1 package DBIx::Class::Table;
6 use base qw/Class::Data::Inheritable Class::Accessor DBIx::Class::SQL/;
8 __PACKAGE__->mk_classdata('_columns' => {});
10 __PACKAGE__->mk_classdata('_table_name');
13 my ($class, $attrs) = @_;
14 $class = ref $class if ref $class;
15 my $new = bless({ _column_data => { } }, $class);
17 die "attrs must be a hashref" unless ref($attrs) eq 'HASH';
18 while (my ($k, $v) = each %{$attrs}) {
27 return if $self->{_in_database};
28 my $sth = $self->_get_sth('insert', [ keys %{$self->{_column_data}} ],
29 $self->_table_name, undef);
30 $sth->execute(values %{$self->{_column_data}});
31 $self->{_in_database} = 1;
32 $self->{_dirty_columns} = {};
37 my ($class, $attrs) = @_;
38 die "create needs a hashref" unless ref $attrs eq 'HASH';
39 return $class->new($attrs)->insert;
44 die "Not in database" unless $self->{_in_database};
45 my @to_update = keys %{$self->{_dirty_columns} || {}};
46 my $sth = $self->_get_sth('update', \@to_update,
47 $self->_table_name, $self->_ident_cond);
48 $sth->execute( (map { $self->{_column_data}{$_} } @to_update),
49 $self->_ident_values );
50 $self->{_dirty_columns} = {};
56 my $sth = $self->_get_sth('delete', undef,
57 $self->_table_name, $self->_ident_cond);
58 $sth->execute($self->_ident_values);
59 delete $self->{_in_database};
64 my ($self, $column) = @_;
65 die "Can't fetch data as class method" unless ref $self;
66 die "No such column '${column}'" unless $self->_columns->{$column};
67 return $self->{_column_data}{$column};
71 my ($self, $column, $value) = @_;
72 die "No such column '${column}'" unless $self->_columns->{$column};
73 die "set_column called for ${column} without value" if @_ < 3;
74 $self->{_dirty_columns}{$column} = 1;
75 return $self->{_column_data}{$column} = $value;
78 sub _register_columns {
79 my ($class, @cols) = @_;
80 my $names = { %{$class->_columns} };
81 $names->{$_} ||= {} for @cols;
82 $class->_columns($names);
85 sub _mk_column_accessors {
86 my ($class, @cols) = @_;
87 $class->mk_accessors(@cols);
91 my ($class, @cols) = @_;
92 $class->_register_columns(@cols);
93 $class->_mk_column_accessors(@cols);
96 sub retrieve_from_sql {
97 my ($class, $cond, @vals) = @_;
98 $cond =~ s/^\s*WHERE//;
99 my @cols = $class->_select_columns;
100 my $sth = $class->_get_sth( 'select', \@cols, $class->_table_name, $cond);
101 $sth->execute(@vals);
103 while (my @row = $sth->fetchrow_array) {
104 my $new = $class->new;
105 $new->set($_, shift @row) for @cols;
106 $new->{_in_database} = 1;
114 my $where = ref $_[0] eq "HASH" ? shift: {@_};
115 my $cond = join(' AND ', map { "$_ = ?" } keys %$where);
116 return $class->retrieve_from_sql($cond, values %$where);
119 sub _select_columns {
120 return keys %{$_[0]->_columns};
124 my ($self, $changes) = @_;
125 my $new = bless({ _column_data => { %{$self->{_column_data}}} }, ref $self);
126 $new->set($_ => $changes->{$_}) for keys %$changes;