X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?a=blobdiff_plain;f=lib%2FDBIx%2FClass%2FResultSet.pm;h=8987de1bb1612aa1c1c1a00f261f6d031acfa9a3;hb=353b0c3d4fafcab32177f034fc4a0767c82e7976;hp=52cdcbd9e9aaa0afa94b465a2752734f9a62d910;hpb=07bff4949ec5002e162743aa8b183e3092295050;p=dbsrgits%2FDBIx-Class-Historic.git diff --git a/lib/DBIx/Class/ResultSet.pm b/lib/DBIx/Class/ResultSet.pm index 52cdcbd..8987de1 100644 --- a/lib/DBIx/Class/ResultSet.pm +++ b/lib/DBIx/Class/ResultSet.pm @@ -545,7 +545,7 @@ sub single { $attrs->{where}, $attrs ); - return (@data ? ($self->_construct_object(@data))[0] : ()); + return (@data ? ($self->_construct_object(@data))[0] : undef); } # _is_unique_query @@ -740,7 +740,7 @@ sub next { ? @{delete $self->{stashed_row}} : $self->cursor->next ); - return unless (@row); + return undef unless (@row); my ($row, @more) = $self->_construct_object(@row); $self->{stashed_objects} = \@more if @more; return $row; @@ -1244,7 +1244,7 @@ sub delete_all { =over 4 -=item Arguments: $source_name, \@data; +=item Arguments: \@data; =back @@ -1252,32 +1252,45 @@ Pass an arrayref of hashrefs. Each hashref should be a structure suitable for submitting to a $resultset->create(...) method. In void context, C in L is used -to insert the data, as this is a fast method. +to insert the data, as this is a faster method. Otherwise, each set of data is inserted into the database using L, and a arrayref of the resulting row objects is returned. -i.e., +Example: Assuming an Artist Class that has many CDs Classes relating: - $rs->populate( [ - { artistid => 4, name => 'Manufactured Crap', cds => [ - { title => 'My First CD', year => 2006 }, - { title => 'Yet More Tweeny-Pop crap', year => 2007 }, - ] - }, - { artistid => 5, name => 'Angsty-Whiny Girl', cds => [ - { title => 'My parents sold me to a record company' ,year => 2005 }, - { title => 'Why Am I So Ugly?', year => 2006 }, - { title => 'I Got Surgery and am now Popular', year => 2007 } - ] - }, - { name => 'Like I Give a Damn' } - - ] ); + my $Artist_rs = $schema->resultset("Artist"); + + ## Void Context Example + $Artist_rs->populate([ + { artistid => 4, name => 'Manufactured Crap', cds => [ + { title => 'My First CD', year => 2006 }, + { title => 'Yet More Tweeny-Pop crap', year => 2007 }, + ], + }, + { artistid => 5, name => 'Angsty-Whiny Girl', cds => [ + { title => 'My parents sold me to a record company' ,year => 2005 }, + { title => 'Why Am I So Ugly?', year => 2006 }, + { title => 'I Got Surgery and am now Popular', year => 2007 } + ], + }, + ]); + + ## Array Context Example + my ($ArtistOne, $ArtistTwo, $ArtistThree) = $Artist_rs->populate([ + { name => "Artist One"}, + { name => "Artist Two"}, + { name => "Artist Three", cds=> [ + { title => "First CD", year => 2007}, + { title => "Second CD", year => 2008}, + ]} + ]); + + print $ArtistOne->name; ## response is 'Artist One' + print $ArtistThree->cds->count ## reponse is '2' =cut -use Data::Dump qw/dump/; sub populate { my ($self, $data) = @_; @@ -1288,57 +1301,73 @@ sub populate { push(@created, $self->create($item)); } return @created; - } - else - { + } else { my ($first, @rest) = @$data; - - ## We assume for now that the first item is required to name all the columns - ## and relationships similarly to how schema->populate requires a first item - ## of all the column names. - - my @names = grep { !ref $first->{$_} } keys %$first; - my @values = map { [ map {defined $_ ? $_ : $self->throw_exception("Undefined value for column!")} @$_{@names} ] } @$data; - + + my @names = grep {!ref $first->{$_}} keys %$first; + my @rels = grep { $self->result_source->has_relationship($_) } keys %$first; + my @pks = $self->result_source->primary_columns; + + ## do the belongs_to relationships + foreach my $index (0..$#{@$data}) { + if( grep { !defined $data->[$index]->{$_} } @pks ) { + my @ret = $self->populate($data); + return; + } + + foreach my $rel (@rels) { + next unless $data->[$index]->{$rel} && ref $data->[$index]->{$rel} eq "HASH"; + my $result = $self->related_resultset($rel)->create($data->[$index]->{$rel}); + my ($reverse) = keys %{$self->result_source->reverse_relationship_info($rel)}; + my $related = $result->result_source->resolve_condition( + $result->result_source->relationship_info($reverse)->{cond}, + $self, + $result, + ); + + delete $data->[$index]->{$rel}; + $data->[$index] = {%{$data->[$index]}, %$related}; + + push @names, keys %$related if $index == 0; + } + } + + ## do bulk insert on current row + my @values = map { + [ map { + defined $_ ? $_ : $self->throw_exception("Undefined value for column!") + } @$_{@names} ] + } @$data; + $self->result_source->storage->insert_bulk( - $self->result_source, - \@names, - \@values, - ); - - ## Again we assume the first row has to define all the related resultsets - my @rels = grep { $self->result_source->has_relationship($_) } keys %$first; - my @pks = $self->result_source->primary_columns; - - ## Must have PKs to use this!!! - - foreach my $item (@$data) - { - ## First we need to get a result for each - ## We need to call populate for each relationship. - - foreach my $rel (@rels) - { - next unless $item->{$rel}; - my $parent = $self->find(map {{$_=>$item->{$_}} } @pks) - || next; - - my $child = $parent->$rel; - - my $related = $child->result_source->resolve_condition( - - $parent->result_source->relationship_info($rel)->{cond}, - $child, - $parent, - - ); - - my $populate = [map { {%$_, %$related} } @{$item->{$rel}}]; - - $child->populate( $populate ); - } - } - + $self->result_source, + \@names, + \@values, + ); + + ## do the has_many relationships + foreach my $item (@$data) { + + foreach my $rel (@rels) { + next unless $item->{$rel} && ref $item->{$rel} eq "ARRAY"; + + my $parent = $self->find(map {{$_=>$item->{$_}} } @pks) + || $self->throw_exception('Cannot find the relating object.'); + + my $child = $parent->$rel; + + my $related = $child->result_source->resolve_condition( + $parent->result_source->relationship_info($rel)->{cond}, + $child, + $parent, + ); + + my @rows_to_add = ref $item->{$rel} eq 'ARRAY' ? @{$item->{$rel}} : ($item->{$rel}); + my @populate = map { {%$_, %$related} } @rows_to_add; + + $child->populate( \@populate ); + } + } } } @@ -1415,7 +1444,8 @@ sub new_result { my %new = ( %{ $self->_remove_alias($values, $alias) }, %{ $self->_remove_alias($collapsed_cond, $alias) }, - -source_handle => $self->_source_handle + -source_handle => $self->_source_handle, + -result_source => $self->result_source, # DO NOT REMOVE THIS, REQUIRED ); return $self->result_class->new(\%new); @@ -1721,18 +1751,36 @@ sub related_resultset { my $join_count = $seen->{$rel}; my $alias = ($join_count > 1 ? join('_', $rel, $join_count) : $rel); - $self->_source_handle->schema->resultset($rel_obj->{class})->search_rs( - undef, { - %{$self->{attrs}||{}}, - join => undef, - prefetch => undef, - select => undef, - as => undef, - alias => $alias, - where => $self->{cond}, - seen_join => $seen, - from => $from, - }); + #XXX - temp fix for result_class bug. There likely is a more elegant fix -groditi + my %attrs = %{$self->{attrs}||{}}; + delete $attrs{result_class}; + + my $new_cache; + + if (my $cache = $self->get_cache) { + if ($cache->[0] && $cache->[0]->related_resultset($rel)->get_cache) { + $new_cache = [ map { @{$_->related_resultset($rel)->get_cache} } + @$cache ]; + } + } + + my $new = $self->_source_handle + ->schema + ->resultset($rel_obj->{class}) + ->search_rs( + undef, { + %attrs, + join => undef, + prefetch => undef, + select => undef, + as => undef, + alias => $alias, + where => $self->{cond}, + seen_join => $seen, + from => $from, + }); + $new->set_cache($new_cache) if $new_cache; + $new; }; }