File Coverage

blib/lib/SQL/Load/Method.pm

Criterion	Covered	Total	%
statement	64	67	95.5
branch	9	14	64.2
condition			n/a
subroutine	13	13	100.0
pod	9	9	100.0
total	95	103	92.2

package SQL::Load::Method;

use strict;
use warnings;
use SQL::Load::Util qw/
    parse
    name_list
/;

sub new {
    my ($class, $content) = @_;

    my ($data, $hash, $keys, $list) = $class->_parse($content);

    my $self = {
        _data => $data,
        _hash => $hash,
        _keys => $keys,
        _list => $list,
        _next => 0
    };

    return bless $self, $class;
}

sub default {
    my $self = shift;

    return $self->{_hash}->{default} if exists $self->{_hash}->{default};
    return $self->{_list}->[0]       if exists $self->{_list}->[0];

    return;
}

sub name {
    my ($self, $name) = @_;

    my $real = exists $self->{_keys}->{$name} ? $self->{_keys}->{$name} : $name;

    return $self->{_hash}->{$real} if exists $self->{_hash}->{$real};

    return;
}

sub next {
    my $self = shift;

    if (defined $self->{_next}) {
        my $next = $self->{_next}++;

        return $self->{_list}->[$next] if exists $self->{_list}->[$next];

        $self->{_next} = undef;
    }

    return;
}

sub at {
    my ($self, $index) = @_;

    return $self->{_list}->[$index - 1] if exists $self->{_list}->[$index - 1];

    return;
}

sub first {
    my $self = shift;

    return $self->{_list}->[0];
}

sub last {
    my $self = shift;

    return $self->{_list}->[-1];
}

sub replace {
    my $self = shift;

    my %replace = @_;

    for my $name (keys %replace) {
        my $value = $replace{$name};

        # replace in hash
        for my $key (keys %{$self->{_hash}}) {
            $self->{_hash}->{$key} =~ s/${name}/${value}/g;
        }

        # replace in list
        for (my $i = 0; $i < scalar(@{$self->{_list}}); $i++) {
            $self->{_list}->[$i] =~ s/${name}/${value}/g;
        }
    }

    return $self;
}

sub reset {
    my $self = shift;

    my @data = @{$self->{_data}};

    # reset hash
    my %hash = @data;
    $self->{_hash} = \%hash;

    # reset list
    my @list;
    for (my $i = 0; $i < scalar(@data); $i += 2) {
        push(@list, $data[$i + 1]);
    }
    $self->{_list} = \@list;

    # reset next
    $self->{_next} = 0;

    return $self;
}

sub _parse {
    my ($self, $content) = @_;

    my @data = parse($content);
    my %hash = @data;
    my %keys;
    my @list;

    for (my $i = 0; $i < scalar(@data); $i += 2) {
        my $name = $data[$i];
        my @name_list = name_list($name);

        for (@name_list) {
            $keys{$_} = $name;
        }

        push(@list, $data[$i + 1]);
    }

    return (\@data, \%hash, \%keys, \@list);
}

1;

__END__