use Carp::Clan qw/^DBIx::Class/;
use Lingua::EN::Inflect::Number ();
-our $VERSION = '0.04003';
+our $VERSION = '0.04999_08';
=head1 NAME
return Lingua::EN::Inflect::Number::to_S($relname);
}
+sub _array_eq {
+ my ($a, $b) = @_;
+
+ return unless @$a == @$b;
+
+ for (my $i = 0; $i < @$a; $i++) {
+ return unless $a->[$i] eq $b->[$i];
+ }
+ return 1;
+}
+
+sub _uniq_fk_rel {
+ my ($self, $local_moniker, $local_relname, $local_cols, $uniqs) = @_;
+
+ my $remote_method = 'has_many';
+
+ # If the local columns have a UNIQUE constraint, this is a one-to-one rel
+ my $local_source = $self->{schema}->source($local_moniker);
+ if (_array_eq([ $local_source->primary_columns ], $local_cols) ||
+ grep { _array_eq($_->[1], $local_cols) } @$uniqs) {
+ $remote_method = 'might_have';
+ $local_relname = $self->_inflect_singular($local_relname);
+ }
+
+ return ($remote_method, $local_relname);
+}
+
+sub _remote_attrs {
+ my ($self, $local_moniker, $local_cols) = @_;
+
+ # If the referring column is nullable, make 'belongs_to' an outer join:
+ my $nullable = grep { $self->{schema}->source($local_moniker)->column_info($_)->{is_nullable} }
+ @$local_cols;
+
+ return $nullable ? { join_type => 'LEFT' } : ();
+}
+
+sub _remote_relname {
+ my ($self, $remote_table, $cond) = @_;
+
+ my $remote_relname;
+ # for single-column case, set the remote relname to the column
+ # name, to make filter accessors work, but strip trailing _id
+ if(scalar keys %{$cond} == 1) {
+ my ($col) = values %{$cond};
+ $col =~ s/_id$//;
+ $remote_relname = $self->_inflect_singular($col);
+ }
+ else {
+ $remote_relname = $self->_inflect_singular(lc $remote_table);
+ }
+
+ return $remote_relname;
+}
+
sub generate_code {
- my ($self, $local_moniker, $rels) = @_;
+ my ($self, $local_moniker, $rels, $uniqs) = @_;
my $all_code = {};
}
my $local_relname;
- my $remote_relname;
-
- # for single-column case, set the remote relname to the column
- # name, to make filter accessors work
- if(scalar keys %cond == 1) {
- my ($col) = keys %cond;
- $remote_relname = $self->_inflect_singular($cond{$col});
- }
- else {
- $remote_relname = $self->_inflect_singular(lc $remote_table);
- }
+ my $remote_relname = $self->_remote_relname($remote_table, \%cond);
# If more than one rel between this pair of tables, use the local
# col names to distinguish
delete $rev_cond{$_};
}
+ my ($remote_method);
+
+ ($remote_method, $local_relname) = $self->_uniq_fk_rel($local_moniker, $local_relname, $local_cols, $uniqs);
+
push(@{$all_code->{$local_class}},
{ method => 'belongs_to',
args => [ $remote_relname,
$remote_class,
\%cond,
+ $self->_remote_attrs($local_moniker, $local_cols),
],
}
);
push(@{$all_code->{$remote_class}},
- { method => 'has_many',
+ { method => $remote_method,
args => [ $local_relname,
$local_class,
\%rev_cond,