To add an C<OR>ed condition, use an arrayref of hashrefs. See the
L<SQL::Abstract> documentation for more details.
-In addition to standard result set attributes, the following attributes are also valid:
+In addition to the
+L<standard ResultSet attributes|DBIx::Class::ResultSet/ATTRIBUTES>,
+the following attributes are also valid:
=over 4
should, set this attribute to a true or false value to override the detection
of when to create constraints.
+=item on_delete / on_update
+
+If you are using L<SQL::Translator> to create SQL for you, you can use these
+attributes to explicitly set the desired C<ON DELETE> or C<ON UPDATE> constraint
+type. If not supplied the SQLT parser will attempt to infer the constraint type by
+interrogating the attributes of the B<opposite> relationship. For any 'multi'
+relationship with C<< cascade_delete => 1 >>, the corresponding belongs_to
+relationship will be created with an C<ON DELETE CASCADE> constraint. For any
+relationship bearing C<< cascade_copy => 1 >> the resulting belongs_to constraint
+will be C<ON UPDATE CASCADE>. If you wish to disable this autodetection, and just
+use the RDBMS' default constraint type, pass C<< on_delete => undef >> or
+C<< on_delete => '' >>, and the same for C<on_update> respectively.
+
=item is_deferrable
Tells L<SQL::Translator> that the foreign key constraint it creates should be
until the end of the transaction. Currently, only the PostgreSQL producer
actually supports this.
+=item add_fk_index
+
+Tells L<SQL::Translator> to add an index for this constraint. Can also be
+specified globally in the args to L<DBIx::Class::Schema/deploy> or
+L<DBIx::Class::Schema/create_ddl_dir>. Default is on, set to 0 to disable.
+
=back
=head2 register_relationship
$self->throw_exception("Can't call *_related as class methods")
unless ref $self;
my $rel = shift;
- my $rel_obj = $self->relationship_info($rel);
+ my $rel_info = $self->relationship_info($rel);
$self->throw_exception( "No such relationship ${rel}" )
- unless $rel_obj;
+ unless $rel_info;
return $self->{related_resultsets}{$rel} ||= do {
my $attrs = (@_ > 1 && ref $_[$#_] eq 'HASH' ? pop(@_) : {});
- $attrs = { %{$rel_obj->{attrs} || {}}, %$attrs };
+ $attrs = { %{$rel_info->{attrs} || {}}, %$attrs };
$self->throw_exception( "Invalid query: @_" )
if (@_ > 1 && (@_ % 2 == 1));
my $query = ((@_ > 1) ? {@_} : shift);
- my $cond = $self->result_source->resolve_condition(
- $rel_obj->{cond}, $rel, $self
+ my $source = $self->result_source;
+ my $cond = $source->_resolve_condition(
+ $rel_info->{cond}, $rel, $self
);
+ if ($cond eq $DBIx::Class::ResultSource::UNRESOLVABLE_CONDITION) {
+ my $reverse = $source->reverse_relationship_info($rel);
+ foreach my $rev_rel (keys %$reverse) {
+ if ($reverse->{$rev_rel}{attrs}{accessor} eq 'multi') {
+ $attrs->{related_objects}{$rev_rel} = [ $self ];
+ Scalar::Util::weaken($attrs->{related_object}{$rev_rel}[0]);
+ } else {
+ $attrs->{related_objects}{$rev_rel} = $self;
+ Scalar::Util::weaken($attrs->{related_object}{$rev_rel});
+ }
+ }
+ }
if (ref $cond eq 'ARRAY') {
- $cond = [ map { my $hash;
- foreach my $key (keys %$_) {
- my $newkey = $key =~ /\./ ? "me.$key" : $key;
- $hash->{$newkey} = $_->{$key};
- }; $hash } @$cond ];
- } else {
+ $cond = [ map {
+ if (ref $_ eq 'HASH') {
+ my $hash;
+ foreach my $key (keys %$_) {
+ my $newkey = $key !~ /\./ ? "me.$key" : $key;
+ $hash->{$newkey} = $_->{$key};
+ }
+ $hash;
+ } else {
+ $_;
+ }
+ } @$cond ];
+ } elsif (ref $cond eq 'HASH') {
foreach my $key (grep { ! /\./ } keys %$cond) {
$cond->{"me.$key"} = delete $cond->{$key};
}
sub set_from_related {
my ($self, $rel, $f_obj) = @_;
- my $rel_obj = $self->relationship_info($rel);
- $self->throw_exception( "No such relationship ${rel}" ) unless $rel_obj;
- my $cond = $rel_obj->{cond};
+ my $rel_info = $self->relationship_info($rel);
+ $self->throw_exception( "No such relationship ${rel}" ) unless $rel_info;
+ my $cond = $rel_info->{cond};
$self->throw_exception(
"set_from_related can only handle a hash condition; the ".
"condition for $rel is of type ".
(ref $cond ? ref $cond : 'plain scalar')
) unless ref $cond eq 'HASH';
if (defined $f_obj) {
- my $f_class = $self->result_source->schema->class($rel_obj->{class});
+ my $f_class = $rel_info->{class};
$self->throw_exception( "Object $f_obj isn't a ".$f_class )
unless Scalar::Util::blessed($f_obj) and $f_obj->isa($f_class);
}
$self->set_columns(
- $self->result_source->resolve_condition(
- $rel_obj->{cond}, $f_obj, $rel));
+ $self->result_source->_resolve_condition(
+ $rel_info->{cond}, $f_obj, $rel));
return 1;
}
=over 4
-=item Arguments: (\@hashrefs | \@objs)
+=item Arguments: (\@hashrefs | \@objs), $link_vals?
=back
my $actor = $schema->resultset('Actor')->find(1);
my @roles = $schema->resultset('Role')->search({ role =>
- { '-in' -> ['Fred', 'Barney'] } } );
+ { '-in' => ['Fred', 'Barney'] } } );
$actor->set_roles(\@roles);
# Replaces all of $actor's previous roles with the two named
+ $actor->set_roles(\@roles, { salary => 15_000_000 });
+ # Sets a column in the link table for all roles
+
+
Replace all the related objects with the given reference to a list of
objects. This does a C<delete> B<on the link table resultset> to remove the
association between the current object and all related objects, then calls
projects / dbsrgits/DBIx-Class.git / blobdiff