Bug 33457: Improve display of fund users when the patron has no firstname

This patch updates the way the fund modification page handles patron
names so that a patron with only a first name or only a surname will
have their name appear correctly when selected as a manager or a user.

To test, apply the patch if necessary, create a patron with only a first
name and one with only a surname and give them acquisitions permissions.

- Go to Administration -> Funds.
- Edit a fund.
- Click 'Add users'.
- Select a user, only staff users will be searchable
- Select one of the patrons you created.
  - The patron name should appear correctly
  - Test with both your first name only patron and your last name only
    patron.
- Perform the same test with the 'Select owner' process.

Signed-off-by: Lucas Gass <lucas@bywatersolutions.com>
Signed-off-by: Martin Renvoize <martin.renvoize@ptfs-europe.com>
Signed-off-by: Katrin Fischer <katrin.fischer@bsz-bw.de>

koha-tmpl/intranet-tmpl/prog/en/includes/patron-search.inc

@@ -650,7 +650,7 @@
                 e.preventDefault();
                 var borrowernumber = $(this).data("borrowernumber");
                 var borrower_data = JSON.parse($("#borrower_data"+borrowernumber).val());
-                add_user( borrowernumber, borrower_data.firstname + " " + borrower_data.surname );
+                add_user( borrowernumber, ( borrower_data.firstname ? borrower_data.firstname : "" ) + ' ' + ( borrower_data.surname ? borrower_data.surname : "" ) );
             });
 
             $("body").on("click",".select_user",function(e){

koha-tmpl/intranet-tmpl/prog/en/modules/admin/aqbudgets.tt

@@ -558,7 +558,7 @@
 
             function select_user(borrowernumber, borrower) {
                 ownerRemove();
-                var borrowername = borrower.firstname + ' ' + borrower.surname;
+                var borrowername = ( borrower.firstname ? borrower.firstname : "" ) + ' ' + ( borrower.surname ? borrower.surname : "" );
                 if (borrowernumber) {
                     var ownerlink = '<a href="/cgi-bin/koha/members/moremember.pl'
                         + '?borrowernumber=' + borrowernumber + '">'