Date::Range::Birth - range of birthday for an age
use Date::Range::Birth; # birthday for those who are 24 years old now my $range = Date::Range::Birth->new(24); # birthday for those who are 24 years old in 2001-01-01 my $date = Date::Simple->new(2001, 1, 1); my $range2 = Date::Range::Birth->new(24, $date); # birthday for those who are between 20 and 30 yeard old now my $range3 = Date::Range::Birth->new([ 20, 30 ]);
Date::Range::Birth is a subclass of Date::Range, which provides a way to construct range of dates for birthday.
$range = Date::Range::Birth->new($age); $range = Date::Range::Birth->new($age, $date); $range = Date::Range::Birth->new([ $young, $old ]); $range = Date::Range::Birth->new([ $young, $old ], $date);
returns Date::Range::Birth object for birthday of the age. If $date (Date::Simple object) provided, returns range of birthday for those who are $age years old in $date. Default is today (now).
$date
$age
If the age is provided as array reference (like [ $young, $old ]), returns range of birthday for those who are between $young - $old years old. It may be handy for searching teenagers, etc.
[ $young, $old ]
$young
$old
Other methods are inherited from Date::Range. See Date::Range for details.
Your customer database schema:
CREATE TABLE customer ( name varchar(64) NOT NULL, birthday date NOT NULL );
What you should do is to select name and birthday of the customers who are 2X years old (between 20 and 29).
use DBI; use Date::Range::Birth; my $dbh = DBI->connect( ... ); my $range = Date::Range::Birth->new([ 20, 29 ]); my $sth = $dbh->prepare(<<'SQL') SELECT name, birthday FROM customer WHERE birthday >= ? AND birthday <= ? SQL # Date::Simple overloads to 'yyyy-mm-dd'! $sth->execute($range->start, $range->end); while (my $data = $sth->fetchrow_arrayref) { print "name: $data->[0] birthday: $data->[1]\n"; } $dbh->disconnect;
Original idea by ikechin <ikebe@cpan.org>
Code implemented by Tatsuhiko Miyagawa <miyagawa@bulknews.net>
This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself.
Date::Range, Date::Simple, Date::Calc
To install Date::Range::Birth, copy and paste the appropriate command in to your terminal.
cpanm
cpanm Date::Range::Birth
CPAN shell
perl -MCPAN -e shell install Date::Range::Birth
For more information on module installation, please visit the detailed CPAN module installation guide.