class::dbi::sql::transformer(3pm) [debian man page]
Class::DBI::SQL::Transformer(3pm) User Contributed Perl Documentation Class::DBI::SQL::Transformer(3pm)NAME
Class::DBI::SQL::Transformer - Transform SQL
SYNOPSIS
my $trans = $tclass->new($self, $sql, @args);
return $self->SUPER::transform_sql($trans->sql => $trans->args);
DESCRIPTION
Class::DBI hooks into the transform_sql() method in Ima::DBI to provide its own SQL extensions. Class::DBI::SQL::Transformer does the heavy
lifting of these transformations.
CONSTRUCTOR
new
my $trans = $tclass->new($self, $sql, @args);
Create a new transformer for the SQL and arguments that will be used with the given object (or class).
sql / args
my $sql = $trans->sql;
my @args = $trans->args;
The transformed SQL and args.
perl v5.12.4 2005-09-20 Class::DBI::SQL::Transformer(3pm)
Check Out this Related Man Page
Class::DBI::AbstractSearch(3pm) User Contributed Perl Documentation Class::DBI::AbstractSearch(3pm)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 { '!=', 'outdated' },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 { '!=', 'outdated' } },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:
o order_by
Array reference of fields that will be used to order the results of your query.
o 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.
o limit
Scalar value that will be used for LIMIT argument in a query.
o 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
perl v5.10.0 2009-07-21 Class::DBI::AbstractSearch(3pm)
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