use strict;
use warnings;
-use overload
- '0+' => 'count',
- fallback => 1;
sub new {
- my ($it_class, $db_class, $sth, $args, $cols, $attrs) = @_;
- $sth->execute(@{$args || []}) unless $sth->{Active};
+ my ($it_class, $sth, $args, $attrs) = @_;
+ #use Data::Dumper; warn Dumper(@_);
+ $it_class = ref $it_class if ref $it_class;
my $new = {
- class => $db_class,
sth => $sth,
- cols => $cols,
args => $args,
+ pos => 0,
attrs => $attrs };
return bless ($new, $it_class);
}
sub next {
my ($self) = @_;
+ return if $self->{attrs}{rows}
+ && $self->{pos} >= $self->{attrs}{rows}; # + $self->{attrs}{offset});
+ unless ($self->{live_sth}) {
+ $self->{sth}->execute(@{$self->{args} || []});
+ if (my $offset = $self->{attrs}{offset}) {
+ $self->{sth}->fetch for 1 .. $offset;
+ }
+ $self->{live_sth} = 1;
+ }
my @row = $self->{sth}->fetchrow_array;
- return unless @row;
- #unless (@row) { $self->{sth}->finish; return; }
- return $self->{class}->_row_to_object($self->{cols}, \@row);
+ $self->{pos}++ if @row;
+ return @row;
}
-sub count {
+sub reset {
my ($self) = @_;
- if (my $cond = $self->{attrs}->{where}) {
- my $class = $self->{class};
- my $sth = $class->_get_sth( 'select', [ 'COUNT(*)' ],
- $class->_table_name, $cond);
- $sth->execute(@{$self->{args} || []});
- my ($count) = $sth->fetchrow_array;
- $sth->finish;
- return $count;
- } else {
- return scalar $_[0]->all; # So inefficient
- }
+ $self->{sth}->finish if $self->{sth}->{Active};
+ $self->{pos} = 0;
+ $self->{live_sth} = 0;
+ return $self;
}
-sub all {
+sub DESTROY {
my ($self) = @_;
- $self->reset;
- my @all;
- while (my $obj = $self->next) {
- push(@all, $obj);
- }
- $self->reset;
- return @all;
-}
-
-sub reset {
- $_[0]->{sth}->finish if $_[0]->{sth}->{Active};
- $_[0]->{sth}->execute(@{$_[0]->{args} || []});
- return $_[0];
-}
-
-sub first {
- return $_[0]->reset->next;
+ $self->{sth}->finish if $self->{sth}->{Active};
}
1;