}
$sth->finish;
- return $self->_table_fk_info_builder($table);
+ return $self->_table_fk_info_by_sp_helpconstraint($table);
}
sub _table_fk_info_by_name {
return \@rels;
}
-sub _table_fk_info_builder {
+sub _table_fk_info_by_sp_helpconstraint {
my ($self, $table) = @_;
+ my $warn_handler = $SIG{__WARN__} || sub { warn @_ };
+ local $SIG{__WARN__} = sub {
+ $warn_handler->(@_) unless $_[0] =~
+ /^\s*$|^Total Number of|^Details|^(?:--?|=|\+) Number|^Formula for/;
+ };
+
my $dbh = $self->schema->storage->dbh;
- local $dbh->{FetchHashKeyName} = 'NAME_lc';
- # hide "Object does not exist in this database." when trying to fetch fkeys
- local $dbh->{syb_err_handler} = sub { return 0 if $_[0] == 17461; };
- my $sth = $dbh->prepare(qq{sp_fkeys \@fktable_name = @{[ $dbh->quote($table) ]}});
- $sth->execute;
- my @fk_info;
- while (my $row = $sth->fetchrow_hashref) {
- (my $ksq = $row->{key_seq}) =~ s/\s+//g;
+ local $dbh->{FetchHashKeyName} = 'NAME_lc';
- my @keys = qw/pktable_name pkcolumn_name fktable_name fkcolumn_name/;
- my %ds;
- @ds{@keys} = @{$row}{@keys};
- $ds{key_seq} = $ksq;
+ my $sth = $dbh->prepare("sp_helpconstraint $table");
+ $sth->execute;
- push @{ $fk_info[$ksq] }, \%ds;
- }
+ my $constraints = $sth->fetchall_arrayref({});
- my $max_keys = $#fk_info;
my @rels;
- for my $level (reverse 1 .. $max_keys) {
- my @level_rels;
- $level_rels[$level] = splice @fk_info, $level, 1;
- my $count = @{ $level_rels[$level] };
- for my $sub_level (reverse 1 .. $level-1) {
- my $total = @{ $fk_info[$sub_level] };
-
- $level_rels[$sub_level] = [
- splice @{ $fk_info[$sub_level] }, $total-$count, $count
- ];
- }
+ foreach my $constraint (map $_->{definition}, @$constraints) {
+ my ($local_cols, $remote_table, $remote_cols) = $constraint =~
+/^$table FOREIGN KEY \(([^)]+)\) REFERENCES ([^(]+)\(([^)]+)\)/;
- while (1) {
- my @rel = map shift @$_, @level_rels[1..$level];
+ next unless $local_cols;
- last unless defined $rel[0];
+ my @local_cols = split /,\s*/, $local_cols;
+ my @remote_cols = split /,\s*/, $remote_cols;
- my @local_columns = map $_->{fkcolumn_name}, @rel;
- my @remote_columns = map $_->{pkcolumn_name}, @rel;
- my $remote_table = $rel[0]->{pktable_name};
-
- push @rels, {
- local_columns => \@local_columns,
- remote_columns => \@remote_columns,
- remote_table => $remote_table
- };
- }
+ push @rels, {
+ local_columns => \@local_cols,
+ remote_columns => \@remote_cols,
+ remote_table => $remote_table,
+ };
}
return \@rels;