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Time::Piece::MySQL

by jeffa (Bishop)
on Jan 04, 2004 at 19:02 UTC ( #318677=modulereview: print w/replies, xml ) Need Help??

Item Description: Bridges the gap between Perl and MySQL date-time types

Review Synopsis:

Time::Piece::MySQL is a very useful module for MySQL users. It is simply an extension to Time::Piece that provides a handful of methods for converting back and forth between Time::Piece objects and the MySQL date/time types: date, time, datetime, and timestamp. (The year type is available from Time::Piece, so it doesn't need to be here.)

As an example, say i had a table of events that contained an id and a datetime field:

+---------+------------------+
| Field   | Type             |
+---------+------------------+
| id      | int(10) unsigned |
| date    | datetime         |
+---------+------------------+
and i wanted to add 50 days to to each date. The following snippet would do just that:
use strict; use warnings; use DBI; use Time::Seconds; use Time::Piece::MySQL; my $dbh = DBI->connect( ... ); my $sth = $dbh->prepare('update events set date = ? where id = ?'); my $dates = $dbh->selectall_arrayref( 'select id,date from events', {Slice => {}} ); for (@$dates) { my $date = localtime->from_mysql_datetime( $_->{date} ); $date += ONE_DAY * 50; $sth->execute( $date->mysql_datetime, $_->{id} ); }
A very trivial example, but i think it demonstrates how it can make someone's Perl/MySQL script easier to work with.

Replies are listed 'Best First'.
Re: Time::Piece::MySQL
by CountZero (Bishop) on Jan 04, 2004 at 20:50 UTC
    I'm quite sure that this module will have a lot of good uses, but the example you give is --IMHO-- not one of such, as this problem can be solved from within MySQL itself:

    UPDATE events SET date = DATE_ADD(date, INTERVAL 50 DAY) WHERE id = ? will add 50 days to the date in the date-field.

    CountZero

    "If you have four groups working on a compiler, you'll get a 4-pass compiler." - Conway's Law

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[1nickt]: Corion HPs? ugh. I was impressed with Lenovo's gaming laptops; if it weren't for the red backlighting and general flashiness of the aesthetic, I might have gone with that. But all that was until I discovered that the Dell Precision line is still around.
[1nickt]: stevieb I don;t doubt that there's a difference. BestBuy has "consumer" models only on display.
[ambrus]: 1nickt: for some reason, these days they call every computer "gaming", even ones that gamers wouldn't buy. I've bought a keyboard that was labelled "gamer", despite that it has hard springs and seems to be way better for typing than for gaming;
[1nickt]: I though the gamers like that because they bash the keys so hard.
[ambrus]: and I've seen motherboards with no fast expansion ports for a video card but built-in hardware RAID advertized as "gaming".
LanX has a shaming laptop
[ambrus]: 1nickt: my impression is that the gamers like the softer springs, because fast reaction time is more important to them then feedback from keypresses to recognize typos.
[1nickt]: Ah, I see. I did read some gamer mag reviews, and yes, they lamented the fact that laptops with no discrete video card are sold as "gaming" hardware.
[1nickt]: But, they do have red keyboard backlighting! And gargoyles on the front, or words like "Maxxx" here and there. They know their demographic!
[1nickt]: True gamers don;t buy Dells, HPs, or Lenovos, I think ;-)

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