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support get_cache callback #11

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support get_cache callback #11

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48 changes: 37 additions & 11 deletions lib/Plack/Session/Store/Cache.pm
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Original file line number Diff line number Diff line change
Expand Up @@ -9,33 +9,46 @@ use Scalar::Util qw[ blessed ];

use parent 'Plack::Session::Store';

use Plack::Util::Accessor qw[ cache ];
use Plack::Util::Accessor qw[ cache get_cache ];

sub new {
my ($class, %params) = @_;

die('cache require get, set and remove method.')
unless blessed $params{cache}
&& $params{cache}->can('get')
&& $params{cache}->can('set')
&& $params{cache}->can('remove');
my $cache;
if ( $params{get_cache} ) {
$cache = $params{get_cache}->();
}
else {
$cache = $params{cache};
$params{get_cache} = sub { $params{cache} };
}

bless { %params } => $class;
die('cache require get, set and remove method.')
unless blessed $cache
&& $cache->can('get')
&& $cache->can('set')
&& $cache->can('remove');

bless {
prefix => '',
%params,
} => $class;
}


sub fetch {
my ($self, $session_id ) = @_;
$self->cache->get($session_id);
$self->get_cache->()->get($session_id);
}

sub store {
my ($self, $session_id, $session) = @_;
$self->cache->set($session_id => $session);
$self->get_cache->()->set($session_id => $session);
}

sub remove {
my ($self, $session_id) = @_;
$self->cache->remove($session_id);
$self->get_cache->()->remove($session_id);
}

1;
Expand Down Expand Up @@ -66,6 +79,15 @@ Plack::Session::Store::Cache - Cache session store
$app;
};

# set get_cache callback for ondemand
builder {
enable 'Session',
store => Plack::Session::Store::Cache->new(
get_cache => sub { MyAppSingleton->cache }
);
$app;
};

=head1 DESCRIPTION

This will persist session data using any module which implements the
Expand All @@ -81,14 +103,18 @@ its full interface.

=item B<new ( %params )>

The constructor expects the I<cache> param to be an object instance
The constructor expects the I<cache> param or return of I<get_cache> to be an object instance
which has the I<get>, I<set>, and I<remove> methods, it will throw an
exception if that is not the case.

=item B<cache>

A simple accessor for the cache handle.

=item B<get_cache>

A callback for the cache handle.

=back

=head1 BUGS
Expand Down
18 changes: 18 additions & 0 deletions t/005_basic_w_cache_store.t
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Expand Up @@ -55,5 +55,23 @@ t::lib::TestSession::run_all_tests(
},
);

my $cache = TestCache->new;
t::lib::TestSession::run_all_tests(
store => Plack::Session::Store::Cache->new( get_cache => sub { $cache } ),
state => Plack::Session::State->new,
env_cb => sub {
open my $in, '<', \do { my $d };
my $env = {
'psgi.version' => [ 1, 0 ],
'psgi.input' => $in,
'psgi.errors' => *STDERR,
'psgi.url_scheme' => 'http',
SERVER_PORT => 80,
REQUEST_METHOD => 'GET',
QUERY_STRING => join "&" => map { $_ . "=" . $_[0]->{ $_ } } keys %{$_[0] || +{}},
};
},
);


done_testing;
18 changes: 18 additions & 0 deletions t/005a_basic_w_cache_store.t
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Original file line number Diff line number Diff line change
Expand Up @@ -54,5 +54,23 @@ t::lib::TestSessionHash::run_all_tests(
},
);

my $cache = TestCache->new;
t::lib::TestSessionHash::run_all_tests(
store => Plack::Session::Store::Cache->new( get_cache => sub { $cache } ),
state => Plack::Session::State->new,
env_cb => sub {
open my $in, '<', \do { my $d };
my $env = {
'psgi.version' => [ 1, 0 ],
'psgi.input' => $in,
'psgi.errors' => *STDERR,
'psgi.url_scheme' => 'http',
SERVER_PORT => 80,
REQUEST_METHOD => 'GET',
QUERY_STRING => join "&" => map { $_ . "=" . $_[0]->{ $_ } } keys %{$_[0] || +{}},
};
},
);


done_testing;