Brian Cassidy


DBIx::Class::DateTime::Epoch - Automatic inflation/deflation of epoch-based columns to/from DateTime objects


    package MySchema::Foo;
    use base qw( DBIx::Class );
    __PACKAGE__->load_components( qw( DateTime::Epoch TimeStamp Core ) );
        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,


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.


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:

  • data_type is an int of some sort and inflate_datetime is also set to a true value

  • 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.


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.



Brian Cassidy <>

Adam Paynter <>


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.