage->dbh;
fb328d1a	175
5cd600fa	176	local $dbh->{LongReadLen} = 100000;
	177	local $dbh->{LongTruncOk} = 1;
	178
760fd65c	179	my $sth = $dbh->prepare_cached(q{
5cd600fa	180	SELECT atc.column_name, ut.trigger_body
760fd65c	181	FROM all_triggers ut
	182	JOIN all_trigger_cols atc USING (trigger_name)
	183	WHERE atc.table_name = ?
	184	AND lower(column_usage) LIKE '%new%' AND lower(column_usage) LIKE '%out%'
	185	AND upper(trigger_type) LIKE '%BEFORE EACH ROW%' AND lower(triggering_event) LIKE '%insert%'
	186	}, {}, 1);
	187
3785bc2e	188	$sth->execute($self->_uc($table));
760fd65c	189
5cd600fa	190	while (my ($col_name, $trigger_body) = $sth->fetchrow_array) {
	191	$col_name = $self->_lc($col_name);
	192
	193	$result->{$col_name}{is_auto_increment} = 1;
	194
69219349	195	if (my ($seq_schema, $seq_name) = $trigger_body =~ /(?:\."?(\w+)"?)?"?(\w+)"?\.nextval/i) {
1db66065	196	$seq_schema = $self->_lc($seq_schema \|\| $self->db_schema);
69219349	197	$seq_name = $self->_lc($seq_name);
5cd600fa	198
69219349	199	$result->{$col_name}{sequence} = ($self->qualify_objects ? ($seq_schema . '.') : '') . $seq_name;
5cd600fa	200	}
760fd65c	201	}
	202
	203	while (my ($col, $info) = each %$result) {
	204	no warnings 'uninitialized';
	205
	206	if ($info->{data_type} =~ /^(?:n?[cb]lob\|long(?: raw)?\|bfile\|date\|binary_(?:float\|double)\|rowid)\z/i) {
	207	delete $info->{size};
	208	}
	209
	210	if ($info->{data_type} =~ /^n(?:var)?char2?\z/i) {
	211	$info->{size} = $info->{size} / 2;
	212	}
	213	elsif (lc($info->{data_type}) eq 'number') {
4ea15dfe	214	$info->{original}{data_type} = 'number';
4ea15dfe	215	$info->{data_type} = 'numeric';
760fd65c	216
760fd65c	217	if (eval { $info->{size}[0] == 38 && $info->{size}[1] == 0 }) {
4ea15dfe	218	$info->{original}{size} = $info->{size};
4ea15dfe	219
760fd65c	220	$info->{data_type} = 'integer';
	221	delete $info->{size};
	222	}
	223	}
	224	elsif (my ($precision) = $info->{data_type} =~ /^timestamp\((\d+)\)(?: with (?:local )?time zone)?\z/i) {
	225	$info->{data_type} = join ' ', $info->{data_type} =~ /[a-z]+/ig;
	226
	227	if ($precision == 6) {
	228	delete $info->{size};
	229	}
	230	else {
	231	$info->{size} = $precision;
	232	}
	233	}
	234	elsif (($precision) = $info->{data_type} =~ /^interval year\((\d+)\) to month\z/i) {
	235	$info->{data_type} = join ' ', $info->{data_type} =~ /[a-z]+/ig;
	236
	237	if ($precision == 2) {
	238	delete $info->{size};
	239	}
	240	else {
	241	$info->{size} = $precision;
	242	}
	243	}
	244	elsif (my ($day_precision, $second_precision) = $info->{data_type} =~ /^interval day\((\d+)\) to second\((\d+)\)\z/i) {
	245	$info->{data_type} = join ' ', $info->{data_type} =~ /[a-z]+/ig;
	246
	247	if ($day_precision == 2 && $second_precision == 6) {
	248	delete $info->{size};
	249	}
	250	else {
	251	$info->{size} = [ $day_precision, $second_precision ];
	252	}
	253	}
1c22571b	254	elsif (lc($info->{data_type}) eq 'float') {
	255	$info->{original}{data_type} = 'float';
	256	$info->{original}{size} = $info->{size};
	257
	258	if ($info->{size} <= 63) {
	259	$info->{data_type} = 'real';
	260	}
	261	else {
	262	$info->{data_type} = 'double precision';
	263	}
	264	delete $info->{size};
	265	}
760fd65c	266	elsif (lc($info->{data_type}) eq 'urowid' && $info->{size} == 4000) {
	267	delete $info->{size};
	268	}
3785bc2e	269	elsif (lc($info->{data_type}) eq 'date') {
	270	$info->{data_type} = 'datetime';
	271	$info->{original}{data_type} = 'date';
	272	}
1c22571b	273	elsif (lc($info->{data_type}) eq 'binary_float') {
	274	$info->{data_type} = 'real';
	275	$info->{original}{data_type} = 'binary_float';
	276	}
	277	elsif (lc($info->{data_type}) eq 'binary_double') {
	278	$info->{data_type} = 'double precision';
	279	$info->{original}{data_type} = 'binary_double';
	280	}
760fd65c	281
268cc246	282	if ((eval { lc(${ $info->{default_value} }) }\|\|'') eq 'sysdate') {
3785bc2e	283	my $current_timestamp = 'current_timestamp';
3785bc2e	284	$info->{default_value} = \$current_timestamp;
701cd3e3	285
	286	my $sysdate = 'sysdate';
	287	$info->{original}{default_value} = \$sysdate;
760fd65c	288	}
fb328d1a	289	}
fb328d1a	290
760fd65c	291	return $result;
fb328d1a	292	}
fb328d1a	293
e7262300	294	=head1 SEE ALSO
	295
	296	L<DBIx::Class::Schema::Loader>, L<DBIx::Class::Schema::Loader::Base>,
	297	L<DBIx::Class::Schema::Loader::DBI>
	298
	299	=head1 AUTHOR
	300
9cc8e7e1	301	See L<DBIx::Class::Schema::Loader/AUTHOR> and L<DBIx::Class::Schema::Loader/CONTRIBUTORS>.
e7262300	302
be80bba7	303	=head1 LICENSE
	304
	305	This library is free software; you can redistribute it and/or modify it under
	306	the same terms as Perl itself.
fb328d1a	307
e7262300	308	=cut
	309
	310	1;
760fd65c	311	# vim:et sts=4 sw=4 tw=0: