1 package DBIx::Class::Schema::Loader::DBI::Sybase;
6 DBIx::Class::Schema::Loader::DBI
7 DBIx::Class::Schema::Loader::DBI::Sybase::Common
9 use Carp::Clan qw/^DBIx::Class/;
12 our $VERSION = '0.04999_06';
16 DBIx::Class::Schema::Loader::DBI::Sybase - DBIx::Class::Schema::Loader::DBI Sybase Implementation.
21 use base qw/DBIx::Class::Schema::Loader/;
23 __PACKAGE__->loader_options( debug => 1 );
29 See L<DBIx::Class::Schema::Loader::Base>.
33 sub _is_case_sensitive { 1 }
38 $self->next::method(@_);
39 $self->{db_schema} ||= $self->_build_db_schema;
40 $self->_set_quote_char_and_name_sep;
46 my $dbh = $self->schema->storage->dbh;
47 my $DBMS_VERSION = @{$dbh->selectrow_arrayref(qq{sp_server_info \@attribute_id=1})}[2];
48 if ($DBMS_VERSION =~ /^Microsoft /i) {
49 my $subclass = 'DBIx::Class::Schema::Loader::DBI::MSSQL';
50 if ($self->load_optional_class($subclass) && !$self->isa($subclass)) {
51 bless $self, $subclass;
58 my ($self, $table) = @_;
60 my $dbh = $self->schema->storage->dbh;
61 my $columns = $dbh->selectcol_arrayref(qq{SELECT name FROM syscolumns WHERE id = (SELECT id FROM sysobjects WHERE name = '$table' AND type = 'U')});
67 my ($self, $table) = @_;
69 my $dbh = $self->schema->storage->dbh;
70 my $sth = $dbh->prepare(qq{sp_pkeys '$table'});
75 while (my $row = $sth->fetchrow_hashref) {
76 push @keydata, $row->{column_name};
83 my ($self, $table) = @_;
85 # check if FK_NAME is supported
87 my $dbh = $self->schema->storage->dbh;
88 local $dbh->{FetchHashKeyName} = 'NAME_lc';
89 # hide "Object does not exist in this database." when trying to fetch fkeys
90 local $dbh->{syb_err_handler} = sub { return $_[0] == 17461 ? 0 : 1 };
91 my $sth = $dbh->prepare(qq{sp_fkeys \@fktable_name = '$table'});
93 my $row = $sth->fetchrow_hashref;
97 if (exists $row->{fk_name}) {
99 return $self->_table_fk_info_by_name($table);
103 return $self->_table_fk_info_builder($table);
106 sub _table_fk_info_by_name {
107 my ($self, $table) = @_;
108 my ($local_cols, $remote_cols, $remote_table, @rels);
110 my $dbh = $self->schema->storage->dbh;
111 local $dbh->{FetchHashKeyName} = 'NAME_lc';
112 # hide "Object does not exist in this database." when trying to fetch fkeys
113 local $dbh->{syb_err_handler} = sub { return $_[0] == 17461 ? 0 : 1 };
114 my $sth = $dbh->prepare(qq{sp_fkeys \@fktable_name = '$table'});
117 while (my $row = $sth->fetchrow_hashref) {
118 my $fk = $row->{fk_name};
119 next unless defined $fk;
121 push @{$local_cols->{$fk}}, $row->{fkcolumn_name};
122 push @{$remote_cols->{$fk}}, $row->{pkcolumn_name};
123 $remote_table->{$fk} = $row->{pktable_name};
126 foreach my $fk (keys %$remote_table) {
128 local_columns => \@{$local_cols->{$fk}},
129 remote_columns => \@{$remote_cols->{$fk}},
130 remote_table => $remote_table->{$fk},
137 sub _table_fk_info_builder {
138 my ($self, $table) = @_;
140 my $dbh = $self->schema->storage->dbh;
141 local $dbh->{FetchHashKeyName} = 'NAME_lc';
142 # hide "Object does not exist in this database." when trying to fetch fkeys
143 local $dbh->{syb_err_handler} = sub { return 0 if $_[0] == 17461; };
144 my $sth = $dbh->prepare(qq{sp_fkeys \@fktable_name = '$table'});
148 while (my $row = $sth->fetchrow_hashref) {
149 (my $ksq = $row->{key_seq}) =~ s/\s+//g;
151 my @keys = qw/pktable_name pkcolumn_name fktable_name fkcolumn_name/;
153 @ds{@keys} = @{$row}{@keys};
156 push @{ $fk_info[$ksq] }, \%ds;
159 my $max_keys = $#fk_info;
161 for my $level (reverse 1 .. $max_keys) {
163 $level_rels[$level] = splice @fk_info, $level, 1;
164 my $count = @{ $level_rels[$level] };
166 for my $sub_level (reverse 1 .. $level-1) {
167 my $total = @{ $fk_info[$sub_level] };
169 $level_rels[$sub_level] = [
170 splice @{ $fk_info[$sub_level] }, $total-$count, $count
175 my @rel = map shift @$_, @level_rels[1..$level];
177 last unless defined $rel[0];
179 my @local_columns = map $_->{fkcolumn_name}, @rel;
180 my @remote_columns = map $_->{pkcolumn_name}, @rel;
181 my $remote_table = $rel[0]->{pktable_name};
184 local_columns => \@local_columns,
185 remote_columns => \@remote_columns,
186 remote_table => $remote_table
194 sub _table_uniq_info {
195 my ($self, $table) = @_;
197 local $SIG{__WARN__} = sub {};
199 my $dbh = $self->schema->storage->dbh;
200 local $dbh->{FetchHashKeyName} = 'NAME_lc';
201 my $sth = $dbh->prepare(qq{sp_helpconstraint \@objname='$table', \@nomsg='nomsg'});
202 eval { $sth->execute };
206 while (my $row = $sth->fetchrow_hashref) {
207 if (exists $row->{constraint_type}) {
208 my $type = $row->{constraint_type} || '';
209 if ($type =~ /^unique/i) {
210 my $name = $row->{constraint_name};
211 push @{$constraints->{$name}},
212 ( split /,/, $row->{constraint_keys} );
215 my $def = $row->{definition} || next;
216 next unless $def =~ /^unique/i;
217 my $name = $row->{name};
218 my ($keys) = $def =~ /\((.*)\)/;
220 my @keys = split /,/ => $keys;
221 push @{$constraints->{$name}}, @keys;
225 my @uniqs = map { [ $_ => $constraints->{$_} ] } keys %$constraints;
229 sub _extra_column_info {
230 my ($self, $info) = @_;
233 my ($table, $column) = @$info{qw/TABLE_NAME COLUMN_NAME/};
235 my $dbh = $self->schema->storage->dbh;
236 my $sth = $dbh->prepare(qq{SELECT name FROM syscolumns WHERE id = (SELECT id FROM sysobjects WHERE name = '$table') AND (status & 0x80) = 0x80 AND name = '$column'});
239 if ($sth->fetchrow_array) {
240 $extra_info{is_auto_increment} = 1;
248 L<DBIx::Class::Schema::Loader>, L<DBIx::Class::Schema::Loader::Base>,
249 L<DBIx::Class::Schema::Loader::DBI>
253 Justin Hunter C<justin.d.hunter@gmail.com>
257 Rafael Kitover <rkitover@cpan.org>