DBIx::Class::Helper::ResultSet::AutoRemoveColumns(3) Automatically remove columns from a ResultSet

SYNOPSIS


package MySchema::Result::Bar;
use strict;
use warnings;
use parent 'DBIx::Class::Core';
__PACKAGE__->table('KittenRobot');
__PACKAGE__->add_columns(
id => {
data_type => 'integer',
is_auto_increment => 1,
},
kitten => {
data_type => 'integer',
},
robot => {
data_type => 'text',
is_nullable => 1,
},
your_mom => {
data_type => 'blob',
is_nullable => 1,
remove_column => 0,
},
);
1;
package MySchema::ResultSet::Bar;
use strict;
use warnings;
use parent 'DBIx::Class::ResultSet';
__PACKAGE__->load_components('Helper::ResultSet::AutoRemoveColumns');

DESCRIPTION

This component automatically removes ``heavy-weight'' columns. To be specific, columns of type "text", "ntext", "blob", "clob", or "bytea". You may use the "remove_column" key in the column info to specify directly whether or not to remove the column automatically. See ``NOTE'' in DBIx::Class::Helper::ResultSet for a nice way to apply it to your entire schema.

METHODS

_should_column_fetch

 $self->_should_column_fetch('kitten')

returns true if a column should be fetched or not. This fetches a column if it is not of type "text", "ntext", "blob", "clob", or "bytea" or the "remove_column" is set to true. If you only wanted to explicitly state which columns to remove you might override this method like this:

 sub _should_column_fetch {
    my ( $self, $column ) = @_;
    my $info = $self->column_info($column);
    return !defined $info->{remove_column} || $info->{remove_column};
 }

fetchable_columns

simply returns a list of columns that are fetchable.

AUTHOR

Arthur Axel ``fREW'' Schmidt <[email protected]>

COPYRIGHT AND LICENSE

This software is copyright (c) 2015 by Arthur Axel ``fREW'' Schmidt.

This is free software; you can redistribute it and/or modify it under the same terms as the Perl 5 programming language system itself.