Fix account type list.

app/Api/V1/Requests/Models/Account/AccountTypesApiRequest.php

@@ -24,6 +24,8 @@ declare(strict_types=1);
 namespace FireflyIII\Api\V1\Requests\Models\Account;
 
 use FireflyIII\Api\V1\Requests\ApiRequest;
+use FireflyIII\Rules\Account\IsValidAccountType;
+use FireflyIII\Rules\Account\IsValidAccountTypeList;
 use FireflyIII\Support\Http\Api\AccountFilter;
 use Illuminate\Validation\Validator;
 
@@ -33,8 +35,9 @@ class AccountTypesApiRequest extends ApiRequest
 
     public function rules(): array
     {
+        //  sprintf('in:%s', implode(',', array_keys($this->types))),
         return [
-            'types'  => sprintf('in:%s', implode(',', array_keys($this->types))),
+            'types'  => new IsValidAccountTypeList(),
         ];
     }
 

app/Rules/Account/IsValidAccountTypeList.php

@@ -0,0 +1,56 @@
+<?php
+
+/*
+ * IsValidAccountType.php
+ * Copyright (c) 2024 james@firefly-iii.org.
+ *
+ * This file is part of Firefly III (https://github.com/firefly-iii).
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see https://www.gnu.org/licenses/.
+ */
+
+declare(strict_types=1);
+
+namespace FireflyIII\Rules\Account;
+
+use Closure;
+use FireflyIII\Support\Http\Api\AccountFilter;
+use Illuminate\Contracts\Validation\ValidationRule;
+use Override;
+
+class IsValidAccountTypeList implements ValidationRule
+{
+    use AccountFilter;
+
+    #[Override]
+    public function validate(string $attribute, mixed $value, Closure $fail): void
+    {
+        
+        // only check the type.
+        $values = [];
+        if(is_string($value)) {
+            $values = explode(',', $value);
+        }
+        if(!is_array($values)) {
+            $fail('validation.invalid_account_list')->translate();
+        }
+        $keys     = array_keys($this->types);
+        foreach ($values as $entry) {
+            $entry = (string) $entry;
+            if (!in_array($entry, $keys, true)) {
+                $fail('validation.invalid_account_list')->translate();
+            }
+        }
+    }
+}