=cut
-# override this in a subclass if your DBD ->can('column_info'),
-# but the call itself is horribly broken.
-sub _column_info_broken { 0 }
-
sub columns_info_for {
my ($self, $table) = @_;
- my %result;
- if ( $self->dbh->can( 'column_info' ) && !$self->_column_info_broken){
- my $sth = $self->dbh->column_info( undef, undef, $table, '%' );
- $sth->execute();
- while ( my $info = $sth->fetchrow_hashref() ){
- my %column_info;
- $column_info{data_type} = $info->{TYPE_NAME};
- $column_info{size} = $info->{COLUMN_SIZE};
- $column_info{is_nullable} = $info->{NULLABLE} ? 1 : 0;
- $column_info{default_value} = $info->{COLUMN_DEF};
- $result{$info->{COLUMN_NAME}} = \%column_info;
- }
- } else {
- my $sth = $self->dbh->prepare("SELECT * FROM $table WHERE 1=0");
- $sth->execute;
- my @columns = @{$sth->{NAME_lc}};
- for my $i ( 0 .. $#columns ){
- my %column_info;
- my $type_num = $sth->{TYPE}->[$i];
- my $type_name;
- if(defined $type_num && $self->dbh->can('type_info')) {
- my $type_info = $self->dbh->type_info($type_num);
- $type_name = $type_info->{TYPE_NAME} if $type_info;
+ if ($self->dbh->can('column_info')) {
+ my %result;
+ my $old_raise_err = $self->dbh->{RaiseError};
+ $self->dbh->{RaiseError} = 1;
+ eval {
+ my $sth = $self->dbh->column_info( undef, undef, $table, '%' );
+ $sth->execute();
+ while ( my $info = $sth->fetchrow_hashref() ){
+ my %column_info;
+ $column_info{data_type} = $info->{TYPE_NAME};
+ $column_info{size} = $info->{COLUMN_SIZE};
+ $column_info{is_nullable} = $info->{NULLABLE} ? 1 : 0;
+ $column_info{default_value} = $info->{COLUMN_DEF};
+ $result{$info->{COLUMN_NAME}} = \%column_info;
}
- $column_info{data_type} = $type_name ? $type_name : $type_num;
- $column_info{size} = $sth->{PRECISION}->[$i];
- $column_info{is_nullable} = $sth->{NULLABLE}->[$i] ? 1 : 0;
- $result{$columns[$i]} = \%column_info;
+ };
+ $self->dbh->{RaiseError} = $old_raise_err;
+ return \%result if !$@;
+ }
+
+ my %result;
+ my $sth = $self->dbh->prepare("SELECT * FROM $table WHERE 1=0");
+ $sth->execute;
+ my @columns = @{$sth->{NAME_lc}};
+ for my $i ( 0 .. $#columns ){
+ my %column_info;
+ my $type_num = $sth->{TYPE}->[$i];
+ my $type_name;
+ if(defined $type_num && $self->dbh->can('type_info')) {
+ my $type_info = $self->dbh->type_info($type_num);
+ $type_name = $type_info->{TYPE_NAME} if $type_info;
}
+ $column_info{data_type} = $type_name ? $type_name : $type_num;
+ $column_info{size} = $sth->{PRECISION}->[$i];
+ $column_info{is_nullable} = $sth->{NULLABLE}->[$i] ? 1 : 0;
+ $result{$columns[$i]} = \%column_info;
}
+
return \%result;
}