adresses #1224

CHANGELOG.md

@@ -29,6 +29,7 @@ All Notable changes to `Backpack CRUD` will be documented in this file
 ### Fixed
 - fixed #1762 - uploaded have unique file names even if the same file is submitted twice in the same form;
 - fixed #1652 - small ```table``` field and ```table``` column bugs when inserting empty last rows;
+- adresses #1224 - ```select2_from_array``` with multiple now shows empty option when all are unselected;
 
 
 ## [3.6.27] - 2019-08-17

src/resources/views/fields/select2_from_array.blade.php

@@ -1,4 +1,7 @@
 <!-- select2 from array -->
+@php
+    echo '<pre>'; var_dump($field); echo '</pre>';
+@endphp
 <div @include('crud::inc.field_wrapper_attributes') >
     <label>{!! $field['label'] !!}</label>
     <select
@@ -71,6 +74,10 @@
                 {
                     $(obj).select2({
                         theme: "bootstrap"
+                    }).on('select2:unselect', function(e) {
+                        if ($(this).attr('multiple') && $(this).val().length == 0) {
+                            $(this).val(null).trigger('change');
+                        }
                     });
                 }
             });