DBIx::Class::InflateColumn - Automatically create objects from column data
# In your table classes __PACKAGE__->inflate_column('column_name', { inflate => sub { ... }, deflate => sub { ... }, });
This component translates column data into objects, i.e. "inflating" the column data. It also "deflates" objects into an appropriate format for the database.
It can be used, for example, to automatically convert to and from DateTime objects for your date and time fields.
Instruct DBIx::Class to inflate the given column.
In addition to the column name, you must provide inflate and deflate methods. The inflate method is called when you access the field, while the deflate method is called when the field needs to used by the database.
inflate
deflate
For example, if you have a table events with a timestamp field named insert_time, you could inflate the column in the corresponding table class using something like:
events
insert_time
__PACKAGE__->inflate_column('insert_time', { inflate => sub { DateTime::Format::Pg->parse_datetime(shift); }, deflate => sub { DateTime::Format::Pg->format_datetime(shift); }, });
(Replace DateTime::Format::Pg with the appropriate module for your database, or consider DateTime::Format::DBI.)
In this example, calls to an event's insert_time accessor return a DateTime object. This DateTime object is later "deflated" when used in the database layer.
Matt S. Trout <mst@shadowcatsystems.co.uk>
Daniel Westermann-Clark <danieltwc@cpan.org> (documentation)
You may distribute this code under the same terms as Perl itself.
To install DBIx::Class, copy and paste the appropriate command in to your terminal.
cpanm
cpanm DBIx::Class
CPAN shell
perl -MCPAN -e shell install DBIx::Class
For more information on module installation, please visit the detailed CPAN module installation guide.