fix(moderator): fixed fetching deleted users' cases

moderation/moderation.py

@@ -25,7 +25,7 @@ class Moderation(commands.Cog):
             ignore_other_bots = True
         )
         disable_dateutil()
-        self.handle_expiry.start()
+        self.handle_expiry.start() # pylint: disable=no-member
 
     async def cog_load(self):
         """This method prepares the database schema for all of the guilds the bot is currently in."""
@@ -45,8 +45,8 @@ class Moderation(commands.Cog):
         except ConnectionRefusedError:
             return
 
-    def cog_unload(self):
-        self.handle_expiry.cancel()
+    async def cog_unload(self):
+        self.handle_expiry.cancel() # pylint: disable=no-member
 
     @commands.Cog.listener('on_guild_join')
     async def db_generate_guild_join(self, guild: discord.Guild):
@@ -381,16 +381,36 @@ class Moderation(commands.Cog):
             }
             try:
                 target = await interaction.client.fetch_user(case["target_id"])
+                target_user = {
+                    'id': target.id,
+                    'name': target.name,
+                    'discriminator': target.discriminator
+                }
             except discord.errors.NotFound:
-                target = discord.User(id=case["target_id"], name="Deleted User", discriminator="0")
+                target = discord.User(id=case["target_id"], name="Deleted User", discriminator="0")  # pylint: disable=unexpected-keyword-arg, missing-kwoa
+                target_user = {
+                    'id': case['target_id'],
+                    'name': 'Deleted User',
+                    'discriminator': '0'
+                }
             try:
                 moderator = await interaction.client.fetch_user(case["moderator_id"])
+                moderator_user = {
+                    'id': moderator.id,
+                    'name': moderator.name,
+                    'discriminator': moderator.discriminator
+                }
             except discord.errors.NotFound:
-                moderator = discord.User(id=case["moderator_id"], name="Deleted User", discriminator="0")
-            target_name = target.name if target.discriminator == "0" else f"{target.name}#{target.discriminator}"
-            moderator_name = moderator.name if moderator.discriminator == "0" else f"{moderator.name}#{moderator.discriminator}"
+                moderator = discord.User(id=case["moderator_id"], name="Deleted User", discriminator="0")  # pylint: disable=unexpected-keyword-arg, missing-kwoa
+                moderator_user = {
+                    'id': case['moderator_id'],
+                    'name': 'Deleted User',
+                    'discriminator': '0'
+                }
+            target_name = target_user['name'] if target_user['discriminator'] == "0" else f"{target_user['name']}#{target_user['discriminator']}"
+            moderator_name = moderator_user['name'] if moderator_user['discriminator'] == "0" else f"{moderator_user['name']}#{moderator_user['discriminator']}"
             embed = discord.Embed(title=f"📕 Case #{case['moderation_id']}", color=await self.bot.get_embed_color(None))
-            embed.description = f"**Type:** {str.title(case['moderation_type'])}\n**Target:** {target_name} ({target.id})\n**Moderator:** {moderator_name} ({moderator.id})\n**Resolved:** {bool(case['resolved'])}\n**Timestamp:** <t:{case['timestamp']}> | <t:{case['timestamp']}:R>"
+            embed.description = f"**Type:** {str.title(case['moderation_type'])}\n**Target:** {target_name} ({target_user['id']})\n**Moderator:** {moderator_name} ({moderator_user['id']})\n**Resolved:** {bool(case['resolved'])}\n**Timestamp:** <t:{case['timestamp']}> | <t:{case['timestamp']}:R>"
             if case['duration'] != 'NULL':
                 td = timedelta(**{unit: int(val) for unit, val in zip(["hours", "minutes", "seconds"], case["duration"].split(":"))})
                 duration_embed = f"{humanize.precisedelta(td)} | <t:{case['end_timestamp']}:R>" if case["expired"] == '0' else str(humanize.precisedelta(td))