[Koha-patches] [PATCH] kohabug 2437 Corrects LIMIT offset algorithm

[Galen Charlton]

From: Chris Nighswonger <chris.nighswonger at liblime.com>

Because of a miscalculation in the offset algorithm, the LIMIT offset creeps
backwards by a magnitude for every page beyond page two. This patch corrects
the algorithm to behave as expected.

Signed-off-by: Galen Charlton <galen.charlton at liblime.com>
---
 C4/VirtualShelves/Page.pm |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/C4/VirtualShelves/Page.pm b/C4/VirtualShelves/Page.pm
index 4589aba..a81f1d0 100755
--- a/C4/VirtualShelves/Page.pm
+++ b/C4/VirtualShelves/Page.pm
@@ -66,9 +66,9 @@ sub shelfpage ($$$$$) {
 	my ($shelflimit, $shelfoffset, $shelveslimit, $shelvesoffset);
 	# FIXME: These limits should not be hardcoded...
 	$shelflimit = 20;	# Limits number of items returned for a given query
-	$shelfoffset = (($itemoff == 1) ? 0 : ($itemoff * 10));		# Sets the offset to begin retrieving items at
+	$shelfoffset = ($itemoff - 1) * 20;		# Sets the offset to begin retrieving items at
 	$shelveslimit = 20;	# Limits number of shelves returned for a given query (row_count)
-	$shelvesoffset = (($shelfoff == 1) ? 0 : ($shelfoff * 10));		# Sets the offset to begin retrieving shelves at (offset)
+	$shelvesoffset = ($shelfoff - 1) * 20;		# Sets the offset to begin retrieving shelves at (offset)
 	# getting the Shelves list
 	my $category = (($displaymode eq 'privateshelves') ? 1 : 2);
 	my ($shelflist, $totshelves) = GetShelves( $category, $shelveslimit, $shelvesoffset, $loggedinuser );
-- 
1.5.5.GIT