From: Peter Rabbitson <ribasushi@cpan.org>
Date: Mon, 2 Feb 2009 17:38:16 +0000 (+0000)
Subject: Bring back _RowNumberOver deleted in the sqla commotion (revs: 5096,5322,5383)
X-Git-Tag: v0.08240~149
X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?a=commitdiff_plain;h=635a02ba4161a321d876d5fb918d862cc3e32a61;p=dbsrgits%2FDBIx-Class.git

Bring back _RowNumberOver deleted in the sqla commotion (revs: 5096,5322,5383)
---

diff --git a/lib/DBIx/Class/Storage/DBI.pm b/lib/DBIx/Class/Storage/DBI.pm
index 5bafd7c..014deee 100644
--- a/lib/DBIx/Class/Storage/DBI.pm
+++ b/lib/DBIx/Class/Storage/DBI.pm
@@ -50,6 +50,29 @@ sub new {
   $self;
 }
 
+sub _RowNumberOver {
+  my ($self, $sql, $order, $rows, $offset ) = @_;
+
+  $offset += 1;
+  my $last = $rows + $offset;
+  my ( $order_by ) = $self->_order_by( $order );
+
+  $sql = <<'SQL';
+SELECT * FROM
+(
+   SELECT Q1.*, ROW_NUMBER() OVER( ) AS ROW_NUM FROM (
+      $sql
+      $order_by
+   ) Q1
+) Q2
+WHERE ROW_NUM BETWEEN $offset AND $last
+
+SQL
+
+  return $sql;
+}
+
+
 # While we're at it, this should make LIMIT queries more efficient,
 #  without digging into things too deeply
 use Scalar::Util 'blessed';