use strict;
use warnings;
-use base qw/Class::Data::Inheritable Class::Accessor DBIx::Class::SQL/;
+use DBIx::Class::ResultSet;
+
+use base qw/Class::Data::Inheritable/;
__PACKAGE__->mk_classdata('_columns' => {});
__PACKAGE__->mk_classdata('_table_name');
-sub new {
- my ($class, $attrs) = @_;
- $class = ref $class if ref $class;
- my $new = bless({ _column_data => { } }, $class);
- if ($attrs) {
- die "attrs must be a hashref" unless ref($attrs) eq 'HASH';
- while (my ($k, $v) = each %{$attrs}) {
- $new->set($k => $v);
- }
- }
- $new->{_dirty_columns} = {};
- return $new;
-}
+__PACKAGE__->mk_classdata('table_alias'); # FIXME: Doesn't actually do anything yet!
-sub insert {
- my ($self) = @_;
- return if $self->{_in_database};
- my $sth = $self->_get_sth('insert', [ keys %{$self->{_column_data}} ],
- $self->_table_name, undef);
- $sth->execute(values %{$self->{_column_data}});
- $self->{_in_database} = 1;
- $self->{_dirty_columns} = {};
- return $self;
-}
+__PACKAGE__->mk_classdata('_resultset_class' => 'DBIx::Class::ResultSet');
-sub create {
- my ($class, $attrs) = @_;
- die "create needs a hashref" unless ref $attrs eq 'HASH';
- return $class->new($attrs)->insert;
-}
+sub iterator_class { shift->_resultset_class(@_) }
-sub update {
- my ($self) = @_;
- die "Not in database" unless $self->{_in_database};
- my @to_update = keys %{$self->{_dirty_columns} || {}};
- return -1 unless @to_update;
- my $sth = $self->_get_sth('update', \@to_update,
- $self->_table_name, $self->_ident_cond);
- my $rows = $sth->execute( (map { $self->{_column_data}{$_} } @to_update),
- $self->_ident_values );
- if ($rows == 0) {
- die "Can't update $self: row not found";
- } elsif ($rows > 1) {
- die "Can't update $self: updated more than one row";
- }
- $self->{_dirty_columns} = {};
- return $self;
-}
+=head1 NAME
-sub delete {
- my $self = shift;
- if (ref $self) {
- my $sth = $self->_get_sth('delete', undef,
- $self->_table_name, $self->_ident_cond);
- $sth->execute($self->_ident_values);
- $sth->finish;
- delete $self->{_in_database};
- } else {
- my $query = (ref $_[0] eq 'HASH' ? $_[0] : {@_});
- my ($cond, $param) = $self->_where_from_hash($query);
- my $sth = $self->_get_sth('delete', undef, $self->_table_name, $cond);
- $sth->execute(@$param);
- $sth->finish;
- }
- return $self;
-}
+DBIx::Class::Table - Basic table methods
-sub discard_changes {
- my ($self) = @_;
- $_[0] = $self->retrieve($self->id);
-}
+=head1 SYNOPSIS
-sub get {
- my ($self, $column) = @_;
- die "Can't fetch data as class method" unless ref $self;
- #die "No such column '${column}'" unless $self->_columns->{$column};
- return $self->{_column_data}{$column} if $self->_columns->{$column};
- return shift->SUPER::get(@_);
-}
+=head1 DESCRIPTION
-sub set {
- my ($self, $column, $value) = @_;
- #die "No such column '${column}'" unless $self->_columns->{$column};
- #die "set_column called for ${column} without value" if @_ < 3;
- if ($self->_columns->{$column}) {
- $self->{_dirty_columns}{$column} = 1;
- return $self->{_column_data}{$column} = $value;
- }
- return shift->SUPER::set(@_);
-}
+This class is responsible for defining and doing basic operations on
+L<DBIx::Class> objects.
+
+=head1 METHODS
+
+=over 4
+
+=cut
sub _register_columns {
my ($class, @cols) = @_;
sub _mk_column_accessors {
my ($class, @cols) = @_;
- $class->mk_accessors(@cols);
+ $class->mk_group_accessors('column' => @cols);
}
-sub set_columns {
+=item add_columns
+
+ __PACKAGE__->add_columns(qw/col1 col2 col3/);
+
+Adds columns to the current package, and creates accessors for them
+
+=cut
+
+sub add_columns {
my ($class, @cols) = @_;
$class->_register_columns(@cols);
$class->_mk_column_accessors(@cols);
}
-sub retrieve_from_sql {
+=item search_literal
+
+ my @obj = $class->search_literal($literal_where_cond, @bind);
+ my $cursor = $class->search_literal($literal_where_cond, @bind);
+
+=cut
+
+sub search_literal {
my ($class, $cond, @vals) = @_;
$cond =~ s/^\s*WHERE//i;
- my @cols = $class->_select_columns;
- my $sth = $class->_get_sth( 'select', \@cols, $class->_table_name, $cond);
- $sth->execute(@vals);
- my @found;
- while (my @row = $sth->fetchrow_array) {
- my $new = $class->new;
- $new->set($_, shift @row) for @cols;
- $new->{_in_database} = 1;
- $new->{_dirty_columns} = {};
- push(@found, $new);
- }
- return @found;
+ my $attrs = (ref $vals[$#vals] eq 'HASH' ? { %{ pop(@vals) } } : {});
+ $attrs->{bind} = \@vals;
+ return $class->search(\$cond, $attrs);
+}
+
+=item count_literal
+
+ my $count = $class->count_literal($literal_where_cond);
+
+=cut
+
+sub count_literal {
+ my $class = shift;
+ return $class->search_literal(@_)->count;
+}
+
+=item count
+
+ my $count = $class->count({ foo => 3 });
+
+=cut
+
+sub count {
+ my $class = shift;
+ return $class->search(@_)->count;
}
+=item search
+
+ my @obj = $class->search({ foo => 3 });
+ my $cursor = $class->search({ foo => 3 });
+
+=cut
+
sub search {
- my $class = shift;
- my $where = ref $_[0] eq "HASH" ? shift: {@_};
- my ($cond, $param) = $class->_where_from_hash($where);
- return $class->retrieve_from_sql($cond, @{$param});
+ my $class = shift;
+ #warn "@_";
+ my $attrs = { };
+ if (@_ > 1 && ref $_[$#_] eq 'HASH') {
+ $attrs = { %{ pop(@_) } };
+ }
+ $attrs->{where} = (@_ == 1 || ref $_[0] eq "HASH" ? shift: {@_});
+
+ my $rs = $class->resultset($attrs);
+
+ return (wantarray ? $rs->all : $rs);
+}
+
+sub resultset {
+ my $class = shift;
+
+ my $rs_class = $class->_resultset_class;
+ eval "use $rs_class;";
+ my $rs = $rs_class->new($class, @_);
}
+=item search_like
+
+Identical to search except defaults to 'LIKE' instead of '=' in condition
+
+=cut
+
sub search_like {
my $class = shift;
- my $where = ref $_[0] eq "HASH" ? shift: {@_};
- my ($cond, $param) = $class->_where_from_hash($where, { cmp => 'like' });
- return $class->retrieve_from_sql($cond, @{$param});
+ my $attrs = { };
+ if (@_ > 1 && ref $_[$#_] eq 'HASH') {
+ $attrs = pop(@_);
+ }
+ my $query = ref $_[0] eq "HASH" ? { %{shift()} }: {@_};
+ $query->{$_} = { 'like' => $query->{$_} } for keys %$query;
+ return $class->search($query, { %$attrs });
}
sub _select_columns {
return keys %{$_[0]->_columns};
}
-sub copy {
- my ($self, $changes) = @_;
- my $new = bless({ _column_data => { %{$self->{_column_data}}} }, ref $self);
- $new->set($_ => $changes->{$_}) for keys %$changes;
- return $new->insert;
+=item table
+
+ __PACKAGE__->table('tbl_name');
+
+=cut
+
+sub table {
+ shift->_table_name(@_);
}
-sub _where_from_hash {
- my ($self, $query, $opts) = @_;
- my $op = $opts->{'cmp'} || '=';
- my $cond = join(' AND ',
- map { (defined $query->{$_}
- ? "$_ $op ?"
- : (do { delete $query->{$_}; "$_ IS NULL"; }));
- } keys %$query);
- return ($cond, [ values %$query ]);
+=item find_or_create
+
+ $class->find_or_create({ key => $val, ... });
+
+Searches for a record matching the search condition; if it doesn't find one,
+creates one and returns that instead
+
+=cut
+
+sub find_or_create {
+ my $class = shift;
+ my $hash = ref $_[0] eq "HASH" ? shift: {@_};
+ my ($exists) = $class->search($hash);
+ return defined($exists) ? $exists : $class->create($hash);
}
+sub columns { return keys %{shift->_columns}; }
+
1;
+
+=back
+
+=head1 AUTHORS
+
+Matt S. Trout <mst@shadowcatsystems.co.uk>
+
+=head1 LICENSE
+
+You may distribute this code under the same terms as Perl itself.
+
+=cut
+
projects / dbsrgits/DBIx-Class.git / blobdiff