From 806c64be3a2e2c0177f8889675df84e75e71c72e Mon Sep 17 00:00:00 2001
From: Vincent Vanwaelscappel <vincent@cubedesigners.com>
Date: Mon, 28 Feb 2022 10:10:06 +0100
Subject: [PATCH] wip #5127 @0.5

---
 .../Controllers/CubistSelect2Controller.php   | 30 +++++++++++++++++--
 src/app/Magic/Fields/SelectFromArray.php      | 13 ++++++--
 .../views/fields/select2_from_array.blade.php | 13 ++++----
 3 files changed, 43 insertions(+), 13 deletions(-)

diff --git a/src/app/Http/Controllers/CubistSelect2Controller.php b/src/app/Http/Controllers/CubistSelect2Controller.php
index 339c709..470fda1 100644
--- a/src/app/Http/Controllers/CubistSelect2Controller.php
+++ b/src/app/Http/Controllers/CubistSelect2Controller.php
@@ -3,6 +3,8 @@
 namespace Cubist\Backpack\Http\Controllers;
 
 use Cubist\Backpack\Http\Controllers\Base\XSendFileController;
+use Cubist\Backpack\Magic\Fields\SelectFromArray;
+use Cubist\Util\Text;
 use Illuminate\Support\Facades\Auth;
 
 class CubistSelect2Controller
@@ -15,8 +17,32 @@ class CubistSelect2Controller
         if (!can('edition')) {
             return response(null)->setStatusCode('403');
         }
-        $data = json_decode(storage_path('select2/' . $hash . '.json'));
-        $res = [];
+
+        $perPage = 10;
+        $data = json_decode(file_get_contents(storage_path('select2/' . $hash . '.json')), true);
+        $term = request()->get('q', null);
+        $page = request()->get('page', 1);
+        $offset = ($page - 1) * $perPage;
+        if (null === $term) {
+            $sub = $data;
+        } else {
+            $search = SelectFromArray::normalize($term);
+            $sub = [];
+            foreach ($data as $k => $v) {
+                if (strpos($v['n'], $search) !== false) {
+                    $sub[$k] = $v;
+                }
+            }
+        }
+        $sub = array_slice($sub, $offset, $perPage, true);
+        $results = [];
+        foreach ($sub as $k => $v) {
+            $results[] = ['id' => $k, 'text' => $v['t']];
+        }
+
+        $res = ['results' => $results, 'pagination' => ['more' => count($sub) == $perPage]];
         return response()->json($res);
     }
+
+
 }
diff --git a/src/app/Magic/Fields/SelectFromArray.php b/src/app/Magic/Fields/SelectFromArray.php
index a6a795e..1a1055c 100644
--- a/src/app/Magic/Fields/SelectFromArray.php
+++ b/src/app/Magic/Fields/SelectFromArray.php
@@ -5,6 +5,7 @@ namespace Cubist\Backpack\Magic\Fields;
 
 
 use Cubist\Backpack\CubistBackpackServiceProvider;
+use Cubist\Util\Text;
 
 class SelectFromArray extends Field
 {
@@ -33,11 +34,10 @@ class SelectFromArray extends Field
             $this->setAttribute('allows_null', false);
         }
         if ($this->getAttribute('ajax', false)) {
-            $results = [];
+            $data = [];
             foreach ($this->getOptions() as $k => $v) {
-                $results[] = ['id' => $k, 'text' => $v];
+                $data[$k] = ['t' => $v, 'n' => self::normalize($v)];
             }
-            $data = ['results' => $results, 'pagination' => ['more' => false]];
             $hash = hash('sha256', print_r($data, true));
             $name = $hash . '.json';
             $dir = \Cubist\Util\Files\Files::mkdir(storage_path('select2'));
@@ -98,4 +98,11 @@ class SelectFromArray extends Field
     {
         return $this->getColumnData()['options'];
     }
+
+    public static function normalize($str)
+    {
+        $str = trim($str);
+        $str = mb_strtolower($str);
+        return Text::removeAccents($str);
+    }
 }
diff --git a/src/resources/views/fields/select2_from_array.blade.php b/src/resources/views/fields/select2_from_array.blade.php
index f6c3507..28e993c 100644
--- a/src/resources/views/fields/select2_from_array.blade.php
+++ b/src/resources/views/fields/select2_from_array.blade.php
@@ -89,24 +89,21 @@
 
                 function initUntriggeredSelectFromArray() {
                     // trigger select2 for each untriggered select2 box
-                    $('.select2_from_array').each(function (i, obj) {
+                    $('.select2_from_array:not(.select2-hidden-accessible)').each(function (i, obj) {
                         if ($(obj).closest('.item.sample').length > 0) {
                             return;
                         }
                         var options = {
                             theme: "bootstrap"
                         };
-
                         if ($(this).is('[data-ajax]')) {
                             options.ajax = {
-                                url: '{{backpack_url('select2')}}' +'/'+ $(this).data('ajax'),
-                                dataType: 'json'
+                                url: '{{backpack_url('select2')}}' + '/' + $(this).data('ajax'),
+                                dataType: 'json',
+                                delay: 500,
                             };
                         }
-
-                        if (!$(obj).hasClass("select2-hidden-accessible")) {
-                            $(obj).select2(options);
-                        }
+                        $(obj).addClass('init').select2(options);
                     });
                 }
             });
-- 
2.39.5