fix: add error handling to Classes page submit and delete

apps/admin/src/pages/Classes/index.tsx

@@ -118,27 +118,35 @@ const ClassesPage: React.FC = () => {
   };
 
   const handleSubmit = async () => {
-    const values = await form.validateFields();
-    const payload = {
-      ...values,
-      startDate: values.startDate?.format('YYYY-MM-DD'),
-      endDate: values.endDate?.format('YYYY-MM-DD'),
-    };
-    if (editing) {
-      await api.put(`/classes/${editing.id}`, payload);
-      message.success('更新成功');
-    } else {
-      await api.post('/classes', payload);
-      message.success('创建成功');
+    try {
+      const values = await form.validateFields();
+      const payload = {
+        ...values,
+        startDate: values.startDate?.format('YYYY-MM-DD'),
+        endDate: values.endDate?.format('YYYY-MM-DD'),
+      };
+      if (editing) {
+        await api.put(`/classes/${editing.id}`, payload);
+        message.success('更新成功');
+      } else {
+        await api.post('/classes', payload);
+        message.success('创建成功');
+      }
+      setModalOpen(false);
+      fetchData();
+    } catch (e: any) {
+      message.error(e?.message || '操作失败');
     }
-    setModalOpen(false);
-    fetchData();
   };
 
   const handleDelete = async (id: number) => {
-    await api.delete(`/classes/${id}`);
-    message.success('已删除');
-    fetchData();
+    try {
+      await api.delete(`/classes/${id}`);
+      message.success('已删除');
+      fetchData();
+    } catch (e: any) {
+      message.error(e?.message || '删除失败');
+    }
   };
 
   const columns: ColumnsType<ClassItem> = [