fix: Notice PHP si query vide

action/api_select2_autocomplete.php

@@ -18,7 +18,7 @@ function action_api_select2_autocomplete_dist() {
 	// $quoi = 'demo_dogs' : in select2_autocomplete.api/demo/dogs
 
 	// Select 2 Part
-	$search = _request('q');
+	$search = _request('q') ?? '';
 	$type = _request('_type');
 	$page = _request('page') ?: 1;
 	// $type = 'query' or 'query_append' (if paginated request)
@@ -40,8 +40,10 @@ function action_api_select2_autocomplete_dist() {
 
 	// Run
 	$res = false;
-	if (strlen($search) and
-		$autocomplete = charger_fonction('select2_autocomplete_' . $quoi, 'action', true)) {
+	if (
+		strlen($search)
+		&& ($autocomplete = charger_fonction('select2_autocomplete_' . $quoi, 'action', true))
+	) {
 		$res = $autocomplete($search, $page, 20);
 	}
 	if (!$res) {

javascript/spip_select2.js

@@ -109,6 +109,10 @@
 		if (select.hasAttribute('id')) {
 			select.setAttribute('id', select.getAttribute('id').trim() + ':select2');
 		}
+		if (select.hasAttribute('placeholder')) {
+			select.dataset.placeholder = select.getAttribute('placeholder');
+			select.removeAttribute('placeholder');
+		}
 		if (!select.dataset.separator) {
 			select.dataset.maximumSelectionLength = 1;
 		}