fix: unable to save admin billing settings

#54

src/Controllers/Admin/Setting/BillingController.php

@@ -29,6 +29,7 @@ public function __construct()
         parent::__construct();
         $this->update_field = Config::getItemListByClass('billing');
         $this->settings = Config::getClass('billing');
+        unset($this->update_field['payment_gateway']);
     }
 
     /**
@@ -60,10 +61,7 @@ public function save(ServerRequest $request, Response $response, array $args): R
             }
         }
 
-        $gateway = (new Config())->where('item', 'payment_gateway')->first();
-        $gateway->value = json_encode($gateway_in_use);
-
-        if (! $gateway->save()) {
+        if (! Config::set('payment_gateway', $gateway_in_use)) {
             return $response->withJson([
                 'ret' => 0,
                 'msg' => '保存支付网关时出错',
@@ -158,8 +156,6 @@ public function returnGatewaysList(): array
 
     public function returnActiveGateways(): ?array
     {
-        $payment_gateways = (new Config())->where('item', 'payment_gateway')->first();
-
-        return json_decode($payment_gateways->value);
+        return Config::obtain('payment_gateway');
     }
 }

src/Models/Config.php

@@ -12,6 +12,7 @@
  * @property string $value      配置值
  * @property string $class      配置类别
  * @property string $is_public  是否为公共参数
+ * @property string $type       配置值类型
  * @property string $default    默认值
  * @property string $mark       备注
  *
@@ -22,13 +23,14 @@ final class Config extends Model
     protected $connection = 'default';
     protected $table = 'config';
 
-    public static function obtain($item): bool|int|string
+    public static function obtain($item): bool|int|array|string
     {
         $config = (new Config())->where('item', $item)->first();
 
         return match ($config->type) {
             'bool' => (bool) $config->value,
             'int' => (int) $config->value,
+            'array' => json_decode($config->value),
             default => (string) $config->value,
         };
     }
@@ -81,11 +83,11 @@ public static function getPublicConfig(): array
         return $configs;
     }
 
-    public static function set($item, $value): bool
+    public static function set(string $item, mixed $value): bool
     {
         $config = (new Config())->where('item', $item)->first();
 
-        if ($config->tpye === 'array') {
+        if ($config->type === 'array') {
             $config->value = json_encode($value);
         } else {
             $config->value = $value;