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package Catmandu::Store::DBI::Bag;
use Catmandu::Sane;
use Moo;
use Catmandu::Store::DBI::Iterator;
use namespace::clean;
our $VERSION = "0.05";
my $default_mapping = {
_id => {
column => 'id',
type => 'string',
index => 1,
required => 1,
unique => 1
},
_data => {
column => 'data',
type => 'binary',
serialize => 'all'
}
};
has mapping => (is => 'ro', default => sub { +{%$default_mapping} });
has _iterator => (
is => 'ro',
lazy => 1,
builder => '_build_iterator',
handles => [qw(
generator
count
slice
select
detect
first
)]
);
with 'Catmandu::Bag';
with 'Catmandu::Serializer';
sub BUILD {
my ($self) = @_;
$self->_normalize_mapping;
$self->store->handler->create_table($self);
}
sub _normalize_mapping {
my ($self) = @_;
my $mapping = $self->mapping;
$mapping->{_id} ||= $default_mapping->{_id};
for my $key (keys %$mapping) {
my $map = $mapping->{$key};
$map->{type} ||= 'string';
$map->{column} ||= $key;
}
$mapping;
}
sub _build_iterator {
my ($self) = @_;
Catmandu::Store::DBI::Iterator->new(bag => $self);
}
sub get {
my ($self, $id) = @_;
my $store = $self->store;
my $dbh = $store->dbh;
my $q_name = $dbh->quote_identifier($self->name);
my $q_id_field = $dbh->quote_identifier( $self->mapping->{_id}->{column} );
my $sth = $dbh->prepare_cached("SELECT * FROM ${q_name} WHERE ${q_id_field}=?")
or Catmandu::Error->throw($dbh->errstr);
$sth->execute($id) or Catmandu::Error->throw($sth->errstr);
my $row = $sth->fetchrow_hashref;
$sth->finish;
$self->_row_to_data($row // return);
}
sub add {
my ($self, $data) = @_;
$self->store->handler->add_row($self, $self->_data_to_row($data));
$data;
}
sub delete {
my ($self, $id) = @_;
my $store = $self->store;
my $dbh = $store->dbh;
my $q_name = $dbh->quote_identifier($self->name);
my $q_id_field = $dbh->quote_identifier( $self->mapping->{_id}->{column} );
my $sth = $dbh->prepare_cached("DELETE FROM ${q_name} WHERE ${q_id_field}=?")
or Catmandu::Error->throw($dbh->errstr);
$sth->execute($id) or Catmandu::Error->throw($sth->errstr);
$sth->finish;
}
sub delete_all {
my ($self) = @_;
my $store = $self->store;
my $dbh = $store->dbh;
my $q_name = $dbh->quote_identifier($self->name);
my $sth = $dbh->prepare_cached("DELETE FROM ${q_name}")
or Catmandu::Error->throw($dbh->errstr);
$sth->execute or Catmandu::Error->throw($sth->errstr);
$sth->finish;
}
sub _row_to_data {
my ($self, $row) = @_;
my $mapping = $self->mapping;
my $data = {};
for my $key (keys %$mapping) {
my $map = $mapping->{$key};
my $val = $row->{$map->{column}} // next;
if ($map->{serialize}) {
$val = $self->deserialize($val);
if ($map->{serialize} eq 'all') {
for my $k (keys %$val) {
$data->{$k} = $val->{$k} // next;
}
next;
}
}
$data->{$key} = $val;
}
$data;
}
sub _data_to_row {
my ($self, $data) = @_;
$data = {%$data};
my $mapping = $self->mapping;
my $row = {};
my $serialize_all_column;
for my $key (keys %$mapping) {
my $map = $mapping->{$key};
my $val = delete($data->{$key});
if ($map->{serialize}) {
if ($map->{serialize} eq 'all') {
$serialize_all_column = $map->{column};
next;
}
$val = $self->serialize($val // next);
}
$row->{$map->{column}} = $val // next;
}
if ($serialize_all_column) {
$row->{$serialize_all_column} = $self->serialize($data);
}
$row;
}
1;
|
