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Hm, I'm not sure; not being too Twitter-savvy¹ I have a very vague understanding what a "list" and a "subscriber" is in this context. However, it looks like you updated your modules with hardcoded constants whenever you change some list. You could do something like this to read them from various sources like text files or SQLite:
package Twitter::Data; use Modern::Perl; sub new { my $class = shift; return bless {}, $class; } sub accounts { croak("Please override accounts()"); } sub get_account_data { croak("Please override get_account_data()"); } sub all_account_data { my $self = shift; my %accounts; foreach my $acct ($self->accounts) { $accounts{$acct} = $self->get_account_data($acct); } } package Twitter::Data::Text; use Modern::Perl; use Carp; use YAML; use base 'Twitter::Data'; sub new { my $class = shift; my %args = @_; defined $args{db} or croak("`db' arg missing"); -d $args{db} or croak("`db' arg is not a directory"); my $self = $class->SUPER::new(%args); $self->{db} = $args{db}; return $self; } # Get a list of all accounts sub accounts { my $self = shift; return glob("$self->{db}/*"); } sub get_account_data { my ($self, $acct) = @_; return YAML::LoadFile("$self->{db}/$acct/accontdata.yml"); } package Twitter::Data::SQLite; use Modern::Perl; use Carp; use DBIx::Simple; use parent 'Twitter::Data'; sub new { my $class = shift; my %args = @_; defined $args{db} or croak("`db' arg missing"); my $self = $class->SUPER::new(%args); $self->{db} = DBIx::Simple->new("dbi:SQLite:dbname=$args{db}",""," +") or croak("can't open db"); return $self; } # Get a list of all accounts sub accounts { my $self = shift; $self->{sql_acctnames}->execute; return $self->{db}->select('SELECT name FROM accounts')->flat; } sub get_account_data { my ($self, $acct) = @_; return $self->{db}->select('SELECT * FROM accounts WHERE name=?')- +>hash; }
A method like get_account_data would be shared by any underlying implementation so it would work no matter how the account data stuff is actually stored even though you call it on the object that is of a derived class.

¹ I follow a handful of news aggregators and never twit, or whatever the verb is for what you to on Twitter.

In reply to Re^7: RFC on how I'm doing when it comes to writing objects? by mbethke
in thread RFC on how I'm doing when it comes to writing objects? by Lady_Aleena

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    [LanX]: Socrates was a Troll
    [Your Mother]: It's very, very dangerous... Thinking that a group is intrinsically evil... buries the fact that all humans can be so deep that it starts to become likely they will be.
    [Your Mother]: LanX++
    [Corion]: (also the "troll for trolls sake" could seen be much like the "punk for punks beer")
    [Your Mother]: I'm completely (historically anyway) a troll in real life. It's not fun online, you can't really win. :P
    Happy-the-monk orders a Punk IPA.
    [Your Mother]: Also, I'm too old to start fights with strangers anymore.
    [LanX]: concentrating on omestic violence?
    [LanX]: d
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