26 |
my $db = WebPAC::Input->new( |
my $db = WebPAC::Input->new( |
27 |
format => 'NULL', |
format => 'NULL', |
28 |
config => $config, |
config => $config, |
29 |
|
lookup => $lookup_obj, |
30 |
|
low_mem => 1, |
31 |
); |
); |
32 |
|
|
33 |
$db->open('/path/to/database'); |
$db->open('/path/to/database'); |
35 |
while (my $row = $db->fetch) { |
while (my $row = $db->fetch) { |
36 |
... |
... |
37 |
} |
} |
|
$db->close; |
|
38 |
|
|
39 |
=head1 FUNCTIONS |
=head1 FUNCTIONS |
40 |
|
|
42 |
|
|
43 |
Create new input database object. |
Create new input database object. |
44 |
|
|
45 |
my $db = new WebPAC::Input( format => 'NULL' ); |
my $db = new WebPAC::Input( |
46 |
|
format => 'NULL' |
47 |
|
code_page => 'ISO-8859-2', |
48 |
|
low_mem => 1, |
49 |
|
); |
50 |
|
|
51 |
|
Optional parametar C<code_page> specify application code page (which will be |
52 |
|
used internally). This should probably be your terminal encoding, and by |
53 |
|
default, it C<ISO-8859-2>. |
54 |
|
|
55 |
This function will load needed wrapper module and |
Default is not to use C<low_mem> options (see L<MEMORY USAGE> below). |
56 |
|
|
57 |
=cut |
=cut |
58 |
|
|
61 |
my $self = {@_}; |
my $self = {@_}; |
62 |
bless($self, $class); |
bless($self, $class); |
63 |
|
|
64 |
$self ? return $self : return undef; |
$self->{'code_page'} ||= 'ISO-8859-2'; |
|
} |
|
65 |
|
|
66 |
=head2 open |
my $log = $self->_get_logger; |
67 |
|
|
68 |
=cut |
# running with low_mem flag? well, use DBM::Deep then. |
69 |
|
if ($self->{'low_mem'}) { |
70 |
|
$log->info("running with low_mem which impacts performance (<32 Mb memory usage)"); |
71 |
|
|
72 |
sub open { |
my $db_file = "data.db"; |
|
} |
|
73 |
|
|
74 |
=head2 function2 |
if (-e $db_file) { |
75 |
|
unlink $db_file or $log->logdie("can't remove '$db_file' from last run"); |
76 |
|
$log->debug("removed '$db_file' from last run"); |
77 |
|
} |
78 |
|
|
79 |
=cut |
require DBM::Deep; |
80 |
|
|
81 |
sub function2 { |
my $db = new DBM::Deep $db_file; |
82 |
} |
|
83 |
|
$log->logdie("DBM::Deep error: $!") unless ($db); |
84 |
|
|
85 |
|
if ($db->error()) { |
86 |
|
$log->logdie("can't open '$db_file' under low_mem: ",$db->error()); |
87 |
|
} else { |
88 |
|
$log->debug("using file '$db_file' for DBM::Deep"); |
89 |
|
} |
90 |
|
|
91 |
|
$self->{'db'} = $db; |
92 |
|
} |
93 |
|
|
94 |
|
$self ? return $self : return undef; |
95 |
|
} |
96 |
|
|
97 |
=head1 MEMORY USAGE |
=head1 MEMORY USAGE |
98 |
|
|