Hi Guys,

i am currently stuck with a script at the moment,

This script is going to pull information from a .csv and then perform a MySQL select on a database, i then need to print one field of the Query as the result.

I have changed the modulenames, database,tables and field names due to DPA reasons.

Please see below;

#!/usr/bin/perl
use warnings;
use Text::CSV;
use DBI;
use DBD::mysql;
use modulename::DB;
use modulelogname::Log;
use Term::ReadKey;
my $username = get_username();
my $password = get_password();
my $host = get_host();


my $db = new modulename::DB::Hosting "$0.ini";
$db->setDriver('mysql');
$db->setUsername($username);
$db->setPassword($password);
$db->setHostname($host);
$db->setDatabase('database');


my $log = new modulelogname::Log;
$log->init('loglog');
$log->log("== log ==");


my $file = 'customers.csv';

my $csv = Text::CSV->new();



open (CSV, "<", $file) or die $!;

while (<CSV>) {
    if ($csv->parse($_)) {
        my @columns = $csv->fields();
        $custid = $columns[0];

        foreach ($custid) {
              my $sql = "SELECT email FROM database.table WHERE field=
+'$custid';";
                $db->query($sql) or $log->log("Failed to update on que
+ry $sql");

               # $sth->execute() or die "Execute exception: $DBI::errs
+tr";
                while (@row = $db->fetch_assoc($row[0])) {
                print "$row[0]...\n";
                $log->log("Email found for: $custid");
                }
}
}       else{
        my $err = $csv->error_input;
        print "Failed to parse line: $err";
        $log->log("Failed to parse line: $err");
                }
        }
close CSV;

sub get_username {
    ReadMode 0;
    print "Enter Username:\n";
    $username = <STDIN>;
    chomp($username);
    $username=~s/\s//g;
    return $username;
}

sub get_password {
    ReadMode 2;
    print "Enter Password:\n";
    $password = <STDIN>;
    chomp($password);
    $password =~s/\s//g;
    return $password;
}

sub get_host {
    ReadMode 0;
    print "Enter host:\n";
    $host = <STDIN>;
    chomp($host);
    return $host;
}
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This is the results i get;

[2014-02-14 14:30:51] Started at Fri Feb 14 14:30:51 2014
[2014-02-14 14:30:51] == customer email script ==
Hosting DB: [DBI connect dbi:mysql:database=DATABASE;hostname=hostname
+, user ashley.jordan]
Hosting DB: [connect ok from pid 2997]
Hosting DB: SELECT email FROM database.table WHERE field='1598';
Can't call method "fetchrow_hashref" on an undefined value at
    /usr/share/perl5/modulename/DB.pm line 877, <CSV> line 1 (#1)
    (F) You used the syntax of a method call, but the slot filled by t
+he
    object reference or package name contains an undefined value.  Som
+ething
    like this will reproduce the error:
    
        $BADREF = undef;
        process $BADREF 1,2,3;
        $BADREF->process(1,2,3);
    
Uncaught exception from user code:
    Can't call method "fetchrow_hashref" on an undefined value at /usr
+/share/perl5/modulename/DB.pm line 877, <CSV> line 1.
 at /usr/share/perl5/modulename/DB.pm line 877
    modulename::DB::fetch_assoc('modulename::DB::Hosting=HASH(0x30cdb6
+8)', undef) called at ./scriptnamet.pl line 45
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