1 package DBIx::Class::Schema::Loader::DBI::Sybase;
5 use base 'DBIx::Class::Schema::Loader::DBI::Sybase::Common';
6 use Carp::Clan qw/^DBIx::Class/;
9 our $VERSION = '0.07010';
13 DBIx::Class::Schema::Loader::DBI::Sybase - DBIx::Class::Schema::Loader::DBI
14 Sybase ASE Implementation.
18 See L<DBIx::Class::Schema::Loader> and L<DBIx::Class::Schema::Loader::Base>.
25 $self->next::method(@_);
27 if (not defined $self->preserve_case) {
28 $self->preserve_case(1);
35 my $dbh = $self->schema->storage->dbh;
36 my $DBMS_VERSION = @{$dbh->selectrow_arrayref(qq{sp_server_info \@attribute_id=1})}[2];
37 if ($DBMS_VERSION =~ /^Microsoft /i) {
38 $DBMS_VERSION =~ s/\s/_/g;
39 my $subclass = "DBIx::Class::Schema::Loader::DBI::Sybase::$DBMS_VERSION";
40 if ($self->load_optional_class($subclass) && !$self->isa($subclass)) {
41 bless $self, $subclass;
48 my ($self, $opts) = @_;
50 my $dbh = $self->schema->storage->dbh;
52 my $sth = $dbh->table_info(undef, $self->db_schema, undef, "'TABLE','VIEW'");
54 my @tables = grep $_ ne 'sysquerymetrics',
55 map $_->{table_name}, @{ $sth->fetchall_arrayref({ table_name => 1 }) };
57 return $self->_filter_tables(\@tables, $opts);
61 my ($self, $table) = @_;
63 my $dbh = $self->schema->storage->dbh;
64 my $columns = $dbh->selectcol_arrayref(qq{
66 FROM syscolumns c JOIN sysobjects o
68 WHERE o.name = @{[ $dbh->quote($table) ]} AND o.type = 'U'
75 my ($self, $table) = @_;
77 my $dbh = $self->schema->storage->dbh;
78 my $sth = $dbh->prepare(qq{sp_pkeys @{[ $dbh->quote($table) ]}});
83 while (my $row = $sth->fetchrow_hashref) {
84 push @keydata, $row->{column_name};
91 my ($self, $table) = @_;
93 # check if FK_NAME is supported
95 my $dbh = $self->schema->storage->dbh;
96 local $dbh->{FetchHashKeyName} = 'NAME_lc';
97 # hide "Object does not exist in this database." when trying to fetch fkeys
98 local $dbh->{syb_err_handler} = sub { return $_[0] == 17461 ? 0 : 1 };
99 my $sth = $dbh->prepare(qq{sp_fkeys \@fktable_name = @{[ $dbh->quote($table) ]}});
101 my $row = $sth->fetchrow_hashref;
105 if (exists $row->{fk_name}) {
107 return $self->_table_fk_info_by_name($table);
111 return $self->_table_fk_info_by_sp_helpconstraint($table);
114 sub _table_fk_info_by_name {
115 my ($self, $table) = @_;
116 my ($local_cols, $remote_cols, $remote_table, @rels);
118 my $dbh = $self->schema->storage->dbh;
119 local $dbh->{FetchHashKeyName} = 'NAME_lc';
120 # hide "Object does not exist in this database." when trying to fetch fkeys
121 local $dbh->{syb_err_handler} = sub { return $_[0] == 17461 ? 0 : 1 };
122 my $sth = $dbh->prepare(qq{sp_fkeys \@fktable_name = @{[ $dbh->quote($table) ]}});
125 while (my $row = $sth->fetchrow_hashref) {
126 my $fk = $row->{fk_name};
127 next unless defined $fk;
129 push @{$local_cols->{$fk}}, $row->{fkcolumn_name};
130 push @{$remote_cols->{$fk}}, $row->{pkcolumn_name};
131 $remote_table->{$fk} = $row->{pktable_name};
134 foreach my $fk (keys %$remote_table) {
136 local_columns => \@{$local_cols->{$fk}},
137 remote_columns => \@{$remote_cols->{$fk}},
138 remote_table => $remote_table->{$fk},
145 sub _table_fk_info_by_sp_helpconstraint {
146 my ($self, $table) = @_;
148 my $warn_handler = $SIG{__WARN__} || sub { warn @_ };
149 local $SIG{__WARN__} = sub {
150 $warn_handler->(@_) unless $_[0] =~
151 /^\s*$|^Total Number of|^Details|^(?:--?|=|\+) Number|^Formula for/;
154 my $dbh = $self->schema->storage->dbh;
156 local $dbh->{FetchHashKeyName} = 'NAME_lc';
158 my $sth = $dbh->prepare("sp_helpconstraint $table");
161 my $constraints = $sth->fetchall_arrayref({});
165 foreach my $constraint (map $_->{definition}, @$constraints) {
166 my ($local_cols, $remote_table, $remote_cols) = $constraint =~
167 /^$table FOREIGN KEY \(([^)]+)\) REFERENCES ([^(]+)\(([^)]+)\)/;
169 next unless $local_cols;
171 my @local_cols = split /,\s*/, $local_cols;
172 my @remote_cols = split /,\s*/, $remote_cols;
175 local_columns => \@local_cols,
176 remote_columns => \@remote_cols,
177 remote_table => $remote_table,
184 sub _table_uniq_info {
185 no warnings 'uninitialized'; # for presumably XS weirdness with null operations
186 my ($self, $table) = @_;
188 local $SIG{__WARN__} = sub { warn @_
189 unless $_[0] =~ /^Formula for Calculation:|^(?:--?|\+|=) Number of (?:self )?references|^Total Number of Referential Constraints|^Details:|^\s*$/ };
191 my $dbh = $self->schema->storage->dbh;
192 local $dbh->{FetchHashKeyName} = 'NAME_lc';
193 my $sth = $dbh->prepare(qq{sp_helpconstraint \@objname=@{[ $dbh->quote($table) ]}, \@nomsg='nomsg'});
194 eval { $sth->execute };
198 while (my $row = $sth->fetchrow_hashref) {
199 if (exists $row->{constraint_type}) {
200 my $type = $row->{constraint_type} || '';
201 if ($type =~ /^unique/i) {
202 my $name = $row->{constraint_name};
203 push @{$constraints->{$name}},
204 ( split /,/, $row->{constraint_keys} );
207 my $def = $row->{definition} || next;
208 next unless $def =~ /^unique/i;
209 my $name = $row->{name};
210 my ($keys) = $def =~ /\((.*)\)/;
212 my @keys = split /,/ => $keys;
213 push @{$constraints->{$name}}, @keys;
217 my @uniqs = map { [ $_ => $constraints->{$_} ] } keys %$constraints;
221 # get the correct data types, defaults and size
222 sub _columns_info_for {
225 my $result = $self->next::method(@_);
227 my $dbh = $self->schema->storage->dbh;
228 my $sth = $dbh->prepare(qq{
229 SELECT c.name name, bt.name base_type, ut.name user_type, cm.text deflt, c.prec prec, c.scale scale, c.length len
231 JOIN sysobjects o ON c.id = o.id
232 LEFT JOIN systypes bt ON c.type = bt.type
233 LEFT JOIN systypes ut ON c.usertype = ut.usertype
234 LEFT JOIN syscomments cm
235 ON cm.id = CASE WHEN c.cdefault = 0 THEN c.computedcol ELSE c.cdefault END
236 WHERE o.name = @{[ $dbh->quote($table) ]} AND o.type = 'U'
239 local $dbh->{FetchHashKeyName} = 'NAME_lc';
240 my $info = $sth->fetchall_hashref('name');
242 while (my ($col, $res) = each %$result) {
243 my $data_type = $res->{data_type} = $info->{$col}{user_type} || $info->{$col}{base_type};
245 if ($data_type && $data_type =~ /^timestamp\z/i) {
246 $res->{inflate_datetime} = 0;
249 if (my $default = $info->{$col}{deflt}) {
250 if ($default =~ /^AS \s+ (\S+)/ix) {
252 $res->{default_value} = \$function;
254 if ($function =~ /^getdate\b/) {
255 $res->{inflate_datetime} = 1;
259 $res->{data_type} = undef;
261 elsif ($default =~ /^DEFAULT \s+ (\S+)/ix) {
262 my ($constant_default) = $1 =~ /^['"\[\]]?(.*?)['"\[\]]?\z/;
263 $res->{default_value} = $constant_default;
267 if (my $data_type = $res->{data_type}) {
268 if ($data_type eq 'int') {
269 $data_type = $res->{data_type} = 'integer';
271 elsif ($data_type eq 'decimal') {
272 $data_type = $res->{data_type} = 'numeric';
275 if ($data_type =~ /^(?:text|unitext|image|bigint|integer|smallint|tinyint|real|double|double precision|float|date|time|datetime|smalldatetime|money|smallmoney|timestamp|bit)\z/i) {
278 elsif ($data_type eq 'numeric') {
279 my ($prec, $scale) = @{$info->{$col}}{qw/prec scale/};
281 if ($prec == 18 && $scale == 0) {
285 $res->{size} = [ $prec, $scale ];
288 elsif ($data_type =~ /^(?:unichar|univarchar)\z/i) {
293 if ($data_type eq 'float') {
294 $res->{data_type} = $info->{$col}{len} <= 4 ? 'real' : 'double precision';
301 sub _extra_column_info {
302 my ($self, $table, $column, $info, $dbi_info) = @_;
305 my $dbh = $self->schema->storage->dbh;
306 my $sth = $dbh->prepare(qq{SELECT name FROM syscolumns WHERE id = (SELECT id FROM sysobjects WHERE name = @{[ $dbh->quote($table) ]}) AND (status & 0x80) = 0x80 AND name = @{[ $dbh->quote($column) ]}});
309 if ($sth->fetchrow_array) {
310 $extra_info{is_auto_increment} = 1;
318 L<DBIx::Class::Schema::Loader::DBI::Sybase::Common>,
319 L<DBIx::Class::Schema::Loader>, L<DBIx::Class::Schema::Loader::Base>,
320 L<DBIx::Class::Schema::Loader::DBI>
324 See L<DBIx::Class::Schema::Loader/AUTHOR> and L<DBIx::Class::Schema::Loader/CONTRIBUTORS>.
328 This library is free software; you can redistribute it and/or modify it under
329 the same terms as Perl itself.
334 # vim:et sts=4 sw=4 tw=0: