I've read the
Simple Module Tutorial and realized that I probably don't need to use objects, modules will work for me. I still have one question that has been evading me: What's the best way to use objects in exported functions?
I've got a main program that looks like this:
#!/usr/bin/perl -w
use strict;
use DBI;
use Exported qw(:All);
my $db_info = "dbi:mysql:database;host=localhost";
our $dbh = DBI->connect($db_info, 'username', 'password', { PrintError
+ => 0 }) or
die("Couldn't connect to database\n");
print "info: " , getdb() , "\n";
And the Exported.pm module looks like this:
#!/usr/bin/perl -w
package Exported;
use strict;
use Exporter;
use vars qw($VERSION @ISA @EXPORT @EXPORT_OK %EXPORT_TAGS);
$VERSION = 1.00;
@ISA = qw(Exporter);
@EXPORT = (); # no default exports
@EXPORT_OK = qw(&getdb);
%EXPORT_TAGS = ( All => [qw(&getdb)] );
sub getdb {
my $query = $main::dbh->selectrow_hashref("SELECT something FROM a
+_table");
return $query->{'explanation'};
}
See that $main::dbh->selectrow_hashref()? I don't like it at all. Is there a better way to access the $dbh object from Exported.pm?
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