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Top Forums Shell Programming and Scripting Calculating the epoch time from standard time using awk and calculating the duration Post 302646327 by Scrutinizer on Friday 25th of May 2012 02:31:55 AM
Old 05-25-2012
Although this latter approach is not a conversion but an approximation and it will show (big) conversion errors around date changes..
 

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DBIx::Class::DateTime::Epoch(3pm)			User Contributed Perl Documentation			 DBIx::Class::DateTime::Epoch(3pm)

NAME
DBIx::Class::DateTime::Epoch - Automatic inflation/deflation of epoch-based columns to/from DateTime objects SYNOPSIS
package MySchema::Foo; use base qw( DBIx::Class ); __PACKAGE__->load_components( qw( DateTime::Epoch TimeStamp Core ) ); __PACKAGE__->add_columns( name => { data_type => 'varchar', size => 10, }, bar => { # epoch stored as an int data_type => 'bigint', inflate_datetime => 1, }, baz => { # epoch stored as a string data_type => 'varchar', size => 50, inflate_datetime => 'epoch', }, # working in conjunction with DBIx::Class::TimeStamp creation_time => { data_type => 'bigint', inflate_datetime => 1, set_on_create => 1, }, modification_time => { data_type => 'bigint', inflate_datetime => 1, set_on_create => 1, set_on_update => 1, } ); DATETIME
::FORMAT DEPENDENCY There have been no assumptions made as to what RDBMS you will be using. As per the note in the DBIx::Class::InflateColumn::DateTime documentation, you will need to install the DateTime::Format::* module that matches your RDBMS of choice. DESCRIPTION
This module automatically inflates/deflates DateTime objects from/to epoch values for the specified columns. This module is essentially an extension to DBIx::Class::InflateColumn::DateTime so all of the settings, including "locale" and "timezone", are also valid. A column will be recognized as an epoch time given one of the following scenarios: o "data_type" is an "int" of some sort and "inflate_datetime" is also set to a true value o "data_type" is some other value (e.g. "varchar") and "inflate_datetime" is explicitly set to "epoch". DBIx::Class::TimeStamp can also be used in conjunction with this module to support epoch-based columns that are automatically set on creation of a row and updated subsequent modifications. METHODS
add_columns( ) Provides backwards compatibility with the older DateTime::Epoch API. _inflate_to_datetime( ) Overrides column inflation to use "Datetime->from_epoch". _deflate_from_datetime( ) Overrides column deflation to call "epoch()" on the column value. SEE ALSO
o DBIx::Class o DBIx::Class::TimeStamp o DateTime AUTHORS
Brian Cassidy <bricas@cpan.org> Adam Paynter <adapay@cpan.org> COPYRIGHT AND LICENSE
Copyright 2006-2012 by Brian Cassidy This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself. perl v5.14.2 2012-02-01 DBIx::Class::DateTime::Epoch(3pm)
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