use warnings;
use base qw/DBIx::Class/;
+use Carp::Clan qw/^DBIx::Class/;
__PACKAGE__->load_components(qw/AccessorGroup/);
=head1 DESCRIPTION
This class is responsible for defining and doing basic operations on rows
-derived from L<DBIx::Class::Table> objects.
+derived from L<DBIx::Class::ResultSource> objects.
=head1 METHODS
$class = ref $class if ref $class;
my $new = bless({ _column_data => { } }, $class);
if ($attrs) {
- $new->throw("attrs must be a hashref" ) unless ref($attrs) eq 'HASH';
+ $new->throw_exception("attrs must be a hashref" ) unless ref($attrs) eq 'HASH';
while (my ($k, $v) = each %{$attrs}) {
- die "No such column $k on $class" unless $class->has_column($k);
+ $new->throw_exception("No such column $k on $class") unless $class->has_column($k);
$new->store_column($k => $v);
}
}
$self->{result_source} ||= $self->result_source_instance
if $self->can('result_source_instance');
my $source = $self->{result_source};
- die "No result_source set on this object; can't insert" unless $source;
+ $self->throw_exception("No result_source set on this object; can't insert") unless $source;
#use Data::Dumper; warn Dumper($self);
$source->storage->insert($source->from, { $self->get_columns });
$self->in_storage(1);
sub update {
my ($self, $upd) = @_;
- $self->throw( "Not in database" ) unless $self->in_storage;
+ $self->throw_exception( "Not in database" ) unless $self->in_storage;
+ $self->set_columns($upd) if $upd;
my %to_update = $self->get_dirty_columns;
return $self unless keys %to_update;
+ my $ident_cond = $self->ident_condition;
+ $self->throw_exception("Cannot safely update a row in a PK-less table")
+ if ! keys %$ident_cond;
my $rows = $self->result_source->storage->update(
- $self->result_source->from, \%to_update, $self->ident_condition);
+ $self->result_source->from, \%to_update, $ident_cond);
if ($rows == 0) {
- $self->throw( "Can't update ${self}: row not found" );
+ $self->throw_exception( "Can't update ${self}: row not found" );
} elsif ($rows > 1) {
- $self->throw("Can't update ${self}: updated more than one row");
+ $self->throw_exception("Can't update ${self}: updated more than one row");
}
$self->{_dirty_columns} = {};
return $self;
sub delete {
my $self = shift;
if (ref $self) {
- $self->throw( "Not in database" ) unless $self->in_storage;
+ $self->throw_exception( "Not in database" ) unless $self->in_storage;
+ my $ident_cond = $self->ident_condition;
+ $self->throw_exception("Cannot safely delete a row in a PK-less table")
+ if ! keys %$ident_cond;
$self->result_source->storage->delete(
- $self->result_source->from, $self->ident_condition);
+ $self->result_source->from, $ident_cond);
$self->in_storage(undef);
} else {
- die "Can't do class delete without a ResultSource instance"
+ $self->throw_exception("Can't do class delete without a ResultSource instance")
unless $self->can('result_source_instance');
my $attrs = { };
if (@_ > 1 && ref $_[$#_] eq 'HASH') {
sub get_column {
my ($self, $column) = @_;
- $self->throw( "Can't fetch data as class method" ) unless ref $self;
+ $self->throw_exception( "Can't fetch data as class method" ) unless ref $self;
return $self->{_column_data}{$column}
if exists $self->{_column_data}{$column};
- $self->throw( "No such column '${column}'" ) unless $self->has_column($column);
+ $self->throw_exception( "No such column '${column}'" ) unless $self->has_column($column);
return undef;
}
sub store_column {
my ($self, $column, $value) = @_;
- $self->throw( "No such column '${column}'" )
+ $self->throw_exception( "No such column '${column}'" )
unless exists $self->{_column_data}{$column} || $self->has_column($column);
- $self->throw( "set_column called for ${column} without value" )
+ $self->throw_exception( "set_column called for ${column} without value" )
if @_ < 3;
return $self->{_column_data}{$column} = $value;
}
my $schema;
PRE: foreach my $pre (keys %{$prefetch||{}}) {
my $pre_source = $source->related_source($pre);
- die "Can't prefetch non-existant relationship ${pre}" unless $pre_source;
- my $fetched = $pre_source->result_class->inflate_result(
- $pre_source, @{$prefetch->{$pre}});
+ $class->throw_exception("Can't prefetch non-existant relationship ${pre}") unless $pre_source;
+ my $fetched;
+ unless ($pre_source->primary_columns == grep { exists $prefetch->{$pre}[0]{$_}
+ and !defined $prefetch->{$pre}[0]{$_} } $pre_source->primary_columns)
+ {
+ $fetched = $pre_source->result_class->inflate_result(
+ $pre_source, @{$prefetch->{$pre}});
+ }
my $accessor = $source->relationship_info($pre)->{attrs}{accessor};
- $class->throw("No accessor for prefetched $pre")
+ $class->throw_exception("No accessor for prefetched $pre")
unless defined $accessor;
- PRIMARY: foreach my $pri ($pre_source->primary_columns) {
- unless (defined $fetched->get_column($pri)) {
- undef $fetched;
- last PRIMARY;
- }
- }
if ($accessor eq 'single') {
$new->{_relationship_data}{$pre} = $fetched;
} elsif ($accessor eq 'filter') {
$new->{_inflated_column}{$pre} = $fetched;
} else {
- $class->throw("Don't know how to store prefetched $pre");
+ $class->throw_exception("Don't know how to store prefetched $pre");
}
}
return $new;
=head2 register_column($column, $column_info)
- Registers a column on the class and creates an accessor for it
+ Registers a column on the class. If the column_info has an 'accessor' key,
+ creates an accessor named after the value if defined; if there is no such
+ key, creates an accessor with the same name as the column
=cut
sub register_column {
my ($class, $col, $info) = @_;
- $class->mk_group_accessors('column' => $col);
+ my $acc = $col;
+ if (exists $info->{accessor}) {
+ return unless defined $info->{accessor};
+ $acc = [ $info->{accessor}, $col ];
+ }
+ $class->mk_group_accessors('column' => $acc);
+}
+
+
+=head2 throw_exception
+
+See Schema's throw_exception.
+
+=cut
+
+sub throw_exception {
+ my $self=shift;
+ if (ref $self && ref $self->result_source) {
+ $self->result_source->schema->throw_exception(@_);
+ } else {
+ croak(@_);
+ }
}
1;
projects / dbsrgits/DBIx-Class.git / blobdiff