my $error = $self->check;
return $error if $error;
- #single-field unique keys are given a value if false
+ #single-field non-null unique keys are given a value if empty
#(like MySQL's AUTO_INCREMENT or Pg SERIAL)
foreach ( $self->dbdef_table->unique_singles) {
- $self->unique($_) unless $self->getfield($_);
+ next if $self->getfield($_);
+ next if $self->dbdef_table->column($_)->null eq 'NULL';
+ $self->unique($_);
}
#and also the primary key, if the database isn't going to