Use category_id attribute in is_in_category

Simplify the code by removing the need to check if the category is None.

1 files changed, 1 insertions, 2 deletions

diff --git a/bot/utils/channel.py b/bot/utils/channel.py
index 47f70ce31..851f9e1fe 100644
--- a/bot/utils/channel.py
+++ b/bot/utils/channel.py
@@ -17,8 +17,7 @@ def is_help_channel(channel: discord.TextChannel) -> bool:
 
 def is_in_category(channel: discord.TextChannel, category_id: int) -> bool:
     """Return True if `channel` is within a category with `category_id`."""
-    actual_category = getattr(channel, "category", None)
-    return actual_category is not None and actual_category.id == category_id
+    return getattr(channel, "category_id", None) == category_id
 
 
 async def try_get_channel(channel_id: int, client: discord.Client) -> discord.abc.GuildChannel: