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996be9ee |
1 | package DBIx::Class::Schema::Loader::DBI::DB2; |
2 | |
3 | use strict; |
4 | use warnings; |
41968729 |
5 | use base qw/ |
6 | DBIx::Class::Schema::Loader::DBI::Component::QuotedDefault |
7 | DBIx::Class::Schema::Loader::DBI |
8 | /; |
fa994d3c |
9 | use Carp::Clan qw/^DBIx::Class/; |
996be9ee |
10 | use Class::C3; |
11 | |
dc767cd3 |
12 | our $VERSION = '0.05001'; |
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13 | |
996be9ee |
14 | =head1 NAME |
15 | |
16 | DBIx::Class::Schema::Loader::DBI::DB2 - DBIx::Class::Schema::Loader::DBI DB2 Implementation. |
17 | |
18 | =head1 SYNOPSIS |
19 | |
20 | package My::Schema; |
21 | use base qw/DBIx::Class::Schema::Loader/; |
22 | |
59cfa251 |
23 | __PACKAGE__->loader_options( db_schema => "MYSCHEMA" ); |
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24 | |
25 | 1; |
26 | |
27 | =head1 DESCRIPTION |
28 | |
29 | See L<DBIx::Class::Schema::Loader::Base>. |
30 | |
31 | =cut |
32 | |
7a930e63 |
33 | sub _setup { |
34 | my $self = shift; |
35 | |
36 | $self->next::method(@_); |
37 | |
38 | my $dbh = $self->schema->storage->dbh; |
39 | $self->{db_schema} ||= $dbh->selectrow_array('VALUES(CURRENT_USER)', {}); |
40 | } |
41 | |
996be9ee |
42 | sub _table_uniq_info { |
43 | my ($self, $table) = @_; |
44 | |
45 | my @uniqs; |
46 | |
47 | my $dbh = $self->schema->storage->dbh; |
48 | |
5223f24a |
49 | my $sth = $self->{_cache}->{db2_uniq} ||= $dbh->prepare( |
50 | q{SELECT kcu.COLNAME, kcu.CONSTNAME, kcu.COLSEQ |
51 | FROM SYSCAT.TABCONST as tc |
52 | JOIN SYSCAT.KEYCOLUSE as kcu ON tc.CONSTNAME = kcu.CONSTNAME |
53 | WHERE tc.TABSCHEMA = ? and tc.TABNAME = ? and tc.TYPE = 'U'} |
4421d6a3 |
54 | ) or die $DBI::errstr; |
5223f24a |
55 | |
a168c1c4 |
56 | $sth->execute($self->db_schema, uc $table) or die $DBI::errstr; |
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57 | |
58 | my %keydata; |
59 | while(my $row = $sth->fetchrow_arrayref) { |
60 | my ($col, $constname, $seq) = @$row; |
61 | push(@{$keydata{$constname}}, [ $seq, lc $col ]); |
62 | } |
63 | foreach my $keyname (keys %keydata) { |
64 | my @ordered_cols = map { $_->[1] } sort { $a->[0] <=> $b->[0] } |
65 | @{$keydata{$keyname}}; |
66 | push(@uniqs, [ $keyname => \@ordered_cols ]); |
67 | } |
4421d6a3 |
68 | |
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69 | $sth->finish; |
70 | |
71 | return \@uniqs; |
72 | } |
73 | |
072d5aae |
74 | # DBD::DB2 doesn't follow the DBI API for ->tables |
75 | sub _tables_list { |
a168c1c4 |
76 | my $self = shift; |
072d5aae |
77 | |
78 | my $dbh = $self->schema->storage->dbh; |
79 | my @tables = map { lc } $dbh->tables( |
80 | $self->db_schema ? { TABLE_SCHEM => $self->db_schema } : undef |
81 | ); |
82 | s/\Q$self->{_quoter}\E//g for @tables; |
83 | s/^.*\Q$self->{_namesep}\E// for @tables; |
84 | |
85 | return @tables; |
a168c1c4 |
86 | } |
87 | |
88 | sub _table_pk_info { |
89 | my ($self, $table) = @_; |
90 | return $self->next::method(uc $table); |
91 | } |
92 | |
93 | sub _table_fk_info { |
94 | my ($self, $table) = @_; |
95 | |
96 | my $rels = $self->next::method(uc $table); |
97 | |
98 | foreach my $rel (@$rels) { |
99 | $rel->{remote_table} = lc $rel->{remote_table}; |
100 | } |
101 | |
102 | return $rels; |
103 | } |
104 | |
105 | sub _columns_info_for { |
106 | my ($self, $table) = @_; |
107 | return $self->next::method(uc $table); |
108 | } |
109 | |
772cfe65 |
110 | sub _extra_column_info { |
111 | my ($self, $info) = @_; |
112 | my %extra_info; |
113 | |
114 | my ($table, $column) = @$info{qw/TABLE_NAME COLUMN_NAME/}; |
115 | |
116 | my $dbh = $self->schema->storage->dbh; |
117 | my $sth = $dbh->prepare_cached( |
118 | q{ |
119 | SELECT COUNT(*) |
120 | FROM syscat.columns |
121 | WHERE tabschema = ? AND tabname = ? AND colname = ? |
122 | AND identity = 'Y' AND generated != '' |
123 | }, |
124 | {}, 1); |
125 | $sth->execute($self->db_schema, $table, $column); |
126 | if ($sth->fetchrow_array) { |
127 | $extra_info{is_auto_increment} = 1; |
128 | } |
129 | |
130 | return \%extra_info; |
131 | } |
132 | |
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133 | =head1 SEE ALSO |
134 | |
135 | L<DBIx::Class::Schema::Loader>, L<DBIx::Class::Schema::Loader::Base>, |
136 | L<DBIx::Class::Schema::Loader::DBI> |
137 | |
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138 | =head1 AUTHOR |
139 | |
9cc8e7e1 |
140 | See L<DBIx::Class::Schema::Loader/AUTHOR> and L<DBIx::Class::Schema::Loader/CONTRIBUTORS>. |
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141 | |
142 | =head1 LICENSE |
143 | |
144 | This library is free software; you can redistribute it and/or modify it under |
145 | the same terms as Perl itself. |
146 | |
996be9ee |
147 | =cut |
148 | |
149 | 1; |