DBIx::Class::DynamicDeUsertContributed Perl DocuDBIx::Class::DynamicDefault(3)NAMEDBIx::Class::DynamicDefault - Automatically set and update fields
SYNOPSIS
package My::Schema::SomeTable;
__PACKAGE__->load_components(qw/DynamicDefault ... Core/);
__PACKAGE__->add_columns(
quux => { data_type => 'integer' },
quux_plus_one => { data_type => 'integer',
dynamic_default_on_create => \&quux_plus_one_default,
dynamic_default_on_update => 'quux_plus_one_default', },
last_changed => { data_type => 'integer',
dynamic_default_on_create => 'now',
dynamic_default_on_update => 'now, },
);
sub quux_plus_one_default {
my ($self) = @_;
return $self->quux + 1;
}
sub now {
return DateTime->now->epoch;
}
Now, any update or create actions will set the specified columns to the
value returned by the callback you specified as a method name or code
reference.
DESCRIPTION
Automatically set and update fields with values calculated at runtime.
OPTIONS
dynamic_default_on_create
dynamic_default_on_create => sub { ... }
dynamic_default_on_create => 'method_name'
When inserting a new row all columns with the
"dynamic_default_on_create" option will be set to the return value of
the specified callback unless the columns value has been explicitly
set. The callback, that'll be invoked with the row object as its only
argument, may be a code reference or a method name.
dynamic_default_on_update
dynamic_default_on_update => sub { ... }
dynamic_default_on_update => 'method_name'
When updating a row all columns with the "dynamic_default_on_update"
option will be set to the return value of the specified callback unless
the columns value has been explicitly set.
Columns will only be altered if other dirty columns exist. See
"always_update" on how to change this.
always_update
always_update => 1
When setting "always_update" to 1 "dynamic_default_on_update" callbacks
will always be invoked, even if no other columns are dirty.
AUTHOR
Florian Ragwitz <rafl@debian.org>
LICENSE
This software is copyright (c) 2008 by Florian Ragwitz.
This is free software; you can redistribute it and/or modify it under
the same terms as perl itself.
perl v5.14.2 2012-04-14 DBIx::Class::DynamicDefault(3)
