1 |
package A3C::SQL; |
2 |
|
3 |
use strict; |
4 |
use warnings; |
5 |
|
6 |
use base qw(Jifty::Object Class::Accessor::Fast); |
7 |
__PACKAGE__->mk_accessors( qw(query arguments dbh) ); |
8 |
|
9 |
use Data::Dump qw/dump/; |
10 |
|
11 |
=head1 NAME |
12 |
|
13 |
A3C::SQL |
14 |
|
15 |
=head1 DESCRIPTION |
16 |
|
17 |
Issue SQL queries |
18 |
|
19 |
=head1 METHODS |
20 |
|
21 |
=head2 new |
22 |
|
23 |
my $sql = A3C::SQL->new({ query => 'select now()' }); |
24 |
|
25 |
As a alternative, if you don't want to use Jifty's database handle, |
26 |
specify it like this: |
27 |
|
28 |
my $sql = A3C::SQL->new({ |
29 |
query => 'select now()', |
30 |
dbh => $my_dbh, |
31 |
}); |
32 |
|
33 |
=head2 sth |
34 |
|
35 |
Execute query and return statement handle. Ususally you don't have to call this manually. |
36 |
|
37 |
=cut |
38 |
|
39 |
sub sth { |
40 |
my $self = shift; |
41 |
if ( ! $self->{_sth} ) { |
42 |
my $dbh = $self->dbh || Jifty->handle->dbh; |
43 |
my $sth = $dbh->prepare( $self->query ) or $dbh->errstr; |
44 |
if ( $self->arguments ) { |
45 |
Jifty->log->debug( $self->sql . ' arguments: ' . dump( $self->arguments ) ); |
46 |
$sth->execute( $self->arguments ) or $dbh->errstr; |
47 |
} else { |
48 |
$sth->execute or $dbh->errstr; |
49 |
} |
50 |
$self->{_sth} = $sth; |
51 |
} |
52 |
|
53 |
return $self->{_sth}; |
54 |
} |
55 |
|
56 |
=head2 next |
57 |
|
58 |
while ( my $row = $sql->next ) { |
59 |
print $row->now; |
60 |
} |
61 |
|
62 |
=cut |
63 |
|
64 |
sub next { |
65 |
my $self = shift; |
66 |
my $row = $self->sth->fetchrow_hashref; |
67 |
return unless defined $row; |
68 |
return A3C::SQL::row->new( $row ); |
69 |
} |
70 |
|
71 |
=head2 count |
72 |
|
73 |
print $sql->count; |
74 |
|
75 |
=cut |
76 |
|
77 |
sub count { |
78 |
my $self = shift; |
79 |
return $self->sth->rows; |
80 |
} |
81 |
|
82 |
package A3C::SQL::row; |
83 |
|
84 |
use Encode qw/decode/; |
85 |
use Data::Dump qw/dump/; |
86 |
|
87 |
our $AUTOLOAD; |
88 |
|
89 |
sub new { |
90 |
my $that = shift; |
91 |
my $class = ref($that) || $that; |
92 |
my $self = shift; |
93 |
bless $self, $class; |
94 |
return $self; |
95 |
} |
96 |
|
97 |
sub AUTOLOAD { |
98 |
my $self = shift; |
99 |
my $type = ref($self) or die "$self is not an object"; |
100 |
my $name = $AUTOLOAD; |
101 |
$name =~ s/.*://; |
102 |
# warn "SQL: $name doesn't exist" unless defined($self->{$name}); |
103 |
return decode('UTF-8', $self->{$name}); |
104 |
} |
105 |
|
106 |
sub DESTROY {} |
107 |
|
108 |
1; |