NAME

DBIx::Class::Smooth::Functions - Specify columns

VERSION

Version 0.0108, released 2020-11-29.

SYNOPSIS

    use DBIx::Class::Smooth::Functions -all;

    # With DBIx::Class::Smooth
    $rs->annotate(first_two_from_column => Substring('title', 1, 2));
    $rs->annotate(first_two_from_string => Substring(\'The Fellowship', 1, 2));

    # Normal DBIx::Class
    $rs->search({}, { '+select' => [{ substring => ['title', 1, 2]}], '+as' => ['first_two_from_column'] });
    $rs->search({}, { '+select' => [ \['substring("The Fellowship", 1, 2)'] ], '+as' => ['first_two_from_string'] });

    # and then, regardless
    $rs->first->get_column('first_two_from_column');

DESCRIPTION

DBIx::Class::Smooth::Functions contains SQL function helpers. They work together with annotate (which is added by DBIx::Class::Smooth::ResultSet) to make adding calculated columns easier. See synopsis for a general example.

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__END__

Arguments

Pass a string to refer to a column name. Pass a reference to a string to pass a string to the database function.

STRING FUNCTIONS

$column_or_value can be either a quoted string (to refer to a column name) or a reference to a string (to pass a hard coded string to the SQL function). @columns_or_values is a list of $column_or_value.

* Ascii($column_or_value) * Bin($column_or_value) * CharLength($column_or_value) * Concat(@columns_or_values) * ConcatWS($separator, @columns_or_values) # $separator can be column or value as well * Elt($index, @columns_or_values) # * ExportSet($bits, $on, $off[, $separator[, $number_of_bits]]) # all parameters can be columns or values * Substring($column_or_value, $position[, $length])

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SOURCE

https://github.com/Csson/p5-DBIx-Class-Smooth

HOMEPAGE

https://metacpan.org/release/DBIx-Class-Smooth

AUTHOR

Erik Carlsson <info@code301.com>

COPYRIGHT AND LICENSE

This software is copyright (c) 2018 by Erik Carlsson.

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