From bc41a490a1ecd14e31b36a4531ced1203c0ed608 Mon Sep 17 00:00:00 2001
From: Alex Arnaud <alex.arnaud@biblibre.com>
Date: Fri, 22 Dec 2017 14:18:44 +0000
Subject: [PATCH] Bug 19873: Ability to search on 0 value

Test plan:
  - create a st-numeric index in zebra conf related to
    a numeric field
    i.e:
    yourindex 1=yourindex 4=109
  - fill a field with 0 in a biblio,
  - reindex your biblios,
  - search yourindex=0,
  - should not work,
  - apply this patch,
  - test again,
  - should work

Signed-off-by: Brendan Gallagher <brendan@bywatersolutions.com>
Signed-off-by: Julian Maurice <julian.maurice@biblibre.com>

Signed-off-by: Jonathan Druart <jonathan.druart@bugs.koha-community.org>
---
 C4/Search.pm | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/C4/Search.pm b/C4/Search.pm
index 172321292d..99953b2678 100644
--- a/C4/Search.pm
+++ b/C4/Search.pm
@@ -1532,7 +1532,7 @@ sub buildQuery {
         for ( my $i = 0 ; $i <= @operands ; $i++ ) {
 
             # COMBINE OPERANDS, INDEXES AND OPERATORS
-            if ( $operands[$i] ) {
+            if ( $operands[$i] ne '' ) {
 		$operands[$i]=~s/^\s+//;
 
               # A flag to determine whether or not to add the index to the query
@@ -1677,7 +1677,7 @@ sub buildQuery {
                     query_desc => $query_desc,
                     operator => ($operators[ $i - 1 ]) ? $operators[ $i - 1 ] : '',
                     parsed_operand => $operand,
-                    original_operand => ($operands[$i]) ? $operands[$i] : '',
+                    original_operand => ($operands[$i] ne '') ? $operands[$i] : '',
                     index => $index,
                     index_plus => $index_plus,
                     indexes_set => $indexes_set,
-- 
2.39.5