Hi, i'm playing around with Mouse roles and got stuck.

Role #1:

package ReadFile;

use Mouse::Role;
use MyTypes;
use IO::File;

requires qw(lines);

has '_io' => (
    is       => 'ro',
    isa      => 'MyCompany::ReadFile',
    builder  => '_build_read_file',
    handles  => [ qw( open getlines close) ],
    init_arg => undef,
    lazy     => 1,
);

sub _build_read_file() {
    my $self = shift;
    IO::File->new();
}

# sub read_file() {
#     my ( $self, $file ) = @_;
#     $self->open( $file);
#     my @lines = $self->getlines();
#     $self->close();
#     chomp(@lines);
#     $self->lines(\@lines);
# }

1;
[download]

This one fails on init with the followings errors:

Could not load class (ReadFile) because : Undefined subroutine &IO::Handle::_create_getline_subs called at C:/strawberry/perl/lib/IO/Handle.pm line 434.

In Handle.pm Line 434: # Special XS wrapper to make them inherit lexical hints from the caller. _create_getline_subs(<<'END' ) or die $@;

Compilation failed in require at C:/strawberry/perl/lib/IO/Seekable.pm line 101.

In Seekable.pm line 101: use IO::Handle ();

Compilation failed in require at C:/strawberry/perl/lib/IO/File.pm line 133.

In File.pm line 133: use IO::Seekable;

But the next one works.

Role #2:

package DBIxODBC;

use Mouse::Role;
use MyTypes;
use DBIx::Simple;

requires qw( user passwd dsn );

with qw(Timestamp);

has 'data' => (
    is      => 'rw',
    isa     => 'HashRef',
    trigger => \&_load,
);

has '_dbix' => (
    is      => 'ro',
    isa     => 'MyCompany::DBIx',
    handles => [qw( insert)],
    builder => '_build_dbix',
    init_arg => undef,
    lazy    => 1,
);

sub _build_dbix() {
    my $self = shift;
    my $connect_string;
    $connect_string = "dbi:ODBC:" . $self->dsn;
    DBIx::Simple->new( $connect_string, $self->user, $self->passwd );
}

sub _load() {
    my ( $self, $input ) = @_;
    my $table = ( keys %$input )[0];
    $self->insert( $table, $input->{$table} );
    print $self->timestamp . qq(\n);
}

1;
[download]

Thank you very much for any advice.

Best regards,

Karl

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