package SUi;
use Mojo::Base 'Mojolicious';
sub startup {
my $self = shift;
$self->helper('db' => sub { some stuff });
$self->routesr->any('/store')->to('ui#store')
}

##</code><code>##

package SUi::Ui;
use SUi::Ext;
use Mojo::Base 'Mojolicious::Controller';
sub store{
my ($self) = @_;

my $db = $self->db; //Works!
my $req = $self->req->param(); //Works!

my $ext = SUi::Ext->new();
$ext->test()
}

##</code><code>##

package SUi::Ext;
use Mojo::Base 'Mojolicious::Controller';
sub text{
my ($self) = @_;
my $db = $self->db; //Does't work!
my $db = $self->app->db; //Does't wotk
my $req = $self->req->param(); //Doen't work!
my $req = $self->app->req->param(); //Doen't work!
}