Bug 28554: In Koha::AuthorisedValues sort by description

In itemsearch form, there are several filters build with authorized values.
There values should be sorted by description.

Test plan :
1) Create several values and descriptions in authorized values LOC
2) Go to itemsearch
3) See filter by location sorts on description and not on value

Seems change in search_by_marc_field can not be tested in interface

Signed-off-by: David Nind <david@davidnind.com>

Signed-off-by: Katrin Fischer <katrin.fischer.83@web.de>

Signed-off-by: David Nind <david@davidnind.com>

Signed-off-by: Katrin Fischer <katrin.fischer.83@web.de>

Signed-off-by: Jonathan Druart <jonathan.druart@bugs.koha-community.org>
Signed-off-by: Kyle M Hall <kyle@bywatersolutions.com>
(cherry picked from commit ee27af1cd9)
Signed-off-by: Fridolin Somers <fridolin.somers@biblibre.com>

Koha/AuthorisedValues.pm

@@ -79,7 +79,10 @@ sub search_by_marc_field {
             ( defined $tagfield    ? ( 'marc_subfield_structures.tagfield'    => $tagfield )    : () ),
             ( defined $tagsubfield ? ( 'marc_subfield_structures.tagsubfield' => $tagsubfield ) : () ),
         },
-        { join => { category => 'marc_subfield_structures' } }
+        {
+            join => { category => 'marc_subfield_structures' },
+            order_by => [ 'category', 'lib', 'lib_opac' ],
+        }
     );
 }
 
@@ -98,6 +101,7 @@ sub search_by_koha_field {
         },
         {   join     => { category => 'marc_subfield_structures' },
             distinct => 1,
+            order_by => [ 'category', 'lib', 'lib_opac' ],
         }
     );
 }