From 5586df5604ccc269cc603615f96469964eb42b8f Mon Sep 17 00:00:00 2001
From: Nick Clemens <nick@bywatersolutions.com>
Date: Wed, 9 Aug 2023 17:39:45 +0000
Subject: [PATCH] Bug 34509: Use select2 to load vendors on basket creation

This patch moves the dropdown to use select2 and avoids loading all vendors at
page load.

To test:
 1 - Create some extra vendors in your system, ideally over 20
 2 - Search for a vendor in acquisitions
 3 - Click 'New->basket'
 4 - Note the dropdown of all vendors
 5 - Choose a vendor and create a basket
 6 - Apply patch
 7 - Repeat
 8 - Note only a partial list of vendors is loaded
 9 - Search in the dropdown and confirm vendors are returned
10 - Select a vendor and create the basket
---
 acqui/basketheader.pl                         |  4 --
 .../prog/en/modules/acqui/basketheader.tt     | 57 ++++++++++++++++---
 2 files changed, 49 insertions(+), 12 deletions(-)

diff --git a/acqui/basketheader.pl b/acqui/basketheader.pl
index e79daa70a7..4cf1736715 100755
--- a/acqui/basketheader.pl
+++ b/acqui/basketheader.pl
@@ -116,9 +116,6 @@ if ( $op eq 'add_form' ) {
         $template->param(contractloop => \@contractloop,
                          basketcontractnumber => $basket->{'contractnumber'});
     }
-    my $booksellers = Koha::Acquisition::Booksellers->search(
-                        undef,
-                        { order_by => { -asc => 'name' } } );
 
     $template->param( add_form => 1,
                     basketname => $basket->{'basketname'},
@@ -127,7 +124,6 @@ if ( $op eq 'add_form' ) {
                     booksellername => $bookseller->name,
                     booksellerid => $booksellerid,
                     basketno => $basketno,
-                    booksellers => $booksellers,
                     is_standing => $basket->{is_standing},
                     create_items => $basket->{create_items},
     );
diff --git a/koha-tmpl/intranet-tmpl/prog/en/modules/acqui/basketheader.tt b/koha-tmpl/intranet-tmpl/prog/en/modules/acqui/basketheader.tt
index 88dd4cb354..643aefdf02 100644
--- a/koha-tmpl/intranet-tmpl/prog/en/modules/acqui/basketheader.tt
+++ b/koha-tmpl/intranet-tmpl/prog/en/modules/acqui/basketheader.tt
@@ -82,14 +82,8 @@
                 <li>
                     <label for="basketbooksellerid">Vendor: </label>
                     <select name="basketbooksellerid" id="basketbooksellerid">
-                    [% FOREACH b IN booksellers %]
-                        [% IF booksellerid == b.id %]
-                           <option value="[% b.id | html %]" selected="selected">[% b.name | html %]</option>
-                        [% ELSE %]
-                           <option value="[% b.id | html %]">[% b.name | html %]</option>
-                        [% END %]
-                    [% END %]
-            </select>
+                        <option value="[% booksellerid | html %]" selected="selected">Current vendor ([% booksellername | html %])</option>
+                    </select>
                 </li>
                 <li>
                     <label for="basketnote">Internal note: </label>
@@ -163,6 +157,53 @@
 [% MACRO jsinclude BLOCK %]
     [% Asset.js("js/acquisitions-menu.js") | $raw %]
     [% Asset.js("js/acq.js") | $raw %]
+    [% INCLUDE 'select2.inc' %]
+<script>
+
+$(document).ready(function() {
+
+    function display_bookseller (state) {
+        var $text;
+        $text = $('<span>'+state.text+'</span>');
+
+        return $text;
+    };
+
+    $("#basketbooksellerid").kohaSelect({
+        width: 'resolve',
+        allowClear: false,
+        ajax: {
+            url: '/api/v1/acquisitions/vendors',
+            delay: 300, // wait 300 milliseconds before triggering the request
+            cache: true,
+            dataType: 'json',
+            data: function (params) {
+                var search_term = (params.term === undefined) ? '' : params.term;
+                var query = {
+                    "q": JSON.stringify({"name":{"-like":'%'+search_term+'%'}}),
+                    "_order_by": "name",
+                    "_page": params.page
+                };
+
+                return query;
+            },
+            processResults: function (data) {
+                var results = [];
+                data.results.forEach( function ( vendor ) {
+                    results.push(
+                        {
+                            "id": vendor.id.escapeHtml(),
+                            "text": vendor.name.escapeHtml()
+                        }
+                    );
+                });
+                return { "results": results, "pagination": { "more": data.pagination.more } };
+            }
+        },
+        template: display_bookseller
+    });
+});
+</script>
 [% END %]
 
 [% INCLUDE 'intranet-bottom.inc' %]
-- 
2.30.2