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1 | package DBIx::Class::Schema::Loader::DBI::Sybase; |
2 | |
3 | use strict; |
4 | use warnings; |
5 | use base 'DBIx::Class::Schema::Loader::DBI'; |
6 | use Carp::Clan qw/^DBIx::Class/; |
7 | use Class::C3; |
8 | |
9 | our $VERSION = '0.04999_06'; |
10 | |
11 | =head1 NAME |
12 | |
13 | DBIx::Class::Schema::Loader::DBI::Sybase - DBIx::Class::Schema::Loader::DBI Sybase Implementation. |
14 | |
15 | =head1 SYNOPSIS |
16 | |
17 | package My::Schema; |
18 | use base qw/DBIx::Class::Schema::Loader/; |
19 | |
20 | __PACKAGE__->loader_options( debug => 1 ); |
21 | |
22 | 1; |
23 | |
24 | =head1 DESCRIPTION |
25 | |
26 | See L<DBIx::Class::Schema::Loader::Base>. |
27 | |
28 | =cut |
29 | |
30 | sub _setup { |
31 | my $self = shift; |
32 | |
33 | $self->next::method(@_); |
34 | $self->{db_schema} ||= 'dbo'; |
35 | } |
36 | |
37 | sub _rebless { |
38 | my $self = shift; |
39 | |
40 | my $dbh = $self->schema->storage->dbh; |
41 | my $DBMS_VERSION = @{$dbh->selectrow_arrayref(qq{sp_server_info \@attribute_id=1})}[2]; |
42 | if ($DBMS_VERSION =~ /^Microsoft /i) { |
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43 | my $subclass = 'DBIx::Class::Schema::Loader::DBI::MSSQL'; |
44 | if ($self->load_optional_class($subclass) && !$self->isa($subclass)) { |
45 | bless $self, $subclass; |
46 | $self->_rebless; |
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47 | } |
48 | } |
49 | } |
50 | |
51 | sub _table_columns { |
52 | my ($self, $table) = @_; |
53 | |
54 | my $dbh = $self->schema->storage->dbh; |
55 | my $columns = $dbh->selectcol_arrayref(qq{SELECT name FROM syscolumns WHERE id = (SELECT id FROM sysobjects WHERE name = '$table' AND type = 'U')}); |
56 | |
57 | return $columns; |
58 | } |
59 | |
60 | sub _table_pk_info { |
61 | my ($self, $table) = @_; |
62 | |
63 | my $dbh = $self->schema->storage->dbh; |
64 | my $sth = $dbh->prepare(qq{sp_pkeys '$table'}); |
65 | $sth->execute; |
66 | |
67 | my @keydata; |
68 | |
69 | while (my $row = $sth->fetchrow_hashref) { |
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70 | push @keydata, lc $row->{column_name}; |
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71 | } |
72 | |
73 | return \@keydata; |
74 | } |
75 | |
76 | sub _table_fk_info { |
77 | my ($self, $table) = @_; |
78 | |
79 | my ($local_cols, $remote_cols, $remote_table, @rels); |
80 | my $dbh = $self->schema->storage->dbh; |
81 | # hide "Object does not exist in this database." when trying to fetch fkeys |
82 | $dbh->{syb_err_handler} = sub { return 0 if $_[0] == 17461; }; |
83 | my $sth = $dbh->prepare(qq{sp_fkeys \@FKTABLE_NAME = '$table'}); |
84 | $sth->execute; |
85 | |
86 | while (my $row = $sth->fetchrow_hashref) { |
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87 | next unless $row->{FK_NAME}; |
88 | my $fk = $row->{FK_NAME}; |
89 | push @{$local_cols->{$fk}}, lc $row->{FKCOLUMN_NAME}; |
90 | push @{$remote_cols->{$fk}}, lc $row->{PKCOLUMN_NAME}; |
91 | $remote_table->{$fk} = $row->{PKTABLE_NAME}; |
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92 | } |
93 | |
94 | foreach my $fk (keys %$remote_table) { |
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95 | push @rels, { |
96 | local_columns => \@{$local_cols->{$fk}}, |
97 | remote_columns => \@{$remote_cols->{$fk}}, |
98 | remote_table => $remote_table->{$fk}, |
99 | }; |
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100 | |
101 | } |
102 | return \@rels; |
103 | } |
104 | |
105 | sub _table_uniq_info { |
106 | my ($self, $table) = @_; |
107 | |
108 | my $dbh = $self->schema->storage->dbh; |
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109 | my $sth = $dbh->prepare(qq{sp_helpconstraint \@objname='$table', \@nomsg='nomsg'}); |
110 | $sth->execute; |
111 | |
112 | my $constraints; |
113 | while (my $row = $sth->fetchrow_hashref) { |
114 | my $type = $row->{constraint_type} || ''; |
115 | if ($type =~ /^unique/i) { |
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116 | my $name = lc $row->{constraint_name}; |
117 | push @{$constraints->{$name}}, ( split /,/, lc $row->{constraint_keys} ); |
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118 | } |
119 | } |
120 | |
121 | my @uniqs = map { [ $_ => $constraints->{$_} ] } keys %$constraints; |
122 | return \@uniqs; |
123 | } |
124 | |
125 | sub _extra_column_info { |
126 | my ($self, $info) = @_; |
127 | my %extra_info; |
128 | |
129 | my ($table, $column) = @$info{qw/TABLE_NAME COLUMN_NAME/}; |
130 | |
131 | my $dbh = $self->schema->storage->dbh; |
132 | 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'}); |
133 | $sth->execute(); |
134 | |
135 | if ($sth->fetchrow_array) { |
136 | $extra_info{is_auto_increment} = 1; |
137 | } |
138 | |
139 | return \%extra_info; |
140 | } |
141 | |
142 | =head1 SEE ALSO |
143 | |
144 | L<DBIx::Class::Schema::Loader>, L<DBIx::Class::Schema::Loader::Base>, |
145 | L<DBIx::Class::Schema::Loader::DBI> |
146 | |
147 | =head1 AUTHOR |
148 | |
149 | Justin Hunter C<justin.d.hunter@gmail.com> |
150 | |
151 | =cut |
152 | |
153 | 1; |