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.\" ========================================================================
.\"
.IX Title "Class::DBI::AbstractSearch 3pm"
.TH Class::DBI::AbstractSearch 3pm "2009-07-21" "perl v5.10.0" "User Contributed Perl Documentation"
.\" For nroff, turn off justification.  Always turn off hyphenation; it makes
.\" way too many mistakes in technical documents.
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.nh
.SH "NAME"
Class::DBI::AbstractSearch \- Abstract Class::DBI's SQL with SQL::Abstract::Limit
.SH "SYNOPSIS"
.IX Header "SYNOPSIS"
.Vb 2
\&  package CD::Music;
\&  use Class::DBI::AbstractSearch;
\&
\&  package main;
\&  my @music = CD::Music\->search_where(
\&      artist => [ \*(AqOzzy\*(Aq, \*(AqKelly\*(Aq ],
\&      status => { \*(Aq!=\*(Aq, \*(Aqoutdated\*(Aq },
\&  );
\&
\&  my @misc = CD::Music\->search_where(
\&      { artist => [ \*(AqOzzy\*(Aq, \*(AqKelly\*(Aq ],
\&        status => { \*(Aq!=\*(Aq, \*(Aqoutdated\*(Aq } },
\&      { order_by      => "reldate DESC",
\&        limit_dialect => \*(AqLimitOffset\*(Aq,
\&        limit         => 1
\&        offset        => 2 });
.Ve
.SH "DESCRIPTION"
.IX Header "DESCRIPTION"
Class::DBI::AbstractSearch is a Class::DBI plugin to glue
SQL::Abstract::Limit into Class::DBI.
.SH "METHODS"
.IX Header "METHODS"
Using this module adds following methods into your data class.
.IP "search_where" 4
.IX Item "search_where"
.Vb 1
\&  $class\->search_where(%where);
.Ve
.Sp
Takes a hash to specify \s-1WHERE\s0 clause. See SQL::Abstract for hash
options.
.Sp
.Vb 1
\&  $class\->search_where(\e%where,\e%attrs);
.Ve
.Sp
Takes hash reference to specify \s-1WHERE\s0 clause. See SQL::Abstract
for hash options. Takes a hash reference to specify additional query
attributes. Class::DBI::AbstractSearch uses these attributes:
.RS 4
.IP "\(bu" 4
\&\fBorder_by\fR
.Sp
Array reference of fields that will be used to order the results of
your query.
.IP "\(bu" 4
\&\fBlimit_dialect\fR
.Sp
Scalar, \s-1DBI\s0 handle, object class, etc. that describes the syntax model
for a \s-1LIMIT/OFFSET\s0 \s-1SQL\s0 clause.  Please see SQL::Abstract::Limit
for more information.
.IP "\(bu" 4
\&\fBlimit\fR
.Sp
Scalar value that will be used for \s-1LIMIT\s0 argument in a query.
.IP "\(bu" 4
\&\fBoffset\fR
.Sp
Scalar value that will be used for \s-1OFFSET\s0 argument in a query.
.RE
.RS 4
.Sp
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 '\s-1AND\s0' instead of '\s-1OR\s0' by default, use:
.Sp
.Vb 1
\&    $class\->search_where(\e%where, { logic => \*(AqAND\*(Aq });
.Ve
.RE
.SH "AUTHOR"
.IX Header "AUTHOR"
Tatsuhiko Miyagawa <miyagawa@bulknews.net> with some help from
cdbi-talk mailing list, especially:
.PP
.Vb 3
\&  Tim Bunce
\&  Simon Wilcox
\&  Tony Bowden
.Ve
.PP
This library is free software; you can redistribute it and/or modify
it under the same terms as Perl itself.
.SH "SEE ALSO"
.IX Header "SEE ALSO"
Class::DBI, SQL::Abstract, SQL::Abstract::Limit