1 package DBIx::Class::Schema::Loader::DB2;
6 use base 'DBIx::Class::Schema::Loader::Generic';
10 DBIx::Class::Schema::Loader::DB2 - DBIx::Class::Schema::Loader DB2 Implementation.
14 use DBIx::Schema::Class::Loader;
16 # $loader is a DBIx::Class::Schema::Loader::DB2
17 my $loader = DBIx::Class::Schema::Loader->new(
18 dsn => "dbi:DB2:dbname",
21 db_schema => "MYSCHEMA",
27 See L<DBIx::Class::Schema::Loader>.
32 return qw/DBIx::Class::PK::Auto::DB2/;
38 my $db_schema = uc $self->db_schema;
39 my $dbh = $self->schema->storage->dbh;
40 my $quoter = $dbh->get_info(29) || q{"};
42 # this is split out to avoid version parsing errors...
43 my $is_dbd_db2_gte_114 = ( $DBD::DB2::VERSION >= 1.14 );
44 my @tables = $is_dbd_db2_gte_114 ?
45 $dbh->tables( { TABLE_SCHEM => '%', TABLE_TYPE => 'TABLE,VIEW' } )
47 # People who use table or schema names that aren't identifiers deserve
48 # what they get. Still, FIXME?
49 s/$quoter//g for @tables;
50 @tables = grep {!/^SYSIBM\./ and !/^SYSCAT\./ and !/^SYSSTAT\./} @tables;
51 @tables = grep {/^$db_schema\./} @tables if($db_schema);
56 my ( $self, $table ) = @_;
58 # print "_table_info($table)\n";
59 my ($db_schema, $tabname) = split /\./, $table, 2;
60 # print "DB_Schema: $db_schema, Table: $tabname\n";
62 # FIXME: Horribly inefficient and just plain evil. (JMM)
63 my $dbh = $self->schema->storage->dbh;
64 $dbh->{RaiseError} = 1;
66 my $sth = $dbh->prepare(<<'SQL') or die;
68 FROM SYSCAT.COLUMNS as c
69 WHERE c.TABSCHEMA = ? and c.TABNAME = ?
72 $sth->execute($db_schema, $tabname) or die;
73 my @cols = map { lc } map { @$_ } @{$sth->fetchall_arrayref};
77 $sth = $dbh->prepare(<<'SQL') or die;
79 FROM SYSCAT.TABCONST as tc
80 JOIN SYSCAT.KEYCOLUSE as kcu ON tc.constname = kcu.constname
81 WHERE tc.TABSCHEMA = ? and tc.TABNAME = ? and tc.TYPE = 'P'
84 $sth->execute($db_schema, $tabname) or die;
86 my @pri = map { lc } map { @$_ } @{$sth->fetchall_arrayref};
88 return ( \@cols, \@pri );
91 # Find and setup relationships
92 sub _load_relationships {
95 my $dbh = $self->schema->storage->dbh;
97 my $sth = $dbh->prepare(<<'SQL') or die;
98 SELECT SR.COLCOUNT, SR.REFTBNAME, SR.PKCOLNAMES, SR.FKCOLNAMES
99 FROM SYSIBM.SYSRELS SR WHERE SR.TBNAME = ?
102 foreach my $table ( $self->tables ) {
103 next if ! $sth->execute(uc $table);
104 while(my $res = $sth->fetchrow_arrayref()) {
105 my ($colcount, $other, $other_column, $column) =
108 my @self_cols = split(' ',$column);
109 my @other_cols = split(' ',$other_column);
110 if(@self_cols != $colcount || @other_cols != $colcount) {
111 die "Column count discrepancy while getting rel info";
115 for(my $i = 0; $i < @self_cols; $i++) {
116 $cond{$other_cols[$i]} = $self_cols[$i];
119 eval { $self->_make_cond_rel ($table, $other, \%cond); };
120 warn qq/\# belongs_to_many failed "$@"\n\n/
121 if $@ && $self->debug;
131 L<DBIx::Class::Schema::Loader>