BEGIN {
eval "use DBM::Deep 1.0003;";
- plan skip_all => "DBM::Deep is required for this test" if $@;
+ plan skip_all => "DBM::Deep 1.0003 (or greater) is required for this test" if $@;
eval "use DateTime::Format::MySQL;";
- plan skip_all => "DateTime::Format::MySQL is required for this test" if $@;
- plan tests => 89;
+ plan skip_all => "DateTime::Format::MySQL is required for this test" if $@;
+ plan tests => 88;
}
use Test::Exception;
BEGIN {
- use_ok('Moose');
+ # in case there are leftovers
+ unlink('newswriter.db') if -e 'newswriter.db';
}
+END {
+ unlink('newswriter.db') if -e 'newswriter.db';
+}
+
+
+
=pod
-This example creates a very basic Object Database which
-links in the instances created with a backend store
+This example creates a very basic Object Database which
+links in the instances created with a backend store
(a DBM::Deep hash). It is by no means to be taken seriously
-as a real-world ODB (see Presto for that), but is a proof
-of concept of the flexibility of the ::Instance protocol.
+as a real-world ODB, but is a proof of concept of the flexibility
+of the ::Instance protocol.
=cut
BEGIN {
-
+
package Moose::POOP::Meta::Instance;
use Moose;
-
+
use DBM::Deep;
-
+
extends 'Moose::Meta::Instance';
-
+
{
my %INSTANCE_COUNTERS;
autobless => 1,
locking => 1,
});
-
+
sub _reload_db {
#use Data::Dumper;
- #warn Dumper $db;
+ #warn Dumper $db;
$db = undef;
$db = DBM::Deep->new({
file => "newswriter.db",
autobless => 1,
locking => 1,
- });
+ });
}
-
+
sub create_instance {
my $self = shift;
my $class = $self->associated_metaclass->name;
my $oid = ++$INSTANCE_COUNTERS{$class};
-
+
$db->{$class}->[($oid - 1)] = {};
-
- $self->bless_instance_structure({
+
+ bless {
oid => $oid,
instance => $db->{$class}->[($oid - 1)]
- });
+ }, $class;
}
-
+
sub find_instance {
my ($self, $oid) = @_;
- my $instance = $db->{$self->associated_metaclass->name}->[($oid - 1)];
- $self->bless_instance_structure({
+ my $instance = $db->{$self->associated_metaclass->name}->[($oid - 1)];
+
+ bless {
oid => $oid,
- instance => $instance
- });
- }
-
+ instance => $instance,
+ }, $self->associated_metaclass->name;
+ }
+
sub clone_instance {
my ($self, $instance) = @_;
-
+
my $class = $self->{meta}->name;
my $oid = ++$INSTANCE_COUNTERS{$class};
-
+
my $clone = tied($instance)->clone;
-
- $self->bless_instance_structure({
+
+ bless {
oid => $oid,
- instance => $clone
- });
- }
+ instance => $clone,
+ }, $class;
+ }
}
-
+
sub get_instance_oid {
my ($self, $instance) = @_;
$instance->{oid};
sub weaken_slot_value {
confess "Not sure how well DBM::Deep plays with weak refs, Rob says 'Write a test'";
- }
-
+ }
+
sub inline_slot_access {
my ($self, $instance, $slot_name) = @_;
sprintf "%s->{instance}->{%s}", $instance, $slot_name;
}
-
+
package Moose::POOP::Meta::Class;
- use Moose;
-
- extends 'Moose::Meta::Class';
-
- override 'construct_instance' => sub {
- my ($class, %params) = @_;
- return $class->get_meta_instance->find_instance($params{oid})
- if $params{oid};
+ use Moose;
+
+ extends 'Moose::Meta::Class';
+
+ override '_construct_instance' => sub {
+ my $class = shift;
+ my $params = @_ == 1 ? $_[0] : {@_};
+ return $class->get_meta_instance->find_instance($params->{oid})
+ if $params->{oid};
super();
};
}
-{
+{
package Moose::POOP::Object;
use metaclass 'Moose::POOP::Meta::Class' => (
instance_metaclass => 'Moose::POOP::Meta::Instance'
- );
+ );
use Moose;
-
+
sub oid {
my $self = shift;
$self->meta
}
}
-{
+{
package Newswriter::Author;
use Moose;
-
+
extends 'Moose::POOP::Object';
-
+
has 'first_name' => (is => 'rw', isa => 'Str');
- has 'last_name' => (is => 'rw', isa => 'Str');
-
- package Newswriter::Article;
+ has 'last_name' => (is => 'rw', isa => 'Str');
+
+ package Newswriter::Article;
use Moose;
- use Moose::Util::TypeConstraints;
-
+ use Moose::Util::TypeConstraints;
+
use DateTime::Format::MySQL;
-
- extends 'Moose::POOP::Object';
+
+ extends 'Moose::POOP::Object';
subtype 'Headline'
=> as 'Str'
=> where { length($_) < 100 };
-
+
subtype 'Summary'
=> as 'Str'
=> where { length($_) < 255 };
-
+
subtype 'DateTimeFormatString'
=> as 'Str'
=> where { DateTime::Format::MySQL->parse_datetime($_) };
-
+
enum 'Status' => qw(draft posted pending archive);
-
+
has 'headline' => (is => 'rw', isa => 'Headline');
- has 'summary' => (is => 'rw', isa => 'Summary');
- has 'article' => (is => 'rw', isa => 'Str');
-
+ has 'summary' => (is => 'rw', isa => 'Summary');
+ has 'article' => (is => 'rw', isa => 'Str');
+
has 'start_date' => (is => 'rw', isa => 'DateTimeFormatString');
- has 'end_date' => (is => 'rw', isa => 'DateTimeFormatString');
-
- has 'author' => (is => 'rw', isa => 'Newswriter::Author');
-
+ has 'end_date' => (is => 'rw', isa => 'DateTimeFormatString');
+
+ has 'author' => (is => 'rw', isa => 'Newswriter::Author');
+
has 'status' => (is => 'rw', isa => 'Status');
-
+
around 'start_date', 'end_date' => sub {
my $c = shift;
my $self = shift;
- $c->($self, DateTime::Format::MySQL->format_datetime($_[0])) if @_;
+ $c->($self, DateTime::Format::MySQL->format_datetime($_[0])) if @_;
DateTime::Format::MySQL->parse_datetime($c->($self) || return undef);
- };
+ };
}
{ # check the meta stuff first
isa_ok(Moose::POOP::Object->meta, 'Moose::POOP::Meta::Class');
- isa_ok(Moose::POOP::Object->meta, 'Moose::Meta::Class');
- isa_ok(Moose::POOP::Object->meta, 'Class::MOP::Class');
-
- is(Moose::POOP::Object->meta->instance_metaclass,
- 'Moose::POOP::Meta::Instance',
+ isa_ok(Moose::POOP::Object->meta, 'Moose::Meta::Class');
+ isa_ok(Moose::POOP::Object->meta, 'Class::MOP::Class');
+
+ is(Moose::POOP::Object->meta->instance_metaclass,
+ 'Moose::POOP::Meta::Instance',
'... got the right instance metaclass name');
-
- isa_ok(Moose::POOP::Object->meta->get_meta_instance, 'Moose::POOP::Meta::Instance');
-
+
+ isa_ok(Moose::POOP::Object->meta->get_meta_instance, 'Moose::POOP::Meta::Instance');
+
my $base = Moose::POOP::Object->new;
- isa_ok($base, 'Moose::POOP::Object');
- isa_ok($base, 'Moose::Object');
-
+ isa_ok($base, 'Moose::POOP::Object');
+ isa_ok($base, 'Moose::Object');
+
isa_ok($base->meta, 'Moose::POOP::Meta::Class');
- isa_ok($base->meta, 'Moose::Meta::Class');
- isa_ok($base->meta, 'Class::MOP::Class');
-
- is($base->meta->instance_metaclass,
- 'Moose::POOP::Meta::Instance',
+ isa_ok($base->meta, 'Moose::Meta::Class');
+ isa_ok($base->meta, 'Class::MOP::Class');
+
+ is($base->meta->instance_metaclass,
+ 'Moose::POOP::Meta::Instance',
'... got the right instance metaclass name');
-
- isa_ok($base->meta->get_meta_instance, 'Moose::POOP::Meta::Instance');
+
+ isa_ok($base->meta->get_meta_instance, 'Moose::POOP::Meta::Instance');
}
my $article_oid;
headline => 'Home Office Redecorated',
summary => 'The home office was recently redecorated to match the new company colors',
article => '...',
-
+
author => Newswriter::Author->new(
first_name => 'Truman',
last_name => 'Capote'
),
-
+
status => 'pending'
);
} '... created my article successfully';
isa_ok($article, 'Newswriter::Article');
- isa_ok($article, 'Moose::POOP::Object');
-
+ isa_ok($article, 'Moose::POOP::Object');
+
lives_ok {
$article->start_date(DateTime->new(year => 2006, month => 6, day => 10));
$article->end_date(DateTime->new(year => 2006, month => 6, day => 17));
} '... add the article date-time stuff';
-
+
## check some meta stuff
-
+
isa_ok($article->meta, 'Moose::POOP::Meta::Class');
- isa_ok($article->meta, 'Moose::Meta::Class');
- isa_ok($article->meta, 'Class::MOP::Class');
-
- is($article->meta->instance_metaclass,
- 'Moose::POOP::Meta::Instance',
+ isa_ok($article->meta, 'Moose::Meta::Class');
+ isa_ok($article->meta, 'Class::MOP::Class');
+
+ is($article->meta->instance_metaclass,
+ 'Moose::POOP::Meta::Instance',
'... got the right instance metaclass name');
-
- isa_ok($article->meta->get_meta_instance, 'Moose::POOP::Meta::Instance');
-
+
+ isa_ok($article->meta->get_meta_instance, 'Moose::POOP::Meta::Instance');
+
ok($article->oid, '... got a oid for the article');
$article_oid = $article->oid;
is($article->summary,
'The home office was recently redecorated to match the new company colors',
'... got the right summary');
- is($article->article, '...', '... got the right article');
-
+ is($article->article, '...', '... got the right article');
+
isa_ok($article->start_date, 'DateTime');
isa_ok($article->end_date, 'DateTime');
headline => 'Company wins Lottery',
summary => 'An email was received today that informed the company we have won the lottery',
article => 'WoW',
-
+
author => Newswriter::Author->new(
first_name => 'Katie',
last_name => 'Couric'
),
-
+
status => 'posted'
);
} '... created my article successfully';
isa_ok($article2, 'Newswriter::Article');
isa_ok($article2, 'Moose::POOP::Object');
-
+
$article2_oid = $article2->oid;
$article2_ref = "$article2";
-
+
is($article2->headline,
'Company wins Lottery',
'... got the right headline');
is($article2->summary,
'An email was received today that informed the company we have won the lottery',
'... got the right summary');
- is($article2->article, 'WoW', '... got the right article');
-
+ is($article2->article, 'WoW', '... got the right article');
+
ok(!$article2->start_date, '... these two dates are unassigned');
ok(!$article2->end_date, '... these two dates are unassigned');
is($article2->author->last_name, 'Couric', '... got the right author last name');
is($article2->status, 'posted', '... got the right status');
-
+
## orig-article
-
+
my $article;
lives_ok {
$article = Newswriter::Article->new(oid => $article_oid);
} '... (re)-created my article successfully';
isa_ok($article, 'Newswriter::Article');
- isa_ok($article, 'Moose::POOP::Object');
-
+ isa_ok($article, 'Moose::POOP::Object');
+
is($article->oid, $article_oid, '... got a oid for the article');
- isnt($article_ref, "$article", '... got a new article instance');
+ isnt($article_ref, "$article", '... got a new article instance');
is($article->headline,
'Home Office Redecorated',
is($article->summary,
'The home office was recently redecorated to match the new company colors',
'... got the right summary');
- is($article->article, '...', '... got the right article');
-
+ is($article->article, '...', '... got the right article');
+
isa_ok($article->start_date, 'DateTime');
isa_ok($article->end_date, 'DateTime');
isa_ok($article->author, 'Newswriter::Author');
is($article->author->first_name, 'Truman', '... got the right author first name');
is($article->author->last_name, 'Capote', '... got the right author last name');
-
+
lives_ok {
$article->author->first_name('Dan');
- $article->author->last_name('Rather');
+ $article->author->last_name('Rather');
} '... changed the value ok';
-
+
is($article->author->first_name, 'Dan', '... got the changed author first name');
- is($article->author->last_name, 'Rather', '... got the changed author last name');
+ is($article->author->last_name, 'Rather', '... got the changed author last name');
is($article->status, 'pending', '... got the right status');
}
$article = Newswriter::Article->new(oid => $article_oid);
} '... (re)-created my article successfully';
isa_ok($article, 'Newswriter::Article');
- isa_ok($article, 'Moose::POOP::Object');
-
+ isa_ok($article, 'Moose::POOP::Object');
+
is($article->oid, $article_oid, '... got a oid for the article');
- isnt($article_ref, "$article", '... got a new article instance');
+ isnt($article_ref, "$article", '... got a new article instance');
is($article->headline,
'Home Office Redecorated',
is($article->summary,
'The home office was recently redecorated to match the new company colors',
'... got the right summary');
- is($article->article, '...', '... got the right article');
-
+ is($article->article, '...', '... got the right article');
+
isa_ok($article->start_date, 'DateTime');
isa_ok($article->end_date, 'DateTime');
isa_ok($article->author, 'Newswriter::Author');
is($article->author->first_name, 'Dan', '... got the changed author first name');
- is($article->author->last_name, 'Rather', '... got the changed author last name');
+ is($article->author->last_name, 'Rather', '... got the changed author last name');
is($article->status, 'pending', '... got the right status');
-
+
my $article2;
lives_ok {
$article2 = Newswriter::Article->new(oid => $article2_oid);
} '... (re)-created my article successfully';
isa_ok($article2, 'Newswriter::Article');
- isa_ok($article2, 'Moose::POOP::Object');
-
+ isa_ok($article2, 'Moose::POOP::Object');
+
is($article2->oid, $article2_oid, '... got a oid for the article');
- isnt($article2_ref, "$article2", '... got a new article instance');
+ isnt($article2_ref, "$article2", '... got a new article instance');
is($article2->headline,
'Company wins Lottery',
is($article2->summary,
'An email was received today that informed the company we have won the lottery',
'... got the right summary');
- is($article2->article, 'WoW', '... got the right article');
-
+ is($article2->article, 'WoW', '... got the right article');
+
ok(!$article2->start_date, '... these two dates are unassigned');
ok(!$article2->end_date, '... these two dates are unassigned');
is($article2->author->first_name, 'Katie', '... got the right author first name');
is($article2->author->last_name, 'Couric', '... got the right author last name');
- is($article2->status, 'posted', '... got the right status');
-
+ is($article2->status, 'posted', '... got the right status');
+
}
-unlink('newswriter.db') if -e 'newswriter.db';
\ No newline at end of file
projects / gitmo/Moose.git / blobdiff