NAME

Kelp::Base - Simple lazy attributes

SYNOPSIS

            

              
              
use Kelp::Base;
attr source => 'dbi:mysql:users';
attr user   => 'test';
attr pass   => 'secret';
attr opts   => { PrintError => 1, RaiseError => 1 };
attr dbh => sub {
    my $self = shift;
    DBI->connect( $self->sourse, $self->user, $self->pass, $self->opts );
};
# Later ...
sub do_stuff {
    my $self = shift;
    $self->dbh->do('DELETE FROM accounts');
}
            
          

or

            

              
              
use Kelp::Base 'Module::Name';    # Extend Module::Name
            
          

or

            

              
              
use Kelp::Base -strict;    # Only use strict, warnings and v5.10
                              # No magic
            
          

DESCRIPTION

This module provides simple lazy attributes.

WHY?

Some users will naturally want to ask "Why not use Moose/Mouse/Moo/Mo?". The answer is that the Kelp web framework needs lazy attributes, but the author wanted to keep the code light and object manager agnostic. This allows the users of the framework to choose an object manager to their liking. There is nothing more annoying than a module that forces you to use Moose when you are perfectly fine with Moo or Mo, for example.

USAGE

            

              
              
use Kelp::Base;
            
          

The above will automatically include strict, warnings and v5.10. It will also inject a new sub in the current class called attr.

            

              
              
attr name1 => 1;                      # Fixed value
attr name2 => sub { [ 1, 2, 3 ] };    # Array
attr name3 => sub {
    $_[0]->other;
  }
...
say $self->name1;               # 1
$self->name2( [ 6, 7, 8 ] );    # Set new value
            
          

All those attributes will be available for reading and writing in each instance of the current class. If you want to create a read-only attribute, prefix its name with a dash.

            

              
              
attr -readonly => "something";
# Later
say $self->readonly;           # something
$self->readonly("nothing");    # no change
            
          

SEE ALSO

Kelp, Moose, Moo, Mo, Any::Moose