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1 | package DBIx::Class::Schema::Loader::DBI::DB2; |
2 | |
3 | use strict; |
4 | use warnings; |
5 | use base 'DBIx::Class::Schema::Loader::DBI'; |
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6 | use Carp::Clan qw/^DBIx::Class/; |
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7 | use Class::C3; |
8 | |
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9 | our $VERSION = '0.04999_04'; |
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10 | |
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11 | =head1 NAME |
12 | |
13 | DBIx::Class::Schema::Loader::DBI::DB2 - DBIx::Class::Schema::Loader::DBI DB2 Implementation. |
14 | |
15 | =head1 SYNOPSIS |
16 | |
17 | package My::Schema; |
18 | use base qw/DBIx::Class::Schema::Loader/; |
19 | |
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20 | __PACKAGE__->loader_options( db_schema => "MYSCHEMA" ); |
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21 | |
22 | 1; |
23 | |
24 | =head1 DESCRIPTION |
25 | |
26 | See L<DBIx::Class::Schema::Loader::Base>. |
27 | |
28 | =cut |
29 | |
30 | sub _table_uniq_info { |
31 | my ($self, $table) = @_; |
32 | |
33 | my @uniqs; |
34 | |
35 | my $dbh = $self->schema->storage->dbh; |
36 | |
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37 | my $sth = $self->{_cache}->{db2_uniq} ||= $dbh->prepare( |
38 | q{SELECT kcu.COLNAME, kcu.CONSTNAME, kcu.COLSEQ |
39 | FROM SYSCAT.TABCONST as tc |
40 | JOIN SYSCAT.KEYCOLUSE as kcu ON tc.CONSTNAME = kcu.CONSTNAME |
41 | WHERE tc.TABSCHEMA = ? and tc.TABNAME = ? and tc.TYPE = 'U'} |
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42 | ) or die $DBI::errstr; |
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43 | |
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44 | $sth->execute($self->db_schema, uc $table) or die $DBI::errstr; |
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45 | |
46 | my %keydata; |
47 | while(my $row = $sth->fetchrow_arrayref) { |
48 | my ($col, $constname, $seq) = @$row; |
49 | push(@{$keydata{$constname}}, [ $seq, lc $col ]); |
50 | } |
51 | foreach my $keyname (keys %keydata) { |
52 | my @ordered_cols = map { $_->[1] } sort { $a->[0] <=> $b->[0] } |
53 | @{$keydata{$keyname}}; |
54 | push(@uniqs, [ $keyname => \@ordered_cols ]); |
55 | } |
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56 | |
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57 | $sth->finish; |
58 | |
59 | return \@uniqs; |
60 | } |
61 | |
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62 | # DBD::DB2 doesn't follow the DBI API for ->tables |
63 | sub _tables_list { |
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64 | my $self = shift; |
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65 | |
66 | my $dbh = $self->schema->storage->dbh; |
67 | my @tables = map { lc } $dbh->tables( |
68 | $self->db_schema ? { TABLE_SCHEM => $self->db_schema } : undef |
69 | ); |
70 | s/\Q$self->{_quoter}\E//g for @tables; |
71 | s/^.*\Q$self->{_namesep}\E// for @tables; |
72 | |
73 | return @tables; |
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74 | } |
75 | |
76 | sub _table_pk_info { |
77 | my ($self, $table) = @_; |
78 | return $self->next::method(uc $table); |
79 | } |
80 | |
81 | sub _table_fk_info { |
82 | my ($self, $table) = @_; |
83 | |
84 | my $rels = $self->next::method(uc $table); |
85 | |
86 | foreach my $rel (@$rels) { |
87 | $rel->{remote_table} = lc $rel->{remote_table}; |
88 | } |
89 | |
90 | return $rels; |
91 | } |
92 | |
93 | sub _columns_info_for { |
94 | my ($self, $table) = @_; |
95 | return $self->next::method(uc $table); |
96 | } |
97 | |
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98 | sub _extra_column_info { |
99 | my ($self, $info) = @_; |
100 | my %extra_info; |
101 | |
102 | my ($table, $column) = @$info{qw/TABLE_NAME COLUMN_NAME/}; |
103 | |
104 | my $dbh = $self->schema->storage->dbh; |
105 | my $sth = $dbh->prepare_cached( |
106 | q{ |
107 | SELECT COUNT(*) |
108 | FROM syscat.columns |
109 | WHERE tabschema = ? AND tabname = ? AND colname = ? |
110 | AND identity = 'Y' AND generated != '' |
111 | }, |
112 | {}, 1); |
113 | $sth->execute($self->db_schema, $table, $column); |
114 | if ($sth->fetchrow_array) { |
115 | $extra_info{is_auto_increment} = 1; |
116 | } |
117 | |
118 | return \%extra_info; |
119 | } |
120 | |
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121 | =head1 SEE ALSO |
122 | |
123 | L<DBIx::Class::Schema::Loader>, L<DBIx::Class::Schema::Loader::Base>, |
124 | L<DBIx::Class::Schema::Loader::DBI> |
125 | |
126 | =cut |
127 | |
128 | 1; |