projekt kivitendo

use Exporter qw(import);

our @EXPORT_OK = qw(db);

sub db {

  my $string = $_[0];

  my $lookup = $lxoffice_package_names{$_[0]} ||

      plurify($lxoffice_package_names{singlify($_[0])});

  for my $thing ($string, $lookup) {

    # best guess? its already the name. like part. camelize it first

    my $class = "SL::DB::" . camelify($thing);

    return $class if defined *{ $class. '::' };

    # next, someone wants a manager and pluralized.

    my $manager = "SL::DB::Manager::" . singlify(camelify($thing));

    return $manager if defined *{ $manager . '::' };

  }

  die "Can't resolve '$string' as a database model, sorry. Did you perhaps forgot to load it?";

}

sub camelify {

  my ($str) = @_;

  $str =~ s/_+(.)/uc($1)/ge;

  ucfirst $str;

}

sub snakify {

  my ($str) = @_;

  $str =~ s/(?<!^)\u(.)/'_' . lc($1)/ge;

  lcfirst $str;

}

sub plurify {

  my ($str) = @_;

  $str . 's';

}

sub singlify {

  my ($str) = @_;

  local $/ = 's';

  chomp $str;

  $str;

}

=head2 db

A special function provided here is E<db>. Without it you'd have to write:

  my $part = SL::DB::Part->new(id => 1234);

  my @all_parts = SL::DB::Manager::Part->get_all;

with them it becomes:

  my $part = db('part')->new(id => 123);

  my @all_parts = db('parts')->get_all;

You don't have to care about add that SL::DB:: incantation anymore. Also, a

simple s at the end will get you the associated Manager class.

db is written to try to make sense of what you give it, but if all fails, it

will die with an error.