fix no avatar

fastapi_admin/routes/login.py

@@ -26,6 +26,7 @@ async def login(
         'user': {
             'username': user.username,
             'is_superuser': user.is_superuser,
+            'avatar': user.avatar if hasattr(user, 'avatar') else None
 
         },
         'token': jwt.encode({'user_id': user.pk}, app.admin_secret, algorithm='HS256')

front/src/components/Sidebar.vue

@@ -5,7 +5,8 @@
         <b-img class="site-logo" :src="site.logo" fluid/>
       </a>
 
-      <b-img rounded="circle" :src="auth.user.avatar" height="70" blank-color="#777" alt="avatar" class="m-2"/>
+      <b-img v-if="auth.user.avatar" rounded="circle" :src="auth.user.avatar" height="70" blank-color="#777"
+             alt="avatar" class="m-2"/>
       <div class="my-3" v-if="site.sidebar_userinfo !== false" v-show="!collapsed">
         <h5 style="letter-spacing:2px">{{site.name}}</h5>
         <template v-if="auth.user">