yko/admin.pl

## admin.pl
#!/usr/bin/env perl

use Mojolicious::Lite;

get '/' => 'index';

get '/set-admin' => sub {
    my $self = shift;

    $self->session->{this_user_is_admin} = 1;
    $self->redirect_to('/');
} => 'became admin';

get '/unset-admin' => sub {
    my $self = shift;

    $self->session->{this_user_is_admin} = 0;
    $self->redirect_to('/');
} => 'logout';

app->helper(
    admin => sub {
        my $c  = shift;
        my $cb = shift;

        # By default return 1 on success
        $cb ||= sub {1};

        if ($c->session->{this_user_is_admin} == 1) {
            return Mojo::ByteStream->new($cb->(@_));
        }

        return undef;
    }
);

app->start;

__DATA__

@@ index.html.ep
% layout 'default';
<p>Welcome to Mojolicious!</p>

% # You can use 'admin' helper as boolean
% if (!admin) {
    You can <%= link_to 'became admin' => begin %>obtain adminship<%end%> (only today!)
% }

% # And format pretty block of code with new begin/end block!
<%= admin begin %>
    You are admin, but you can <%= link_to logout => begin %>logout<%end%> anytime.
<% end %>

@@ layouts/default.html.ep
<!doctype html><html>
 <head><title>Welcome!</title></head>
 <body>
  <%== content %>
 </body>
</html>
	#!/usr/bin/env perl

	use Mojolicious::Lite;

	get '/' => 'index';

	get '/set-admin' => sub {
	my $self = shift;

	$self->session->{this_user_is_admin} = 1;
	$self->redirect_to('/');
	} => 'became admin';

	get '/unset-admin' => sub {
	my $self = shift;

	$self->session->{this_user_is_admin} = 0;
	$self->redirect_to('/');
	} => 'logout';

	app->helper(
	admin => sub {
	my $c = shift;
	my $cb = shift;

	# By default return 1 on success
	$cb \|\|= sub {1};

	if ($c->session->{this_user_is_admin} == 1) {
	return Mojo::ByteStream->new($cb->(@_));
	}

	return undef;
	}
	);

	app->start;

	__DATA__

	@@ index.html.ep
	% layout 'default';
	<p>Welcome to Mojolicious!</p>

	% # You can use 'admin' helper as boolean
	% if (!admin) {
	You can <%= link_to 'became admin' => begin %>obtain adminship<%end%> (only today!)
	% }

	% # And format pretty block of code with new begin/end block!
	<%= admin begin %>
	You are admin, but you can <%= link_to logout => begin %>logout<%end%> anytime.
	<% end %>

	@@ layouts/default.html.ep
	<!doctype html><html>
	<head><title>Welcome!</title></head>
	<body>
	<%== content %>
	</body>
	</html>