NAME

Class::DBI::AbstractSearch - Abstract Class::DBI's SQL with SQL::Abstract::Limit

SYNOPSIS

            

              
              
package CD::Music;
use Class::DBI::AbstractSearch;
package main;
my @music = CD::Music->search_where(
    artist => [ 'Ozzy', 'Kelly' ],
    status => { '!=', 'outdated' },
);
my @misc = CD::Music->search_where(
    { artist => [ 'Ozzy', 'Kelly' ],
      status => { '!=', 'outdated' } },
    { order_by      => "reldate DESC",
      limit_dialect => 'LimitOffset',
      limit         => 1
      offset        => 2 });
            
          

DESCRIPTION

Class::DBI::AbstractSearch is a Class::DBI plugin to glue SQL::Abstract::Limit into Class::DBI.

METHODS

Using this module adds following methods into your data class.

search_where

            

              
              
$class->search_where(%where);
            
          

Takes a hash to specify WHERE clause. See SQL::Abstract for hash options.

            

              
              
$class->search_where(\%where,\%attrs);
            
          

Takes hash reference to specify WHERE clause. See SQL::Abstract for hash options. Takes a hash reference to specify additional query attributes. Class::DBI::AbstractSearch uses these attributes:

• order_by

  Array reference of fields that will be used to order the results of your query.

• limit_dialect

  Scalar, DBI handle, object class, etc. that describes the syntax model for a LIMIT/OFFSET SQL clause. Please see SQL::Abstract::Limit for more information.

• limit

  Scalar value that will be used for LIMIT argument in a query.

• offset

  Scalar value that will be used for OFFSET argument in a query.

Any other attributes are passed to the SQL::Abstract::Limit constructor, and can be used to control how queries are created. For example, to use 'AND' instead of 'OR' by default, use:

            

              
              
$class->search_where(\%where, { logic => 'AND' });
            
          

AUTHOR

Tatsuhiko Miyagawa <miyagawa@bulknews.net> with some help from cdbi-talk mailing list, especially:

            

              
              
Tim Bunce
Simon Wilcox
Tony Bowden
            
          

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

SEE ALSO

Class::DBI, SQL::Abstract, SQL::Abstract::Limit